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Open Access Article
1 - Influence of chemical properties of liquid environment on the physical characteristics of laser ablation produced tungsten nanostructures
Zohreh Famili Davoud Dorranian Amir Hossein Sari -
Open Access Article
2 - Ultrasonic Assisted Removal of humic acids (HAs) from aqueous solutions on Uultrasonically polysulfone/ X% Fe2O3 mixed matrix membrane, An Experimental Design Methodology
Fereydoon Khazali Shahnaz Davoudi -
Open Access Article
3 - Structural characterization of Ba1.„Sr„TiO3 (BST) nanopowders prepared by stearic acid gel method
K. Zare M. Enhessari S. Khanahmadzadeh H. Mossallaea M. S. Sadjadi -
Open Access Article
4 - Adsorption of Pyrazolone[HPMSP1,Calix[4]-arene, Cu(II) and Cs on Carbon Nanotube
M. Vahdi K. Zare A. Boos Z. Asfari -
Open Access Article
5 - Study of histopathology and bioaccumulation of Iron oxide (Fe2O3) nanoparticles in liver of common carp (Cyprinus carpio)
Omidzahir, Sh.*, Khodabandehloo, R. , Kardel, F. , Elmi, F. .Increasing production of nanoparticles and its usage in different industries has led concerns about its dangers and toxicity in the environment, but there is not enough information about their toxicity effects, and their safety is unknown. This study tried to evaluate t MoreIncreasing production of nanoparticles and its usage in different industries has led concerns about its dangers and toxicity in the environment, but there is not enough information about their toxicity effects, and their safety is unknown. This study tried to evaluate the bioaccumulation and histopathology of iron oxide nanoparticles (Fe2O3) in liver tissues of Common carp (Cyprinus carpio). To this aim, Common carp fishes were prepared from a fish farm and transferred to the laboratory. After adapting to the laboratory conditions for a week, the fishes were divided into 4 treatments. The first treatment was considered as control and the other treatments received 50, 75 and the 100 milligrams per liter of iron oxide nanoparticles. In the days 14, 21 and 28, the fishes were randomly selected from each treatment and the liver tissues were separated and were examined for bioaccumulation and histopathology. In the present study the result of the statistical analysis showed in the day 21 of the experiment, the concentration of Iron was significantly higher than other treatments in the liver. Histopathological examination in liver showed the most lesions in treatment 4 in day28 included severe necrosis and vacuolar degeneration, infiltration of inflammatory cells mild and hyperemia. The results of present study showed by increasing of dose and exposure time of iron oxide nanoparticles (Fe2O3) the lesions in hepatocytes increased and iron concentration in liver decreased. Manuscript profile -
Open Access Article
6 - Study on the effective process parameters simultaneously for degradation of Reactive Blue 19 dye from contaminated water by TiO2/Fe2O3 supported on clinoptilolite
Arsou Arimi Mehrdad Farhadian Alireza Solaimany nazar Nila DavariBackground and Objective: In this study, a nanophotocatalyst with more effective efficiency was synthesized by doping of TiO2 and Fe2O3 nanoparticles supported on natural zeolite. Main and interacting factors in the process and determining optimum operating conditions d MoreBackground and Objective: In this study, a nanophotocatalyst with more effective efficiency was synthesized by doping of TiO2 and Fe2O3 nanoparticles supported on natural zeolite. Main and interacting factors in the process and determining optimum operating conditions degradation efficiency Reactive Blue 19 dye degradation efficiency were investigated. Method: Synthesized nanophotocatalyst was characterized by XRD, XRF, FT-IR, FE-SEM and EDX analyses. Efficiency of the nanophotocatalyst for the degradation of Reactive Blue 19 dye with UV lamp at 254 nm wavelength was studied via Taguchi method and the parameters were chosen as following: pH (2-7), dye concentration (50-200 mg/l), irradiation time (30-120 min), and nanophotocatalyst concentration (0.5-1.5 g/l). Findings: pH, dye concentration, and irradiation time were the most effective factors in these experiments respectively. The complete degradation of contaminant was achieved at optimal conditions as follows: dye concentration=50 mg/l, irradiation time=120 min, pH=2 and nanophotocatalyst concentration=1.5 g/l. Discussion and Conclusions: This study showed that the synthesized Nano photo catalyst has acceptable efficiency for the degradation of a non-biodegradable pollutant. Manuscript profile -
Open Access Article
7 - An Investigation into Self-Purification and Modeling of Changes in Nitrogen and Phosphor along Dez River (The Distance between Dez Dam and Band Ghir Bridge)
Omid Babamiri Safar Marofi Arash AzariBackground and Objective: It is necessary to use mathematical models to determine the expected reaction of a river to the effects of entrance of pollutants. Such models can simulated the effects of current and future loadings and help managers and authorities make their MoreBackground and Objective: It is necessary to use mathematical models to determine the expected reaction of a river to the effects of entrance of pollutants. Such models can simulated the effects of current and future loadings and help managers and authorities make their final decisions. The purpose of this study is to simulate and be aware of the trend of nitrogen and phosphorus changes along the Dez River (Dez Dam to Ghir Dam Bridge) using the Qual2kw model and also to calculate the percentage of river self-purification. Method: The present study was aimed at measuring and comparing the data of the quality of Dez River water collected from three stations. Self-purification model of the river was determined by inserting qualitative and quantitative data retrieved from the stations, and the entering wastewaters in the dry season were created and calibrated. Findings: The results of the present study showed that the river has poor self-purification power. The highest self-purification power was related to N-NH4 parameter in 2014 (45%). The level of non-organic phosphor along the river had an increasing trend. Discussion and Conclusion: The level of nitrate nitrogen and ammonia nitrogen within the distance of 173 to 90 km of the river had an increasing trend due to influx of sewage. The best modelling for N-NH­4 parameter was related to 2016 with a standard error of 0.02. Manuscript profile -
Open Access Article
8 - Comparative Study of Propensity for Amyloidogenesis in Male and Female Rats
کیوان جمشیدی پژمان مرتضوی احمد رضا دانشور -
Open Access Article
9 - Application of Magnetic Nano Adsorbent Fe2O3 for Removal of Hazardous Ponceau-S Dye from Aqueous Solution
B. N. Patil D. S. Shirsath Y. V. Marathe V. S. Shrivastava -
Open Access Article
10 - Removal of Humic Acids (HAs) in Drinking Water by Adsorption onto Polysulfone/Fe2O3 Mixed Matrix Membrane: Study kinetics and Isotherm Analysis
Moslem Rahmani piani Maryam Abrishamkar Bijan Mombini Godajdar Mina Hossieni -
Open Access Article
11 - Preparation and Application of Fe3O4@SiO2@OSO3H Nanocomposite as a Green Catalyst for the Synthesis of Octahydroquinazolinones
Mohammad Ali Ghasemzadeh -
Open Access Article
12 - Fabrication of Graphene–LaMnO3 Sensor for Simultaneous Electrochemical Determination of Dopamine and Uric Acid
Sedigheh Akbari Shohreh Jahani Mohammad Mehdi Foroughi Hadi Hassani Nadiki -
Open Access Article
13 - Synthesis of Some Arylidene Heterobicyclic Compounds using Nano Al2O3-SO3H under Sonication Conditions
Noshin Seif Asadollah Farhadi Rashid Badri Ali Reza Kiasat -
Open Access Article
14 - Green Synthesis of α-Fe2O (hematite) Nanoparticles using Tragacanth Gel
Saeid Taghavi Fardood Ali Ramazani Zahra Golfar Sang Woo Joo -
Open Access Article
15 - A Highly Efficient Protocol for the Synthesis of 2-Amidoalkylphenols using SO3H-Functionalized Phthalimide (SFP) under Solvent-free Conditions
Abdolkarim Zare Maryam Maghsoudi Bentolhoda Gholami Ahmad Reza Moosavi-Zare -
Open Access Article
16 - Synthesis of Arylidene (thio)barbituric Acid Derivatives using Bentonite as a Natural and Reusable Catalyst in Green Media
Mahdieh Yahyazadehfar Sayed Ali Ahmadi Enayatollah Sheikhhosseini Dadkhoda Ghazanfari -
Open Access Article
17 - Synthesis of Single-Crystalline Octahedral Co3O4 with Solid-State Thermal Decomposition
Aliakbar Dehno Khalaji -
Open Access Article
18 - Sodium Bismuthate: An Efficient Catalyst for the One-pot Synthesis of Biologically Active Spiro[4H-pyran] Derivativesunder Solvent-free Conditions
Farzaneh Mohamadpour Malek Taher Maghsoodlou Reza Heydari Mojtaba Lashkari -
Open Access Article
19 - Synthesis of Some Biginelli-type Products: Nano Alumina Sulfonic acid (NASA) Catalyzed under Solvent-free Condition
Asadollah Farhadi Mohammad Ali Takassi Marzieh Enjilzadeh Fereshteh Davod -
Open Access Article
20 - Synthesis and Identification of SO3H-functionalized Phthalimide (SFP) as an Efficient Catalyst for the Condensation of Dimedone with Arylaldehydes
Abdolkarim Zare Hakimeh Asvar Fatemeh Zarei Maryam Khalili Zahra Kordrostami Ahmad Reza Moosavi-Zare Vahid Khakyzadeh -
Open Access Article
21 - Improve Synthesis of Iron Oxide Nanorode with Hydrothermal Method
M. Aghazadeh Fatemeh Aghazadeh -
Open Access Article
22 - Ultrasonic Irradiation Assisted Enantioselective Synthesis of Alzheimer’s Disease Drug Rivastigmine Tartrate by Using Nanocatalyst
Hossein Asadnezhad Ali Saberi Abbas Azimi Roshan -
Open Access Article
23 - Increasing the strength of cement and improving the corrosion resistance of rebar inside it using Fe2O3 nanoparticles
Fatemeh Abdi -
Open Access Article
24 - Thermal Oxidation Times Effect on Structural and Morphological Properties of Molybdenum Oxide Thin Films Grown on Quartz Substrates
Alireza Hojabri Fatemeh Hajakbari Yalda Ghodrat -
Open Access Article
25 - New and Simple Strategy for Dechlorination of Nitrochlorobenzene over Ni/La-Al2O3 Nanocatalyst
Ebrahim Babaei Nader Rostameizadeh -
Open Access Article
26 - Microstructural Investigation of BaTiO3 Plasma Sprayed Coating Deposited by Splash and Disk-Like Splats
A.H. Pakseresht -
Open Access Article
27 - Preparation and Characterization of Molybdenum Trioxide Thin Films Grown by Two-Step Method: DC Sputtering and Plasma Oxidation
Nouri Z Hojabri A Hajakbari F -
Open Access Article
28 - The Effect of Ultrasonic Intensity on the Sonochemical Synthesis of γ-Fe2O3 Nanostructures
A. Hassanjani-Roshan M.R. Vaezi A. Kazemzadeh S.M. Kazemzadeh -
Open Access Article
29 - Synthesis of Calcium Titanate Nanoparticles via MASHS
S.A. Manafi M. Jafarian -
Open Access Article
30 - The Effective Factors on Tungsten Inert Gas (TIG) Welding of Al6061/Al2O3 Metal Matrix Composites
S.A. Manafi M. Boroumand I. Farahbakhsh -
Open Access Article
31 - Investigating and Comparing the Electronic and Magnetic Structure of A/B Super-lattice Compared to its Crystalline Composition (A=LaMnO3, LaTiO3 & B=SrTiO3, SrMnO3)
F. Pirvand-Bouri A. Aezami -
Open Access Article
32 - Fabrication and Wear Behavior of Nano-Al2O3 Dispersed NiTi-Based Composites by Mechanical Alloying and Hot Isostatic Pressing
M. Farvizi T. Ebadzadeh M.R. Vaezi A.R. Simchie -
Open Access Article
33 - Preparation of YAG – Al2O3 Composite Fiber Nanostructure by Sol-Gel Method
M. Shojaie E. Taheri Nassaj -
Open Access Article
34 - Nucleophilic Chemistry of γ-Al2O3 Nanoparticles Catalyst for Decontamination of 2-Chloro Ethyl Ethyl Sulfide and Dimethyl Methyl Phosphonate
M. Sadeghi M.H. Hosseini -
Open Access Article
35 - Synthesis of C/Cr2O3 Composite Microspheres Contains Cr2O3 Nanoparticles and Evaluation Effect of Solvothermal Processing Parameters on the Composite Morphology
A.H. Asrari B. Shayegh Boroujeny -
Open Access Article
36 - Effect of Inter-Cavity Spacing and Heat Treatment in Friction Stir Processing/Welding (FSP/FSW) Al7075 Composites Containing Al2O3 and Graphene Nanomaterials using Charpy Impact Test
Ali Hosseinzadeh Mahmoud Shariati Danial Ghahremani-moghadam Mohammad Reza Maraki -
Open Access Article
37 - Designing a Comprehensive Human Resources Model Based on ISO34000 Standard
Shirin Danaei Shandiz Davod Ghoroneh Moslem Charabin Ahmad Akbari -
Open Access Article
38 - One-pot synthesis of 1,2,4,5-tetrasubstituted Imidazoles using BiFeO3
Roya Nazarpour Behnam Amiri -
Open Access Article
39 - Synthesis of Nano-Maghemite supported coconut chaff catalyst for Mannich reaction
Marion Sossamon Shannyn Cotilard -
Open Access Article
40 - First Principles calculation High Spin to Low Spin transition in the SrMnO3 and the CaMnO3 compound
Narges Saki Azadeh Aezami -
Open Access Article
41 - Synthesis, characterization and first application of perovskite LaFeO3 nano particles for the synthesis of tetrahydropyridine derivatives
Melika Eftekhar Iman Khosravi Vahid Jozari -
Open Access Article
42 - Investigating the magnetic configuration of (LaMnO3)1/(SrTiO3)4, (LaMnO3)2/(SrTiO3)4, (LaMnO3)3/(SrTiO3)4 Superlattices using the Stoner-Wolfarth model
Fatemeh Pirvand boori Azadeh Aezami -
Open Access Article
43 - بررسی خواص ساختاری و مغناطیسی ابرشبکه LaFeO3/LaMnO3 با استفاده از لایههای ترکیب بلوریLaFeO3 و LaMnO3
آنا خواجه نژاد -
Open Access Article
44 - Experimental Investigation of Mechanical Behavior of Improved Marly Soil Using Nano Calcium Carbonate
Ali Ohadian Mehdi Mokhberi -
Open Access Article
45 - The Prevention of Environmental Damage in Durable Unsymmetrical Huge-capacitors Based on MnO2 and Fe2O3 Nanotubes
M. Ebrahimi seyed Ali Haj Seiyed Taghia -
Open Access Article
46 - Relationship between Balanced Fertilization and Healthy Agricultural Products (A Review)
M.J. MalakoutiBased on World Health Organization (WHO) report, our society’s health ranks 123 among 192 countries. Unfortunately, this ranking position is very low and its main reason is malnutrition due to imbalanced fertilization. Although more than 85% of Iranian people are MoreBased on World Health Organization (WHO) report, our society’s health ranks 123 among 192 countries. Unfortunately, this ranking position is very low and its main reason is malnutrition due to imbalanced fertilization. Although more than 85% of Iranian people are not hungry, about 90% of them are suffering from cell hunger, because agricultural authorities and hence producers do not pay attention to food security. According to the latest information, about 86.5% of applied fertilizers in our country appertain to urea and triple super phosphate. In fact, this is an alarming issue in respect to the production of healthy agricultural products and it remains a threat to food security. At present, a total subsidy of more than 7,000 billion rials is paid for nitrogen (N) and phosphate (P) fertilizers. Whereas, it should be considered that, firstly, the efficiency of these fertilizers, due to different reasons such as mismanagement and existing subsidy level, is low and, secondly, the overuse of these fertilizers causes the accumulation of nitrate (NO3) and cadmium (Cd) in agricultural products. Furthermore, according to the law of minimum, the overdosed fertilizers do not have any special positive effect on sustainable production and society’s health. Paying for such high-cost subsidy just for N and P-fertilizers has caused farmers to overuse and waste these fertilizers in the country and moreover not having any tendency to apply biologic, organic and micronutrient fertilizers. Whereas, the application of these fertilizers, beside their adaptability with the environment, has a very positive effect on the human health. Therefore, at this time scientific management of production and application of all kinds of fertilizers is inevitable. In this case, by improving the quality of all types of fertilizers, and following the principle of balanced fertilization, besides achieving the desired yield increase, the quality of agricultural products will be enhanced and the level of society’s health will be promoted automatically. Furthermore, there is a close and positive relationship between balanced fertilization and production of healthy agricultural products. The authorities of the Ministry of Jehad-e- Agriculture are supposed to consider this important principle for a) supplying suitable kinds and amounts of fertilizers during application seasons in producing agricultural products; b) banning the act of burning the plants' residues; c) considering the rules of balanced fertilization; d) enrichment of agricultural products on the farm; e) scientific management of production and application of all kinds of fertilizers; f) implementing the criteria set for Article 61 of the Fourth Development Plan; g) avoiding the import of P-fertilizers which contain Cd in excess of 25 mg/kg and h) removing the subsidy on N and P-fertilizers in order to increase the yield and quality of agricultural products and enhance society's health. Manuscript profile -
Open Access Article
47 - Effect of different concentrations of KNO3 on physiological and biochemical properties of maize (Zea mays L.) under Salinity Stress
Homa Zarei محمد صدقی Salim Farzaneh Haniyeh SaadatIn order to investigate the effect of different concentrations of KNO3 on physiological and biochemical properties of maize (Zea mays L.) under salinity stress a factorial experiment was conducted based on completely randomized design at the University of Mohaghegh Arda MoreIn order to investigate the effect of different concentrations of KNO3 on physiological and biochemical properties of maize (Zea mays L.) under salinity stress a factorial experiment was conducted based on completely randomized design at the University of Mohaghegh Ardabili in 2021. Treatments included three salinity levels (0, 100 and 200 Mm) and three KNO3 levels (0, 1.5 and 3%). The results showed that the highest germination percentage (GP), germination rate (GR), germination uniformity (GU), radicle and plumule length (RL and PL) and radicle fresh and dry weight (RFW and RDW) was related to priming with KNO3 3% and without salinity. Mean of germination time (MGT) compared to the control showed a reduction about 53%. The activity of catalase, peroxidase and superoxide dismutase enzymes in priming with KNO3 3% and 200 mM salinity compared to the control showed an increase about 56, 68 and 67%, respectively. Salinity decreased the activity of amylase, but priming with KNO3 increased the activity of this enzyme. The total seed protein content in KNO3 3% pretreatment and without salinity was increased about 63%. In general, priming with KNO3 3% solution can be considered as the best treatment to improve the physiological and biochemical properties of corn under salinity stress. Manuscript profile -
Open Access Article
48 - Thermodynamic analysis of nanocrystalline solid solution formation in the W-Co-Si ternary system by mechanical alloying
Majid zarezadeh Reza Beygi -
Open Access Article
49 - Sol-gel synthesis and characterization of alumina-15%mullite composite nanopowder
Ali Sedaghat E. Taheri-Nassaj G. Soraru R. Ceccatob T. Ebadzadeh -
Open Access Article
50 - Effect of morphology and nonbounded interface on dielectric properties of plasma sprayed BaTiO3 Coating
Amirhossein Pakseresht Mohamadreza Rahimipour Mohamadreza Vaezi Mehdi Salehi -
Open Access Article
51 - Magnetic and Structural Characteristics of Fe2O3 Nanostructure Synthesized in the Presence of Sour Cherry Juice
Mahboubeh Kargar Majid Ghashang Mohammad Reza Mohammad Shafiee -
Open Access Article
52 - Alfa- Bismuth(III)oxide catalyzed Biginelli reactions using experimentally designed optimized condition
Mahdi Behzad marzie sabaghian Hamideh samari jahromi -
Open Access Article
53 - Inclusion Removal Mechanisms of Al-Killed 304 Low Carbon Stainless Steel Melt Using Hercynite Coated Al2O3-C Ceramic Foam Filters
Ali Baghaei Amir Abbas Nourbakhsh Reza Ebrahimi-Kahrizsangi -
Open Access Article
54 - Assessment of effect different levels of CuSo4 and Pb(NO3)2 on seed germination and growth of Agropyron trichophrum
mehrnoosh parsa Saeedi Goraghany Hamid Reza Ali Asghar HashemiAbstract The purpose of this study was to evaluate the effect of different levels of Cu and Pb on seed germination and growth of Agropyron trichophrum species under laboratory conditions. In order to evaluate the effect of these factors on germination and growth of Agr MoreAbstract The purpose of this study was to evaluate the effect of different levels of Cu and Pb on seed germination and growth of Agropyron trichophrum species under laboratory conditions. In order to evaluate the effect of these factors on germination and growth of Agropyron trichophrum seeds of these two tests in a completely randomized design with five treatments (0, 20, 50, 100 and 150 ppm) of salinity and drought in four replications. The study of germinated seeds per day, percentage and germination rate and growth rate is calculated by measuring was determined whether Radicle length, Plumble length Alomtric and Seed vigor. For statistical analysis of data from different characteristics of germination and early growth of SPSS20software. In this study, analysis of variance was used to compare the averages Duncan method. The results showed that different concentrations of copper sulfate (CuSo4) and lead nitrate (Pb(NO3)2) the index of germination and growth of seeds Agropyron trichophrum species have significantly different treatments with increasing concentrations of copper, germination present, Radicle length, Plumble length Alomtric and Seed vigor of plants or reduced. Also, none of the elements lead and copper had no significant effect on the Alomtric index and low concentrations of these elements are not the limiting factor for the growth of this species Manuscript profile -
Open Access Article
55 - The effects of different concentrations of NH4NO3 and KNO3 on developmental-cellular variation of microtubers in Solanum tuberosum L. var agria In vitro conditions.
زهرا Zare علیرضا Iranbakhsh, مصطفی Ebadi,The potato (Solanum tuberosum L.) is one of the most important agricultural plants in the world. Today, potato is the fourth most important food crop in the world after wheat, rice and corn. It is propagated predominantly by asexual method (tubers and minitubers). Howev MoreThe potato (Solanum tuberosum L.) is one of the most important agricultural plants in the world. Today, potato is the fourth most important food crop in the world after wheat, rice and corn. It is propagated predominantly by asexual method (tubers and minitubers). However, propagation by true seed is primarily used for breeding purposes (enhancement of breeding populations) and genetic studies. The traditional methods for asexual propagation of the plant face important problems including contamination of tubers and plants and decreased crops. Therefore, the seed tubers can be replaced by micrutubers produced by tissue culture. In this study solid and culture media used for produce of sterile plantlets and microtuberization. The aim of this study is search about effect of different concentrations of NH4NO3 and KNO3 in media culture Invitro in histological/ cellular variations of the microtubers. The concentrations of 0, 1/2, 1, 3/2 and 2 times more than standard concentrations of the above mentioned compounds in MS medium were used in separate induction media. The results showed that the alternating light and darkness is more suitable for the variety Agria and the samples kept in absolute darkness demonstrated no microtuberization in this study. Sections for light microscopy were prepared from microtubers in each sample after their dimensions were measured and morphological studies carried out. The aim was to study the histological aspects of samples. The number of cell rows, the dimensions of the cells and the starch content of the parenchymal tissues of microtuber's pulp and the cortex were analyzed. The results again showed significant variations in histological features of the microtubers developed in media containing different concentrations of macronutrients. In this study, KNO3 with concentrations of 1.5 times more than standard concentration in MS medium yielded maximum number of cell rows and maximum starch granules content which were proportional to the average dimensions of microtubers. NH4NO3, with concentrations of 1/2 to 1 time more than standard concentrations in MS medium yielded a better differentiation of parenchymal tissues than other concentrations. Manuscript profile -
Open Access Article
56 - The effects of lead pollution on the growth parameters, protein content, sugars, and anatomical structure in Medicago sativa L.
سارا Saadatmand حمید Fahimi AR AlaeddiniIn this investigation, the effects of various concentrations of Pb(NO3)2 (0.25–0.5–1–2mM) on the growth parameters in Medicago sativa L. were studied. The Treatment period was 20 days and the end of this period, the length, dry weight, and fresh weight MoreIn this investigation, the effects of various concentrations of Pb(NO3)2 (0.25–0.5–1–2mM) on the growth parameters in Medicago sativa L. were studied. The Treatment period was 20 days and the end of this period, the length, dry weight, and fresh weight of roots and shoots, leaves area, microscopically observation, accumulation of lead in roots and shoots, determination of soluble and insoluble sugars, total proteins and profile of proteins by SDS-PAGE, measured and studied. The statistical studies were carried out by SPSS software and variance analysis (ANOVA) and Duncan test. The results showed that lead toxicity decreased significantly roots and shoots length, leaves area, dry and fresh weight and in the high concentration of Pb+2, lignin biosynthesis and fiber were increased. Analyzing of lead content in the roots and shoots by atomic absorption indicated that, the lead absorption excess by increasing level of lead in treatments. When the concentration of lead increased, the amount of soluble sugars in shoots and roots were decreased whereas insoluble sugars in shoots were increased but in roots were decreased. By increasing lead in treatment both in shoots and roots, the total protein increased. The profile of proteins by SDS-PAGE showed some changes as compared with control plants. This research indicated that the Medicago sativa L. is a heavy metal tolerant plant and absorbed high level of lead from soil and accumulated in roots and shoots tissues. Manuscript profile -
Open Access Article
57 - Structural, Magnetic and Catalytic Properties of Non-Stoichiometric Lanthanum Ferrite Nano-Perovskites in Carbon Monoxide Oxidation
Zahra Ramezani Azim Malekzadeh Mahnaz ghiasi Ahmad Gholizadeh Elham Ghiasi -
Open Access Article
58 - Employing α-Fe2O3 /Mn2P2O7 as a nano photocatalyst for degradation of toluene in aqueous environment
Sajjad Mafi Kazem Mahanpoor -
Open Access Article
59 - The effect of MgCl2.6H2O and NaF on properties of Chitosan / HA-Al2O3 Scaffold
Fateme Mirjalili esmail salahi Ali kaffashiyan -
Open Access Article
60 - Kinetics of Fe2O3-Al reaction prior to mechanochemical synthesis of Fe3Al-Al2O3 nanocomposite powder using thermal analysis
Mehdi Khodaei -
Open Access Article
61 - The photo degradation of methyl red in aqueous solutions by α-Fe2O3/SiO2 nano photocatalyst
Majid Saghi Aref Shokri Ali Arastehnodeh Mohammad Khazaeinejad Atena Nozari -
Open Access Article
62 - Modelling the degradation of Sunset Yellow FCF azo dye by Fe2O3/Bentonite catalyst using artificial neural networks
Reza Moradi Mohammad Ehsan Mosayebian Kazem Mahanpoor -
Open Access Article
63 - ZnO/WO3 nanocomposites: Pechini sol-gel synthesis, characterization, and photocatalytic performance for desulfurization of thiophene
Mehdi Mousavi-Kamazani Nahid Kalhori Mohammad Ghodrati -
Open Access Article
64 - Removal of Pb(II) Ion by Iron Oxide Nanoparticles Prepared by Annealing at Two Different Temperature
Aliakbar Dehno Khalaji Marketa Jarosova Pavel Machek Michal Dusek -
Open Access Article
65 - Preparation of Ag Loaded WO3 Nano Rod and Its Highly Efficient Degradation of Flumequine under Sunlight Irradiation
Somayeh Saleh Fekr Mehdi Ardjmand Reza Fazaeli Mehdi Rafizadeh -
Open Access Article
66 - Pechini Sol-Gel Synthesis and Characterization of NiWO4/W5O14/WO3 Nanocomposite for Photocatalytic Desulfurization of Thiophene
Mehdi Mousavi-Kamazani Mahvash Siahmansouri Mohammad Ghodrati -
Open Access Article
67 - Cr2O3 nanoparticles: Synthesis, characterization, optical, magnetic properties and photocatalytic degradation of methyl orange
Aliakbar Dehno Khalaji Pavel Machek Marketa Jarosova -
Open Access Article
68 - Structural, Magnetic and Catalytic Properties of Non-Stoichiometric Lanthanum Ferrite Nano-Perovskites in Carbon Monoxide Oxidation
Zahra Ramezani Azim Malekzadeh Mahnaz Ghiasi Ahmad Gholizadeh Elham Ghiasi -
Open Access Article
69 - Sol-Gel Fabrication and Photocatalytic Properties of Indium Oxide-CNT Composite
Giang Li Lnfeng Hu -
Open Access Article
70 - The effect of MgCl2.6H2O and NaF on properties of Chitosan / HAAl2O3 Scaffold
Fateme Mirjalili Ali Kafashiyan Esmail Salahi -
Open Access Article
71 - The photo degradation of methyl red in aqueous solutions by α-Fe2O3/SiO2 nano photocatalyst
Majid Saghi Aref Shokri Ali Arastehnodeh Mohammad Khazaeinejad Atena Nozari -
Open Access Article
72 - Kinetics of Fe2O3-Al reaction prior to mechanochemical synthesis of Fe3Al-Al2O3 nanocomposite powder using thermal analysis
Mehdi Khodaei -
Open Access Article
73 - Modeling the degradation of Sunset Yellow FCF azo dye by Fe2O3/Bentonite catalyst using artificial neural networks
Mohammad Ehsan Mosayebian Reza Moradi Kazem Mahanpoor -
Open Access Article
74 - Investigation of Antimicrobial and Genotoxic Effects of Fe2O3, NiO and CoO NPs Synthesized by Green Synthesis
Hayrunnisa Nadaroglu Azize Alaylı Selçuk Çeker Hatice Ogutcu Guleray Agar -
Open Access Article
75 - Employing α-Fe2O3 /Mn2P2O7 as a nano photocatalyst for degradation of toluene in aqueous environment
Sajjad Mafi Kazem Mahanpoor -
Open Access Article
76 - ZnO/WO3 nanocomposites: Pechini sol-gel synthesis, characterization, and photocatalytic performance for desulfurization of thiophene
Nahid Kalhor Mohammad Ghodrati Mehdi Mousavi-Kamazani -
Open Access Article
77 - The effects of information and communication technology on long-term productivity growth: Evidence from Iran's manufacturing industries
mahmoud rezaee seraji Mahmoud Mahmoudzadeh parvaneh salatin mehdi fathabadiThe purpose of this paper is to measure the average share of information and communication technology in long-term productivity growth and as well as the increasing intensity of ICT index in Iran's manufacturing industries at the level of double-digit codes (ISIC). For MoreThe purpose of this paper is to measure the average share of information and communication technology in long-term productivity growth and as well as the increasing intensity of ICT index in Iran's manufacturing industries at the level of double-digit codes (ISIC). For this purpose, the expanded growth accounting model in the period2005-2018was exploited. The research findings revealed that : The effects of ICT has a significant positive effect on the average long-term productivity growth in Iran's manufacturing industries. ICT's share of long-term productivity growth in The most intensive contribution of ICT has been recognized for coke and related products, electrical equipment and chemicals and related products. This effect has shown more than any other manufacturing industries in Iran and this amount has also improved over time. The lowest share of ICT in productivity growth in the long run is related to furniture, clothing and machinery and not classified equipments. The results also showed that the average value of increasing ICT intensity index is insignificant meaning the more and with increasing intensity of ICT use, the more intense effect on productivity growth increases. Manuscript profile -
Open Access Article
78 - An investigation of creative industries’ impact on human capital
Hoda Zobeiri Maryam EhsaniThe aim of this paper is to investigate the impact of creative industries on the human capital of 85 developed and developing countries. The findings indicate that “creative industries” affect the human capital of the countries. The results also displa MoreThe aim of this paper is to investigate the impact of creative industries on the human capital of 85 developed and developing countries. The findings indicate that “creative industries” affect the human capital of the countries. The results also display positive effects of production growth, government expenditure, population, and investment on human capital. The coefficient of creative industries in developed countries was found to be greater than in developing countries. As results, it is expected that the influence of creative, cultural, and artistic productions on human capital in these countries will be greater than in developing countries. The findings show that countries have a particular affinity for creative industries. Consequently, increasing focus on these sectors and fortifies the labor force with the necessary expertise to generate innovative goods and services, thereby fostering greater economic growth and prosperity and augmenting employment opportunities. . Manuscript profile -
Open Access Article
79 - Governance, National Innovation System and the Capacity for Attraction, Coherence and Technological Innovation (Theoretical Modeling)
Ali Dini Hojat Allah Hosieni Tahere Miremadi Ghasem Ramazanpoor NargesiThe main aim of this paper is to modleized a logical theoretical framework for the relations among governance, national innovation system and absorptive capacity, and technological catching-up. With this aim and using the analytical and deductive method or content based MoreThe main aim of this paper is to modleized a logical theoretical framework for the relations among governance, national innovation system and absorptive capacity, and technological catching-up. With this aim and using the analytical and deductive method or content based resoning method, relations among these factores are identified and with separating non- price factores from price variables, the model is conceptualized. The results show that 1. all of variables and factors are indigenous except the shock price policy; 2.There is an increasing circle between absorptive capacity and technological cathing-up (cumulative casualty); 3. In absence of this circle Neoclassical price polices fail in improving the technological learning and cathing-up process. Manuscript profile -
Open Access Article
80 - The Effects of Development Iran’s Economy Sectors on Income increase in Urban and Rural Groups
mohamad Kiani deh kiani seyed habib allah mousavi Sadegh khalilianThe purpose of this study is to investigate the effects of development Iran’s economy sectors on increasing the income of low, middle and high income urban and rural groups. To achieve this goal, the effects of development eight main sectors of Iran’ economy MoreThe purpose of this study is to investigate the effects of development Iran’s economy sectors on increasing the income of low, middle and high income urban and rural groups. To achieve this goal, the effects of development eight main sectors of Iran’ economy on income increase of urban and rural groups were studied by using social accounting matrix (2011) and structural analysis method. The results show that the effects of agricultural development and expansion on earnings income increment per unit increase in the final demand of this sector for all urban and rural income groups are higher than other sectors and the crude oil and natural gas sector has the least effect. Also, urban group income increase is higher than rural. Based on this, it is suggested that the agricultural sector be considered seriously in the process of development and decision-making programs for investment in the economic sectors as well as the need to pay attention to income groups. Manuscript profile -
Open Access Article
81 - Calculation of Elasticity of CO2 Emission Intensity of Energy-Intensive Industries with the Approach of Identifying Important Input-Output Coefficients
Elaheh Shareie Ali Faridzad ali asghar banoueiAbstract &nbs MoreAbstract The purpose of this study is to analyses the effect of changes in technology and distribution of economic sectors on CO2 emission intensity of the first five Iranian energy intensive industries used identifying Important Coefficients based on 2011 input-output table. The results of two Leontief Demand-Driven and Ghosh Supply-Driven Approaches show that one percent changing in technology of production and distribution of product of chemical materials and chemical products manufacturing, coking, processing of petroleum and nuclear fuel and manufacture of basic metal products will reduce more than one percent of CO2 emissions intensity. Since that mentioned sectors are in inappropriate condition due to their great potential CO2 emissions intensities, hence it is essential to make emission reduction policies about these sectors to reduce CO2 emissions intensity significantly. Manuscript profile -
Open Access Article
82 - The Effects of Mining Sector and Mining Industries Development on Government Revenue and Income of Households in Iran
davoud behboudi mohammad mehdi barghi oskoee Robab Mohammadi khaneghahiAbstract The aim of this study is to investigate the effects of an increase in the investment and productivity of the mining sector on government revenue and income of households in Iran. For this respect, a dynamic computable general equilibrium (DCGE) model and socia MoreAbstract The aim of this study is to investigate the effects of an increase in the investment and productivity of the mining sector on government revenue and income of households in Iran. For this respect, a dynamic computable general equilibrium (DCGE) model and social accounting matrix (SAM) for Iran for year 1390 is used. The results showed that increasing in mining sector investment and improving its total factor productivity positively affected government revenue and income of households in both urban and rural groups. The results also reveal that the development in the mining sector in Iran has the least effect on the income of rural households and the most effect on income of urban households. Based on the results, it is necessary for policymakers to adopt policies to increase investment and improve the total factor productivity of the mining sector. Manuscript profile -
Open Access Article
83 - Impact of Technological Progress and Efficiency Changes on the Productivity Growth of Iran Agriculture Sector: Data Envelopment Analysis
mahdi salarieh Amir Mohamadi Nejad Reza MoghaddasiThe aim of this paper is to study the impact of technological progress and efficiency changes on the productivity growth of Iran agriculture sector by separated provinces.So, by using Data Envelopment Analysis and Malmquist model, the impacts of technological and effici MoreThe aim of this paper is to study the impact of technological progress and efficiency changes on the productivity growth of Iran agriculture sector by separated provinces.So, by using Data Envelopment Analysis and Malmquist model, the impacts of technological and efficiency changes during 2005-2014 have been investigated. The results show that efficiency changes on the productivity growth has dominant role and technological changes share is less. The findings, also, showed that the impact of labor changes has a positive impact on productivity growth while capital changes have a negligible impact on the factors of production productivity. Manuscript profile -
Open Access Article
84 - Impact of Fleet Renovation on the Productivity of Iran’s Road Transportation Industry
farhad khodadad kashi samaneh nourani azad bahareh ghanbari The main purpose of this article is to evaluation the impact of fleet renovation on productivity of Iran’s road transportation industry. To meet this ends the data of the Iranian road transportation and the capital-embodied technical progress g More The main purpose of this article is to evaluation the impact of fleet renovation on productivity of Iran’s road transportation industry. To meet this ends the data of the Iranian road transportation and the capital-embodied technical progress growth model were used during 1353-1393. The results of capital inventory and labor coefficients showed that the return to scale in the Iran’s road transportation was constant. Also, in this sector, new investment and renovation increased moreover the average age of the fleet reduced and it has resulted to the growth rate of qualitative capital and productivity increased. Therefore, in Iran's road transportation, the direct relationship between fleet renovation and productivity is confirmed. So, the use of superior technology equipment and the replacement of fleets by new and advanced fleets are recommended. Manuscript profile -
Open Access Article
85 - Micro Machining of AISI 440C Stainless Steel using Magnetic Field and Magnetic Abrasive Particles
Yahya Choopani Mohammad Reza Razfar -
Open Access Article
86 - اثرات تعدیلکننده پیاز و کوئرستین بر شاخصهای آتروژنیک، بیوشیمیایی سرمی و هماتولوژیک در سمیت ناشی از برومات پتاسیم در موشهای صحرایی نر نژاد ویستار
سلیمان آگو احمد آکینتولا دبورا مشیویه مایکل گبادگسین اویرونکه اودونولاBackground & Aim: This study was designed to evaluate the therapeutic effect of Allium cepa on the atherogenic, serum biochemical, and hematologic indices in Wistar rats administered KBrO3.Experimental: Forty male rats assigned into 8 groups (n=5) in which groups A, MoreBackground & Aim: This study was designed to evaluate the therapeutic effect of Allium cepa on the atherogenic, serum biochemical, and hematologic indices in Wistar rats administered KBrO3.Experimental: Forty male rats assigned into 8 groups (n=5) in which groups A, B, C, D, and E received distilled water (2 mL), KBrO3 (50 mg/kg), quercetin 70 mg/kg, aqueous extract of Allium cepa (AEAC) at 150 mg/kg and 300 mg/kg, respectively. Groups F, G, and H received KBrO3 with AEAC at 150 mg/kg, 300 mg/kg, and quercetin, respectively, on alternate days for 3 months.Results: The phytochemical analysis of the AEAC revealed the presence and absence of some phytochemical constituents. The Acute toxicity result indicated that AEAC has an LD50 above 5000mg/kg. KBrO3 caused a significant (P<0.05) decrease in the haematological parameters relative to the control but administration of KBrO3 with AEAC or quercetin improved the parameters. KBrO3 caused a significant (P<0.05) increase in the levels of triglycerides (TG), total cholesterol (TC), and low-density lipoprotein cholesterol (LDL-C), but significantly (P<0.05) lower level of HDL-C. Treatment with KBrO3 and AEAC or quercetin significantly (P<0.05) abrogated these KBrO3-induced alterations. Similar ameliorative effects of AEAC were found in KBrO3-induced alterations in atherogenic indices, such as Castelli's Risk Index I (CRI-1), Castelli's Risk Index II (CRI-II), Atherogenic Coefficient (AC), and Atherogenic Index of Plasma (AIP) indices relative to the control.Recommended applications/industries: According to the present results, AEAC showed amelioration against KBrO3-induced derangement in the haematological, lipid, and atherogenic indices and it might be helpful in the management of cardiovascular problems. Manuscript profile -
Open Access Article
87 - Synthesis of densely functionalized chromenes using a magnetic recoverable ionic liquid as the catalyst
Forough Ramazanzadeh Manouchehr Mamaghani Hossein Fallah-Bagher-Shaidaei Mehdi sheykhan -
Open Access Article
88 - TiCl2/nano-γ-Al2O3 as an efficient catalyst for synthesis of substituted pyrroles under solvent-free conditions at room temperature
Bi Bi Fatemeh Mirjalili Abdolhamid Bamoniri Zahra Fazeli -
Open Access Article
89 - Fe3O4@FSM-16-SO3H as a new magnetically recyclable nanostructured catalyst: synthesis, characterization and catalytic application for the synthesis of pyrano[2,3-c]pyrazoles
Somayeh Hashemi-Uderji Mohammad Abdollahi-Alibeik Reza Ranjbar-Karimi -
Open Access Article
90 - Synthesis, characterization and catalytic application of Fe3O4@Cys–SO3H for preparation of 2H-indazolo[1,2-b]phthalazine-triones
Somaye Nikzad Shalkouhi Hassan Kefayati Shahab Shariati -
Open Access Article
91 - An environmentally friendly approach to the synthesis of azo dyes based on 2-naphthol using kaolin-SO3H nanoparticles
Abdolhamid Bamoniri Bi Bi Fatemeh Mirjalili Nahid Yaghmaeiyan-Mahabadi -
Open Access Article
92 - Nano-Fe3O4@ZrO2-SO3H as highly efficient recyclable catalyst for the green synthesis of fluoroquinolones in ordinary or magnetized water
Ahmad Nakhaei Abolghasem Davoodnia Sepideh Yadegarian -
Open Access Article
93 - One-pot synthesis of tetrahydropyrimido[4,5-b]quinoline derivatives using sulfonic acid functionalized SBA-15 and their antimicrobial activities
Ghodsi Mohammadi Ziarani Narges Hosseini Nasab Mahshid Rahimifard Taraneh Hajiashrafi Alireza Badiei Ali Abolhassani Soorki -
Open Access Article
94 - Co3O4 nanoparticles as a robust and recoverable catalyst for one-pot synthesis of polyhydroquinolines and tetrahydrobenzopyrans
Mohammad Ali Ghasemzadeh Zahra Elyasi -
Open Access Article
95 - Rice husk ash (RHA): A Highly efficient solid acid catalyst for the oxidation of alcohols and trimethylsilyl, tetrahydropyranyl and methoxymethyl ethers with CrO3
Farhad Shirini Masoumeh Abedini Mahnaz Shamsi-Sani Mohadeseh Seddighi -
Open Access Article
96 - Kaolin-SO3H as an efficient catalyst for one-pot synthesis of 1,2,4,5-tetrasubstituted imidazoles
Bi Bi Fatemeh Mirjalili Hamidreza Akrami -
Open Access Article
97 - New method for preparation of MWCNT-SO3H as an efficient and reusable catalyst for the solvent-free synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones
Leila Moradi Gholam Reza Najafi Hakimeh Saeidiroshan -
Open Access Article
98 - Reflux condensation synthesis and characterization of Co3O4 nanoparticles for photocatalytic applications
M. Mohamed Jaffer Sadiq A. Samson Nesaraj -
Open Access Article
99 - Green synthesis of bis(indolyl)methanes in water using sulfonic acid functionalized silica (SiO2-Pr-SO3H)
Ghodsi Mohammadi Ziarani Zeinab Aslani Shima Asadi -
Open Access Article
100 - Multi-component preparation of diethyl/methyl 1,3-diaryl-1,2,3,6-tetrahydro-pyrimidine-4,5-dicarboxylates using hydrated phosphomolybdic acid as an efficient catalyst
Mehdi Abaszadeh Mohammad Seifi Majid Ghashang -
Open Access Article
101 - Phospho sulfonic acid: an efficient solid acid catalyst for the facile preparation of 1,4-dihydropyridines
Sobhan Rezayati Parisa Javanmardi -
Open Access Article
102 - Synthesis of benzimidazole derivatives using Ni2+ supported on hydroxyapatite-core@shell γ-Fe2O3 nanoparticles both under solvent and solvent-free conditions
Eshagh Rezaee Nezhad Saaid Karimian -
Open Access Article
103 - Application of SBA-Pr-SO3H as a solid acid nanoreactor in the Biginelli reaction
Ghodsi Mohammadi Ziarani Shima Ghorbi Parisa Gholamzadeh Alireza Badiei -
Open Access Article
104 - Nano-peanut shell-OSO3H: Green and natural-based renewable nanocatalyst for one-pot synthesis of dihydropyrano[3,2-b]chromenedione derivatives
Bahareh Sadeghi Zahra Lasemi Mansooreh Pisheh Abadi -
Open Access Article
105 - Oxidation of greenhouse gases, CH4 and CO, over LaMnxNi1-xO3±δ mixed oxide
Farhad Banisharif Mohammad Reza Dehghani Golshan Mazloom Yahya Hojatpanah -
Open Access Article
106 - Regularities of solid-phase interaction of tin and molybdenum oxides: Catalytic properties
Kien Cuong Dao Alexander Aleksandrovich Il’in Ruslan Nikolaevich Rumyantsev Ulyana Sergeevna Uzhevskaya Alexander Papvlovich Il’in Taisiya Andreevna Rumyantseva -
Open Access Article
107 - Spotlight: [Pyridine-SO3H]X: As a multi-versatile ionic liquid
Sima Kalhor -
Open Access Article
108 - A green method for the synthesis of indeno[1,2-b]pyridines using Fe3O4@SiO2@PrSO3H as a nanomagnetic catalyst
Zohreh Kheilkordi Ghodsi Mohammadi Ziarani Alireza Badiei Hossein Vojoudi -
Open Access Article
109 - Preparation of α-Fe2O3 Nano-photocatalyst supported on Cd(II)-Terephthalic MOF for photocatalytic removal of Cefazolin aqueous solution
Seyed Kamal Blourfrosh Kazem Mahanpoor -
Open Access Article
110 - A simple synthetic technique to produce ZnO/Fe2O3/Fe3O4 nanostructures and application as a photocatalyst
Nai-Feng Hsu Kuei-Ting Hsu -
Open Access Article
111 - Fe3O4@SiO2@Vitamin C@Fe2O3 Nanoparticles as a Novel Green Catalyst for One-pot Synthesis of 3-amino-1-aryl-1H-benzo[f]chromene-2-carbonitrile Derivatives
Naghmeh Darya Hassan Tajik -
Open Access Article
112 - Nano-[SiO2@R-Im-SO3H][CF3COO]: an effectual catalyst for the production of bis-coumarins and N,N′-alkylidene bisamides
Jaleh Atashrooz Abdolkarim Zare -
Open Access Article
113 - Facile wet chemical synthesis and characterization of zinc doped gadolinium oxide nanoparticles for enhanced photodegradation of Rhodamine B dye under illumination of UV light
Leena Vinolia Thaninki Arputharaj Samson Nesaraj Manasai Arunkumar -
Open Access Article
114 - A Novel Cobalt Organic-Inorganic Hybrid Magnetic Nanocatalyst for Convenient Four-Component Synthesis of 3,4-Dihydropyridones
Maryam Barazandehdoust Manouchehr Mamaghani Hassan Kefayati -
Open Access Article
115 - Preparation and Characterization of WO3 Nanosheets and Au/WO3 Nanocomposite for Rabid Photocatalytic degradation of methylene blue dye
Fatima Allawi Abdul Sajad Hanaa Egzar Mazin MAhdi -
Open Access Article
116 - Rapid oxidation of alcohols and trimethylsilyl and tetrahydropyranyl ethers with CrO3 in the presence of sulfonic acid functionalized ordered nanoporous Na+-montmorillonite
Farhad Shirini Masoumeh Abedini Ahmad Nasiri Abkenar Bita Baghernejad -
Open Access Article
117 - Sulfonated polystyrene/montmorillonite nanocomposite as a new and efficient catalyst for the solvent-free Mannich reaction
Ahmad Reza Massah Roozbeh Kalbasi Mitra Toghyani -
Open Access Article
118 - -Fe2O3@SiO2-PW12 nanoparticles: Highly efficient catalysts for the synthesis of pyrazoline derivatives
Hamid Aliyan Razieh Fazaeli Nafiseh Tajsaeed -
Open Access Article
119 - Triethylamine-bonded sulfonic acid {[Et3N-SO3H]Cl} as an efficient and homogeneous catalyst for the synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-ones
Abdolkarim Zare Roghayyeh Khanivar Maria Merajoddin Masoud Kazem-Rostami Mohammad Mahdi Ahmad-Zadeh Ahmad Reza Moosavi-Zare Alireza Hasaninejad -
Open Access Article
120 - Bi(NO3)3.5H2O: An efficient acidic reagent for synthesis of azo dyes at room temperature
Bi Bi Fatemeh Mirjalili Abdolhamid Bamoniri Naimeh Salehi -
Open Access Article
121 - [B(OH)3]0.78[B(OH)2(OSO3H)]0.22 as a new, cheap and eco-friendly catalyst for synthesis of acylals at room temperature under solvent free conditions
BiBi Fatemeh Mirjalili Abdolhamid Bamoniri Fahimeh Kalantari -
Open Access Article
122 - The Role of Potassium and Ascorbic acid on Some Growth and Physiological Responses in Catharanthus roseus
Neda Sahi Akbar Mostajeran -
Open Access Article
123 - Investigation of MoO3/Clin and Mn2O3-MoO3/Clin nanocomposites’ performance for thiophene removing process by adsorption/catalytic oxidation method
Masoumeh Khatamain Zahra Chenari Azin Yavari Baharak Divband Ziba Karimi Sasn Mohammadzadeh Baharak Mardangahi Sara Fazli-ShokouhiIn this research, the clinoptilolite (clin) ore from Mianeh in East Azarbaijan was used for the preparation of nanocomposites. MoO3 and Mn2O3-MoO3 oxides were loaded on acid-washed zeolites by impregnation method and MoO3/Clin and Mn2O3-MoO3/Clin composites with 18 wt. MoreIn this research, the clinoptilolite (clin) ore from Mianeh in East Azarbaijan was used for the preparation of nanocomposites. MoO3 and Mn2O3-MoO3 oxides were loaded on acid-washed zeolites by impregnation method and MoO3/Clin and Mn2O3-MoO3/Clin composites with 18 wt. % of oxides were prepared. The prepared composites were characterized by XRD, FT-IR, FESEM, and EDX techniques. The presence of peaks related to the MoO3 and Mn2O3 oxides in the XRD pattern of composites and the existence of approximately spherical nanoparticles with sizes lower than 100 nm in their SEM images confirmed the preparation of composites. The catalytic activity of nanocomposites for removing thiophene was studied by the adsorption/oxidation method and the effect of solvent type, temperature, and oxidant on removal efficiency of thiophene was investigated. The results showed that Mn2O3-MoO3/Clin composite has better catalytic activity than MoO3/Clin in removing thiophene. Moreover, the increasing of temperature and applying NaClO as an oxidant improved the thiophene's degradation efficiency by this composite. The highest removal efficiency was obtained at 298 K in water-ethanol solvent by using oxidant for Mn2O3-MoO3/Clin composite which was about 66%. By changing the solvent from a polar solution (water and ethanol) to a nonpolar solvent (n-hexane) the removal efficiency decreased. Manuscript profile -
Open Access Article
124 - Simultaneous determination of dopamine and tryptophan using modified glassy carbon electrode with dandelion like Co3O4 nanoflowers
Najmeh Sheybani Shohreh Jahani Mohammad Mehdi ForoughiIn this work glassy carbon electrode modified with dandelion like Co3O4 nanoflower is proposed as an electrochemical sensor to achieve a high-sensitivity electrochemical sensor. The morphology and purity of synthesized nanoflowers are characterized through X-ray diffrac MoreIn this work glassy carbon electrode modified with dandelion like Co3O4 nanoflower is proposed as an electrochemical sensor to achieve a high-sensitivity electrochemical sensor. The morphology and purity of synthesized nanoflowers are characterized through X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectrometer (EDX). Then electro-oxidation of the dopamine and tryptophan at the modified electrode surface was studied using cyclic voltammetry, chronoamperometry and differential pulse voltammetry. Under optimized conditions, the differential pulse voltammetric pulse current increased with increasing dopamine concentration in the range of 0.1 to 0.900 μM and the detection limit of dopamine was calculated as 0.01 μM. The modified electrode showed a very good resolution between voltammetric peak of dopamine and tryptophan, making it suitable for detecting dopamine in the presence of tryptophan in real samples. High sensitivity and good repeatability of the electrode along with low detection limit can be mentioned as outstanding features of this electrode. This sensor was successfully used to accurately determine of dopamine and tryptophan in ampoules and urine samples. Manuscript profile -
Open Access Article
125 - Construction of electrochemical nanosensor based on modified glassy carbon electrode with holmium oxide and carbon nanotubes for determination of efavirenz as a HIV drug
Mohammad Mehdi ForoughiSince monitoring of drug metabolism and drug quality control plays an important role in human health, development of easy, correct, and sensitive methods for the detection of active ingredients is important. In the present study, Ho2O3 nanoparticles were synthesized by MoreSince monitoring of drug metabolism and drug quality control plays an important role in human health, development of easy, correct, and sensitive methods for the detection of active ingredients is important. In the present study, Ho2O3 nanoparticles were synthesized by thermal decomposition method. The morphology and purity of synthesized nanoflowers are characterized through X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectrometer (EDX). Then, holmium oxide nanoparticles and carbon nanotubes nanocomposite used as a modifier for preparation of modified electrode. Electro-oxidation of efavirenz at the modified electrode was studied using cyclic voltammetry, chronoamperometry, differential pulse voltammetry, and electrochemical impedance spectroscopy. Under optimized conditions, the peak current of differential pulse voltammetry was increased with increasing concentration of efavirenz in the range 0.01 to 500.0 μM. The detection limit of efavirenz was obtained 4.7 nM. In addition, a modified electrode was used to determination of efavirenz in real samples. Manuscript profile -
Open Access Article
126 - تأثیر نسبت اوره به نیترات در سنتز احتراقی نانوکاتالیست CuO/ZnO/Al2O3 برای استفاده در تولید هیدروژن از متانول
رضا شکرانی محمد حقیقی حسین عجمین مظفر عبدالهیفر -
Open Access Article
127 - Toluene abatement from polluted air over CeO2-doped Pd/Al2O3-clinoptilolite nanocatalyst via low temperature catalytic oxidation
مریم حسینی محمد حقیقیTechnologies such as thermal and catalytic oxidation or biological treatment are used to remove or reduce volatile organic compounds (VOCs) which are a major part of air pollutants. Nowadays use of nanocatalysts to remove environmental pollutants are highly regarded. In MoreTechnologies such as thermal and catalytic oxidation or biological treatment are used to remove or reduce volatile organic compounds (VOCs) which are a major part of air pollutants. Nowadays use of nanocatalysts to remove environmental pollutants are highly regarded. In this work, the composite of Al2O3/CeO2/Clinoptilolite was synthesized, and then palladium active phase has been loaded on it by ultrasonic irradiation. Ultrasonic irradiation causes the profit description of active metal and improves structural properties of nanocatalysts. The purpose of using this catalyst is to take advantage of high specific surface area of alumina, acidic characteristic of clinoptilolite, and unique properties of CeO2 at the same time. Existence of CeO2 in catalyst causes increasing storage of oxygen, improving thermal and structural stability of composite and appropriate distribution of palladium metal on it. Characteristics of nanocatalysts are determined by XRD, FESEM, BET, FTIR, and EDX analyses. Gas chromatography and catalytic oxidation pilot are used for evaluation of catalytic performance toward toluene abatement from polluted air. XRD analysis results showed that the nanocatalysts have nanometer dimension crystals. BET analysis showed that the synthesized nanocatalysts have high specific surface areas. The reactor test results confirmed that the composite nanocatalysts have activity and absorption ability on toluene abatement. Manuscript profile -
Open Access Article
128 - Melamine-(H2SO4)3/Melamine-(HNO3)3 as an alternative of H2SO4/HNO3: A benign oxidizing system for the oxidation of 1,4-dihydropyridines reaction under solvent/metal-free conditions
gholamabas chahardavali mohamad mokhlesi mahsa bagheri -
Open Access Article
129 - بررسی اثر کاتالیستی نانوذرهی γ-Fe2O3 بر روی سرعت تخریب یک کمپلکس پرانرژی اکسووانادیومی (IV)
فاطمه بدلی اسماعیل عمرانی نادر نوروزی پسیان -
Open Access Article
130 - Electrochemical sensor for fentanyl determination by modified electrode with carbon nanotube and iron (III) oxide nanoparticles
مصطفی نجفی اسماعیل سهولیFentanyl is a rapid-acting, analgesic drug, and a powerful opioid which is extensively used for anesthesia and chronic pain management. In this study, an electrochemical sensor based on a nanocomposite of multi wall carbon nanotubes )MWCNTs( and iron )III( oxide )Fe2O3( MoreFentanyl is a rapid-acting, analgesic drug, and a powerful opioid which is extensively used for anesthesia and chronic pain management. In this study, an electrochemical sensor based on a nanocomposite of multi wall carbon nanotubes )MWCNTs( and iron )III( oxide )Fe2O3( nanoparticles on the surface of glassy carbon electrode )GCE( was investigated for the analysis of fentanyl drug in aqueous media. The surface of modified electrode was studied with scanning electron microscope (SEM). The electrochemical behavior of modified electrode and determination of fentanyl were performed by cyclic voltammetry and differential pulse voltammetry )DPV(, respectively. The differential pulse voltammetry (DPV) measurement at the surface of modified electrode presented the linear relation between the anodic peak current and fentanyl concentration in tow range of 0.08 to 1 and 1 to 100 μM with limits of detection (LOD) of 0.045 μM. The effect of some potential interferences of electrode response was investigated. The proposed sensor was successfully employed for the determination of fentanyl in human blood serum and urine samples Manuscript profile -
Open Access Article
131 - افزایش جذب نانو ذرات آلومینای تقویت شده در پوششهای نانوکامپوزیتی نیکلین آلومینا با استفاده از حلال آلی متانول
صادق میرزامحمدی حمید خورسند محمود محمود علی اف خضرایی -
Open Access Article
132 - A Survey of Fractal Market Hypothesis with the Markov Regime change model in the Tehran Stock Exchange
یعقوب محمودی فریدون رهنمای رودپشتی شادی شاهوردیانی حمیدرضا کردلویی مهدی معدنچی زاجThe aim of this study is to test the Fractal Market Hypothesis with the Markov regime change model in the Tehran Stock Exchange.One of the concepts in the efficient market is whether the financial time series has long-term memory and fractal properties or not. Given the MoreThe aim of this study is to test the Fractal Market Hypothesis with the Markov regime change model in the Tehran Stock Exchange.One of the concepts in the efficient market is whether the financial time series has long-term memory and fractal properties or not. Given the characteristics of the capital market, which is always faced with random shocks and leads to fluctuations in this market, it is necessary to examine the fractal characteristics of the market.In this paper, the amount of long-term memory and stability of financial time series resulting from the total stock market index for the period 2009-2019 were examined. For this purpose, first, the existence of long-term memory was examined, and then the fractal nature of the market was examined using the Harst view index. The results indicate the existence of long-term memory in this variable. In this case, with one differentiation, it becomes more differentiated, so the stock price index series in Iran has long-term memory and the effects of each shock on this variable due to its long-term memory remain for long periods. The results also showed that the overall stock market index is fractal. Manuscript profile -
Open Access Article
133 - اثر نوآوری بر توسعه صادرات خدمات فنی و مهندسی کشورهای منتخب نوظهور: درسی برای اقتصاد ایران
سید کمیل طیبی زهرا زمانی محسن نوروزی طالخونچه محمود شکری -
Open Access Article
134 - بررسی اثر اعتماد بر نوآوری درکشورهای با درآمد متوسط (با تاکید بر شعاع بیاعتمادی فوکویاما)*
عباس شاکری فرشاد مومنی تیمور محمدی حمید بهمن پور سعیده علیزاده -
Open Access Article
135 - تحلیل اثرات آزادسازی تجارت خدمات مالی بر بهرهوری کل عوامل: مطالعه موردی کشورهای منتخب در حال توسعه
علیرضا امینی مریم لطفی پور -
Open Access Article
136 - Development of blockchain technology acceptance model in the context of management accounting concepts
S. Sama Aleyasin Zahra PoorzamaniAbstract Business development based on synchronization with the world's technology is inevitable. In this direction and in this research, the adoption of the developed model of blockchain technology based on some concepts of management accounting, including cost manage MoreAbstract Business development based on synchronization with the world's technology is inevitable. In this direction and in this research, the adoption of the developed model of blockchain technology based on some concepts of management accounting, including cost management, innovation, self-efficacy of managers, strategic position and social impact has been discussed. The research method is a correlational survey among 246 accountants of Tehran Stock Exchange companies and accounting professors, which has been addressed by using structural equation modeling with the partial least squares (PLS) method. The research findings have shown that the application The reality of blockchain is affected by the willingness to use blockchain, which is also affected by the variables of understanding the ease and usefulness of blockchain use, both of which are affected by cost management, and also the understanding of ease is affected by the innovation and self-efficacy of managers and understanding Utility is influenced by social influence. In addition to enriching the theoretical research literature, the research results can be used for the development of businesses in order to determine strategies aligned with the new blockchain technology that will be used in various financial and operational dimensions and internal and external reporting Manuscript profile -
Open Access Article
137 - Analysis of factors affecting the productivity of factors of production: A case study of the pharmaceutical industry in Iran
A.R Amini سعید ZolfaghariIn this study, the effective factors on Total Factor Productivity (TFP) with the emphasis on human capital indices, technology and management among twenty ed pharmaceutical industries of Iran in the period of 2000-2007, have been studied. Total Factor Productivity is me MoreIn this study, the effective factors on Total Factor Productivity (TFP) with the emphasis on human capital indices, technology and management among twenty ed pharmaceutical industries of Iran in the period of 2000-2007, have been studied. Total Factor Productivity is measured by Divisia method, and effective factors on Total Factor Productivity have been identified with the use of Panel data technique. The effective factors on Total Factor Productivity in estimated pattern are as below: The percentage of the high-educated employed people(official education), per capita cost for educational enterprise (unofficial education), research and development capital stock, output value, cumulative number of the new products, the ratio of advertisement cost and marketing to enterprise output value and utilization rate of capacity. The studying results show significant and positive effects of the below factors: The percentage of the high-educated employed people, per capita cost for educational enterprise, research and development capital stock, output value and utilization rate of capacity to Total Factor Productivity and the negative effect of cumulative number of the new products and the ratio of advertisement cost and marketing to enterprise output value. So, technical progress by different ways (human capital progress, technology and management) has been effective to productivity improvement. Among mentioned factors, the percentage of the high-educated employed people, enterprise production index and utilization rate of capacity have had the most significant effect on total productivity. Manuscript profile -
Open Access Article
138 - A Survey of economic shocks Influences on the energy growth rate efficiency (case study: OPEC countries Oil Revenues During 2000-2011)
مهدی پدرام مهدی بصیرت مریم امیریAbstract Productivity, especially energy productivity, and its improvement is an inevitable requirement in each country. In this study, the effects of changes in energy prices, net investment and the share of value added on the growth rate of energy productivity is dis MoreAbstract Productivity, especially energy productivity, and its improvement is an inevitable requirement in each country. In this study, the effects of changes in energy prices, net investment and the share of value added on the growth rate of energy productivity is discussed. As well as, by using Solow–Swan growth model, the energy productivity convergence in the period 2000-2011 in a selection of OPEC countries is examined. For the data analysis, panel data is used. Based on results, factors affecting the growth rate of energy productivity used in the research have significant effect on the growth rate of energy productivity. In addition, we found that those countries with a lower induced consumption, they have higher growth rate in the long-term consumption. Manuscript profile -
Open Access Article
139 - Factors Affecting the Internationalization of Banks
Mozhdeh Nilchian Mohammad Reza KabaranzadGhadim Jalal HaghighatMonfared Jamshid EdalatianShahriyariAbstractBanks, as the main sources of liquidity for manufacturing and service enterprises, have a very important role in the economic growth and development of a country. In addition, the existence of competitive markets increases the importance of this issue. One way t MoreAbstractBanks, as the main sources of liquidity for manufacturing and service enterprises, have a very important role in the economic growth and development of a country. In addition, the existence of competitive markets increases the importance of this issue. One way to gain competitive advantage, is internationalization, which many banks around the world have taken this step. The internationalization of banks is not a new phenomenon. Throughout the history of banking, internationalization has always been tied to banking. Today, banking services have become so diverse that many banks prefer to remove the old banking terms from their advertising programs and emphasize on the more prominent role of financial services firms _innovative, dynamic and customer-oriented service . The purpose of this article is to explain the factors affecting the internationalization of banks. The method of this research is theme analysis. In this regard, the study of theoretical literature has been used as a source of research. In order to complete and confirm the obtained themes, interviews with experts and then a comparative study have been conducted. Finally, 12 categories and 59 themes were extracted from the studied sources. Manuscript profile -
Open Access Article
140 - Designing an entrepreneurial model based on enablers for Iran
Dawod Mukhtarpour Fardin ShurajAbstractThe purpose of this study was to design an entrepreneurial empowerment model in Iran. In this study, a combined method (qualitative and quantitative) was used. The statistical sample of the study included 33 entrepreneurship experts, 110 micro and macro business MoreAbstractThe purpose of this study was to design an entrepreneurial empowerment model in Iran. In this study, a combined method (qualitative and quantitative) was used. The statistical sample of the study included 33 entrepreneurship experts, 110 micro and macro business managers and 163 entrepreneurship students. The tools of this research were Delphi questionnaires, interpretive structural modeling and entrepreneurial performance. Validation of questionnaires using expert opinion and validity using factor analysis. The reliability of the questionnaires was also confirmed by Cronbach's alpha method. Delphi method and interpretive structural modeling were used to identify entrepreneurial enablers and to examine the relationship between them, and structural equation modeling method was used to test research hypotheses. According to the results, a total of 9 empowerment (cultural factors, economic factors, information, political factors, contextual factors, structural factors, institutional factors, personality and individual characteristics, and the use of the global community) and 52 identifications. Were. The final results of ISM showed that the underlying factors and the benefit of globalization are at level 1 and the cultural factors are at level 6. Also, the results of sub-hypotheses showed that all entrepreneurial enablers affect entrepreneurial performance. Manuscript profile -
Open Access Article
141 - The Effects of Knowledge-Based Economy Index on the Economic Growth of Islamic Countries (Martin Barrow Test Model)
مقداد محمودی مرجان دامن کشیده شهریار نصابیانKnowledge is the source of economic growth and productivity growth, and its production and accumulation is at the top of the list of countries. Meanwhile, knowledge-based economics has become doubly important due to its emphasis on the knowledge component in economic is MoreKnowledge is the source of economic growth and productivity growth, and its production and accumulation is at the top of the list of countries. Meanwhile, knowledge-based economics has become doubly important due to its emphasis on the knowledge component in economic issues. In this article, an attempt has been made; By theoretically explaining and designing a model and using econometric methods to investigate the impact of knowledge-based economy on the economic growth of Islamic countries (Barrow Salai Martin model test) so that the empirical effect of this relationship can be analyzed. . The statistical population of this study includes Islamic and multi-religious countries (a large part of the Muslim population). Based on the availability of information from the studied countries, including; Azerbaijan, Jordan, Uzbekistan, Indonesia, Iran, Pakistan, Tajikistan, Turkey, Tunisia, Sudan, Kyrgyzstan, Kazakhstan, Lebanon, Egypt, India. The scope of the research is from 2009 to 2019. To collect the required statistics and quantitative information, statistical tables and global databases and the International Monetary Fund and the economical model of structural autoregression panel have been used. Using Fisher test and Johansen co-integration test, static and long-run relationships of variables were examined. It was shown that all variables are at zero level and based on the results of effect statistics and maximum eigenvalue, there are five long-term relationships at 0.95 level between variables. Then, using shock analysis and analysis of variance, it was shown that the knowledge-based economy index affects the economic growth of Islamic countries. Manuscript profile -
Open Access Article
142 - Designing and explaining the indigenous model of empowerment in business-oriented non-governmental organizations
Norouz Hajibabaei Ali Akbar RezaeAbstract Non-governmental organizations (NGOs) as community-oriented structures with the aim of benefiting the people of the society and by creating business spaces by the government and removing the obstacles that existed before, are developing their activities in the MoreAbstract Non-governmental organizations (NGOs) as community-oriented structures with the aim of benefiting the people of the society and by creating business spaces by the government and removing the obstacles that existed before, are developing their activities in the field of commercial and economic activities. The aim of the present study was to provide a local model of empowering non-governmental organizations with emphasis on key business factors. In order to conduct this research, the researcher used a mixed method (qualitative-quantitative).in the qualitative part based on the data method of the research paradigm model including causal conditions (management and macro-organizational factors, social and support factors, marketing and information); contextual conditions (society-oriented areas, business-oriented areas); Intervening conditions (intra-organizational factors, extra-organizational factors, electronic empowerment of employees, electronic platform); and strategies (commercial development of cements, media actions, support, fundamentals); It was identified and classified. In the quantitative part, through exploratory factor analysis (EFA), the indicators of the obtained categories were tested and the factor loadings of all indicators were estimated, which showed the approval of those indicators and categories. . Also, the researcher, based on the outputs of the qualitative section and the EFA test, designed assumptions (8 hypotheses) and measured the claimed relationships through the structural equation test in the Smart PLS software.In the end, based on path coefficients (beta) and significance coefficients (Z), all the claimed hypotheses were confirmed Manuscript profile -
Open Access Article
143 - Developing Green Banking Model Based on Innovation Management Components for Sustainable Competitive Advantage
فاطمه حجاران رضا رادفر علی دیواندری داوود فداییAbstract By promoting a sustainable environment and investing in social responsibility,the banking industry can provide sustainable development and benefit from it. The purpose of this study is to provide a green banking model based on innovation management to gain sus MoreAbstract By promoting a sustainable environment and investing in social responsibility,the banking industry can provide sustainable development and benefit from it. The purpose of this study is to provide a green banking model based on innovation management to gain sustainable competitive advantage in this industry. In this research, based on the effective components of the Green Banking Model (Hajjaran et al.,1397),a green banking model was presented and six standard questionnaires were used to assess the fit of the model and confirm the five-dimensional hypothesis of the research.Using an Adaptive Neuro-Fuzzy Inference System. The analyzes were performed on the data obtained from 310 questionnaires by a random sample from senior managers, middle managers and employees of the innovation,information technology sector of the selected banking industry. After implementing the model, the results show that increasing the component of innovation management will increase the amount of sustainable competitive advantage. Increasing the variable of innovation management as well as increasing green banking has increased the competitive advantage of sustainability. Also, increasing the green bank rules and regulations by increasing the green bank variable has increased the competitive advantage of the bank. Increasing the amount of Green Bank component and mediating senior management's environmental concerns maximizes sustainable competitive advantage and increasing innovation management and increasing environmental concerns of senior management will increase the sustainable competitive advantage. Manuscript profile -
Open Access Article
144 - The Impact of Entrepreneurship Financing Methods on Collective Participation in Knowledge-Based Businesses
بهمن اسکندری حسین وظیفه دوست پریوش جعفری مرتضی موسی خانیThe trend of increasing developments in today's business environment, these types of companies, whose technological capabilities, skilled workforce and advanced management are their most important features, are part of global networks and production chains. Data, theref MoreThe trend of increasing developments in today's business environment, these types of companies, whose technological capabilities, skilled workforce and advanced management are their most important features, are part of global networks and production chains. Data, therefore, seems to be the key to the economic development of the next decade, the development of knowledge-based companies. Therefore, the main purpose of this article is to investigate the effect of entrepreneurial financing methods on collective participation in knowledge-based businesses. The research method of the present article is practical and in terms of research method, data collection is by survey. The statistical population of this article is the officials and managers of knowledge-based companies, the elites in the executive work of knowledge-based companies, and the professors of the universities of the country. Due to the large population, the sample size was selected non-randomly and purposefully. In this article, among the officials and managers of knowledge-based companies, the elites are active in the executive work of knowledge-based companies, and university professors are 50 people by non-random and purposeful sampling method as the sample size of experts. Was determined. The data collection tool in this research is a researcher-made questionnaire and questionnaire that using the content validity ratio index, the validity of the questionnaire questions was examined and it was shown that the validity of the questionnaire questions is confirmed. Then, the reliability of the questionnaires was assessed using Cronbach's alpha coefficient. The value of Cronbach's alpha coefficient was reported to be 0.851%, which indicates that the questionnaire used has the necessary reliability (reliability). Then, using SPSS 24 software, the collected data were analyzed in two stages: descriptive and inferential statistics. The results obtained in this paper using multivariate linear regression equation show the methods of mass financing (method of receiving facilities, method of forming cooperatives, method of creating a plan as equity, method of dissemination). Participation bonds, the method of creating investment companies, the method of participating in the stock market, the method of attracting capital through angels, the method of risky investment funds) on and meeting the financial needs related to the company's activities. Knowledge-based activities have a positive and significant effect. And expand knowledge-based businesses. Therefore, it is suggested that according to the results of research in Iran, financing has a long history and it is possible to revive the cultures of the past today by using the direction of collective financing in order to develop entrepreneurship, including crowdfunding. (Local deciduous trees), using the family financing method and using Qarzah al-Hasna loans in the neighborhood. Manuscript profile -
Open Access Article
145 - A Grounded Theory Exploration of Pattern of Home-Buying in Luxury Residential Area of Tehran in The Residential Sector of Construction Industry
ali asghar velayati Kambyz Heydarzadeh Mohammad Ali AbdulvandAbstract This research has been used to get to know the pattern of housing purchase and through qualitative research with a contextual study approach to achieve the goal of the research. Sampling in the study was done by snowball method and data collection reached satu MoreAbstract This research has been used to get to know the pattern of housing purchase and through qualitative research with a contextual study approach to achieve the goal of the research. Sampling in the study was done by snowball method and data collection reached saturation by conducting 14 interviews. In order to collect information, buyers looking for a house, consumers living less than 6 months, builders and investors, and architects and designers were interviewed. The results showed that the pattern of purchasing luxury housing from the point of view of investors and builders includes 11 categories (determining the construction site, construction process, investment return, business partners, construction cost, obtaining municipal permit, construction time, economic period of construction and instrument, effective factors in persuasion to buy, characteristics of buyers, buying and selling process in the region); Architects and designers, 4 categories (expectations of the buyer, architect's design style, characteristics of construction in the region, factors influencing purchase); Consumers living less than 6 months, 3 categories (satisfaction with construction, making changes in the house, buyer's expectations); Buyers looking for a house have 4 categories (buyer expectations, buying time, how to choose a house, making changes to the house). Manuscript profile -
Open Access Article
146 - Effect of Different amounts of Urea Fertilizer on Yield and Nitrate Accumulation in Edible Parts of Basil (Ocimum basilicum L.)
Gholamreza Moafpourian mohammad saeed tadayonAbstractIn order to survey on the effect of urea fertilizer on yield and nitrate accumulation in edible parts of basil, an experiment was conducted in Fars agricultural and natural resource research and educational center as randomized complete blocks design with 4 repl MoreAbstractIn order to survey on the effect of urea fertilizer on yield and nitrate accumulation in edible parts of basil, an experiment was conducted in Fars agricultural and natural resource research and educational center as randomized complete blocks design with 4 replication in 2014. Experimental treatments contain: without nitrogen consumption (control, N0), consuming 50 (N50), 100 (N100), 150 (N150) and 200 (N200) kg N.ha-1 from urea fertilizer. The results showed that the effects of urea on nitrate accumulation in basil were significant. A highly significant difference between nitrate accumulation in the morning and in the evening harvesting time of basil leaf blade samples were observed, so that the amount of nitrate in the morning harvested samples were higher than the same sample in the evening. Application of 50 kg N.ha-1 (110 kg urea fertilizer) was showed the highest crop yield equal to 0.95 kg.ha-1 with lover nitrate accumulation as amount as 177.8 mg.kg-1 in dry weight. Manuscript profile -
Open Access Article
147 - اثرات نیترات روی Zn(NO3)2 بر بافت کبد ماهی فیتوفاگ (Hypophthalmichthys molitrix)
علی حلاجیان ایوب یوسفی جوردهی رضوان اله کاظمی سورنا عبدالی مهزاد شکوری -
Open Access Article
148 - MCM-41 functionalized sulfonic acid catalyzed one-pot synthesis of 1,8- dioxo-octahydroxanthenes
Gholam Hossein Mahdavinia Mohammad Mehdi Ghanbari Hamid Sepehrian Fatemeh Kooti -
Open Access Article
149 - Degradation of some dyes using nanosized CeCuO3 photocatalyst: synthesis and characterization
Indu Bhati Anil Kumar Suresh C. Ameta -
Open Access Article
150 - Physiological Analysis of Silver Nanoparticles and AgNO3 Effect to Brassica napus L.
Mehrzad Sarabi Akbar Safipour Afshar Homa Mahmoodzadeh -
Open Access Article
151 - Evaluation of Physicochemical Methods for Dormancy Breakage and Germination of Datura stramonium Seeds
Leila Mousavi Wan Rosli Wan Ishak Mohammad Mousavi -
Open Access Article
152 - Effect of Nano- sized Fe2O3 on Microstructure and Hydration Resistance of MgO-CaO Refracrories
سلمان قاسمی کهریزسنگی علی نعمتی عزیز شهرکیMagnesia–Doloma refractories are considered as a mixed product of alkali products i.e. sintered (fused) magnesia and doloma in which 50-80wt% magnesia is contained. These refractories enjoy some advantages such as high slag resistance corrosion, high-temperature p MoreMagnesia–Doloma refractories are considered as a mixed product of alkali products i.e. sintered (fused) magnesia and doloma in which 50-80wt% magnesia is contained. These refractories enjoy some advantages such as high slag resistance corrosion, high-temperature performance, potential for production of pure molten iron and low cost due to abundance of magnesia and doloma resources in access. However, poor resistance of hydration can be cited that may constrain the amount of this refractory in various industrial applications. in this work the effect of nano-sized Fe2O3 on microstructure and hydration resistance of MgO-CaO refractories with 35wt.% CaO were investigated. MgO-CaO refractories with 35wt.% CaO content were prepared by using dolomite and magnesite calcined as starting material and nano-sized Fe2O3 as additive. Samples were uniaxially pressed in to briquettes at a pressure of 90 MPa. Briquettes after drying at 110 for 24 hr were sintered at 1650 for 3 hr. Hydration resistance was measured at 25oC in 95% relative humidity through the weight gain after 72 hr. according to the results, with the addition of nano-sized Fe2O3, bulk density and hydration resistance of the samples increase while apparent porosity decreased. Densification of MgO-CaO refractories was promoted with increase of nano-sized Fe2O3 content. nano- sized Fe2O3 addition lead to formation low melting phases such as C2F(2CaO.Fe2O3), CF(CaO.Fe2O3) and C3A(3CaO.Al2O3). Formation of this low melting point surrounding the CaO and MgO grain and grain boundaries and promoted densification of MgO-CaO refractories. The nature of nano-sized Fe2O3 promoting densification is promoting the liquid phase sintering. Manuscript profile -
Open Access Article
153 - Investigation of influences of mechanical activation and heating rate on nanostructured NiAl-Al2O3 composites formation by combustion synthesis
Maryam BeyhaghiInvestigation of influences of mechanical activation and heating rate on nanostructured NiAl-Al2O3 composites formation by combustion synthesis Abstract The paper investigates influence of mechanical activation and heating rate (20°C/min and 40°C/min) on react MoreInvestigation of influences of mechanical activation and heating rate on nanostructured NiAl-Al2O3 composites formation by combustion synthesis Abstract The paper investigates influence of mechanical activation and heating rate (20°C/min and 40°C/min) on reactions occurrence in combustion synthesis process of nanostructured NiAl-Al2O3 composites by heating of Ni, NiO and Al powder mixture from 20°C to 1300°C. To study reactions occurrence, differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM) were utilized. By heating the sample without mechanical activation, exothermic reaction of NiO reduction by Al and Ni-Al intermetallic phases production happened in the presence of molten Al; while mechanical activation caused occurrence of these reactions at lower temperatures and separately. By decrement in heating rate, reactions happened separately at lower temperatures. A mechanism for reactions occurrence during heating of mechanically activated sample is proposed. Keywords Composite, Nanostructured Materials, Combustion Synthesis, NiAl, Al2O3, Mechanical Activation, Mechanical Milling, Heating Rate Manuscript profile -
Open Access Article
154 - Study of microstructure and tribological properties of NiCrAlY coatings reinforced with Al2O3 particles
رئوف رحیم زاده علی شفیعی کامران امینیThis study examines the influence of NiCrAlY powder with and without Al2O3 Reinforcement doses of 5, 10 and 20% by weight, produced by plasma spraying method have been investigated. In order to prepare a composite powder, shaft ball mill blender for an hour for each pow MoreThis study examines the influence of NiCrAlY powder with and without Al2O3 Reinforcement doses of 5, 10 and 20% by weight, produced by plasma spraying method have been investigated. In order to prepare a composite powder, shaft ball mill blender for an hour for each powder were used. The NiCrAlY powder and powder composite NiCrAlY / Al2O3 with values of 5%, 10%, 20% Al2O3 were coated on Inconel 718 substrates by plasma thermal spraying. In order to evaluate the microstructure, morphological and thermal stability evolutions of the powders and coatings were investigated using X-ray diffraction, scanning electron microscopy with energy dispersive spectroscopy and optical microscopy. Vickers micro and macro hardness test was used to evaluate the hardness..The pin-on -disk test with 5 N was used to cold resistance assessment of coatings. Findings showed that the composite coatings NiCrAlY/Al2O3 because of the size and morphology of different ingredients, has a higher porosity, but in terms of mechanical properties due to reinforced phase, improvements in composite coatings were observed. Evaluate the wear behavior of Al2O3 10% coatings showed that 37.7× 10-6(mm3/Nm)abrasion resistance better than other coatings, especially coatings from powders without reinforcement 114.6× 10-6 (mm3/Nm) abrasion resistance had. Manuscript profile -
Open Access Article
155 - Fabrication of Al2O3/SiC Nanoparticles from the Rice Hush Ash via Self-Propagation High-Temperature Synthesis and Ball Milling
قاسم دینی Morteza HoseiniIn this study, silica obtained from the rice hush was used to synthesis of Al2O3/SiC nanoparticles. The rice husk is an agricultural residue abundantly available in rice producing countries such as Iran. For this reason, the ash obtained from the burning of the rice hus MoreIn this study, silica obtained from the rice hush was used to synthesis of Al2O3/SiC nanoparticles. The rice husk is an agricultural residue abundantly available in rice producing countries such as Iran. For this reason, the ash obtained from the burning of the rice hush which contains more than 93% silica, and aluminum and carbon powders with the molar ratios of 3:4:6 were mixed and then pressed into pellets by using a cylindrical die under a pressure 50MPa. In order to conduct the Self-Propagation High-Temperature Synthesis (SHS), the produced pellets were placed in an electrical furnace at 850oC under the argon gas atmosphere. Then, a planetary ball-milling for 4, 8, 12, 16 and 24h was used to decrease the particle size of the synthesized composite. The results of XRF, XRD, SEM and DLS investigations shown that the rice hush ash can be used to fabricate Al2O3/SiC nanoparticles via SHS and ball-milling and the size of synthesized particles after ball milling for 4-24h is in the range of 870-65nm. Manuscript profile -
Open Access Article
156 - Investigation of bonding mechanism and effects of brazing time on microstructure and bond strength of Ti6Al4V/Al2O3 Couple
محمد حسین مومن پور محمود فاضل نجف آبادیIn this study, using Ag-Cu brazing metal alloy, effects of brazing time on microstructure and strength of Al2O3 / Ti6Al4V joints were investigated. Therefore, ceramic/metal couple brazed by electrical furnace. Then, brazed specimens were examined by scanning electron mi MoreIn this study, using Ag-Cu brazing metal alloy, effects of brazing time on microstructure and strength of Al2O3 / Ti6Al4V joints were investigated. Therefore, ceramic/metal couple brazed by electrical furnace. Then, brazed specimens were examined by scanning electron microscope and x-ray diffraction tests. Several phases observed at the interface area and EDS analysis were recognized titanium, copper, silver, aluminum, vanadium and oxygen in this phases. With more study using x-ray diffraction patterns and phases diagrams some intermetallic compounds identified. This compounds were Ti-Cu intermetallices near to Ti6Al4V side and reactive layer of Cu2O +CuAlO2 near to Al2O3 ceramic side. Also, microstructural surveys revealed the narrow reaction layer and a little intermetallic compounds in specimen brazed for 10 minutes. With increasing brazing time, reaction layers grossed rapidly. This chemical variation made dimensional changes at metal/ceramic interface. Therefore, some crakes observed in specimen brazed for 25 minutes. Maximum of shear strength equal 295 Mpa measured in specimen brazed for 15 minutes. Manuscript profile -
Open Access Article
157 - Synthesis and study of the highly effective catalytic activity of the Pt-LaFeO3 nanoparticles supported on polyaniline-chitosan for methanol electro-oxidation
Somaye Khammarnia Jilla Saffari Mehri-Saddat Ekrami-Kakhki Alireza AkbariIn this study, polyaniline (PA) accompanied by chitosan (CH) were used as effective and proper support for nanoparticles. LaFeO3 (LFO) nanoparticles were synthesized by sol-gel method and characterized by X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy MoreIn this study, polyaniline (PA) accompanied by chitosan (CH) were used as effective and proper support for nanoparticles. LaFeO3 (LFO) nanoparticles were synthesized by sol-gel method and characterized by X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDS) techniques. Pt-LFO/PA-CH nanocatalyst was prepared by chemical reduction of H2PtCl6 by NaBH4 on PA-CH support in the presence of LFO nanoparticles. The morphology and distribution of nanoparticles were determined by transmission electron microscopy (TEM) images. The catalytic activity of Pt-LFO/PA-CH nanocatalyst for methanol electro-oxidation was studied through cyclic voltammetry and electrochemical impedance spectroscopy. The effects of some experimental factors for methanol electro-oxidation, such as methanol concentration, scan rate and temperature were studied on the prepared catalyst. The activation energy of the anodic peak of methanol oxidation at Pt-LFO/PA-CH was also calculated and its value was obtained 14.17 kJ mol-1. The catalytic activity of Pt-LFO/PA-CH catalyst for methanol electro-oxidation was compared with Pt/PA-CH catalyst. The electrochemically active surface area of Pt-LFO/PA-CH catalyst (77.46 m2g-1Pt) was obtained more than Pt/PA-CH (54.69 m2g-1Pt). At methanol concentration of 1.76 M, the anodic peak current density of methanol oxidation at Pt-LFO/PA-CH (377.58 mA cm-2) was obtained more than Pt/PA-CH catalyst (203.67 mA cm-2). Higher electrochemically active surface area and current density of Pt-LFO/PA-CH for methanol oxidation indicating very improved catalytic activity of Pt-LFO/PA-CH for methanol electro-oxidation. Thus, the prepared catalyst can be utilized as effective catalyst for methanol electro-oxidation in direct methanol fuel cells. Manuscript profile -
Open Access Article
158 - Improvement in fracture toughness and wear resistance of plasma-sprayed chromia coating by addition of YSZ nanoparticles
Seyed Mahdi Hashemi Nader Parvin Zia ValefiIn the present research, wear behavior of Cr2O3-20YSZ (CZ) and Cr2O3 (C) coatings created using atmospheric plasma spray (APS) process was evaluated. For this purpose, Cr2O3 and YSZ nanopowders were produced after milling for 5h in a high-energy ball mill and subsequent MoreIn the present research, wear behavior of Cr2O3-20YSZ (CZ) and Cr2O3 (C) coatings created using atmospheric plasma spray (APS) process was evaluated. For this purpose, Cr2O3 and YSZ nanopowders were produced after milling for 5h in a high-energy ball mill and subsequently plasma spraying of the agglomerated powders was carried out on 304L substrates. Microstructural characterization of these ceramic coatings was performed using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) equipped with energy dispersive X-ray spectroscopy (EDS) and optical microscope. Mechanical tests including adhesive strength, fracture toughness, and micro-hardness were used so as to explain the coatings wear behavior. Sliding wear test was conducted using a ball-on-disk configuration against an alumina counterpart at room temperature. Addition of YSZ particles to the Cr2O3 matrix due to the phase transformation toughening mechanism associated with tetragonal zirconia resulted in an increase in the fracture toughness while decreased the micro-hardness. It was found that the composite coatings had the friction coefficients of the proper order of 0.11-0.15. The CZ composite coating compared to the C coating showed the higher wear resistance so that the weight loss was obtained as 11 and 31 mg, respectively. Observation of the wear tracks of the coatings indicated that the lower wear rate of the CZ coating was attributed to its higher toughness and therefore filling the pores due to the higher plastic deformation of its wear debris. Manuscript profile -
Open Access Article
159 - Studying the effect of Bi2O3 addition before and after calcination on electrical properties of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 piezoceramics
Raziye Hayati Mohammad Ali BahrevarLead-free Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) compounds were synthesized using the conventional solid state ceramic processing and the effects of Bi2O3 addition on density and electrical properties was investigated. In order to decrease the loss of Bi at high processing tem MoreLead-free Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) compounds were synthesized using the conventional solid state ceramic processing and the effects of Bi2O3 addition on density and electrical properties was investigated. In order to decrease the loss of Bi at high processing temperatures of BCZT, two methods were employed to introduce bismuth oxide; one, in which Bi2O3 was mixed with the raw materials and the composition was balanced for A-site substitution before calcination and the other where Bi2O3 (0.1mol%) was added after calcination, milled, compacted, and sintered (1350-1500 °C) with no compensation at A or B-sites. Phase and microstructure analyses were carried out using x-ray diffractometry and scanning electron microscopy. The temperature and frequency dependence of dielectric properties showed a normal ferroelectric behavior. Our results revealed that Bi incorporation based on the second method was more effective in increasing the density and improving the electrical properties. The highest direct and converse piezoelectric constants, planar coupling factor, and remnant polarization obtained were d33=325 pC/m, d33*=675 pm/V (d33*/d33=2.1), kp=0.42, and Pr=10.4 µC/cm2, respectively, for the BCZT sample with 0.1 mol% Bi2O3, as sintering aid, sintered at 1350 °C, which were attributed to the larger grains and higher density of the corresponding composition. Manuscript profile -
Open Access Article
160 - The effect of Al2O3 Nano-particles coated with manganese oxide on the microstructure and mechanical properties of low carbon steel using GMAW process
farzad pahnaneh masood aghakhani farid naeimi , Moeen MansoubiThis paper reports an investigation carried out to determine the effect of aluminum oxide Nano-particles coated with manganese on the microstructure and mechanical properties of single-pass butt joint of low carbon steel plates of 6.0 mm thicknesses using gas metal arc MoreThis paper reports an investigation carried out to determine the effect of aluminum oxide Nano-particles coated with manganese on the microstructure and mechanical properties of single-pass butt joint of low carbon steel plates of 6.0 mm thicknesses using gas metal arc welding process. After selecting appropriate welding parameters and adding 0.25 gr and 0.5 gr of Nano-particles into the joint line and carrying out the welding, the samples were prepared for micro hardness and tensile tests. Furthermore, the sample with optimum Nano-particles having the highest ultimate tensile strength and without having any visible and metallurgical defects in the microstructure was selected for further investigation. Subsequently, microstructures of the weld without and with optimum Nano-particles were studied using optical microscopy and scanning electron microscopy (SEM) and the fractured surface of the weld obtained from tensile testing was investigated for the samples without Nano particles and the optimum sample with Nano materials were studied. The results show that Nano-particles added to the weld pool penetrated into the weld zone and helped in formation of acicular ferrite in the microstructure. Based on the results obtained, ultimate tensile strength and percentage of elongation of samples without Nano-particles and with optimum Nano-particles were increased from 387 MPa and 6.8% to 408 MPa and 13.6%, respectively. In addition, the average hardness of the weld metal without Nano-particles and with optimum Nano-particles were increased from 158 VHN to 172 VHN respectively Manuscript profile -
Open Access Article
161 - Characterization of Electro Synthesized Perovskites Structured Ybmno3 Nanoparticles
hamid mohmmad shiri Saab Sadeghi Reza Safari Ali Ehsani Hamid Reza Ebrahimi hamid hadiProsciuttoes are compounds that have the general formula ABO3, such as YbMnO3. In this research, YbMnO3 nanostructure has been synthesized by electrochemical deposition technique which is the green simple and new method. Then, XRD, DSC, SEM and EDS characterization test MoreProsciuttoes are compounds that have the general formula ABO3, such as YbMnO3. In this research, YbMnO3 nanostructure has been synthesized by electrochemical deposition technique which is the green simple and new method. Then, XRD, DSC, SEM and EDS characterization tests were performed on the synthetic sample and the obtained results were analyzed. In addition, the morphological and structural properties of the synthetic nanomaterial showed that the main product was YbMnO3, with a nanoscale agglomerated structure with a particle size estimated at 35.5 nm. Also, some mechanical quantities, such as stress, strain, lattice constants and particle size of the synthetic perovskite compound, are calculated using the Scherer equation and the Williamson-Hall method, and the results were obtained with the results (values) obtained from the XRD spectra. And SEM were compared. It is predicted that the result of this research can open new horizons in the low-cost synthesis of eco-friendly (green Chemistry) nanomaterials and nanoparticles. Manuscript profile -
Open Access Article
162 - The effect of (nano, mesoporous) alumina and their composite with MWCNT additives on microstructure, physical and mechanical properties of alumina-C refractories
Amirabbas NourbakhshAlumina-C refractories have been widely used as slide gate submerged entry nozzles and mono block stoppers in steelmaking due to their unique physical and mechanical properties.In this research,the effect of different source of alumina having unlike surface areas(nano a MoreAlumina-C refractories have been widely used as slide gate submerged entry nozzles and mono block stoppers in steelmaking due to their unique physical and mechanical properties.In this research,the effect of different source of alumina having unlike surface areas(nano and mesoporous)and MWCNT additives on physical and mechanical properties of Al2O3-C refractories was investigated.In this regard mesoporous alumina was synthesized by sol-gel method.Then the mesoporous and nano alumina precursors were added to the functionalized MWCNT.In order to better distribution of 0.5-1.5 wt% nano additives the additives were firstly added to the matrix and then mixed with coarse particles of Al2O3-C refractories. Following in order to physical and mechanical properties investigation, all samples pressed under 150Mpa pressure by uniaxial then pressed and tempered at 200 ℃ for 6h, and afterward fired under coke atmosphere at 1450℃ for 2 h.The bulk density apparent porosity and cold crushing strength were determined according to their respective standard. Moreover their microstructure and phase analysis was investigated by XRD and SEM.The results confirmed that the sample containing1wt% nano Al2O3-MWCNT composite showed the highest CCS of about 137 Mpa,and sample with1.5 wt% mesoporous Al2O3 showed the lowest CCS (94 Mpa).The improvement of mechanical properties could be related to the higher SiC formation in the presence of nano Al2O3- MWCNT by vapor- solid mechanism. The main reason for decreasing mechanical properties in the presence of mesoporous additives could be attributed to limiting of gas-solid reaction due to trap of gases and therefore lower formation of SiC whiskers through the matrix. Manuscript profile -
Open Access Article
163 - The effect of Al2O3 Micro Powder added in Dielectric on Electro Discharge Machining Performance of Ti6Al4V
Mojtaba Esmailian -
Open Access Article
164 - Enhancement Performance New Generation of CPU Cooling System Using Water-AL2O3 Nanofluid
M. Aliabadi A.R. Shateri -
Open Access Article
165 - Assessment of the different treatments effect on seed dormancy break in Ferula gummosa Boiss
Soudabeh Ahooyi Alireza Sohani Darban Mohsen Nabavi KalatFerula gummosa owned umbelliferus of medicinal plants, industrial and pasture is important. One of the major problems in the field of these domestication species is the presence of seed dormancy. Therefore, it seems absolutely necessary to evaluation of break seed dorma MoreFerula gummosa owned umbelliferus of medicinal plants, industrial and pasture is important. One of the major problems in the field of these domestication species is the presence of seed dormancy. Therefore, it seems absolutely necessary to evaluation of break seed dormancy in this plant. Aim of this study is dormancy breaking, germination and evaluating the best treatment for the elimination of Ferula gummosa seed dormancy. For this purpose, an experiment was carried out as factorial in based on completely randomized design with three replications in 1392, that it was conducted in the laboratory of Islamic Azad University of Mashhad. To perform the experiment, Ferula gummosa seed were collected from Binalud Highlands city of Nishabur in August 1391. The experiments included cold stratification at four levels (30, 45, 60 and 70 days) with treatment gibberellic acid at four levels (control, 250 ppm, 500 ppm and 1000 ppm) and also cold stratification at four levels (30, 45, 60 and 70 days) with treatment kno3 at four levels (control, 1%, 2% and 3%). The final assessment of germination, after 3 weeks of maintenance conducted on Germinator. The results of the first experiment showed that cold stratification and gibberellic acid had a significant positive effect on germination of Ferula gummosa and the maximum percentage (67.5 %) and rate of germination (2.45 seed/day) were obtained by treatment of 60 days stratification. The lowest percentage and rate of germination was gained by treatment of 30 days stratification. Application of 250 ppm gibberellic acid had the highest germination rate (1.94 seed/day) among different levels of gibberellic acid. The results of the second experiment illustrated that cold stratification and kno3 caused to improve germination properties and the highest level of kno3 caused to gain the highest percentage (51.66 %) and rate of germination (1.31 seed/day). No-application of kno3 had the lowest amount of these properties (percentage and rate germination were 31.66% and 0.68 seed/day, respectively). Manuscript profile -
Open Access Article
166 - Evaluation of new integrated photo-catalyst adsorbent for removal of haloacetonitriles from water
Ehsan Ghorban Nezhad Behrooz Mahmoodzadeh VaziriIn this study, a new integrated photo-catalyst adsorbent is prepared to degrade the harmful organic compounds of water in the presence of light irradiation. A citric acid assisted sol-gel method was employed to perovskite MoTiO3/GO nanocomposites preparation. The charac MoreIn this study, a new integrated photo-catalyst adsorbent is prepared to degrade the harmful organic compounds of water in the presence of light irradiation. A citric acid assisted sol-gel method was employed to perovskite MoTiO3/GO nanocomposites preparation. The characteristics of the samples were performed by SEM, BET, FTIR and XRD analysis. Results showed that the synthesized MoTiO3 nanoparticles with average size of 26 nm were successfully deposited onto the graphene oxide (GO) adsorbent. Increasing the content of GO up to 1.5 wt.% in nanocomposite has an increasing effect on specific surface area. MoTiO3/GO photocatalytic activity was investigated by the haloacetonitriles (HANs) decomposition under UV irradiation. The MoTiO3/(GO,1.5wt.%) nanocomposite displayed significant HANs removal capability up to 98.24% and excellent photocatalytic activity after 120 minutes of UV irradiation. Therefore, it can be said that the MoTiO3/GO is a potential photo-catalyst for effective wastewater treatment of disinfection by-products (DBPs) and future industrial applications. Manuscript profile