فهرست مقالات Batch photo reactor

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  1 - Using ZnO based on Bentonite as a nano photo catalyst for degradation of Acid Red 114 in synthetic wastewater
  Aref Shokri Reza Hekmatshoar Ahmadreza Yari
  10.22034/jna.2020.1898029.1205
  In this project, the removal of Acid Red 114(AR 114) that is a mono Azoo dye with global usage in aqueous environment was explored by nano photo catalytic process. The ZnO was supported on Bentonite and used at suspension state in a batch photo reactor. The catalyst was چکیده کامل

  In this project, the removal of Acid Red 114(AR 114) that is a mono Azoo dye with global usage in aqueous environment was explored by nano photo catalytic process. The ZnO was supported on Bentonite and used at suspension state in a batch photo reactor. The catalyst was synthesized by co precipitation methods and characterized by Scanning Electronic Microscopy (SEM), X-Ray Diffraction (XRD), and Fourier Transform Infrared (FT-IR) spectra. The effect of operational variables including pH, initial concentration of Acid red 114, amounts of catalysts and temperature were investigated on the removal efficiency of AR114. The optimum conditions were achieved at 1g/l of catalyst, 30 mg/l of AR 114, pH of 9 and temperature at 35℃. The removal of AR 114 in UV, UV/ZnO, and UV/ZnO/Bentonite process were 26.5, 55 and 92.5% after 2 h of treatment, respectively. The photo catalytic degradation mechanism was described and the efficiency of the process increased considerably by modification of photo catalyst. پرونده مقاله
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  2 - Degradation of Chloridazon in an aqueous environment using TiO2/Ag as a synthesized nano photocatalyst using central composite design
  Maysam Abdolkarimi Fariba Soleimani Aref Shokri
  10.22034/jna.2022.1934052.1262
  In this study, TiO2/Ag nano photocatalyst was synthesized by sol-gel method and used for degradation of Chloridazon (CLZ) in aqueous media. The prepared catalyst was characterized using powder X-ray diffractometry (XRD), Fourier transform infra-red (FTIR), and field emi چکیده کامل

  In this study, TiO2/Ag nano photocatalyst was synthesized by sol-gel method and used for degradation of Chloridazon (CLZ) in aqueous media. The prepared catalyst was characterized using powder X-ray diffractometry (XRD), Fourier transform infra-red (FTIR), and field emission scanning electron microscopy (FESEM) techniques. The Crystallite size of pure TiO2 and Ag/TiO2 nanoparticles was 20 and 60 nm, respectively. The Central Composite Design (CCD) was employed for experimental design and statistical analysis of independent operational parameters. According to the results of Response Surface Methodology (RSM) plots of Design-Expert software, the optimal conditions for each critical variable were as the follows: time at 113 min, pH at 6.8, initial concentration of CLZ at 40 mg/l, and catalyst concentration at 0.83gr/l. The maximum effectiveness in the experimental and predicted CLZ removal was 94.2 and 93.5%, respectively. The outcomes of Analysis of variance (ANOVA) demonstrated high determination coefficient quantities (R2 = 0.9997, Predicted R2=0.9989, and Adjusted R2=0.9994) which validated the reliability of the second-order regression model. پرونده مقاله
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  3 - Using ZnO based on Bentonite as a nano photocatalyst for degradation of Acid Red 114 in synthetic wastewater
  Reza Hekmatshoar Ahmad Reza Yari Aref Shokri
  10.22034/jna.2022.680838
  In this project, the removal of Acid Red 114(AR 114) that is a mono Azoo dye withglobal usage in an aqueous environment was explored by nano photocatalyticprocess. The ZnO was supported on Bentonite and used at suspension state ina batch photoreactor. The catalyst was s چکیده کامل

  In this project, the removal of Acid Red 114(AR 114) that is a mono Azoo dye withglobal usage in an aqueous environment was explored by nano photocatalyticprocess. The ZnO was supported on Bentonite and used at suspension state ina batch photoreactor. The catalyst was synthesized by co precipitation methodsand characterized by Scanning Electronic Microscopy (SEM), X-Ray Diffraction(XRD), and Fourier Transform Infrared (FT-IR) spectra. The effect of operationalvariables including pH, initial concentration of Acid red 114, amounts of catalystsand temperature were investigated on the removal efficiency of AR114. Theoptimum conditions were achieved at 1g/l of catalyst, 30 mg/l of AR 114, pH of9 and temperature at 35oC. The removal of AR 114 in UV, UV/ZnO, and UV/ZnO/Bentonite process were 26.5, 55 and 92.5% after 2 h of treatment, respectively.The photo catalytic degradation mechanism was described and the efficiency ofthe process increased considerably by modification of photocatalyst. پرونده مقاله
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  4 - Removal of Acid Red 33 from Aqueous Solution by Fenton and Photo Fenton Processes
  Aref Shokri
  10.22034/jchr.2017.544173
  In this project decolorization and mineralization of synthetic wastewater containing acid red 33 (AR33) was investigated by Fenton and photo Fenton processes in a batch photo reactor. A comparative assessment using Fenton and photo Fenton processes was performed after i چکیده کامل

  In this project decolorization and mineralization of synthetic wastewater containing acid red 33 (AR33) was investigated by Fenton and photo Fenton processes in a batch photo reactor. A comparative assessment using Fenton and photo Fenton processes was performed after initial optimization studies such as varying pH, the concentration of pollutant, peroxide and iron. The color removal and mineralization efficiency of AR33 were calculated by Spectrophotometric and chemical oxygen demand (COD) tests. The degradation efficiency in photo Fenton process (98.5% in 10 min of reaction) was higher than Fenton ones (97.5% in 30 min). After 60 min of reaction, the removal of COD in photo Fenton and Fenton processes was 71% and 37.5%, respectively. Therefore, photo Fenton was the most effective process in partial mineralization of AR33. Kinetic constants were evaluated using pseudo first order equations to obtain the rate constant, K. پرونده مقاله