Nowadays, the production of bio-oil and chemical intermediates from renewable energy sources isvery important because of growing concerns about climate and environmental changes. In thiswork, the thermal liquefaction of Sambucus ebulus (Danewort plant) is studied with a focus on theyield and composition of the produced bio-oil. The produced bio-oil was characterized by FTIR,GC, and GC-MS analyses, and more than 35 different chemical components were identified in it.About 60 w% of the produced bio-oil is composed of five chemical components of acetic acid(21.29%), pentanoic acid (19%), acetone (10.64%), neophytadiene (5%), and α-pinene (4.4%). Theeffects of various process parameters of reaction temperature, time, and concentration of solutionmedia on the yield and composition of products were studied. The maximum yield of the producedbio-oil is about 42% in a temperature of 160°C, a reaction time of 2 h, and 0.75 V% of ethyl acetatein the solution media. Manuscript profile

Co-precipitation procedure was applied in order to obtain different kinds of magnetic nanoadsobents for the removal of Pb(II) and Cu(II) toxic metal ions from wastewater samples. Prepared nanoadsorbents were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffractometer (XRD), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). The average sizes of these nanoparticles were found to be about 15 to 35 nm. Adsorption studies of heavy metal ions were carried out by batch experiments. pH, temperature, contact time and adsorbent dose were studied as the factors that effecting the adsorption of heavy metal ions on the surface of magnetic nanoadsorbents. The optimized values for pH, temperature, contact time and adsorbent dose were 10, 313 K, 50 min and 0.2 g, respectively. Also the maximum amounts of removal efficiency for pb2+ and Cu2+ ions was 98%. Thermodynamic parameters reveal the feasibility and spontaneity nature of the adsorption process and the adsorption kinetics of pb(II) and Cu(II) ions follow a pseudo-second-order kinetic model. Manuscript profile

Today, despite of the increasing demands for the products of chemical industries and the related factories, the challenges of environmental pollution has not been improved and it is approaching a very dangerous stage. In this regard, the role of dyeing industries in contaminating the environment is undeniable. In this research, ZnO and ZnO-TiO2 nanoparticles were synthesized by co-precipitation and sol-gel methods, respectively. The synthesized nanoparticles were characterized by XRD and FE-SEM techniques and their band gap energy were determined using the UV-Vis spectrum obtained from the suspension of nanoparticles. By using synthesized nanoparticles, degradation of malachite green under irradiation of the UV (A)-Visible mixture light from aqueous solution were evaluated and the effect of different parameters such as amount of photo catalyst, time of light irradiation and dose of H2O2 have been studied. The destruction amount was determined by UV-Vis spectroscopy method. Based on the reported results, the maximum degradation efficiency of about 99% was obtained in the optimal values of experimental conditions. Manuscript profile

Today, despite the increasing demands for the products of chemical industries and the relatedfactories, the challenges of environmental pollution have not been improved and it is approaching avery dangerous stage. In this regard, the role of dyeing industries in contaminating the environment isundeniable. In this research, ZnO and ZnO-TiO2 nanoparticles were synthesized by co-precipitation andsol-gel methods, respectively. The synthesized nanoparticles were characterized by XRD and FE-SEMtechniques and their band gap energy were determined using the UV-Vis spectrum obtained from thesuspension of nanoparticles. By using synthesized nanoparticles, degradation of malachite green underirradiation of the UV (A) -Visible mixture light from aqueous solution were evaluated and the effect ofdifferent parameters such as amount of photo catalyst, time of light irradiation and dose of H2O2hasbeen studied. The destruction amount was determined by UV-Vis spectroscopy method. Based on thereported results, the maximum degradation efficiency of about 99% was obtained in the optimal valuesof experimental conditions. Manuscript profile