Photocatalytic decolorization of methyl orange dye using nano- photocatalysts
سال انتشار: 1394
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 361
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شناسه ملی سند علمی:
JR_AET-1-3_003
تاریخ نمایه سازی: 21 فروردین 1397
چکیده مقاله:
Environmental contamination, which is growing around the world, is a serious problem that cannot be neglected. Among all contaminations, water pollution is a major problem. Azo dyes are one of the largest groups of pollutants found in the drinking water, dyestuff and the food and textile industries. TiO2/Fe3O4 and TiO2/Fe2O3 nanocomposites with various ratios were synthesized by an ultrasonicassisted deposition-precipitation method and their UV-light decolorization of methyl orange (MO) dye was investigated. The effect of Fe3O4/TiO2 and Fe2O3-TiO2nanocomposites ratio on the photocatalytic activity and magnetic property of the nanocomposites was studied by comparing their decolorization curves and magnetism in the presence of magnet, respectively. The results revealed that the decolorization efficiency of 1 wt% Fe3O4/TiO2 nanocomposite reached about 40% within 60 min UV irradiation at room temperature. However, this sample showed the least magnetism. Also, the ability of synthesized nanocomposites in holding the adsorbed methyl orange dye on their surface and the effect of pH were investigated
کلیدواژه ها:
نویسندگان
Amin Ahmadpour
Amirkabir Petrochemical Complex, Research and Technology Centre, Mahshahr, Iran
Mohsen Zare
Department of Chemical Engineering, Petroleum University of Technology, Ahwaz, Iran
Milad Behjoomanesh
Department of Chemical Engineering, Petroleum University of Technology, Ahwaz, Iran
Majid Avazpour
Department of Chemical Engineering, Petroleum University of Technology, Ahwaz, Iran