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Synthesis and evaluations of Fe3O4–TiO2–Ag nanocomposites for photocatalytic degradation of 4-chlorophenol (4-CP): effect of Ag and Fe compositions | ||
International Journal of Industrial Chemistry | ||
دوره 9، شماره 2، شهریور 2018، صفحه 141-151 | ||
نوع مقاله: research article | ||
شناسه دیجیتال (DOI): https://doi.org/10.1007/s40090-018-0145-4 | ||
نویسندگان | ||
Amir Shojaie1؛ Moslem Fattahi* 1؛ Sahand Jorfi2؛ Bahram Ghasemi1 | ||
1Department of Chemical Engineering, Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran | ||
2Department of Environmental Health Engineering, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran | ||
چکیده | ||
This work reports the synthesis of nanocomposites of Fe3O4–TiO2–Ag with different weight concentrations of iron (Fe) and silver (Ag) doped on TiO2. The nanocomposites were prepared by a novel and facile ultrasonic-assisted hydrothermal method, and their effectiveness was evaluated for photocatalytic degradation. X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, and N2 adsorption–desorption methods were performed to characterize the prepared catalysts. The photocatalytic activity of Fe3O4–TiO2–Ag was studied by illumination of 4-chlorophenol (4-CP) in an aqueous solution under UV irradiation, which showed significant enhancement in the degradation of 4-CP compared to un-doped nano TiO2. The maximum degradation of 97% in 165 min for Fe3+ and Ag+ with 0.3 and 2% wt. was observed. Furthermore, the stability and reusability of the synthesized catalysts were studied and demonstrated only 3% decrease in removal efficiency after five cycles. | ||
کلیدواژهها | ||
Photocatalytic degradation · Fe؛ Ag doped TiO2· Hydrothermal synthesis · 4-Chlorophenol · UV irradiation | ||
آمار تعداد مشاهده مقاله: 18 |