Nano-sized Fe-metal catalyst on ZnO-SiO2: (photo-assisted deposition and impregnation) Synthesis routes and nanostructure characterization |
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| Authors: | RM Mohamed MA Al-RayyaniES Baeissa IA Mkhalid |
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| Affiliation: | a Chemistry Department, Faculty of Science, King Abdel-Aziz University, Jeddah, Saudi Arabia
b Advanced Matertials Department, Central Metallurgical R&D Institute, CMRDI, P.O. Box 87 Helwan, Cairo, Egypt |
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| Abstract: | A nano-sized Fe metal on ZnO-SiO2 was synthesized using the photo-assisted deposition (PAD) and impregnation routes. The obtained samples were characterized by a series of techniques including X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy, N2 adsorption, extended X-ray absorption fine structure (EXAFS), and transmission electron microscopy (TEM). Photocatalytic reactivity using Fe-ZnO-SiO2 catalysts under visible-light condition on the degradation of methylene blue dye was evaluated. The results of characterization reveal, a notable photocatalytic activity of PAD:Fe-ZnO-SiO2 which was about 9 and 12 times higher than that of Img:Fe-ZnO-SiO2 and ZnO-SiO2, respectively. |
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| Keywords: | Sol-gel technique Visible photocatalyst Waste water treatment |
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