Effect of metal deposition on the photocatalytic activity of titania-silica for the removal of 2-propanol diluted in water |
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| Authors: | Reda M Mohamed Sayoko Shironita Kohsuke Mori Hiromi Yamashita |
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| Institution: | (1) Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan;(2) Department of Advanced Materials, Central Metallurgical R&D Institute, Nanostructured Materials Lab., Helwan, Cairo, 11421, Egypt |
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| Abstract: | The influence of transition metals, such as Ag, Cr, and Co, on the photocatalytic properties of titania-silica (TiO2-SiO2) prepared via both impregnation (imp) and photo-assisted deposition (PAD) methods has been investigated. The decomposition
of 2-propanol under UV-light irradiation was used to probe the effect of transition metals deposition on the activity of titania-silica.
PAD-Ag/TiO2-SiO2 prepared by the PAD method was highly active compared to the original TiO2-SiO2, while imp-Cr/TiO2-SiO2 prepared by conventional impregnation method showed a weak tendency toward the decomposition of 2-propanol. |
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| Keywords: | TiO2-SiO2 Transition metals Photo-assisted deposition Impregnation Photocatalytic activity |
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