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Highly efficient Pt/TiO2 photocatalyst prepared by plasma-enhanced impregnation method |
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| Authors: | Ji-Jun Zou Chang-Jun Liu Kai-Lu Yu Dang-Guo Cheng Yue-Ping Zhang Fei He Hai-Yan Du Lan Cui |
| Institution: | aKey Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, PO Box 796666, Tianjin 300072, China bDepartment of Chemistry, Tianjin University, Tianjin 300072, China cAnalysis Center, Tianjin University, Tianjin 300072, China |
| Abstract: | Highly efficient Pt/TiO2 photocatalyst has been prepared using plasma-enhanced impregnation method. Impregnated 0.5 wt%Pt/TiO2 was treated by plasma followed with thermal calcinations and hydrogen reduction. The catalyst characterizations show that Pt is highly dispersed with a size of 3–5 nm. UV–Vis reflection spectrum suggests it a high photosensitivity in near UV region. Such plasma prepared catalyst exhibits a much higher activity and better metal stability for hydrogen generation from methanol/water mixture, compared to the catalyst prepared conventionally. This highly efficient photocatalyst should have extensive applications in photocatalytic processes. |
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