CuS,NiS as co-catalyst for enhanced photocatalytic hydrogen evolution over TiO2 |
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| Authors: | Qizhao Wang Guoxia Yun Yan Bai Ning An Yutao Chen Rongfang Wang Ziqiang Lei Wenfeng Shangguan |
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| Affiliation: | 1. Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Gansu Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China;2. College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China;3. Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | TiO2 photocatalysts loaded CuS and NiS as co-catalyst were prepared by hydrothermal approach and characterized by XRD, UV–visible DRS, BET, XPS, SEM and TEM. When TiO2 was loaded MS as co-catalyst, it showed higher photocatalytic activities for splitting water into hydrogen in methanol aqueous solution under 500 W Xe lamp. Among the photocatalysts with various compositions, the maximum evolution of H2 obtained from 5 wt% CuS–5 wt% NiS–TiO2 sample was about 800 μmol h−1, which was increased up to about twenty-eight times than that of TiO2 alone. It was proven that CuS, NiS can act as effective dual co-catalysts to enhance the photocatalytic H2 production activity of TiO2. |
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| Keywords: | Water splitting Titanium dioxide Dual co-catalysts Photocatalytic Hydrogen evolution |
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