Preparation of SiO2-Pt-CdS composite photocatalyst and its photocatalytic activity for hydrogen evolution under visible light |
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| Authors: | Shaoqin Peng Dan Xie Yuexiang Li Gongxuan Lu and Shuben Li |
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| Institution: | (1) Department of Chemistry, Nanchang University, Nanchang, 330031, PR China;(2) State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, PR China |
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| Abstract: | CdS nanoparticles were prepared by the precipitation method. Pt was loaded on CdS by photodeposition. SiO2-Pt-CdS was synthesized via hydrolysis of tetraethylorthosilicate in the presence of Pt-CdS. The samples were characterized
by XRD, BET, PL and UV-Vis techniques. The photocatalytic activity of the samples for hydrogen evolution was investigated
under visible light irradiation (λ ≥ 420 nm). The stability and activity of CdS was improved by coating SiO2. |
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| Keywords: | SiO2-CdS composite hydrogen evolution visible light |
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