| Eosin Y/Pt/SiO2催化剂光催化还原水制氢 |
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| 引用本文： | 张晓杰,汤长青,靳治良,吕功煊,李树本.Eosin Y/Pt/SiO2催化剂光催化还原水制氢[J].物理化学学报,2011,27(5):1143-1148. |
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| 作者姓名： | 张晓杰 汤长青 靳治良 吕功煊 李树本 |
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| 作者单位： | 1. State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China;2.Department of Metallurgical and Chemical Engineering, Jiyuan Vocational and Technical Collage, Jiyuan, 454650, Henan Province, P. R. China |
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| 基金项目： | 国家重点基础研究发展规划(973) |
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| 摘 要： | 构建了具有较高可见光还原水制氢性能的Eosin Y/Pt/SiO2催化体系, 详细考察了二氧化硅性质、曙红Y与二氧化硅的混合方式以及光照强度等因素对光敏化催化剂制氢性能的影响. 实验结果表明: 二氧化硅的比表面积增大, 析氢速率随之提高; 光照强度过高或过低都不利于提高光量子效率; 与曙红Y浸渍法吸附在二氧化硅表面制备的催化剂相比, 原位物理混合制备的催化剂光敏化析氢速率和稳定性均有显著提高.
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| 关 键 词： | 曙红Y 光敏化析氢 二氧化硅 可见光 |
| 收稿时间： | 2010-12-13 |
| 修稿时间： | 2011-03-31 |
Photocatalytic Reduction of Water to Hydrogen over Eosin Y/Pt/SiO2 Catalysts |
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| ZHANG Xiao-Jie,TANG Chang-Qing,JIN Zhi-Liang,LU Gong-Xuan,LI Shu-Ben.Photocatalytic Reduction of Water to Hydrogen over Eosin Y/Pt/SiO2 Catalysts[J].Acta Physico-Chimica Sinica,2011,27(5):1143-1148. |
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| Authors: | ZHANG Xiao-Jie TANG Chang-Qing JIN Zhi-Liang LU Gong-Xuan LI Shu-Ben |
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| Institution: | 1. State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China;2.Department of Metallurgical and Chemical Engineering, Jiyuan Vocational and Technical Collage, Jiyuan, 454650, Henan Province, P. R. China |
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| Abstract: | A novel efficient photoscatalytic system Eosin Y/Pt/SiO2 for photocatalytic reduction of water to hydrogen under visible light irradiation was constructed. The effects of parameters, such as the surface physical property of SiO2 (i.e., specific surface area), method of mixing Eosin Y and SiO2, and light intensity on catalyst properties for hydrogen evolution were investigated systemically. With increase of SiO2 specific surface area, the rate of hydrogen evolution increased. Either over high or low intensiv... |
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| Keywords: | Eosin Y Photosensitized hydrogen evolution Silicon dioxide Visible light |
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