| TiO2/Cu2O复合光催化剂的制备及表征 |
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| 引用本文： | 刘辉,曹立新,朱林,石良.TiO2/Cu2O复合光催化剂的制备及表征[J].中国海洋大学学报(自然科学版),2012,42(4):66-70. |
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| 作者姓名： | 刘辉 曹立新 朱林 石良 |
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| 作者单位： | 中国海洋大学材料科学与工程研究院,山东青岛,266100 |
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| 基金项目： | 2008年教育部新世纪人才支持计划资助项目，山东省优秀中青年科学家奖励基金资助项目 |
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| 摘 要： | 通过浸渍-还原法;在不同Cu2+/Ti4+摩尔比下制备TiO2/Cu2O复合光催化剂,通过X射线衍射(XRD)、扫描电镜(SEM)、紫外可见漫反射(UV-DRS)等手段对TiO2/Cu2O复合光催化剂进行了表征.在可见光照射下,研究TiO2/Cu2O复合光催化剂对水中难降解有机污染物甲基橙的光催化降解效果.结果表明,氙灯照射下,TiO2/Cu2O复合光催化剂与单纯的纳米TiO2 (P25)相比,光催化降解效果得到明显的提高.Cu2+/Ti4+摩尔比1∶2时制备的TiO/Cu2O复合光催化剂具有最好的光催化降解效果.
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| 关 键 词： | TiO2 Cu2O 复合光催化剂 可见光 |
Preparation-and Characterization of TiO2/Cu2O Composite Photocatalysts |
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| LIU Hui
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CAO Li-Xin
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ZHU Lin
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SHI Liang.Preparation-and Characterization of TiO2/Cu2O Composite Photocatalysts[J].Periodical of Ocean University of China,2012,42(4):66-70. |
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| Authors: | LIU Hui CAO Li-Xin ZHU Lin SHI Liang |
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| Institution: | (Institute of Material Science and Engineering,Ocean University of China,Qingdao 266100,China) |
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| Abstract: | TiO2/Cu2O composite photocatalysts with different molar ratios of Cu2+/Ti4+ were prepared by a simple "soak-deoxidize" method,and were characterized by X-ray diffraction,scanning electron microscopy and UV vis diffuse reflection spectra.The photocatalytic activities of TiO2/Cu2O composite photocodalysts were evaluated by degradation of a basic organic dye,methyl orange(MO) in water under xenon lamp irradiation.The results show that the photocatalytic activities of TiO2/Cu2O composite photocatalysis have been obviously improved comparing with that of pure TiO2(P25).The TiO2/Cu2O composite photocatalyst(made by Cu2+/Ti4+ molar ratio of 1∶2) show the best photocatalytic efficiencies. |
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| Keywords: | TiO2 Cu2O compound photocatalyst visible light |
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