| 负载型Pt-TiO2光催化剂的研究 |
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| 引用本文： | 蔡乃才,王亚平,曹银良.负载型Pt-TiO2光催化剂的研究[J].催化学报,1999,20(2):177-180. |
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| 作者姓名： | 蔡乃才 王亚平 曹银良 |
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| 作者单位： | 武汉大学化学系,武汉,430072 |
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| 基金项目： | 国家自然科学基金;296066; |
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| 摘 要： | TiO2粉末悬浮体系是一种研究比较早的光催化反应体系1,2].由于它存在易凝聚和难回收等缺点,给实际应用带来了一定的困难.克服这一障碍的有效途径是制备负载型TiO23].所以,这些年来人们对负载型TiO2光催化体系颇有兴趣.从目前的文献报道来看,制备负载型TiO2的方法主要是溶胶法4].采用溶胶法可在导体或非导体的基体上获得结合牢固、尺寸分布均匀的薄膜,但是膜的催化活性有待于提高.
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| 关 键 词： | 二氧化钛膜 光催化活性 粉末-溶胶法 铂 |
| 修稿时间： | 1998年7月20日 |
A STUDY OF SUPPORTED Pt-TiO2 PHOTOCATALYST |
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| Cai Naicai,Wang Yaping,Cao Yinliang.A STUDY OF SUPPORTED Pt-TiO2 PHOTOCATALYST[J].Chinese Journal of Catalysis,1999,20(2):177-180. |
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| Authors: | Cai Naicai Wang Yaping Cao Yinliang |
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| Abstract: | A supported titania film prepared from tetrabutyl titanate containing TiO 2 powder through the powder sol gel method by dip coating technique has been investigated. The results indicate that the film possesses porous structure. Photocatalytic activity of the film is higher than that prepared simply through sol gel method and varies with the film thickness and diameter of TiO 2 particles. Furthermore, the activity is improved when Pt was loaded on the film by photoelectrochemical method. |
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| Keywords: | titania film photocatalytic activity powder sol gel method platinum |
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