| 二氧化钛纳米管阵列的构建及其光电催化性能 |
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| 引用本文： | 刘萍,李新勇,王玉新,鞠晓东,陈国华.二氧化钛纳米管阵列的构建及其光电催化性能[J].高等学校化学学报,2006,27(12):2411-2413. |
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| 作者姓名： | 刘萍 李新勇 王玉新 鞠晓东 陈国华 |
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| 作者单位： | 1. 大连理工大学环境与生命学院,工业生态与环境工程教育部重点实验室,大连,116024
2. 香港科技大学化工系,香港九龙清水湾 |
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| 基金项目： | 国家自然科学基金(批准号:29977003)，辽宁省科技基金(批准号:20022142)资助. |
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| 摘 要： | 利用阳极氧化法制备了TiO2纳米管阵列, 研究了其光电化学性能, 并且应用该电极对偶氮染料催化降解进行了初步研究.
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| 关 键 词： | TiO2纳米管电极 光电催化 偶氮染料 降解 |
| 文章编号： | 0251-0790（2006）12-2411-04 |
| 收稿时间： | 02 22 2006 12:00AM |
| 修稿时间： | 2006-02-22 |
Construction and Photoelectrocatalytic Properties of TiO2 Nanotubes Arrays on Titanium Substrates |
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| LIU Ping,LI Xin-Yong,WANG Yu-Xin,JU Xiao-Dong,CHEN Guo-Hua.Construction and Photoelectrocatalytic Properties of TiO2 Nanotubes Arrays on Titanium Substrates[J].Chemical Research In Chinese Universities,2006,27(12):2411-2413. |
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| Authors: | LIU Ping LI Xin-Yong WANG Yu-Xin JU Xiao-Dong CHEN Guo-Hua |
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| Institution: | Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental and Biological Science &; Technology, Dalian University of Technology, Dalian 116024, China;
Department of Chemical Engineering, The Hong Kong University of Science &; Technology, Clear Water Bay, Kowloon, Hong Kong, China |
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| Abstract: | In this paper, vertically aligned nanotubes arrays of titanium oxide were fabricated on the surface of titanium substrate by direct anode oxidation with HF being the supporting electrolyte. Under the condition of applying the same bias on the electrodes, a higher anodic photocurrent of the TiO_2 nanotubes electrode was obtained than that of TiO_2 film electrode, which is due to the larger specific surface area, novel microstructure and higher efficient surface-interface electron migration of nanotube electrode. The degradation of a textile azo dye, Acid Orange 7(AO7), in aqueous solution with TiO_2 nanotubes electrode was carried out using photoelectrocatalytic(PEC) process, comparing with electrochemical process(EP) and photocatalytic(PC). A significant photo-electrochemical synergetic effect was observed. The reason is attributed to the surface state characteristics and higher separation efficiency of photo-generated charge carrier of nanotube system. |
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| Keywords: | TiO_ 2 nanotube electrode Photoelectrocatalysis Azo dye Degradation |
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