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无机材料学报

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阴极共电沉积法制备 Fe 3+掺杂 TiO 2纳米薄膜及其可见光活性

曹江林 1, 吴祖成 1, 曹发和 2, 张鉴清 2,3   

  1. 1. 浙江大学环境工程系, 杭州 310027; 2. 浙江大学化学系, 杭州 310027; 3. 中国科学院金属研究所金属腐蚀与防护国家重点实验室, 沈阳 110016
  • 收稿日期:2006-06-08 修回日期:2006-09-04 出版日期:2007-05-20 网络出版日期:2007-05-20

Cathodic Co-electrodeposition of Fe3+-doped TiO2 Thin Films
and Their Photocatalytic Activity under Visible Light

CAO Jiang-Lin 1, WU Zu-Cheng 1, CAO Fa-He 2, ZHANG Jian-Qing 2,3   

  1. 1. Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China; 2. Department of Chemistry, Zhejiang University, Hangzhou 310027, China; 3. State Key Laboratory for Corrosion and Protection of Metals, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2006-06-08 Revised:2006-09-04 Published:2007-05-20 Online:2007-05-20

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摘要： 研究了阴极共电沉积制备Fe 3+掺杂TiO 2纳米薄膜(Fe-TiO 2)的新方法. 应用该方法、溶胶-凝胶法和浸渍法分别制备了具有可见光响应的Fe-TiO 2光催化剂. 并用XRD、SEM、EDS和UV-vis吸收光谱对Fe-TiO 2进行了表征. 结果表明, 与溶胶-凝胶法和浸渍法相比共电沉积法不仅能有效地实现Fe 3+在TiO 2中的均匀分布, 而且, 得到的光催化剂具有最大的比表面积和最好的光降解活性. Rhodamine B (RhB)降解实验表明, 在RhB光降解中存在光敏化和光催化降解的协同效应.

关键词: 共电沉积, 掺杂, TiO2膜, 可见光

Abstract: A novel cathodic co-electrodeposition (CCED) method for the preparation of Fe 3+ -doped TiO 2 thin film (Fe-TiO 2) was studied. The thin film photocatalysts of Fe-TiO 2 containing different amounts of Fe 3+ were prepared by the
CCED, wet impregnation and sol-gel methods. The photocatalysts were characterized by X-ray diffraction analysis (XRD), specific surface area measurements, SEM-EDS and UV-vis absorption spectra. In the three types of photocatalysts, the photocatalysts obtained by CCED not only have a more homogeneous distribution of Fe 3+ , but also have the largerst specific surface area and the photodegradation activity than those obtained by the other two. In addition, the experimental results show that there is a synergetic effect of photosensitization and photocatalytic in RhB degradation.

Key words: co-electrodeposition, dope, TiO2 film, visible light

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