Preparation, characterization and photocatalytic activity of in situ Fe-doped TiO2 thin films

被引：154
作者：
Yu, JG [1 ]
Yu, HG
Ao, CH
Lee, SC
Yu, JC
Ho, WK
机构：
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
[2] Hong Kong Polytech Univ, Dept Civil & Struct Engn, Res Ctr Urban Environm Technol & Management, Kowloon, Hong Kong, Peoples R China
[3] Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China
来源：
THIN SOLID FILMS | 2006年 / 496卷 / 02期
基金：
中国国家自然科学基金;
关键词：
titanium oxide; photocatalysis; steel; x-ray diffraction;
D O I：
10.1016/j.tsf.2005.08.352
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fe-doped TiO2 thin films were prepared in situ oil stainless steel substrates by liquid phase deposition, followed by calcination at various temperatures. It was found that some Fe3+ ions were in situ doped into the TiO2 thin films. At 400 degrees C, the film became photoactive due to the formation of anatase phase. At 500 degrees C, the film showed the highest photocatalytic activity due to an optimal Fe3+ ion concentration in the film. At 900 degrees C, the photocatalytic activity of the films decreased significantly due to the further increase of Fe3+ ion concentration, the formation of rutile phase and the sintering and growth of TiO2 crystallites. (c) 2005 Elsevier B.V. All rights reserved.
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页码：273 / 280
页数：8
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