In-situ preparation of WO3/TiO2 composite film with increased photo quantum efficiency on titanium substrate

被引：24
|
作者：
He, J. [1 ]
Cai, Q. Z. [1 ]
Zhu, D. [1 ]
Luo, Q. [1 ]
Zhang, D. Q. [1 ]
Li, X. W. [1 ]
Zhao, X. [1 ]
Sun, W. [1 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Dies & Mould Technol, Wuhan 430074, Peoples R China
来源：
CURRENT APPLIED PHYSICS | 2011年 / 11卷 / 01期
关键词：
Pure titanium; Micro-arc oxidation; WO3/TiO2 composite film; Photo quantum efficiency; VISIBLE-LIGHT ILLUMINATION; MICRO-ARC OXIDATION; PHOTOCATALYTIC ACTIVITY; TIO2; COATINGS;
D O I：
10.1016/j.cap.2010.06.026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A WO3/TiO2 composite film was in-situ prepared in tungstate electrolyte and characterized by Electron microscopy, X-ray diffraction, UV-Vis spectrophotometer and Photoluminescence. The oxide film consists of mixture phases of anatase and rutile, showing porous structures and metallurgical bond with substrate. With the incorporation of WO3 into TiO2, the optical absorption edge of TiO2 film was shifted to longer wavelength slightly and the separation between electrons and holes was promoted effectively. WO3/TiO2 composite film with increased photo quantum efficiency will be promising in the treatment of environmental pollutants. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：98 / 100
页数：3
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