Bactericidal and photocatalytic activities of TiO2 thin films prepared by sol-gel and reverse micelle methods

被引:54
|
作者
Yu, JC [1 ]
Tang, HY
Yu, JG
Chan, HC
Zhang, LZ
Xie, YD
Wang, H
Wong, SP
机构
[1] Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China
[2] Chinese Univ Hong Kong, Dept Physiol, Shatin, Hong Kong, Peoples R China
[3] Chinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong, Peoples R China
[4] Chinese Univ Hong Kong, Mat Sci & Technol Res Ctr, Shatin, Hong Kong, Peoples R China
基金
中国国家自然科学基金;
关键词
TiO2 thin films; sol-gel method; reverse micelle method; E; coli; bactericidal activity; rhodamine B;
D O I
10.1016/S1010-6030(02)00275-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The present study investigated bactericidal and photocatalytic activities of transparent anatase TiO2 thin films on soda-lime glass prepared by using reverse micelle and sol-gel methods. Both films exhibited significant bactericidal activity towards three strains of Escherichia coli, namely DH5alpha, JM109 and XL1 Blue MRF. The TiO2 films were characterized by X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), X-ray diffraction (XRD), and UV-Vis spectrometry. Results of photocatalytic activity measurements suggest that the TiO2 film prepared by the reverse micelle method is a better photocatalyst than that prepared by sol-gel method in gaseous phase oxidation but their activities in aqueous phase are about the same. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:211 / 219
页数:9
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