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

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2002年 / 153卷 / 1-3期

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

页码：211 / 219

页数：9

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