Visible light-assisted bactericidal effect of metalphthalocyanine-sensitized titanium dioxide films

被引:52
作者
Yu, JC [1 ]
Xie, YD
Tang, HY
Zhang, LZ
Chan, HC
Zhao, JC
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 Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
基金
中国国家自然科学基金;
关键词
Escherichia coli; visible light; bactericidal effect; copper(II) phthalocyaninechloride; copper(II) phthalocyaninetetrasulfonic acid;
D O I
10.1016/S1010-6030(03)00008-X
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
Two dye-sensitized semiconductor titanium dioxide films containing copper(II) phthalocyaninechloride (CuPcCl14-15) and copper(II) phthalocyaninetetrasulfonic acid (CuPcTs) TiO2 films were prepared. Their bactericidal effects under visible light irradiation were measured. Experimental results indicate that these films inhibit the growth of Escherichia coli under visible light irradiation, and the bactericidal efficiency is related to the coverage of the TiO2 films. A possible mechanism was proposed. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:235 / 241
页数:7
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