Efficient visible-light-induced photocatalytic disinfection on sulfur-doped nanocrystalline titania

被引：715
|
作者：
Yu, JC [1 ]
Ho, WK
Yu, JG
Yip, H
Wong, PK
Zhao, JC
机构：
[1] Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China
[2] Chinese Univ Hong Kong, Dept Biol, Shatin, Hong Kong, Peoples R China
[3] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100864, Peoples R China
来源：
ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2005年 / 39卷 / 04期
关键词：
D O I：
10.1021/es035374h
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Sulfur-doped titanium dioxide exhibits a strong visible-light-induced antibacterial effect. The new photocatalyst can effectively kill Micrococcus lylae, a common Gram-positive bacterium. The relationship between sulfur concentration and the bactericidal activity,of S-doped TiO2 was investigated. Results from DMPO spin-trapping electron spin resonance measurements confirm the formation of hydroxyl radicals, which is the origin of the considerable bactericidal activity under visible light irradiation.
引用
收藏
页码：1175 / 1179
页数：5
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