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

页码：1175 / 1179

页数：5

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