Enhanced photoactivity of silica-titania binary oxides prepared by sol-gel method

被引：8

作者：

Cheng, P ^{[1
]}

Zheng, MP ^{[1
]}

Huang, Q ^{[1
]}

Jin, YP ^{[1
]}

Gu, MY ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab MMCs, Shanghai 200030, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 2003年 / 22卷 / 16期

关键词：

D O I：

10.1023/A:1025187330150

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The enhanced photoactivity of silica-titania binary oxides prepared by sol-gel method was discussed. The photodegradation for methyl orange with 30SiO2/TiO2 samples calcinated at different temperature under ultraviolet (UV) irradiation was also illustrated. It was found that the oxygen vacancies, acting as the capturing centers of the photoelectrons, can stop the recombination of photoelectrons and photoholes, which help to increase the photoactivity of 30SiO2/TiO2.

引用

页码：1165 / 1168

页数：4

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