Visible-light-activated nanoparticle photocatalyst of iodine-doped titanium dioxide

被引：494

作者：

Hong, XT

Wang, ZP

Cai, WM ^{[1
]}

Lu, F

Zhang, J

Yang, YZ

Ma, N

Liu, YJ

机构：

[1] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China

[2] Environm Technol Inst Pudong New Dist, Shanghai 201200, Peoples R China

来源：

CHEMISTRY OF MATERIALS | 2005年 / 17卷 / 06期

关键词：

D O I：

10.1021/cm047891k

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：

A novel class of visible-light-activated TiO2 photocatalysts were prepared by direct hydrolysis of tetrabutyl titanate through iodine-doping. When calcination temperature is at 673 K, these nanoparticles (mean diameter of similar to 5 nm) show stronger absorption in the 400-550 nm range with a red shift in the band gap transition and significantly higher photocatalytic activity than pure TiO2 prepared by the same procedure and Degussa P-25 titania nanoparticles in aqueous phenol solution under visible light irradiation (lambda > 400 nm). Furthermore, I-doped TiO2 (673 K) still showed pronounced photocatalytic activity under UV and visible light irradiation.

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页码：1548 / 1552

页数：5

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