Visible-light photocatalysis in nitrogen-doped titanium oxides

被引：11568

作者：

Asahi, R ^{[1
]}

Morikawa, T ^{[1
]}

Ohwaki, T ^{[1
]}

Aoki, K ^{[1
]}

Taga, Y ^{[1
]}

机构：

[1] Toyota Cent Res & Dev Labs Inc, Aichi 4801192, Japan

来源：

SCIENCE | 2001年 / 293卷 / 5528期

关键词：

D O I：

10.1126/science.1061051

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

To use solar irradiation or interior Lighting efficiently, we sought a photocatalyst with high reactivity under visible Light. Films and powders of TiO2-XNX have revealed an improvement over titanium dioxide (TiO2) under visible Light (wavelength < 500 nanometers) in optical absorption and photocatalytic activity such as photodegradations of methylene blue and gaseous acetaldehyde and hydrophilicity of the film surface, Nitrogen doped into substitutional sites of TiO2 has proven to be indispensable for band-gap narrowing and photocatalytic activity, as assessed by first-principles calculations and x-ray photoemission spectroscopy.

引用

页码：269 / 271

页数：3

共 24 条

[1]

Anpo M., 1997, CATAL SURV JPN, V1, P169

[2] Electronic and optical properties of anatase TiO2 [J].