Enhanced Photocatalytic Activity of Nitrogen Doped TiO2 Anatase Nano-Particle under Simulated Sunlight Irradiation

被引：113

作者：

Cheng, Xiuwen ^{[1
]}

Yu, Xiujuan ^{[1
]}

Xing, Zipeng ^{[1
]}

Wan, Jiafeng ^{[1
]}

机构：

[1] Heilongjiang Univ, Dept Environm Sci & Engn, Harbin 150080, Heilongjiang, Peoples R China

来源：

2012 INTERNATIONAL CONFERENCE ON FUTURE ENERGY, ENVIRONMENT, AND MATERIALS, PT A | 2012年 / 16卷

关键词：

nitrogen doped; TiO2; visible light; phenol; mechanism; PHOTOELECTROCHEMICAL PROPERTIES; TRANSFORMATION; DEGRADATION; PHENOL; RUTILE;

D O I：

10.1016/j.egypro.2012.01.096

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Nitrogen doped TiO2 nanoparticles were successfully synthesized by the addition of ammonia water. The as-synthesized TiO2 nano-particles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV-visible diffuse reflectance spectra (UV-vis DRS). It was found that doping with nitrogen could effectively inhibit the phase transformation of TiO2 from anatase to brookite, enhance light absorption in visible region. The photocatalytic efficiency of phenol on N doped TiO2 nano-particle was higher than that of undoped and P25 TiO2, which could be attributed to the small crystallite size, high crystallinity, intense light absorption in visible region and narrow band gap energy. Further, the formation mechanism of N doped TiO2 was proposed. (c) 2011 Published by Elsevier B.V. Selection and/or peer-review under responsibility of International Materials Science Society.

引用

页码：598 / 605

页数：8

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