Visible light-driven nitrogen doped TiO2 nanoarray films: Preparation and photocatalytic activity

被引：50
|
作者：
Wang, Jinshu [1 ]
Wang, Zhenzhen [1 ]
Li, Hongyi [1 ]
Cui, Yuntao [1 ]
Du, Yucheng [1 ]
机构：
[1] Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab New Funct Mat, Beijing 100124, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 494卷 / 1-2期
关键词：
TiO2; nanoarray; Nitrogen doping; Photocatalytic activity; Liquid phase deposition; THIN-FILMS; TITANIA PHOTOCATALYST; FABRICATION; NANOWIRES; ANATASE; GROWTH; ARRAYS; NANOPARTICLES; IRRADIATION; DEPOSITION;
D O I：
10.1016/j.jallcom.2010.01.049
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：
Highly ordered aligned nitrogen doped titania nanotubes array films have been successfully prepared by liquid phase deposition (LPD) method. A new band gap in visible light region (570 nm) corresponding to 2.17 eV could be formed by nitrogen doping. Effects of anodic alumina membrane type on the morphology of titania films have been studied. Using the membrane with a certain volume fraction of Al2O3 (less than 0.71), the ordered aligned titania nanotubes were obtained. Otherwise, titania existed as ordered aligned nanorods. Under the irradiation of light with wavelength larger than 410 nm, the photocatalytic activity of nitrogen doped TiO2 nanotube film was 3 times greater than that of pure TiO2 film due to the high visible light absorption. Furthermore, TiO2 nanotube film exhibited much higher photocatalytic activity than the TiO2 nanorod film. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：372 / 377
页数：6
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