Nitrogen and vanadium Co-doped TiO2 mesosponge layers for enhancement in visible photocatalytic activity

被引：29

作者：

Zhong, Jiasong ^{[1
]}

Xu, Jinrong ^{[2
]}

Wang, Qingyao ^{[3
]}

机构：

[1] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China

[2] Anhui Univ Architecture, Dept Math & Phys, Hefei 230022, Peoples R China

[3] Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2014年 / 315卷

关键词：

TiO2 nanotube arrays; TiO2; mesosponge; Hydrothermal method; N and V co-doping; LIGHT IRRADIATION; NANOPARTICLES; ARRAYS; FILMS; WATER;

D O I：

10.1016/j.apsusc.2014.07.040

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：

Novel N and V co-doped TiO2 mesosponge (N-V-TMSW) layers were successfully prepared by one-step hydrothermal treatment of TiO2 nanotube arrays, and the phase composition, morphology and optical property were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Atomic force microscope (AFM), X-ray photoelectron spectroscopy (XPS) and UV-vis diffusion reflectance spectroscopy (DRS). The crystal structure and density of states were studied by means of the first-principle pseudo-potential plane wave. The results indicated that titanium ions and oxygen atoms in TiO2 were successfully substituted by vanadium ions and nitrogen atoms, respectively. The sample N-V0.1-TMSW showed a remarkable absorption in the visible light range of 400-600 nm and high visible photocatalytic activity (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：131 / 137

页数：7

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