Enhancement of the visible light photocatalytic performance of C-doped TiO2 by loading with V2O5

被引:63
作者
Wu, Zhongbiao
Dong, Fan
Liu, Yue [1 ]
Wang, Haiqiang
机构
[1] Zhejiang Univ, Minist Educ, Key Lab Polluted Environm Remediat & Ecol Hlth, Hangzhou 310027, Zhejiang, Peoples R China
关键词
TiO2; Carbon doping; Visible light; Photocatalyst; Heterojunction; V2O5; TITANIUM-DIOXIDE; METHYLENE-BLUE; DEGRADATION; NITROGEN; COMPOSITE; OXIDE; TRANSFORMATION; DISINFECTION; IRRADIATION; OXIDATION;
D O I
10.1016/j.catcom.2009.08.015
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
V2O5 was loaded on the surface of C-doped TiO2 (C-TiO2) by incipient wetness impregnation in order to enhance the visible light photocatalytic performance. The physicochemical properties of the C-TiO2/V2O5 composite were characterized by XRD, Raman, TEM, XPS, UV-vis diffuse reflectance spectra, and PL in detail. The result indicated that a heterojunction between C-TiO2 and V2O5 was formed and the separation of excited electron-hole pairs on C-TiO2/V2O5 is greatly promoted. Thus, this composite photocatalyst exhibited enhanced visible light photocatalytic activity in degradation of gas-phase toluene compared with the pristine C-TiO2. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:82 / 86
页数:5
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