Electrodeposition synthesis of MnO2/TiO2 nanotube arrays nanocomposites and their visible light photocatalytic activity

被引：34
|
作者：
Xu, Xuyao [1 ,2 ]
Zhou, Xiaosong [1 ,2 ]
Li, Xiaoyu [3 ]
Yang, Fei [4 ]
Jin, Bei [1 ,2 ]
Xu, Tan [1 ,2 ]
Li, Guosheng [1 ,2 ]
Li, Manyi [1 ,2 ]
机构：
[1] Zhanjiang Normal Univ, Sch Chem Sci & Technol, Zhanjiang 524048, Peoples R China
[2] Zhanjiang Normal Univ, Inst Phys Chem, Zhanjiang 524048, Peoples R China
[3] Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130012, Peoples R China
[4] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 700101, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2014年 / 59卷
关键词：
Oxides; Thin films; Semiconductivity; Catalytic properties; MANGANESE-DIOXIDE; OXYGEN REDUCTION; HYDROGEN; MNO2;
D O I：
10.1016/j.materresbull.2014.06.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
MnO2/TiO2 nanotube arrays nanocomposite photocatalysts have been synthesized through an electrodeposition method. X-ray powder diffraction analysis and X-ray photoelectron spectroscopy measurements reveal that the products of electrodeposition method are MnO2. Scanning electron microscopy measurements suggest that the depositions are deposited on the surface or internal of the nanotube. UV-vis light absorbance spectra demonstrate the excellent adsorption properties of MnO2/TiO2 over the whole region of visible light, which enables this novel photocatalytic material to possess remarkable activity in the photocatalytic degradation of acid Orange II under visible light radiation. Moreover, a possible photocatalytic mechanism is discussed. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：32 / 36
页数：5
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