A facile hydrothermal deposition of ZnFe2O4 nanoparticles on TiO2 nanotube arrays for enhanced visible light photocatalytic activity

被引：125

作者：

Wang, Mengye ^{[1
]}

Sun, Lan ^{[1
]}

Cai, Jianhuai ^{[1
]}

Huang, Pan ^{[1
]}

Su, Yufeng ^{[1
]}

Lin, Changjian ^{[1
]}

机构：

[1] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 39期

基金：

中国国家自然科学基金;

关键词：

SENSITIZED SOLAR-CELLS; HYDROGEN GENERATION; CHARGE-TRANSFER; ELECTRODE; FILMS; DEGRADATION; EFFICIENCY; NANORODS; ZNO;

D O I：

10.1039/c3ta12577g

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：

ZnFe2O4 coupled TiO2 nanotube arrays (ZnFe2O4-TiO2 NTAs) were synthesized by modifying TiO2 nanotube arrays with ZnFe2O4 nanoparticles. Self-organized TiO2 NTAs with a tube diameter of 100 nm and length of 400 nm were prepared by an electrochemical anodization method. ZnFe2O4 nanoparticles were deposited on the surface of TiO2 nanotubes through a facile hydrothermal route. The modification of ZnFe2O4 nanoparticles extended the photoresponse of TiO2 nanotube arrays into the visible light region. Under visible light irradiation, a 12-fold enhancement in photocatalytic activity was achieved using ZnFe2O4-TiO2 NTAs compared with TiO2 NTAs. The enhanced photogenerated electron-hole separation and improved transfer of photogenerated charge carriers were responsible for the increased photocatalytic activity of ZnFe2O4-TiO2 NTAs. This approach provides a simple method for synthesizing a variety of nanoparticle-modified one-dimensional nanomaterials.

引用

页码：12082 / 12087

页数：6

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