Synthesis of α-Fe2O3/TiO2 nanotube arrays for photoelectro-Fenton degradation of phenol

被引：122

作者：

Cong, Yanqing ^{[1
]}

Li, Zhe ^{[1
]}

Zhang, Yi ^{[1
]}

Wang, Qi ^{[1
]}

Xu, Qian ^{[1
]}

机构：

[1] Zhejiang Gongshang Univ, Coll Environm Sci & Engn, Hangzhou 310012, Zhejiang, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2012年 / 191卷

基金：

美国国家科学基金会;

关键词：

alpha-Fe2O3/TiO2; nanotubes; alpha-Fe2O3; nanoparticles; Photoelectro-Fenton; Visible light; Phenol degradation; DOPED DIAMOND ANODES; ELECTRO-FENTON; PHOTOCATALYTIC PROPERTIES; AQUEOUS-MEDIUM; TIO2; NANOPARTICLES; NANOSTRUCTURES; 4-CHLOROPHENOL; OXIDATION; PLATINUM;

D O I：

10.1016/j.cej.2012.03.031

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Developing new nanophotocatalysts and identifying their roles are highly attractive in environmental protection and energy utilization. Photoelectro-Fenton process is an environmentally friendly technology and has a wide application in the control of environmental pollutants. However, efficient nanophotocatalysts responsive to visible light are still few. In this work, we have successfully synthesized a uniformly dispersed alpha-Fe2O3/TiO2 nanotubes hetero-nanostructure by electrochemical deposition method for the degradation of phenol. Compared with the separate alpha-Fe2O3 nanoparticles and TiO2 nanotubes, the composite alpha-Fe2O3/TiO2 nanotubes electrodes were more effective in the photoelectro-Fenton degradation of phenol and a 100% removal efficiency of phenol was obtained after 60 min treatment. The composite alpha-Fe2O3/TiO2 electrodes showed an enhanced absorbance in visible light region and had good stability to photoelectro-Fenton reactions. The role of alpha-Fe2O3 nanoparticles in various Fenton-related processes were systematically investigated. The results indicate that alpha-Fe2O3/TiO2 nanotubes are promising material for pollution prevention. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：356 / 363

页数：8

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