Preparation and visible-light photocatalytic activity of α-Fe2O3/γ-Fe2O3 magnetic heterophase photocatalyst

被引：46

作者：

Wei, Zhiwei ^{[1
]}

Wei, Xiucheng ^{[1
]}

Wang, Suiyan ^{[1
]}

He, Deyan ^{[1
]}

机构：

[1] Lanzhou Univ, Sch Phys Sci & Technol, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China

来源：

MATERIALS LETTERS | 2014年 / 118卷

基金：

中国国家自然科学基金;

关键词：

alpha-Fe2O3/gamma-Fe2O3; Heterophase junction; Nanocomposites; Magnetic materials; Photocatalysis; Visible light; FABRICATION; HETEROJUNCTION; PERFORMANCE; OXIDES; FILM;

D O I：

10.1016/j.matlet.2013.12.051

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic heterophase photocatalyst of alpha-Fe2O3/gamma-Fe2O3 nanorods was prepared by a facile thermal decomposition and redox method. The nanorods were about 100 nm in length and 20 nm in diameter, and well-structured heterophase junctions were formed between alpha-Fe2O3 and gamma-Fe2O3. Visible-light induced photodegradation of model dye rhodamine B was investigated by using the as-prepared alpha Fe2O3/gamma-Fe2O3 nanorods. The material exhibits a remarkably enhanced visible-light photocatalytic activity than the single-phase alpha-Fe2O3 or gamma-Fe2O3 owing to its well-structured interfaces and suitable band configuration. The existence of magnetic gamma-Fe2O3 facilitates the practical application of photocatalysts. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：107 / 110

页数：4

共 15 条

[11] Fabrication of a TiO2/carbon nanowall heterojunction and its photocatalytic ability [J].