α-Fe2O3 nanostructures with different morphologies: Additive-free synthesis, magnetic properties, and visible light photocatalytic properties

被引：33

作者：

Xu, Yanyan ^{[1
]}

Zhang, Guoying ^{[1
]}

Du, Guixiang ^{[1
]}

Sun, Yaqiu ^{[1
]}

Gao, Dongzhao ^{[1
]}

机构：

[1] Tianjin Normal Univ, Tianjin Key Lab Struct & Performance Funct Mol, Lab Inorgan Organ Hybrid Funct Mat Chem, Minist Educ,Sch Chem, Tianjin 300387, Peoples R China

来源：

MATERIALS LETTERS | 2013年 / 92卷

基金：

中国国家自然科学基金;

关键词：

Hematite; Nanoparticles; Semiconductors; Magnetic materials; Photocatalytic property; NANOPARTICLES; NANOCRYSTALS; PARTICLES;

D O I：

10.1016/j.matlet.2012.10.101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hematite (alpha-Fe2O3) nanostructures with different morphologies have been synthesized by a simple ethylene glycol (EG)/H2O system using FeCl3 and urea as raw materials without adding any additives. Structure and morphology of the products were characterized by powder X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The results indicated that the as-prepared samples are alpha-Fe2O3 microflowers, nanospindles, nanoparticles and nanorhombohedra. The magnetic properties and visible light photocatalytic properties of the products were investigated. The magnetic hysteresis measurements showed interesting magnetic property evolution among these alpha-Fe2O3 products, which can be attributed to their superstructure or the shape anisotropy. The photocatalytic measurements indicated that the alpha-Fe2O3 samples exhibit good photocatalytic property for Rhodamine B. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：321 / 324

页数：4

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