Green synthesis of hematite (α-Fe2O3) submicron particles

被引：33

作者：

Gupta, R. K. ^{[1
]}

Ghosh, K. ^{[1
]}

Dong, L. ^{[1
]}

Kahol, P. K. ^{[1
]}

机构：

[1] Missouri State Univ, Dept Phys Astron & Mat Sci, Springfield, MO 65897 USA

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 19期

基金：

美国国家科学基金会;

关键词：

Iron oxide; Morin transition; Ferromagnetic; Antiferromagnetic; NANORODS; FABRICATION; GROWTH; ARRAYS;

D O I：

10.1016/j.matlet.2010.07.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Iron oxide microparticles have been synthesized through a green technique using hydrogen peroxide under sunlight irradiation. The X-ray powder diffraction measurement shows that these particles are hematite (alpha-Fe2O3). The microstructure and particle size were investigated using scanning electron microscopy. The magnetic characterization shows the presence of Morin transition at about 258 K, which is very close to the normal value (263 K) of bulk hematite. These hematite particles show typical antiferromagnetic behavior at low temperature and weak ferromagnetic behavior at room temperature. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2132 / 2134

页数：3

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