Low-temperature hydrothermal synthesis of BiFeO3 microcrystals and their visible-light photocatalytic activity

被引：61
作者：
Wei, Jie [1 ]
Zhang, Chao [1 ]
Xu, Zhuo [1 ]
机构：
[1] Xi An Jiao Tong Univ, Key Lab Minist Educ, Elect Mat Res Lab, Xian 710049, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2012年 / 47卷 / 11期
基金：
中国博士后科学基金;
关键词：
Chemical synthesis; X-ray diffraction; Catalytic properties; NANOSIZED BISMUTH FERRITE; MAGNETIC-PROPERTIES; NANOPARTICLES;
D O I：
10.1016/j.materresbull.2012.06.068
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Pure BiFeO3 (BFO) microcrystals were synthesized at the temperature as low as 120 degrees C via a urea-assisted hydrothermal process. The crystal structure, morphology and photocatalytic property of BFO microcrystals were investigated. The analysis reveals that the hydrolysis of urea in the hydrothermal process plays a key role in the synthesis of pure phase BM microcrystals. FE-SEM and TEM results show that these BFO microcrystals present a nearly spherical microstructure, and specially exhibit superstructures consisting of large amounts of small particles with the size of 100-150 nm by further observation. Moreover, these BFO microcrystals exhibit efficient photocatalytic activity under visible-light irradiation, suggesting their promising applications as photocatalysts and related fields. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3513 / 3517
页数：5
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