Journal
MATERIALS RESEARCH BULLETIN
Volume 47, Issue 11, Pages 3513-3517Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2012.06.068
Keywords
Chemical synthesis; X-ray diffraction; Catalytic properties
Categories
Funding
- Natural Science Basis Research Plan in Shaanxi Province of China [2011JM6001]
- Specialized Research Fund for the Doctoral Program of Higher Education [20110201120003]
- China Postdoctoral Science Foundation [20110491653]
- National Basic Research Program of China [2009CB623306]
- Fundamental Research Funds for the Central Universities of China [XJJ20100148, 2011JDHZ10]
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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.
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