Structure evolution and photocatalytic activity of BiFeO3 powders synthesized by hydrothermal decomposition of metal-EDTA complexes
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Abstract
In the paper, the formation mechanism for pure phase BiFeO3 (BFO) in an EDTA-assisted hydrothermal process with the presence of NaNO2 was investigated in detail. The analysis revealed that the hydrothermal decomposition of Fe-EDTA complexes with the presence of NaNO2 intensely influenced both the crystal structure and morphology of BFO powders. Moreover, pure BFO particles exhibited efficient photocatalytic activity under visible-light irradiation, suggesting their promising applications as photocatalysts.
Keywords
Photocatalytic Activity NaNO2 Bi2O3 BiFeO3 EDTA ComplexNotes
Acknowledgments
Financial support by Natural Science Basis Research Plan in Shaanxi Province of China (Program No. 2011JM6001), Specialized Research Fund for the Doctoral Program of Higher Education (No. 20110201120003), China Postdoctoral Science Foundation (Grant No:20110491653), the National Basic Research Program of China under Grant No. 2009CB623306 and the Fundamental Research Funds for the Central Universities of China (No. XJJ20100148 & 2011JDHZ10), is gratefully acknowledged.
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