期刊
DALTON TRANSACTIONS
卷 43, 期 24, 页码 9255-9259出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3dt53621a
关键词
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资金
- National Natural Science Foundation of China [21322102, 21031005, 21231001]
- program for Changjiang Scholars and Innovative Research Team in University [IRT1207]
- Foundation for the Author of National Excellent Doctoral Dissertation of PR China [201039]
- Fok Ying Tung Education Foundation [131047]
- Program for New Century Excellent Talents in University [NCET-11-0573]
Bi(Mg3/8Fe2/8Ti3/8)O-3, a member of a small group of pure Bi3+ A site perovskites, exhibiting a high ferroelectric Curie point (T-c), was rapidly synthesized by a sample method of molten salt synthesis. The purity of Bi(Mg3/8Fe2/8Ti3/8)O-3 samples is directly affected by the reaction conditions such as the soaking temperature, and the heating and cooling rates. The as-prepared Bi(Mg3/8Fe2/8Ti3/8)O-3 particles are well-formed, cube-shaped single-crystals with sizes ranging from 200-300 nm. The chemical states of Bi and Fe ions are Bi3+ and Fe3+ in Bi(Mg3/8Fe2/8Ti3/8)O-3. UV-vis diffuse reflectance spectra and preliminary photocatalytic experiments indicate that the pure Bi3+ A site perovskite of Bi(Mg3/8Fe2/8Ti3/8)O-3 has a suitable energy bandgap (1.86 eV) and shows obvious photocatalytic activity for the decolorization of methyl blue under visible-light irradiation. The present work suggests potential future applications of Bi(Mg3/8Fe2/8Ti3/8)O-3 in photocatalysis and ferroelectric photovoltaic effects.
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