Rapid synthesis, structure and photocatalysis of pure bismuth A-site perovskite of Bi(Mg sub(3/8)Fe sub(2/8)Ti sub(3/8))O sub(3)
Bi(Mg sub(3/8)Fe sub(2/8)Ti sub(3/8))O sub(3), a member of a small group of pure Bi super(3+) A site perovskites, exhibiting a high ferroelectric Curie point (T sub(c)), was rapidly synthesized by a sample method of molten salt synthesis. The purity of Bi(Mg sub(3/8)Fe sub(2/8)Ti sub(3/8))O sub(3) s...
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Published in | Dalton transactions : an international journal of inorganic chemistry Vol. 43; no. 24; pp. 9255 - 9259 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
01.05.2014
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Subjects | |
Online Access | Get full text |
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Summary: | Bi(Mg sub(3/8)Fe sub(2/8)Ti sub(3/8))O sub(3), a member of a small group of pure Bi super(3+) A site perovskites, exhibiting a high ferroelectric Curie point (T sub(c)), was rapidly synthesized by a sample method of molten salt synthesis. The purity of Bi(Mg sub(3/8)Fe sub(2/8)Ti sub(3/8))O sub(3) samples is directly affected by the reaction conditions such as the soaking temperature, and the heating and cooling rates. The as-prepared Bi(Mg sub(3/8)Fe sub(2/8)Ti sub(3/8))O sub(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 Bi super(3+) and Fe super(3+) in Bi(Mg sub(3/8)Fe sub(2/8)Ti sub(3/8))O sub(3). UV-vis diffuse reflectance spectra and preliminary photocatalytic experiments indicate that the pure Bi super(3+) A site perovskite of Bi(Mg sub(3/8)Fe sub(2/8)Ti sub(3/8))O sub(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(Mg sub(3/8)Fe sub(2/8)Ti sub(3/8))O sub(3) in photocatalysis and ferroelectric photovoltaic effects. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 |
ISSN: | 1477-9226 1477-9234 |
DOI: | 10.1039/c3dt53621a |