Rapid synthesis, structure and photocatalysis of pure bismuth A-site perovskite of Bi(Mg3/8Fe2/8Ti3/8)O3

Zhang, Wenjuan and Chen, Jun and An, Xiaoxin and Wang, Qi and Fan, Longlong and Wang, Fangfang and Deng, Jinxia and Yu, Ranbo and Xing, Xianran (2014) Rapid synthesis, structure and photocatalysis of pure bismuth A-site perovskite of Bi(Mg3/8Fe2/8Ti3/8)O3. Dalton Transactions, 43 (24). pp. 9255-9259. ISSN 1477-9226

Abstract

Bi(Mg3/8Fe2/8Ti3/8)O3, a member of a small group of pure Bi3+ A site perovskites, exhibiting a high ferroelectric Curie point (Tc), was rapidly synthesized by a sample method of molten salt synthesis. The purity of Bi(Mg3/8Fe2/8Ti3/8) O3 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)O3 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)O3. UV-vis diffuse reflectance spectra and preliminary photocatalytic experiments indicate that the pure Bi3+ A site perovskite of Bi(Mg3/8Fe2/8Ti3/8)O3 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)O3 in photocatalysis and ferroelectric photovoltaic effects.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 18 Sep 2017 03:02
Last Modified: 20 Sep 2017 00:46
Uncontrolled Keywords: future applications; heating and cooling rates; molten salt synthesis; photocatalytic activities; reaction conditions; soaking temperature; UV-vis diffuse reflectance spectra; visible-light irradiation; magnesium and alloys; titanium and alloys; electricity, basic concepts and phenomena; chemical reactions; ceramics
Fields of Research : 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030303 Optical Properties of Materials
03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030306 Synthesis of Materials
03 Chemical Sciences > 0306 Physical Chemistry (incl. Structural) > 030601 Catalysis and Mechanisms of Reactions
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Identification Number or DOI: 10.1039/c3dt53621a
URI: http://eprints.usq.edu.au/id/eprint/31953

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