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Title: Effect of solvents on morphology and photocatalytic activity of BiOBr synthesized by solvothermal method

Abstract

Graphical abstract: Display Omitted Highlight: ► BiOBr photocatalysts with various morphologies were synthesized. ► The choice of organic solvents was first extended to glycerol. ► Morphologies are greatly dependant on the solvent used. ► GR-mediated BiOBr has the highest photocatalytic activity. -- Abstract: BiOBr photocatalysts with various morphologies have been synthesized via a solvothermal method in ethanol-, ethylene glycol (EG)- and glycerol (GR)-mediated conditions, respectively. The effects of different solvents on the size and morphology of BiOBr crystal are investigated in detail. Viscosity of the solvents is believed to be a key factor in determining morphology of BiOBr crystal, which leads to the different formation mechanisms. In addition, it is found that the photocatalytic activities of BiOBr samples for the degradation of methyl orange (MO) under visible light irradiation are dependent on the solvent used in the synthesis. The differences in the photocatalytic activities are mainly attributed to the different morphologies, which further results in the difference in Brunauer–Emmett–Teller (BET) surface areas, bandgaps, the exposed crystal facets and porous structures.

Authors:
 [1];  [2]; ;  [1]
  1. School of Material Science and Engineering, China University of Mining and Technology, Xuzhou 221116 (China)
  2. School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116 (China)
Publication Date:
OSTI Identifier:
22215618
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CRYSTAL GROWTH; CRYSTALS; GLYCEROL; IRRADIATION; METHYL ORANGE; ORGANIC SOLVENTS; PHOTOCATALYSIS; SURFACE AREA; SYNTHESIS

Citation Formats

Liu, ZhangSheng, E-mail: zhangshengliu@hotmail.com, Wu, BianTao, Xiang, DongHu, and Zhu, YaBo. Effect of solvents on morphology and photocatalytic activity of BiOBr synthesized by solvothermal method. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.06.026.
Liu, ZhangSheng, E-mail: zhangshengliu@hotmail.com, Wu, BianTao, Xiang, DongHu, & Zhu, YaBo. Effect of solvents on morphology and photocatalytic activity of BiOBr synthesized by solvothermal method. United States. doi:10.1016/J.MATERRESBULL.2012.06.026.
Liu, ZhangSheng, E-mail: zhangshengliu@hotmail.com, Wu, BianTao, Xiang, DongHu, and Zhu, YaBo. Thu . "Effect of solvents on morphology and photocatalytic activity of BiOBr synthesized by solvothermal method". United States. doi:10.1016/J.MATERRESBULL.2012.06.026.
@article{osti_22215618,
title = {Effect of solvents on morphology and photocatalytic activity of BiOBr synthesized by solvothermal method},
author = {Liu, ZhangSheng, E-mail: zhangshengliu@hotmail.com and Wu, BianTao and Xiang, DongHu and Zhu, YaBo},
abstractNote = {Graphical abstract: Display Omitted Highlight: ► BiOBr photocatalysts with various morphologies were synthesized. ► The choice of organic solvents was first extended to glycerol. ► Morphologies are greatly dependant on the solvent used. ► GR-mediated BiOBr has the highest photocatalytic activity. -- Abstract: BiOBr photocatalysts with various morphologies have been synthesized via a solvothermal method in ethanol-, ethylene glycol (EG)- and glycerol (GR)-mediated conditions, respectively. The effects of different solvents on the size and morphology of BiOBr crystal are investigated in detail. Viscosity of the solvents is believed to be a key factor in determining morphology of BiOBr crystal, which leads to the different formation mechanisms. In addition, it is found that the photocatalytic activities of BiOBr samples for the degradation of methyl orange (MO) under visible light irradiation are dependent on the solvent used in the synthesis. The differences in the photocatalytic activities are mainly attributed to the different morphologies, which further results in the difference in Brunauer–Emmett–Teller (BET) surface areas, bandgaps, the exposed crystal facets and porous structures.},
doi = {10.1016/J.MATERRESBULL.2012.06.026},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}