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Title: Effect of drying temperatures on structural performance and photocatalytic activity of BiOCl synthesized by a soft chemical method

Abstract

A group of BiOCl photocatalysts with different drying temperatures were prepared by a soft chemical method. The effects of drying temperatures on the crystalline phase, morphology, surface area and optical property of as-prepared samples were investigated in detail by XRD, SEM, N{sub 2} absorption–desorption and DRS. Moreover, their photocatalytic activities on the degradation of rhodamine B were evaluated under visible light irradiation. It was found that the sample dried at 120 °C had the best photocatalytic activity, which was mainly attributed to the highest exposing proportion of {001} facets correspond to BiOCl, largest BET and minimum bandgap. The degradation mechanism was explored that superoxide radicals were mainly contributed to the degradation of chromophore, however, holes and hydroxyl were mainly contributed to the photo degradation. Moreover, holes and hydroxyl dominated the degradation of RhB. - Graphical abstract: Holes, hydroxyl and superoxide radicals can attribute to the degradation process but take different degradation pathways. Superoxide radicals mainly contribute to the degradation of chromophore, however, holes and hydroxyl mainly contribute to the photo degradation. Display Omitted - Highlights: • BiOCl nanosheets were prepared by a soft chemical method. • Effect of drying temperatures on as-prepared BiOCl samples was studied. • The highest removalmore » efficiency of RhB was obtained over the sample dried at 120 °C.« less

Authors:
 [1];  [1];  [2]
  1. College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, Liaoning 113001 (China)
  2. Department of Environmental Science and Technology, Dalian Nationalities University, Dalian 116600 (China)
Publication Date:
OSTI Identifier:
22584168
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 239; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION; DESORPTION; EFFICIENCY; HYDROXIDES; IRRADIATION; NANOSTRUCTURES; OPTICAL PROPERTIES; PERFORMANCE; PHOTOCATALYSIS; REMOVAL; RHODAMINES; SCANNING ELECTRON MICROSCOPY; SUPEROXIDE RADICALS; SURFACE AREA; SURFACES; X-RAY DIFFRACTION

Citation Formats

Guang, Lu, E-mail: lu_g@163.com, Hui, Wang, and Xuejun, Zou. Effect of drying temperatures on structural performance and photocatalytic activity of BiOCl synthesized by a soft chemical method. United States: N. p., 2016. Web. doi:10.1016/J.JSSC.2016.04.039.
Guang, Lu, E-mail: lu_g@163.com, Hui, Wang, & Xuejun, Zou. Effect of drying temperatures on structural performance and photocatalytic activity of BiOCl synthesized by a soft chemical method. United States. doi:10.1016/J.JSSC.2016.04.039.
Guang, Lu, E-mail: lu_g@163.com, Hui, Wang, and Xuejun, Zou. Fri . "Effect of drying temperatures on structural performance and photocatalytic activity of BiOCl synthesized by a soft chemical method". United States. doi:10.1016/J.JSSC.2016.04.039.
@article{osti_22584168,
title = {Effect of drying temperatures on structural performance and photocatalytic activity of BiOCl synthesized by a soft chemical method},
author = {Guang, Lu, E-mail: lu_g@163.com and Hui, Wang and Xuejun, Zou},
abstractNote = {A group of BiOCl photocatalysts with different drying temperatures were prepared by a soft chemical method. The effects of drying temperatures on the crystalline phase, morphology, surface area and optical property of as-prepared samples were investigated in detail by XRD, SEM, N{sub 2} absorption–desorption and DRS. Moreover, their photocatalytic activities on the degradation of rhodamine B were evaluated under visible light irradiation. It was found that the sample dried at 120 °C had the best photocatalytic activity, which was mainly attributed to the highest exposing proportion of {001} facets correspond to BiOCl, largest BET and minimum bandgap. The degradation mechanism was explored that superoxide radicals were mainly contributed to the degradation of chromophore, however, holes and hydroxyl were mainly contributed to the photo degradation. Moreover, holes and hydroxyl dominated the degradation of RhB. - Graphical abstract: Holes, hydroxyl and superoxide radicals can attribute to the degradation process but take different degradation pathways. Superoxide radicals mainly contribute to the degradation of chromophore, however, holes and hydroxyl mainly contribute to the photo degradation. Display Omitted - Highlights: • BiOCl nanosheets were prepared by a soft chemical method. • Effect of drying temperatures on as-prepared BiOCl samples was studied. • The highest removal efficiency of RhB was obtained over the sample dried at 120 °C.},
doi = {10.1016/J.JSSC.2016.04.039},
journal = {Journal of Solid State Chemistry},
number = ,
volume = 239,
place = {United States},
year = {Fri Jul 15 00:00:00 EDT 2016},
month = {Fri Jul 15 00:00:00 EDT 2016}
}