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Title: Growth study and photocatalytic properties of Co-doped tungsten oxide mesocrystals

Abstract

Cobalt-doped tungsten oxide mesocrystals with different morphologies have been successfully generated using a solvothermal method with tungsten hexachloride and cobalt chloride salts as precursors. The resulting mesocrystals were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, Brunauer-Emmet-Teller analysis of nitrogen sorptometer, and UV-vis diffuse reflectance spectroscopy. The photocatalytic properties of the cobalt-doped tungsten oxide mesocrystals were evaluated on the basis of their ability to degrade methyl orange in an aqueous solution under simulated sunlight irradiation. Results showed that the cobalt doping had obvious effect on the morphologies of the final products, and lenticular and blocky cobalt-doped tungsten oxide mesocrystals could be obtained with 1.0 wt.% and 2.0 wt.% cobalt doping, respectively. The cobalt-doped tungsten oxides exhibited superior photocatalytic activities to that of the undoped tungsten oxide. - Graphical abstract: Schematic illustrations of the growth of the bundled nanowires, lenticular mesocrystals, and blocky mesocrystals. Highlights: Black-Right-Pointing-Pointer Co-doped W{sub 18}O{sub 49} mesocrystals were synthesized using a solvothermal method. Black-Right-Pointing-Pointer The Co doping has obvious effect on the morphology of the final mesocrystals. Black-Right-Pointing-Pointer The Co-doped W{sub 18}O{sub 49} exhibited superior photocatalytic activity to the undoped W{sub 18}O{sub 49}.

Authors:
 [1];  [2];  [1];  [3]
  1. College of Logistics Engineering, Shanghai Maritime University, Shanghai 200135 (China)
  2. (China)
  3. College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061 (China)
Publication Date:
OSTI Identifier:
22163152
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 73; Journal Issue: Complete; 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 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AQUEOUS SOLUTIONS; COBALT; COBALT CHLORIDES; DOPED MATERIALS; FIELD EMISSION; METHYL ORANGE; PHOTOCATALYSIS; QUANTUM WIRES; SCANNING ELECTRON MICROSCOPY; SIMULATION; SPECTROSCOPY; TRANSMISSION ELECTRON MICROSCOPY; TUNGSTEN CHLORIDES; TUNGSTEN OXIDES; X-RAY DIFFRACTION

Citation Formats

Sun, Shibin, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Chang, Xueting, E-mail: xuetingchang@yahoo.cn, and Li, Zhenjiang. Growth study and photocatalytic properties of Co-doped tungsten oxide mesocrystals. United States: N. p., 2012. Web. doi:10.1016/J.MATCHAR.2012.08.005.
Sun, Shibin, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Chang, Xueting, E-mail: xuetingchang@yahoo.cn, & Li, Zhenjiang. Growth study and photocatalytic properties of Co-doped tungsten oxide mesocrystals. United States. doi:10.1016/J.MATCHAR.2012.08.005.
Sun, Shibin, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Chang, Xueting, E-mail: xuetingchang@yahoo.cn, and Li, Zhenjiang. Thu . "Growth study and photocatalytic properties of Co-doped tungsten oxide mesocrystals". United States. doi:10.1016/J.MATCHAR.2012.08.005.
@article{osti_22163152,
title = {Growth study and photocatalytic properties of Co-doped tungsten oxide mesocrystals},
author = {Sun, Shibin and College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061 and Chang, Xueting, E-mail: xuetingchang@yahoo.cn and Li, Zhenjiang},
abstractNote = {Cobalt-doped tungsten oxide mesocrystals with different morphologies have been successfully generated using a solvothermal method with tungsten hexachloride and cobalt chloride salts as precursors. The resulting mesocrystals were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, Brunauer-Emmet-Teller analysis of nitrogen sorptometer, and UV-vis diffuse reflectance spectroscopy. The photocatalytic properties of the cobalt-doped tungsten oxide mesocrystals were evaluated on the basis of their ability to degrade methyl orange in an aqueous solution under simulated sunlight irradiation. Results showed that the cobalt doping had obvious effect on the morphologies of the final products, and lenticular and blocky cobalt-doped tungsten oxide mesocrystals could be obtained with 1.0 wt.% and 2.0 wt.% cobalt doping, respectively. The cobalt-doped tungsten oxides exhibited superior photocatalytic activities to that of the undoped tungsten oxide. - Graphical abstract: Schematic illustrations of the growth of the bundled nanowires, lenticular mesocrystals, and blocky mesocrystals. Highlights: Black-Right-Pointing-Pointer Co-doped W{sub 18}O{sub 49} mesocrystals were synthesized using a solvothermal method. Black-Right-Pointing-Pointer The Co doping has obvious effect on the morphology of the final mesocrystals. Black-Right-Pointing-Pointer The Co-doped W{sub 18}O{sub 49} exhibited superior photocatalytic activity to the undoped W{sub 18}O{sub 49}.},
doi = {10.1016/J.MATCHAR.2012.08.005},
journal = {Materials Characterization},
issn = {1044-5803},
number = Complete,
volume = 73,
place = {United States},
year = {2012},
month = {11}
}