Journal
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
Volume 16, Issue 6, Pages 1808-1812Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2013.06.020
Keywords
Photocatalyst; Bi2O3; Photocatalytic performance; Mechanism
Categories
Funding
- Science and Technology Department of Sichuan Province [2013JY0080]
- Education Department of Sichuan Province [11ZA27, 10ZA140]
- Research Fund Projects of Sichuan University of Science and Engineering [2011PY04, 2012PY05]
- Construct Program of the Discipline in Sichuan University of Science and Engineering
- Opening Project of the Key Laboratory of Green Catalysis of Sichuan Institutes of High Education [141202]
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In2O3/Bi2O3 composite photocatalysts with different In2O3 content were prepared using a pore impregnation method with Bi2O3 as the substrate. The composite photocatalysts exhibit enhanced photocatalytic activity compared to Bi2O3 for the degradation of aqueous methyl orange (MO) solution under solar irradiation. The samples were characterized in terms of BET surface area, X-ray diffraction (XRD), UV/Vis diffuse reflectance spectroscopy (DRS), X-ray photoelectron spectroscopy (XPS), and surface photovoltage (SPV). On the basis of the results, a mechanism is proposed to account for the enhanced photocatalytic activity of these In2O3/Bi2O3 composites. (C) 2013 Elsevier Ltd. All rights reserved.
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