Journal
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Volume 414, Issue -, Pages 27-36Publisher
ELSEVIER
DOI: 10.1016/j.molcata.2015.12.023
Keywords
Microwave-assisted hydrothermal method; In2O3/AgBr/Bi2WO6; Visible light response; Photocatalysis; Rhodamin B
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Funding
- National Natural Science Foundation of China [21376126]
- Natural Science Foundation of Heilongjiang Province, China [B201106]
- Scientific Research of Heilongjiang Province Educaton Department [12511592]
- Government of Heilongjiang Province Postdoctoral Grants, China [LBH-Z11108]
- Green Chemical Technology Key Laboratory of Heilongjiang Province College, China
- Postdoctoral Researchers in Heilongjiang Province of China Research Initiation Grant [LBH-Q13172]
- Qiqihar University Graduate Education [YJSCX2014-009X]
- Qiqihar University in College Students Academic Innovation Team
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The photocatalyst In2O3/AgBr/Bi2WO6 with visible light response was synthesized using microwave assisted hydrothermal method. The crystal structure, optical properties and surface morphologies of the products were characterized by XRD, UV-vis/DRS, SEM, TEM, HRTEM, XPS and N-2 adsorption-desorption tests. The results indicate that indium exists in the form of oxide and inhibits the growth of Bi2WO6 at (1 3 3) crystal plane. The In2O3/AgBr/Bi2WO6 composite consists of the particles piled up into flower-like spherical structures. In2O3/AgBr/Bi2WO6 exhibits high photocatalytic activity for the Rhodamin B (RhB) degradation under ultraviolet and visible light, and, also, shows steady photocatalytic performance after four times of recycling. Besides, the potential photocatalytic mechanism of In2O3/AgBr/Bi2WO6 was proposed according to the energy band structure of the composite, and the vital role of multi-pathway photogenerated electron migration during photocatalysis process was explained. (C) 2015 Elsevier B.V. All rights reserved.
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