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3981828 
Journal Article 
Fabrication of Ag/AgBr/Ga2O3 heterojunction composite with efficient photocatalytic activity 
Liu, Q; Yu, Z; Li, M; Hou, Y; Sun, Lei; Wang, Li; Peng, Z; Chen, D; Liu, Y 
2017 
1 
Molecular Catalysis
ISSN: 2468-8231 
432 
57-63 
WOS:000400559700008 
A novel Ag/AgBr/Ga2O3 composite with heterojunction microstructure was synthesized by using chemical deposition followed by UV reduction method. High resolution transmission electron microscopy showed that Ga2O3 microparticles were tightly attached with Ag/AgBr to form a heterojunction. UV-vis diffuse reflectance spectra revealed that light response capability of Ga2O3 was enhanced significantly when combined with Ag/AgBr. The degradation efficiency of methyl orange within 30 min under UV light irradiation with Ag/AgBr/Ga2O3, Ag/AgBr and Ga2O3 were 89%, 74% and 48%, respectively. Ag/AgBr/Ga2O3 not only showed excellent photocatalytic activity under UV light, but also exhibited efficient photocatalysis capacity under visible light. Furthermore, the mechanism of charge separation in the heterojunction under UV light irradiation was proposed. (C) 2017 Elsevier B.V. All rights reserved. 
Semiconductors; Ag/AgBr/Ga2O3; Heterojunction; Photocatalysis; Composite materials; Microstructure