Journal
APPLIED SURFACE SCIENCE
Volume 430, Issue -, Pages 165-175Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2017.07.190
Keywords
BiOI; Graphene; Visible light; Microwave hydrothermal
Categories
Funding
- National Natural Science Foundation of China [21576220]
- Shaanxi Natural Science Foundation [2017JQ2033]
- Natural Science Foundation of Shaanxi Provincial Department of Education [16JK1546]
- International Science Technology Cooperation Program of China [2015DFR50350]
- Innovation of Science and Technology Foundation from Xi'an University of Technology [2016CX014]
- Starting and Innovation Team Foundation of Xi'an University of Technology
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In the present paper, a novel composite of BiOI/rGO with excellent visible-light photocatalytic activity was successfully fabricated via very different simple, fast and mild rapid microwave hydrothermal method. The BiOI/rGO -1(BG-1) was donated as a simple chemical mechanical and the BiOI/rGO -2(BG-2) was donated as one-step rapid microwave hydrothermal method. The BG-1 were composed of the BiOI microspheres with a diameter of about 1 mu m and mixed heterogeneously with graphene. While, the BG-2 were consist of the BiOI nanoplates with the thickness of approximately 20 nm dispersed heterogeneously on the surface of rGO. The degradation of 40 mg/L methylene blue (MB) and 20 mg/L levofloxacin (LEV) under visible light irradiation can reach about 11 and 3 times than that of P25, respectively. Furthermore, the reactive species of hole was determined to dominant the photodegradation process. The intensive photocatlytic could ascribe to more effective electron transportation and separations, this conclusion was different with other studies. A possible photocatalytic mechanism of BG-2 was also proposed. (C) 2017 Elsevier B.V. All rights reserved.
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