期刊
CATALYSIS COMMUNICATIONS
卷 45, 期 -, 页码 30-33出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2013.10.020
关键词
BiOI; Photocatalytic; Flowerlike; Sunlight; Organic pollutants
资金
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University) [PLN 1136]
BiOI flowerlike hierarchical structure was synthesized via direct hydrolysis from BiI3 and characterized by powder X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (DRS), X-ray photoelectron spectroscopy (XPS) spectra, and transmission electron microscopy (TEM). As-synthesized BiOI showed higher photocatalytic activity in aqueous RhB photodegradation system than P25 TiO2 under simulated sunlight irradiation. The trapping experiments of active species and electron spin resonance (ESR) experiment during the photocatalytic reaction showed that the photocatalytic degradation of organic pollutants in BiOI system proceeds through direct hole transfer and O-2(center dot-) rather than center dot OH. (C) 2013 Elsevier B.V. All rights reserved.
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