期刊
CERAMICS INTERNATIONAL
卷 42, 期 14, 页码 15780-15786出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2016.07.043
关键词
Titanium dioxide nanofibers; Bismuth oxyiodide; Photocatalysts; Heterojunction
资金
- National Natural Science Foundation of China [41472232, 51572245]
- Prospective Basic Research Project of China Waterborne Transport Research Institute [WTI61607]
In this study, bismuth oxyiodide/titanium dioxide (BiOI/TiO2) heterostructures with different molar ratios of Bi and Ti were synthesized by electrospinning and hydrothermal methods. The samples thus synthesized were characterized by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy (TEM), high-resolution TEM, X-ray photoelectron spectroscopy, and ultraviolet visible diffuse reflectance spectroscopy. The results confirmed the presence of the BiOI/TiO2 heterojunction with Bi/Ti molar ratios of 0.20-1 by electrospinning and hydrothermal methods. Photocatalytic activity was also evaluated by the degradation of methylene blue (MB) under visible-light irradiation. The 80% BiOI/TiO2 heterostructure exhibited the best photocatalytic activity for the degradation of MB under visible-light irradiation. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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