期刊
MATERIALS TODAY COMMUNICATIONS
卷 8, 期 -, 页码 134-138出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mtcomm.2016.07.003
关键词
Bismuth titanate compound; Photocatalyst; Microwave hydrothermal; Semiconducting materials
资金
- Academic Leaders Funding Scheme of Shaanxi University of Science Technology [XSG(4)005]
- Doctor Initiation Funding Scheme of Shaanxi University of Science Technology [BJ15-04]
- National Natural Science Foundation of China [51002092, 51372145]
A new bismuth titanate compound was synthesized by microwave hydrothermal method, using Bi(NO3)(3)center dot 5H(2)O and (NH4)(2)TiF6 as raw materials. The EDS result reveals that the new compound is composed of Bi, Ti, O and F elements. The XRD results indicate that increasing reaction temperature or prolonging reaction time is beneficial to the growth of the crystal. The SEM results show that the morphology of samples changes from sphere to irregular polyhedron with increase of reaction time. According to the UV-vis diffuse reflectance spectrum, the compound has a band gap of 2.76 eV. The photocatalytic performance of the sample synthesized at 180 degrees C for 10 min was evaluated by the decolorization of rhodamine B (RhB) under UV-light irradiation, and the result shows that the degradation rate of RhB is more than 90% after 60 min irradiation. (C) 2016 Elsevier Ltd. All rights reserved.
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