期刊
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
卷 318, 期 -, 页码 14-24出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2015.11.024
关键词
Visible-light photocatalysis; Bismuth yttrium tungstate; Sol-gel; Hydrothermal; Resazurin; BiYWO6
资金
- ISF-ICORE program
- Grand Technion Energy Program
- Russel Berrie Nanotechnology Institute
BiYWO6 is considered to be a promising visible light-active photocatalyst, however, so far there were no reports on its preparation by low-temperature routes. In this work, BiYWO6 was synthesized by sol-gel and by hydrothermal routes for the first time. Its photocatalytic visible light activity was evaluated by following the degradation of resazurin (Rz) while decoupling between photocatalysis, photosensitization and photolysis. The various preparation routes yielded different morphologies which resulted not only in different optical properties but also in different tendencies to form the stable intermediate product resorufin. These low-temperature methods pave the way for the fabrication of well-adhered Bi2-xYxWO6 electrodes. (C) 2015 Elsevier B.V. All rights reserved.
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