期刊
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
卷 15, 期 3, 页码 2470-2480出版社
ESG
DOI: 10.20964/2020.03.09
关键词
BiVO4; Photocatalysis; LED visible light; Peroxymonosulfate; Methylene blue degradation
资金
- National Natural Science Foundation of China [51908485, 51608468]
- China Postdoctoral Science Foundation [2019T120194]
- University Science and Technology Program Project of Hebei Provincial Department of Education [QN2018258]
The enhancement of BiVO4 photocatalytic degradation of methylene blue (MB) through peroxymonosulfate (PMS) introduction was studied under LED light irradiation. The BiVO4 catalyst was prepared by the hydrothermal method, and its physicochemical properties were characterized through various surface means. The influencing factors on the MB decolorization, such as the PMS concentration, BiVO4 amount, initial solution pH value, and catalyst stability were determined. The results presented that the photocatalytic performance of BiVO4 for MB removal was effectively improved after adding the PMS in the photocatalysis system. Increasing BiVO4 and PMS dosages promoted the MB elimination, and the synergy process showed satisfactory MB decolorization effect from pH 4 to 10. Besides, the coupling system exhibited a good stability after the four recycles. Moreover, the reactive species were identified by radicals scavenging experiments, and the results displayed that the sulfate and hydroxyl radicals were in charge of the MB decomposition during this collaborative process.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据