期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 732, 期 -, 页码 43-51出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.10.092
关键词
BiOBr; FeWO4; Doxycycline; Photocatalytic; Degradation; Photogenerated carriers
资金
- Technology Department of Jilin province, China [20150101093C]
- Technology Department Key Research of Jilin province, China [20140204038SF]
Novel BiOBr/FeWO4 composite photocatalysts were fabricated using the solvothermal method to degrade doxycycline under visible light irradiation. The crystalline structures, morphology, chemical composition, chemical bonding, energy band gap and photocatalytic properties of the samples were characterized by XRD, SEM, TEM, EDS, XPS, FT-IR and UV-Vis DRS. The BiOBr/FeWO4 composite photocatalysts with different molar mass ratios exhibited higher photocatalytic degradation efficiency of doxycycline than pure BiOBr and FeWO4, and the best photocatalytic degradation performance of 90% in 1 h was found for BiOBr/FeWO4 (4: 1). XPS and FT-IR analyses revealed the elemental composition, corresponding hybrid orbitals and possible chemical bonds. The DRS results indicated that FeWO4 enhanced the light response range of BiOBr. The generation of O-2(-) and holes was promoted by inhibiting the recombination of photogenerated carriers, which could lead to the higher photocatalytic activity. (C) 2017 Published by Elsevier B.V.
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