First hydrothermal synthesis of Bi5O7Br and its photocatalytic properties for molecular oxygen activation and RhB degradation

	First hydrothermal synthesis of Bi5O7Br and its photocatalytic properties for molecular oxygen activation and RhB degradation
	Su, YR; Ding, CH; Dang, YL; Wang, H; Ye, LQ; Jin, XL; Xie, HQ; Liu, C; Wang H(王会)
刊名	APPLIED SURFACE SCIENCE
	2015
卷号	346 页码:311-316
关键词	Bi5O7Br Molecular oxygen activation Photocatalysis Bismuth-rich strategy
英文摘要	Comparing with BiOX (X= Cl, Br, I), BixOyXz as the newest bismuth-based photocatalysts have more appropriate conduction band position. And so, they can be used to active molecular oxygen. In this paper, Bi5O(7)Br, a new BixOzXz semiconductor photocatalyst was firstly synthesized by via hydromel method. It was characterized by X-ray diffraction (XRD), UV-visible diffused reflectance spectra (DRS), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), transmission electron microscope (TEM) and the corresponding selected-area electron diffraction (SAED) pattern. It can be found that the crystal structure and morphology are same with Bi5O7I. The size of a single rod is about 2 mu m in width and 50 mu m in length. As-synthesized Bi(5)o(7)Br can effectively activate molecular oxygen to generate superoxide radical (O-2(center dot-)) and hydroxyl radical ((OH)-O-center dot) under UV-vis light irradiation. And it also showed high photocatalytic activity than BiOBr for the degradation of dyes. Thus, it can be seen, the appearance of Bi5O7Br photocatalysis enriched the bismuth-rich strategy of Bi-O-X photocatalysts. (C) 2015 Elsevier B.V. All rights reserved.
学科主题	Chemistry; Materials Science; Physics
类目[WOS]	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
收录类别	SCI ; EI
WOS记录号	WOS:000355017000041
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228494]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Su, YR,Ding, CH,Dang, YL,et al. First hydrothermal synthesis of Bi5O7Br and its photocatalytic properties for molecular oxygen activation and RhB degradation[J]. APPLIED SURFACE SCIENCE,2015,346:311-316.
APA	Su, YR.,Ding, CH.,Dang, YL.,Wang, H.,Ye, LQ.,...&王会.(2015).First hydrothermal synthesis of Bi5O7Br and its photocatalytic properties for molecular oxygen activation and RhB degradation.APPLIED SURFACE SCIENCE,346,311-316.
MLA	Su, YR,et al."First hydrothermal synthesis of Bi5O7Br and its photocatalytic properties for molecular oxygen activation and RhB degradation".APPLIED SURFACE SCIENCE 346(2015):311-316.