Notable light-free catalytic activity for pollutant destruction over flower-like BiOI microspheres by a dual-reaction-center Fenton-like process

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	Notable light-free catalytic activity for pollutant destruction over flower-like BiOI microspheres by a dual-reaction-center Fenton-like process
	Zhang, Lili; Jiang, Ning; Hu, Chun; Lyu, Lai; Yan, Dengbiao; Wang, Liang
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2018-10-01
卷号	527 页码:251-259
关键词	BiOI Fenton-like Light-free Dual reaction centers Pollutant destruction
ISSN号	0021-9797
文献子类	Article
英文摘要	BiOI is widely used as photocatalysts for pollutant removal, water splitting, CO2 reduction and organic transformation due to its excellent photoelectric properties. Here, we report for the first time that a light-free catalyst consisting of the flower-like BiOI microspheres (f-BiOI MSs) exposing (1 0 1) and (1 1 0) crystal planes prepared by a hydrothermal method in ethylene glycol environment can rapidly eliminate the refractory BPA within only similar to 3 min through a Fenton-like process. The reaction activity is 190 times higher than that of the conventional Fenton catalyst Fe2O3. A series of characterizations and experiments reveal the formation of the dual reaction centers on f-BiOI MSs. The electron-rich 0 centers efficiently reduce H2O2 to .OH, while the electron-poor oxygen vacancies capture electrons from the adsorbed pollutants and divert them to the electron-rich area during the Fenton-like reactions. By these processes, pollutants are degraded and mineralized quickly in a wide pH range. Our findings address the problems of the classical Fenton reaction and are useful for the development of efficient Fenton-like catalysts through constructing dual reaction centers. (C) 2018 Elsevier Inc. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41392]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
推荐引用方式 GB/T 7714	Zhang, Lili,Jiang, Ning,Hu, Chun,et al. Notable light-free catalytic activity for pollutant destruction over flower-like BiOI microspheres by a dual-reaction-center Fenton-like process[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2018,527:251-259.
APA	Zhang, Lili,Jiang, Ning,Hu, Chun,Lyu, Lai,Yan, Dengbiao,&Wang, Liang.(2018).Notable light-free catalytic activity for pollutant destruction over flower-like BiOI microspheres by a dual-reaction-center Fenton-like process.JOURNAL OF COLLOID AND INTERFACE SCIENCE,527,251-259.
MLA	Zhang, Lili,et al."Notable light-free catalytic activity for pollutant destruction over flower-like BiOI microspheres by a dual-reaction-center Fenton-like process".JOURNAL OF COLLOID AND INTERFACE SCIENCE 527(2018):251-259.