Efficient visible light photocatalytic NOx removal with cationic Ag clusters-grafted (BiO)(2)CO3 hierarchical superstructures

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Efficient visible light photocatalytic NOx removal with cationic Ag clusters-grafted (BiO)(2)CO3 hierarchical superstructures
	Dong, Fan; Zhang, Yuxin; Feng, Xin; Zhang, Wendong; Deng, Hua; Ni, Zilin
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2017-01-15
卷号	322 期号:0 页码:223-232
关键词	Hierarchical Superstructure Cluster Interfacial Charge Transfer Visible Light Photocatalysis Air Purification
英文摘要	A facile method was developed to graft cationic Ag clusters on (BiO)(2)CO3 hierarchical superstructures (BHS) surface to improve their visible light activity. Significantly, the resultant Ag clusters-grafted BHS displayed a highly enhanced visible light photocatalytic performance for NOx removal due to the direct interfacial charge transfer (IFCT) from BHS to. Ag clusters. The chemical and coordination state of the cationic Ag clusters was determined with the extended X-ray absorption fine structure (EXAFS) and a theoretical structure model was proposed for this unique Ag clusters. The charge transfer process and the dominant reactive species (.OH) were revealed on the basis of electron spin resonance (ESR) trapping. A new photocatalysis mechanism of Ag clusters-grafted BHS under visible light involving IFCT process was uncovered. In addition, the cationic Ag clusters-grafted BHS also demonstrated high photochemical and structural stability under repeated photocatalysis runs. The perspective of enhancing photocatalysis through combination of microstructural optimization and IFCT could provide a new avenue for the developing efficient visible light photocatalysts. (C) 2016 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39625]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
推荐引用方式 GB/T 7714	Dong, Fan,Zhang, Yuxin,Feng, Xin,et al. Efficient visible light photocatalytic NOx removal with cationic Ag clusters-grafted (BiO)(2)CO3 hierarchical superstructures[J]. JOURNAL OF HAZARDOUS MATERIALS,2017,322(0):223-232.
APA	Dong, Fan,Zhang, Yuxin,Feng, Xin,Zhang, Wendong,Deng, Hua,&Ni, Zilin.(2017).Efficient visible light photocatalytic NOx removal with cationic Ag clusters-grafted (BiO)(2)CO3 hierarchical superstructures.JOURNAL OF HAZARDOUS MATERIALS,322(0),223-232.
MLA	Dong, Fan,et al."Efficient visible light photocatalytic NOx removal with cationic Ag clusters-grafted (BiO)(2)CO3 hierarchical superstructures".JOURNAL OF HAZARDOUS MATERIALS 322.0(2017):223-232.