Probing paramagnetic species in titania-based heterogeneous photocatalysis by electron spin resonance (ESR) spectroscopy-A mini review

doi:10.1016/j.cej.2010.12.002

CORC > 化学研究所 > 中国科学院化学研究所

	Probing paramagnetic species in titania-based heterogeneous photocatalysis by electron spin resonance (ESR) spectroscopy-A mini review
	Wang, Zhaohui 1,2; Ma, Wanhong 1; Chen, Chuncheng 1; Ji, Hongwei 1; Zhao, Jincai 1
刊名	CHEMICAL ENGINEERING JOURNAL
	2011-06-01
卷号	170 期号:2-3 页码:353-362
关键词	Photocatalysis Electron Spin Resonance (Esr) Spin Trap Organoperoxy Radical n Doped-tio2
ISSN号	1385-8947
DOI	10.1016/j.cej.2010.12.002
英文摘要	Many paramagnetic species such as active surface sites, reactive oxygen species (ROS) and organic radicals derived from the photodegradation of organics were involved in the heterogeneous photocatalysis. Identification and characterization of these paramagnetic species are essentially conducted using electron spin resonance (ESR) techniques, which can provide a detailed understanding of the radical composition and structure on the basis of the unique feature of g, hyperfine, and superhyperfine tensors for each kind of radicals of interest. In the present review, the basic theoretical principles of the ESR technique and its application in the field of TiO2-based heterogeneous photocatalysis are generally summarized. Two experimental approaches typical of ESR-direct monitoring of paramagnetic species or sites and spin-trapping technique have been described with particular attention to the choices of spin traps. The general features of the ESR spectra of photoinduced charges, inorganic and organic radicals in photocatalytic events are presented and discussed. In addition, some remarks will be made about the use of ESR in revealing the origin of enhanced photocatalytic activities in the mixed phase titania (P25) and visible-light-response N-doped TiO2. (C) 2010 Elsevier BM. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000292947200003
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/72827]
专题	中国科学院化学研究所
通讯作者	Zhao, Jincai
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Photochem, Beijing 100190, Peoples R China 2.Donghua Univ, Coll Environm Sci & Engn, Shanghai 201620, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhaohui,Ma, Wanhong,Chen, Chuncheng,et al. Probing paramagnetic species in titania-based heterogeneous photocatalysis by electron spin resonance (ESR) spectroscopy-A mini review[J]. CHEMICAL ENGINEERING JOURNAL,2011,170(2-3):353-362.
APA	Wang, Zhaohui,Ma, Wanhong,Chen, Chuncheng,Ji, Hongwei,&Zhao, Jincai.(2011).Probing paramagnetic species in titania-based heterogeneous photocatalysis by electron spin resonance (ESR) spectroscopy-A mini review.CHEMICAL ENGINEERING JOURNAL,170(2-3),353-362.
MLA	Wang, Zhaohui,et al."Probing paramagnetic species in titania-based heterogeneous photocatalysis by electron spin resonance (ESR) spectroscopy-A mini review".CHEMICAL ENGINEERING JOURNAL 170.2-3(2011):353-362.