ICCAS OpenIR
Probing paramagnetic species in titania-based heterogeneous photocatalysis by electron spin resonance (ESR) spectroscopy-A mini review
Wang, Zhaohui1,2; Ma, Wanhong1; Chen, Chuncheng1; Ji, Hongwei1; Zhao, Jincai1
2011-06-01
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume170Issue:2-3Pages:353-362
AbstractMany 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.
KeywordPhotocatalysis Electron Spin Resonance (Esr) Spin Trap Organoperoxy Radical n Doped-tio2
DOI10.1016/j.cej.2010.12.002
Indexed BySCI
Language英语
WOS IDWOS:000292947200003
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:140[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72828
Collection中国科学院化学研究所
Corresponding AuthorZhao, Jincai
Affiliation1.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
Recommended Citation
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.
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