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Photoluminescence characteristics of TiO2 and their relationship to the photoassisted reaction of water/methanol mixture
Shi, Jianying; Chen, Jun; Feng, Zhaochi; Chen, Tao; Lian, Yuxiang; Wang, Xiuli; Li, Can
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2007-01-18
DOI10.1021/jp065744z
Volume111Issue:2Pages:693-699
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordANATASE TIO2 ; PHOTOCATALYTIC ACTIVITY ; HETEROGENEOUS PHOTOCATALYSIS ; CRYSTAL-STRUCTURE ; TITANIUM-DIOXIDE ; ROOM-TEMPERATURE ; SINGLE-CRYSTALS ; UV RAMAN ; IN-SITU ; DEFECTS
AbstractThis work investigated the photoluminescence characteristics of TiO2 and discussed the relationship between the photoluminescence features of TiO2 and the photoassisted reaction of water/methanol mixture. It is found that anatase TiO2 displays a visible luminescence band centered at about 505 nm and rutile TiO2 mainly shows a near-infrared luminescence band centered at about 835 nm, which are respectively ascribed to the oxygen vacancies in anatase TiO2 and the intrinsic defects in rutile TiO2. The visible luminescence band is easily quenched by the Pt deposited on the surface of TiO2, while the near-infrared luminescence band is hardly influenced by the deposited Pt. It is suggested that the excited electrons trapped in the oxygen vacancies of anatase are facilely transferred to Pt to contribute to the photoassisted reaction, but the electrons trapped in the intrinsic defects of rutile are not.
Language英语
WOS IDWOS:000245005300031
Citation statistics
Cited Times:269[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140565
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Shi, Jianying,Chen, Jun,Feng, Zhaochi,et al. Photoluminescence characteristics of TiO2 and their relationship to the photoassisted reaction of water/methanol mixture[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2007,111(2):693-699.
APA Shi, Jianying.,Chen, Jun.,Feng, Zhaochi.,Chen, Tao.,Lian, Yuxiang.,...&Li, Can.(2007).Photoluminescence characteristics of TiO2 and their relationship to the photoassisted reaction of water/methanol mixture.JOURNAL OF PHYSICAL CHEMISTRY C,111(2),693-699.
MLA Shi, Jianying,et al."Photoluminescence characteristics of TiO2 and their relationship to the photoassisted reaction of water/methanol mixture".JOURNAL OF PHYSICAL CHEMISTRY C 111.2(2007):693-699.
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