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Iodine doped anatase TiO2 photocatalyst with ultra-long visible light response: correlation between geometric/electronic structures and mechanisms
Liu, Gang2,3; Sun, Chenghua1,3; Yan, Xiaoxia1; Cheng, Lina1; Chen, Zhigang2; Wang, Xuewen2; Wang, Lianzhou3; Smith, Sean C.1; Lu, Gao Qing (Max)3; Cheng, Hui-Ming2
Corresponding AuthorSmith, Sean C.(s.smith@uq.edu.au)
2009
Source PublicationJOURNAL OF MATERIALS CHEMISTRY
ISSN0959-9428
Volume19Issue:18Pages:2822-2829
AbstractWe report that surface iodine doped TiO2 with coexisting atomic configurations of iodine dopant, I-O-I and I-O-Ti structures, exhibits an extended absorption edge up to 800 nm. Furthermore, photocatalytic activity investigations confirm the efficient generation of important oxidative species (OH)-O-center dot radicals in photocatalysis oxidation processes beyond 600 nm. It is theoretically found that iodine atoms prefer to be doped within the surface due to the strong I-O repulsion. I-doping in the surface led to little change in its intrinsic bandgap, but the distribution and occupation of localized states of iodine strongly depend on the surface iodine configurations. The latter is responsible for the wider range visible light response exhibited in anatase TiO2 with the coexistence of I-O-I and I-O-Ti structures. The coexistence of I-O-I and I-O-Ti structures can distinctly change the surface structure due to the release of local strain energies.
Funding OrganizationExternal Cooperation Program of Chinese Academy of Sciences ; Ministry of Science and Technology China ; Australian Research Council
DOI10.1039/b820816f
Indexed BySCI
Language英语
Funding ProjectExternal Cooperation Program of Chinese Academy of Sciences[GJHZ200815] ; Ministry of Science and Technology China[2009CB220001] ; Australian Research Council ; [DP0666345]
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000265740600026
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:110[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/96454
Collection中国科学院金属研究所
Corresponding AuthorSmith, Sean C.
Affiliation1.Univ Queensland, Australia Inst Bioengn & Nanotechnol, Ctr Computat Mol Sci, Brisbane, Qld 4072, Australia
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Univ Queensland, Sch Engn, ARC Ctr Excellence Funct Nanomat, Brisbane, Qld 4072, Australia
Recommended Citation
GB/T 7714
Liu, Gang,Sun, Chenghua,Yan, Xiaoxia,et al. Iodine doped anatase TiO2 photocatalyst with ultra-long visible light response: correlation between geometric/electronic structures and mechanisms[J]. JOURNAL OF MATERIALS CHEMISTRY,2009,19(18):2822-2829.
APA Liu, Gang.,Sun, Chenghua.,Yan, Xiaoxia.,Cheng, Lina.,Chen, Zhigang.,...&Cheng, Hui-Ming.(2009).Iodine doped anatase TiO2 photocatalyst with ultra-long visible light response: correlation between geometric/electronic structures and mechanisms.JOURNAL OF MATERIALS CHEMISTRY,19(18),2822-2829.
MLA Liu, Gang,et al."Iodine doped anatase TiO2 photocatalyst with ultra-long visible light response: correlation between geometric/electronic structures and mechanisms".JOURNAL OF MATERIALS CHEMISTRY 19.18(2009):2822-2829.
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