Iodine doped anatase TiO2 photocatalyst with ultra-long visible light response: correlation between geometric/electronic structures and mechanisms

doi:10.1039/b820816f

IMR OpenIR

	Iodine doped anatase TiO2 photocatalyst with ultra-long visible light response: correlation between geometric/electronic structures and mechanisms
	Liu, Gang 2,3; Sun, Chenghua 1,3; Yan, Xiaoxia 1; Cheng, Lina 1; Chen, Zhigang 2; Wang, Xuewen 2; Wang, Lianzhou 3; Smith, Sean C.1; Lu, Gao Qing (Max)3; Cheng, Hui-Ming 2
通讯作者	Smith, Sean C.(s.smith@uq.edu.au)
	2009
发表期刊	JOURNAL OF MATERIALS CHEMISTRY
ISSN	0959-9428
卷号	19 期号:18 页码:2822-2829
摘要	We 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.
资助者	External Cooperation Program of Chinese Academy of Sciences ; Ministry of Science and Technology China ; Australian Research Council
DOI	10.1039/b820816f
收录类别	SCI
语种	英语
资助项目	External Cooperation Program of Chinese Academy of Sciences[GJHZ200815] ; Ministry of Science and Technology China[2009CB220001] ; Australian Research Council ; [DP0666345]
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000265740600026
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：122[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/96454
专题	中国科学院金属研究所
通讯作者	Smith, Sean C.
作者单位	1.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
推荐引用方式 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.