Efficient Promotion of Anatase TiO2 Photocatalysis via Bifunctional Surface-Terminating Ti-O-B-N Structures

doi:10.1021/jp900511u

IMR OpenIR

	Efficient Promotion of Anatase TiO2 Photocatalysis via Bifunctional Surface-Terminating Ti-O-B-N Structures
	Liu, Gang 2,3; Sun, Chenghua 1,3; Cheng, Lina 3; Jin, Yonggang 3; Lu, Haofeng 2; Wang, Lianzhou 3; Smith, Sean C.1; Lu, Gao Qing 3; Cheng, Hui-Ming 2
通讯作者	Smith, Sean C.(s.smith@uq.edu.au)
	2009-07-16
发表期刊	JOURNAL OF PHYSICAL CHEMISTRY C
ISSN	1932-7447
卷号	113 期号:28 页码:12317-12324
摘要	The surface structures of doped semiconductor photocatalysts play a vital role in determining visible light absorbance, transfer and redox potentials of charge carriers, as well as the inhibition of recombination. We examine the photocatalysis of anatase TiO2 with surface terminating Ti-O-B-N structures from both experimental and computational perspectives. This codoped titania system shows much better photocatalytic activity in generating center dot OH radical species and degrading organic pollutants in comparison with B-doped anatase titania. We present indicative evidence that the Ti-O-B-N surface structures can exhibit bifunctionality in promoting photocatalysis, (i) supplying partially occupied localized states attributed to B-N coupling with spectral distribution that is advantageous for enhancing visible light absorption and (ii) acting as photocatalytic "hot sites" to support localization and separation of charge carriers at the surface. These results offer important implications for designing highly efficient photocatalysts based on codoping strategies.
资助者	External Cooperation Program of Chinese Academy of Sciences ; Ministry of Science and Technology China ; Australian Research Council
DOI	10.1021/jp900511u
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 ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000268139500048
出版者	AMER CHEMICAL SOC
引用统计	被引频次：113[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/321006/97267
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, Ctr Computat Mol Sci, Australia Inst Bioengn & Nanotechnol, St Lucia, Qld 4072, Australia 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Queensland, ARC Ctr Excellence Funct Nanomat, Sch Engn, St Lucia, Qld 4072, Australia
推荐引用方式 GB/T 7714	Liu, Gang,Sun, Chenghua,Cheng, Lina,et al. Efficient Promotion of Anatase TiO2 Photocatalysis via Bifunctional Surface-Terminating Ti-O-B-N Structures[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2009,113(28):12317-12324.
APA	Liu, Gang.,Sun, Chenghua.,Cheng, Lina.,Jin, Yonggang.,Lu, Haofeng.,...&Cheng, Hui-Ming.(2009).Efficient Promotion of Anatase TiO2 Photocatalysis via Bifunctional Surface-Terminating Ti-O-B-N Structures.JOURNAL OF PHYSICAL CHEMISTRY C,113(28),12317-12324.
MLA	Liu, Gang,et al."Efficient Promotion of Anatase TiO2 Photocatalysis via Bifunctional Surface-Terminating Ti-O-B-N Structures".JOURNAL OF PHYSICAL CHEMISTRY C 113.28(2009):12317-12324.