| Efficient Promotion of Anatase TiO2 Photocatalysis via Bifunctional Surface-Terminating Ti-O-B-N Structures | |
| Liu, Gang2,3; Sun, Chenghua1,3; Cheng, Lina3; Jin, Yonggang3; Lu, Haofeng2; Wang, Lianzhou3; Smith, Sean C.1; Lu, Gao Qing3; Cheng, Hui-Ming2 | |
| Corresponding Author | Smith, Sean C.(s.smith@uq.edu.au) |
| 2009-07-16 | |
| Source Publication | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| ISSN | 1932-7447 |
| Volume | 113Issue:28Pages:12317-12324 |
| Abstract | 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. |
| Funding Organization | External Cooperation Program of Chinese Academy of Sciences ; Ministry of Science and Technology China ; Australian Research Council |
| DOI | 10.1021/jp900511u |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | External Cooperation Program of Chinese Academy of Sciences[GJHZ200815] ; Ministry of Science and Technology China[2009CB220001] ; Australian Research Council[DP0666345] |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000268139500048 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/97267 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Smith, Sean C. |
| Affiliation | 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 |
| Recommended Citation 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. |
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