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Skin B/N-doped anatase TiO2 {001} nanoflakes for visible-light photocatalytic water oxidation

文献类型：期刊论文

作者Deng, Guoqiang1,2; Kang, Xiangdong1; Yang, Yongqiang1,2; Wang, Lianzhou3; Liu, Gang1,2
刊名JOURNAL OF COLLOID AND INTERFACE SCIENCE
出版日期2023-11-01
卷号649页码:140-147
关键词Visible light absorption Nanoflakes Transport distance Photocatalytic water oxidation Red TiO2
ISSN号0021-9797
DOI10.1016/j.jcis.2023.06.046
通讯作者Yang, Yongqiang(yqyang@imr.ac.cn) ; Liu, Gang(gangliu@imr.ac.cn)
英文摘要The limited visible-light-responsive photoactivities of most doped wide-bandgap photocatalysts with widened absorption range have long been the obstacles for the efficient conversion of solar energy to chemical energy by photocatalysis. The weak transport ability of visible-light-induced low-energy charge carriers, and numerous recombination centers arising from the energy-band modifiers along the transport path are two major factors responsible for such a mismatch. A potential solution is to shorten the transport path of photo-induced charges in well-modulated light absorbers with low-dimensional structure and the spatially concentrated dopants underneath their surfaces. As a proof of concept, skin B/N-doped red anatase TiO2 {001} nanoflakes with the absorption edge up to 675 nm were synthesized in this study. Experimental results revealed that boron dopants in the TiO2 nanoflakes from the hydrolysis of nanosized TiB2 played a crucial role in controlling nitrogen doping in the surface layer of the nanoflakes. As visible light excitation occurs at the surface layer, the photons can be sufficiently absorbed by the formed energy levels at the surface layers, and the photogenerated charge carriers can effectively migrate to the surface, thus leading to efficient visible-light-responsive photocatalytic oxygen evolution activity from water oxidation.
资助项目National Key R & D Program of China[2021YFA1500800] ; National Natural Science Foundation of China[52072379] ; National Natural Science Foundation of China[51825204] ; National Natural Science Foundation of China[52120105003] ; Youth Innovation~Promotion Association of the Chinese Academy of Sciences[2022190] ; International Partnership Program of Chinese Academy of Sciences[174321KYSB20200005]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:001032908100001
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
资助机构National Key R & D Program of China ; National Natural Science Foundation of China ; Youth Innovation~Promotion Association of the Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/178609]  
专题金属研究所_中国科学院金属研究所
通讯作者Yang, Yongqiang; Liu, Gang
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
3.Univ Queensland, Nanomat Ctr, Sch Chem Engn & AIBN, Brisbane, Qld 4072, Australia
推荐引用方式
GB/T 7714		 Deng, Guoqiang,Kang, Xiangdong,Yang, Yongqiang,et al. Skin B/N-doped anatase TiO2 {001} nanoflakes for visible-light photocatalytic water oxidation[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2023,649:140-147.
APA Deng, Guoqiang,Kang, Xiangdong,Yang, Yongqiang,Wang, Lianzhou,&Liu, Gang.(2023).Skin B/N-doped anatase TiO2 {001} nanoflakes for visible-light photocatalytic water oxidation.JOURNAL OF COLLOID AND INTERFACE SCIENCE,649,140-147.
MLA Deng, Guoqiang,et al."Skin B/N-doped anatase TiO2 {001} nanoflakes for visible-light photocatalytic water oxidation".JOURNAL OF COLLOID AND INTERFACE SCIENCE 649(2023):140-147.

入库方式： OAI收割

来源：金属研究所

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