Boosting the photo-induced charge transfer in melon by lengthening the melon chains through a facile regrowth approach

doi:10.1007/s12274-022-4896-z

IMR OpenIR

	Boosting the photo-induced charge transfer in melon by lengthening the melon chains through a facile regrowth approach
	Li, Tongtong 1,2; Wang, Shulan 1; Li, Li 3; Yu, Xiaohua 4; Zhu, Huaze 2; Feng, Ningdong 5; Rong, Ju 4; Yang, Yongqiang 2; Liu, Gang 2
通讯作者	Li, Li(lilicmu@alumni.cmu.edu) ; Yang, Yongqiang(yqyang@imr.ac.cn)
	2023-02-01
发表期刊	NANO RESEARCH
ISSN	1998-0124
卷号	16 期号:2 页码:2076-2084
摘要	Melon-derived carbon nitride photocatalysts are a kind of star layered materials applied in solar energy conversion. With in-plane pi orbitals of the heptazine subunits and their overlap along the melon chains being the most distinctive feature, the condition of melon chains is of great importance for the atomic and energy band structures of carbon nitride photocatalysts as well as their photo-activities. In principle, fragmentized melon chains in practical carbon nitride would lead to unfavorable structure disorder both in longitudinal and vertical directions, thus inhibiting the efficient transfer for photo-induced electrons and holes, respectively. Here, with a facile regrowth approach, that is to treat carbon nitride under the atmosphere containing C/N species, the melon chains in carbon nitride were experimentally lengthened, which was reflected by the regularly fraction variation of different nitrogen species derived from X-ray photoelectron spectroscopy (XPS) analysis. The prolonged melon chains led to dramatically improved in-plane structure order and boosted transfer of photo-induced electrons and holes, which were confirmed by the spontaneous photo-deposition of oxidants and reductants. The combination of this regrowth approach with homogenously distributed nitrogen vacancies resulted in much enhanced visible-light-responsive photoactivities. Besides, control experiments using nitrogen-vacancy-free carbon nitride and different C/N-contained precursors showed the compatibility as well as the critical factors for the lengthening effects of the regrowth approach. We hope that the facile but efficient regrowth approach could be widely adopted in melon-derived carbon nitride photocatalysts used for various applications.
关键词	carbon nitride melon chains structure order photocatalytic hydrogen evolution charge transfer charge separation
资助者	National Key R&D Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Young Talent Project of Shenyang National Laboratory for Materials Science ; IMR Introducing Outstanding Scholars project
DOI	10.1007/s12274-022-4896-z
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2021YFA1500800] ; National Natural Science Foundation of China[51825204] ; National Natural Science Foundation of China[52072379] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2022190] ; Young Talent Project of Shenyang National Laboratory for Materials Science ; IMR Introducing Outstanding Scholars project
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:001061332900032
出版者	TSINGHUA UNIV PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179183
专题	中国科学院金属研究所
通讯作者	Li, Li; Yang, Yongqiang
作者单位	1.Northeastern Univ, Dept Chem, Coll Sci, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Metal Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China 4.Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China 5.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom Mol Phys, Wuhan Ctr Magnet Resonance Key Lab Magnet Resonan, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Li, Tongtong,Wang, Shulan,Li, Li,et al. Boosting the photo-induced charge transfer in melon by lengthening the melon chains through a facile regrowth approach[J]. NANO RESEARCH,2023,16(2):2076-2084.
APA	Li, Tongtong.,Wang, Shulan.,Li, Li.,Yu, Xiaohua.,Zhu, Huaze.,...&Liu, Gang.(2023).Boosting the photo-induced charge transfer in melon by lengthening the melon chains through a facile regrowth approach.NANO RESEARCH,16(2),2076-2084.
MLA	Li, Tongtong,et al."Boosting the photo-induced charge transfer in melon by lengthening the melon chains through a facile regrowth approach".NANO RESEARCH 16.2(2023):2076-2084.