A Promoted Charge Separation/Transfer System from Cu Single Atoms and C(3)N(4)Layers for Efficient Photocatalysis

doi:10.1002/adma.202003082

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	A Promoted Charge Separation/Transfer System from Cu Single Atoms and C(3)N(4)Layers for Efficient Photocatalysis
	Xiao, XD ; Gao, YT ; Zhang, LP ; Zhang, JC ; Zhang, Q ; Li, Q ; Bao, HL ; Zhou, J ; Miao, S ; Chen, N
刊名	ADVANCED MATERIALS
	2020
卷号	32 期号:33 页码:-
关键词	CARBON NITRIDE HYDROGEN EVOLUTION BENZENE PHENOL NANOSTRUCTURE OXIDATION CATALYST INSIGHT G-C3N4 WATER
ISSN号	0935-9648
DOI	10.1002/adma.202003082
文献子类	期刊论文
英文摘要	Establishing highly effective charge transfer channels in carbon nitride (C3N4) for enhancing its photocatalytic activity is still a challenging issue. Herein, for the first time, the engineering of C(3)N(4)layers with single-atom Cu bonded with compositional N (Cu-N-x) is demonstrated to address this challenge. The Cu-N(x)is formed by intercalation of chlorophyll sodium copper salt into a melamine-based supramolecular precursor followed by controlled pyrolysis. Two groups of Cu-N(x)are identified: in one group each of Cu atoms is bonded with three in-plane N atoms, while in the other group each of Cu atoms is bonded with four N atoms of two neighboring C(3)N(4)layers, thus forming both in-plane and interlayer charge transfer channels. Importantly, ultrafast spectroscopy has further proved that Cu-N(x)can greatly improve in-plane and interlayer separation/transfer of charge carriers and in turn boost the photocatalytic efficiency. Consequently, the catalyst exhibits a superior visible-light photocatalytic hydrogen production rate (approximate to 212 mu mol h(-1)/0.02 g catalyst), 30 times higher than that of bulk C3N4. Moreover, it leads to an outstanding conversion rate (92.3%) and selectivity (99.9%) for the oxidation of benzene under visible light.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32687]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Heilongjiang Univ, Minist Educ Peoples Republ China, Sch Chem & Mat Sci, Key Lab Funct Inorgan Mat Chem, Harbin 150080, Peoples R China 3.Kent State Univ, Dept Chem & Biochem, Kent, OH 44242 USA 4.Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Dept Chem Phys, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China 5.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 6.JEOL Beijing Co Ltd, 6 Zhongguancun Nansan St, Beijing 100080, Peoples R China 7.Univ Saskatchewan, Canadian Light Source, Saskatoon, SK S7N 2V3, Canada
推荐引用方式 GB/T 7714	Xiao, XD,Gao, YT,Zhang, LP,et al. A Promoted Charge Separation/Transfer System from Cu Single Atoms and C(3)N(4)Layers for Efficient Photocatalysis[J]. ADVANCED MATERIALS,2020,32(33):-.
APA	Xiao, XD.,Gao, YT.,Zhang, LP.,Zhang, JC.,Zhang, Q.,...&Fu, HG.(2020).A Promoted Charge Separation/Transfer System from Cu Single Atoms and C(3)N(4)Layers for Efficient Photocatalysis.ADVANCED MATERIALS,32(33),-.
MLA	Xiao, XD,et al."A Promoted Charge Separation/Transfer System from Cu Single Atoms and C(3)N(4)Layers for Efficient Photocatalysis".ADVANCED MATERIALS 32.33(2020):-.