CAS OpenIR  > 中科院上海应用物理研究所2011-2020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; Wang, JQ; Jiang, BJ; Tian, CG; Fu, HG
2020
Source PublicationADVANCED MATERIALS
ISSN0935-9648
Volume32Issue:33Pages:-
Subtype期刊论文
AbstractEstablishing 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.
KeywordCARBON NITRIDE HYDROGEN EVOLUTION BENZENE PHENOL NANOSTRUCTURE OXIDATION CATALYST INSIGHT G-C3N4 WATER
DOI10.1002/adma.202003082
Indexed BySCI ; EI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32687
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Heilongjiang Univ, Minist Educ Peoples Republ China, Sch Chem & Mat Sci, Key Lab Funct Inorgan Mat Chem, Harbin 150080, Peoples R China
2.Kent State Univ, Dept Chem & Biochem, Kent, OH 44242 USA
3.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
4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
5.JEOL Beijing Co Ltd, 6 Zhongguancun Nansan St, Beijing 100080, Peoples R China
6.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
7.Univ Saskatchewan, Canadian Light Source, Saskatoon, SK S7N 2V3, Canada
Recommended Citation
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):-.
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