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Atomic-scale Mott-Schottky heterojunctions of boron nitride monolayer and graphene as metal-free photocatalysts for artificial photosynthesis

Zhang, Ke-Xin, Su, Hui, Wang, Hong-Hui, Zhang, Jun-Jun, Zhao, Shu-Yu, Lei, Weiwei, Wei, Xiao, Li, Xin-Hao and Chen, Jie-Sheng 2018, Atomic-scale Mott-Schottky heterojunctions of boron nitride monolayer and graphene as metal-free photocatalysts for artificial photosynthesis, Advanced science, vol. 5, no. 7, pp. 1-8, doi: 10.1002/advs.201800062.

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Title Atomic-scale Mott-Schottky heterojunctions of boron nitride monolayer and graphene as metal-free photocatalysts for artificial photosynthesis
Author(s) Zhang, Ke-Xin
Su, Hui
Wang, Hong-Hui
Zhang, Jun-Jun
Zhao, Shu-Yu
Lei, WeiweiORCID iD for Lei, Weiwei orcid.org/0000-0003-2698-299X
Wei, Xiao
Li, Xin-Hao
Chen, Jie-Sheng
Journal name Advanced science
Volume number 5
Issue number 7
Article ID 1800062
Start page 1
End page 8
Total pages 8
Publisher Wiley
Place of publication London, Eng.
Publication date 2018-07
ISSN 2198-3844
Keyword(s) Mott–Schottky heterojunctions
boron nitride
graphene
photocatalysts
Summary Heterojunction photocatalysts at present are still suffering from the low charge separation/transfer efficiency due to the poor charge mobility of semiconductor‐based photocatalysts. Atomic‐scale heterojunction‐type photocatalysts are regarded as a promising and effective strategy to overcome the drawbacks of traditional photocatalysts for higher photoenergy conversion efficiencies. Herein, an atomic‐scale heterojunction composed of a boron nitride monolayer and graphene (h‐BN‐C/G) is constructed to significantly shorten the charge transfer path to promote the activation of molecular oxygen for artificial photosynthesis (exemplified with oxidative coupling of amines to imines). As the thinnest heterojunction, h‐BN‐C/G gives the highest conversion, which is eightfold higher than that of the mechanical mixture of graphene and boron nitride monolayers. h‐BN‐C/G exhibits a high turnover frequency value (4.0 mmol benzylamine g−1 h−1), which is 2.5‐fold higher than that of the benchmark metal‐free photocatalyst in the literature under even critical conditions.
Language eng
DOI 10.1002/advs.201800062
Field of Research 100708 Nanomaterials
091205 Functional Materials
100799 Nanotechnology not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2018, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30111858

Document type: Journal Article
Collections: Institute for Frontier Materials
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.