A hydrogen-initiated chemical epitaxial growth strategy for in-plane heterostructured photocatalyst
Authors/Creators
Jinqiang Zhang, Edith Cowan UniversityFollow
Yunguo Li
Xiaoli Zhao, Edith Cowan UniversityFollow
Huayang Zhang
Liang Wang
Haijun Chen
Shuaijun Wang, Edith Cowan UniversityFollow
Xinyuan Xu, Edith Cowan UniversityFollow
Lei Shi, Edith Cowan UniversityFollow
Lai-Chang Zhang, Edith Cowan UniversityFollow
Jean-Pierre Veder
Shiyong Zhao
Gareth Nealon
Mingbo Wu
Shaobin Wang
Hongqi Sun, Edith Cowan UniversityFollow
Abstract
© 2020 American Chemical Society. Integrating carbon nitride with graphene into a lateral heterojunction would avoid energy loss within the interlaminar space region on conventional composites. To date, its synthesis process is limited to the bottom-up method which lacks the targeting and homogeneity. Herein, we proposed a hydrogen-initiated chemical epitaxial growth strategy at a relatively low temperature for the fabrication of graphene/carbon nitride in-plane heterostructure. Theoretical and experimental analysis proved that methane via in situ generation from the hydrogenated decomposition of carbon nitride triggered the graphene growth along the active sites at the edges of confined spaces. With the enhanced electrical field from the deposited graphene (0.5%), the performances on selective photo-oxidation and photocatalytic water splitting were promoted by 5.5 and 3.7 times, respectively. Meanwhile, a 7720 μmol/h/g(graphene) hydrogen evolution rate was acquired without any cocatalysts. This study provides an top-down strategy to synthesize in-plane catalyst for the utilization of solar energy.
Document Type
Journal Article
Volume
14
Issue
12
Funding Information
Australian Research Council Edith Cowan University University of Western Australia Curtin University Australian Research Council LIEF grant
School
School of Engineering
RAS ID
32845
Grant Number
ARC Number : DP170104264, DP190103548, LE120100026
Grant Link
http://purl.org/au-research/grants/arc/DP170104264 http://purl.org/au-research/grants/arc/DP190103548
Copyright
subscription content
Publisher
American Chemical Society Publications
Related Publications
Zhang, J. (2021). Development of nanostructured photocatalysts for solar fuels production. https://ro.ecu.edu.au/theses/2403
Comments
Zhang, J., Li, Y., Zhao, X., Zhang, H., Wang, L., Chen, H., ... Sun, H. (2020). A hydrogen-initiated chemical epitaxial growth strategy for in-plane heterostructured photocatalyst. ACS Nano, 14(12), 17505-17514. https://doi.org/10.1021/acsnano.0c07934