Promoted Photocharge Separation in 2D Lateral Epitaxial Heterostructure for Visible-Light-Driven CO<sub>2</sub> Photoreduction.

Wang, L; Zhao, X; Lv, D; Liu, C; Lai, W; Sun, C; Su, Z; Xu, X; Hao, W; Dou, SX; Du, Y

Promoted Photocharge Separation in 2D Lateral Epitaxial Heterostructure for Visible-Light-Driven CO<sub>2</sub> Photoreduction.

Wang, L Zhao, X Lv, D Liu, C Lai, W

Sun, C Su, Z Xu, X Hao, W Dou, SX Du, Y

Permalink

Publisher:: Wiley
Publication Type:: Journal Article
Citation:: Advanced materials (Deerfield Beach, Fla.), 2020, 32, (48), pp. e2004311
Issue Date:: 2020-12

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Accepted versionAdobe PDF (1.91 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Wang, L
dc.contributor.author	Zhao, X
dc.contributor.author	Lv, D
dc.contributor.author	Liu, C
dc.contributor.author	Lai, W https://orcid.org/0000-0002-8685-9662
dc.contributor.author	Sun, C
dc.contributor.author	Su, Z
dc.contributor.author	Xu, X
dc.contributor.author	Hao, W
dc.contributor.author	Dou, SX
dc.contributor.author	Du, Y
dc.date.accessioned	2021-03-07T23:11:01Z
dc.date.available	2021-03-07T23:11:01Z
dc.date.issued	2020-12
dc.identifier.citation	Advanced materials (Deerfield Beach, Fla.), 2020, 32, (48), pp. e2004311
dc.identifier.issn	0935-9648
dc.identifier.issn	1521-4095
dc.identifier.uri	http://hdl.handle.net/10453/146878
dc.description.abstract	Photocarrier recombination remains a big barrier for the improvement of solar energy conversion efficiency. For 2D materials, construction of heterostructures represents an efficient strategy to promote photoexcited carrier separation via an internal electric field at the heterointerface. However, due to the difficulty in seeking two components with suitable crystal lattice mismatch, most of the current 2D heterostructures are vertical heterostructures and the exploration of 2D lateral heterostructures is scarce and limited. Here, lateral epitaxial heterostructures of BiOCl @ Bi<sub>2</sub> O<sub>3</sub> at the atomic level are fabricated via sonicating-assisted etching of Cl in BiOCl. This unique lateral heterostructure expedites photoexcited charge separation and transportation through the internal electric field induced by chemical bonding at the lateral interface. As a result, the lateral BiOCl @ Bi<sub>2</sub> O<sub>3</sub> heterostructure demonstrates superior CO<sub>2</sub> photoreduction properties with a CO yield rate of about 30 µmol g<sup>-1</sup> h<sup>-1</sup> under visible light illumination. The strategy to fabricate lateral epitaxial heterostructures in this work is expected to provide inspiration for preparing other 2D lateral heterostructures used in optoelectronic devices, energy conversion, and storage fields.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Wiley
dc.relation.ispartof	Advanced materials (Deerfield Beach, Fla.)
dc.relation.isbasedon	10.1002/adma.202004311
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	02 Physical Sciences, 03 Chemical Sciences, 09 Engineering
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Promoted Photocharge Separation in 2D Lateral Epitaxial Heterostructure for Visible-Light-Driven CO<sub>2</sub> Photoreduction.
dc.type	Journal Article
utslib.citation.volume	32
utslib.location.activity	Germany
utslib.for	02 Physical Sciences
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	open_access	*
dc.date.updated	2021-03-07T23:11:00Z
pubs.issue	48
pubs.publication-status	Published
pubs.volume	32
utslib.citation.issue	48

Abstract:

Photocarrier recombination remains a big barrier for the improvement of solar energy conversion efficiency. For 2D materials, construction of heterostructures represents an efficient strategy to promote photoexcited carrier separation via an internal electric field at the heterointerface. However, due to the difficulty in seeking two components with suitable crystal lattice mismatch, most of the current 2D heterostructures are vertical heterostructures and the exploration of 2D lateral heterostructures is scarce and limited. Here, lateral epitaxial heterostructures of BiOCl @ Bi₂ O₃ at the atomic level are fabricated via sonicating-assisted etching of Cl in BiOCl. This unique lateral heterostructure expedites photoexcited charge separation and transportation through the internal electric field induced by chemical bonding at the lateral interface. As a result, the lateral BiOCl @ Bi₂ O₃ heterostructure demonstrates superior CO₂ photoreduction properties with a CO yield rate of about 30 µmol g^-1 h^-1 under visible light illumination. The strategy to fabricate lateral epitaxial heterostructures in this work is expected to provide inspiration for preparing other 2D lateral heterostructures used in optoelectronic devices, energy conversion, and storage fields.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/146878