Efficient Electron Transfer in g-C<inf>3</inf>N<inf>4</inf>/TiO<inf>2</inf> Heterojunction for Enhanced Photocatalytic CO<inf>2</inf> Reduction

Jiang, P; Yu, Y; Wang, K; Liu, W

Efficient Electron Transfer in g-C<inf>3</inf>N<inf>4</inf>/TiO<inf>2</inf> Heterojunction for Enhanced Photocatalytic CO<inf>2</inf> Reduction

Jiang, P Yu, Y

Wang, K Liu, W

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Publisher:: MDPI
Publication Type:: Journal Article
Citation:: Catalysts, 2024, 14, (6)
Issue Date:: 2024-06-01

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Field	Value	Language
dc.contributor.author	Jiang, P
dc.contributor.author	Yu, Y https://orcid.org/0000-0001-9592-8191
dc.contributor.author	Wang, K
dc.contributor.author	Liu, W
dc.date.accessioned	2025-01-21T01:47:58Z
dc.date.available	2025-01-21T01:47:58Z
dc.date.issued	2024-06-01
dc.identifier.citation	Catalysts, 2024, 14, (6)
dc.identifier.issn	2073-4344
dc.identifier.issn	2073-4344
dc.identifier.uri	http://hdl.handle.net/10453/183910
dc.description.abstract	Excessive emissions of carbon dioxide have led to the greenhouse effect and global warming. Reducing carbon dioxide into high-value-added chemicals through solar energy is a promising approach. Herein, a g-C3N4/TiO2 heterojunction photocatalyst with efficient electron transfer is designed for photocatalytic CO2 reduction. The CH4 (18.32 µmol·h−1·g−1) and CO (25.35 µmol·h−1·g−1) evolution rates of g-C3N4/TiO2 are higher than those of g-C3N4 and TiO2. The enhanced photocatalytic CO2 reduction performance is attributed to the efficient charge carrier transfer in the g-C3N4/TiO2 heterojunction. The electron transfer route was verified by in situ irradiated X-ray photoelectron spectroscopy (XPS). The photocatalytic CO2 reduction mechanism on g-C3N4/TiO2 was investigated by in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). This work provides a strategy for designing a polymer/metallic oxide heterojunction with efficient electron transfer for enhanced photocatalytic CO2 reduction.
dc.language	English
dc.publisher	MDPI
dc.relation.ispartof	Catalysts
dc.relation.isbasedon	10.3390/catal14060335
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0306 Physical Chemistry (incl. Structural)
dc.subject.classification	3406 Physical chemistry
dc.subject.classification	4004 Chemical engineering
dc.subject.classification	4018 Nanotechnology
dc.title	Efficient Electron Transfer in g-C<inf>3</inf>N<inf>4</inf>/TiO<inf>2</inf> Heterojunction for Enhanced Photocatalytic CO<inf>2</inf> Reduction
dc.type	Journal Article
utslib.citation.volume	14
utslib.for	0306 Physical Chemistry (incl. Structural)
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-01-21T01:47:56Z
pubs.issue	6
pubs.publication-status	Published
pubs.volume	14
utslib.citation.issue	6

Abstract:

Excessive emissions of carbon dioxide have led to the greenhouse effect and global warming. Reducing carbon dioxide into high-value-added chemicals through solar energy is a promising approach. Herein, a g-C3N4/TiO2 heterojunction photocatalyst with efficient electron transfer is designed for photocatalytic CO2 reduction. The CH4 (18.32 µmol·h−1·g−1) and CO (25.35 µmol·h−1·g−1) evolution rates of g-C3N4/TiO2 are higher than those of g-C3N4 and TiO2. The enhanced photocatalytic CO2 reduction performance is attributed to the efficient charge carrier transfer in the g-C3N4/TiO2 heterojunction. The electron transfer route was verified by in situ irradiated X-ray photoelectron spectroscopy (XPS). The photocatalytic CO2 reduction mechanism on g-C3N4/TiO2 was investigated by in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). This work provides a strategy for designing a polymer/metallic oxide heterojunction with efficient electron transfer for enhanced photocatalytic CO2 reduction.

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http://hdl.handle.net/10453/183910