Accelerated separation of photogenerated charge carriers and enhanced photocatalytic performance of g-C<inf>3</inf>N<inf>4</inf> by Bi<inf>2</inf>S<inf>3</inf> nanoparticles

Hao, Q; Xie, C; Huang, Y; Chen, D; Liu, Y; Wei, W; Ni, BJ

Accelerated separation of photogenerated charge carriers and enhanced photocatalytic performance of g-C<inf>3</inf>N<inf>4</inf> by Bi<inf>2</inf>S<inf>3</inf> nanoparticles

Hao, Q

Xie, C Huang, Y Chen, D Liu, Y

Wei, W Ni, BJ

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Publication Type:: Journal Article
Citation:: Chinese Journal of Catalysis, 2020, 41 (2), pp. 249 - 258
Issue Date:: 2020-02-01

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Field	Value	Language
dc.contributor.author	Hao, Q https://orcid.org/0000-0001-9981-7499	en_US
dc.contributor.author	Xie, C	en_US
dc.contributor.author	Huang, Y	en_US
dc.contributor.author	Chen, D	en_US
dc.contributor.author	Liu, Y https://orcid.org/0000-0001-6677-7961	en_US
dc.contributor.author	Wei, W	en_US
dc.contributor.author	Ni, BJ https://orcid.org/0000-0002-1129-7837	en_US
dc.date.issued	2020-02-01	en_US
dc.identifier.citation	Chinese Journal of Catalysis, 2020, 41 (2), pp. 249 - 258	en_US
dc.identifier.issn	1872-2067	en_US
dc.identifier.uri	http://hdl.handle.net/10453/137401
dc.description.abstract	© 2020 Dalian Institute of Chemical Physics, the Chinese Academy of Sciences Employing photothermal conversion to improve the photocatalytic activity of g-C3N4 is rarely reported previously. Herein, different ratios of g-C3N4/Bi2S3 heterojunction materials are synthesized by a facile ultrasonic method. Advanced characterizations such as X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy are employed to analyze the morphology and structure of the prepared materials. Compared with sole counterparts, the heterojunction materials CN-BiS-2 exhibit significantly enhanced photocatalytic performance, which is 2.05-fold as g-C3N4 and 4.42-fold as Bi2S3. A possible degradation pathway of methylene blue (MB) was proposed. Based on the photoproduced high-energy electrons and photothermal effect of Bi2S3, the transfer and separation of electron-hole pairs are greatly enhanced and more active species are produced. In addition, the relatively high utilization efficiency of solar energy has synergistic effect for the better photocatalytic performance.	en_US
dc.relation	http://purl.org/au-research/grants/arc/FT160100195
dc.relation.ispartof	Chinese Journal of Catalysis	en_US
dc.relation.isbasedon	10.1016/S1872-2067(19)63450-9	en_US
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Physical Chemistry	en_US
dc.title	Accelerated separation of photogenerated charge carriers and enhanced photocatalytic performance of g-C<inf>3</inf>N<inf>4</inf> by Bi<inf>2</inf>S<inf>3</inf> nanoparticles	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	41	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2022-02-01T00:00:00+1100
pubs.issue	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	41	en_US

Abstract:

© 2020 Dalian Institute of Chemical Physics, the Chinese Academy of Sciences Employing photothermal conversion to improve the photocatalytic activity of g-C3N4 is rarely reported previously. Herein, different ratios of g-C3N4/Bi2S3 heterojunction materials are synthesized by a facile ultrasonic method. Advanced characterizations such as X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy are employed to analyze the morphology and structure of the prepared materials. Compared with sole counterparts, the heterojunction materials CN-BiS-2 exhibit significantly enhanced photocatalytic performance, which is 2.05-fold as g-C3N4 and 4.42-fold as Bi2S3. A possible degradation pathway of methylene blue (MB) was proposed. Based on the photoproduced high-energy electrons and photothermal effect of Bi2S3, the transfer and separation of electron-hole pairs are greatly enhanced and more active species are produced. In addition, the relatively high utilization efficiency of solar energy has synergistic effect for the better photocatalytic performance.

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http://hdl.handle.net/10453/137401