Ultralight biodegradable 3D-g-C<inf>3</inf>N<inf>4</inf> aerogel for advanced oxidation water treatment driven by oxygen delivery channels and triphase interfaces

Huang, Q; Wang, C; Hao, D; Wei, W; Wang, L; Ni, BJ

Ultralight biodegradable 3D-g-C<inf>3</inf>N<inf>4</inf> aerogel for advanced oxidation water treatment driven by oxygen delivery channels and triphase interfaces

Huang, Q Wang, C Hao, D Wei, W

Wang, L Ni, BJ

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Journal of Cleaner Production, 2021, 288, pp. 1-8
Issue Date:: 2021-03-15

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Field	Value	Language
dc.contributor.author	Huang, Q
dc.contributor.author	Wang, C
dc.contributor.author	Hao, D
dc.contributor.author	Wei, W https://orcid.org/0000-0001-5613-337X
dc.contributor.author	Wang, L
dc.contributor.author	Ni, BJ
dc.date.accessioned	2022-05-12T05:49:03Z
dc.date.available	2022-05-12T05:49:03Z
dc.date.issued	2021-03-15
dc.identifier.citation	Journal of Cleaner Production, 2021, 288, pp. 1-8
dc.identifier.issn	0959-6526
dc.identifier.issn	0959-6526
dc.identifier.uri	http://hdl.handle.net/10453/157286
dc.description.abstract	The development of highly efficient and separation-free, low-cost photocatalysts have crucial prospect for sustainable wastewater treatment, because it is able to eliminate the hazards of organic pollutant with facile operation. However, the relatively high cost of previous photocatalysts highly obstructs the application of these materials. Herein, we report a cost-effective and distinct konjac/graphitic carbon nitride (KCN) aerogel, which has superior performance for advanced oxidation water treatment. The abundant porous structure of the ultralight aerogel ensures the rapid adsorption of pollutants, which is much helpful for the further photodegradation process. During the working process, the aerogel is half submerged in pollutant solution and half exposed in air, forming a distinctive gas-solid-liquid triphase system, where oxygen can be rapidly delivered into the solution via the porous channels, boosting the generation of hydroxyl and superoxide radicals. Meanwhile, the aerogel structure can separate the g-C3N4, obstruct its stacking, as well as improve the light absorption rate. The synthesis, utilization and readily biodegradable treatment of the KCN aerogels are all green and eco-friendly, which is extremely constructive for strategies to develop novel highly efficient photocatalytic materials.
dc.language	English
dc.publisher	Elsevier
dc.relation.ispartof	Journal of Cleaner Production
dc.relation.isbasedon	10.1016/j.jclepro.2020.125091
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0907 Environmental Engineering, 0910 Manufacturing Engineering, 0915 Interdisciplinary Engineering
dc.subject.classification	Environmental Sciences
dc.title	Ultralight biodegradable 3D-g-C<inf>3</inf>N<inf>4</inf> aerogel for advanced oxidation water treatment driven by oxygen delivery channels and triphase interfaces
dc.type	Journal Article
utslib.citation.volume	288
utslib.for	0907 Environmental Engineering
utslib.for	0910 Manufacturing Engineering
utslib.for	0915 Interdisciplinary Engineering
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	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-05-12T05:49:00Z
pubs.publication-status	Published
pubs.volume	288

Abstract:

The development of highly efficient and separation-free, low-cost photocatalysts have crucial prospect for sustainable wastewater treatment, because it is able to eliminate the hazards of organic pollutant with facile operation. However, the relatively high cost of previous photocatalysts highly obstructs the application of these materials. Herein, we report a cost-effective and distinct konjac/graphitic carbon nitride (KCN) aerogel, which has superior performance for advanced oxidation water treatment. The abundant porous structure of the ultralight aerogel ensures the rapid adsorption of pollutants, which is much helpful for the further photodegradation process. During the working process, the aerogel is half submerged in pollutant solution and half exposed in air, forming a distinctive gas-solid-liquid triphase system, where oxygen can be rapidly delivered into the solution via the porous channels, boosting the generation of hydroxyl and superoxide radicals. Meanwhile, the aerogel structure can separate the g-C3N4, obstruct its stacking, as well as improve the light absorption rate. The synthesis, utilization and readily biodegradable treatment of the KCN aerogels are all green and eco-friendly, which is extremely constructive for strategies to develop novel highly efficient photocatalytic materials.

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http://hdl.handle.net/10453/157286