Divide and Conquer: A Novel Dual-Layered Hydrogel for Atmospheric Moisture Harvesting.

Feng, A; Onggowarsito, C; Mao, S; Qiao, GG; Fu, Q

Divide and Conquer: A Novel Dual-Layered Hydrogel for Atmospheric Moisture Harvesting.

Feng, A Onggowarsito, C

Mao, S

Qiao, GG Fu, Q

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Publisher:: WILEY-V C H VERLAG GMBH
Publication Type:: Journal Article
Citation:: ChemSusChem, 2023, 16, (14), pp. e202300137
Issue Date:: 2023-07-21

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Field	Value	Language
dc.contributor.author	Feng, A
dc.contributor.author	Onggowarsito, C https://orcid.org/0000-0002-8962-7971
dc.contributor.author	Mao, S https://orcid.org/0000-0002-4761-4670
dc.contributor.author	Qiao, GG
dc.contributor.author	Fu, Q https://orcid.org/0000-0002-4012-330X
dc.date.accessioned	2023-11-20T03:49:25Z
dc.date.available	2023-11-20T03:49:25Z
dc.date.issued	2023-07-21
dc.identifier.citation	ChemSusChem, 2023, 16, (14), pp. e202300137
dc.identifier.issn	1864-5631
dc.identifier.issn	1864-564X
dc.identifier.uri	http://hdl.handle.net/10453/173484
dc.description.abstract	Atmospheric water harvesting (AWH) has been recognized as a next-generation technology to alleviate water shortages in arid areas. However, the current AWH materials suffer from insufficient water adsorption capacity and high-water retention, which hinder the practical application of AWH materials. In this study, we developed a novel dual-layered hydrogel (DLH) composed of a light-to-heat conversion layer (LHL) containing novel polydopamine-manganese nanoparticles (PDA-Mn NPs) and a water adsorption layer (WAL) made of 2-(acryloyloxyethyl) trimethylammonium chloride (AEtMA). The WAL has a strong ability to adsorb water molecules in the air and has a high-water storage capacity, and the PDA-Mn NPs embedded in the LHL have excellent photothermal conversion efficiency, leading to light-induced autonomous water release. As a result, the DLH displays a high-water adsorption capacity of 7.73 g g-1 under optimal conditions and could near-quantitatively release captured water within 4 h sunlight exposure. Coupled with its low cost, we believed that the DLH will be one of the promising AWH materials for practical applications.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	WILEY-V C H VERLAG GMBH
dc.relation	http://purl.org/au-research/grants/arc/FT180100312
dc.relation.ispartof	ChemSusChem
dc.relation.isbasedon	10.1002/cssc.202300137
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0301 Analytical Chemistry, 0399 Other Chemical Sciences, 0904 Chemical Engineering
dc.subject.classification	General Chemistry
dc.subject.classification	Organic Chemistry
dc.subject.classification	3403 Macromolecular and materials chemistry
dc.subject.classification	3405 Organic chemistry
dc.subject.classification	4004 Chemical engineering
dc.title	Divide and Conquer: A Novel Dual-Layered Hydrogel for Atmospheric Moisture Harvesting.
dc.type	Journal Article
utslib.citation.volume	16
utslib.location.activity	Germany
utslib.for	0301 Analytical Chemistry
utslib.for	0399 Other Chemical Sciences
utslib.for	0904 Chemical 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	open_access	*
dc.date.updated	2023-11-20T03:49:24Z
pubs.issue	14
pubs.publication-status	Published
pubs.volume	16
utslib.citation.issue	14

Abstract:

Atmospheric water harvesting (AWH) has been recognized as a next-generation technology to alleviate water shortages in arid areas. However, the current AWH materials suffer from insufficient water adsorption capacity and high-water retention, which hinder the practical application of AWH materials. In this study, we developed a novel dual-layered hydrogel (DLH) composed of a light-to-heat conversion layer (LHL) containing novel polydopamine-manganese nanoparticles (PDA-Mn NPs) and a water adsorption layer (WAL) made of 2-(acryloyloxyethyl) trimethylammonium chloride (AEtMA). The WAL has a strong ability to adsorb water molecules in the air and has a high-water storage capacity, and the PDA-Mn NPs embedded in the LHL have excellent photothermal conversion efficiency, leading to light-induced autonomous water release. As a result, the DLH displays a high-water adsorption capacity of 7.73 g g-1 under optimal conditions and could near-quantitatively release captured water within 4 h sunlight exposure. Coupled with its low cost, we believed that the DLH will be one of the promising AWH materials for practical applications.

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http://hdl.handle.net/10453/173484