A cryogel solar vapor generator with rapid water replenishment and high intermediate water content for seawater desalination

Mao, S; Onggowarsito, C; Feng, A; Zhang, S; Fu, Q; Nghiem, LD

A cryogel solar vapor generator with rapid water replenishment and high intermediate water content for seawater desalination

Mao, S

Onggowarsito, C

Feng, A Zhang, S Fu, Q

Nghiem, LD

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Publisher:: ROYAL SOC CHEMISTRY
Publication Type:: Journal Article
Citation:: Journal of Materials Chemistry A, 2022, 11, (2), pp. 858-867
Issue Date:: 2022-12-02

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Field	Value	Language
dc.contributor.author	Mao, S https://orcid.org/0000-0002-4761-4670
dc.contributor.author	Onggowarsito, C https://orcid.org/0000-0002-8962-7971
dc.contributor.author	Feng, A
dc.contributor.author	Zhang, S
dc.contributor.author	Fu, Q https://orcid.org/0000-0002-4012-330X
dc.contributor.author	Nghiem, LD
dc.date.accessioned	2023-04-26T04:42:45Z
dc.date.available	2023-04-26T04:42:45Z
dc.date.issued	2022-12-02
dc.identifier.citation	Journal of Materials Chemistry A, 2022, 11, (2), pp. 858-867
dc.identifier.issn	2050-7488
dc.identifier.issn	2050-7496
dc.identifier.uri	http://hdl.handle.net/10453/170115
dc.description.abstract	A hydrogel-based solar vapor generator (SVG) system, without any additional energy input, is a promising alternative to current energy intensive desalination technologies. Thermal and water management govern the performance of SVG systems. However, considerable efforts have been devoted to improving thermal management to achieve high evaporation rates, while the research on the water management of hydrogels is still in its early stages, hindering the development of advanced SVGs. Through systematic selection of polymer precursors with appropriate glass transition temperature (Tg), here we developed a novel cryogel SVG system with desired properties for water management, such as interconnected pores, rapid-water-replenishment, a high intermediate water ratio etc. As a result, the resultant cryogels exhibit a high intermediate water content of 67%, a low equivalent evaporation enthalpy of 861.5 J g−1, an excellent evaporation rate of 3.59 kg m−1 h−1 under one sun, high salt resistance and long-term durability in desalination, showing great potential for practical applications.
dc.language	English
dc.publisher	ROYAL SOC CHEMISTRY
dc.relation	http://purl.org/au-research/grants/arc/FT180100312
dc.relation.ispartof	Journal of Materials Chemistry A
dc.relation.isbasedon	10.1039/d2ta08317e
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0303 Macromolecular and Materials Chemistry, 0912 Materials Engineering, 0915 Interdisciplinary Engineering
dc.title	A cryogel solar vapor generator with rapid water replenishment and high intermediate water content for seawater desalination
dc.type	Journal Article
utslib.citation.volume	11
utslib.for	0303 Macromolecular and Materials Chemistry
utslib.for	0912 Materials 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	open_access	*
dc.date.updated	2023-04-26T04:42:44Z
pubs.issue	2
pubs.publication-status	Published
pubs.volume	11
utslib.citation.issue	2

Abstract:

A hydrogel-based solar vapor generator (SVG) system, without any additional energy input, is a promising alternative to current energy intensive desalination technologies. Thermal and water management govern the performance of SVG systems. However, considerable efforts have been devoted to improving thermal management to achieve high evaporation rates, while the research on the water management of hydrogels is still in its early stages, hindering the development of advanced SVGs. Through systematic selection of polymer precursors with appropriate glass transition temperature (Tg), here we developed a novel cryogel SVG system with desired properties for water management, such as interconnected pores, rapid-water-replenishment, a high intermediate water ratio etc. As a result, the resultant cryogels exhibit a high intermediate water content of 67%, a low equivalent evaporation enthalpy of 861.5 J g−1, an excellent evaporation rate of 3.59 kg m−1 h−1 under one sun, high salt resistance and long-term durability in desalination, showing great potential for practical applications.

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http://hdl.handle.net/10453/170115