Versatile cationic dual-layer hydrogel filtration system for sustainable solar steam generator

Onggowarsito, C; Shao, Z; Mao, S; Zhang, S; Feng, A; Li, X; Wong, EHH; Fu, Q

Versatile cationic dual-layer hydrogel filtration system for sustainable solar steam generator

Onggowarsito, C

Shao, Z Mao, S

Zhang, S Feng, A

Li, X Wong, EHH Fu, Q

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Materials Today Sustainability, 2024, 26
Issue Date:: 2024-06-01

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Field	Value	Language
dc.contributor.author	Onggowarsito, C https://orcid.org/0000-0002-8962-7971
dc.contributor.author	Shao, Z
dc.contributor.author	Mao, S https://orcid.org/0000-0002-4761-4670
dc.contributor.author	Zhang, S
dc.contributor.author	Feng, A https://orcid.org/0000-0002-8444-798X
dc.contributor.author	Li, X
dc.contributor.author	Wong, EHH
dc.contributor.author	Fu, Q https://orcid.org/0000-0002-4012-330X
dc.date.accessioned	2024-12-06T00:57:28Z
dc.date.available	2024-12-06T00:57:28Z
dc.date.issued	2024-06-01
dc.identifier.citation	Materials Today Sustainability, 2024, 26
dc.identifier.issn	2589-2347
dc.identifier.issn	2589-2347
dc.identifier.uri	http://hdl.handle.net/10453/182391
dc.description.abstract	Our increasing water demand has been an ongoing critical challenge due to water usages in areas such as industrial, agriculture, and domestic household. Conventional water production faces challenges, such as high investment, energy consumption, and brine discharge that may be unsustainable in the future. Solar steam generation (SSG) has been recently proposed by many researchers due to their sustainable and green water production method. Here we demonstrated the use of simple manufacturing and low-cost dual-layer hydrogel (DLH) system containing a double network of positive charged poly-[2-(acryloyloxy)ethyl] trimethyl ammonium chloride (PAETAC) and polyvinyl alcohol (PVA) bottom layer for fast water transport, as well as a broad light absorbing and heat generating PVA/graphene oxide (GO) top layer for fast water evaporation. As a result, the DLH was able to generate a high 3.12 kg m−2 h−1 water evaporation with 92% efficiency under 1 sun (kW m−2) exposure. Furthermore, this DLH design allows for a safe and passive anti-salt and bacterial property due to PAETAC cationic chain, eliminating 99% salt and bacteria via Donnan repulsion and electrostatic interaction without the need of sunlight exposure.
dc.language	English
dc.publisher	ELSEVIER
dc.relation	http://purl.org/au-research/grants/arc/FT180100312
dc.relation.ispartof	Materials Today Sustainability
dc.relation.isbasedon	10.1016/j.mtsust.2024.100753
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	3403 Macromolecular and materials chemistry
dc.subject.classification	3405 Organic chemistry
dc.subject.classification	3406 Physical chemistry
dc.title	Versatile cationic dual-layer hydrogel filtration system for sustainable solar steam generator
dc.type	Journal Article
utslib.citation.volume	26
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/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Technology in Water and Wastewater (CTWW)
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	2024-12-06T00:57:26Z
pubs.publication-status	Published
pubs.volume	26

Abstract:

Our increasing water demand has been an ongoing critical challenge due to water usages in areas such as industrial, agriculture, and domestic household. Conventional water production faces challenges, such as high investment, energy consumption, and brine discharge that may be unsustainable in the future. Solar steam generation (SSG) has been recently proposed by many researchers due to their sustainable and green water production method. Here we demonstrated the use of simple manufacturing and low-cost dual-layer hydrogel (DLH) system containing a double network of positive charged poly-[2-(acryloyloxy)ethyl] trimethyl ammonium chloride (PAETAC) and polyvinyl alcohol (PVA) bottom layer for fast water transport, as well as a broad light absorbing and heat generating PVA/graphene oxide (GO) top layer for fast water evaporation. As a result, the DLH was able to generate a high 3.12 kg m−2 h−1 water evaporation with 92% efficiency under 1 sun (kW m−2) exposure. Furthermore, this DLH design allows for a safe and passive anti-salt and bacterial property due to PAETAC cationic chain, eliminating 99% salt and bacteria via Donnan repulsion and electrostatic interaction without the need of sunlight exposure.

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http://hdl.handle.net/10453/182391