Hybrid salt-enriched micro-sorbents for atmospheric water sorption

Elwadood, Samar N. Abd; Reddy, K. Suresh Kumar; Wahedi, Yasser Al; Alili, Ali Al; Farinha, Andreia S.F.; Witkamp, Geert‐Jan; Dumée, Ludovic F.; Karanikolos, Georgios N.

doi:10.1016/j.jwpe.2023.103560

Cited by 9 publications

(1 citation statement)

References 48 publications

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“…Nonlinear regression was used to fit the acquired experimental sorption isotherms to various models, namely, GAB, Langmuir, FHH, and Freundlich. The formulas and the model’s parameters are presented in refs and .…”

Section: Methodsmentioning

confidence: 99%

A Semi-Interpenetrating Network Sorbent of Superior Efficiency for Atmospheric Water Harvesting and Solar-Regenerated Release

Elwadood,

Farinha,

Al Wahedi

et al. 2024

ACS Appl. Mater. Interfaces

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Water is readily available nearly anywhere as vapor. Thus, atmospheric water harvesting (AWH) technologies are seen as a promising solution to support sustainable water production. This work reports a novel semi-interpenetrating network, which integrates poly(pyrrole) doped with a hygroscopic salt and 2D graphene-based nanosheets optimally assembled within an alginate matrix, capable of harvesting water from the atmosphere with a record intake of up to 7.15 g w /g s . Owing to the incorporated graphene nanosheets, natural sunlight was solely used to enable desorption, achieving an increase of the temperature of the developed network of up to 71 °C within 20 min, resulting in a water yield of 3.36 L/kg S in each cycle with quality well within the World Health Organization standard ranges. Notably, after 30 cycles of sorption and desorption, the composite hydrogel displayed unchanged water uptake and stability. This study demonstrates that atmospheric water vapor as a complementary source of water can be harvested sustainably and effectively at a minimal cost and without external energy input.

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Section: Methodsmentioning

confidence: 99%

A Semi-Interpenetrating Network Sorbent of Superior Efficiency for Atmospheric Water Harvesting and Solar-Regenerated Release

Elwadood,

Farinha,

Al Wahedi

et al. 2024

ACS Appl. Mater. Interfaces

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A Super‐Hygroscopic Solar‐Regenerated Alginate‐Based Composite for Atmospheric Water Harvesting

Abd Elwadood,

Farinha,

Al Wahedi

et al. 2024

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Global water scarcity is leading to increasingly tense competition across populations. In order to complement the largely fast‐depleting fresh water sources and mitigate the challenges generated by brine discharge from desalination, atmospheric water harvesting (AWH) has emerged to support long‐term water supply. This work presents a novel alginate‐based hybrid material comprised of porous silico‐aluminophosphate‐34 (SAPO‐34) as fast‐transport channel medium as well as hydrophilicity and stability enhancer, and graphene‐based sheets as light absorber for solar‐enabled evaporation, both optimally incorporated in an alginate matrix, resulting in a composite sorbent capable of harvesting water from the atmosphere with a record intake of up to 6.85 gw gs−1. Natural sunlight is solely used to enable desorption achieving increase of the temperature of the developed network up to 60 °C and resulting in release of the sorbed water, with impurities content well below the World Health Organization (WHO) upper limits. After 30 cycles of sorption and desorption, the composite hydrogel displayed unchanged water uptake and stability. This work provides an impactful perspective toward sustainable generation of water from humidity without external energy consumption supporting the emergence of alternative water production solutions.

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Research progress of sorption materials in rotary desiccant wheel system{fr}Progrès de la recherche sur les matériaux de sorption dans le système de roue de dessiccation rotative

Tang,

Wang,

Liang

et al. 2025

International Journal of Refrigeration

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Hybrid salt-enriched micro-sorbents for atmospheric water sorption

Cited by 9 publications

References 48 publications

A Semi-Interpenetrating Network Sorbent of Superior Efficiency for Atmospheric Water Harvesting and Solar-Regenerated Release

A Semi-Interpenetrating Network Sorbent of Superior Efficiency for Atmospheric Water Harvesting and Solar-Regenerated Release

A Super‐Hygroscopic Solar‐Regenerated Alginate‐Based Composite for Atmospheric Water Harvesting

Research progress of sorption materials in rotary desiccant wheel system{fr}Progrès de la recherche sur les matériaux de sorption dans le système de roue de dessiccation rotative

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