Performance characterization and application of composite adsorbent LiCl@ACFF for moisture harvesting

Abstract Freshwater scarcity is a global threat to modern era of human society. Sorption-based atmospheric water harvesting (AWH) is prospective to provide fresh water for remote water-stressed areas lacking in water and electricity. Adsorbent material plays a vital role in such AWH systems. Here, w...

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Autores principales:	X. Y. Liu, W. W. Wang, S. T. Xie, Q. W. Pan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/00605a0f72904508ae2a93d824590a79
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spelling	oai:doaj.org-article:00605a0f72904508ae2a93d824590a792021-12-02T15:33:01ZPerformance characterization and application of composite adsorbent LiCl@ACFF for moisture harvesting10.1038/s41598-021-93784-72045-2322https://doaj.org/article/00605a0f72904508ae2a93d824590a792021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93784-7https://doaj.org/toc/2045-2322Abstract Freshwater scarcity is a global threat to modern era of human society. Sorption-based atmospheric water harvesting (AWH) is prospective to provide fresh water for remote water-stressed areas lacking in water and electricity. Adsorbent material plays a vital role in such AWH systems. Here, we report a solid adsorbent synthesized by impregnating hygroscopic salt lithium chloride (LiCl) into solidified activated carbon fiber felt (ACFF modified by silica sol). Composite samples immersed with different mass concentrations of silica sol are prepared and characterized for dynamic water uptake, equilibrium water uptake, textural and thermal properties. AS5Li30 (ACFF + 5 wt% silica gel + 30 wt% LiCl) exhibits an efficient water uptake of 2.1 g/g at 25 °C and 70% relative humidity (RH). The material further demonstrates a heat storage capacity of 5456 kJ/kg. Its low regeneration temperature (< 80 °C) and good cycle stability make it feasible to be used in practical water production applications, driven by solar energy and other low-grade energy. Estimation results show that water harvesting unit can produce 1.41 gH2O/gAS5Li30 under 25 °C and 75% RH.X. Y. LiuW. W. WangS. T. XieQ. W. PanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q X. Y. Liu W. W. Wang S. T. Xie Q. W. Pan Performance characterization and application of composite adsorbent LiCl@ACFF for moisture harvesting
description	Abstract Freshwater scarcity is a global threat to modern era of human society. Sorption-based atmospheric water harvesting (AWH) is prospective to provide fresh water for remote water-stressed areas lacking in water and electricity. Adsorbent material plays a vital role in such AWH systems. Here, we report a solid adsorbent synthesized by impregnating hygroscopic salt lithium chloride (LiCl) into solidified activated carbon fiber felt (ACFF modified by silica sol). Composite samples immersed with different mass concentrations of silica sol are prepared and characterized for dynamic water uptake, equilibrium water uptake, textural and thermal properties. AS5Li30 (ACFF + 5 wt% silica gel + 30 wt% LiCl) exhibits an efficient water uptake of 2.1 g/g at 25 °C and 70% relative humidity (RH). The material further demonstrates a heat storage capacity of 5456 kJ/kg. Its low regeneration temperature (< 80 °C) and good cycle stability make it feasible to be used in practical water production applications, driven by solar energy and other low-grade energy. Estimation results show that water harvesting unit can produce 1.41 gH2O/gAS5Li30 under 25 °C and 75% RH.
format	article
author	X. Y. Liu W. W. Wang S. T. Xie Q. W. Pan
author_facet	X. Y. Liu W. W. Wang S. T. Xie Q. W. Pan
author_sort	X. Y. Liu
title	Performance characterization and application of composite adsorbent LiCl@ACFF for moisture harvesting
title_short	Performance characterization and application of composite adsorbent LiCl@ACFF for moisture harvesting
title_full	Performance characterization and application of composite adsorbent LiCl@ACFF for moisture harvesting
title_fullStr	Performance characterization and application of composite adsorbent LiCl@ACFF for moisture harvesting
title_full_unstemmed	Performance characterization and application of composite adsorbent LiCl@ACFF for moisture harvesting
title_sort	performance characterization and application of composite adsorbent licl@acff for moisture harvesting
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/00605a0f72904508ae2a93d824590a79
work_keys_str_mv	AT xyliu performancecharacterizationandapplicationofcompositeadsorbentliclacffformoistureharvesting AT wwwang performancecharacterizationandapplicationofcompositeadsorbentliclacffformoistureharvesting AT stxie performancecharacterizationandapplicationofcompositeadsorbentliclacffformoistureharvesting AT qwpan performancecharacterizationandapplicationofcompositeadsorbentliclacffformoistureharvesting
_version_	1718387123177914368

Performance characterization and application of composite adsorbent LiCl@ACFF for moisture harvesting

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