干旱区生态环境知识资源中心(Arid): Salt Confined in MIL-101(Cr)-Tailoring the Composite Sorbents for Efficient Atmospheric Water Harvesting

Arid

DOI	10.1002/cssc.202300520
	Salt Confined in MIL-101(Cr)-Tailoring the Composite Sorbents for Efficient Atmospheric Water Harvesting
	Solovyeva, Marina V.; Krivosheeva, Irina V.; Gordeeva, Larisa G.; Khudozhitkov, Alexander E.; Kolokolov, Daniil I.; Stepanov, Alexander G.; Ludwig, Ralf
通讯作者	Gordeeva, LG ; Kolokolov, DI
来源期刊	CHEMSUSCHEM
ISSN	1864-5631
EISSN	1864-564X
出版年	2023
卷号	16 期号:18
英文摘要	The adsorption method for atmospheric water harvesting (AWH) is considered as a promising heat-driven technology for potable water supply in arid regions. This research is focused on novel composite sorbents based on hygroscopic salts loaded in the pores of MIL-101(Cr) developed for AWH. The composites based on LiCl, LiBr, CaCl2, and Ca(NO3)(2) were synthesized and comprehensively studied by SEM, XRD, N-2 adsorption, and thermogravimetric methods. We evidence that the CaCl2/MIL-101(Cr) composite demonstrates a high net water uptake of 0.52-0.59 g_(H2O)/g_(composite) per cycle under conditions of Saudi Arabia and the Sahara desert as the reference regions with extra-dry climate, which exceeds the appropriate values for other adsorbents. It is shown that water adsorption on the composite cannot be presented as a combination of the adsorption on the components, thus indicating a synergistic effect. A detailed characterization of water coordination, mobility, and hydrogen bonding within the confined CaCl2 hydrates and salt solution using solid-state H-2 NMR spectroscopy has been performed. It is established that pore confinement promotes a prolonged transition to a dynamically melted state of the hydrated salt and a notable decrease of the melting temperature, which facilitates the molecular transport of water and causes the alteration of sorption properties of CaCl2 inside MIL-101 pores. Finally, the performance of AWH employing CaCl2/MIL-101(Cr) was evaluated in terms of the fractions of water extracted and collected, and the specific energy consumption, demonstrating its high potential for AWH.
英文关键词	water harvesting atmosphere Adsorption MIL-101(Cr) NMR spectroscopy
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001030505200001
WOS关键词	QUADRUPOLE COUPLING-CONSTANTS ; METAL-ORGANIC FRAMEWORKS ; DEUTERON MAGNETIC-RESONANCE ; MULTIPLE APPLICATIONS ; ADSORPTION HEAT ; CALCIUM DICHLORIDE ; CRYSTALS ; AIR ; TEMPERATURE ; EXTRACTION
WOS类目	Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology
WOS研究方向	Chemistry ; Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395744
推荐引用方式 GB/T 7714	Solovyeva, Marina V.,Krivosheeva, Irina V.,Gordeeva, Larisa G.,et al. Salt Confined in MIL-101(Cr)-Tailoring the Composite Sorbents for Efficient Atmospheric Water Harvesting[J],2023,16(18).
APA	Solovyeva, Marina V..,Krivosheeva, Irina V..,Gordeeva, Larisa G..,Khudozhitkov, Alexander E..,Kolokolov, Daniil I..,...&Ludwig, Ralf.(2023).Salt Confined in MIL-101(Cr)-Tailoring the Composite Sorbents for Efficient Atmospheric Water Harvesting.CHEMSUSCHEM,16(18).
MLA	Solovyeva, Marina V.,et al."Salt Confined in MIL-101(Cr)-Tailoring the Composite Sorbents for Efficient Atmospheric Water Harvesting".CHEMSUSCHEM 16.18(2023).