干旱区生态环境知识资源中心(Arid): A Polyzwitterionic@MOF Hydrogel with Exceptionally High Water Vapor Uptake for Efficient Atmospheric Water Harvesting

Arid

DOI	10.3390/molecules29081851
	A Polyzwitterionic@MOF Hydrogel with Exceptionally High Water Vapor Uptake for Efficient Atmospheric Water Harvesting
	Yan, Jian; Li, Wenjia; Yu, Yingyin; Huang, Guangyu; Peng, Junjie; Lv, Daofei; Chen, Xin; Wang, Xun; Liu, Zewei
通讯作者	Wang, X ; Liu, ZW
来源期刊	MOLECULES
EISSN	1420-3049
出版年	2024
卷号	29 期号:8
英文摘要	Atmospheric water harvesting (AWH) is considered a promising strategy for sustainable freshwater production in landlocked and arid regions. Hygroscopic salt-based composite sorbents have attracted widespread attention for their water harvesting performance, but suffer from aggregation and leakage issues due to the salting-out effect. In this study, we synthesized a PML hydrogel composite by incorporating zwitterionic hydrogel (PDMAPS) and MIL-101(Cr) as a host for LiCl. The PML hydrogel was characterized using various techniques including X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR), and thermogravimetric analysis (TGA). The swelling properties and water vapor adsorption-desorption properties of the PML hydrogel were also assessed. The results demonstrate that the MIL-101(Cr) was uniformly embedded into PDMAP hydrogel, and the PML hydrogel exhibits a swelling ratio of 2.29 due to the salting-in behavior. The PML hydrogel exhibited exceptional water vapor sorption capacity of 0.614 g/g at 298 K, RH = 40% and 1.827 g/g at 298 K, RH = 90%. It reached 80% of its saturated adsorption capacity within 117 and 149 min at 298 K, RH = 30% and 90%, respectively. Additionally, the PML hydrogel showed excellent reversibility in terms of water vapor adsorption after ten consecutive cycles of adsorption-desorption. The remarkable adsorption capacity, favorable adsorption-desorption rate, and regeneration stability make the PML hydrogel a potential candidate for AWH. This polymer-MOF synergistic strategy for immobilization of LiCl in this work offers new insights into designing advanced materials for AWH.
英文关键词	PML hydrogel MOFs atmospheric water harvesting hygroscopic salt
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:001210599100001
WOS关键词	METAL-ORGANIC FRAMEWORKS ; ADSORPTION ; ADSORBENTS
WOS类目	Biochemistry & Molecular Biology ; Chemistry, Multidisciplinary
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404935
推荐引用方式 GB/T 7714	Yan, Jian,Li, Wenjia,Yu, Yingyin,et al. A Polyzwitterionic@MOF Hydrogel with Exceptionally High Water Vapor Uptake for Efficient Atmospheric Water Harvesting[J],2024,29(8).
APA	Yan, Jian.,Li, Wenjia.,Yu, Yingyin.,Huang, Guangyu.,Peng, Junjie.,...&Liu, Zewei.(2024).A Polyzwitterionic@MOF Hydrogel with Exceptionally High Water Vapor Uptake for Efficient Atmospheric Water Harvesting.MOLECULES,29(8).
MLA	Yan, Jian,et al."A Polyzwitterionic@MOF Hydrogel with Exceptionally High Water Vapor Uptake for Efficient Atmospheric Water Harvesting".MOLECULES 29.8(2024).