干旱区生态环境知识资源中心(Arid): Hygroscopic-Microgels-Enabled Rapid Water Extraction from Arid Air

Arid

DOI	10.1002/adma.202207786
	Hygroscopic-Microgels-Enabled Rapid Water Extraction from Arid Air
	Guan, Weixin; Lei, Chuxin; Guo, Youhong; Shi, Wen; Yu, Guihua
通讯作者	Yu, GH
来源期刊	ADVANCED MATERIALS
ISSN	0935-9648
EISSN	1521-4095
出版年	2024
卷号	36 期号:12
英文摘要	Sorbent-based atmospheric water harvesting (AWH) has emerged as a promising decentralized water-production technology to mitigate the freshwater crisis in arid areas. Hydrogels have been regarded as attractive sorbents due to their high water retention and tailorable polymer-water interactions. Yet, the kinetics of water sorption and desorption at low relative humidity (RH) shall be improved for their practical implementation. Here, hygroscopic microgels (HMGs) composed of hydroxypropyl cellulose (HPC) and hygroscopic salt are reported, which achieve a water uptake of ca. 0.5-0.8 g g(-1) at 15-30% RH. HMGs enable rapid sorption-desorption kinetics owing to the short-distance diffusion in the microgels and hydrophilicity-hydrophobicity switching of the thermoresponsive HPC. To validate the feasibility of HMGs for moisture extraction, a potential daily water collection of up to equivalent 7.9-19.1 L kg(-1) at low RH is demonstrated, enabled by 24-36 operation cycles per day based on the material-level experiments. With renewable raw materials and superior performance, HMGs provide a sustainable approach for rapid moisture extraction in arid climates.
英文关键词	arid environments atmospheric water harvesting hydrogels kinetics microgels
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000882537500001
WOS关键词	HYDROXYPROPYL CELLULOSE ; PHASE-TRANSITION ; CHLORIDE
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402610
推荐引用方式 GB/T 7714	Guan, Weixin,Lei, Chuxin,Guo, Youhong,et al. Hygroscopic-Microgels-Enabled Rapid Water Extraction from Arid Air[J],2024,36(12).
APA	Guan, Weixin,Lei, Chuxin,Guo, Youhong,Shi, Wen,&Yu, Guihua.(2024).Hygroscopic-Microgels-Enabled Rapid Water Extraction from Arid Air.ADVANCED MATERIALS,36(12).
MLA	Guan, Weixin,et al."Hygroscopic-Microgels-Enabled Rapid Water Extraction from Arid Air".ADVANCED MATERIALS 36.12(2024).