气候变化领域集成服务门户(CCPortal): All-day fresh water harvesting by microstructured hydrogel membranes

CCPortal

DOI	10.1038/s41467-021-23174-0
	All-day fresh water harvesting by microstructured hydrogel membranes
	Shi Y.; Ilic O.; Atwater H.A.; Greer J.R.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Solar steam water purification and fog collection are two independent processes that could enable abundant fresh water generation. We developed a hydrogel membrane that contains hierarchical three-dimensional microstructures with high surface area that combines both functions and serves as an all-day fresh water harvester. At night, the hydrogel membrane efficiently captures fog droplets and directionally transports them to a storage vessel. During the daytime, it acts as an interfacial solar steam generator and achieves a high evaporation rate of 3.64 kg m−2 h−1 under 1 sun enabled by improved thermal/vapor flow management. With a homemade rooftop water harvesting system, this hydrogel membrane can produce fresh water with a daily yield of ~34 L m−2 in an outdoor test, which demonstrates its potential for global water scarcity relief. © 2021, The Author(s).
语种	英语
scopus关键词	fresh water; gel; hydrogel; freshwater; gel; membrane; microstructure; purification; Article; controlled study; evaporation; membrane structure; scanning electron microscopy; solar energy; sunlight; surface area; vapor; water vapor
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251447
作者单位	Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, United States; Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, United States
推荐引用方式 GB/T 7714	Shi Y.,Ilic O.,Atwater H.A.,et al. All-day fresh water harvesting by microstructured hydrogel membranes[J],2021,12(1).
APA	Shi Y.,Ilic O.,Atwater H.A.,&Greer J.R..(2021).All-day fresh water harvesting by microstructured hydrogel membranes.Nature Communications,12(1).
MLA	Shi Y.,et al."All-day fresh water harvesting by microstructured hydrogel membranes".Nature Communications 12.1(2021).