Abstract
Establishing alternative methods for freshwater production is imperative to effectively alleviate global water scarcity,particularly in land-locked arid regions.In this context,extracting water from the ubiquitous atmospheric moisture is an ingenious strategy for decentralized freshwater production.Sorption-based atmospheric water harvesting(SAWH)shows strong potential for supplying liquid water in a portable and sustainable way even in desert environments.Herein,the latest progress in SAWH tech-nology in terms of materials,devices,and systems is reviewed.Recent advances in sorbent materials with improved water uptake capacity and accelerated sorption-desorption kinetics,including physical sor-bents,polymeric hydrogels,composite sorbents,and ionic solutions,are discussed.The thermal designs of SAWH devices for improving energy utilization efficiency,heat transfer,and mass transport are eval-uated,and the development of representative SAWH prototypes is clarified in a chronological order.Thereafter,state-of-the-art operation patterns of SAWH systems,incorporating intermittent,daytime continuous and 24-hour continuous patterns,are examined.Furthermore,current challenges and future research goals of this cutting-edge field are outlined.This review highlights the irreplaceable role of heat and mass transfer enhancement and facile structural improvement for constructing high-yield water harvesters.
基金项目
National Natural Science Funds for Distinguished Young Scholar of China(52325601)
国家自然科学基金重大项目(52293412)
NETL
NSTL
万方数据