首页|Progress and perspectives of sorption-based atmospheric water harvesting for sustainable water generation:Materials,devices,and systems
Progress and perspectives of sorption-based atmospheric water harvesting for sustainable water generation:Materials,devices,and systems
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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.
Atmospheric water harvestingWater vapor sorptionWater sorbentsThermal designHeat transferMass transport
Zhaoyuan Bai、Pengfei Wang、Jiaxing Xu、Ruzhu Wang、Tingxian Li
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Institute of Refrigeration and Cryogenics,School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China
Research Center of Solar Power and Refrigeration(Ministry of Education),Shanghai Jiao Tong University,Shanghai 200240,China
National Natural Science Funds for Distinguished Young Scholar of China国家自然科学基金重大项目
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