Reticular materials for atmospheric water harvesting: from chemistry to sustainable applications
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초록
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Ever increasing water stresses have been one of the greatest challenges of the world. To address this global crisis, water in air could be alternative water source for future but atmospheric water harvesting (AWH) has not been practical, especially in arid areas. However, recent developments of reticular materials such as metal-organic frameworks (MOFs) and covalent-organic frameworks (COFs) stimulated the sorbent-assisted AWH research. In this talk, recent progress on MOFs and COFs chemistry for AWH will be briefly introduced. Then, the most recent study of integrating MOFs into scalable AWH device will be presented that can produce water only using natural sunlight and ambient temperatures. This study showed that >75% of theoretical water harvesting capacity of MOFs could be achieved at device scale through the field tests in the desert without any footprints left in the environment. This sorbent-assisted AWH could usher in an new strategy of securing water against global water scarcity.