An encapsulation protocol of salt-based composite sorbents for atmospheric water harvesting

Sorption-based atmospheric water harvesting (SAWH) is a feasible and sustainable approach to address water scarcity issues. Featuring the high affinity of hygroscopic salts with water vapor, salt-based composite sorbents have been widely used. However, the risk of salt solution leakage is still challenging. In this protocol, we introduce a porous waterproof and moisture-permeable membrane encapsulation technique to develop salt-based sorbents. The high salt content composites (HSCC-Ex) exhibit remarkably high salt content of 80 wt % without the risk of leakage. For complete details on the use and execution of this protocol, please refer to Shan et al. (2021).