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Solar Desalination
In article number 2300189, Lin Li and co‐workers present a Janus ion‐selective hydrogel interfacial evaporator, which enables ion‐electromigration salt removal. The from‐scratch salt‐removal route breaks the limitations of the conventional water‐convection enhanced routes, and significantly lowers heat loss, achieving a record‐high evaporation rate and holding great promise for...
Emerging solar interfacial evaporation offers the most promising response to the severe freshwater crisis. However, the most challenging bottleneck is the conflict between resisting salt accumulation and maintaining high evaporation performance since conventional salt‐resistant evaporators enhance water flow to remove salt, leading to tremendous heat loss. Herein, an ion‐transfer engineering is proposed...