Superhydrophobic/Superhydrophilic Janus Evaporator for Extreme High Salt-Resistance Solar Desalination by an Integrated 3D Printing Method

• DOI: 10.1021/acsami.3c03320
• Publication Date: 2023-05-02T15:14:12Z
• Authors: Congcan Shi; Zhenhua Wu; Yike Li; Xue Zhang; Yizhuo Xu; Aotian Chen; Chunze Yan; Yusheng Shi; Tao Wang; Bin Su
• Keywords: Superhydrophilicity; Solar Desalination; Brine; Solar still

The emerging solar desalination technology has incomparable advantages for providing a clean water solution. However, the issue of salt accumulation on evaporator tops during steam generation leads to considerable decrease in evaporation rate. Herein, we demonstrate superhydrophobic/superhydrophilic Janus that enables stable even saturated brine. Our with superhydrophobic top and superhydrophilic bottom been manufactured integrally, allowing fast without impediment accumulated residues. changes passageway from center toward edges while it allows vertical transport both thermo evaporated steams. Salt residues would only be deposited at bottom, long-term stability continuous (>50 h) brine, which is record-breaking salt-resistant evaporators. With efficient performance out high-salinity this work provides fascinating avenue seawater manner.