Metal-organic framework and Agarose Polymer-derived Carbon Aerogels for Efficient and Cost-effective Solar Desalination
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Solar desalination technique by photothermal effect has shown a great potential in water purification. So, various absorbers such as metal nanoparticles, carbon and plasmonic materials have been developed for efficient solar-driven evaporation. However, reported materials still have trouble in the utilization of converted energy and the cost issue because ideal absorbers should have great light−thermal conversion efficiency, adequate hydrophilicity, low thermal conductivity, and porous networks, simultaneously. Herein, we propose an efficient in-situ energy utilization technique based on ZIF-8/agarose-derived carbon aerogels, demonstrating ideal adsorber, good stability, low cost and reduced salinity of seawater. This study is focused on improving water evaporation rate under the 1 sun, energy conversion, and salt resistance through the well-defined porosity of ZIF-8 derived carbon aerogels with high specific surface area (524m2/g), low density (0.07g/cm3), and great hydrophilicity.