Preparation of Graphene-MXene Photothermal Desalination embranes and Synergistic Enhancement of Interfacial Photo-vapor Desalination Performance
Interfacial solar evaporation desalination is a low-cost,environmentally friendly and efficient seawater desalination technique.In this paper,the graphene-MXene photothermal desalination membranes with a 2D-2D crosslinked structure were synthesized by self-assembly.The microstructure,morphology,wettability,light absorption characteristics,and their relationships with the photothermal evaporation desalination performance of membranes with different thicknesses were investigated.Results indicate that under 1 kW/m2 solar irradiation,the optimal graphene-MXene photothermal desalination membrane reaches a maximum evaporation rate of 1.68 kg/(m2·h)with an efficiency of 85.38%in 0.2 mol/L saline solution.
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