2D MXenes Embedded Perovskite Hydrogels for Efficient and Stable Solar Evaporation

Solar evaporation is a facile and promising technology to efficiently utilize renewable energy for freshwater production seawater desalination. Here, the fabrication of self-regenerating hydrogel composed 2D-MXenes nanosheets embedded in perovskite La 0.6Sr 0.4Co 0.2Fe 0.8O3−δ (LSCF)/polyvinyl alcohol hydrogels efficient solar-driven desalination reported. The mixed dimensional LSCF/Ti3C2 composite features localized surface plasmonic resonance effect polymeric network polyvinyl endows excellent rates (1.98 kg m−2 h−1) under 1 k Wm−2 or one sun solar irradiation ascribed by hydrophilicity broadband absorption (96%). Furthermore, long-term performance reveals smooth mass change (13.33 m−2) during 8 h sun. prompts dilution concentrated brines redissolves it back water (1.2 g NaCl/270 min) without impeding rate any salt-accumulation. present research offers substantial opportunity salt accumulation real-life applications.