It is highly desirable to develop a solar-driven interfacial water evaporator with a self-healing ability and high-efficiency water evaporation performance for water distillation and desalination; however, this process is considerably challenging. Herein, by exploiting the advantages of a self-healing hydrophilic polymer, a self-healing hydrophilic porous photothermal (SHPP) membrane was fabricated by curing a mixture of the polymer, carbon black, and NaCl, followed by removal of the NaCl from water. Since the SHPP membrane could serve as a photothermal layer and water transportation channel simultaneously, a solar-driven interfacial evaporator could be fabricated readily by assembling the SHPP membrane with polyethylene foam. We have shown that the SHPP membrane-based evaporator exhibited a water evaporation rate of 1.68 kg m⁻² h⁻¹ and an energy efficiency of 97.3%. These values are superior to those obtained using solar-driven interfacial evaporators with self-healing capability. Notably, by hydrogen bonds reformation between the fracture surfaces, the SHPP membrane could regain its structural integrity after breaking, making the SHPP membrane-based evaporator the first to heal entirely and repeatedly from physical damage to sustain its water evaporation capacity. Therefore, the potential of using SHPP membranes to develop stable, long-lasting, and high-efficiency solar-driven interfacial water evaporators is highlighted.

开发具有自愈能力和高效水蒸发性能的太阳能驱动界面水蒸发器，用于水蒸馏和海水淡化是非常必要的；然而，这个过程相当具有挑战性。在此，通过利用自修复亲水聚合物的优点，通过固化聚合物、炭黑和 NaCl 的混合物，然后从水中去除 NaCl，制备了自修复亲水多孔光热 (SHPP) 膜。由于 SHPP 膜可以同时用作光热层和水传输通道，因此可以通过将 SHPP 膜与聚乙烯泡沫组装而成太阳能驱动的界面蒸发器。我们已经证明 SHPP 基于膜的蒸发器的水蒸发率为 1.68 kg m^-2 h ^-1和97.3%的能量效率。这些值优于使用具有自愈能力的太阳能驱动界面蒸发器获得的值。值得注意的是，通过断裂面之间的氢键重组，SHPP 膜可以在断裂后恢复其结构完整性，使基于 SHPP 膜的蒸发器成为第一个完全和反复从物理损伤中恢复以维持其水分蒸发能力的蒸发器。因此，强调了使用 SHPP 膜开发稳定、持久和高效的太阳能驱动界面水蒸发器的潜力。