▎ 摘 要
Solar-driven interfacial evaporation (SIE) is a promising desalination technology that utilizes solar energy and seawater. However, most SIE systems are limited by high cost, complex fabrication, and low salt tolerance. Herein, a simple method is presented for preparing a 3D graphene/carbon nanotubes/polypyrrole foam (GCPF) evaporator that exhibits high evaporation efficiency, excellent mechanical performance, and stable solar desalination of high-salinity brine. The excellent processability of melamine foam enables the easy preparation of the 3D GCPF, which exhibits an enhanced evaporation rate of 4.012 kg m(-2) h(-1) and a photothermal conversion efficiency of 97.8% under one sun irradiation. Compared with the 2D sample, the GCPF-3 evaporator utilizes solar energy more efficiently and maintains higher evaporation performance even when the light angle changes. Moreover, the 3D GCPF shows remarkable salt tolerance and durability, achieving a stable evaporation rate of 4.005 kg m(-2) h(-1) for 30 h with a salinity of 25 wt%, which is the best-reported result among solar desalination systems. This work provides new insights into the design of 3D graphene composite foams and demonstrates their potential applications in continuous solar desalination.