Abstract: The solar interfacial evaporation has a broad application prospect in the fields of steam generation and seawater desalination to deal with the global shortage of fresh-water resources. Bamboo is a great material for solar interface evaporators because of its low thermal conductivity and inherent micro-channel porous structure. In this paper, a novel bamboo-based solar interface evaporator with a bionic ripple wave surface structure has been proposed. The subsequent evaporation experiments have been conducted to investigate the salt resistance, stability and water absorption of the bionic ripple bamboo based solar interface evaporator. The results have exhibited that the bamboo's water absorption has been enhanced after carbonization modification. Besides, it should be pointed out that this bamboo-based evaporator’s evaporation rate has dropped during the prolonged simulated seawater evaporation experiment, yet it remained fairly consistent at approximately 1.626 kg·m^?2·h^?1. The appearance for this experimental phenomenon is the decrease of the floatability of the evaporator constricted by the stored water body absorbed by the evaporator and the deposition of NaCl crystals at the photothermal interface. Besides, compared with the plate-structure evaporator, the salt deposition in the evaporator equipped with the bionic ripple wave surface structure is greatly improved. In regard to its advantages in low cost, environmental friendliness, good salt tolerance and high evaporation rate, the bamboo-based solar interface evaporator with a bionic ripple wave surface structure can provide a potential solution to the global problem of fresh-water shortage.

Key words: Photothermal interface evaporation, Bamboo-based, Ripple structure, Evaporation rate')">Photothermal interface evaporation, Bamboo-based, Ripple structure, Evaporation rate