Fig. 4: Photothermal performance of rGMXn sponges under one-sun illumination.

a The light absorption spectra of rGMXn sponges. b Infrared images and c temperature of the top surface of rGMXn sponges under one-sun illumination exposed in the air for 30 s. d Schematic of the photothermal mechanism of rGMXn sponges. e Infrared images and f temperature of the top surface of rGMXn sponges under one-sun illumination floating on the water for 5 min. g Mass loss and h evaporation rate and efficiency of rGMXn sponges under one-sun illumination.