Figure Captions
Figure 1. (a) Structure diagram of the prepared solar steam generator; SEM imagery of (b) CA nanofibers, (c) PVB nanofibers, (d) CA//PVB Janus nanofibers, (e) CA//PVB Janus nanofibers aerogel, and (f-h) surface of the solar steam generator
Figure 2. (a) Densities and saturation water contents of solar steam generators; (b) water mass change curves and (c) temperature variation when using solar steam generators with different densities; (d) water mass change curves when using solar steam generators with different loading amounts of photothermal materials; (e) water evaporation performances, (f) temperature variations and (g) light absorption spectra of solar steam generators with different contents of SiO2 NPs; (h) illustration of water state in photothermal materials; (i) mass losses of solar steam generators with different PDA contents after water soaking; (j) water evaporation performances, (k) temperature variations and (j) light absorption spectra of solar steam generators with different contents of PDA
Figure 3. (a) Water mass change curves, (b) hourly evaporation capacities and energy efficiencies, and (c) infrared thermal imaging photographs of evaporation surface and bulk water under different irradiation intensities
Figure 4. (a) Water content of the solar steam generator during SSG process; (b) hourly water evaporation rates in ten-hour continuous SSG process; (c) water evaporation rates in 20 cycles under 1 sun irradiation; (d) illustration of flipped solar steam generator in natural water environment; (e) temperature variation of evaporation surface, (f) water mass change and interval mean evaporation rate with quintuplicate flipped solar steam generator
Figure 5. (a) Water evaporation performances of contrast samples; (b) illustration of water-pumping ability of CA//PVB Janus nanofibers and CA-PVB blended nanofibers; (c) temperature variation curves and (d) infrared thermal imaging photographs of contrast samples
Figure 6. (a) Mass change curves of 3.5 % NaCl aqueous solution with or without solar steam generators; salt deposition on (b) CA-based product and (c) CA//PVB-based product after five-hour SSG; (d) evaporation rates of NaCl solutions with different concentrations when using CA//PVB-based product; (e) self-cleaning property of CA//PVB-based product; desalination performances of CA//PVB-based product on (f) NaCl solutions with different concentrations and (g) actual seawater; (h) organic compounds removal performances of CA//PVB-based product