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