Science Advances

Supplementary Materials

This PDF file includes:

  • Fig. S1. Photographs and IR photographs of the conventional absorber and the WHS device after working for 8 hours.
  • Fig. S2. Heat localization in WHS.
  • Fig. S3. Thermal properties for the top solar absorber of the WHS.
  • Fig. S4. SEM image of the Cu foam after etching and Al2O3 coating.
  • Fig. S5. IR emittance spectra of the absorbers after Al2O3 coating and CB decoration.
  • Fig. S6. The mechanism of water supply for the WHS device.
  • Fig. S7. Vapor generation performances of the WHS treating brine with different salinities.
  • Fig. S8. Mass changes of different water sources over time with the WHS device.
  • Fig. S9. The schematic of the setup used for collecting purified water.
  • Fig. S10. Salinities of different brine before (3.5 wt %, 5 wt %, and 10 wt %) and after purification.
  • Fig. S11. The schematic of the conventional solar absorber.
  • Fig. S12. Characterizations of the conventional solar absorber.
  • Fig. S13. Performances of solar evaporation for the WHS device and conventional solar absorber at the beginning (0 day) and after 18 days of working.
  • Fig. S14. Concentrations of ions in the water before and after purification.
  • Table S1. Comparison of optical performances of the absorbers after Al2O3 coating and CB decoration.

Download PDF

Files in this Data Supplement: