Extended Data Fig. 10: Open capillary architecture facilitation in the salt cleaning.
From: Solar-trackable super-wicking black metal panel for photothermal water sanitation
Accumulation of salt on the SWSA surface after two hours of evaporation of concentrated (104 mg/liter) salt solution in the horizontal plane (Extended Data Fig. 4). The SWSA surface can transport and evaporate water until entire surface get covered with thick layer of salt. c, The accumulated salt can be easily removed from SWSA surface by flushing water for reusability of absorber and cheap maintenance of solar sanitation device, d, The SWSA, surface after contaminant removal, ready to reuse. (see Supplementary Video 3).
