Fig. 5: Optimized solar steam evaporation of PP-PEG-600-DMF-10 wt% CA foam.
From: Highly efficient solar steam evaporation via elastic polymer covalent organic frameworks monolith

a Mass changes versus time of PP-PEG-600-DMF-10 wt% CA evaporator under different concentrated sunlight intensities. b The cycling evaporation performance of PP-PEG-600-DMF-10 wt% CA towards deionized water (5 h for each cycle). c Evaporation rates of PP-PEG-600-DMF-10 wt% CA in comparison with the values of 3D solar absorbers reported in literatures. d Ion concentration of Na+, K+, Ca2+, and Mg2+ of seawater before and after desalination. e The stable evaporation performance of PP-PEG-600-DMF-10 wt% CA towards wastewater with a broad pH region of 1–13. f Mass changes versus time of PP-PEG-600-DMF-10 wt% CA evaporator with a truncated cone-shaped reflector made of aluminum sheets (the inset image shows the device design).