Fig. 2: Water sorption and desorption performance of HIPG. | Nature Communications

Fig. 2: Water sorption and desorption performance of HIPG.

From: Enhanced continuous atmospheric water harvesting with scalable hygroscopic gel driven by natural sunlight and wind

Fig. 2

A The water sorption isotherms of HIPG and PAAS at 25 °C. B The dynamic water sorption processes of bulk HIPG at the same temperature of 25 °C and different RHs of 30%, 45%, 60%, 75%, and 90%. C The experimental and simulated results of dynamic sorption processes for the single-sided sorption and quasi-double-sided sorption under 25 °C and 60% RH. The water uptake was normalized by dividing the equilibrium sorption capacity. D The UV–vis–NIR absorption spectrum of HIPG. E The solar-driven desorption processes of HIPG with sorption equilibrium at 25 °C, 60% RH under the same ambient temperature and RH and different solar irradiation intensities. F The water desorption isobars of HIPG at water vapor pressure of 1.90 and 3.17 kPa. G Thirty water sorption–desorption cycling tests of HIPG at 25 °C, 60% RH (1.90 kPa) for sorption and 90 °C, 4.2% RH (3.17 kPa) for desorption. H The comparison of water sorption performances of bulk HIPG and other state-of-the-art salt-based composite sorbents20,24,29,31,44,48,49. I Psychrometric chart showing the water desorption-condensation processes for the continuous SAWH device with and without solar concentration.

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