Efficient solar-driven atmospheric water harvesting in arid regions using a recyclable and biodegradable composite aerogel

The SAWH system developed utilizing a composite PHB/CNTs/MgCl 2 aerogel exhibits exceptional water vapor absorption capacity across a wide range of relative humidities and temperatures, with a desorption rate of 1.8 g g −1 h −1 under 1 sun irradiation.