Super Hygroscopic Polymer Film Can Harvest Water from Arid Air

  • 01.06.2022
  • SCI News

Researchers at the University of Texas at Austin have developed a low-cost polymer film made of renewable biomass and hygroscopic salt that can extract atmospheric water in arid environments; these materials cost a mere $2 per kilogram, and a single kilogram can produce more than 6 liters of water per day in areas with less than 15% relative humidity and 13 liters in areas with up to 30% relative humidity.