A device to obtain water from air even in the desert was created

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The system Wang and her students designed consists of a kilogram of dust-sized MOF crystals pressed into a thin sheet of porous copper metal. That sheet is placed between a solar absorber and a condenser plate and positioned inside a chamber. At night the chamber is opened, allowing ambient air to diffuse through the porous MOF and water molecules to stick to its interior surfaces. In the morning, the chamber is closed, and sunlight entering through a window on top of the device then heats up the MOF, which liberates the water droplets. It’s estimated that future water harvesters will be cheap enough not only to slake the thirst of people in arid regions, but perhaps even supply water to farmers in the desert.

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