Researchers from the University of California in Berkeley (USA) have developed a device capable of extracting and transforming water molecules from air into drinking water, using only surrounding sunlight as a source of energy.
The device utilizes an ultra-porous material called Metal-organic Frameworks (MOF) for repeated extraction of water in the hottest and driest place in North America, Death Valley National Park. The device has demonstrated the ability to provide clean water even in the face of increasing climate changes.
Unlike other materials such as hydrogels, zeolites, or salt, MOF can function efficiently in low humidity conditions, making it a unique solution to combat water scarcity. Its versatility allows for applications in various fields, from drinking water to agriculture.
The device boasts an impressive water collection rate, converting 85% to 90% of captured atmospheric steam into drinking water. It collects approximately 285 grams of water per kilogram of MOF per day, equivalent to a cup of water.
In addition to its energy efficiency and capacity, the device operates without contributing to greenhouse gas emissions, utilizing exclusively solar energy. Its compact size also enables easy portability, even fitting inside a bag. The development team plans to further enhance the device’s effectiveness, size, and scalability. The hope is that these devices will eventually become commonplace, providing households with clean water for drinking and cooking purposes.