Researchers successfully harvest water from the atmosphere using ambient sunlight.
Korea is regarded as a"water-stressed nation." Although the country receives an annual precipitation of approximately 1,300mm, it is characterized by concentrated periods and specific regions, thereby giving rise to challenges stemming from water scarcity. The lack of drinking water extends beyond mere inconvenience, posing life-threatening implications for certain individuals.
Recently, a joint team of researchers led by Professor Woochul Song from the Division of Environmental Science & Engineering at Pohang University of Science and Technology and Omar M. Yaghi, Professor of Chemistry at UC Berkeley, accomplished successful atmospheric water harvesting using ambient sunlight in the Death Valley desert. The achievement signifies a promising breakthrough in tackling water scarcity as it harnesses an infinite resource without polluting the environment.
During the experiments, the device harvested up to 285g and 210g of water per kilogram of MOF in Berkeley and Death Valley desert respectively. This represents a twofold increase in water production compared to the previous harvesters. Notably, the research team's harvester successfully extracted water without generating any carbon footprint even in the extremely dry weather conditions including the highest temperature of 60 degrees and the average night humidity of 14%.
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