High-efficiency atmospheric water harvesting enabled by ultrasonic extraction

Ikra Iftekhar Shuvo, Carlos D. Díaz-Marín, Marvin Christen, Michael Lherbette, Christopher Liem and Svetlana V. Boriskina ()
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Ikra Iftekhar Shuvo: Massachusetts Institute of Technology
Carlos D. Díaz-Marín: Massachusetts Institute of Technology
Marvin Christen: SmarAct Metrology GmbH & Co. KG
Michael Lherbette: SmarAct Metrology GmbH & Co. KG
Christopher Liem: Massachusetts Institute of Technology
Svetlana V. Boriskina: Massachusetts Institute of Technology

Nature Communications, 2025, vol. 16, issue 1, 1-17

Abstract: Abstract Atmospheric water harvesting technology, which extracts moisture from ambient air to generate water, is a promising strategy to realize decentralized water production. However, the prohibitively high energy consumption of heat-induced evaporation process of water extraction hinders the technology deployment. Here we demonstrate that vibrational mechanical actuation can be used instead of heat to extract water from moisture harvesting materials, offering about forty-five-fold increase in the extraction energy efficiency. We report the energy consumption for water extraction below the enthalpy of water evaporation, thus breaking the thermal limit of the energy efficiency inherent to the state-of-the-art thermal evaporation and making atmospheric water harvesting technology economically feasible for adoption on scale.

Date: 2025
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DOI: 10.1038/s41467-025-65586-2

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