Magnetically Induced Fog Harvesting via Flexible Conical Arrays |
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| Authors: | Yun Peng Yaxu He Shuai Yang Shuang Ben Moyuan Cao Kan Li Kesong Liu Lei Jiang |
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| Affiliation: | 1. Key Laboratory of Bio‐Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio‐Inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing, P. R. China;2. Laboratory of Bio‐Inspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, P. R. China |
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| Abstract: | Water is the driving force of all nature. Securing freshwater has been one of the most important issues throughout human history, and will be important in the future, especially in the next decade. Fog is ubiquitous in nature and is therefore considered as an alternative and sustainable freshwater resource. Nature has long served as a source of inspiration to develop new fog‐harvesting technologies. However, the collection of freshwater from static fog is still a challenge for the existing bio‐inspired fog‐harvesting systems. Herein, magnetically induced fog harvesting under windless conditions through the integration of cactus‐inspired spine structures and magnetically responsive flexible conical arrays is reported. Under an external magnetic field, static fog can be spontaneously and continuously captured and transported from the tip to the base of the spine due to the Laplace pressure difference. This work demonstrates the advantage of collecting fog water, especially in windless regions, which provides a new avenue for fog harvesting and can serve as a source of inspiration to further optimizations of existing fog‐water‐harvesting strategies. |
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| Keywords: | bio‐inspired materials fog collectors fog harvesting responsive materials |
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