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Bioinspired asymmetric amphiphilic surface for triboelectric enhanced efficient water harvesting
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Bioinspired asymmetric amphiphilic surface for triboelectric enhanced efficient water harvesting
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Journal Article
Bioinspired asymmetric amphiphilic surface for triboelectric enhanced efficient water harvesting
2022
Overview
The effective acquisition of clean water from atmospheric water offers a potential sustainable solution for increasing global water and energy shortages. In this study, an asymmetric amphiphilic surface incorporating self-driven triboelectric adsorption was developed to obtain clean water from the atmosphere. Inspired by cactus spines and beetle elytra, the asymmetric amphiphilic surface was constructed by synthesizing amphiphilic cellulose ester coatings followed by coating on laser-engraved spines of fluorinated ethylene propylene. Notably, the spontaneous interfacial triboelectric charge between the droplet and the collector was exploited for electrostatic adsorption. Additionally, the droplet triboelectric nanogenerator converts the mechanical energy generated by droplets falling into electrical energy through the volume effect, achieving an excellent output performance, and further enhancing the electrostatic adsorption by means of external charges, which achieved a water harvesting efficiency of 93.18 kg/m
2
h. This strategy provides insights for the design of water harvesting system.
The effective acquisition of clean water from atmospheric water offers a potential sustainable solution for increasing global water shortages. Here, authors developed a bioinspired asymmetric amphiphilic surface incorporating self-driven triboelectric adsorption to obtain clean water.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
