Bioinspired asymmetric amphiphilic surface for triboelectric enhanced efficient water harvesting

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 a...

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Bibliographic Details
Published in:Nature communications 2022-07, Vol.13 (1), p.4168-4168, Article 4168
Main Authors: Zhang, Song, Chi, Mingchao, Mo, Jilong, Liu, Tao, Liu, Yanhua, Fu, Qiu, Wang, Jinlong, Luo, Bin, Qin, Ying, Wang, Shuangfei, Nie, Shuangxi
Format: Article
Language:English
Subjects:
639/166/988
639/301/1005/1007
639/301/54/989
639/301/923/1030
639/766/25
Adsorption
Asymmetry
Atmospheric water
Cellulose
Cellulose esters
Droplets
Elytra
Energy
Engraving
Fluorinated ethylene propylenes
Humanities and Social Sciences
multidisciplinary
Nanogenerators
Science
Science (multidisciplinary)
Surface chemistry
Water harvesting
Water shortages
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Summary: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.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-022-31987-w