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Bioinspired asymmetric amphiphilic surface for triboelectric enhanced efficient water harvesting

Author

Listed:
  • Song Zhang

    (Guangxi University)

  • Mingchao Chi

    (Guangxi University)

  • Jilong Mo

    (Guangxi University)

  • Tao Liu

    (Guangxi University)

  • Yanhua Liu

    (Guangxi University)

  • Qiu Fu

    (Guangxi University)

  • Jinlong Wang

    (Guangxi University)

  • Bin Luo

    (Guangxi University)

  • Ying Qin

    (Guangxi University)

  • Shuangfei Wang

    (Guangxi University)

  • Shuangxi Nie

    (Guangxi University)

Abstract

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/m2 h. This strategy provides insights for the design of water harvesting system.

Suggested Citation

  • Song Zhang & Mingchao Chi & Jilong Mo & Tao Liu & Yanhua Liu & Qiu Fu & Jinlong Wang & Bin Luo & Ying Qin & Shuangfei Wang & Shuangxi Nie, 2022. "Bioinspired asymmetric amphiphilic surface for triboelectric enhanced efficient water harvesting," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-31987-w
    DOI: 10.1038/s41467-022-31987-w
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    References listed on IDEAS

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