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Super hygroscopic nanofibrous membrane-based moisture pump for solar-driven indoor dehumidification

Author

Listed:
  • Yufei Zhang

    (Donghua University)

  • Lei Wu

    (Wuyi University)

  • Xianfeng Wang

    (Donghua University
    Donghua University)

  • Jianyong Yu

    (Donghua University)

  • Bin Ding

    (Donghua University
    Donghua University)

Abstract

Desiccants play vital roles in dehumidification and atmospheric water harvesting; however, current desiccants have mediocre hygroscopicity, limited recyclability, and high energy consumption. Herein, we report a wood-inspired moisture pump based on electrospun nanofibrous membrane for solar-driven continuous indoor dehumidification. The developed moisture pump with multilayer wood-like cellular networks and interconnected open channels is composed of a desiccant layer and a photothermal layer. The desiccant layer exhibits an unprecedented moisture absorption capacity of 3.01 g g−1 at 90% relative humidity (RH), fast moisture absorption and transport rates, enabling atmospheric water harvesting. The photothermal layer shows a high solar absorption of 93%, efficient solar thermal conversion, and good moisture permeability, thus promoting water evaporation. The moisture pump efficiently reduces the indoor relative humidity to a comfort level (40‒60% RH) under one-sun illumination. This work opens the way to develop new-generation, high-performance nanofibrous membrane-based desiccants for energy-efficient humidity control and atmospheric water harvesting.

Suggested Citation

  • Yufei Zhang & Lei Wu & Xianfeng Wang & Jianyong Yu & Bin Ding, 2020. "Super hygroscopic nanofibrous membrane-based moisture pump for solar-driven indoor dehumidification," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17118-3
    DOI: 10.1038/s41467-020-17118-3
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    Cited by:

    1. Zeng, Ziya & Zhao, Bingchen & Chen, Weidong & Ernest Chua, Kian Jon & Wang, Ruzhu, 2023. "Strategies of stable thermal output and humidity dual control for a packed-bed adsorption thermal battery," Energy, Elsevier, vol. 278(PA).
    2. Ge, Lurong & Feng, Yaohui & Wu, Jiarong & Wang, Ruzhu & Ge, Tianshu, 2024. "Performance evaluation of MIL-101(Cr) based desiccant-coated heat exchangers for efficient dehumidification," Energy, Elsevier, vol. 289(C).
    3. Shan, He & Poredoš, Primož & Zou, Hao & Lv, Haotian & Wang, Ruzhu, 2023. "Perspectives for urban microenvironment sustainability enabled by decentralized water-energy-food harvesting," Energy, Elsevier, vol. 282(C).
    4. Harrouz, Jean Paul & Ghali, Kamel & Keniar, Khoudor & Ghaddar, Nesreen, 2023. "Numerical and experimental investigation of thermosyphon-driven liquid desiccant loop performance for sustainable indoor humidity removal," Applied Energy, Elsevier, vol. 343(C).

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