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Zwitterionic functionalized catalytic evaporator enables simultaneous solar distillation and organic pollutant degradation

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Listed:
  • Wen, Chiyu
  • Yang, Jing
  • Guo, Hongshuang
  • Li, Qingsi
  • Zhang, Xiangyu
  • Wang, Xiaodong
  • Cao, Moyuan
  • Zhang, Lei

Abstract

Solar distillation is regarded as a nearly ideal sustainable technology for clean water generation. However, micro- and macro-foulers live in the natural water and volatile organic compounds induced by overdischarging of wastewater are still the main challenges of solar distillation. Herein, a compositive strategy is presented to fabricate self-floatable catalytic evaporators with both solar distillation and organic pollutant degradation, through Fe MOF-loaded electrospinning and antibiofouling zwitterionic coating. The obtained catalytic evaporator with a fibrous structure can lead to enhanced solar distillation rate (1.43 kg m-2h−1) and conversion efficiency (89.41%). More importantly, the zwitterionic hydrogel coating endows the evaporator with superhydrophilicity for continuous water pumping and fascinating multi-contamination repellence against bacteria, alga, oil and salt, and the Fe MOF enables organic pollutants decomposition via photo-Fenton reaction. The currently designed catalytic evaporator integrates the above merits and is expected to provide a new dimension for the designing of multifunctional solar evaporation devices, solving the device contamination and organic residue issues in water treatment.

Suggested Citation

  • Wen, Chiyu & Yang, Jing & Guo, Hongshuang & Li, Qingsi & Zhang, Xiangyu & Wang, Xiaodong & Cao, Moyuan & Zhang, Lei, 2022. "Zwitterionic functionalized catalytic evaporator enables simultaneous solar distillation and organic pollutant degradation," Applied Energy, Elsevier, vol. 321(C).
    • Handle: RePEc:eee:appene:v:321:y:2022:i:c:s0306261922007152
    DOI: 10.1016/j.apenergy.2022.119372
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    References listed on IDEAS

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