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Microporous polymer adsorptive membranes with high processing capacity for molecular separation

Author

Listed:
  • Zhenggong Wang

    (Soochow University)

  • Xiaofan Luo

    (Chinese Academy of Sciences)

  • Zejun Song

    (Chinese Academy of Sciences)

  • Kuan Lu

    (Chinese Academy of Sciences)

  • Shouwen Zhu

    (Soochow University)

  • Yanshao Yang

    (Chinese Academy of Sciences)

  • Yatao Zhang

    (Zhengzhou University)

  • Wangxi Fang

    (Chinese Academy of Sciences)

  • Jian Jin

    (Soochow University)

Abstract

Trade-off between permeability and nanometer-level selectivity is an inherent shortcoming of membrane-based separation of molecules, while most highly porous materials with high adsorption capacity lack solution processability and stability for achieving adsorption-based molecule separation. We hereby report a hydrophilic amidoxime modified polymer of intrinsic microporosity (AOPIM-1) as a membrane adsorption material to selectively adsorb and separate small organic molecules from water with ultrahigh processing capacity. The membrane adsorption capacity for Rhodamine B reaches 26.114 g m−2, 10–1000 times higher than previously reported adsorptive membranes. Meanwhile, the membrane achieves >99.9% removal of various nano-sized organic molecules with water flux 2 orders of magnitude higher than typical pressure-driven membranes of similar rejections. This work confirms the feasibility of microporous polymers for membrane adsorption with high capacity, and provides the possibility of adsorptive membranes for molecular separation.

Suggested Citation

  • Zhenggong Wang & Xiaofan Luo & Zejun Song & Kuan Lu & Shouwen Zhu & Yanshao Yang & Yatao Zhang & Wangxi Fang & Jian Jin, 2022. "Microporous polymer adsorptive membranes with high processing capacity for molecular separation," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
  • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-31575-y
    DOI: 10.1038/s41467-022-31575-y
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    References listed on IDEAS

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    1. Alaaeddin Alsbaiee & Brian J. Smith & Leilei Xiao & Yuhan Ling & Damian E. Helbling & William R. Dichtel, 2016. "Rapid removal of organic micropollutants from water by a porous β-cyclodextrin polymer," Nature, Nature, vol. 529(7585), pages 190-194, January.
    2. David S. Sholl & Ryan P. Lively, 2016. "Seven chemical separations to change the world," Nature, Nature, vol. 532(7600), pages 435-437, April.
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    Cited by:

    1. Laigang Hu & Wenhao Wu & Min Hu & Ling Jiang & Daohui Lin & Jian Wu & Kun Yang, 2024. "Double-walled Al-based MOF with large microporous specific surface area for trace benzene adsorption," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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