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Graphite phase carbon nitride based membrane for selective permeation

Author

Listed:
  • Yang Wang

    (University of Science and Technology of China)

  • Niannian Wu

    (University of Science and Technology of China)

  • Yan Wang

    (University of Science and Technology of China)

  • Huan Ma

    (University of Science and Technology of China)

  • Junxiang Zhang

    (University of Science and Technology of China)

  • Lili Xu

    (University of Science and Technology of China)

  • Mohamed K. Albolkany

    (University of Science and Technology of China)

  • Bo Liu

    (University of Science and Technology of China)

Abstract

Precise control of interlayer spacing and functionality is crucial in two-dimensional material based membrane separation technology. Here we show anion intercalation in protonated graphite phase carbon nitride (GCN) that tunes the interlayer spacing and functions of GCN-based membranes for selective permeation in aqueous/organic solutions. Sulfate anion intercalation leads to a crystalline and amphipathic membrane with an accessible interlayer spacing at ~10.8 Å, which allows high solvent permeability and sieves out the solutes with sizes larger than the spacing. We further extend the concept and illustrate the example of GCN-based chiral membrane via incorporating (1R)-(-)-10-camphorsulfonic anion into protonated GCN layers. The membrane exhibits a molecular weight cutoff around 150 among various enantiomers and highly enantioselective permeation towards limonene racemate with an enantiomeric excess value of 89%. This work paves a feasible way to achieve water purification and chiral separation technologies using decorated laminated membranes.

Suggested Citation

  • Yang Wang & Niannian Wu & Yan Wang & Huan Ma & Junxiang Zhang & Lili Xu & Mohamed K. Albolkany & Bo Liu, 2019. "Graphite phase carbon nitride based membrane for selective permeation," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10381-z
    DOI: 10.1038/s41467-019-10381-z
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    Cited by:

    1. Yang Wang & Tingting Lian & Nadezda V. Tarakina & Jiayin Yuan & Markus Antonietti, 2022. "Lamellar carbon nitride membrane for enhanced ion sieving and water desalination," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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