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Creating amphiphilic porosity in two-dimensional covalent organic frameworks via steric-hindrance-mediated precision hydrophilic-hydrophobic microphase separation

Author

Listed:
  • Shu-Yan Jiang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Zhi-Bei Zhou

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Shi-Xian Gan

    (Chinese Academy of Sciences)

  • Ya Lu

    (Chinese Academy of Sciences)

  • Chao Liu

    (Chinese Academy of Sciences)

  • Qiao-Yan Qi

    (Chinese Academy of Sciences)

  • Jin Yao

    (Chinese Academy of Sciences)

  • Xin Zhao

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

Creating different pore environments within a covalent organic framework (COF) will lead to useful multicompartment structure and multiple functions, which however has been scarcely achieved. Herein we report designed synthesis of three two-dimensional COFs with amphiphilic porosity by steric-hindrance-mediated precision hydrophilic-hydrophobic microphase separation. Dictated by the different steric effect of the substituents introduced to a monomer, dual-pore COFs with kgm net, in which all hydroxyls locate in trigonal micropores while hydrophobic sidechains exclusively distribute in hexagonal mesopores, have been constructed to form completely separated hydrophilic and hydrophobic nanochannels. The unique amphiphilic channels in the COFs enable the formation of Janus membranes via interface growth. This work has realized the creation of two types of channels with opposite properties in one COF, demonstrating the feasibility of introducing different properties/functions into different pores of heteropore COFs, which can be a useful strategy to develop multifunctional materials.

Suggested Citation

  • Shu-Yan Jiang & Zhi-Bei Zhou & Shi-Xian Gan & Ya Lu & Chao Liu & Qiao-Yan Qi & Jin Yao & Xin Zhao, 2024. "Creating amphiphilic porosity in two-dimensional covalent organic frameworks via steric-hindrance-mediated precision hydrophilic-hydrophobic microphase separation," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-44890-3
    DOI: 10.1038/s41467-024-44890-3
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    References listed on IDEAS

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    1. Xinle Li & Changlin Zhang & Songliang Cai & Xiaohe Lei & Virginia Altoe & Fang Hong & Jeffrey J. Urban & Jim Ciston & Emory M. Chan & Yi Liu, 2018. "Facile transformation of imine covalent organic frameworks into ultrastable crystalline porous aromatic frameworks," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    2. Tanmay Banerjee & Frederik Haase & Stefan Trenker & Bishnu P. Biswal & Gökcen Savasci & Viola Duppel & Igor Moudrakovski & Christian Ochsenfeld & Bettina V. Lotsch, 2019. "Sub-stoichiometric 2D covalent organic frameworks from tri- and tetratopic linkers," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    3. Changxia Li & Jin Yang & Pradip Pachfule & Shuang Li & Meng-Yang Ye & Johannes Schmidt & Arne Thomas, 2020. "Ultralight covalent organic framework/graphene aerogels with hierarchical porosity," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    4. Rong-Ran Liang & Shun-Qi Xu & Lei Zhang & Ru-Han A & Pohua Chen & Fu-Zhi Cui & Qiao-Yan Qi & Junliang Sun & Xin Zhao, 2019. "Rational design of crystalline two-dimensional frameworks with highly complicated topological structures," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
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