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Synthesis of propenone-linked covalent organic frameworks via Claisen-Schmidt reaction for photocatalytic removal of uranium

Author

Listed:
  • Cheng-Peng Niu

    (Nanchang University)

  • Cheng-Rong Zhang

    (Nanchang University)

  • Xin Liu

    (Nanchang University)

  • Ru-Ping Liang

    (Nanchang University)

  • Jian-Ding Qiu

    (Nanchang University
    East China University of Technology)

Abstract

The type of reactions and the availability of monomers for the synthesis of sp2-c linked covalent organic frameworks (COFs) are considerably limited by the irreversibility of the C=C bond. Herein, inspired by the Claisen-Schmidt condensation reaction, two propenone-linked (C=C–C=O) COFs (named Py-DAB and PyN-DAB) are developed based on the base-catalyzed nucleophilic addition reaction of ketone-activated α-H with aromatic aldehydes. The introduction of propenone structure endows COFs with high crystallinity, excellent physicochemical stability, and intriguing optoelectronic properties. Benefitting from the rational design on the COFs skeleton, Py-DAB and PyN-DAB are applied to the extraction of radionuclide uranium. In particular, PyN-DAB shows excellent removal rates (>98%) in four uranium mine wastewater samples. We highlight that such a general strategy can provide a valuable avenue toward various functional porous crystalline materials.

Suggested Citation

  • Cheng-Peng Niu & Cheng-Rong Zhang & Xin Liu & Ru-Ping Liang & Jian-Ding Qiu, 2023. "Synthesis of propenone-linked covalent organic frameworks via Claisen-Schmidt reaction for photocatalytic removal of uranium," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40169-1
    DOI: 10.1038/s41467-023-40169-1
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    References listed on IDEAS

    as
    1. Wei-Rong Cui & Cheng-Rong Zhang & Wei Jiang & Fang-Fang Li & Ru-Ping Liang & Juewen Liu & Jian-Ding Qiu, 2020. "Regenerable and stable sp2 carbon-conjugated covalent organic frameworks for selective detection and extraction of uranium," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    2. Ya-Jie Li & Wei-Rong Cui & Qiao-Qiao Jiang & Qiong Wu & Ru-Ping Liang & Qiu-Xia Luo & Jian-Ding Qiu, 2021. "Author Correction: A general design approach toward covalent organic frameworks for highly efficient electrochemiluminescence," Nature Communications, Nature, vol. 12(1), pages 1-1, December.
    3. Ya-Jie Li & Wei-Rong Cui & Qiao-Qiao Jiang & Qiong Wu & Ru-Ping Liang & Qiu-Xia Luo & Jian-Ding Qiu, 2021. "A general design approach toward covalent organic frameworks for highly efficient electrochemiluminescence," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
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