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Regenerable and stable sp2 carbon-conjugated covalent organic frameworks for selective detection and extraction of uranium

Author

Listed:
  • Wei-Rong Cui

    (Nanchang University)

  • Cheng-Rong Zhang

    (Nanchang University)

  • Wei Jiang

    (Nanchang University)

  • Fang-Fang Li

    (Nanchang University)

  • Ru-Ping Liang

    (Nanchang University)

  • Juewen Liu

    (University of Waterloo, Waterloo)

  • Jian-Ding Qiu

    (Nanchang University)

Abstract

Uranium is a key element in the nuclear industry, but its unintended leakage has caused health and environmental concerns. Here we report a sp2 carbon-conjugated fluorescent covalent organic framework (COF) named TFPT-BTAN-AO with excellent chemical, thermal and radiation stability is synthesized by integrating triazine-based building blocks with amidoxime-substituted linkers. TFPT-BTAN-AO shows an exceptional UO22+ adsorption capacity of 427 mg g−1 attributable to the abundant selective uranium-binding groups on the highly accessible pore walls of open 1D channels. In addition, it has an ultra-fast response time (2 s) and an ultra-low detection limit of 6.7 nM UO22+ suitable for on-site and real-time monitoring of UO22+, allowing not only extraction but also monitoring the quality of the extracted water. This study demonstrates great potential of fluorescent COFs for radionuclide detection and extraction. By rational designing target ligands, this strategy can be extended to the detection and extraction of other contaminants.

Suggested Citation

  • 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.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-14289-x
    DOI: 10.1038/s41467-020-14289-x
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    Cited by:

    1. Cheng-Rong Zhang & Wei-Rong Cui & Shun-Mo Yi & Cheng-Peng Niu & Ru-Ping Liang & Jia-Xin Qi & Xiao-Juan Chen & Wei Jiang & Xin Liu & Qiu-Xia Luo & Jian-Ding Qiu, 2022. "An ionic vinylene-linked three-dimensional covalent organic framework for selective and efficient trapping of ReO4− or 99TcO4−," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. 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.
    3. Gobinda Das & Bikash Garai & Thirumurugan Prakasam & Farah Benyettou & Sabu Varghese & Sudhir Kumar Sharma & Felipe Gándara & Renu Pasricha & Maria Baias & Ramesh Jagannathan & Na’il Saleh & Mourad El, 2022. "Fluorescence turn on amine detection in a cationic covalent organic framework," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    4. Zhongshan Chen & Jingyi Wang & Mengjie Hao & Yinghui Xie & Xiaolu Liu & Hui Yang & Geoffrey I. N. Waterhouse & Xiangke Wang & Shengqian Ma, 2023. "Tuning excited state electronic structure and charge transport in covalent organic frameworks for enhanced photocatalytic performance," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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