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Bio-inspired nano-traps for uranium extraction from seawater and recovery from nuclear waste

Author

Listed:
  • Qi Sun

    (University of South Florida)

  • Briana Aguila

    (University of South Florida)

  • Jason Perman

    (University of South Florida)

  • Aleksandr S. Ivanov

    (Oak Ridge National Laboratory)

  • Vyacheslav S. Bryantsev

    (Oak Ridge National Laboratory)

  • Lyndsey D. Earl

    (Oak Ridge National Laboratory)

  • Carter W. Abney

    (Oak Ridge National Laboratory)

  • Lukasz Wojtas

    (University of South Florida)

  • Shengqian Ma

    (University of South Florida)

Abstract

Nature can efficiently recognize specific ions by exerting second-sphere interactions onto well-folded protein scaffolds. However, a considerable challenge remains to artificially manipulate such affinity, while being cost-effective in managing immense amounts of water samples. Here, we propose an effective approach to regulate uranyl capture performance by creating bio-inspired nano-traps, illustrated by constructing chelating moieties into porous frameworks, where the binding motif’s coordinative interaction towards uranyl is enhanced by introducing an assistant group, reminiscent of biological systems. Representatively, the porous framework bearing 2-aminobenzamidoxime is exceptional in sequestering high uranium concentrations with sufficient capacities (530 mg g−1) and trace quantities, including uranium in real seawater (4.36 mg g−1, triple the benchmark). Using a combination of spectroscopic, crystallographic, and theory calculation studies, it is revealed that the amino substituent assists in lowering the charge on uranyl in the complex and serves as a hydrogen bond acceptor, boosting the overall uranyl affinity of amidoxime.

Suggested Citation

  • Qi Sun & Briana Aguila & Jason Perman & Aleksandr S. Ivanov & Vyacheslav S. Bryantsev & Lyndsey D. Earl & Carter W. Abney & Lukasz Wojtas & Shengqian Ma, 2018. "Bio-inspired nano-traps for uranium extraction from seawater and recovery from nuclear waste," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04032-y
    DOI: 10.1038/s41467-018-04032-y
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    Cited by:

    1. Zeyu Liu & Youshi Lan & Jianfeng Jia & Yiyun Geng & Xiaobin Dai & Litang Yan & Tongyang Hu & Jing Chen & Krzysztof Matyjaszewski & Gang Ye, 2022. "Multi-scale computer-aided design and photo-controlled macromolecular synthesis boosting uranium harvesting from seawater," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    2. Qing Yun Zhang & Lin Juan Zhang & Jian Qiu Zhu & Le Le Gong & Zhe Cheng Huang & Feng Gao & Jian Qiang Wang & Xian Qing Xie & Feng Luo, 2024. "Ultra-selective uranium separation by in-situ formation of π-f conjugated 2D uranium-organic framework," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    3. Xinming Xia & Feng Zhou & Jing Xu & Zhongteng Wang & Jian Lan & Yan Fan & Zhikun Wang & Wei Liu & Junlang Chen & Shangshen Feng & Yusong Tu & Yizhou Yang & Liang Chen & Haiping Fang, 2022. "Unexpectedly efficient ion desorption of graphene-based materials," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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