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Synthesis of amidoximated polyacrylonitrile/sodium alginate composite hydrogel beed and its use in selective and recyclable removal of U(VI)

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Abstract

In this study, a novel type of composite hydrogel bead (PSH) was prepared by mixing of amidoximated polyacrylonitrile (PAO) and sodium alginate (SA). The structure of PSH was characterized with FT-IR, SEM and XPS. The influences of adsorption conditions on uranium(VI) adsorption by PSH were investigated by batch experiments. The kinetic and isotherm data were consistent with pseudo-second-order and Langmuir models, respectively. PSH displayed high selective adsorption capacity for uranium(VI). The maximum adsorption amount can reach 133.33 mg g−1. PSH was separated from aqueous solution easy and showed an excellent regeneration capacity. This research demonstrated that PSH had a broad prospect of application in the field of repairing uranium-containing wastewater.

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Acknowledgements

This research was supported by the National Natural Science Foundation of China (12175103), the Key R&D Program of Hunan Province (2018SK2029), the Hunan Provincial Natural Science Foundation for Excellent Young Scholars (2020JJ3028), and the Scientific Research Innovation Project for Graduate of Hunan Province (CX20200913), Scientific Research Fund of Hunan Provincial Education Department (21A0259).

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Authors and Affiliations

  1. School of Public Health, University of South China, Hengyang, 421001, People’s Republic of China

    Bingyu Zhu, Le Li, Deshuai Zhen, Lin Sun, Lei Chen, Chen Tuo & Ziwei Tang

  2. Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, University of South China, Hengyang, 421001, People’s Republic of China

    Le Li & Zhongran Dai

  3. Key Laboratory of Health Hazard Factors Inspection and Quarantine, University of South China, Hengyang, 421001, People’s Republic of China

    Bingyu Zhu, Le Li, Deshuai Zhen, Lin Sun, Lei Chen, Chen Tuo & Ziwei Tang

  4. Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, People’s Republic of China

    Le Li

  5. Institute of Pathogenic Biology, University of South China, Hengyang, 421001, People’s Republic of China

    Shuangyang Tang

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  1. Bingyu Zhu
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Zhu, B., Li, L., Dai, Z. et al. Synthesis of amidoximated polyacrylonitrile/sodium alginate composite hydrogel beed and its use in selective and recyclable removal of U(VI). J Radioanal Nucl Chem 331, 1669–1682 (2022). https://doi.org/10.1007/s10967-022-08233-0

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