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<p>This study successfully fabricated a novel magnetic nanocomposite (PB/Fe<sub>3</sub>O<sub>4</sub>/PACR) by loading Prussian blue (PB) functionalized magnetic nanoparticles onto polyaluminum chloride waste residue (PACR) for the efficient removal of uranium (U(VI)) from aqueous solutions. The composite demonstrated exceptional adsorption performance, with experimentally determined maximum adsorption capacity of 620.2&#xa0;mg&#xa0;g<sup>−1</sup> and a removal efficiency exceeding 98%. The adsorption process followed a pseudo-second-order kinetic model, suggesting a chemisorption mechanism, and the Freundlich isotherm. Moreover, the material retained over 85% of its initial efficiency after five consecutive adsorption–desorption cycles, highlighting its excellent reusability and stability. This work provides a feasible strategy for transforming industrial waste into an effective, low-cost, and environmentally benign adsorbent for radioactive wastewater remediation.</p>

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Magnetic Prussian Blue nanosorbent loading on polyaluminum chloride waste residue for specific removal of U(Ⅵ)

  • 期刊论文

  • 发表日期：

    2026年6月3日

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  • Guodong Zhao,
  • Demiao Li,
  • Bingshi Chen,
  • Qing Liu

摘要

This study successfully fabricated a novel magnetic nanocomposite (PB/Fe3O4/PACR) by loading Prussian blue (PB) functionalized magnetic nanoparticles onto polyaluminum chloride waste residue (PACR) for the efficient removal of uranium (U(VI)) from aqueous solutions. The composite demonstrated exceptional adsorption performance, with experimentally determined maximum adsorption capacity of 620.2 mg g−1 and a removal efficiency exceeding 98%. The adsorption process followed a pseudo-second-order kinetic model, suggesting a chemisorption mechanism, and the Freundlich isotherm. Moreover, the material retained over 85% of its initial efficiency after five consecutive adsorption–desorption cycles, highlighting its excellent reusability and stability. This work provides a feasible strategy for transforming industrial waste into an effective, low-cost, and environmentally benign adsorbent for radioactive wastewater remediation.