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<p>Nanostructured cerium oxide (CeO<sub>2</sub>) with various morphologies, including nanoparticles, nanorods, and mixture thereof, was synthesized for the purpose of removing uranium (U(VI)) from aqueous solutions. The influence of the morphology of nanostructured CeO<sub>2</sub> on its adsorption performance for uranium was investigated. Additionally, several factors affecting the adsorption experiments—such as pH, initial U(VI) concentration, and contact time—were thoroughly examined. The results demonstrated that nanostructured CeO<sub>2</sub> exhibit rapid (30&#xa0;min to reach equilibrium) and high adsorption capacities (up to 561.22&#xa0;mg⋅g<sup>−1</sup> for nanoparticles, 408.48&#xa0;mg⋅g<sup>−1</sup> for nanorods, and 507.62&#xa0;mg⋅g<sup>−1</sup> for mixture).</p> Graphical abstract <p></p>

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Construction of various nanostructured cerium oxide for highly efficient adsorption of uranium

  • 期刊论文

  • 发表日期：

    2025年8月30日

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  • Guofeng Wang,
  • Yishuo Zhang,
  • Xiaoyan Li,
  • Yibao Liu

摘要

Nanostructured cerium oxide (CeO2) with various morphologies, including nanoparticles, nanorods, and mixture thereof, was synthesized for the purpose of removing uranium (U(VI)) from aqueous solutions. The influence of the morphology of nanostructured CeO2 on its adsorption performance for uranium was investigated. Additionally, several factors affecting the adsorption experiments—such as pH, initial U(VI) concentration, and contact time—were thoroughly examined. The results demonstrated that nanostructured CeO2 exhibit rapid (30 min to reach equilibrium) and high adsorption capacities (up to 561.22 mg⋅g−1 for nanoparticles, 408.48 mg⋅g−1 for nanorods, and 507.62 mg⋅g−1 for mixture).

Graphical abstract