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<p>The magnetic chitosan beads were prepared and grafted with glycidylmethacrylate, then diaminomelanonitrile (DAMN) was attached. The nitrile groups of DAMN were reacted with hydrazine hydrate hydrochloride and hydrazine hydrate-ethylene diamine to obtain hydrazine (HYD) and imidazole (IMDZ) groups, respectively. Both adsorbents removed uranyl ions from the aqueous medium and seawater. The adsorption capacities of the Fe₃O₄@CHT@p(GMA)-HYD and Fe₃O₄@CHT@p(GMA)-IMDZ, beads were 328.4 and 434.7&#xa0;mg/g, respectively. Both adsorbents have high performance for adsorbing U(VI) ions from seawater. The synthesized adsorbents were used to isolate U(VI) ions from seawater in the presence of various ions.</p>

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Preparation of fibrous polymer grafted magnetic chitosan beads and modified with hydrazone and imidazole groups: isolation of U(VI) ions from seawater

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月29日

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  • Serhad Tilki,
  • Omur Celikbıcak,
  • Ilkay Acıkgoz-Erkaya,
  • Mehmet Yakup Arica,
  • Gulay Bayramoglu

摘要

The magnetic chitosan beads were prepared and grafted with glycidylmethacrylate, then diaminomelanonitrile (DAMN) was attached. The nitrile groups of DAMN were reacted with hydrazine hydrate hydrochloride and hydrazine hydrate-ethylene diamine to obtain hydrazine (HYD) and imidazole (IMDZ) groups, respectively. Both adsorbents removed uranyl ions from the aqueous medium and seawater. The adsorption capacities of the Fe₃O₄@CHT@p(GMA)-HYD and Fe₃O₄@CHT@p(GMA)-IMDZ, beads were 328.4 and 434.7 mg/g, respectively. Both adsorbents have high performance for adsorbing U(VI) ions from seawater. The synthesized adsorbents were used to isolate U(VI) ions from seawater in the presence of various ions.