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

Tilki S., ÇELİKBIÇAK Ö., Acıkgoz-Erkaya I., Arica M. Y., BAYRAMOĞLU G.

Journal of Radioanalytical and Nuclear Chemistry, cilt.334, sa.5, ss.3319-3334, 2025 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 334 Sayı: 5
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1007/s10967-025-10065-7
  • Dergi Adı: Journal of Radioanalytical and Nuclear Chemistry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Analytical Abstracts, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Food Science & Technology Abstracts, INSPEC, Metadex, Pollution Abstracts, Public Affairs Index, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.3319-3334
  • Anahtar Kelimeler: Adsorption, Chitosan-based adsorbent, Isotherms and Kinetics, Surface modification, Uranium
  • Gazi Üniversitesi Adresli: Evet

Özet

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.