Amidoxime-functionalized magnetic graphene oxide-silica particles for adsorption of U(VI) ions from an aqueous medium

BAYRAMOĞLU G., Cimen A. G., Arica M. Y.

Journal of Radioanalytical and Nuclear Chemistry, cilt.333, sa.1, ss.585-597, 2024 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 333 Sayı: 1
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1007/s10967-023-09254-z
  • 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.585-597
  • Anahtar Kelimeler: Amidoxime, Magnetic graphene oxide, Uranium, Adsorption
  • Gazi Üniversitesi Adresli: Evet

Özet

In this work, magnetic graphene oxide particles (MGO) were prepared and grafted with (3-glycidoxypropyl) triethoxysilane (Si). Then, the epoxy groups of MGO@Si were reacted with diamino maleonitrile (DAMN) via a ring-opening reaction. The nitrile groups of DAMN were reacted with hydroxyl amine to generate amidoxime groups on the materials. The zeta potential values of the MGO@Si-DADAO varied between 37.9 to −15.5 mV in the pH range of 2.0–11.0. The adsorption capacity of the MGO@Si-DADAO particles was found to be 641.4 mg/g. Additionally, after 10 adsorptions–desorption cycles, the adsorption capacity of MGO@Si-DADAO particles was not significantly altered.