Application of kaolinite-based composite as an adsorbent for removal of uranyl ions from aqueous solution: kinetics and equilibrium study

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Şenol Z. M., Keskin Z. S., Özer A., Şimşek S.

Journal of Radioanalytical and Nuclear Chemistry, cilt.331, sa.1, ss.403-414, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 331 Sayı: 1
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1007/s10967-021-08070-7
  • 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, EMBASE, Food Science & Technology Abstracts, INSPEC, Metadex, Pollution Abstracts, Public Affairs Index, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.403-414
  • Anahtar Kelimeler: Kaolinite, Polyacrylamide, Composite, Uranyl removal, Wastewater treatment, ADSORPTION, URANIUM, CHITOSAN, ACID
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

© 2021, Akadémiai Kiadó, Budapest, Hungary.Polyacrylamide (PAA)-kaolinite (K) composite adsorbent was synthesized using K and PAA hydrogel, in-situ polymerization method as synthesis method. Adsorbent performance of the PAA-K composite for UO22+ ions was optimized: 400 mg L−1 at pH 4.5 at 25 °C. Synthesized PAA-K composite was featured by FT-IR, SEM–EDX, and XRD techniques. The maximum UO22+ ions adsorption capacity of the PAA-K composite was found to be 0.0656 mol kg−1. Thermodynamic parameters demonstrated that the behaviour of the adsorption was an endothermic and spontaneous. Finally, adsorption process suggested that the PAA-K composite had a significant adsorption capacity for the UO22+ ions.