Modelling and Optimization of Uranium (VI) Ions Adsorption Onto Nano-ZnO/Chitosan Bio-composite Beads with Response Surface Methodology (RSM)

Kaynar Ü. H., ÇINAR S., ÇAM KAYNAR S., AYVACIKLI M., AYDEMİR T.

Journal of Polymers and the Environment, cilt.26, sa.6, ss.2300-2310, 2018 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26 Sayı: 6
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1007/s10924-017-1125-z
  • Dergi Adı: Journal of Polymers and the Environment
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2300-2310
  • Anahtar Kelimeler: Adsorption, Bio-composite beads, Nano-ZnO/Chitosan, Response surface methodology, Uranium
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

Nano-ZnO-chitosan bio-composite beads were prepared for the sorption of UO22+ from aqueous media. The resulting nano-ZnO/CTS bio-composite beads were characterized by TEM, XRD etc. The sorption of UO22+ by bio-composite beads was optimized using RSM. The correlation between four variables was modelled and studied. According to RSM data, correlation coefficients (R2 = 0.99) and probability F-values (F = 2.24 × 10− 10) show that the model fits the experimental data well. Adsorption capacity for nano-ZnO/CTS bio-composite beads was obtained at 148.7 mg/g under optimum conditions. The results indicate that nano-ZnO/CTS bio-composite beads are appropriate for the adsorption of UO22+ ions from aqueous media. Also, the suitability of adsorption values to adsorption isotherms was researched and thermodynamic data were calculated.