Modelling and Optimization of Uranium (VI) Ions Adsorption Onto Nano-ZnO/Chitosan Bio-composite Beads with Response Surface Methodology (RSM) |
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| Authors: | Ümit H. Kaynar Seda Çınar Sermin Çam Kaynar Mehmet Ayvacıklı Tülin Aydemir |
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| Affiliation: | 1.Education Faculty, Primary School Science Teaching,Celal Bayar University,Manisa,Turkey;2.Department of Chemistry,Celal Bayar University,Manisa,Turkey;3.Department of Physics,Celal Bayar University,Manisa,Turkey |
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| Abstract: | Nano-ZnO-chitosan bio-composite beads were prepared for the sorption of ({text{UO}}_{2}^{{2+}}) from aqueous media. The resulting nano-ZnO/CTS bio-composite beads were characterized by TEM, XRD etc. The sorption of ({text{UO}}_{2}^{{2+}}) 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 ({text{UO}}_{2}^{{2+}}) ions from aqueous media. Also, the suitability of adsorption values to adsorption isotherms was researched and thermodynamic data were calculated. |
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