Adsorption of Uranium (VI) on organic cation-moded kula volcanite and optimization with surface response method (RSM)

Year 2023, , 248 - 258, 23.11.2023

Ümit Hüseyin Kaynar

https://doi.org/10.29233/sdufeffd.1265417

Abstract

First of all, the structural characteristics of the prepared HDTMA-volcanite. such as XRF, SEM and BET surface area were examined, then uranium U(VI) adsorption from aqueous solutions was optimized by surface response method (RSM), which is widely used in industrial research. . Effective experimental conditions on adsorption efficiency: pH (3-8), time (30-150 minutes), uranium concentration (20-80 mg/L) and temperature (20-60 °C) were selected. The best possible combinations of these parameters were obtained by the surface response method (RSM). The central composite design (CCD) was chosen for the design of the experimental conditions. According to the RSM results, it was determined that the experimental design fit the quadratic model, and the R2 and R2adj values, which are the parameters showing the model fit, were 0.98 and 0.95, respectively. HDTMA-Volk at optimum conditions. Adsorption capacity was obtained as 4.41 mg/g for the HDTMA-Volcanics at optimum conditions. The compatibility of the obtained data with adsorption isotherms was investigated, and thermodynamic parameters were calculated.

Keywords

Uranium (VI), Response Surface Methodology (RSM), Adsorption, Volcanitcs

Organik katyonla modifiye edilen kula volkaniti üzerine uranyum (VI) adsorpsiyonu ve yüzey yanıt yöntemi (YYM) ile optimizasyonu

Abstract

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