Adsorption and thermodynamic behavior of uranium on natural zeolite

S. Olmez Aytas*, S. Akyil, M. Eral

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Makalebilirkişi

90 Atıf (Scopus)

Özet

Adsorptive behavior of natural clinoptilolite-rich zeolite from Balikesir deposites in Turkey was assessed for the removal of uranium from aqueous solutions. The uranium uptake and cation exchange capacities of zeolite were determined. The effect of initial uranium concentrations in solution was studied in detail at the optimum conditions determined before (pH 2.0, contact time: 60 minutes, temperature: 20°C). The uptake equilibrium is best described by Langmuir adsorption isotherm. Some thermodynamic parameters (ΔH°, ΔS°, ΔG°) of the adsorption system were also determined. Application to fixation of uranium to zeolite was performed. The uptake of uranium complex on zeolite followed Langmuir adsorption isotherm for the initial concentration (25 to 100 μg/ml). Thermodynamic values of ΔG°, ΔS° and ΔH° found show the spontaneous and exothermic nature of the process of uranium ions uptake by natural zeolite.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)119-125
Sayfa sayısı7
DergiJournal of Radioanalytical and Nuclear Chemistry
Hacim260
Basın numarası1
DOI'lar
Yayın durumuYayınlandı - 2004
Harici olarak yayınlandıEvet

Finansman

This work was financially supported by Ege University Research Foundation under Contract No: 94 NBE 006.

FinansörlerFinansör numarası
Ege University Research Foundation94 NBE 006

    Parmak izi

    Adsorption and thermodynamic behavior of uranium on natural zeolite' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.

    Alıntı Yap