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Removal of Cesium on Polyaniline Titanotungstate as Composite Ion Exchanger

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DOI: 10.4236/aces.2012.21020    5,667 Downloads   10,325 Views   Citations

ABSTRACT

Polyaniline titanotungstate (PATiW) was synthesized by the sol-gel method. Adsorption isotherm studies of Cs+ from aqueous solution are described. Elemental Composition, chemical solubility, ion-exchange capacity (IEC) and pH titration are studied. Distribution coefficients (Kd) for ten metal ions have been determined. It was found that the polyaniline titanotungstate has high affinity and high selectivity for Cs+. The material was high separation of Cs+ from other metal ions. The adsorbent capacity was determined using the Freundlich and Langmuir adsorption isotherm models. The Cs+ adsorption isotherm data fit best to the Freundlich isotherm model. The maximum Cs+ uptake of polyaniline titanotungstate was found 217 mg/g. A column tests were performed to determine the breakthrough curves with varying bed depths and flow rates in different solutions. The results show that the half breakthrough time increases proportionally with increasing bed depths. Kinetic studies for removal cesium from milk were investigated.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

I. El-Naggar, E. Zakaria, I. Ali, M. Khalil and M. El-Shahat, "Removal of Cesium on Polyaniline Titanotungstate as Composite Ion Exchanger," Advances in Chemical Engineering and Science, Vol. 2 No. 1, 2012, pp. 166-179. doi: 10.4236/aces.2012.21020.

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