Abstract

Polyaniline embedded tin zirconium tungstate composite ion exchange material for the removal of heavy metal ion and organic pollutant from aqueous solution

Author(s): Vinisha P.Valsaraj, C.Janardanan

A new composite material has been synthesized by the incorporation of conducting polymer into the inorganic matrix. It was characterized by using various instrumental techniques. The ion exchange characteristics of material were studied. Physicochemical properties, pH titrations, effect of temperature on the ion exchange capacity, effect of eluent concentration, and elution behavior were studied to exploit the ion-exchange capability of composite. The hybrid material exhibits improved thermal stability. Sorption behaviour of metal ions on the material was studied in different solvents at different concentration. On the basis of distribution values, composite material was found to be selective for Pb(II) ions. Some analytically important binary separation of the metal ions has been achieved on the column of this composite. This composite material has been fruitfully applied for the treatment of heavy metals from synthetic mixture and industrial waste water samples. The UV-Visible spectrophotometric studies revealed the enhanced adsorption ability of this material towards organic pollutants like dyes. The effect of some important parameters such as initial concentration of dye, adsorbent dosage, and contact time on the uptake of organic dye from aqueous solution was also investigated.