Parachlorophenol anchored tin antimonate — an inorgano-organic ion-exchanger selective towards heavy metals like Bi(III) and Cu(II) Original Research Article

A new inorgano-organic ion-exchanger p-chlorophenol anchored onto tin antimonate (SnSbpCP) was synthesized, where features of the organic and inorganic components complement each other leading to the formation of a new solid state structure with new composite properties. This type of composite represents a new class of hybrid ion-exchangers with good ion-exchange capacity, higher stability, reproducibility and selectivity for heavy metals. The characterization of the resin was carried out by determining the ion exchange capacity, elemental analysis, pH titration, FT-IR spectra and thermal analysis (TGA). Chemical resistivity of these materials was assessed in several acidic, basic and organic media. The distribution coefficients (Kd) for 10 metal ions were determined in demineralised water. On the basis of difference in Kd values some important binary separations of metal ions were achieved.