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

摘要

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 (K_d) for 10 metal ions were determined in demineralised water. On the basis of difference in K_d values some important binary separations of metal ions were achieved.