Adsorption Behavior of Cobalt and Chromium by Using Polyacrylamide Sn(IV) Molybdophosphate

A hybrid type of ion exchanger polyacrylamide Sn(IV) molybdophosphate has been synthesized by mixing polyacrylamide into inorganic material Sn(IV) molybdophosphate. The physicochemical properties of this material were determined using X-ray diffraction, infrared spectroscopy, SEM, surface area (BET), and thermal analysis (TGA and DTA). Sorption uptake has been performed by batch experiments as a function of process parameters (such as temperature and pH). Experimental results have showed that the removal percentages increasing of metal ions with increasing pH. Thermodynamic parameters such as Δ G *, Δ S * and Δ H * have been calculated from the adsorption of Co(II) and Cr(III) onto polyacrylamide Sn(IV) molybdophosphate.