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نویسندگان مقالات پربازدید :
مجله مهندسی شیمی
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • synthesis and characterization of novel cation exchange adsorbent for the treatment of real samples for metal ions

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    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 557
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     poly-o-toluidine based novel organic–inorganic hybrid ion exchange adsorbent has been synthesized via sol–gel process and characterized by ftir, xrd, sem, tem and tga studies. the physico-chemical properties such as ion exchange capacity, ph titration curves, chemical stability along with effect of eluent concentration and elution behavior were also carried out to exploit the ion-exchange capabilities. sem analysis exposed that after binding inorganic precipitate with poly-o-toluidine the morphology of the composite material has been changed which is semicrystalline. the ph titration studies prove that material shows bifunctional strong cation exchange behavior. on the basis of chemical stability it can be successfully used in a number of solvent systems up to the concentration of 2 mol l−1. partition coefficients studies (kd values) of divers metal ions were performed in some pure and mixed solvent systems by using this material. on the basis differential behavior of the material towards different metal ions it has been concluded to be selective for ca(ii), sr(ii), zn(ii), cd(ii) and zr(iv) ions. to exploit the usefulness of the material as an adsorbent, some important quantitative binary separations of important metal ions were performed on poly-o-toluidinezr(iv)iodate columns. on the basis of good uptake capacity this composite ion exchange adsorbent has been successfully used for removal and recovery zr(iv) and cd(ii) ions from real samples and synthetic mixture.

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