Synthesis and Characterization of a Novel Metal Phosphonate, Zirconium (IV)-Hydroxy Ethylidene Diphosphonate, and Its Application as an Ion Exchanger

Authors : Amit JAYSWAL, Uma CHUDASAMA

Pages : 63-74

View : 17 | Download : 7

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A novel hybrid ion exchange material, Zirconium-hydroxy ethylidene diphosphonate [ZrHEDP], of the class of tetravalent metal acid insert ignore into journalissuearticles values(TMA); salts has been synthesized by the sol-gel technique. The material was characterized with elemental analysis insert ignore into journalissuearticles values(ICP-AES);, thermal analysis insert ignore into journalissuearticles values(TGA, DSC);, and FT-IR and X-ray diffraction studies. The chemical resistivity of the material in various media was evaluated. ZrHEDP was further investigated for its possible use as an ion exchanger. The Na+ ion-exchange capacity insert ignore into journalissuearticles values(IEC); of the material was determined, and kinetics and thermodynamics of exchange for the metal ions Cuinsert ignore into journalissuearticles values(II);, Niinsert ignore into journalissuearticles values(II);, Zninsert ignore into journalissuearticles values(II);, and Mninsert ignore into journalissuearticles values(II); towards ZrHEDP were studied. The sorption of the metal ions follow the order Zninsert ignore into journalissuearticles values(II); > Cuinsert ignore into journalissuearticles values(II); > Mninsert ignore into journalissuearticles values(II); \approx Niinsert ignore into journalissuearticles values(II);.
Keywords : Inorganic ion exchanger, metal phosphonate, tetravalent metal acid salt, zirconium hydroxy ethylidene diphosphonate, Zr IV, phosphonate