Bulletin of Materials Science

, Volume 30, Issue 1, pp 43–49

Synthesis, characterization and ion exchange properties of zirconium(IV) tungstoiodophosphate, a new cation exchanger

Article

DOI: 10.1007/s12034-007-0008-7

Cite this article as:
Siddiqui, W.A. & Khan, S.A. Bull Mater Sci (2007) 30: 43. doi:10.1007/s12034-007-0008-7

Abstract

Zirconium(IV) tungstoiodophosphate has been synthesized under a variety of conditions. The most chemically and thermally stable sample is prepared by adding a mixture of aqueous solutions of 0·5 mol L−1 sodium tungstate, potassium iodate and 1 mol L−1 orthophosphoric acid to aqueous solution of 0·1 mol L−1 zirconium(IV) oxychloride. Its ion exchange capacity for Na+ and K+ was found to be 2·20 and 2·35 meq g−1 dry exchanger, respectively. The material has been characterized on the basis of chemical composition, pH titration, Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis. The effect on the exchange capacity of drying the exchanger at different temperatures has been studied. The analytical importance of the material has been established by quantitative separation of Pb2+ from other metal ions.

Keywords

Synthesischaracterizationzirconium(IV) tungstoiodophosphate

Copyright information

© Indian Academy of Sciences 2007

Authors and Affiliations

  1. 1.Department of Applied Sciences & Humanities, Faculty of Engineering and TechnologyJamia Millia IslamiaNew DelhiIndia