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Synthesis and Characterization of the Inorganic Ion Exchanger Based on Titanium 2-carboxyethylphosphonate

Published online by Cambridge University Press:  31 January 2011

Anatoly I. Bortun
Affiliation:
Department of Chemistry, Texas A&M University, College Station, Texas 77843
Lyudmila Bortun
Affiliation:
Department of Chemistry, Texas A&M University, College Station, Texas 77843
Abraham Clearfield
Affiliation:
Department of Chemistry, Texas A&M University, College Station, Texas 77843
Enrique Jaimez
Affiliation:
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain
María A. Villa-García
Affiliation:
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain
José R. García
Affiliation:
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain
Julio Rodríguez
Affiliation:
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain
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Abstract

An inorganic ion exchanger based on titanium 2-carboxyethylphosphonate (TiPC) has been synthesized by reaction between solutions of TiCl3 and 2-carboxyethylphosphonic acid at elevated temperature. The solid was characterized by chemical analysis, 31P MAS NMR, x-ray powder diffraction, IR spectroscopy, and TG analysis. It was found that TiPC is a highly crystalline layered solid with the interlayer distance 13.1 Å, and exhibits a high thermal stability. The intercalation of n-alkylamines and the ion exchange properties of TiPC toward alkali, alkaline earth, and some transition metal cations have been studied. The exchanger shows high affinity to alkaline earth metal cations and some di- and trivalent cations.

Type
Articles
Copyright
Copyright © Materials Research Society 1997

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