Comparative study of titanium(IV)-based exchangers in aqueous and mixed solvent systems
1Department of Chemistry, Aligarth Muslim University, Aligarh, U.P. India.
Talanta
|July 1, 1973
Summary
Titanium antimonate, arsenate, tungstate, molybdate, and selenite were synthesized and studied for ion-exchange properties. Titanium antimonate demonstrated superior stability, enabling effective analytical separations of various metal ions.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Analytical Chemistry
Background:
- Development of novel ion-exchange materials is crucial for advanced chemical separations.
- Titanium-based compounds offer potential due to their stability and versatile chemistry.
Purpose of the Study:
- Synthesize and characterize titanium antimonate, arsenate, tungstate, molybdate, and selenite.
- Evaluate their ion-exchange capacities and chemical/thermal stability.
- Assess their utility in analytical separations of metal ions.
Main Methods:
- Synthesis of titanium-based metal salts.
- Chemical and thermal stability analysis.
- Ion-exchange capacity studies as a function of pH and temperature.
- Distribution coefficient measurements for 26 metal ions.
- Column chromatographic separations using synthesized materials.
Main Results:
- Successfully synthesized titanium antimonate, arsenate, tungstate, molybdate, and selenite.
- Titanium antimonate exhibited the highest chemical and thermal stability.
- Distribution coefficients were determined for 26 metal ions across various solvent systems.
- Quantitative separations of Hg(II)/Cd(II), Pb(II)/Cu(II), Pb(II)/Zn(II), and La(III)/Ba(II) were achieved.
Conclusions:
- The synthesized titanium compounds function as effective ion-exchangers.
- Titanium antimonate is a highly stable material suitable for demanding applications.
- These materials show promise for selective analytical separations of metal ions.
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