Abstract
Incorporation of iron oxide into silico-antimonate of different Si/Sb molar ratios introduced a class of dual salts ion exchangers with advanced ion exchange properties. Physicochemical and equilibrium studies have been carried out to understand the ion exchange properties of these materials. Apparent investigation indicated that iron incorporation into silico-antimonate yields materials having excellent mechanical properties. On the basis of distribution studies, the materials were found to be highly selective for Sr2+ or Ce3+ depending on their Si/Sb molar ratios. Diffractogram, thermogram, IR spectra and sorption performance of crystalline FeSiSb (114) indicated that no detectable structural changes after an exposure up to 100 kGy of γ-rays. Effect of reaction temperature on the exchange process was investigated and the respective thermodynamic parameters were calculated.
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Acknowledgment
The authors are greatly indebted to Dr. A. F. Seliman, Environmental Chem. Department for his positive input during paper revision.
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Ali, I.M., Zakaria, E.S., Shama, S.A. et al. Synthesis, properties and effect of ionizing radiation on sorption behavior of iron silico-antimonate. J Radioanal Nucl Chem 285, 239–245 (2010). https://doi.org/10.1007/s10967-010-0547-z
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DOI: https://doi.org/10.1007/s10967-010-0547-z