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Ion exchangers in radioactive waste management

IV. Radiotracer studies on adsorption of strontium ions over sodium titanate

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Abstract

Adsorption of strontium ions from aqueous solution of Sr(NO3)2 on synthetic sodium titanate [(NaO)x(TiO)y(OH)z] powder has beet investigated as a function of contact time, Sr(II) concentration and temperature. X-ray diffraction studies indicated poor crystallinity of the synthetic sodium titanate, which became more crystalline after annealing at ca. 1173 K for 6 h in air. The adsorption of strontium ions on sodium titanate was favored at higher concentrations of the adsorbate and at lower temperatures. The kinetics of the process follows a first-order rate law with respect to adsorptive concentration and obeys the Freundlich isotherm in the entire range of adsorptive concentration. The process of adsorption in the present system has been found to be of the ion-exchange type.

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Authors and Affiliations

  1. Nuclear and Radiochemistry Laboratory, Department of Chemistry, Banaras Hindu University, 221005, Varanasi, (India)

    S. P. Mishra & N. Srinivasu

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  1. S. P. Mishra
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  2. N. Srinivasu
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Mishra, S.P., Srinivasu, N. Ion exchangers in radioactive waste management. Journal of Radioanalytical and Nuclear Chemistry, Articles 162, 299–305 (1992). https://doi.org/10.1007/BF02035391

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  • DOI: https://doi.org/10.1007/BF02035391

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