Journal of Nuclear Science, Engineering and Technology (JONSAT)
In cooperation with the Iranian Nuclear Society

The Effect of Embedded Schiff Base Ligands on the Silica Nanoparticles to Improve the Removal of Thorium Ions from Aqueous Solution

Document Type : Research Paper

Authors

Z Shiri-Yekta
A Nilchi
Abstract
: One of the most important safety problems and challenges of the countries having the nuclear technology is to find the methods for the treatment of the radioactive materials in the nuclear wastes. Thorium ion is one of the elements required to manage in the nuclear wastes. In this study, the modified nano-silica adsorbents with Schiff base ligands salicylaldimine propyl triethoxysilane (L1) and pyridylmethyl idenepropyl triethoxysilane (L2) were used for improvement of the thorium ions adsorption. Besides the influence of the used ligand structure, the effects of different variables such as the pH, contact time and adsorbent were investigated, and the optimum conditions were determined. The results showed that the modified adsorbent with ligand L1 provides better performance in this regard.
 

Keywords

Nanosilica
Adsorption
Schiff base ligand
Thorium
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