Evaluation of sorption test of iodide on carbon nanotubes to support anionic radionuclide immobilisation method
by Tae-Jin Park
International Journal of Nanotechnology (IJNT), Vol. 19, No. 1, 2022

Abstract: Anionic radionuclides show one of the highest risks to the long-term safety assessment of disposal repository. They are highly mobile because of their high solubility and low adsorption tendency towards the solid media under the aqueous environment. Thus, techniques relevant to immobilisation of anionic radionuclides are of crucial importance. Here, we conduct sorption test of iodide onto carbon nanotubes, which are the key components needed for immobilisation strategy suggested. Iodide showed no sorption onto multi-walled carbon nanotubes (MWNT) regardless of functionalisation, whereas single-walled carbon nanotubes showed better sorption depends on functionalisation. We expect the results obtained will support our immobilisation method for anionic radionuclides and complement iodide sorption onto the composite of carbon nanotube and transition metals in the immobilisation strategy.

Online publication date: Thu, 21-Apr-2022

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