confOrganiser.com - Work: GADOLINIUM SORPTION ON MULTI-WALLED CARBON NANOTUBES

GADOLINIUM SORPTION ON MULTI-WALLED CARBON NANOTUBES

1. Danijela Maksin, University of Belgrade, Vinča Institute of Nuclear Sciences, Serbia, Serbia
2. Marija Vukčević, University of Belgrade, Faculty of Technology and Metallurgy, Serbia
3. Tatjana Đurkić, University of Belgrade, Faculty of Technology and Metallurgy, Serbia
4. Ivana Stanišić, University of Belgrade, Faculty of Technology and Metallurgy, Serbia
5. Tamara Bakić, University of Belgrade, Innovation Center, Faculty of Technology and Metallurgy, Serbia
6. Milena Radomirović, University of Belgrade, Innovation Center, Faculty of Technology and Metallurgy, Serbia
7. Antonije Onjia, University of Belgrade, Faculty of Technology and Metallurgy,, Serbia

Rare earth metals are deemed to be the materials of future due to their numerous applications including medical diagnostics, nuclear facilities, petroleum industry, etc. Multi-walled carbon nanotubes, which possess unique physicochemical properties, were evaluated as sorbents for lanthanoid gadolinium from aqueous solutions in this paper. The pH-dependent sorption behavior of Gd was studied in the pH range from 3 to 11 at room temperature (298 K). Equilibrium data over a range of initial Gd concentrations of 5−50 mg L−1 was analyzed with Langmuir, Freundlich and Redlich-Peterson models. Sorption kinetics was fitted with the pseudo-first-order, the pseudo-second-order and fractional power kinetic models.

Key words: Gadolinium; Multi-walled carbon nanotubes; Sorption

Thematic field: SIMPOZIJUM B - Biomaterijali i nanomedicina

Date: 01.07.2018.

Contemporary Materials 2018 - Savremeni Materijali

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