Author(s):
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, Faculty of Technology and Metallurgy, , Serbia
6. Milena Radomirović, University of Belgrade, Faculty of Technology and Metallurgy, , Serbia
7. Antonije Onjia, University of Belgrade, Faculty of Technology and Metallurgy, , Serbia

Abstract:
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:
SYMPOSIUM B - Biomaterials and nanomedicine

Date of abstract submission:
01.07.2018.

Conference:
Contemporary Materials 2018 - Savremeni Materijali

Abstract