We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Adsorption of uranium ions from aqueous solutions by graphene-based zinc oxide nanocomposites.
- Authors
Kaptanoglu, Ikbal Gozde; Yusan, Sabriye
- Abstract
In this paper, adsorption potentials of U(VI) ions were investigated using graphene-based zinc oxide nanocomposites which are graphene oxide–zinc oxide (GO–ZnO) and reduced graphene oxide–zinc oxide (rGO–ZnO). Kinetic data showed that processes could be simulated with pseudo-second-order with high correlation coefficient (R2 > 0.99). Experimental results of equilibrium adsorption results show that Langmuir fits the data better. The maximum sorption capacities of GO–ZnO at pH 5.0 was 476.19 mg/g, and rGO–ZnO at pH 5.5 was 256.41 mg/g at 298 K. Thermodynamic parameters indicate that the adsorption of U(VI) on GO–ZnO and rGO–ZnO are spontaneous and endothermic.
- Subjects
ADSORPTION (Chemistry); AQUEOUS solutions; NANOCOMPOSITE materials; GRAPHENE oxide; URANIUM; IONS
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2023, Vol 332, Issue 11, p4705
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-023-08876-7