Published November 2023
| Version v1
Journal article
Adsorption of uranium ions from aqueous solutions by graphene-based zinc oxide nanocomposites
Creators
- 1. Ege University, Bornova, Izmir (Turkey). Department of Materials Science and Engineering
- 2. Ege University, Bornova, Izmir (Turkey). Institute of Nuclear Science
Description
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. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 332
- Journal Issue
- 11
- Journal Page Range
- p. 4705-4719
- ISSN
- 0236-5731
- CODEN
- JRNCDM
Conference
- Title
- International Nuclear Sciences and Technologies Conference
- Acronym
- INSTEC-2022
- Dates
- 19-22 Oct 2022
- Place
- Kusadasi, Aydin (Turkey)
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 54121847
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ADSORPTION; AQUEOUS SOLUTIONS; GRAPHENE; KINETICS; NANOCOMPOSITES; OXIDES; THERMODYNAMICS; URANIUM IONS; ZINC OXIDES
- Descriptors DEC
- CARBON; CHALCOGENIDES; CHARGED PARTICLES; DISPERSIONS; ELEMENTS; HOMOGENEOUS MIXTURES; IONS; MATERIALS; MIXTURES; NANOMATERIALS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; SOLUTIONS; SORPTION; ZINC COMPOUNDS
Optional Information
- Notes
- 61 refs.