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- Title
Efficient simultaneous removal of U(VI) and Cu(II) from aqueous solution using core–shell nZVI@SA/CMC-Ca beads.
- Authors
Hu, Shuhong; Lin, Xiaoyan; Zhao, Wenhui; Luo, Xuegang
- Abstract
Core–shell nanoscale zero-valent iron@alginate/carboxymethyl cellulose sodium composite loaded with calcium (nZVI@SA/CMC-Ca) beads were synthesized in this study using coaxial electronic injection method. The adsorbent structure was characterized via FT-IR, SEM, EDX and XPS. The adsorption behavior of U(VI) and Cu(II) on core–shell nZVI@SA/CMC-Ca beads was studied under various experimental parameters like pH, contact time and temperature. The isotherm and the kinetic data, pertaining to the adsorption of U(VI) and Cu(II) by core–shell nZVI@SA/CMC-Ca beads obeyed both the Langmuir and Freundlich isotherms model and the pseudo-second-order kinetics model, respectively. The thermodynamic parameters revealed the spontaneous and endothermic nature of the adsorption. The experiment of regeneration and reusability suggested core–shell nZVI@SA/CMC-Ca bead was a regenerated material.
- Subjects
URANIUM removal (Groundwater purification); COPPER absorption &; adsorption; AQUEOUS solutions; ZERO-valent iron; ELECTRONIC structure; FREUNDLICH isotherm equation
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2018, Vol 315, Issue 2, p223
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-017-5662-7