dc.contributor.author | Akkaya, Recep | |
dc.date.accessioned | 2019-07-27T12:10:23Z | |
dc.date.accessioned | 2019-07-28T09:59:18Z | |
dc.date.available | 2019-07-27T12:10:23Z | |
dc.date.available | 2019-07-28T09:59:18Z | |
dc.date.issued | 2013 | |
dc.identifier.issn | 0011-9164 | |
dc.identifier.issn | 1873-4464 | |
dc.identifier.uri | https://dx.doi.org/10.1016/j.desa1.2012.09.020 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12418/8633 | |
dc.description | WOS: 000321537300002 | en_US |
dc.description.abstract | In this research, a novel composite, poly(aaylamide-expanded perlite) [P(AAm-EP)], was synthesized and its adsorptive features were investigated for UO22+ and Th4+ ions. The composite's adsorptive features were evaluated for UO22+ and Th4+ ions in light of the dependency of the ion concentration, pH, temperature, time, and reusability. The composite could bind UO22+ and Th4+ ions with strong chemical affinity. The correlation coefficients indicate that the Langmuir model fits better for the UO22+ and Th4+ onto P(AAm-EP) composite with adsorption capacities as 0.66 and 0.74 mol kg, respectively. Adsorption equilibrium of UO22+ and Th4+ ions was achieved in about 34 and 32 min, respectively. The kinetic data conformed better to the pseudo-second order equation. The adsorption of UO22+ and Th4+ ions increased with increasing pH and reached a plateau value at around pH 3.0. Thermodynamic parameters,o,H and AS values showed that the sorption process was spontaneous (Delta G<O), endothermic (Delta H>0), and had increased entropy (Delta S> 0). It was also found that the adsorption kinetics followed the pseudo-second-order model and that the rate-controlling step was chemical adsorption. The reusability of the composites was confirmed for 5 sequential reuses. (C) 2012 Elsevier B.V. All rights reserved. | en_US |
dc.description.sponsorship | Research Fund of Cumhuriyet University (COBAP) [F-327] | en_US |
dc.description.sponsorship | This work was supported by The Research Fund of Cumhuriyet University (COBAP, Project no: F-327) to which the author is grateful. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | ELSEVIER SCIENCE BV | en_US |
dc.relation.isversionof | 10.1016/j.desa1.2012.09.020 | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Adsorption | en_US |
dc.subject | Composite | en_US |
dc.subject | Expanded perlite | en_US |
dc.subject | Synthesis | en_US |
dc.subject | Thorium | en_US |
dc.subject | Uranium | en_US |
dc.title | Removal of radioactive elements from aqueous solutions by adsorption onto polyacrylamide-expanded perlite: Equilibrium, kinetic, and thermodynamic study | en_US |
dc.type | article | en_US |
dc.relation.journal | DESALINATION | en_US |
dc.contributor.department | Cumhuriyet Univ, Vocat Sch Hlth Serv, TR-58140 Sivas, Turkey | en_US |
dc.contributor.authorID | AKKAYA, Recep -- 0000-0002-3477-7198 | en_US |
dc.identifier.volume | 321 | en_US |
dc.identifier.endpage | 8 | en_US |
dc.identifier.startpage | 3 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |