dc.contributor.author | Akkaya, Recep | |
dc.date.accessioned | 2019-07-27T12:10:23Z | |
dc.date.accessioned | 2019-07-28T10:03:45Z | |
dc.date.available | 2019-07-27T12:10:23Z | |
dc.date.available | 2019-07-28T10:03:45Z | |
dc.date.issued | 2012 | |
dc.identifier.issn | 0236-5731 | |
dc.identifier.uri | https://dx.doi.org/10.1007/s10967-011-1513-0 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12418/9140 | |
dc.description | WOS: 000305230100038 | en_US |
dc.description.abstract | In this research, a new composite, poly (hydroxyethylmethacrylate-hydroxyapatite) [P(HEMA-Hap)], was synthesized and its adsorptive features for natural radionuclides (TI+, Ra2+, Bi3+ and Ac3+ in a leaching solution) were investigated at differing initial pH, concentration and temperature ranges. The natural radionuclides were counted by gamma spectrometer using a type NAI (Tl) detector. The adsorption data obtained were well represented by Langmuir and Freundlich type isotherms. The magnitude of determined monolayer adsorption capacities (X-L) for the adsorbed radionuclides were TI+ = Ac3+ > Ra2+ = Bi3+. These results demonstrated that P(HEMA-Hap) had high affinity to the natural radionuclide. The thermodynamic parameters indicated that the adsorption mechanisms were spontaneous (Delta G < 0) in terms of adsorption free enthalpy, and changes in the enthalpy and entropy values showed that the overall adsorption process was endothermic (Delta H > 0), thus increasing entropy (Delta S > 0). | en_US |
dc.language.iso | eng | en_US |
dc.publisher | SPRINGER | en_US |
dc.relation.isversionof | 10.1007/s10967-011-1513-0 | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Radionuclides | en_US |
dc.subject | Adsorption | en_US |
dc.subject | Composite | en_US |
dc.subject | Hydroxyapatite | en_US |
dc.subject | Thermodynamic | en_US |
dc.title | Thermodynamic parameters of TI+, Ra2+, Bi3+ and Ac3+ adsorption onto polyhydroxyethylmethacrylate-hydroxyapatite composite | en_US |
dc.type | article | en_US |
dc.relation.journal | JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | en_US |
dc.contributor.department | Cumhuriyet Univ, Dept Chem, TR-58140 Sivas, Turkey | en_US |
dc.contributor.authorID | AKKAYA, Recep -- 0000-0002-3477-7198 | en_US |
dc.identifier.volume | 292 | en_US |
dc.identifier.issue | 2 | en_US |
dc.identifier.endpage | 775 | en_US |
dc.identifier.startpage | 771 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |