Selective Removal of Cs+, Sr2+, and Ni2+ by K2xMgxSn3-xS6 (x=0.5-1) (KMS-2) Relevant to Nuclear Waste Remediation
| dc.contributor.author | Mertz, J. L. | en |
| dc.contributor.author | Fard, Z. H. | en |
| dc.contributor.author | Malliakas, C. D. | en |
| dc.contributor.author | Manos, M. J. | en |
| dc.contributor.author | Kanatzidis, M. G. | en |
| dc.date.accessioned | 2015-11-24T16:46:49Z | |
| dc.date.available | 2015-11-24T16:46:49Z | |
| dc.identifier.issn | 0897-4756 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/9108 | |
| dc.rights | Default Licence | - |
| dc.subject | absorption | en |
| dc.subject | ion-exchange | en |
| dc.subject | cesium | en |
| dc.subject | strontium | en |
| dc.subject | chalcogenide | en |
| dc.subject | nuclear waste | en |
| dc.subject | radioactive waste | en |
| dc.subject | waste management | en |
| dc.subject | layered metal sulfides | en |
| dc.subject | acidic radioactive-waste | en |
| dc.subject | extraction unex process | en |
| dc.subject | cesium | en |
| dc.subject | strontium | en |
| dc.subject | solvent | en |
| dc.subject | water | en |
| dc.subject | chalcogenides | en |
| dc.subject | separation | en |
| dc.subject | actinides | en |
| dc.title | Selective Removal of Cs+, Sr2+, and Ni2+ by K2xMgxSn3-xS6 (x=0.5-1) (KMS-2) Relevant to Nuclear Waste Remediation | en |
| heal.abstract | Cs-137 and Sr-90, both byproducts of the uranium and plutonium fission processes, make up the majority of high-level waste from nuclear power plants. Ni-63 is a byproduct of the erosion-corrosion process of the reactor components in nuclear energy plants. The concentrations of these ions in solution determine the Waste Class (A, B, or C); thus, their selective removal in the presence of large excesses of nonradioactive ions is necessary to reduce waste volume and cut disposal costs. We report the new material K2xMgxSn3-xS6 (x = 0.5-1, KMS-2) and its application for the ion exchange of Cs+, Sr2+, and Ni2+ in varying conditions. This compound crystallizes in the hexagonal space group P6(3)/mmc with cell parameters a = b = 3.6749(8) angstrom and c = 16.827(4) angstrom. The difference in crystal structure between KMS-2, the previously reported Mn analog K2xMnxSn3-xS6 (KMS-1), and their parent SnS2 is also described. Distribution coefficients for KMS-2 are high for Cs+ (7.1 x 10(3) mL/g) and Sr2+ (2.1 x 10(4) mL/g) at neutral pH (similar to 6 ppm, V/m similar to 1000 mL/g). We also report on the comparative study of Ni2+ ion exchange with both KMS-1 and KMS-2. Additional competitive reactions using Cs+, Sr2+, and Ni2+ in high concentrations of salt solution and at different pH values are reported. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | Doi 10.1021/Cm400699r | - |
| heal.identifier.secondary | <Go to ISI>://000319856000015 | - |
| heal.identifier.secondary | http://pubs.acs.org/doi/pdfplus/10.1021/cm400699r | - |
| heal.journalName | Chemistry of Materials | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2013 | - |
| heal.publisher | American Chemical Society | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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