DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kang, MJ | ko |
dc.contributor.author | Chun, KS | ko |
dc.contributor.author | Rhee, SW | ko |
dc.contributor.author | Do, Youngkyu | ko |
dc.date.accessioned | 2013-02-27T17:57:39Z | - |
dc.date.available | 2013-02-27T17:57:39Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1999 | - |
dc.identifier.citation | RADIOCHIMICA ACTA, v.85, no.1-2, pp.57 - 63 | - |
dc.identifier.issn | 0033-8230 | - |
dc.identifier.uri | http://hdl.handle.net/10203/69964 | - |
dc.description.abstract | The sorption behavior of I- on calcined Mg/Al layered double hydroxide (LDH) was investigated. The batch sorption experiments were carried out in an inert atmosphere and at a constant temperature of 25 degrees C. Sorption is based on stepwise ion-exchange equilibria involving the LDH hydroxide. The determined equilibrium constants of K-1 and K-2 are 7.4+/-1.0 and 0.2+/-0.4, respectively. The dominant reaction is the first ion-exchange equilibrium, which is the replacement of one OH- ion of the LDH hydroxide by an I- ion to form Mg6Al2(OH)(17)(I)(s). The K-1 value for I- sorption is 5 times higher than that for MO4- (M = Tc, Re) sorption. An iodide ion is more selective for sorption on the calcined LDH. The sorption behavior of I- in the presence of TcO4- was investigated. The batch sorption experiments were conducted by using I- and ReO4- as a TcO4- surrogate. The sorbed concentrations of I- and ReO4- in simultaneous sorption are similar to those in single ion sorption. The I- and ReO4- show an independent sorption behavior on calcined LDH when these anions are mixed. It means that Mg6Al2(OH)(17)(ReO4) exists with Mg6Al2(OH)(17)(I) in the LDH unit. | - |
dc.language | English | - |
dc.publisher | R OLDENBOURG VERLAG | - |
dc.subject | ANION-EXCHANGE | - |
dc.subject | TECHNETIUM | - |
dc.subject | MINERALS | - |
dc.subject | HYDROTALCITE | - |
dc.subject | IODINE | - |
dc.subject | ION | - |
dc.title | Comparison of sorption behavior of I- and TcO4- on Mg/Al layered double hydroxide | - |
dc.type | Article | - |
dc.identifier.wosid | 000082211100008 | - |
dc.identifier.scopusid | 2-s2.0-0003080205 | - |
dc.type.rims | ART | - |
dc.citation.volume | 85 | - |
dc.citation.issue | 1-2 | - |
dc.citation.beginningpage | 57 | - |
dc.citation.endingpage | 63 | - |
dc.citation.publicationname | RADIOCHIMICA ACTA | - |
dc.contributor.localauthor | Do, Youngkyu | - |
dc.contributor.nonIdAuthor | Kang, MJ | - |
dc.contributor.nonIdAuthor | Chun, KS | - |
dc.contributor.nonIdAuthor | Rhee, SW | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | layered double hydroxide | - |
dc.subject.keywordAuthor | I- | - |
dc.subject.keywordAuthor | TcO4- | - |
dc.subject.keywordAuthor | ion-exchange | - |
dc.subject.keywordAuthor | simultaneous sorption | - |
dc.subject.keywordPlus | ANION-EXCHANGE | - |
dc.subject.keywordPlus | TECHNETIUM | - |
dc.subject.keywordPlus | MINERALS | - |
dc.subject.keywordPlus | HYDROTALCITE | - |
dc.subject.keywordPlus | IODINE | - |
dc.subject.keywordPlus | ION | - |
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