DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yang, Jae Hwan | ko |
dc.contributor.author | Cho, Yong-Jun | ko |
dc.contributor.author | Shin, Jin Myeong | ko |
dc.contributor.author | Yim, Man-Sung | ko |
dc.date.accessioned | 2016-06-29T02:07:43Z | - |
dc.date.available | 2016-06-29T02:07:43Z | - |
dc.date.created | 2015-12-22 | - |
dc.date.created | 2015-12-22 | - |
dc.date.created | 2015-12-22 | - |
dc.date.issued | 2015-10 | - |
dc.identifier.citation | JOURNAL OF NUCLEAR MATERIALS, v.465, pp.556 - 564 | - |
dc.identifier.issn | 0022-3115 | - |
dc.identifier.uri | http://hdl.handle.net/10203/208507 | - |
dc.description.abstract | Efficient capture and stable storage of the long-lived iodine-129 (I-129), released as off-gas from nuclear fuel reprocessing, have been of significant concern in the waste management field. In this study, bismuth-embedded SBA-15 mesoporous silica was firstly applied for iodine capture and storage. SBA-15 was functionalized with thiol (-SH) groups, followed by bismuth adsorption with Bi-S bonding, which was thermally treated to form Bi2S3 within SBA-15. The bismuth-embedded SBA-15s demonstrated high iodine loading capacities (up to 540 mg-l/g-sorbent), which benefitted from high surface area and porosity of SBA-15 as well as the formation of thermodynamically stable BiI3 compound. Iodine physisorption was effectively suppressed due to the large pores present in SBA-15, resulting in chemisorption as a main mechanism for iodine confinement. Furthermore, a chemically durable iodine-bearing material was made with a facile post-sorption process, during which the iodine-incorporated phase was changed from BiI3 to chemically durable Bi5O7I. Thus, our results showed that both efficient capture and stabilization of 1291 would be possible with the bismuth-embedded SBA-15, in contrast to other sorbents mainly focused on iodine capture. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Bismuth-embedded SBA-15 mesoporous silica for radioactive iodine capture and stable storage | - |
dc.type | Article | - |
dc.identifier.wosid | 000364890300068 | - |
dc.identifier.scopusid | 2-s2.0-84947920338 | - |
dc.type.rims | ART | - |
dc.citation.volume | 465 | - |
dc.citation.beginningpage | 556 | - |
dc.citation.endingpage | 564 | - |
dc.citation.publicationname | JOURNAL OF NUCLEAR MATERIALS | - |
dc.identifier.doi | 10.1016/j.jnucmat.2015.06.043 | - |
dc.contributor.localauthor | Yim, Man-Sung | - |
dc.contributor.nonIdAuthor | Cho, Yong-Jun | - |
dc.contributor.nonIdAuthor | Shin, Jin Myeong | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | lodine-129 | - |
dc.subject.keywordAuthor | Bismuth-embedded SBA-15 | - |
dc.subject.keywordAuthor | Chemisorption | - |
dc.subject.keywordAuthor | Post-sorption process | - |
dc.subject.keywordAuthor | Efficient capture and stabilization | - |
dc.subject.keywordPlus | CHALCOGEN-BASED AEROGELS | - |
dc.subject.keywordPlus | SELECTIVE ADSORPTION | - |
dc.subject.keywordPlus | WASTE FORMS | - |
dc.subject.keywordPlus | ACID GROUPS | - |
dc.subject.keywordPlus | CONFINEMENT | - |
dc.subject.keywordPlus | REMEDIATION | - |
dc.subject.keywordPlus | SORBENTS | - |
dc.subject.keywordPlus | GLASSES | - |
dc.subject.keywordPlus | STREAMS | - |
dc.subject.keywordPlus | AREA | - |
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