KOPRI Repository

Production of Molecular Iodine and Tri-iodide in the Frozen Solution of Iodide: Implication for Polar Atmosphere

Cited 48 time in wos
Cited 47 time in scopus

Full metadata record

DC Field Value Language
dc.contributor.authorKim, Kitae-
dc.contributor.authorChoi, Wonyong-
dc.contributor.authorYoon, Ho Il-
dc.contributor.authorMin, Dae Wi-
dc.contributor.authorChristopher S. Blaszczak-Boxe-
dc.contributor.authorCarlos A. Cuevas-
dc.contributor.authorAlfonso Saiz-Lopez-
dc.contributor.authorMasanori Okumura-
dc.contributor.authorAkihiro Yabushita-
dc.date.accessioned2018-03-29T06:10:14Z-
dc.date.available2018-03-29T06:10:14Z-
dc.date.issued2016-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/7431-
dc.description.abstractThe chemistry of reactive halogens in the polar atmosphere plays important roles in ozone and mercury depletion events, oxidizing capacity, and dimethylsulfide oxidation to form cloud condensation nuclei. Among halogen species, the sources and emission mechanisms of inorganic iodine compounds in the polar boundary layer remain unknown. Here, we demonstrate that the production of triiodide (I3-) via iodide oxidation, which is negligible in aqueous solution, is significantly accelerated in frozen solution ? both in the presence and absence of solar irradiation. Field experiments carried out in the Antarctic region (King George Island, 62°13′S 58°47′W) also showed that the generation of triiodide via solar photooxidation was enhanced when iodide was added to various ice media. The emission of gaseous I2 from the irradiated frozen solution of iodide to the gas phase was detected by using cavity ring down spectroscopy, which was observed both in the frozen state at 253 K and after thawing the ice at 298 K. The accelerated (photo)oxidation of iodide and the subsequent formation of triiodide and I2 in ice appear to be related with the freeze concentration of iodide and dissolved O2 trapped in the ice crystal grain boundaries. We propose that an accelerated abiotic transformation of iodide to gaseous I2 in ice media provides a previously unrecognized formation pathway of active iodine species in the polar atmosphere.-
dc.languageEnglish-
dc.titleProduction of Molecular Iodine and Tri-iodide in the Frozen Solution of Iodide: Implication for Polar Atmosphere-
dc.title.alternative남극 대기중 요오드 대량 생성 메카니즘 규명-
dc.typeArticle-
dc.identifier.bibliographicCitationKim, Kitae, et al. 2016. "Production of Molecular Iodine and Tri-iodide in the Frozen Solution of Iodide: Implication for Polar Atmosphere". <em>ENVIRONMENTAL SCIENCE & TECHNOLOGY</em>, 50(3): 1280-1287.-
dc.citation.titleENVIRONMENTAL SCIENCE & TECHNOLOGY-
dc.citation.volume50-
dc.citation.number3-
dc.identifier.doi10.1021/acs.est.5b05148-
dc.citation.startPage1280-
dc.citation.endPage1287-
dc.description.articleClassificationSCI-
dc.description.jcrRateJCR 2014:4.484-
dc.identifier.localId2016-0012-
dc.identifier.scopusid2-s2.0-84957588868-
dc.identifier.wosid000369471300024-
Appears in Collections  
2014-2016, Monitoring of Abrupt Environmental Change in The Ice Shelf System and Reconstruction of Quaternary Deglaciation History in West Antarctica (14-16) / Yoon; Ho Il (PP15010; PP16010; PP14010)
Files in This Item

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse