Effects of temperature and dissolved oxygen on Se(IV) removal and Se(0) precipitation by Shewanella sp HN-41
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Ji-Hoon | - |
dc.contributor.author | Han, Jaehong | - |
dc.contributor.author | Choi, Heechul | - |
dc.contributor.author | Hur, Hor-Gil | - |
dc.date.available | 2019-05-30T05:42:25Z | - |
dc.date.issued | 2007-08 | - |
dc.identifier.issn | 0045-6535 | - |
dc.identifier.issn | 1879-1298 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/24021 | - |
dc.description.abstract | Facultative anaerobic Shewanella sp. strain HN-41 was able to utilize selenite (Se(IV)) as a sole electron acceptor for respiration in anaerobic condition, resulting in reduction of Se(IV) and then precipitation of elemental Se nano-sized spherical particles, which were identified using energy-dispersive X-ray spectroscopy and X-ray absorption near-edge structure spectroscopy. When the effects on Se(IV) reduction to elemental Se were studied by varying incubation temperatures and dissolved oxygen contents, Se(IV) reduction occurred more actively with higher removal rate of Se(IV) in aqueous phase and well-shaped spherical Se(0) nanoparticles were formed from the incubations under N-2 (100%) or N2:02 (80%:20%) at 30 degrees C with average diameter values of 181 40 mn and 164 24 nm, respectively, while relatively less amounts of irregular-shaped Se(0) nanoparticles were produced with negligible amount of Se(IV) reduction and removal under 100% of O-2. The Se particle size distributions based on scanning electron microscopy also showed a general tendency towards decreased Se particle size as oxygen content increased, whereas the particle size seemed uncorrelated to the change in the incubation temperature. These results also suggest that the size-controlled biological Se(0) nanospheres production may be achieved simply by changing the culture conditions. (C) 2007 Elsevier Ltd. All rights reserved. | - |
dc.format.extent | 8 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Effects of temperature and dissolved oxygen on Se(IV) removal and Se(0) precipitation by Shewanella sp HN-41 | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.chemosphere.2007.02.062 | - |
dc.identifier.bibliographicCitation | CHEMOSPHERE, v.68, no.10, pp 1898 - 1905 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000248248200013 | - |
dc.identifier.scopusid | 2-s2.0-34250324328 | - |
dc.citation.endPage | 1905 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 1898 | - |
dc.citation.title | CHEMOSPHERE | - |
dc.citation.volume | 68 | - |
dc.type.docType | Article | - |
dc.publisher.location | 영국 | - |
dc.subject.keywordAuthor | dissimilatory selenite reduction | - |
dc.subject.keywordAuthor | selenite removal | - |
dc.subject.keywordAuthor | selenium nanospheres | - |
dc.subject.keywordAuthor | growth condition | - |
dc.subject.keywordAuthor | Shewanella | - |
dc.subject.keywordPlus | ELEMENTAL SELENIUM | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordPlus | TRANSFORMATIONS | - |
dc.subject.keywordPlus | RESPIRATION | - |
dc.subject.keywordPlus | BACTERIA | - |
dc.subject.keywordPlus | SELENATE | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
84, Heukseok-ro, Dongjak-gu, Seoul, Republic of Korea (06974)02-820-6194
COPYRIGHT 2019 Chung-Ang University All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.