Surface decontamination of protective duplex oxide layers on stainless steel waste using deep eutectic solvents

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dc.contributor.authorKim, Nayoungko
dc.contributor.authorYang, Wonseokko
dc.contributor.authorAmphlett, Jamesko
dc.contributor.authorKang, Dokyuko
dc.contributor.authorLee, Yunuko
dc.contributor.authorKim, Jae Joonko
dc.contributor.authorRyu, Ho Jinko
dc.contributor.authorChoi, Sungyeolko
dc.date.accessioned2022-01-10T06:40:32Z-
dc.date.available2022-01-10T06:40:32Z-
dc.date.created2022-01-10-
dc.date.created2022-01-10-
dc.date.created2022-01-10-
dc.date.created2022-01-10-
dc.date.issued2022-03-
dc.identifier.citationJOURNAL OF HAZARDOUS MATERIALS, v.425-
dc.identifier.issn0304-3894-
dc.identifier.urihttp://hdl.handle.net/10203/291699-
dc.description.abstractThe decontamination capabilities of deep eutectic solvents (DESs) formed from choline chloride (ChCl) and ptoluenesulfonic acid monohydrate (PtsA), ChCl:PtsA, under different conditions (hydrated, heated, and agitated) were tested with simulant oxidized stainless steel 304 specimens. Although the leaching rates were satisfactory under all conditions, hydrated and stirred ChCl:PtsA at 60 degrees C showed the fastest leaching rate of 0.1647 mg/min. Oxidized specimens with an average mass gain of 1.2 +/- 1 mg were leached, and their masses were reduced by 558 +/- 22 mg after 26 h. These results were understood by improved physical properties of ChCl:PtsA upon hydration. Metal oxide solubility of CoO and NiO increased with water, and those of Cr2O3 and Fe3O4 decreased with hydration. Importantly, the use of choline chloride-based DESs in decontamination applications may significantly reduce the cost of decontamination because these DESs can be mass-produced and their components are both easily obtainable and economical. Also, DESs are biodegradable and eco-friendly. The different speciation of Co and Ni, which bond with Cl-, compared with Fe and Cr, which bond with H2O, illustrated the potential for a metal recovery for secondary liquid waste reduction.-
dc.languageEnglish-
dc.publisherELSEVIER-
dc.titleSurface decontamination of protective duplex oxide layers on stainless steel waste using deep eutectic solvents-
dc.typeArticle-
dc.identifier.wosid000734385900007-
dc.identifier.scopusid2-s2.0-85120998836-
dc.type.rimsART-
dc.citation.volume425-
dc.citation.publicationnameJOURNAL OF HAZARDOUS MATERIALS-
dc.identifier.doi10.1016/j.jhazmat.2021.128000-
dc.contributor.localauthorRyu, Ho Jin-
dc.contributor.nonIdAuthorKim, Nayoung-
dc.contributor.nonIdAuthorAmphlett, James-
dc.contributor.nonIdAuthorKim, Jae Joon-
dc.contributor.nonIdAuthorChoi, Sungyeol-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorRadioactive waste-
dc.subject.keywordAuthorGreen chemistry-
dc.subject.keywordAuthorMetal oxides-
dc.subject.keywordAuthorLeaching-
dc.subject.keywordPlusMETAL-OXIDES-
dc.subject.keywordPlusPOROUS-MEDIA-
dc.subject.keywordPlusOXIDATION-
dc.subject.keywordPlusDISSOLUTION-
dc.subject.keywordPlusPENETRATION-
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NE-Journal Papers(저널논문)
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