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One-Step Synthesis of Transition Metal Dichalcogenide Quantum Dots Using Only Alcohol Solvents for Indoor-Light Photocatalytic Antibacterial Activity

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dc.contributor.authorHyun, Daesun-
dc.contributor.authorJoosung Kim-
dc.contributor.authorKo, Hyun-
dc.contributor.authorShin, Yonghun-
dc.contributor.authorPark, Jintaek-
dc.contributor.authorBak, Sora-
dc.contributor.authorLee, Jihun-
dc.contributor.authorYang, Junghee-
dc.contributor.authorBoo, Jin-Hyo-
dc.contributor.authorHyoyoung Lee-
dc.date.accessioned2023-07-03T22:01:49Z-
dc.date.available2023-07-03T22:01:49Z-
dc.date.created2023-05-30-
dc.date.issued2023-05-
dc.identifier.issn2576-6422-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/13562-
dc.description.abstractIn this study, we report a one-step direct synthesis of molybdenum disulfide (MoS2) and tungsten disulfide (WS2) quantum dots (QDs) through a solvothermal reaction using only alcohol solvents and efficient Escherichia coli (E. coli) decompositions as photocatalytic antibacterial agents under visible light irradiation. The solvothermal reaction gives the scission of molybdenum-sulfur (Mo-S) and tungsten-sulfur (W-S) bonding during the synthesis of MoS2 and WS2 QDs. Using only alcohol solvent does not require a residue purification process necessary for metal intercalation. As the number of the CH3 groups of alcohol solvents among ethyl, isopropyl, and tert(t)-butyl alcohols increases, the dispersibility of MoS2/WS2 increases. The CH3 groups of alcohols minimize the surface energy, leading to the effective exfoliation and disintegration of the bulk under heat and pressure. The bulky t-butyl alcohol with the highest number of methyl groups shows the highest exfoliation and yield. MoS2 QDs with a lateral size of about 2.5 nm and WS2 QDs of about 10 nm are prepared, exhibiting a strong blue luminescence under 365 nm ultraviolet (UV) light irradiation. Their heights are 0.68-3 and 0.72-5 nm, corresponding to a few layers of MoS2 and WS2, respectively. They offer a highly efficient performance in sterilizing E. coli as the visible-light-driven photocatalyst. © 2023 American Chemical Society-
dc.language영어-
dc.publisherAmerican Chemical Society-
dc.titleOne-Step Synthesis of Transition Metal Dichalcogenide Quantum Dots Using Only Alcohol Solvents for Indoor-Light Photocatalytic Antibacterial Activity-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.scopusid2-s2.0-85159639294-
dc.identifier.rimsid80858-
dc.contributor.affiliatedAuthorJoosung Kim-
dc.contributor.affiliatedAuthorHyoyoung Lee-
dc.identifier.doi10.1021/acsabm.3c00176-
dc.identifier.bibliographicCitationACS Applied Bio Materials, v.6, no.5, pp.1970 - 1980-
dc.relation.isPartOfACS Applied Bio Materials-
dc.citation.titleACS Applied Bio Materials-
dc.citation.volume6-
dc.citation.number5-
dc.citation.startPage1970-
dc.citation.endPage1980-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordAuthoralcohol solvent-
dc.subject.keywordAuthorE. coli decomposition-
dc.subject.keywordAuthorOne-step synthesis-
dc.subject.keywordAuthorsolvothermal reaction-
dc.subject.keywordAuthortransition metal dichalcogenide quantum dots-
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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