Phospholipid-derived Au and Au–Cu suspensions as efficient peroxide and borohydride activators for organic molecules degradation: Performance and sustainable catalytic mechanism
DC Field | Value | Language |
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dc.contributor.author | Kalidhasan, Sethu | - |
dc.contributor.author | Lim, Yeon-Su | - |
dc.contributor.author | Chu, Eun-Ae | - |
dc.contributor.author | Choi, Jonghoon | - |
dc.contributor.author | Lee, Hee-Young | - |
dc.date.accessioned | 2023-12-05T11:40:52Z | - |
dc.date.available | 2023-12-05T11:40:52Z | - |
dc.date.issued | 2024-01 | - |
dc.identifier.issn | 0045-6535 | - |
dc.identifier.issn | 1879-1298 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/68833 | - |
dc.description.abstract | In the contemporary context, executing light-oxidant- and reductant-driven reactions in solution-phase processes remains challenging mainly due to the lack of general tools for understanding the reactive potential of nano-functional catalysts. In this study, dual-active nanometals (Au and Cu doped with Au) capped within soy lecithin (SL), were developed and characterized, combining flexibility with the catalytic advantages and stability of liquid-phase catalysts. The as-synthesized SL-Au (LG) and SL-Au-Cu (LGC) catalysts were efficiently degraded rhodamine B (RB, 100%) in the presence of H2O2 under light irradiation (350 W lamp) at wide pH range (3–7) within 4.5 h and p-nitrophenol (p-NP, >90% degradation at pH 7) in the presence of NaBH4 under normal stirring with slower kinetics (∼72 h). RB degradation followed a pseudo-second-order kinetic model with a higher r2, and p-NP degradation followed first-order kinetics. The active sites embedded within the structural order of SL arrangement displayed elevated catalytic activity, which was further enhanced by the movement of intermediate/excited states and charged elements within the metal suspended in the phospholipid (LG and LGC). The self-regulating tunability of the physicochemical characteristics of these catalysts provides a convenient and generalizable platform for the transformation of modern dual-active (redox) catalysts into dynamic homogeneous equivalents. © 2023 Elsevier Ltd | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier Ltd | - |
dc.title | Phospholipid-derived Au and Au–Cu suspensions as efficient peroxide and borohydride activators for organic molecules degradation: Performance and sustainable catalytic mechanism | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.chemosphere.2023.140567 | - |
dc.identifier.bibliographicCitation | Chemosphere, v.346 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85176245450 | - |
dc.citation.title | Chemosphere | - |
dc.citation.volume | 346 | - |
dc.type.docType | Article | - |
dc.publisher.location | 영국 | - |
dc.subject.keywordAuthor | Degradation | - |
dc.subject.keywordAuthor | Gold–Copper NPs | - |
dc.subject.keywordAuthor | Redox catalyst | - |
dc.subject.keywordAuthor | Soy lecithin | - |
dc.description.journalRegisteredClass | scopus | - |
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