Role of nitrite ligands in enhancing sulfate radical production via catalytic peroxymonosulfate activation by cobalt complexes
DC Field | Value | Language |
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dc.contributor.author | Choi, Jaemin | - |
dc.contributor.author | Kim, Hyoung-il | - |
dc.contributor.author | Lee, Jaesang | - |
dc.contributor.author | Lee, Hongshin | - |
dc.date.accessioned | 2022-02-12T01:40:22Z | - |
dc.date.available | 2022-02-12T01:40:22Z | - |
dc.date.created | 2022-02-09 | - |
dc.date.issued | 2021-12-15 | - |
dc.identifier.issn | 1383-5866 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/135406 | - |
dc.description.abstract | In this study, hexanitrocobaltate (HN-Co(III)) was compared against Co2+ with respect to the capability for peroxymonosulfate (PMS) activation. The role of NO2- ligands in enhancing Co(II)/Co(III) cycling was confirmed based on the two-fold increase in the benzoic acid (BA) degradation efficiency of HN-Co(III)/PMS vs. Co2+/PMS and the negligible reduction in the activation performance of HN-Co(III) over repeated use. This was in line with accelerated BA degradation and catalytic activity recovery upon NO2- addition to Co2+/PMS. A negative shift in the anodic peak potential of the Co(II)/Co(III) couple and an increase in the anodic current over time imply that NO2- coordination promoted the capacity of Co(II) for PMS activation and facilitated the Co(III)-to-Co(II) conversion through hydrolysis. Along with sulfate radical as the primary oxidant, high-valent cobalt acted as the non-radical secondary oxidant based on the transformation of phenyl methyl sulfoxide to the corresponding sulfone in the HN-Co(III)/PMS mixtures. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | ZERO-VALENT IRON | - |
dc.subject | HETEROGENEOUS CATALYSTS | - |
dc.subject | ADVANCED OXIDATION | - |
dc.subject | ORGANIC-COMPOUNDS | - |
dc.subject | AQUEOUS-SOLUTION | - |
dc.subject | RATE CONSTANTS | - |
dc.subject | FERROUS ION | - |
dc.subject | DEGRADATION | - |
dc.subject | DECOMPOSITION | - |
dc.subject | REDUCTION | - |
dc.title | Role of nitrite ligands in enhancing sulfate radical production via catalytic peroxymonosulfate activation by cobalt complexes | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jaesang | - |
dc.identifier.doi | 10.1016/j.seppur.2021.119698 | - |
dc.identifier.scopusid | 2-s2.0-85115269656 | - |
dc.identifier.wosid | 000700927700008 | - |
dc.identifier.bibliographicCitation | SEPARATION AND PURIFICATION TECHNOLOGY, v.279 | - |
dc.relation.isPartOf | SEPARATION AND PURIFICATION TECHNOLOGY | - |
dc.citation.title | SEPARATION AND PURIFICATION TECHNOLOGY | - |
dc.citation.volume | 279 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | ADVANCED OXIDATION | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTION | - |
dc.subject.keywordPlus | DECOMPOSITION | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | FERROUS ION | - |
dc.subject.keywordPlus | HETEROGENEOUS CATALYSTS | - |
dc.subject.keywordPlus | ORGANIC-COMPOUNDS | - |
dc.subject.keywordPlus | RATE CONSTANTS | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | ZERO-VALENT IRON | - |
dc.subject.keywordAuthor | Cobalt complexation | - |
dc.subject.keywordAuthor | Enhanced recyclability | - |
dc.subject.keywordAuthor | High-valent cobalt | - |
dc.subject.keywordAuthor | Peroxymonosulfate activation | - |
dc.subject.keywordAuthor | Sulfate radical | - |
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