Oxidation of aquatic pollutants by ferrous-oxalate complexes under dark aerobic conditions
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jaesang | - |
dc.contributor.author | Kim, Jungwon | - |
dc.contributor.author | Choi, Wonyong | - |
dc.date.accessioned | 2021-09-05T07:52:53Z | - |
dc.date.available | 2021-09-05T07:52:53Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2014-06-15 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/98228 | - |
dc.description.abstract | This study evaluates the ability of Fe-II-oxalate complexes for the generation of (OH)-O-center dot through oxygen reduction and the oxidative degradation of aquatic pollutants under dark aerobic conditions (i.e., with oxygen but without light). The degradation of 4-chlorophenol (4-CP) was rapid in the mixture of Fe2+ and oxalate prepared using ultrapure water, but was absent without either Fe2+ or oxalate. The formation of Fe-II-oxalate complexes enables two-electron reduction of oxygen to generate H2O2 and subsequent production of (OH)-O-center dot. The significant inhibition of 4-CP degradation in the presence of H2O2 and (OH)-O-center dot scavenger confirms such mechanisms. The degradation experiments with varying [Fe2+], [oxalate], and initial pH demonstrated that the degradation rate depends on [Fe-II(Ox)(2)(2-)], but the degree of degradation is primarily determined by [Fe-II(Ox)(2)(2-)] + [Fe-II(Ox)(0)]. Efficient degradation of diverse aquatic pollutants, especially phenolic pollutants, was observed in the Fe-II-oxalate complexes system, wherein the oxidation efficacy was primarily correlated with the reaction rate constant between pollutant and (OH)-O-center dot. The effect of various organic ligands (oxalate, citrate, EDTA, malonate, and acetate) on the degradation kinetics of 4-CP was investigated. The highest efficiency of oxalate for the oxidative degradation is attributed to its high capability to enhance the reducing power and low reactivity with (OH)-O-center dot. (C) 2014 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | HYDROXYL RADICAL REACTIONS | - |
dc.subject | DISSOLVED ORGANIC-MATTER | - |
dc.subject | AQUEOUS-SOLUTION | - |
dc.subject | RATE CONSTANTS | - |
dc.subject | ABIOTIC REDUCTION | - |
dc.subject | OXALIC-ACID | - |
dc.subject | FE(III)-CITRATE COMPLEX | - |
dc.subject | FE(II) OXIDATION | - |
dc.subject | FENTONS REAGENT | - |
dc.subject | BROWN-ROT | - |
dc.title | Oxidation of aquatic pollutants by ferrous-oxalate complexes under dark aerobic conditions | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jaesang | - |
dc.identifier.doi | 10.1016/j.jhazmat.2014.03.056 | - |
dc.identifier.scopusid | 2-s2.0-84899680584 | - |
dc.identifier.wosid | 000337985600011 | - |
dc.identifier.bibliographicCitation | JOURNAL OF HAZARDOUS MATERIALS, v.274, pp.79 - 86 | - |
dc.relation.isPartOf | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.title | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.volume | 274 | - |
dc.citation.startPage | 79 | - |
dc.citation.endPage | 86 | - |
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.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | HYDROXYL RADICAL REACTIONS | - |
dc.subject.keywordPlus | DISSOLVED ORGANIC-MATTER | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTION | - |
dc.subject.keywordPlus | RATE CONSTANTS | - |
dc.subject.keywordPlus | ABIOTIC REDUCTION | - |
dc.subject.keywordPlus | OXALIC-ACID | - |
dc.subject.keywordPlus | FE(III)-CITRATE COMPLEX | - |
dc.subject.keywordPlus | FE(II) OXIDATION | - |
dc.subject.keywordPlus | FENTONS REAGENT | - |
dc.subject.keywordPlus | BROWN-ROT | - |
dc.subject.keywordAuthor | Ferrous-oxalate complexes | - |
dc.subject.keywordAuthor | Dark aerobic reaction | - |
dc.subject.keywordAuthor | OH radicals | - |
dc.subject.keywordAuthor | Oxidation | - |
dc.subject.keywordAuthor | Water treatment | - |
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