Nickel-Nickel oxide nanocomposite as a magnetically separable persulfate activator for the nonradical oxidation of organic contaminants
DC Field | Value | Language |
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dc.contributor.author | Kim, Hak-Hyeon | - |
dc.contributor.author | Lee, Donghyun | - |
dc.contributor.author | Choi, Jaemin | - |
dc.contributor.author | Lee, Hongshin | - |
dc.contributor.author | Seo, Jiwon | - |
dc.contributor.author | Kim, Taewan | - |
dc.contributor.author | Lee, Ki-Myeong | - |
dc.contributor.author | Anh Le-Tuan Pham | - |
dc.contributor.author | Lee, Changha | - |
dc.date.accessioned | 2021-08-31T02:48:14Z | - |
dc.date.available | 2021-08-31T02:48:14Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2020-04-15 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/56617 | - |
dc.description.abstract | The nanocomposite of metallic nickel and nickel oxide (denoted as Ni-NiO), synthesized by a simple sol-gel method, was found to activate peroxydisulfate (PDS), resulting in the effective oxidation of phenolic compounds and selected pharmaceuticals. A nonradical mechanism was proposed to explain the activation of PDS by Ni-NiO, in which organic contaminants are believed to be oxidized through an electron abstraction pathway mediated by the reactive complexes formed between PDS and the Ni-NiO surface. This mechanism was supported by multiple lines of evidence including radical scavenger experiments, the oxidation products, linear sweep voltammetry, and electron paramagnetic resonance spectroscopy. The Ni-NiO/PDS system exhibited a PDS utilization efficiency (expressed by the ratio of degraded organic contaminant to decomposed PDS) that was over 80%, and Ni-NiO showed a greater activity for PDS activation than a commercial nanoparticulate nickel oxide. This improved performance of Ni-NiO was attributed to the disproportioned incorporation of the metallic Ni into the NiO matrix, creating more sites with oxygen vacancy. Also owing to the metallic Ni, Ni-NiO possessed magnetic properties and therefore could be easily separated and reused. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | SITU CHEMICAL OXIDATION | - |
dc.subject | PHOTOCATALYTIC DEGRADATION | - |
dc.subject | GRAPHITIZED NANODIAMONDS | - |
dc.subject | INFLUENTIAL FACTORS | - |
dc.subject | RADICAL GENERATION | - |
dc.subject | HYDROXYL RADICALS | - |
dc.subject | CARBON NANOTUBES | - |
dc.subject | RATE CONSTANTS | - |
dc.subject | SULFATE | - |
dc.subject | PEROXYMONOSULFATE | - |
dc.title | Nickel-Nickel oxide nanocomposite as a magnetically separable persulfate activator for the nonradical oxidation of organic contaminants | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Hongshin | - |
dc.identifier.doi | 10.1016/j.jhazmat.2019.121767 | - |
dc.identifier.scopusid | 2-s2.0-85076237045 | - |
dc.identifier.wosid | 000524462500042 | - |
dc.identifier.bibliographicCitation | JOURNAL OF HAZARDOUS MATERIALS, v.388 | - |
dc.relation.isPartOf | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.title | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.volume | 388 | - |
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 | SITU CHEMICAL OXIDATION | - |
dc.subject.keywordPlus | PHOTOCATALYTIC DEGRADATION | - |
dc.subject.keywordPlus | GRAPHITIZED NANODIAMONDS | - |
dc.subject.keywordPlus | INFLUENTIAL FACTORS | - |
dc.subject.keywordPlus | RADICAL GENERATION | - |
dc.subject.keywordPlus | HYDROXYL RADICALS | - |
dc.subject.keywordPlus | CARBON NANOTUBES | - |
dc.subject.keywordPlus | RATE CONSTANTS | - |
dc.subject.keywordPlus | SULFATE | - |
dc.subject.keywordPlus | PEROXYMONOSULFATE | - |
dc.subject.keywordAuthor | Nickel oxide | - |
dc.subject.keywordAuthor | Metallic nickel | - |
dc.subject.keywordAuthor | Peroxydisulfate | - |
dc.subject.keywordAuthor | Nonradical mechanism | - |
dc.subject.keywordAuthor | Persulfate activation | - |
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