A systematic study of the effects of solvents on phenanthrene photooxidation SCIE SCOPUS
DC Field | Value | Language |
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dc.contributor.author | Shankar, Ravi | - |
dc.contributor.author | An, Joon Geon | - |
dc.contributor.author | Loh, Andrew | - |
dc.contributor.author | Yim, Un Hyuk | - |
dc.date.accessioned | 2020-04-16T08:15:17Z | - |
dc.date.available | 2020-04-16T08:15:17Z | - |
dc.date.created | 2020-02-04 | - |
dc.date.issued | 2019-04 | - |
dc.identifier.issn | 0045-6535 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/660 | - |
dc.description.abstract | A systematic study of the photooxidation of phenanthrene under simulated environmental conditions was conducted in vitro using polar (methanol, acetonitrile) and non-polar (isooctane, hexane) solvents as media. In all solvents, phenanthrene concentration decreased exponentially as exposure time increased. Fourier-transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometry (GC-MS) analysis were used to investigate the structural changes induced by photooxidation. After 24 h of photooxidation, FTIR showed the formation of characteristic bands of carboxylic acid in all solvents. In non-polar solvents, characteristic phenanthrene peaks were completely depleted after 48 h. In polar solvents, phenanthrene peaks disappeared at a slower rate, with peaks in acetonitrile disappearing at 72 h and methanol persisting at trace levels at 96 h. The reaction rate was higher in non-polar solvents. The obtained half-lives were observed in the following order: isooctane (13.2 h)> hexane (13.5 h)> methanol (18.0 h)> acetonitrile (22.8 h). FTIR and GC-MS results were in good agreement and showed the formation of carboxylic acids, aldehydes, and ketones in polar solvents and carboxylic acids, alkanes, and alkanoic acids in non-polar solvents. Products such as primary amides induced by solvent effects were observed in acetonitrile. Based on the results, the solvents were rated and a solvent selection guide for photooxidation of PAHs was provided. (C) 2019 Elsevier Ltd. All rights reserved. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | POLYCYCLIC AROMATIC-HYDROCARBONS | - |
dc.subject | AQUEOUS PHOTODEGRADATION | - |
dc.subject | ORGANIC-SOLVENTS | - |
dc.subject | CRUDE-OIL | - |
dc.subject | PHOTOCHEMICAL DEGRADATION | - |
dc.subject | PHOTOLYSIS | - |
dc.subject | PAHS | - |
dc.subject | WATER | - |
dc.subject | KINETICS | - |
dc.subject | IDENTIFICATION | - |
dc.title | A systematic study of the effects of solvents on phenanthrene photooxidation | - |
dc.type | Article | - |
dc.citation.endPage | 909 | - |
dc.citation.startPage | 900 | - |
dc.citation.title | CHEMOSPHERE | - |
dc.citation.volume | 220 | - |
dc.contributor.alternativeName | RAVI | - |
dc.contributor.alternativeName | 안준건 | - |
dc.contributor.alternativeName | Andrew | - |
dc.contributor.alternativeName | 임운혁 | - |
dc.identifier.bibliographicCitation | CHEMOSPHERE, v.220, pp.900 - 909 | - |
dc.identifier.doi | 10.1016/j.chemosphere.2018.12.206 | - |
dc.identifier.scopusid | 2-s2.0-85059445762 | - |
dc.identifier.wosid | 000458591200099 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | POLYCYCLIC AROMATIC-HYDROCARBONS | - |
dc.subject.keywordPlus | AQUEOUS PHOTODEGRADATION | - |
dc.subject.keywordPlus | ORGANIC-SOLVENTS | - |
dc.subject.keywordPlus | CRUDE-OIL | - |
dc.subject.keywordPlus | PHOTOCHEMICAL DEGRADATION | - |
dc.subject.keywordPlus | PHOTOLYSIS | - |
dc.subject.keywordPlus | PAHS | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordPlus | IDENTIFICATION | - |
dc.subject.keywordAuthor | Phenanthrene | - |
dc.subject.keywordAuthor | Photooxidation | - |
dc.subject.keywordAuthor | Solvents | - |
dc.subject.keywordAuthor | Photoproducts | - |
dc.subject.keywordAuthor | FTIR | - |
dc.subject.keywordAuthor | GC-MS | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |