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dc.contributor.authorPino-Chamorro, Jose Ángel
dc.contributor.authorDitrói, Tamás
dc.contributor.authorLente, Gábor
dc.contributor.authorFábián, István
dc.contributor.otherQuímica Analíticaen_US
dc.date.accessioned2018-04-18T11:01:01Z
dc.date.available2018-04-18T11:01:01Z
dc.date.issued2016-07
dc.identifier.urihttp://hdl.handle.net/10498/20354
dc.description.abstractThe direct photodegradation of 2,4,6-trichlorophenol (TCP) by UV–vis light was studied in aqueous solution in order to analyze the mechanism of the photochemical process and to determine the kinetic parameters including the quantum yield. Based on initial rate studies at different overall volumes and illumination patterns, it was proved that the rate of the process is directly proportional to the intensity of irradiating light. A significant, but moderate acceleration of the reaction rate with increasing temperature was revealed between 5.0 and 35.0 C, which could be interpreted readily by assuming that the excited state of TCP is involved in two competing processes. High pressure liquid chromatography and mass spectrometry provided us information on the nature of the intermediates and the products formed. 2,6- Dichloro-1,4-benzoquinone, 3,5-dichloro-2-hydroxy-1,4-benzoquinone and 2,6 dihclorohydroxyqui- none were detected as products and/or intermediates, and there were also hints of the formation of 3,5-dichlorobenzene-1,2-diol and 3,5-dichloro-1,2-benzoquinone. A possible degradation mechanism is proposed to interpret the kinetic findings.en_US
dc.formatapplication/pdfen_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.sourceJournal of Photochemistry and Photobiology A: Chemistry 330 (2016) 71–78en_US
dc.subjectquantitative photochemistryen_US
dc.subjectlight intensity dependenceen_US
dc.subjectchlorophenolsen_US
dc.subjecttemperature dependenceen_US
dc.subjectphotochemical mechanismen_US
dc.subjectkineticsen_US
dc.subjectphotodegradationen_US
dc.subject2,4,6-trichlorophenolen_US
dc.subjectpolychromatic lighten_US
dc.subjectmechanism of reactionen_US
dc.subjectquantum yielden_US
dc.titleA detailed kinetic study of the direct photooxidation of 2,4,6-trichlorophenolen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.identifier.doi10.1016/j.jphotochem.2016.07.025


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
This work is under a Creative Commons License Attribution-NonCommercial-NoDerivatives 4.0 Internacional