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001-es BibID:	BIBFORM081466
035-os BibID:	(WoS)000383295300010 (Scopus)84979938847
Első szerző:	Pino-Chamorro, Jose Ángel
Cím:	A detailed kinetic study of the direct photooxidation of 2,4,6-trichlorophenol / Jose Ángel Pino-Chamorro, Tamás Ditrói, Gábor Lente, István Fábián
Dátum:	2016
ISSN:	1010-6030
Megjegyzések:	The 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-dihclorohydroxyquinone 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.
Tárgyszavak:	Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Quantitative photochemistry Light intensity dependence Chlorophenols Temperature dependence Photochemical mechanism Kinetics Photodegradation 2,4,6-trichlorophenol Polychromatic light Mechanism of reaction Quantum yield
Megjelenés:	Journal Of Photochemistry And Photobiology A-Chemistry. - 330 (2016), p. 71-78. -
További szerzők:	Ditrói Tamás (1989-) (vegyész) Lente Gábor (1973-) (vegyész) Fábián István (1956-) (vegyész)
Pályázati támogatás:	TÁMOP-4.2.2.A-11/1/KONV-2012-0043 TÁMOP OTKA NK 105156 OTKA
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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