About: Degradation of 4-chlorophenol in aqueous solution photoinduced by Fe(III)-citrate complex

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About: Degradation of 4-chlorophenol in aqueous solution photoinduced by Fe(III)-citrate complex Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The 4-chlorophenol (4-CP) degradation photoinduced by Fe(III)-citrate complex was investigated upon irradiation at 365 nm at different pHs (2.0, 3.0, 4.0 and 6.0). The best efficiency for 4-CP degradation in the presence of Fe(III)-citrate was at pH 3.0 with a value of quantum yield equal to 0.026. This effect is mainly attributed to speciation of Fe(III)-citrate complex which is very sensitive to the pH. Quantum yields of 4-CP degradation, Fe(III)-citrate disappearance and Fe(II) formation were carried out at wavelength 365 nm at different pHs (3.0 and 6.0). The effect of the pH is less pronounced for the quantum yields of 4-CP than for Fe(III)-citrate complex and Fe(II) quantum yields which are species involved in the initial photochemical process. The effect of oxygen, isopropanol and Fe(III)-citrate concentrations on the quantum yields of 4-CP degradation and also on kinetics of 4-CP disappearance was also studied. Indeed, 4-CP requires the presence of oxygen to be degraded. The disappearance of 4-CP was totally inhibited without oxygen dissolved in the solution. Oxygen is essential for the formation of oxidative species and, as a consequence, for the degradation of the pollutant. The 4-chlorophenol (4-CP) degradation photoinduced by Fe(III)-citrate complex was investigated upon irradiation at 365 nm at different pHs (2.0, 3.0, 4.0 and 6.0). The best efficiency for 4-CP degradation in the presence of Fe(III)-citrate was at pH 3.0 with a value of quantum yield equal to 0.026. This effect is mainly attributed to speciation of Fe(III)-citrate complex which is very sensitive to the pH. Quantum yields of 4-CP degradation, Fe(III)-citrate disappearance and Fe(II) formation were carried out at wavelength 365 nm at different pHs (3.0 and 6.0). The effect of the pH is less pronounced for the quantum yields of 4-CP than for Fe(III)-citrate complex and Fe(II) quantum yields which are species involved in the initial photochemical process. The effect of oxygen, isopropanol and Fe(III)-citrate concentrations on the quantum yields of 4-CP degradation and also on kinetics of 4-CP disappearance was also studied. Indeed, 4-CP requires the presence of oxygen to be degraded. The disappearance of 4-CP was totally inhibited without oxygen dissolved in the solution. Oxygen is essential for the formation of oxidative species and, as a consequence, for the degradation of the pollutant. (en)
Title	Degradation of 4-chlorophenol in aqueous solution photoinduced by Fe(III)-citrate complex Degradation of 4-chlorophenol in aqueous solution photoinduced by Fe(III)-citrate complex (en)
skos:prefLabel	Degradation of 4-chlorophenol in aqueous solution photoinduced by Fe(III)-citrate complex Degradation of 4-chlorophenol in aqueous solution photoinduced by Fe(III)-citrate complex (en)
skos:notation	RIV/61388955:_____/12:00437107!RIV15-AV0-61388955
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Kolář, Michal Jirkovský, Jaromír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	129906
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/12:00437107
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	photochemistry; citric acid; hydroxyl radicals (en)
http://linked.open.../riv/klicoveSlovo	hydroxyl radicals photochemistry citric acid
http://linked.open...odStatuVydavatele	FR - Francouzská republika
http://linked.open...ontrolniKodProRIV	[AFCF9EA21C45]
http://linked.open...i/riv/nazevZdroje	Photochemical & Photobiological Sciences
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	11
http://linked.open...iv/tvurceVysledku	Jirkovský, Jaromír Kolář, Michal Mailhot, G. Abida, O.
http://linked.open...ain/vavai/riv/wos	000303207400003
issn	1474-905X
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1039/c2pp05358f

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