TRIBROMOPHENOL DEGRADATION BY A CATECHOL-DRTVEN FENTON REACTION

Tribromophenol (TBP) is a halogenated phenol mainly used as an intermediate of flame retardants in the electronics manufacturing industry as well as a fungicide in the wood industry to prevent fungal wood stain and decay. As a result of this massive use, its bio-availability, toxicity, and environme...

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Autores principales:	CONTRERAS,DAVID, OVIEDO,CLAUDIA, VALENZUELA,ROBERTO, FREER,JUANITA, ROJO,KIMENA, RODRÍGUEZ,JAIME
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2009
Materias:	Fenton tribromophenol catechol degradation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000200009
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spelling	oai:scielo:S0717-970720090002000092009-10-07TRIBROMOPHENOL DEGRADATION BY A CATECHOL-DRTVEN FENTON REACTIONCONTRERAS,DAVIDOVIEDO,CLAUDIAVALENZUELA,ROBERTOFREER,JUANITAROJO,KIMENARODRÍGUEZ,JAIME Fenton tribromophenol catechol degradation Tribromophenol (TBP) is a halogenated phenol mainly used as an intermediate of flame retardants in the electronics manufacturing industry as well as a fungicide in the wood industry to prevent fungal wood stain and decay. As a result of this massive use, its bio-availability, toxicity, and environmental fate are of increasing concern worldwide. TBP degradation by a catechol (CAT)-driven Fenton reaction was studied. In order to achieve the best yield in TBP degradation, an experimental design was applied for multivariate optimization of the experimental degrading system variables. At optimized concentrations, the CAT- driven Fenton reaction yielded 75% TBP degradation in 2 h at room temperature. The multivariate optimization showed that the highest TBP degradation (1 mol base) was obtained at a ratio of CAT: FeCl3: H2O2 = 0.150 : 0.211: 5.100 at pH = 3.4. A time course degradation of TBP comparing the CAT-driven Fenton reaction with the classical Fenton reaction is also presented. During the first hours of reaction (up to 8h), increased degradation efficiencies were observed in the CAT-driven Fenton reaction in comparison with the conventional Fenton reaction. Possible causes for the observed behavior are also discussed.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.54 n.2 20092009-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000200009en10.4067/S0717-97072009000200009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Fenton tribromophenol catechol degradation
spellingShingle	Fenton tribromophenol catechol degradation CONTRERAS,DAVID OVIEDO,CLAUDIA VALENZUELA,ROBERTO FREER,JUANITA ROJO,KIMENA RODRÍGUEZ,JAIME TRIBROMOPHENOL DEGRADATION BY A CATECHOL-DRTVEN FENTON REACTION
description	Tribromophenol (TBP) is a halogenated phenol mainly used as an intermediate of flame retardants in the electronics manufacturing industry as well as a fungicide in the wood industry to prevent fungal wood stain and decay. As a result of this massive use, its bio-availability, toxicity, and environmental fate are of increasing concern worldwide. TBP degradation by a catechol (CAT)-driven Fenton reaction was studied. In order to achieve the best yield in TBP degradation, an experimental design was applied for multivariate optimization of the experimental degrading system variables. At optimized concentrations, the CAT- driven Fenton reaction yielded 75% TBP degradation in 2 h at room temperature. The multivariate optimization showed that the highest TBP degradation (1 mol base) was obtained at a ratio of CAT: FeCl3: H2O2 = 0.150 : 0.211: 5.100 at pH = 3.4. A time course degradation of TBP comparing the CAT-driven Fenton reaction with the classical Fenton reaction is also presented. During the first hours of reaction (up to 8h), increased degradation efficiencies were observed in the CAT-driven Fenton reaction in comparison with the conventional Fenton reaction. Possible causes for the observed behavior are also discussed.
author	CONTRERAS,DAVID OVIEDO,CLAUDIA VALENZUELA,ROBERTO FREER,JUANITA ROJO,KIMENA RODRÍGUEZ,JAIME
author_facet	CONTRERAS,DAVID OVIEDO,CLAUDIA VALENZUELA,ROBERTO FREER,JUANITA ROJO,KIMENA RODRÍGUEZ,JAIME
author_sort	CONTRERAS,DAVID
title	TRIBROMOPHENOL DEGRADATION BY A CATECHOL-DRTVEN FENTON REACTION
title_short	TRIBROMOPHENOL DEGRADATION BY A CATECHOL-DRTVEN FENTON REACTION
title_full	TRIBROMOPHENOL DEGRADATION BY A CATECHOL-DRTVEN FENTON REACTION
title_fullStr	TRIBROMOPHENOL DEGRADATION BY A CATECHOL-DRTVEN FENTON REACTION
title_full_unstemmed	TRIBROMOPHENOL DEGRADATION BY A CATECHOL-DRTVEN FENTON REACTION
title_sort	tribromophenol degradation by a catechol-drtven fenton reaction
publisher	Sociedad Chilena de Química
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000200009
work_keys_str_mv	AT contrerasdavid tribromophenoldegradationbyacatecholdrtvenfentonreaction AT oviedoclaudia tribromophenoldegradationbyacatecholdrtvenfentonreaction AT valenzuelaroberto tribromophenoldegradationbyacatecholdrtvenfentonreaction AT freerjuanita tribromophenoldegradationbyacatecholdrtvenfentonreaction AT rojokimena tribromophenoldegradationbyacatecholdrtvenfentonreaction AT rodriguezjaime tribromophenoldegradationbyacatecholdrtvenfentonreaction
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TRIBROMOPHENOL DEGRADATION BY A CATECHOL-DRTVEN FENTON REACTION

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