Contribution of Irradiation and Dihydroxybenzenes on Iron(III) Reduction in Fenton Process

Detalhes bibliográficos
Autor(a) principal: Silva,Beatriz Costa e
Data de Publicação: 2016
Outros Autores: Nogueira,Raquel F. P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532016000701195
Resumo: The contribution of irradiation and the dihydroxybenzenes (DHB), catechol (CAT) and hydroquinone (HQ), added or formed as phenol oxidation intermediates, was evaluated for the reduction of FeIII and for phenol degradation via Fenton processes. The formation of CAT and HQ was observed during phenol degradation starting with Fe2+ or Fe3+ in the presence or absence of irradiation and their presence increased the rate of phenol degradation, more remarkably when initially added. Initial phenol degradation rate in the presence of DHB in the dark was much higher in comparison to their absence due to the initial higher and faster formation of Fe2+. However, degradation slows down due to the rapid oxidation of DHB, while under irradiation of free iron or citrate complex much higher mineralization is achieved in shorter time.
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spelling Contribution of Irradiation and Dihydroxybenzenes on Iron(III) Reduction in Fenton ProcesscatecholhydroquinonecomplexphenolThe contribution of irradiation and the dihydroxybenzenes (DHB), catechol (CAT) and hydroquinone (HQ), added or formed as phenol oxidation intermediates, was evaluated for the reduction of FeIII and for phenol degradation via Fenton processes. The formation of CAT and HQ was observed during phenol degradation starting with Fe2+ or Fe3+ in the presence or absence of irradiation and their presence increased the rate of phenol degradation, more remarkably when initially added. Initial phenol degradation rate in the presence of DHB in the dark was much higher in comparison to their absence due to the initial higher and faster formation of Fe2+. However, degradation slows down due to the rapid oxidation of DHB, while under irradiation of free iron or citrate complex much higher mineralization is achieved in shorter time.Sociedade Brasileira de Química2016-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532016000701195Journal of the Brazilian Chemical Society v.27 n.7 2016reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20160015info:eu-repo/semantics/openAccessSilva,Beatriz Costa eNogueira,Raquel F. P.eng2016-07-26T00:00:00Zoai:scielo:S0103-50532016000701195Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2016-07-26T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Contribution of Irradiation and Dihydroxybenzenes on Iron(III) Reduction in Fenton Process
title Contribution of Irradiation and Dihydroxybenzenes on Iron(III) Reduction in Fenton Process
spellingShingle Contribution of Irradiation and Dihydroxybenzenes on Iron(III) Reduction in Fenton Process
Silva,Beatriz Costa e
catechol
hydroquinone
complex
phenol
title_short Contribution of Irradiation and Dihydroxybenzenes on Iron(III) Reduction in Fenton Process
title_full Contribution of Irradiation and Dihydroxybenzenes on Iron(III) Reduction in Fenton Process
title_fullStr Contribution of Irradiation and Dihydroxybenzenes on Iron(III) Reduction in Fenton Process
title_full_unstemmed Contribution of Irradiation and Dihydroxybenzenes on Iron(III) Reduction in Fenton Process
title_sort Contribution of Irradiation and Dihydroxybenzenes on Iron(III) Reduction in Fenton Process
author Silva,Beatriz Costa e
author_facet Silva,Beatriz Costa e
Nogueira,Raquel F. P.
author_role author
author2 Nogueira,Raquel F. P.
author2_role author
dc.contributor.author.fl_str_mv Silva,Beatriz Costa e
Nogueira,Raquel F. P.
dc.subject.por.fl_str_mv catechol
hydroquinone
complex
phenol
topic catechol
hydroquinone
complex
phenol
description The contribution of irradiation and the dihydroxybenzenes (DHB), catechol (CAT) and hydroquinone (HQ), added or formed as phenol oxidation intermediates, was evaluated for the reduction of FeIII and for phenol degradation via Fenton processes. The formation of CAT and HQ was observed during phenol degradation starting with Fe2+ or Fe3+ in the presence or absence of irradiation and their presence increased the rate of phenol degradation, more remarkably when initially added. Initial phenol degradation rate in the presence of DHB in the dark was much higher in comparison to their absence due to the initial higher and faster formation of Fe2+. However, degradation slows down due to the rapid oxidation of DHB, while under irradiation of free iron or citrate complex much higher mineralization is achieved in shorter time.
publishDate 2016
dc.date.none.fl_str_mv 2016-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532016000701195
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532016000701195
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0103-5053.20160015
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.27 n.7 2016
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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