Contribution of irradiation and dihydroxybenzenes on iron(III) reduction in fenton process

Detalhes bibliográficos
Autor(a) principal: Silva, Beatriz Costa E [UNESP]
Data de Publicação: 2016
Outros Autores: Nogueira, Raquel F. P. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.5935/0103-5053.20160015
http://hdl.handle.net/11449/173355
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 processCatecholComplexHydroquinonePhenolThe 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.Departamento de Química Analítica Instituto de Química Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), CP 355Departamento de Química Analítica Instituto de Química Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), CP 355Universidade Estadual Paulista (Unesp)Silva, Beatriz Costa E [UNESP]Nogueira, Raquel F. P. [UNESP]2018-12-11T17:04:48Z2018-12-11T17:04:48Z2016-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1195-1201application/pdfhttp://dx.doi.org/10.5935/0103-5053.20160015Journal of the Brazilian Chemical Society, v. 27, n. 7, p. 1195-1201, 2016.1678-47900103-5053http://hdl.handle.net/11449/17335510.5935/0103-5053.20160015S0103-505320160007011952-s2.0-84982267555S0103-50532016000701195.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Chemical Society0,3570,357info:eu-repo/semantics/openAccess2023-12-30T06:23:15Zoai:repositorio.unesp.br:11449/173355Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:43:44.510023Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)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 [UNESP]
Catechol
Complex
Hydroquinone
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 [UNESP]
author_facet Silva, Beatriz Costa E [UNESP]
Nogueira, Raquel F. P. [UNESP]
author_role author
author2 Nogueira, Raquel F. P. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Silva, Beatriz Costa E [UNESP]
Nogueira, Raquel F. P. [UNESP]
dc.subject.por.fl_str_mv Catechol
Complex
Hydroquinone
Phenol
topic Catechol
Complex
Hydroquinone
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 2016-07-01
2018-12-11T17:04:48Z
2018-12-11T17:04:48Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.5935/0103-5053.20160015
Journal of the Brazilian Chemical Society, v. 27, n. 7, p. 1195-1201, 2016.
1678-4790
0103-5053
http://hdl.handle.net/11449/173355
10.5935/0103-5053.20160015
S0103-50532016000701195
2-s2.0-84982267555
S0103-50532016000701195.pdf
url http://dx.doi.org/10.5935/0103-5053.20160015
http://hdl.handle.net/11449/173355
identifier_str_mv Journal of the Brazilian Chemical Society, v. 27, n. 7, p. 1195-1201, 2016.
1678-4790
0103-5053
10.5935/0103-5053.20160015
S0103-50532016000701195
2-s2.0-84982267555
S0103-50532016000701195.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of the Brazilian Chemical Society
0,357
0,357
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1195-1201
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129351521140736

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