Effect of Operating Parameters on Electrochemical Discoloration of Acid Blue 1 on BDD Electrode

Detalhes bibliográficos
Autor(a) principal: Ayoub,Z.A.
Data de Publicação: 2017
Outros Autores: El Jamal,M.M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200002
Resumo: The degradation of the AB1 dye by electro-generated species using a BDD electrode was performed. The results were explained by the generation of OH* radical, S2O82- in the presence of sulfate, and active halide species in the presence of halide salt. The discoloration rate increases in this order: sulfate, KCl, KBr. In the presence of KCl, the discoloration is affected by the current density, initial pH, temperature, and concentration of the supporting electrolyte; however, the concentration of the dye and the ionic strength showed a negligible effect. The intermediates produced during the discoloration are a function of the pH of the solution. In the presence of sulfate, the discoloration rate is very slow, and the mechanism of discoloration is different from that in the presence of KCl. The thermodynamic parameters of the discoloration are calculated.
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spelling Effect of Operating Parameters on Electrochemical Discoloration of Acid Blue 1 on BDD ElectrodeBDD electrodeAcid Blue 1discolorationkineticstrong electrolyteThe degradation of the AB1 dye by electro-generated species using a BDD electrode was performed. The results were explained by the generation of OH* radical, S2O82- in the presence of sulfate, and active halide species in the presence of halide salt. The discoloration rate increases in this order: sulfate, KCl, KBr. In the presence of KCl, the discoloration is affected by the current density, initial pH, temperature, and concentration of the supporting electrolyte; however, the concentration of the dye and the ionic strength showed a negligible effect. The intermediates produced during the discoloration are a function of the pH of the solution. In the presence of sulfate, the discoloration rate is very slow, and the mechanism of discoloration is different from that in the presence of KCl. The thermodynamic parameters of the discoloration are calculated.Sociedade Portuguesa de Electroquímica2017-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200002Portugaliae Electrochimica Acta v.35 n.2 2017reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200002Ayoub,Z.A.El Jamal,M.M.info:eu-repo/semantics/openAccess2024-02-06T17:07:23Zoai:scielo:S0872-19042017000200002Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:19.498188Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Effect of Operating Parameters on Electrochemical Discoloration of Acid Blue 1 on BDD Electrode
title Effect of Operating Parameters on Electrochemical Discoloration of Acid Blue 1 on BDD Electrode
spellingShingle Effect of Operating Parameters on Electrochemical Discoloration of Acid Blue 1 on BDD Electrode
Ayoub,Z.A.
BDD electrode
Acid Blue 1
discoloration
kinetic
strong electrolyte
title_short Effect of Operating Parameters on Electrochemical Discoloration of Acid Blue 1 on BDD Electrode
title_full Effect of Operating Parameters on Electrochemical Discoloration of Acid Blue 1 on BDD Electrode
title_fullStr Effect of Operating Parameters on Electrochemical Discoloration of Acid Blue 1 on BDD Electrode
title_full_unstemmed Effect of Operating Parameters on Electrochemical Discoloration of Acid Blue 1 on BDD Electrode
title_sort Effect of Operating Parameters on Electrochemical Discoloration of Acid Blue 1 on BDD Electrode
author Ayoub,Z.A.
author_facet Ayoub,Z.A.
El Jamal,M.M.
author_role author
author2 El Jamal,M.M.
author2_role author
dc.contributor.author.fl_str_mv Ayoub,Z.A.
El Jamal,M.M.
dc.subject.por.fl_str_mv BDD electrode
Acid Blue 1
discoloration
kinetic
strong electrolyte
topic BDD electrode
Acid Blue 1
discoloration
kinetic
strong electrolyte
description The degradation of the AB1 dye by electro-generated species using a BDD electrode was performed. The results were explained by the generation of OH* radical, S2O82- in the presence of sulfate, and active halide species in the presence of halide salt. The discoloration rate increases in this order: sulfate, KCl, KBr. In the presence of KCl, the discoloration is affected by the current density, initial pH, temperature, and concentration of the supporting electrolyte; however, the concentration of the dye and the ionic strength showed a negligible effect. The intermediates produced during the discoloration are a function of the pH of the solution. In the presence of sulfate, the discoloration rate is very slow, and the mechanism of discoloration is different from that in the presence of KCl. The thermodynamic parameters of the discoloration are calculated.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-01
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://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200002
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200002
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 Portuguesa de Electroquímica
publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
dc.source.none.fl_str_mv Portugaliae Electrochimica Acta v.35 n.2 2017
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799137291512315904

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