Electrochemical degradation of the dye reactive orange 16 using electrochemical flow-cell

Detalhes bibliográficos
Autor(a) principal: Gomes,Luciano
Data de Publicação: 2011
Outros Autores: Miwa,Douglas W, Malpass,Geoffroy R. P, Motheo,Artur J
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=S0103-50532011000700015
Resumo: Electrochemical removals of color and organic load from solutions containing the dye reactive orange 16 (RO16) were performed in an electrochemical flow-cell, using a platinum working electrode. The influence of the process variables flow-rate, such as NaCl concentration, applied potential and solution pH, were studied. The best color removal achieved was 93% (λ = 493 nm) after 60 min at 2.2 V vs. RHE electrolysis, using 1.00 g L-1 NaCl as supporting electrolyte. The rises in the concentration of NaCl and applied potential increased the color removal rate. The best total organic carbon removal (57%) was obtained at 1.8 V, without the separating membrane, indicating that the ideal conditions for the color removal are not necessarily the same as those to remove the total organic carbon. The degradation efficiency decreased with the solution pH decrease.
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spelling Electrochemical degradation of the dye reactive orange 16 using electrochemical flow-celldecolorizationtextile effluentelectrochemical degradationreactive dyePt electrodeElectrochemical removals of color and organic load from solutions containing the dye reactive orange 16 (RO16) were performed in an electrochemical flow-cell, using a platinum working electrode. The influence of the process variables flow-rate, such as NaCl concentration, applied potential and solution pH, were studied. The best color removal achieved was 93% (λ = 493 nm) after 60 min at 2.2 V vs. RHE electrolysis, using 1.00 g L-1 NaCl as supporting electrolyte. The rises in the concentration of NaCl and applied potential increased the color removal rate. The best total organic carbon removal (57%) was obtained at 1.8 V, without the separating membrane, indicating that the ideal conditions for the color removal are not necessarily the same as those to remove the total organic carbon. The degradation efficiency decreased with the solution pH decrease.Sociedade Brasileira de Química2011-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000700015Journal of the Brazilian Chemical Society v.22 n.7 2011reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532011000700015info:eu-repo/semantics/openAccessGomes,LucianoMiwa,Douglas WMalpass,Geoffroy R. PMotheo,Artur Jeng2011-07-22T00:00:00Zoai:scielo:S0103-50532011000700015Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2011-07-22T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Electrochemical degradation of the dye reactive orange 16 using electrochemical flow-cell
title Electrochemical degradation of the dye reactive orange 16 using electrochemical flow-cell
spellingShingle Electrochemical degradation of the dye reactive orange 16 using electrochemical flow-cell
Gomes,Luciano
decolorization
textile effluent
electrochemical degradation
reactive dye
Pt electrode
title_short Electrochemical degradation of the dye reactive orange 16 using electrochemical flow-cell
title_full Electrochemical degradation of the dye reactive orange 16 using electrochemical flow-cell
title_fullStr Electrochemical degradation of the dye reactive orange 16 using electrochemical flow-cell
title_full_unstemmed Electrochemical degradation of the dye reactive orange 16 using electrochemical flow-cell
title_sort Electrochemical degradation of the dye reactive orange 16 using electrochemical flow-cell
author Gomes,Luciano
author_facet Gomes,Luciano
Miwa,Douglas W
Malpass,Geoffroy R. P
Motheo,Artur J
author_role author
author2 Miwa,Douglas W
Malpass,Geoffroy R. P
Motheo,Artur J
author2_role author
author
author
dc.contributor.author.fl_str_mv Gomes,Luciano
Miwa,Douglas W
Malpass,Geoffroy R. P
Motheo,Artur J
dc.subject.por.fl_str_mv decolorization
textile effluent
electrochemical degradation
reactive dye
Pt electrode
topic decolorization
textile effluent
electrochemical degradation
reactive dye
Pt electrode
description Electrochemical removals of color and organic load from solutions containing the dye reactive orange 16 (RO16) were performed in an electrochemical flow-cell, using a platinum working electrode. The influence of the process variables flow-rate, such as NaCl concentration, applied potential and solution pH, were studied. The best color removal achieved was 93% (λ = 493 nm) after 60 min at 2.2 V vs. RHE electrolysis, using 1.00 g L-1 NaCl as supporting electrolyte. The rises in the concentration of NaCl and applied potential increased the color removal rate. The best total organic carbon removal (57%) was obtained at 1.8 V, without the separating membrane, indicating that the ideal conditions for the color removal are not necessarily the same as those to remove the total organic carbon. The degradation efficiency decreased with the solution pH decrease.
publishDate 2011
dc.date.none.fl_str_mv 2011-07-01
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=S0103-50532011000700015
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000700015
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532011000700015
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.22 n.7 2011
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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