Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction

Detalhes bibliográficos
Autor(a) principal: Costa,Mayara Carantino
Data de Publicação: 2012
Outros Autores: Mota,Francisco Suetônio B., Santos,André Bezerra Dos, Mendonça,Glaydson Leandro Farias, Nascimento,Ronaldo Ferreira do
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000300008
Resumo: We investigated the biological decolourisation of dyes with different molecular structures. The kinetic constant values (k1) achieved with azo dye Reactive Red 120 were 7.6 and 10.1 times higher in the presence of RM (redox mediators) AQDS and riboflavin, respectively, than the assays lacking RM. The kinetic constant achieved with the azo dye Congo Red was 42 times higher than that obtained with the anthraquinone dye Reactive Blue 4. The effect of RM on dye reduction was more evident for azo dyes resistant to reductive processes, and ineffective for anthraquinone dyes because of the structural stability of the latter.
id SBQ-3_fd4ca7c520afee39ef145c607d9d7355
oai_identifier_str oai:scielo:S0100-40422012000300008
network_acronym_str SBQ-3
network_name_str Química Nova (Online)
repository_id_str
spelling Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reductioncolour removaldyesstructure/activityWe investigated the biological decolourisation of dyes with different molecular structures. The kinetic constant values (k1) achieved with azo dye Reactive Red 120 were 7.6 and 10.1 times higher in the presence of RM (redox mediators) AQDS and riboflavin, respectively, than the assays lacking RM. The kinetic constant achieved with the azo dye Congo Red was 42 times higher than that obtained with the anthraquinone dye Reactive Blue 4. The effect of RM on dye reduction was more evident for azo dyes resistant to reductive processes, and ineffective for anthraquinone dyes because of the structural stability of the latter.Sociedade Brasileira de Química2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000300008Química Nova v.35 n.3 2012reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422012000300008info:eu-repo/semantics/openAccessCosta,Mayara CarantinoMota,Francisco Suetônio B.Santos,André Bezerra DosMendonça,Glaydson Leandro FariasNascimento,Ronaldo Ferreira doeng2012-04-24T00:00:00Zoai:scielo:S0100-40422012000300008Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2012-04-24T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction
title Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction
spellingShingle Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction
Costa,Mayara Carantino
colour removal
dyes
structure/activity
title_short Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction
title_full Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction
title_fullStr Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction
title_full_unstemmed Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction
title_sort Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction
author Costa,Mayara Carantino
author_facet Costa,Mayara Carantino
Mota,Francisco Suetônio B.
Santos,André Bezerra Dos
Mendonça,Glaydson Leandro Farias
Nascimento,Ronaldo Ferreira do
author_role author
author2 Mota,Francisco Suetônio B.
Santos,André Bezerra Dos
Mendonça,Glaydson Leandro Farias
Nascimento,Ronaldo Ferreira do
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Costa,Mayara Carantino
Mota,Francisco Suetônio B.
Santos,André Bezerra Dos
Mendonça,Glaydson Leandro Farias
Nascimento,Ronaldo Ferreira do
dc.subject.por.fl_str_mv colour removal
dyes
structure/activity
topic colour removal
dyes
structure/activity
description We investigated the biological decolourisation of dyes with different molecular structures. The kinetic constant values (k1) achieved with azo dye Reactive Red 120 were 7.6 and 10.1 times higher in the presence of RM (redox mediators) AQDS and riboflavin, respectively, than the assays lacking RM. The kinetic constant achieved with the azo dye Congo Red was 42 times higher than that obtained with the anthraquinone dye Reactive Blue 4. The effect of RM on dye reduction was more evident for azo dyes resistant to reductive processes, and ineffective for anthraquinone dyes because of the structural stability of the latter.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-01
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=S0100-40422012000300008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000300008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422012000300008
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 Química Nova v.35 n.3 2012
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
_version_ 1750318113131331584

Registros relacionados