Interaction of anionic azo dye and TTAB: cationic surfactant
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , |
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=S0103-50532009000300008 |
Resumo: | Interaction between three anionic azo dyes, C.I. Acid Red 14 (AR14), C.I. Acid Red 1 (AR1), C.I. Acid Orange 7 (AO7) and a cationic surfactant tetradecyltrimethylammonium bromide (TTAB) has been investigated using surfactant selective electrode technique. The TTAB selective electrode was constructed and used to determine the concentration of TTAB monomers and also surfactant ions bounded to dyes by electromotive force data. The dye-surfactant complex formation constant, K1, and the standard free energy change, ΔG1º, could be obtained from the experimental data. The results indicate that in the TTAB/AO7 system, where the more hydrophobic dye AO7 is used, the dye-surfactant interactions are stronger than in other systems. The results also indicate that both the electrostatic attractive and the hydrophobic interactions are very important for the formation of the complex between the oppositely-charged dyes and the surfactant. Maximum binding capacities of the dyes and also the degree of binding of the surfactant to the dyes were calculated from the experimental data. |
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Journal of the Brazilian Chemical Society (Online) |
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Interaction of anionic azo dye and TTAB: cationic surfactantion selective electrodeanionic azo dyedye-surfactant interactionsTTABAcid Red 14Acid Red 1Acid Orange 7Interaction between three anionic azo dyes, C.I. Acid Red 14 (AR14), C.I. Acid Red 1 (AR1), C.I. Acid Orange 7 (AO7) and a cationic surfactant tetradecyltrimethylammonium bromide (TTAB) has been investigated using surfactant selective electrode technique. The TTAB selective electrode was constructed and used to determine the concentration of TTAB monomers and also surfactant ions bounded to dyes by electromotive force data. The dye-surfactant complex formation constant, K1, and the standard free energy change, ΔG1º, could be obtained from the experimental data. The results indicate that in the TTAB/AO7 system, where the more hydrophobic dye AO7 is used, the dye-surfactant interactions are stronger than in other systems. The results also indicate that both the electrostatic attractive and the hydrophobic interactions are very important for the formation of the complex between the oppositely-charged dyes and the surfactant. Maximum binding capacities of the dyes and also the degree of binding of the surfactant to the dyes were calculated from the experimental data.Sociedade Brasileira de Química2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000300008Journal of the Brazilian Chemical Society v.20 n.3 2009reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532009000300008info:eu-repo/semantics/openAccessGhoreishi,Sayed MehdiBehpour,MohsenShabani-Nooshabadi,Mehdieng2009-05-25T00:00:00Zoai:scielo:S0103-50532009000300008Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2009-05-25T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Interaction of anionic azo dye and TTAB: cationic surfactant |
title |
Interaction of anionic azo dye and TTAB: cationic surfactant |
spellingShingle |
Interaction of anionic azo dye and TTAB: cationic surfactant Ghoreishi,Sayed Mehdi ion selective electrode anionic azo dye dye-surfactant interactions TTAB Acid Red 14 Acid Red 1 Acid Orange 7 |
title_short |
Interaction of anionic azo dye and TTAB: cationic surfactant |
title_full |
Interaction of anionic azo dye and TTAB: cationic surfactant |
title_fullStr |
Interaction of anionic azo dye and TTAB: cationic surfactant |
title_full_unstemmed |
Interaction of anionic azo dye and TTAB: cationic surfactant |
title_sort |
Interaction of anionic azo dye and TTAB: cationic surfactant |
author |
Ghoreishi,Sayed Mehdi |
author_facet |
Ghoreishi,Sayed Mehdi Behpour,Mohsen Shabani-Nooshabadi,Mehdi |
author_role |
author |
author2 |
Behpour,Mohsen Shabani-Nooshabadi,Mehdi |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Ghoreishi,Sayed Mehdi Behpour,Mohsen Shabani-Nooshabadi,Mehdi |
dc.subject.por.fl_str_mv |
ion selective electrode anionic azo dye dye-surfactant interactions TTAB Acid Red 14 Acid Red 1 Acid Orange 7 |
topic |
ion selective electrode anionic azo dye dye-surfactant interactions TTAB Acid Red 14 Acid Red 1 Acid Orange 7 |
description |
Interaction between three anionic azo dyes, C.I. Acid Red 14 (AR14), C.I. Acid Red 1 (AR1), C.I. Acid Orange 7 (AO7) and a cationic surfactant tetradecyltrimethylammonium bromide (TTAB) has been investigated using surfactant selective electrode technique. The TTAB selective electrode was constructed and used to determine the concentration of TTAB monomers and also surfactant ions bounded to dyes by electromotive force data. The dye-surfactant complex formation constant, K1, and the standard free energy change, ΔG1º, could be obtained from the experimental data. The results indicate that in the TTAB/AO7 system, where the more hydrophobic dye AO7 is used, the dye-surfactant interactions are stronger than in other systems. The results also indicate that both the electrostatic attractive and the hydrophobic interactions are very important for the formation of the complex between the oppositely-charged dyes and the surfactant. Maximum binding capacities of the dyes and also the degree of binding of the surfactant to the dyes were calculated from the experimental data. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 |
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=S0103-50532009000300008 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000300008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532009000300008 |
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.20 n.3 2009 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 |
_version_ |
1750318169779601408 |