Evaluation of the adsorption capacity of orange 16 reactive dye for chitosan

Detalhes bibliográficos
Autor(a) principal: Kimura, Irene Yukiko
Data de Publicação: 2008
Outros Autores: Fávere, Valfredo Tadeu de, Laranjeira, Mauro César Marghetti, Josué, Atche, Nascimento, Amauri do
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta scientiarum. Technology (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3003
Resumo: Chitosan (87.2% NH2) was employed as adsorbent for the orange 16 reactive dye in an aqueous medium. The dye is used in textile dyeing. Isotherms of adsorption were determined according to variations of pH and the initial concentration of the dye. Results of adsorption experiments were analyzed with Langmuir isotherm and indicated an increase of adsorption capacity with pH decrease. This effect is attributed to the increase of -NH3+ groups of the chitosan in acid medium, producing a strong interaction between the cationic group from the chitosan and -SO3- group of the dye. Values for qm were 1613 mg/g (pH 2.0) and 310 mg/g (pH 10.0).
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spelling Evaluation of the adsorption capacity of orange 16 reactive dye for chitosanAvaliação da capacidade de adsorção do corante reativo laranja 16 pela quitosanaadsorçãocorante reativo e quitosana1.06.00.00-0 QuímicaChitosan (87.2% NH2) was employed as adsorbent for the orange 16 reactive dye in an aqueous medium. The dye is used in textile dyeing. Isotherms of adsorption were determined according to variations of pH and the initial concentration of the dye. Results of adsorption experiments were analyzed with Langmuir isotherm and indicated an increase of adsorption capacity with pH decrease. This effect is attributed to the increase of -NH3+ groups of the chitosan in acid medium, producing a strong interaction between the cationic group from the chitosan and -SO3- group of the dye. Values for qm were 1613 mg/g (pH 2.0) and 310 mg/g (pH 10.0).Quitosana (87,2% NH2) foi empregada como adsorvente do corante reativo laranja 16 em meio aquoso. Este corante é usado no tingimento de produtos têxteis. As isotermas de adsorção foram determinadas variando o pH e a concentração inicial do corante. Os experimentos de adsorção foram analisados empregando a isoterma de Langmuir e os resultados indicaram um aumento da capacidade de adsorção com a diminuição do pH. Este efeito é atribuído ao aumento dos grupos –NH3+ da quitosana em meio ácido, resultando numa maior interação por ligação iônica com o grupo -SO3- do corante. Os valores de qm foram 1613 mg/g (pH 2,0) e 310 mg/g (pH 10,0).Universidade Estadual De Maringá2008-05-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/300310.4025/actascitechnol.v22i0.3003Acta Scientiarum. Technology; Vol 22 (2000); 1161-1166Acta Scientiarum. Technology; v. 22 (2000); 1161-11661806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3003/2203Kimura, Irene YukikoFávere, Valfredo Tadeu deLaranjeira, Mauro César MarghettiJosué, AtcheNascimento, Amauri doinfo:eu-repo/semantics/openAccess2024-05-17T13:02:52Zoai:periodicos.uem.br/ojs:article/3003Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:02:52Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Evaluation of the adsorption capacity of orange 16 reactive dye for chitosan
Avaliação da capacidade de adsorção do corante reativo laranja 16 pela quitosana
title Evaluation of the adsorption capacity of orange 16 reactive dye for chitosan
spellingShingle Evaluation of the adsorption capacity of orange 16 reactive dye for chitosan
Kimura, Irene Yukiko
adsorção
corante reativo e quitosana
1.06.00.00-0 Química
title_short Evaluation of the adsorption capacity of orange 16 reactive dye for chitosan
title_full Evaluation of the adsorption capacity of orange 16 reactive dye for chitosan
title_fullStr Evaluation of the adsorption capacity of orange 16 reactive dye for chitosan
title_full_unstemmed Evaluation of the adsorption capacity of orange 16 reactive dye for chitosan
title_sort Evaluation of the adsorption capacity of orange 16 reactive dye for chitosan
author Kimura, Irene Yukiko
author_facet Kimura, Irene Yukiko
Fávere, Valfredo Tadeu de
Laranjeira, Mauro César Marghetti
Josué, Atche
Nascimento, Amauri do
author_role author
author2 Fávere, Valfredo Tadeu de
Laranjeira, Mauro César Marghetti
Josué, Atche
Nascimento, Amauri do
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Kimura, Irene Yukiko
Fávere, Valfredo Tadeu de
Laranjeira, Mauro César Marghetti
Josué, Atche
Nascimento, Amauri do
dc.subject.por.fl_str_mv adsorção
corante reativo e quitosana
1.06.00.00-0 Química
topic adsorção
corante reativo e quitosana
1.06.00.00-0 Química
description Chitosan (87.2% NH2) was employed as adsorbent for the orange 16 reactive dye in an aqueous medium. The dye is used in textile dyeing. Isotherms of adsorption were determined according to variations of pH and the initial concentration of the dye. Results of adsorption experiments were analyzed with Langmuir isotherm and indicated an increase of adsorption capacity with pH decrease. This effect is attributed to the increase of -NH3+ groups of the chitosan in acid medium, producing a strong interaction between the cationic group from the chitosan and -SO3- group of the dye. Values for qm were 1613 mg/g (pH 2.0) and 310 mg/g (pH 10.0).
publishDate 2008
dc.date.none.fl_str_mv 2008-05-13
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3003
10.4025/actascitechnol.v22i0.3003
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3003
identifier_str_mv 10.4025/actascitechnol.v22i0.3003
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3003/2203
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Technology; Vol 22 (2000); 1161-1166
Acta Scientiarum. Technology; v. 22 (2000); 1161-1166
1806-2563
1807-8664
reponame:Acta scientiarum. Technology (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta scientiarum. Technology (Online)
collection Acta scientiarum. Technology (Online)
repository.name.fl_str_mv Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actatech@uem.br
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