Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua

Detalhes bibliográficos
Autor(a) principal: Cestari, Antônio Reinaldo
Data de Publicação: 2010
Outros Autores: Silva, Rivaldo Cardoso, Andrade Júnior, Marcos Antonio S.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFS
Texto Completo: https://ri.ufs.br/handle/riufs/1425
Resumo: The synthesis and characterization of crosslinked chitosan microbeads and their application in the removal of Cr(VI) are described. New kinetic and thermodynamic parameters of Cr(VI) adsorptions processes were found using continuous isothermal calorimetry. All adsorption processes are exothermic in nature. However, a multivariate statistical analysis have pointed out that adsorption enthalpies were affected by important binary interactions of the initial Cr(VI) in solution and temperature. The adsorption energetic data were well fitted to a kinetic exponential model, which have indicated fractionary adsorption kinetic orders.
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spelling Cestari, Antônio ReinaldoSilva, Rivaldo CardosoAndrade Júnior, Marcos Antonio S.2015-01-30T19:32:52Z2015-01-30T19:32:52Z2010SILVA, R. C.; ANDRADE JÚNIOR, M. A. S.; CESTARI, A. R. Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua. Química Nova, São Paulo, v. 33, n. 4, 2010. Disponível em: <http://dx.doi.org/10.1590/S0100-40422010000400022>. Acesso em: 30 jan. 2015.0100-4042https://ri.ufs.br/handle/riufs/1425Creative Commons Attribution LicenseThe synthesis and characterization of crosslinked chitosan microbeads and their application in the removal of Cr(VI) are described. New kinetic and thermodynamic parameters of Cr(VI) adsorptions processes were found using continuous isothermal calorimetry. All adsorption processes are exothermic in nature. However, a multivariate statistical analysis have pointed out that adsorption enthalpies were affected by important binary interactions of the initial Cr(VI) in solution and temperature. The adsorption energetic data were well fitted to a kinetic exponential model, which have indicated fractionary adsorption kinetic orders.SBQQuitosanaAdsorçãoMicrocalorimetriaCinéticaTermodinâmicaAdsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínuaAdsorption of Cr(VI) onto crosslinked chitosan microbeads - new kinetic and thermodynamic correlations using continuous isothermal microcalorimetryinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleporreponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSinfo:eu-repo/semantics/openAccessTHUMBNAILAdsorcaoCr(VI).pdf.jpgAdsorcaoCr(VI).pdf.jpgGenerated Thumbnailimage/jpeg1642https://ri.ufs.br/jspui/bitstream/riufs/1425/4/AdsorcaoCr%28VI%29.pdf.jpg87d53911d03276183722b620d588c2a2MD54ORIGINALAdsorcaoCr(VI).pdfAdsorcaoCr(VI).pdfapplication/pdf233032https://ri.ufs.br/jspui/bitstream/riufs/1425/1/AdsorcaoCr%28VI%29.pdfc6a79f2d44b29bd8aa79c8ad5f0dbf96MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://ri.ufs.br/jspui/bitstream/riufs/1425/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52TEXTAdsorcaoCr(VI).pdf.txtAdsorcaoCr(VI).pdf.txtExtracted texttext/plain23601https://ri.ufs.br/jspui/bitstream/riufs/1425/3/AdsorcaoCr%28VI%29.pdf.txtdc9028368da58a529d5d573a69091d3cMD53riufs/14252015-02-05 14:57:11.834oai:ufs.br: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Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2015-02-05T17:57:11Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false
dc.title.pt_BR.fl_str_mv Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua
dc.title.alternative.pt_BR.fl_str_mv Adsorption of Cr(VI) onto crosslinked chitosan microbeads - new kinetic and thermodynamic correlations using continuous isothermal microcalorimetry
title Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua
spellingShingle Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua
Cestari, Antônio Reinaldo
Quitosana
Adsorção
Microcalorimetria
Cinética
Termodinâmica
title_short Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua
title_full Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua
title_fullStr Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua
title_full_unstemmed Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua
title_sort Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua
author Cestari, Antônio Reinaldo
author_facet Cestari, Antônio Reinaldo
Silva, Rivaldo Cardoso
Andrade Júnior, Marcos Antonio S.
author_role author
author2 Silva, Rivaldo Cardoso
Andrade Júnior, Marcos Antonio S.
author2_role author
author
dc.contributor.author.fl_str_mv Cestari, Antônio Reinaldo
Silva, Rivaldo Cardoso
Andrade Júnior, Marcos Antonio S.
dc.subject.por.fl_str_mv Quitosana
Adsorção
Microcalorimetria
Cinética
Termodinâmica
topic Quitosana
Adsorção
Microcalorimetria
Cinética
Termodinâmica
description The synthesis and characterization of crosslinked chitosan microbeads and their application in the removal of Cr(VI) are described. New kinetic and thermodynamic parameters of Cr(VI) adsorptions processes were found using continuous isothermal calorimetry. All adsorption processes are exothermic in nature. However, a multivariate statistical analysis have pointed out that adsorption enthalpies were affected by important binary interactions of the initial Cr(VI) in solution and temperature. The adsorption energetic data were well fitted to a kinetic exponential model, which have indicated fractionary adsorption kinetic orders.
publishDate 2010
dc.date.issued.fl_str_mv 2010
dc.date.accessioned.fl_str_mv 2015-01-30T19:32:52Z
dc.date.available.fl_str_mv 2015-01-30T19:32:52Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.citation.fl_str_mv SILVA, R. C.; ANDRADE JÚNIOR, M. A. S.; CESTARI, A. R. Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua. Química Nova, São Paulo, v. 33, n. 4, 2010. Disponível em: <http://dx.doi.org/10.1590/S0100-40422010000400022>. Acesso em: 30 jan. 2015.
dc.identifier.uri.fl_str_mv https://ri.ufs.br/handle/riufs/1425
dc.identifier.issn.none.fl_str_mv 0100-4042
dc.identifier.license.pt_BR.fl_str_mv Creative Commons Attribution License
identifier_str_mv SILVA, R. C.; ANDRADE JÚNIOR, M. A. S.; CESTARI, A. R. Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua. Química Nova, São Paulo, v. 33, n. 4, 2010. Disponível em: <http://dx.doi.org/10.1590/S0100-40422010000400022>. Acesso em: 30 jan. 2015.
0100-4042
Creative Commons Attribution License
url https://ri.ufs.br/handle/riufs/1425
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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instname:Universidade Federal de Sergipe (UFS)
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reponame_str Repositório Institucional da UFS
collection Repositório Institucional da UFS
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