Please use this identifier to cite or link to this item: http://ri.ufs.br/jspui/handle/riufs/1425
Document Type: Artigo
Title: Adsorção de Cr(VI) em esferas reticuladas de quitosana - novas correlações cinéticas e termodinâmicas utilizando microcalorimetria isotérmica contínua
Other Titles: Adsorption of Cr(VI) onto crosslinked chitosan microbeads - new kinetic and thermodynamic correlations using continuous isothermal microcalorimetry
Authors: Cestari, Antônio Reinaldo
Silva, Rivaldo Cardoso
Andrade Júnior, Marcos Antonio S.
Issue Date: 2010
Abstract: 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.
Keywords: Quitosana
Adsorção
Microcalorimetria
Cinética
Termodinâmica
ISSN: 0100-4042
Publisher / Institution : SBQ
Citation: 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.
License: Creative Commons Attribution License
URI: https://ri.ufs.br/handle/riufs/1425
Appears in Collections:DQI - Artigos publicados em periódicos

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