Adsorção de íons cobre(II) pela quitosana usando coluna em sistema sob fluxo hidrodinâmico Adsorption of copper(II) on chitosan using a column in a closed hydrodynamic flow system

<abstract language="eng">The adsorption of Cu(II) ions from aqueous solution by chitosan using a column in a closed hydrodynamic flow system is described. The adsorption capacities as a function of contact time of copper(II) ions and chitosan were determined by varying the ionic stre...

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Main Authors:	Luciana Simionatto Guinesi, Amanda Alves Esteves, Éder Tadeu Gomes Cavalheiro
Format:	Article
Language:	English
Published:	Sociedade Brasileira de Química 2007-08-01
Series:	Química Nova
Subjects:	chitosan copper adsorption
Online Access:	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000400010

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spelling	doaj-ef914dbdc4f14df8ba6412b7083eae392020-11-24T21:31:57ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642007-08-0130480981410.1590/S0100-40422007000400010Adsorção de íons cobre(II) pela quitosana usando coluna em sistema sob fluxo hidrodinâmico Adsorption of copper(II) on chitosan using a column in a closed hydrodynamic flow systemLuciana Simionatto GuinesiAmanda Alves EstevesÉder Tadeu Gomes Cavalheiro<abstract language="eng">The adsorption of Cu(II) ions from aqueous solution by chitosan using a column in a closed hydrodynamic flow system is described. The adsorption capacities as a function of contact time of copper(II) ions and chitosan were determined by varying the ionic strength, temperature and the flow of the metal solution. The Langmuir model reproduced the adsorption isothermal data better than the Freundlich model. The experimental kinetic data correlate properly with the second-order kinetic reaction for the whole set of experimental adsorption conditions. The rate constants exercise great influence on the time taken for equilibrium to be established by complexation or electrostatic interaction between the amino groups of chitosan and the metal.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000400010chitosancopperadsorption
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Luciana Simionatto Guinesi Amanda Alves Esteves Éder Tadeu Gomes Cavalheiro
spellingShingle	Luciana Simionatto Guinesi Amanda Alves Esteves Éder Tadeu Gomes Cavalheiro Adsorção de íons cobre(II) pela quitosana usando coluna em sistema sob fluxo hidrodinâmico Adsorption of copper(II) on chitosan using a column in a closed hydrodynamic flow system Química Nova chitosan copper adsorption
author_facet	Luciana Simionatto Guinesi Amanda Alves Esteves Éder Tadeu Gomes Cavalheiro
author_sort	Luciana Simionatto Guinesi
title	Adsorção de íons cobre(II) pela quitosana usando coluna em sistema sob fluxo hidrodinâmico Adsorption of copper(II) on chitosan using a column in a closed hydrodynamic flow system
title_short	Adsorção de íons cobre(II) pela quitosana usando coluna em sistema sob fluxo hidrodinâmico Adsorption of copper(II) on chitosan using a column in a closed hydrodynamic flow system
title_full	Adsorção de íons cobre(II) pela quitosana usando coluna em sistema sob fluxo hidrodinâmico Adsorption of copper(II) on chitosan using a column in a closed hydrodynamic flow system
title_fullStr	Adsorção de íons cobre(II) pela quitosana usando coluna em sistema sob fluxo hidrodinâmico Adsorption of copper(II) on chitosan using a column in a closed hydrodynamic flow system
title_full_unstemmed	Adsorção de íons cobre(II) pela quitosana usando coluna em sistema sob fluxo hidrodinâmico Adsorption of copper(II) on chitosan using a column in a closed hydrodynamic flow system
title_sort	adsorção de íons cobre(ii) pela quitosana usando coluna em sistema sob fluxo hidrodinâmico adsorption of copper(ii) on chitosan using a column in a closed hydrodynamic flow system
publisher	Sociedade Brasileira de Química
series	Química Nova
issn	0100-4042 1678-7064
publishDate	2007-08-01
description	<abstract language="eng">The adsorption of Cu(II) ions from aqueous solution by chitosan using a column in a closed hydrodynamic flow system is described. The adsorption capacities as a function of contact time of copper(II) ions and chitosan were determined by varying the ionic strength, temperature and the flow of the metal solution. The Langmuir model reproduced the adsorption isothermal data better than the Freundlich model. The experimental kinetic data correlate properly with the second-order kinetic reaction for the whole set of experimental adsorption conditions. The rate constants exercise great influence on the time taken for equilibrium to be established by complexation or electrostatic interaction between the amino groups of chitosan and the metal.
topic	chitosan copper adsorption
url	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000400010
work_keys_str_mv	AT lucianasimionattoguinesi adsorcaodeionscobreiipelaquitosanausandocolunaemsistemasobfluxohidrodinamicoadsorptionofcopperiionchitosanusingacolumninaclosedhydrodynamicflowsystem AT amandaalvesesteves adsorcaodeionscobreiipelaquitosanausandocolunaemsistemasobfluxohidrodinamicoadsorptionofcopperiionchitosanusingacolumninaclosedhydrodynamicflowsystem AT edertadeugomescavalheiro adsorcaodeionscobreiipelaquitosanausandocolunaemsistemasobfluxohidrodinamicoadsorptionofcopperiionchitosanusingacolumninaclosedhydrodynamicflowsystem
_version_	1725959192254087168

Adsorção de íons cobre(II) pela quitosana usando coluna em sistema sob fluxo hidrodinâmico Adsorption of copper(II) on chitosan using a column in a closed hydrodynamic flow system

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