New promising composite materials useful in the adsorption of Cu(II) in ethanol based on cellulose and cellulose acetate

dc.creatorMagosso, HA
dc.creatorFattori, N
dc.creatorArenas, LT
dc.creatorGushikem, Y
dc.date2012
dc.dateJUN
dc.date2014-07-31T15:02:07Z
dc.date2015-11-26T16:47:06Z
dc.date2014-07-31T15:02:07Z
dc.date2015-11-26T16:47:06Z
dc.date.accessioned2018-03-28T23:33:07Z
dc.date.available2018-03-28T23:33:07Z
dc.identifierCellulose. Springer, v. 19, n. 3, n. 913, n. 923, 2012.
dc.identifier0969-0239
dc.identifierWOS:000303459200031
dc.identifier10.1007/s10570-012-9657-9
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/75827
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/75827
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1274741
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThis work describes for the first time the synthesis and characterization of new promising materials based on cellulose (Cel) and cellulose acetate (Celac), previously modified with aluminum oxide (CelAl and CelacAl) and post functionalized with 1,4-diazabicyclo [2.2.2] octane-n-propyltrimethoxysilane chloride (SiDbCl(2)), resulting the chemically modified hybrid materials CelAl/SiDbCl(2) and CelacAl/SiDbCl(2). The materials have shown to be useful in the adsorption of CuCl2 from ethanol, presenting high effective adsorption capacity. In the adsorption process, the copper ions diffuse into the solid solution interface and are retained as anionic complexes CuCl (3) (-) or CuCl (4) (2-) . An expressive effective adsorption capacity t(Q), as well as the stability constants beta(1) and beta(2), were found for both adsorbents: (a) CelAl/DbCl(2): t(Q) = 0.33 x 10(-3) mol g(-1), log beta(1) = 4.23 (+/- 0.04) and log beta(2) = 6.99 (+/- 0.03); (b) CelacAl/DbCl(2): t(Q) = 0.48 x 10(-3) mol g(-1), log beta(1) = 5.1 (+/- 0.1) and log beta(2) = 8.3 (+/- 0.1). Both adsorbent materials are potentially useful in the pre-concentration and further analysis of Cu(II) present in trace amounts in ethanol, extensively used as an automotive fuel in Brazil. Regeneration of the adsorbents requires a very simple procedure consisting in their immersion in aqueous solution which causes the immediate release of the Cu(OH2) (n) (2+) species to the solution phase.
dc.description19
dc.description3
dc.description913
dc.description923
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherSpringer
dc.publisherDordrecht
dc.publisherHolanda
dc.relationCellulose
dc.relationCellulose
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectCellulose
dc.subjectCellulose acetate
dc.subjectAnionic copper complexes
dc.subjectStability constants
dc.subjectSilica-gel Surface
dc.subjectPlatinum-electrode
dc.subjectZirconium Dioxide
dc.subjectAlpha-cellulose
dc.subjectOxide
dc.subjectSilsesquioxane
dc.subjectChloride
dc.subjectFibers
dc.subjectIon
dc.subjectRemoval
dc.titleNew promising composite materials useful in the adsorption of Cu(II) in ethanol based on cellulose and cellulose acetate
dc.typeArtículos de revistas


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