Organofunctionalized kenyaite for dye removal from aqueous solution

dc.creatorRoyer, B
dc.creatorCardoso, NF
dc.creatorLima, EC
dc.creatorRuiz, VSO
dc.creatorMacedo, TR
dc.creatorAiroldi, C
dc.date2009
dc.dateAUG 15
dc.date2014-11-14T04:08:01Z
dc.date2015-11-26T16:04:27Z
dc.date2014-11-14T04:08:01Z
dc.date2015-11-26T16:04:27Z
dc.date.accessioned2018-03-28T22:53:33Z
dc.date.available2018-03-28T22:53:33Z
dc.identifierJournal Of Colloid And Interface Science. Academic Press Inc Elsevier Science, v. 336, n. 2, n. 398, n. 405, 2009.
dc.identifier0021-9797
dc.identifierWOS:000267671400004
dc.identifier10.1016/j.jcis.2009.04.025
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/69746
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/69746
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/69746
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1265484
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionCrystalline layered sodium kenyaite was exchanged to proton kenyaite when reacted with hydrochloric acid solution, providing a new surface with available silanol groups that are able to couple with N-3-tri-methoxysilylpropylethylenediamine silylating agent, after prior expansion of the basal distance with the polar organic solvent dimethyl sulfoxide. The resulting organofunctionalized nanomaterial (2N-Ken) was characterized by elemental analysis, infrared spectroscopy, X-ray diffraction, carbon and silicon nuclear magnetic resonances in the solid state, surface analysis, porosity, thermogravimetry, and electron scanning microscopy. The quantity of silylating agent incorporated into the nanospace, calculated from the nitrogen elemental analysis, was determined as 0.48 mmol g(-1), after expanding of the acidic precursor basal distance from 1.62 to 1.99 nm. The presence of a covalent silicon-carbon bond of the organosilyl moiety on the inorganic layered structure was confirmed through nuclear magnetic resonance. This new nanomaterial has the ability to extract the Sumifix Brilliant Orange 3R textile dye from aqueous solution, using a batchwise process. The effects of stirring time, adsorbent dosage, and pH on the adsorption capacity demonstrated that 4 h is enough to reach equilibrium at 298 +/- K under pH 4.0. Based on error function values (F(error)) the data were best fitted to fractional-order and chemisorption kinetic models when compared to pseudo-first-order and pseudo-second-order kinetic models. The equilibrium data were better fitted to the Sips isotherm model. (C) 2009 Elsevier Inc. All rights reserved.
dc.description336
dc.description2
dc.description398
dc.description405
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionMCT
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageen
dc.publisherAcademic Press Inc Elsevier Science
dc.publisherSan Diego
dc.publisherEUA
dc.relationJournal Of Colloid And Interface Science
dc.relationJ. Colloid Interface Sci.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectLayered material
dc.subjectKenyaite
dc.subjectAdsorbent
dc.subjectDye
dc.subjectSumifix Brilliant Orange 3R
dc.subjectAraucaria-angustifolia Wastes
dc.subjectMethylene-blue Biosorption
dc.subjectYellow Passion-fruit
dc.subjectStatistical Design
dc.subjectCrystal-structure
dc.subjectBatch Conditions
dc.subjectUnburned Carbon
dc.subjectPecan Nutshell
dc.subjectBiosorbent
dc.subjectMagadiite
dc.titleOrganofunctionalized kenyaite for dye removal from aqueous solution
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución