Composite membrane of niobium(V) oxide and cellulose acetate: Preparation and characterization

dc.creatorCampos, EA
dc.creatorGushikem, Y
dc.date1997
dc.dateSEP 1
dc.date2014-12-16T11:34:15Z
dc.date2015-11-26T17:03:41Z
dc.date2014-12-16T11:34:15Z
dc.date2015-11-26T17:03:41Z
dc.date.accessioned2018-03-28T23:51:50Z
dc.date.available2018-03-28T23:51:50Z
dc.identifierJournal Of Colloid And Interface Science. Academic Press Inc Jnl-comp Subscriptions, v. 193, n. 1, n. 121, n. 126, 1997.
dc.identifier0021-9797
dc.identifierWOS:A1997XZ25000015
dc.identifier10.1006/jcis.1997.5051
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/56369
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/56369
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/56369
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1279143
dc.descriptionComposite membranes of niobium(V) oxide and cellulose acetate (Cel/Nb2O5) were prepared with the following Nb2O5 loadings (in wt%): 1.1, 6.1, 9.8, 15.6, and 20.9. The thermal stability of the membranes slightly decreased in relation to the pure membrane on incorporation of the metal oxide into the matrix. Scanning electron microscopy and niobium mapping with an X-ray EDS microprobe showed that the metal oxide particles are homogeneously dispersed in the matrix. The electronic absorption bands indicated that the oxide particle size varies from that of the monomer to those of oligomer species on increased Nb2O5 loading in the matrix. The dispersed oxide possesses mainly Lewis acid character, a clear indication that on increasing the oxide loading in the matrix, the coordination number of the metal is not saturated by formation of the Nb-O-Nb bond. (C) 1997 Academic Press.
dc.description193
dc.description1
dc.description121
dc.description126
dc.languageen
dc.publisherAcademic Press Inc Jnl-comp Subscriptions
dc.publisherSan Diego
dc.relationJournal Of Colloid And Interface Science
dc.relationJ. Colloid Interface Sci.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectniobium oxide
dc.subjectcellulose acetate
dc.subjectniobium oxide-cellulose acetate composite membrane
dc.subjectniobium oxide dispersed in cellulose acetate
dc.subjectImmobilization
dc.subjectPyridine
dc.subjectEnzyme
dc.subjectFiber
dc.subjectAdsorption
dc.subjectAlkoxide
dc.subjectSurface
dc.subjectSilica
dc.titleComposite membrane of niobium(V) oxide and cellulose acetate: Preparation and characterization
dc.typeArtículos de revistas


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