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dc.contributor.authorPereira, P. H. F.-
dc.contributor.authorVoorwald, H. J. C.-
dc.contributor.authorCioffi, M. O. H.-
dc.contributor.authorDa Silva, M. L. C. P.-
dc.contributor.authorRego, A. M. B.-
dc.contributor.authorFerraria, A. M.-
dc.contributor.authorDe Pinho, Maria Norberta-
dc.date.accessioned2014-12-03T13:11:49Z-
dc.date.accessioned2016-10-25T20:15:15Z-
dc.date.available2014-12-03T13:11:49Z-
dc.date.available2016-10-25T20:15:15Z-
dc.date.issued2014-02-01-
dc.identifierhttp://dx.doi.org/10.1007/s10570-013-0113-2-
dc.identifier.citationCellulose. Dordrecht: Springer, v. 21, n. 1, p. 641-652, 2014.-
dc.identifier.issn0969-0239-
dc.identifier.urihttp://hdl.handle.net/11449/113592-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/113592-
dc.description.abstractCellulose fibres obtained from sugarcane bagasse were submitted to a purification process, which consisted of an acid hydrolysis for elimination of the major part of lignin and hemicellulose. This was followed by a delignification process carried out in two steps to yield crude cellulose (CCell) fibres in the first one and with a subsequent bleaching in order to yield bleached cellulose fibres (BCell). Composites of crude and bleached cellulose fibres with hydrous niobium phosphate, cell/NbOPO4 center dot nH(2)O, were subsequently synthesized. Scanning electron microscopy, X-ray photoelectron spectroscopy and X-ray diffraction characterization of the obtained materials showed CCell/NbOPO4 center dot nH(2)O and BCell/NbOPO4 center dot nH(2)O are real composites. The nature of the cellulose (CCell or BCell) has an important role on the composites obtained, namely on the niobium salt composition at the composite surface. The synthesis of membranes of both cellulose and mixed matrix cellulose/NbOPO4 center dot nH(2)O was only possible when the bleached cellulose was used.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
dc.description.sponsorshipFundacao para a Ciencia e a Tecnologia (FCT), Portugal-
dc.format.extent641-652-
dc.language.isoeng-
dc.publisherSpringer-
dc.sourceWeb of Science-
dc.subjectBleachingen
dc.subjectCelluloseen
dc.subjectMorphologyen
dc.subjectXPSen
dc.subjectXRDen
dc.subjectSEMen
dc.titleSugarcane bagasse cellulose fibres and their hydrous niobium phosphate composites: synthesis and characterization by XPS, XRD and SEMen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.contributor.institutionUniv Tecn Lisboa-
dc.description.affiliationDMT FEG UNESP, Fatigue & Aeronaut Mat Res Grp, BR-12516410 Guaratingueta, SP, Brazil-
dc.description.affiliationDEQUI EEL USP, Dept Chem, BR-12600000 Lorena, SP, Brazil-
dc.description.affiliationUniv Tecn Lisboa, Ctr Quim Fis Mol, Inst Sup Tecn, P-1049001 Lisbon, Portugal-
dc.description.affiliationUniv Tecn Lisboa, Inst Nanosci & Nanotechnol, Inst Sup Tecn, P-1049001 Lisbon, Portugal-
dc.description.affiliationUniv Tecn Lisboa, Dept Chem Engn, Inst Super Tecn, P-1049001 Lisbon, Portugal-
dc.description.affiliationUnespDMT FEG UNESP, Fatigue & Aeronaut Mat Res Grp, BR-12516410 Guaratingueta, SP, Brazil-
dc.identifier.doi10.1007/s10570-013-0113-2-
dc.identifier.wosWOS:000330807000051-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofCellulose-
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