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TiO2/PDMS nanocomposites for use on self-cleaning surfaces

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dc.contributor.authorTavares, M. T. S.
dc.contributor.authorSantos, A. S. F.
dc.contributor.authorSantos, I. M. G.
dc.contributor.authorSilva, M. R. S.
dc.contributor.authorBomio, M. R. D.
dc.contributor.authorLongo, E. [UNESP]
dc.contributor.authorPaskocimas, C. A.
dc.contributor.authorMotta, F. V.
dc.contributor.institutionUniversidade Federal do Rio Grande do Norte (UFRN)
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-12-03T13:08:37Z
dc.date.available2014-12-03T13:08:37Z
dc.date.issued2014-01-25
dc.description.abstractIn this study, polydimethylsiloxane (PDMS)/TiO2 nanocomposite was processed by the spray method. TiO2 nanoparticles were synthesized by microwave-assisted hydrothermal method. Varying the proportion of nanoparticles in 0%, 0.5% and 1% by weight, commercial TiO2 (P25) was used for comparison purposes. The photocatalytic activity of nanocomposites impregnated with methylene blue was assessed by means of UV-visible spectroscopy. Changes in contact angle were analyzed before and after UV degradation tests. The effect of ultraviolet radiation on the chemical structure of the PDMS matrix was evaluated by Fourier transform infrared spectroscopy (FTIR). The results indicated that the addition of TiO2 nanoparticles in PDMS provides good photocatalytic properties in the decomposition of methylene blue, which is an important characteristic for the development of coatings for self-cleaning. For comparison purposes, commercial P25 was also used to investigate the photocatalytic activity. (C) 2013 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Fed Rio Grande do Norte, Dept Mat Engn, BR-59078900 Natal, RN, Brazil
dc.description.affiliationUniv Fed Paraiba, Dept Mat Engn, BR-58051900 Joao Pessoa, Paraiba, Brazil
dc.description.affiliationUniv Fed Paraiba, Dept Chem, BR-58051900 Joao Pessoa, Paraiba, Brazil
dc.description.affiliationSao Paulo State Univ, Interdisciplinary Lab Electrochem & Ceram, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Interdisciplinary Lab Electrochem & Ceram, BR-14801907 Araraquara, SP, Brazil
dc.description.sponsorshipRECAM (Rede de Catalisadores Ambientais)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCNPq: 564913/2010-3
dc.format.extent16-19
dc.identifierhttp://dx.doi.org/10.1016/j.surfcoat.2013.11.009
dc.identifier.citationSurface & Coatings Technology. Lausanne: Elsevier Science Sa, v. 239, p. 16-19, 2014.
dc.identifier.doi10.1016/j.surfcoat.2013.11.009
dc.identifier.issn0257-8972
dc.identifier.urihttp://hdl.handle.net/11449/111401
dc.identifier.wosWOS:000331495100003
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofSurface & Coatings Technology
dc.relation.ispartofjcr2.906
dc.relation.ispartofsjr0,928
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectMicrowaveen
dc.subjectNanoparticlesen
dc.subjectTiO2en
dc.subjectNanocompositesen
dc.subjectPhotocatalytic activityen
dc.titleTiO2/PDMS nanocomposites for use on self-cleaning surfacesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentBioquímica e Tecnologia - IQpt

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Araraquara - IQAR - Instituto de Química