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Aerosol assisted chemical vapour deposition of hydroxyapatite-embedded titanium dioxide composite thin films

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dc.contributor.authorPiccirillo, C.
dc.contributor.authorDenis, C. J.
dc.contributor.authorPullar, R. C.
dc.contributor.authorBinions, R.
dc.contributor.authorParkin, I. P.
dc.contributor.authorDarr, J. A.
dc.contributor.authorCastro, P. M. L.
dc.date.accessioned2017-10-17T09:42:08Z
dc.date.available2017-10-17T09:42:08Z
dc.date.issued2017
dc.description.abstractThis work describes the first Aerosol Assisted Chemical Vapour Deposition (AACVD) synthesis of photocatalytic titanium dioxide thin films embedded with synthetic hydroxyapatite, [Ca-10(PO4)(OH)(2)], nanoparticles. The hydroxyapatite nanoparticles were prepared using a low temperature continuous hydrothermal flow synthesis method; analysis of the hydroxyapatite powder showed that it was phase pure and that the as-prepared material was made up of nano-needles. The nanoparticles were then embedded into TiO2 coatings using the AACVD technique by suspending them in a solution of the titania precursor (titanium tetra-isopropoxide). Results showed that the hydroxyapatite, although present in very low concentrations in the coatings (not detectable by XRD or Raman spectroscopy), heavily affected their morphology, depending on their concentration in the precursor solution. Tests of the photocatalytic activity of the composite films showed that the inclusion of the hydroxyapatite led to an increase in methylene blue photodegradation (up to 50% higher) and that the materials were photostable. This study shows that TiO2 coatings embedded with hydroxyapatite nanoparticles have potential as highly efficient photocatalysts.pt_PT
dc.description.versioninfo:eu-repo/semantics/acceptedVersionpt_PT
dc.identifier.citationPICCIRILLO, C.; DENIS, C.J.; PULLAR, R.C.; BINIONS, R.; PARKIN, I.P.; DARR, J.A.; CASTRO, P. M. L. - Aerosol assisted chemical vapour deposition of hydroxyapatite-embedded titanium dioxide composite thin films. Journal of Photochemistry and Photobiology A: Chemistry. ISSN 1010-6030. Vol. 332 (2017), p 45–53pt_PT
dc.identifier.doi10.1016/j.jphotochem.2016.08.010pt_PT
dc.identifier.eid84982168516
dc.identifier.issn1010-6030
dc.identifier.urihttp://hdl.handle.net/10400.14/23138
dc.identifier.wos000387837300005
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relation1432314
dc.relationENVIRONMENTALLY SUSTAINABLE CERAMICS FOR APPLICATIONS AS MULTIFUNCTIONAL PHOTOCATALYST
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectHydroxyapatitept_PT
dc.subjectTitanium dioxidept_PT
dc.subjectChemical vapour depositionpt_PT
dc.subjectPhotocatalysispt_PT
dc.titleAerosol assisted chemical vapour deposition of hydroxyapatite-embedded titanium dioxide composite thin filmspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleENVIRONMENTALLY SUSTAINABLE CERAMICS FOR APPLICATIONS AS MULTIFUNCTIONAL PHOTOCATALYST
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F50016%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FCTM%2F50011%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F86483%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F97115%2F2013/PT
oaire.citation.endPage53
oaire.citation.startPage45
oaire.citation.titleJournal of Photochemistry and Photobiology A: Chemistrypt_PT
oaire.citation.volume332
oaire.fundingStream5876
oaire.fundingStream5876
oaire.fundingStreamSFRH
oaire.fundingStreamFARH
person.familyNamePiccirillo
person.familyNamePullar
person.familyNameCastro
person.givenNameClara
person.givenNameRobert
person.givenNamePaula
person.identifier962551
person.identifier646900
person.identifier2013444
person.identifier.ciencia-id391B-75ED-6983
person.identifier.ciencia-idD51F-B2C3-B82C
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0002-6339-716X
person.identifier.orcid0000-0001-6844-4482
person.identifier.orcid0000-0001-8841-6606
person.identifier.ridN-8206-2013
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id7004621626
person.identifier.scopus-author-id7003296532
person.identifier.scopus-author-id7102781782
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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