Repository logo
 
Publication

Photodegradation of pharmaceutical persistent pollutants using hydroxyapatite-based materials

2016Journal article Restricted access
Simple item page
dc.contributor.authorBrazon, E. Marquez
dc.contributor.authorPiccirillo, C.
dc.contributor.authorMoreira, I. S.
dc.contributor.authorCastro, P. M. L.
dc.date.accessioned2017-10-12T17:31:40Z
dc.date.available2017-10-12T17:31:40Z
dc.date.issued2016
dc.description.abstractPharmaceutical persistent pollutants pose a serious threat to the environment. The aim of this study was to use, for the first time, hydroxyapatite-based biomaterials as photocatalysts to degrade micropollutants. Diclofenac and fluoxetine were selected for these initial tests. Hydroxyapatite (Ca10(PO4)(OH)2, HAp) is one of the most commonly used biomaterials/bioceramics, being a major constituent of bone. In this work sustainable HAp-based materials of marine origin, obtained from cod fish bones, were used; these photocatalysts were previously fully studied and characterised. Both singlephase HAp and HApetitania multicomponent materials (1 wt% TiO2) were employed as UV light photocatalysts, the latter showing better performance, indicated by higher degradation rates of both compounds. The HAp-titania photocatalyst showed excellent degradation of both persistent pollutants, the maximum degradation performance being 100% for fluoxetine and 92% for diclofenac, with pollutant and photocatalyst concentrations of 2 ppm and 4 g/L, respectively. Variations in features such as pollutant and photocatalyst concentrations were investigated, and results showed that generally fluoxetine was degraded more easily than diclofenac. The photocatalyst's crystallinity was not affected by the photodegradation reaction; indeed the material exhibited good photostability, as the degradation rate did not decrease when the material was reused. Tests were also performed using actual treated wastewater; the photocatalyst was still effective, even if with lower efficiency (-20% and -4% for diclofenac and fluoxetine, respectively). TOC analysis showed high but incomplete mineralisation of the pollutants (maximum 60% and 80% for DCF and FXT, respectively).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBRAZON, E. Marquez;, PICCIRILLO, C.; MOREIRA, I. S.; CASTRO, P. M. L. - Photodegradation of pharmaceutical persistent pollutants using hydroxyapatite-based materials. Journal of Environmental Management. ISSN 0301-4797. Vol. 182 (2016), p. 486-495pt_PT
dc.identifier.doi10.1016/j.jenvman.2016.08.005pt_PT
dc.identifier.eid84981541233
dc.identifier.pmid27526086
dc.identifier.urihttp://hdl.handle.net/10400.14/23062
dc.identifier.wos000383291600052
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationSFRH-BPD-86483-2012pt_PT
dc.subjectHydroxyapatitept_PT
dc.subjectPhotocatalysispt_PT
dc.subjectPersistent pollutantspt_PT
dc.subjectDiclofenacpt_PT
dc.subjectFluoxetinept_PT
dc.titlePhotodegradation of pharmaceutical persistent pollutants using hydroxyapatite-based materialspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F50016%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F87251%2F2012/PT
oaire.citation.endPage495
oaire.citation.startPage486
oaire.citation.titleJournal of Environmental Managementpt_PT
oaire.citation.volume182
oaire.fundingStream5876
oaire.fundingStreamSFRH
person.familyNamemarquez
person.familyNamePiccirillo
person.familyNameMoreira
person.familyNameCastro
person.givenNameedgar
person.givenNameClara
person.givenNameIrina Susana Sousa
person.givenNamePaula
person.identifier962551
person.identifierK-5841-2014
person.identifier2013444
person.identifier.ciencia-id391B-75ED-6983
person.identifier.ciencia-id161E-A350-7FDE
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0002-7503-1528
person.identifier.orcid0000-0002-6339-716X
person.identifier.orcid0000-0001-6516-0994
person.identifier.orcid0000-0001-8841-6606
person.identifier.ridB-3650-2015
person.identifier.ridN-8206-2013
person.identifier.ridK-5841-2014
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id36800050600
person.identifier.scopus-author-id7004621626
person.identifier.scopus-author-id36798094100
person.identifier.scopus-author-id7102781782
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
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication098a9fb6-3ba7-4476-87c7-fbc798e674db
relation.isAuthorOfPublicationf1e2efca-c7f0-4609-88d9-929aa6844adb
relation.isAuthorOfPublicationbb01f335-e184-4cb9-ae8a-70e62fdd5df3
relation.isAuthorOfPublicationf2253992-dc8d-4042-9a0f-597ebcf0a1d6
relation.isAuthorOfPublication.latestForDiscoveryf2253992-dc8d-4042-9a0f-597ebcf0a1d6
relation.isProjectOfPublication3fe5970e-de39-42f7-a29d-18521b591a09
relation.isProjectOfPublication3ae71887-d4c5-4d16-8218-bf4d15e25236
relation.isProjectOfPublication.latestForDiscovery3ae71887-d4c5-4d16-8218-bf4d15e25236

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
19810275.pdf
Size:
563.65 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
3.44 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CBQF - Contribuições em Revistas Científicas / Contribution to Journals