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Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity

2018Journal article Open access
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dc.contributor.authorMurgolo, Sapia
dc.contributor.authorMoreira, Irina S.
dc.contributor.authorPiccirillo, Clara
dc.contributor.authorCastro, Paula M. L.
dc.contributor.authorVentrella, Gianrocco
dc.contributor.authorCocozza, Claudio
dc.contributor.authorMascolo, Giuseppe
dc.date.accessioned2018-10-22T11:43:09Z
dc.date.available2018-10-22T11:43:09Z
dc.date.issued2018
dc.description.abstractDiclofenac (DCF) is one of the most detected pharmaceuticals in environmental water matrices and is known to be recalcitrant to conventional wastewater treatment plants. In this study, degradation of DCF was performed in water by photolysis and photocatalysis using a new synthetized photocatalyst based on hydroxyapatite and TiO2 (HApTi). A degradation of 95% of the target compound was achieved in 24 h by a photocatalytic treatment employing the HApTi catalyst in comparison to only 60% removal by the photolytic process. The investigation of photo-transformation products was performed by means of UPLC-QTOF/MS/MS, and for 14 detected compounds in samples collected during treatment with HApTi, the chemical structure was proposed. The determination of transformation product (TP) toxicity was performed by using different assays: Daphnia magna acute toxicity test, Toxi-ChromoTest, and Lactuca sativa and Solanum lycopersicum germination inhibition test. Overall, the toxicity of the samples obtained from the photocatalytic experiment with HApTi decreased at the end of the treatment, showing the potential applicability of the catalyst for the removal of diclofenac and the detoxification of water matrices.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMurgolo, S., Moreira, I.S., Piccirillo, C., Castro, P.M.L., Ventrella, G., Cocozza, C., Mascolo, G. (2018). Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity. Materials, 11(9), art. n.º 1779pt_PT
dc.identifier.doi10.3390/ma11091779pt_PT
dc.identifier.eid85053634407
dc.identifier.issn1996-1944
dc.identifier.pmcPMC6164299
dc.identifier.pmid30235831
dc.identifier.urihttp://hdl.handle.net/10400.14/25804
dc.identifier.wos000446395200295
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectDiclofenacpt_PT
dc.subjectHydroxyapatitept_PT
dc.subjectPhotocatalysispt_PT
dc.subjectTransformation productspt_PT
dc.subjectToxicitypt_PT
dc.titlePhotocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicitypt_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.issue9pt_PT
oaire.citation.titleMaterialspt_PT
oaire.citation.volume11pt_PT
oaire.fundingStream5876
oaire.fundingStreamSFRH
person.familyNameMoreira
person.familyNamePiccirillo
person.familyNameCastro
person.familyNameCocozza
person.familyNameMascolo
person.givenNameIrina Susana Sousa
person.givenNameClara
person.givenNamePaula
person.givenNameClaudio
person.givenNameGiuseppe
person.identifierK-5841-2014
person.identifier962551
person.identifier2013444
person.identifier93336
person.identifier.ciencia-id161E-A350-7FDE
person.identifier.ciencia-id391B-75ED-6983
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0001-6516-0994
person.identifier.orcid0000-0002-6339-716X
person.identifier.orcid0000-0001-8841-6606
person.identifier.orcid0000-0003-2246-5688
person.identifier.orcid0000-0002-7858-2114
person.identifier.ridK-5841-2014
person.identifier.ridN-8206-2013
person.identifier.ridM-8241-2013
person.identifier.ridK-3240-2012
person.identifier.scopus-author-id36798094100
person.identifier.scopus-author-id7004621626
person.identifier.scopus-author-id7102781782
person.identifier.scopus-author-id6506865839
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.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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