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Calcium hydroxyapatite-based photocatalysts for environment remediation: characteristics, performances and future perspectives

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dc.contributor.authorPiccirillo, C.
dc.contributor.authorCastro, P. M. L.
dc.date.accessioned2017-12-15T17:10:18Z
dc.date.available2017-12-15T17:10:18Z
dc.date.issued2017
dc.description.abstractCalcium hydroxyapatite Ca10(PO4)6(OH)2 (HAp) is a material widely used in biomedicine, for bone implants manufacture, due to its biocompatibility. HAp has also application for environmental remediation, as it can be employed as metal removal; moreover, it has the capability of effectively adsorbing organic molecules its surface. In recent years, the photocatalytic properties of HAp have been investigated; indeed several studies report of HAp used as photocatalyst, either on its own or combined with other photocatalytic materials. Although in the majority of cases the activity was induced by UV light, some reports of visible light-activated materials were reported. Here we present a critical review of the latest developments for HAp-based photocatalysts; the materials discussed are undoped single phase HAp, doped HAp and HAp-containing composites. For undoped single phase HAp, the possible surface treatment and lattice defects which can lead to a photoactive material are discussed. Considering doped HAp, the use of Ti4+ (the most common dopant) is described, with particular attention to the effects that this metal have on the characteristics of the material (i.e. crystallinity) and on its photocatalytic behaviour. The use of other dopants is also discussed. For the multiphasic materials, the combination of HAp with other photocatalysts is discussed, mainly but not only with titanium dioxide TiO2. Overall, HAp is a compound with high potential as photocatalyst; this property, combined with its capability for heavy metal removal, makes it a multifunctional material for environmental remediation. As future perspectives, further studies, based on the results obtained until present, should be performed, to improve the performance of the materials and/or shift the band gap into the visible. The use of other dopants and/or the combination with other photocatalysts, for instance, are features which is worth exploring.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPiccirillo, C., & Castro, P. M. L. (2017). Calcium hydroxyapatite-based photocatalysts for environment remediation: Characteristics, performances and future perspectives. Journal of Environmental Management, 193, 79-91pt_PT
dc.identifier.doi10.1016/j.jenvman.2017.01.071pt_PT
dc.identifier.eid85012104115
dc.identifier.eissn1095-8630
dc.identifier.issn0301-4797
dc.identifier.pmid28189932
dc.identifier.urihttp://hdl.handle.net/10400.14/23681
dc.identifier.wos000397687100009
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectHydroxyapatitept_PT
dc.subjectPhotocatalysispt_PT
dc.subjectEnvironment remediationpt_PT
dc.subjectPollutants' degradationpt_PT
dc.titleCalcium hydroxyapatite-based photocatalysts for environment remediation: characteristics, performances and future perspectivespt_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%2F86483%2F2012/PT
oaire.citation.endPage91pt_PT
oaire.citation.startPage79pt_PT
oaire.citation.titleJournal of Environmental Managementpt_PT
oaire.citation.volume193pt_PT
oaire.fundingStream5876
oaire.fundingStreamSFRH
person.familyNamePiccirillo
person.familyNameCastro
person.givenNameClara
person.givenNamePaula
person.identifier962551
person.identifier2013444
person.identifier.ciencia-id391B-75ED-6983
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0002-6339-716X
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-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
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relation.isAuthorOfPublicationf2253992-dc8d-4042-9a0f-597ebcf0a1d6
relation.isAuthorOfPublication.latestForDiscoveryf1e2efca-c7f0-4609-88d9-929aa6844adb
relation.isProjectOfPublication3fe5970e-de39-42f7-a29d-18521b591a09
relation.isProjectOfPublicatione7687fe0-36a9-4ddf-8c0d-45db4b56d927
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