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Light induced antibacterial activity and photocatalytic properties of Ag/Ag3PO4 -based material of marine origin

2015Journal article Restricted access
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dc.contributor.authorPiccirillo, C.
dc.contributor.authorPinto, R. A.
dc.contributor.authorTobaldi, D. M
dc.contributor.authorPullar, R. C.
dc.contributor.authorLabrincha, J. A.
dc.contributor.authorPintado, M. M. E.
dc.contributor.authorCastro, P. M. L.
dc.date.accessioned2015-05-12T14:36:00Z
dc.date.available2015-05-12T14:36:00Z
dc.date.issued2015
dc.description.abstractFish bones were converted into materials consisting of silver phosphate (Ag3PO4), beta-calcium phosphate (beta-Ca-3(PO4)(2), beta-TCP) and hydroxyapatite (Ca-10(PO4)(6)(OH)(2), HAp), as well as of metallic silver (Ag-0), with a simple treatment in solution and calcination (650 or 1000 degrees C). The antibacterial activity of the material was measured in the dark and under UV and white light irradiation; this is the first time that an Ag3PO4-based material was tested under these conditions. Results showed light-enhanced antibacterial properties toward Gram-positive and Gram-negative strains (Methicillin-resistant Staphylococcus aureus -MRSA, Escherichia coli,Pseudomonas aeruginosa), with inactivation rates of up to 99.999% under UV light, and 99% for E. coli under white light (artificial indoor lighting). The photocatalytic activity was also tested, and the degradation of methylene blue dye was observed under both UV and white light. Even if the MB degradation was to a smaller extent under white light, it was approximately twice that of the commercial photocatalyst P25. This work demonstrates the valorisation of a food industry by-product such as fish bones to form a potentially valuable material, with important applications in self sterilizing surfaces and environmental remediation.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationPICCIRILLO,C. ...[et al.] - Light induced antibacterial activity and photocatalytic properties of Ag/Ag3PO4 -based material of marine origin. Journal of Photochemistry and Photobiology A: Chemistry. ISSN 1010-6030. Vol. 296 (2015), p. 40–47por
dc.identifier.doi10.1016/j.jphotochem.2014.09.012
dc.identifier.eid84908429036
dc.identifier.issn1010-6030
dc.identifier.urihttp://hdl.handle.net/10400.14/17569
dc.identifier.wos000346891400006
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevier
dc.subjectAg3PO4por
dc.subjectPhotocatalysispor
dc.subjectAntibacterial activitypor
dc.subjectBy-products valorisationpor
dc.titleLight induced antibacterial activity and photocatalytic properties of Ag/Ag3PO4 -based material of marine originpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage47
oaire.citation.startPage40
oaire.citation.titleJournal of Photochemistry and Photobiology A: Chemistry
oaire.citation.volume296
person.familyNamePiccirillo
person.familyNameTobaldi
person.familyNamePullar
person.familyNameLabrincha
person.familyNamePintado
person.familyNameCastro
person.givenNameClara
person.givenNameDavid Maria
person.givenNameRobert
person.givenNameJoao
person.givenNameMaria Manuela
person.givenNamePaula
person.identifier962551
person.identifier646900
person.identifier456608
person.identifier2013444
person.identifier.ciencia-id391B-75ED-6983
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person.identifier.ciencia-idD819-2C2C-7A16
person.identifier.ciencia-id2F13-AAE0-3405
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0002-6339-716X
person.identifier.orcid0000-0002-0112-8570
person.identifier.orcid0000-0001-6844-4482
person.identifier.orcid0000-0003-4782-1685
person.identifier.orcid0000-0002-0760-3184
person.identifier.orcid0000-0001-8841-6606
person.identifier.ridN-8206-2013
person.identifier.ridB-3984-2010
person.identifier.ridF-5696-2013
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id7004621626
person.identifier.scopus-author-id16319626100
person.identifier.scopus-author-id7003296532
person.identifier.scopus-author-id7003372169
person.identifier.scopus-author-id7004483898
person.identifier.scopus-author-id7102781782
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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