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dc.creatorStojadinovic, S
dc.creatorVasilic, Rastko
dc.creatorRadić, Nenad
dc.creatorGrbić, Boško
dc.date.accessioned2019-01-30T17:47:16Z
dc.date.available2019-01-30T17:47:16Z
dc.date.issued2015
dc.identifier.issn0925-3467
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1802
dc.description.abstractIn this paper, we have investigated photoluminescence and photocatalytic properties of zirconia films formed by plasma electrolytic oxidation (PEO) of zirconium foil in 0.1 M water solution of citric acid. Zirconia films with diverse morphology and phase structure are formed varying the time of PEO process. Characterization by atomic force microscopy and X-ray diffraction shows that obtained zirconia films mostly consist of monoclinic ZrO2 phase, while corresponding roughness and crystallite size increases with PEO time. Diffuse reflectance spectroscopy has shown that zirconia films have a broad absorption band in the range from 200 nm to 330 nm, indicating that zirconia films could be used as a photocatalyst using ultraviolet radiation. Strong photoluminescence bands are present in spectra featuring four distinct peaks in the 300-600 nm range. The peaks are centered at about 418 nm, 440 nm, 464 nm, and 495 nm. Apparent increase of photoluminescence intensity with PEO time is related to an increase of oxygen vacancy defects in zirconia films formed during the process. Also, higher concentration of oxygen vacancy defects in zirconia films result in higher photocatalytic activity.en
dc.publisherElsevier Science Bv, Amsterdam
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/171035/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172022/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172026/RS//
dc.rightsrestrictedAccess
dc.sourceOptical Materials
dc.subjectZirconia filmsen
dc.subjectPlasma electrolytic oxidationen
dc.subjectPhotoluminescenceen
dc.subjectPhotocatalytic activityen
dc.titleZirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic propertiesen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractГрбић, Бошко; Стојадиновиц, С; Василиц, Р; Радић, Ненад;
dc.citation.volume40
dc.citation.spage20
dc.citation.epage25
dc.citation.other40: 20-25
dc.citation.rankM21
dc.identifier.doi10.1016/j.optmat.2014.11.041
dc.identifier.rcubConv_3284
dc.identifier.scopus2-s2.0-84920677797
dc.identifier.wos000348891700004
dc.type.versionpublishedVersion


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