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dc.creatorDostanić, Jasmina
dc.creatorGrbić, Boško
dc.creatorRadić, Nenad
dc.creatorStefanov, Plamen
dc.creatorŠaponjić, Zoran
dc.creatorBuha, Jelena
dc.creatorMijin, Dušan
dc.date.accessioned2019-01-30T17:30:15Z
dc.date.available2019-01-30T17:30:15Z
dc.date.issued2012
dc.identifier.issn1385-8947
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/997
dc.description.abstractIn this study, the feasibility of preparing porous TiO2 films on a stainless steel substrate from a hydrothermally prepared colloidal TiO2 solution by the spray pyrolysis technique is presented. The prepared samples were annealed at different temperatures and characterized by the XPS, XRD and SEM techniques, porosimetry and specific surface area measurements. The photocatalytic activities of the resulting films were evaluated by measuring the degradation of an azo pyridone dye, used as model pollutant, under simulated sunlight conditions. The relationships between the structural and morphological characteristics of the TiO2 films and their photoactivity were observed. It was found that the photoactivity was markedly dependent on the annealing temperature. On increasing the calcination temperature from 500 degrees C to 700 degrees C, the crystallite size and the rutile content increased, whereas the specific surface area and the rate of photodegradation decreased. Calcination at 700 degrees C resulted in a completely loss of photoactivity, due to the partial transformation of anatase to rutile phase, the increased crystallite size and decreased specific surface area. Specific activity (per unit of mass and per unit of surface area) was lowered within thicker films, pointing out significance of transport phenomena through porous films (the transport of dye and the transmittance of light as immaterial reagent). Based on the obtained results, the spray pyrolysis method appears to be a good choice for the preparation of photocatalytically active TiO2 films for the removal of dye pollutants.en
dc.publisherElsevier Science Sa, Lausanne
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.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS//
dc.rightsrestrictedAccess
dc.sourceChemical Engineering Journal
dc.subjectTiO2 filmsen
dc.subjectStainless steelen
dc.subjectSpray pyrolysisen
dc.subjectPhotocatalysisen
dc.subjectAzo pyridone dyeen
dc.titlePhotodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis methoden
dc.typearticle
dc.rights.licenseARR
dcterms.abstractСапоњиц, Зоран; Радић, Ненад; Мијин, Дусан; Буха, Јелена; Стефанов, Пламен; Грбић, Бошко; Достанић, Јасмина;
dc.citation.volume180
dc.citation.spage57
dc.citation.epage65
dc.citation.other180: 57-65
dc.citation.rankaM21
dc.identifier.doi10.1016/j.cej.2011.10.100
dc.identifier.rcubConv_2740
dc.identifier.scopus2-s2.0-84455208127
dc.identifier.wos000300475900008
dc.type.versionpublishedVersion


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