Show simple item record

dc.creatorFinčur, Nina L.
dc.creatorKrstić, Jugoslav
dc.creatorSibul, Filip S.
dc.creatorSojic, Daniela V.
dc.creatorDespotović, Vesna N.
dc.creatorBanic, Nemanja D.
dc.creatorAgbaba, Jasmina R.
dc.creatorAbramović, Biljana F.
dc.date.accessioned2019-01-30T17:53:00Z
dc.date.available2019-01-30T17:53:00Z
dc.date.issued2017
dc.identifier.issn1385-8947
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/2077
dc.description.abstractEfficiency of heterogeneous photocatalytic degradation of aiprazolam was investigated. The structural and morphological properties of ZnO were investigated in detail. It was found that ZnO has wurtzite structure with crystallite size about 41 nm, specific surface area about 6.5 m(2)/g, and intraparticle system of pores (maximum pore width about 160 nm). The efficiency of aiprazolam photocatalytic degradation was examined as a function of the type of irradiation (UVA, visible, and simulated solar irradiation) and photocatalyst (ZnO, TiO2 Degussa P25), photocatalyst loading, pH, and the presence of hydroxyl radical, and positive hole scavengers. By examining the effect of types of irradiation and catalysts, it was found that the UVA/ZnO system is the most efficient for alprazolam removal. The optimum catalyst loading was 2.0 mg/mL for TiO2 Degussa P25, while in presence of ZnO degradation rate increases in whole investigated range. In the case of ZnO, the pH 7 was selected as an optimal condition, while in aqueous suspension of TiO2 Degussa P25, degradation rate increases in whole investigated pH range (3.4-8.8), but increasing is not as pronounced as in case of ZnO. Also, it was found that ZnO photocatalysis takes place only via hydroxyl radicals, while using TiO2 Degussa P25 positive holes play significant role, too. The results of total organic carbon and ionic chromatography analysis showed that after 60 min of irradiation using both catalysts aiprazolam was completely mineralized. Here, for the first time, reaction intermediates formed using both catalysts were studied in detail, whereby the main intermediates were hydroxyl derivates. ZnO showed high stability in photodegradation after three successive runs.en
dc.publisherElsevier Science Sa, Lausanne
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172042/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS//
dc.rightsrestrictedAccess
dc.sourceChemical Engineering Journal
dc.subjectAlprazolamen
dc.subjectAnxiolyticen
dc.subjectHeterogeneous photocatalysisen
dc.subjectNanostructureen
dc.subjectMineralizationen
dc.subjectReaction intermediatesen
dc.titleRemoval of alprazolam from aqueous solutions by heterogeneous photocatalysis: Influencing factors, intermediates, and productsen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractСибул, Филип С.; Финчур, Нина Л.; Крстић, Југослав; Сојиц, Даниела В.; Aбрамовић, Биљана Ф.; Баниц, Немања Д.; Деспотовиц, Весна Н.; Aгбаба, Јасмина Р.;
dc.citation.volume307
dc.citation.spage1105
dc.citation.epage1115
dc.citation.other307: 1105-1115
dc.citation.rankaM21
dc.identifier.doi10.1016/j.cej.2016.09.008
dc.identifier.rcubConv_3619
dc.identifier.scopus2-s2.0-84988000471
dc.identifier.wos000387298200115
dc.type.versionpublishedVersion


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record