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Photocatalytic reactor, CVD technology of its preparation and water purification from pharmaceutical drugs and agricultural pesticides

2017-03Journal article Restricted
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dc.contributor.authorBessergenev, V.
dc.contributor.authorMateus, Maria da Conceição
dc.contributor.authorMorgado, I. M.
dc.contributor.authorHantusch, M.
dc.contributor.authorBurkel, E.
dc.date.accessioned2019-11-20T15:07:44Z
dc.date.available2019-11-20T15:07:44Z
dc.date.issued2017-03
dc.description.abstractA tubular photocatalytic reactor of the immersion type for water purification from organic pollutants has been developed. Few important principles were used in the construction of the reactor, namely, a symmetrical and uniform light distribution with direct incidence of UV irradiation on the photocatalyst surface, a highly active mixing of contaminated water as a result of an air bubbling flux, that simultaneously supplying oxygen that is necessary for a photocatalytic reaction. The implemented highly active thin film photocatalyst was prepared by the Chemical Vapor Deposition (CVD) technology using titanium(isopropoxide) (TTIP) as a precursor. The factor K = Surface/Volume of this reactor is about 255 m(-1). Together with an effective mixing, it creates excellent contacts between the contaminants and the photocatalyst which is very favorable for water purification. The efficiency of this reactor was proven by the decomposition of some pharmaceutical drugs (Ibuprofen, Acetylsalicylic acid, Sulphanilamide, Paracetamol, Caffeine) and of some pesticides (Dimethoate, Azoxystrobin, Iprodione, Propizamid, Isoproturon, Fenarimol). The relation between the kinetic constants of photocatalysis and of photolysis is K-photcat/K-photolysis = 2 divided by 18. These results demonstrate the feasibility of the developed photoreactor for the degradation of recalcitrant organic pollutants, such as pharmaceuticals and pesticides in water. (C) 2016 Elsevier B.V. All rights reserved.
dc.description.sponsorshipFundacao para Ciencia e Tecnologia (FCT), Portugal [PEST-OE/QUI/UI4023/2014]
dc.description.sponsorshipCentre of Marine Sciences (CCMAR), Portugal
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.cej.2016.11.148
dc.identifier.issn1385-8947
dc.identifier.issn1873-3212
dc.identifier.urihttp://hdl.handle.net/10400.1/13186
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier Science Sa
dc.subjectOrganic pollutants
dc.subjectImmobilized Tio2
dc.subjectTubular reactor
dc.subjectMethylene-blue
dc.subjectThin-films
dc.subjectDegradation
dc.subjectPerformance
dc.subjectSolar
dc.subjectAcid
dc.subjectDisinfection
dc.titlePhotocatalytic reactor, CVD technology of its preparation and water purification from pharmaceutical drugs and agricultural pesticides
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage316
oaire.citation.startPage306
oaire.citation.titleChemical Engineering Journal
oaire.citation.volume312
person.familyNameBessergenev
person.familyNameMateus
person.givenNameValentin
person.givenNameMaria da Conceição
person.identifier.ciencia-id5F19-8237-1A27
person.identifier.orcid0000-0001-5790-8501
person.identifier.orcid0000-0002-3021-809X
person.identifier.ridE-3359-2012
person.identifier.scopus-author-id6701722001
person.identifier.scopus-author-id17341009800
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication368c596c-3756-4e31-956d-e45dba313b76
relation.isAuthorOfPublication624017ba-d78b-4dd3-9142-ae0d3a49d4db
relation.isAuthorOfPublication.latestForDiscovery368c596c-3756-4e31-956d-e45dba313b76

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