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dc.contributor.authorKočí, Kamila
dc.contributor.authorMatějová, Lenka
dc.contributor.authorReli, Martin
dc.contributor.authorČapek, Libor
dc.contributor.authorMatějka, Vlastimil
dc.contributor.authorLacný, Zdenek
dc.contributor.authorKuśtrowski, Piotr
dc.contributor.authorObalová, Lucie
dc.date.accessioned2014-05-20T12:22:24Z
dc.date.available2014-05-20T12:22:24Z
dc.date.issued2014
dc.identifier.citationCatalysis Today. 2014, vol. 230, p. 20-26.cs
dc.identifier.issn0920-5861
dc.identifier.issn1873-4308
dc.identifier.urihttp://hdl.handle.net/10084/101857
dc.description.abstractPure and palladium-enriched TiO2 and TiO2-ZrO2 photocatalysts were prepared by the sol–gel process controlled within reverse micelles and impregnated under vacuum. The catalysts were characterized by ICP MS, nitrogen physisorption, X-ray diffraction, UV–vis diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy and TEM/SEAD and investigated in the CO2 photocatalytic reduction in a batch annular photoreactor. Methane and hydrogen were the main reduction products in the gas phase. Low amounts of carbon monoxide were also detected. The observed order of product yields (μmol/g of a catalyst) was: H2 > CH4 > CO. The catalyst performance (expressed as μmol of products per grams of a photocatalyst) ranking was TiO2-ZrO2 > Pd/TiO2-ZrO2 > TiO2 > Pd/TiO2 > TiO2 Evonic P25. The detrimental effect of surface modification by Pd on the photocatalytic properties of both TiO2 and TiO2-ZrO2 photocatalysts can be explained by the presence of PdO clusters masking the supports surface and/or playing the role of the recombination centres.cs
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofseriesCatalysis Todaycs
dc.relation.urihttp://dx.doi.org/10.1016/j.cattod.2013.10.002cs
dc.rightsCopyright © 2013 Elsevier B.V. All rights reserved.cs
dc.subjectcarbon dioxidecs
dc.subjectphotocatalysiscs
dc.subjectpalladiumcs
dc.subjectsol–gelcs
dc.subjecttitaniacs
dc.subjectzirconiacs
dc.titleSol-gel derived Pd supported TiO2-ZrO2 and TiO2 photocatalysts; their examination in photocatalytic reduction of carbon dioxidecs
dc.typearticlecs
dc.identifier.doi10.1016/j.cattod.2013.10.002
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume230cs
dc.description.lastpage26cs
dc.description.firstpage20cs
dc.identifier.wos000333800300005


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