Original title: Size Dependency of Nanocrystalline TiO2 on Photocatalytic Reactivity Exemplified by CO2 Photoreduction
Translated title: Vliv velikosti krystalitů TiO2 na jeho fotokatalytickou reaktivitu
Authors: Kočí, K. ; Obalová, L. ; Matějová, Lenka ; Šolcová, Olga ; Plachá, D. ; Lacný, Z.
Document type: Papers
Conference/Event: 1st Nanomaterials and Nanotechnology Meeting Nano Ostrava 2008, Ostrava (CZ), 2008-09-01 / 2008-09-04
Year: 2008
Language: eng
Abstract: [eng] [cze]
The aim of this work is to assess the effect of particle size on photocatalytic reactivity of TiO2 exemplified by the photoreduction of CO2 by water. As the particle size decreased higher methane yields over the TiO2 nanoparticles under the illumination of the light were obtained. Results were compared with yields of mathane over Degussa P25, which in non-porous. We demonstrated that photoreactivity of Degussa P25 was lower than all tested TiO2 nanoparticles. Fotokatalytická aktivita TiO2 částic byla testována na reakci fotodegradace CO2 vodou. S klesající velikostí částic TiO2 roste výtěžek methanu. Získané výsledky byly porovnány s katalyzátorem Degussa P25. Ve všech případech byla aktivita připravených TiO2 částic vyšší než u Degussy P25.
Keywords: carbon dioxide; photocatalysis; titanium dioxide
Project no.: CEZ:AV0Z40720504 (CEP), KAN400720701 (CEP)
Funding provider: GA AV ČR
Host item entry: Book of Abstracts, ISBN 978-80-7329-190-7

Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0163401

Permalink: http://www.nusl.cz/ntk/nusl-39103


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