Wavelength Effect on Photocatalytic Reduction of CO2 by Ag/TiO2 Catalyst

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dc.contributor.author Kočí, Kamila
dc.contributor.author Zatloukalová, K.
dc.contributor.author Obalová, Lucie
dc.contributor.author Krejčíková, S.
dc.contributor.author Lacný, Zdenek
dc.contributor.author Čapek, Libor
dc.contributor.author Hospodková, Alice
dc.contributor.author Šolcová, Olga
dc.date.accessioned 2012-10-29T09:54:40Z
dc.date.available 2012-10-29T09:54:40Z
dc.date.issued 2011
dc.identifier.citation Chinese journal of catalysis. 2011, vol. 32, issue 5, p. 812-815. cs
dc.identifier.issn 0253-9837
dc.identifier.uri http://hdl.handle.net/10084/95128
dc.description.abstract Photocatalytic reduction of CO2 by water was performed in the presence of a Ag/TiO2 catalyst under illumination by lamps with different wavelengths (254, 365, and 400 nm). The yields of the main products (methane and methanol) were higher with the 254 nm lamp than with the 365 lamp while no products were observed with the 400 nm lamp. This was because the electron-hole generation rate increased with increasing energy of irradiation (decreasing wavelength) and there were higher densities of electron states at higher energies in TiO2. The increased efficiency of electron-hole generation with a shorter wavelength irradiation increased the efficiency of the catalyst. The energy of the electrons excited by visible light (400 nm) was too low for CO2 photocatalytic reduction. cs
dc.language.iso en cs
dc.publisher Elsevier cs
dc.relation.ispartofseries Chinese journal of catalysis cs
dc.relation.uri http://dx.doi.org/10.1016/S1872-2067(10)60199-4 cs
dc.subject silver doping cs
dc.subject titania cs
dc.subject carbon dioxide reduction cs
dc.subject photocatalysis cs
dc.subject wavelength cs
dc.title Wavelength Effect on Photocatalytic Reduction of CO2 by Ag/TiO2 Catalyst cs
dc.type article cs
dc.identifier.location Není ve fondu ÚK cs
dc.identifier.doi 10.1016/S1872-2067(10)60199-4
dc.type.status Peer-reviewed cs
dc.description.source Web of Science cs
dc.description.volume 32 cs
dc.description.issue 5 cs
dc.description.lastpage 815 cs
dc.description.firstpage 812 cs
dc.identifier.wos 000291508200017

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