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Photocatalytic Decomposition of N2O on Ag-TiO2
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SYSNO ASEP 0381105 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Photocatalytic Decomposition of N2O on Ag-TiO2 Author(s) Kočí, K. (CZ)
Krejčíková, Simona (UCHP-M) RID, ORCID, SAI
Šolcová, Olga (UCHP-M) RID, ORCID, SAI
Obalová, L. (CZ)Source Title Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 191, č. 1 (2012), s. 134-137Number of pages 4 s. Action International Symposium on Nitrogen Oxides Emission Abatement Event date 04.09.2011-07.09.2011 VEvent location Zakopane Country PL - Poland Event type EUR Language eng - English Country NL - Netherlands Keywords photocatalytic decomposition ; N2O ; Ag doping ; TiO2 Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA104/09/0694 GA ČR - Czech Science Foundation (CSF) Institutional support UCHP-M - RVO:67985858 UT WOS 000308675000024 DOI 10.1016/j.cattod.2012.01.021 Annotation Catalysts with various Ag loading (0.7–5.2 wt%) in the powder form were prepared by the sol–gel process controlled in the reverse micellar environment. X-ray diffraction (XRD), nitrogen adsorption measurement, UV–vis and elemental analysis were employed for characterization of catalysts. Effect of various silver loadings on photocatalytic activity of TiO2 catalysts in N2O photocatalytic decomposition was studied. Photocatalytic decomposition of N2O was performed in annular batch reactor illuminated with 8 W Hg lamp (254 nm wavelength). Reaction kinetic corresponds to first-order reaction rate which is in agreement with plausible reaction mechanisms. The highest N2O conversion of 77% after 24 h was reach over TiO2 modified by 3.4 wt% Ag. The Ag metal clusters could provoke a decrease in the electron–hole recombination rate. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2013
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