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Photocatalytic Decomposition of N2O on Ag-TiO2
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SYSNO ASEP 0364470 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Photocatalytic Decomposition of N2O on Ag-TiO2 Author(s) Kočí, K. (CZ)
Krejčíková, Simona (UCHP-M) RID, ORCID, SAI
Lacný, Z. (CZ)
Šolcová, Olga (UCHP-M) RID, ORCID, SAI
Obalová, L. (CZ)Source Title Book of Abstracts. - Kraków : Wydawnictwo Uniwersitetu Jagiellonskiego, 2011 - ISBN 978-83-233-3249-7 Pages s. 159-161 Number of pages 3 s. Action International Symposium on Nitrogen Oxides Emission Abatement NOEA 2011 Event date 04.09.2011-07.09.2011 VEvent location Zakopane Country PL - Poland Event type EUR Language eng - English Country PL - Poland Keywords N2O2 ; photocatalytic decomposition ; Ag doping ; TiO2 Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GD203/08/H032 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40720504 - UCHP-M (2005-2011) 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 hours 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 2012
Number of the records: 1