ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Oxidation of ammonia using modified TiO2 catalyst and UV-VIS irradiation

Łukasz Kowalczyk and Małgorzata Iwona Szynkowska

Institute of General and Ecological Chemistry, Technical University of Lodz, Zeromskiego 116, 90-924 Lodz, Poland

E-mail: malgorzata.szynkowska@p.lodz.pl

Abstract: The impact of UV and VIS irradiation and specific nitrogen modification on a 5%Cu/5%TiO2/SiO2 catalyst in the course of oxidation of ammonia was investigated. It was demonstrated that both UV and VIS irradiation increased the conversion of the reactant in the reaction studied. Due to a good distribution of titanium dioxide and copper on the surface of the support, higher ammonia conversion was achieved. Physico-chemical characterisation of the catalysts studied using methods such as BET, SEM-EDS, TPD (NH3), and TPD (CO2) was carried out.

Keywords: catalytic oxidation – photo-catalysis – ammonia – photo-oxidation – degradation – TiO2 – odours

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-012-0159-x

Chemical Papers 66 (6) 607–611 (2012)