caa a22 4500 469038853 CHVBK 20180323132804.0 cr unu---uuuuu 170328e19920401xx s 000 0 eng 10.1007/BF00810945 doi (NATIONALLICENCE)springer-10.1007/BF00810945 Photocatalytic oxidation of aqueous ammonia (ammonium ion) to nitrite or nitrate at TiO2 particles [Elektronische Daten] [Cy Pollema, Emil Milosavljević, James Hendrix, Ljiljana Solujić, John Nelson] Photokatalytische Oxidation von wäßrigem Ammoniak (Ammoniumion) zu Nitrit oder Nitrat an TiO2 Partikeln Summary: The photocatalytic oxidation of ammonia (ammonium ion) in the presence of air or pure oxygen at titanium(IV) oxide powder surfaces and induced by UV light was investigated. Experimental conditions were varied and the effect ofpH, sparging gas, as well as the concentration of both ammonia (ammonium ion) and photocatalyst were investigated. It has been established that the principal product of photocatalytic oxidation depends onpH, and is either nitrite or nitrate. A gas-diffusion flow injection analysis system with conductivity detection was used for on-line monitoring of ammonia concentration. In addition, ion-chromatography with UV detection was utilized for offline monitoring of nitrite and nitrate concentrations. The use of a photocatalyst such as TiO2 may prove to be a viable method for conversion of ammonia (ammonium ion) to either nitrite or nitrate. Springer-Verlag, 1992 Ammonia nationallicence Nitrate nationallicence Oxidation nationallicence Photocatalysis nationallicence Titanium(IV) oxide nationallicence Pollema Cy Department of Chemical and Metallurgical Engineering, Mackay School of Mines, University of Nevada, 89557, Reno, NV, USA aut Milosavljević Emil Faculty of Chemistry, University of Belgrade, YU-11001, Belgrade, Yugoslavia aut Hendrix James Department of Chemical and Metallurgical Engineering, Mackay School of Mines, University of Nevada, 89557, Reno, NV, USA aut Solujić Ljiljana Faculty of Chemistry, University of Belgrade, YU-11001, Belgrade, Yugoslavia aut Nelson John Department of Chemistry, University of Nevada, 89557, Reno, NV, USA aut Monatshefte für Chemie / Chemical Monthly Springer-Verlag 123/4(1992-04-01), 333-339 0026-9247 123:4<333 1992 123 706 https://doi.org/10.1007/BF00810945 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00810945 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pollema Cy Department of Chemical and Metallurgical Engineering, Mackay School of Mines, University of Nevada, 89557, Reno, NV, USA aut NATIONALLICENCE 700 1- Milosavljević Emil Faculty of Chemistry, University of Belgrade, YU-11001, Belgrade, Yugoslavia aut NATIONALLICENCE 700 1- Hendrix James Department of Chemical and Metallurgical Engineering, Mackay School of Mines, University of Nevada, 89557, Reno, NV, USA aut NATIONALLICENCE 700 1- Solujić Ljiljana Faculty of Chemistry, University of Belgrade, YU-11001, Belgrade, Yugoslavia aut NATIONALLICENCE 700 1- Nelson John Department of Chemistry, University of Nevada, 89557, Reno, NV, USA aut NATIONALLICENCE 773 0- Monatshefte für Chemie / Chemical Monthly Springer-Verlag 123/4(1992-04-01), 333-339 0026-9247 123:4<333 1992 123 706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer