Selective photocatalytic oxidation of gaseous ammonia to dinitrogen in a continuous flow reactor

Commercial titanium dioxide nanomaterials were found to be active in selective photocatalytic oxidation of ammonia to dinitrogen (photo-NH3-SCO). Photoactivated conversion of 1000 ppm ammonia in simulated air with high selectivity for dinitrogen was achieved over a thin layer of TiO2 in a flow reactor at 150 °C, 300 h−1 volume hourly space velocity and 1.1 mW cm−2 UVA illumination.