The Photo-Oxidation of CO from Ambient Air Using Catalytic Asphaltic Pavement

Road transportation in urban areas may be considered a major source of environmental pollution. The purpose this study is to determine the effectiveness oxidation carbon dioxide gas emitted by an internal combustion engine. This achieved using asphaltic pavement coated with Cu/TiO2 nanoparticles spraying and irradiating white light under ambient conditions reduce air pollution problem (carbon monoxide) caused vehicles. Using electron microscopy, energy dispersive spectroscopy, Fourier transform infrared we determined physicochemical morphological characteristics photocatalyst. Following characterization study, photo-catalytic activity asphalt materials was determined. Experimental results showed that CO conversion positively depends on different conditions, including Cu loading, intensity, relative humidity. However, flow rate trend. optimal operating parameters were as follows: loading (3.6% weight), (1 L/min), humidity (30%), intensity (35 W/m2) ensure best photo-oxidation efficiency 56.4% after three hours operation. A mathematical correlation related CO2 removal function found factor 0.975 variance equal 0.964. Moreover, kinetic pathway for at various oxygen concentrations presented.