Oxidation of NOx Using Hydrogen Peroxide Vapor over Mo/TiO2

x Mo/TiO 2 catalysts ( x = 1, 2, 3, and 4%) were prepared using the coprecipitation method in the present study. The coprecipitation method was used in the thermal catalytic decomposition of H 2 O 2 steam to treat NO x at a low temperature range (80-160 °C). Several characterization techniques have been employed, such as X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller measurements, transmission electron microscopy (TEM), scanning electron microscopy and energy-dispersive X-ray spectrometry (SEM-EDXS), and Fourier transform infrared spectroscopy. The activity tests showed that the incorporation of molybdenum into TiO 2 led to a significant increase in the catalytic oxidation of NO, and under the condition of H 2 O 2 /NO = 6:1 (molar ratio), the NO x removal rate of 2% Mo/TiO 2 is the highest, reaching 92.56%. XRD, TEM, and SEM-EDXS analyses showed that Mo was well dispersed on the surface of an anatase-phase TiO 2 . XPS analysis indicated that Mo mixed with slag mainly existed in the form of Mo 6+ . Moreover, in comparison with the mostly reported SCO catalysts, used for the elimination of NO, the prepared Mo/TiO 2 catalyst showed excellent stability and sulfur resistance.