Effect of Zr-La-TiO2 Catalyst on Denitrification for Coal Combustion

Abstract Nanocomposites of TiO 2 co-doped with La and Zr were prepared using the microwave-assisted sol-gel method. The samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), energy dispersive spectroscopy (EDS) and specific surface area measurement (BET). The XRD results revealed that all the catalysts showed an anatase phase. It was found that the particle size of La-Zr-TiO 2 is much smaller than pure TiO 2 . Moreover, the denitrification efficiency of La-Zr-TiO 2 was 65.77%, which was higher than that of the pure and mono-doped TiO 2 in the experiment.