Simultaneous removal of NO and Hg over Ce-Cu modified VO/TiO based commercial SCR catalysts.

A series of novel Ce-Cu modified VO/TiO based commercial SCR catalysts were prepared via ultrasonic-assisted impregnation method for simultaneous removal of NO and elemental mercury (Hg). Nitrogen adsorption, X-ray diffraction (XRD), temperature programmed reduction of H (H-TPR) and X-ray photoelectron spectroscopy (XPS) were used to characterize the catalysts. 7% Ce-1% Cu/SCR catalyst exhibited the highest NO conversion efficiency (>97%) at 200-400°C, as well as the best Hg oxidation activity (>75%) at 150-350°C among all the catalysts.