Selective Catalytic Reduction of NO by Ammonia on V₂O₅/TiO₂ Catalyst Prepared by Sol-Gel Method

V₂O₅/TiO₂ catalysts with various vanadia loadings were prepared using inorganic precursor of vanadium by sol-gel method, and characterized by XRF, XRD, BET, Raman spectra and XPS techniques. Results demonstrated that the catalyst with 6.17 wt% vanadia had a high activity in the temperature range from 180 to 450 °C at a gas hourly space velocity of 10,000 h⁻¹ and the activity was affected by increasing the space velocity at the temperature below 270 °C. All the catalysts showed high activity in the different temperature range under tested conditions.