In this study, sorption of gaseous SO2 on nitrogen-modified titanium dioxide (TiO2/N) materials was investigated. The TiO2/N materials were prepared by thermal modification of commercial TiO2 in gaseous ammonia flow. First, TiO2 was calcined at 100-700 °C (Δt = 200 °C). The obtained samples were then rinsed with water to remove the residual ammonium groups adsorbed on the TiO2 surface. The influence of modification temperature, BET surface area, pore volume and nitrogen content on the efficiency of SO2 sorption on TiO2 surface was discussed. The best result was obtained for nitrogen-modified material that is heat treated at 100 °C. The total sorption capacity calculated for this sample was 20.96 mg SO2/1 g TiO2. It was shown that TiO2 modified with nitrogen at low temperature can be a very effective sorbent in capturing SO2 particles.