Heterogeneous photocatalytic oxidation systems using titanium dioxide (TiO) have been extensively studied for the removal of several volatile organic compounds (VOCs). The addition of noble metals such as palladium on TiO may improve photocatalytic activity by increasing charge separation efficiency. In this work, palladium was impregnated on TiO and the efficiency of the new catalyst was tested and compared with that of pure TiO. Pd was impregnated on TiO by the reduction method, using NaBH, and was characterized by XRD, XPS, UV-Vis, and H chemisorption. The photocatalytic tests were performed in an annular coated-wall reactor using octane, isooctane, n-hexane, and cyclohexane at inlet concentrations varying from 100 to 120 ppmv. Compared with pure TiO film, the photocatalytic activity of TiO impregnated with 1 wt% of palladium was improved. All the aforementioned analytical techniques confirmed the presence of Pd incorporated into the structure of TiO and the conversion rates were studied in a broad range of residence times, yielding up to 90 % or higher rates in 40 s of residence time, thus underscoring the relevant contribution of the technology.