TiO2 is loaded on the Di Linh clay and used as a catalyst for the liquid oxidation of styrene. All catalysts are characterized by several physical techniques (XRD, FTIR, SEM). The oxidation of styrene is carried out at mild conditions (40-60°C, atmospheric pressure, H2O2 oxidant). The reaction data show that TiO2 species serve as active centers for the oxidation of styrene to benzaldehyde. Styrene conversion and product selectivity are strongly dependent on the TiO2 loadings and reaction conditions. The benzaldehyde selectivity may reach up to 89 percent at a styrene conversion of 55 percent under typical conditions.