فهرست نشریات علمی دسترسی آزاد ایران

The present work aims to study the physicochemical properties of materials based on titanate nanotubes doped with cerium oxide at different contents. The prepared materials are applied in the adsorption of methylene blue and as a coating to prevent corrosion of commercial steel, and for the evaluation of their antioxidant activity. Cerium-doped titanate nanotubes (Ce-TiNTs) were synthesised via a hydrothermal method and evaluated as multifunctional nanomaterials for environmental and industrial applications. Structural and surface characterisation using X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM) and N₂ adsorption-desorption isotherms. The materials exhibited high adsorption efficiency toward methylene blue (MB), exceeding 92 %. The anticorrosion properties of the nanotubes studied in an acid medium showed an important inhibition efficiency, reaching 95-96% in the case of doped nanotubes. Antioxidant analysis showed that 5 % Ce-TiNTs exhibited stronger radical scavenging activity compared to 10 % Ce-TiNTs. These results indicate that the performance of Ce-TiNTs depends on the doping level, with different concentrations favouring distinct functionalities. Overall, Ce-TiNTs demonstrate complementary multifunctional behaviour, as 10 % doping enhances corrosion protection while 5 % doping maximises antioxidant activity, highlighting their potential for applications in wastewater treatment and corrosion prevention.