Titanium dioxide/Vanadium oxide nanocomposites synthesized via sonochemical and hydrothermal process for energy storage application

V₂O₅/TiO₂ nanocomposites were synthesized via sonochemical and hydrothermal process. At first, titanium dioxide (TiO₂) nanopowders were synthesized by sonochemical process using titanium isopropoxide as a titanium source. Meanwhile, hydrothermal process was carried out to modify the structure of commercial V₂O₅ powder to be nanorod-like structure V₂O₅ with increasing specific surface area. Structural and morphological properties of the composites were characterized by XRD and SEM, respectively. The XRD results indicated that the crystalline of the composites corresponds to anatase and orthorhombic structures of TiO₂ and V₂O₅, respectively. The significant variation of charge storage properties of the nanocomposites under ultraviolet irradiation were obtained by varying V₂O₅ content in the composite. Results suggest that V₂O₅ loaded into the nanocomposite play a key role as a storage material of photoelectron generated by TiO₂ illuminated under ultraviolet.