Enhanced Photocatalysis of Co-Doped Titania by Mn/WO₃ Under Visible Light Irradiation

TiO2 was co-doped with Mn/WO₃ with varying concentrations of Mn, and its photocatalytic activity was evaluated by carrying out the degradation of methylene blue using it under visible-light illumination. The X-ray diffraction and photocatalytic activity results revealed that the crystallinity and photocatalytic activity of the co-doped TiO₂ decreased with an increase in the Mn concentration. The optimal Mn/Ti ratio was 0.17%, at which the photocatalytic activity of TiO₂ enhanced by a factor of 1.8. The photocatalysts exhibited superhydrophilic properties when coated onto glass plates using a dipping method. The photocatalysts fabricated using the simple method proposed in this study can be widely used in industry, medical devices, and tissue engineering.