Simple preparation of Mn-N-codoped TiO2 photocatalyst and the enhanced photocatalytic activity under visible light irradiation

- Mn-N-codoped TiO2 were synthesized by a simple sol-gel synthesis method.
- Mn-N-TiO2 exhibited a strong absorption at 400-650 nm.
- Mn and N codoping enhanced the thermal stability of TiO2 structure.
- Mn-N-TiO2 showed significant photocatalytic activity under visible light for RhB.