Influence of visible-light irradiation on physicochemical and photocatalytic properties of nitrogen-doped three-dimensional (3D) titanium dioxide

- The N-3D TiO2 was synthesized at low temperature via a modified hydrothermal process and ultrasound irradiation.
- The N-3D TiO2 is irradiated with visible-light (*N-3D TiO2) to improve the hydroxylation of its surface.
- The N- and *N-3D TiO2 exhibited excellent photocatalytic and antibacterial activities.
- Moreover, the *N-3D TiO2 exhibits excellent photocatalytic stability.