High visible-light active Ir-doped-TiO2 brookite photocatalyst synthesized by hydrothermal microwave-assisted process

- Visible light-active photocatalyst Ir doped-TiO2 brookite structure.
- Reaction sites separation with high-quality TiO2 faces, more important than surface area.
- Photocatalytic activity of Ir doped-TiO2 brookite optimized by iridium dopant concentration.
- Microwave process remarkably reduced reaction time and energy, obtaining an efficient and competitive process.