Effect of process parameters on the photocatalytic soot degradation on self-cleaning cementitious materials

- Soot deteriorates appearance of architectural building materials.
- Photocatalytic soot removal was obtained on TiO2 coated mortar with 50 μg TiO2 cm−2.
- Real world soot concentrations do not inhibit the photocatalytic activity.
- Mortar with W/C-ratio of 0.4 (lower porosity) has slightly better photonic efficiency.
- Important step towards self-cleaning building materials was established.