Preparation and characterization of Pt/Pd-modified titanium dioxide nanoparticles for visible light irradiation

- Enhanced photoactivity is promoted with decrease of TiO2 and Pt/Pd bimetallic NP size.
- Pt/Pd-modified TiO2 photocatalysts exceptionally active in phenol degradation.
- The effect of platinum precursor on photocatalytic activity was observed.
- Composites with bimetallic nanoparticles showed improved photoactivity compared to monometallic ones.