Effect of hydrodynamics during sol-gel synthesis of TiO2 nanoparticles: From morphology to photocatalytic properties

- Macro-mixing is crucial during the first step as it determines the nucleation rate and then the primary TiO2 particle size.
- The micro-mixing has an influence on particle properties especially on TiO2 particle stability.
- It was possible to coat a homogeneous film of about 200 nm in all cases.
- No difference was observed between the photoactivity of synthesized TiO2 with different mixers.