Influence of the properties of TiO2 particles on a photocatalytic acrylate polymerisation

The maximum Photo-EMF of TiO2 as a measure of the efficiency of charge separation increases with increasing number of primary crystallites per particle. A direct correlation between the maximum Photo-EMF Umax and the maximum rate of the acrylate photopolymerisation rpmax shows that the photoelectric primary processes in the catalyst are of great importance for its photocatalytic activity.