Figure 6
Bacteria-activated photocatalysis. (a) Ground state absorption spectrum for Staphylococcus aureus calculated from reflectance of S. aureus deposited on a tile surface. The inset shows bandgap estimation. (b) Pseudo first order rate coefficients for inactivation of Staphylococcus aureus on various coatings. Dark control measures the ability of the rutile/anatase + 0.1 (w/w) PHF coatings to inactivate bacteria in the dark. Light control measures the ability of rutile/silica coatings to inactivate bacteria in light. The ratio of bacteria was ~80 CFU per 1 µg of TiO2. N = 6.
