TiO2 and TiO2-Doped Films Able to Kill Bacteria by Contact: New Evidence for the Dynamics of Bacterial Inactivation in the Dark and under Light Irradiation
Figure 2
E. coli inactivation on TiO2 sputtered on PE for 8 min irradiated with simulated solar light (52 mW/cm2).
(a) TiO2 sputtered for different times without RF-plasma pretreatment for 8 min, 10 min, 5 min, and polyethylene alone
(b) TiO2 sputtered for 8 min with surface RF-plasma pretreatment at 1 torr for 15 min, 20 min, 30 min, and 5 min
(c) TiO2 sputtered 8 min RF air plasma pretreatment for 15 min, 20 min, 30 min, and 5 min
(d) TiO2 sputtered 8 min with UVC pretreatment in air for 20 min, 15 min, 10 min, and 5 min
