TiO2 suspension exposed to H2O2 in ambient light or darkness: Degradation of methylene blue and EPR evidence for radical oxygen species

- TiO2 particles and H2O2 can produce ROS in darkness.
- MB is degraded by chemical interaction of TiO2 particles with H2O2 in darkness.
- Strongest effect by mixing high amount of TiO2 nano-sized particles.