Research Article

Photocatalytic Degradation of Chlorobenzene by in High-Temperature and High-Pressure Water

Figure 6

Schematic energy-level diagram showing photoreduction and photooxidation at the TiO2-aqueous solution interface. Symbols denote the photon energy of near-UV light, and the conduction-band electron and positive hole, respectively. a; H+/H2, b; H+, O2/H2O, and c; Ag+/Ag: electronic redox levels. (a) Aqueous solution in ambient conditions; T = 25°C, P = 0.1 MPa. (b) Aqueous solution in hydrothermal conditions; T = 100–400°C, P = 30 MPa.
512170.fig.006a
(a) Ambient condition
512170.fig.006b
(b) Hydrothermal condition