Organic Electrosynthesis - Fundamentals and Applications of Organic Electrochemistry - page 276

Figure 6.34 Photochemical cell with TiO 2
electrode
6.13.2 Photocatalysts
When the circuit between TiO 2 and Pt
electrodes is shortened, Pt is eventually
deposited on the surface of TiO 2 . Accordingly, a
particle of TiO 2 with some Pt deposited on it
( Figure 6.35 ) can be considered as a short
circuit photoelectrochemical cell. In the case of
such a photocatalyst, oxidation and reduction
occur simultaneously at two sites on the small
particle. Since the oxidation and reduction sites
are very close to each other, various unique
organic synthetic reactions have been