What Materials are Commonly Used as Photocatalysts?
The most widely studied photocatalyst is titanium dioxide (TiO2) due to its strong oxidative power, chemical stability, and non-toxicity. Other materials such as zinc oxide (ZnO), cadmium sulfide (CdS), and various doped semiconductors are also being explored. Advances in material science have led to the development of composite photocatalysts, which combine different materials to enhance light absorption and charge separation efficiency.
