What are Common Materials with Suitable Band Gaps?
Several materials have been identified with band gaps suitable for photocatalytic applications. Titanium dioxide (TiO2) is one of the most studied photocatalysts due to its stability and non-toxicity, despite its wide band gap (~3.2 eV). Zinc oxide (ZnO) and cadmium sulfide (CdS) are other examples, each with unique advantages and challenges. Researchers are continuously exploring new materials and doping strategies to optimize band gaps for improved performance.
