What Challenges Exist in Using Anatase for Catalysis?
1. Stability: Anatase is metastable and can transform into rutile at elevated temperatures, which may limit its use in high-temperature catalysis. 2. Light Absorption: Anatase primarily absorbs UV light, which constitutes a small fraction of the solar spectrum. Efforts are ongoing to modify anatase to extend its light absorption into the visible range, enhancing its photocatalytic efficiency. 3. Recombination of Charge Carriers: In photocatalysis, the recombination of photo-generated electrons and holes can reduce the efficiency of the process. Strategies such as doping and creating heterojunctions are employed to mitigate this issue.
