What are the Challenges in Using Sunlight for Catalysis?
Despite its potential, there are several challenges in using sunlight for catalysis:
1. Efficiency: The efficiency of photocatalysts under sunlight is often lower than desired. This is because only a small portion of the solar spectrum is effectively utilized. 2. Stability: Photocatalysts can degrade over time, reducing their effectiveness. 3. Cost: The development of cost-effective and scalable photocatalysts remains a significant hurdle. 4. Selectivity: Achieving high selectivity in photocatalytic reactions is challenging, which can lead to unwanted by-products.