What are the Challenges in Using Oxynitride Photocatalysts?
While oxynitride photocatalysts offer several advantages, they also come with challenges. The synthesis of these materials often requires high temperatures and specific atmospheres, which can be technically demanding. Additionally, the stability of these materials under operational conditions is a concern. For instance, some oxynitrides may degrade upon prolonged exposure to light or during catalytic reactions, thereby losing their activity.