Upscale Engineered Catalysts for Advanced Oxidation Processes

ABSTRACT Advanced oxidation processes (AOPs) have emerged as one of the most promising strategies for addressing water pollution due to their ability to generate highly reactive oxygen species for the efficient degradation of contaminants. Catalysts play a pivotal role in improving the efficiency and selectivity of AOPs; however, challenges such as poor stability, secondary pollution, and limited large‐scale applicability remain major concerns. This review provides a comprehensive overview of recent advances in catalyst development for AOPs, focusing on strategies to overcome these limitations, including scalable, engineered, supported/integral catalysts. Meanwhile, we also discuss different combinations of these catalysts and reactors to optimize the degradation performance of these upscale engineered catalysts. We also highlight the critical advances and future directions in AOP catalyst research, offering insights into sustainable, and practical solutions for water purification.