Zeolite-based Fenton-like catalysis for pollutant removal and reclamation from wastewater

Wastewater treatment and reclamation from wastewater are essential for the sustainable use of water resource. Zeolite-based heterogeneous catalysis shows great potential in circumventing the current limitations on pollutant removal and transformation to useful chemicals, inspiring advancements towards practical water treatment. This paper summarizes the methods for synthesizing zeolite-based catalyst, and the corresponding advantages and disadvantages. In comparison with traditional Fenton-like reaction, the superiority of zeolite-based catalysis lies in less sludge, wide pH range and easy recyclability. Accordingly, applications of zeolite-based Fenton-like catalysis (ZFCs) in pollutant removal and reclamation of wastewater were reviewed. Emphasis was placed on the methodological strategies in improving ZFCs, including the combination of external driving force (e.g., photocatalysis or electrochemistry), as well as the introduction of various transition metals into zeolite-based catalyst. Possible challenges and future perspectives for ZFCs were proposed. (C) 2022 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.

Automated summary

Wastewater treatment and reclamation are crucial for sustainable water resource utilization. Zeolite-based heterogeneous catalysis holds great promise in overcoming current limitations and advancing practical water treatment. This paper summarizes the synthesis methods, advantages, and disadvantages of zeolite-based catalysts. In comparison with traditional Fenton-like reactions, zeolite-based catalysis offers advantages of reduced sludge, wide pH range, and easy recyclability. The paper reviews the applications of zeolite-based Fenton-like catalysis (ZFCs) in pollutant removal and wastewater reclamation, emphasizing methodological strategies for improving ZFCs, such as incorporating external driving forces (e.g., photocatalysis or electrochemistry) and introducing transition metals into zeolite-based catalysts. Possible challenges and future perspectives for ZFCs are proposed.