Defect engineering in heterogeneous catalytic oxidation catalysts for air pollution elimination: A review of recent progress and strategies

Catalytic oxidation, which converts hazardous materials to harmless small molecules at low temperature, has been a promising and effective technology for atmospheric pollution treatment, and catalyst synthesis via defect engineering, has received much attention recently. By creating defects in studied materials, the electronic properties could be regulated, and a variety of new catalysts exhibit superior performance for pollution elimi-nation. However, there is still a lack of systematic understanding of the application in the catalytic oxidation process, which could make a difference in the development of catalysts. In this review, recent progress in applying defect engineering in catalytic oxidation is summarized. Firstly, different types of defects are introduced clearly through some representative cases; then, various strategies adopted to create defects are concluded correspondingly; thirdly, the function of different defects on the physical-chemical properties and performance of catalysts are classified and concluded. Finally, the existing challenges and the future possible directions for applying defect engineering in the field of catalytic oxidation are discussed.

Automated summary

Catalytic oxidation, a technology that converts hazardous materials to harmless molecules, has been widely studied for atmospheric pollution treatment. Recent attention has been focused on catalyst synthesis via defect engineering, which creates defects in materials to regulate their electronic properties and enhance catalytic performance. However, there is still a lack of systematic understanding of the application of defect engineering in catalytic oxidation. This review summarizes the recent progress in applying defect engineering, including the introduction of different types of defects, strategies to create defects, and the impact of defects on catalyst properties and performance.