Advances in metal oxide catalysts for efficient VOCs oxidation: Synthesis strategy and catalytic mechanism

The severe hazard of volatile organic compounds (VOCs) makes their decomposition technology a key topic research. Catalytic oxidation is an efficient and environmentally friendly strategy for removing VOCs. The metal oxide catalysts dominate VOCs oxidation reactions, owing to their cost-effectiveness, robust redox properties, tunable crystal structures, and excellent operational stability. Thus, designing high-performance metal oxide catalysts is important. This review systematically summarized the recent advances in constructing highly efficient active metal oxides, with emphasis on representative preparation method, the structure performance relationship, and the reaction mechanism of different types VOCs. Finally, the remaining challenges for creating metal oxide catalysts in practical applications are discussed.