Engineering metal oxide catalyst for volatile organic compounds oxidation

Volatile organic compounds (VOCs) are atmospheric pollutants that are considered the concerns for researchers as they can damage the human health by irritating the eyes and respiratory tract, causing skin allergies, headaches, sore throat, and fatigue. Therefore, the removal of indoor VOCs is urgently sought. Catalytic oxidation of VOCs over cost-effective metal oxides has been reported to be a promising strategy for the removal of VOCs because of the advantages of high efficiency, low cost, and less secondary pollution. In this review, we summarize the recent advances of metal oxide engineering for VOC oxidation, with the special attention to the categories and features of each VOC and the engineering strategies of metal oxides. Moreover, the applications of various metal oxides for catalytic VOC oxidation and the underlying structure-activity relationship are also illustrated. We hope this review will bring researchers new ideas for the design and fabrication of more efficient metal oxide catalysts.