Advances in selective catalytic oxidation materials for nitrogen-containing volatile organic compounds
Volatile organic compounds(VOCs)and nitrogen oxides(NOx),recognized as pivotal pre-cursors to PM25 and O3,necessitate the implementation of immediate and stringent reduction and con-trol strategies.Nitrogen-containing volatile organic compounds(NVOCs),a quintessential class of het-eroatom VOCs,profoundly impact atmospheric quality and public health.Oxidative control technologies targeting NVOCs require the synergistic reduction of NVOCs and the byproduct NOx.Selective catalytic oxidation(SCO)has emerged as an effective technique for NVOC treatment,transforming waste gas hydrocarbons into CO2 and H2O,while selectively oxidizing nitrogen constituents to N2.The develop-ment of SCO catalysts for NVOCs is critical,demanding catalysts with exceptional activity,selectivity,and durability.Current research on SCO catalysts focuses on noble metals such as platinum,palladium,silver,and transition metal oxides.This review examines advancements in noble metal and transition metal oxide catalysts for NVOC selective oxidation,outlines the strengths and limitations of various cat-alysts,and investigates the selective oxidation reaction mechanisms of NVOCs and their determinants on these catalysts.The aim is to provide insights for the innovation of high-performance catalysts de-signed for NVOC selective oxidation and to elucidate the reaction dynamics and mechanisms,ultimately advancing efficient NVOC control technologies and enhancing their effective purification and management.
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