Photocatalytic oxidation of pollutants in gas-phase via Ag₃PO₄-based semiconductor photocatalysts: Recent progress, new trends, and future perspectives

Air pollution has become a significant challenge for both developing and developed nations. due to its close association with numerous fatal diseases such as cancer, respiratory, heart attack, brain stroke. Over recent years, heterogeneous semiconductor photocatalysis emerged an effective approach air remediation the ease of scale-up, ready application in field, use solar light availability number different photocatalysts. To date, most work this area been conducted using UV-absorbing photocatalysts, TiO2 ZnO; However, studies have revealed Ag3PO4 attractive, visible-light-absorbing alternative, bandgap 2.43 eV. In particular, material shown be excellent photocatalyst removal many types pollutants gas phase. widespread is restricted tendency undergo photoanodic corrosion poor reducing power photogenerated conductance band electrons, which are unable reduce O2 superoxide •O2−. These limitations critically evaluated review. addition, on modification via combination conventional heterojunctions or Z-scheme junctions, well photocatalytic mechanistic pathways enhanced gas-pollutants removal, summarized discussed. Finally, overview given future developments that required order overcome these challenges so stimulate further research into promising field.