Performance and mechanism of visible-light-inducedplasmonic photocatalytic purification of NO with Ag/AgX

Photocatalysis technology could utilize solar energy for pollutants degradation and water splitting, displaying great potential in environmetnal remidiation and clean enerfy development. Significant progresses have been made on promoting photocatalysis efficiency and extending light absorption range. Specific semiconductors and plasmonic metals can behave photocatalysts. Recently, the plasmonic photocatalysis with Ag/AgX (X=Cl, Br, I) has been received increasing research interests. The preparation and application of Ag/AgX plasmonic photocatalysts have extensively explored. However, the Ag/AgX plasmonic photocatalysts were mainly applied in water splitting and degradation of aquous pollutants. The application of Ag/AgX in air purification has been rarely reported. Also, the mechanism of photocatalytic NO purification with Ag/AgX has never been revealed.