Photoluminescence Property of Titanium Silicalite-2 Catalyst and Its Photocatalytic Reactivity for the Direct Decomposition of NO at 295 K

The titanium silicalite-2 (TS-2) catalyst exhibits a photoluminescence spectrum at around 450–550 nm as well as the distinct and characteristic photocatalytic activity towards the direct decomposition of NO into N2, O2 and N2O at 295 K under UV irradiation. XAFS and photoluminescence investigations indicated that the charge transfer excited state of the titanium oxide moieties having a tetrahetral coordination plays a significant role in the photoluminescence and photocatalytic reactivities of the TS-2 catalyst.