In situ characterization of the Ag+ ion-exchanged zeolites and their photocatalytic activity for the decomposition of N2O into N2 and O2 at 298 K

Identification of the silver state in the framework of Ag-containing zeolite by XRD, FTIR, photoluminescence,109Ag NMR, EPR, DR UV-vis, TEM and XPS investigations

“…8), in line with earlier reports [41][42][43][44][45][46][47][48]. The band at 245 nm for as prepared Ag 6.0 SiBEA is more pronounced than that for as prepared Ag 3.0 SiBEA.…”

Development of alternative photocatalysts to TiO2: Challenges and opportunities

“…Moreover, the performance of these materials in the photocatalytic decomposition of N 2 O into N 2 and O 2 has been studied and compared to the Ag + /Y-zeolite structure. 189,190 In situ spectroscopic investigation of the Ag + / zeolite catalysts indicated that two-coordinate isolated Ag + ions exist within the ZSM-5 zeolite cavities, while the aggregated Ag species were formed within the Y-zeolite. The analysis of the efficiency as a function of the wavelength of the UV light source indicated that photoexcitation of the Ag + -N 2 O adducts (l $ 225 nm) is the key step of the photocatalytic decomposition of N 2 O.…”

Novel TiO2/C3N4 Photocatalysts for Photocatalytic Reduction of CO2 and for Photocatalytic Decomposition of N2O

“…Due to high attention paid to this topic, there are several thorough reviews summing up the state of the art. − Nitrous oxide, on the other hand, is attracting only partial attention of the photocatalytic society, and to the best of authors’ knowledge, there are no reviews summarizing achievements in the field of photocatalytic reduction of nitrous oxide. Matsuoka et al conducted the photocatalytic reduction of N 2 O in the presence of zeolite photocatalysts in the beginning of this millennia, , but after that, there have not been reported any papers dealing with photocatalytic reduction of nitrous oxide. Our group published several papers about photocatalytic reduction of N 2 O in the presence of ZnS immobilized on montmorillonite and TiO 2 based photocatalysts. − …”