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Self doping promoted photocatalytic removal of no under visible light with bi2moo6: Indispensable role of superoxide ions

“…In addition, hydrocarbons or NH 3 was often applied as the reducing agent and added to enhance the NO reduction efficiency. However, some poisonous gas like HCN, HCHO or N 2 O might appear as intermediate by-products and cause secondary emission [14][15][16]. Besides photo-SCR, NO photocatalytic oxidation is mainly reported to be the major process in NO photocatalytic removal, in 6 which NO was directly oxidized into NO 3 - …”

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. − …”

Photocatalytic Oxygen Transfer as an Innovative Route for N2O Upgrading**

“…The formation of radical intermediates was also corroborated by performing the reaction in the presence of radical scavengers (Table S6 and Figure S10). This radical anion compound (N 2 O⋅ − ) can reversibly adsorbed on Ag + , with formation of Ag‐N 2 O complex [Equation (3)] as already reported over a Ag + /ZSM‐5 catalyst [37] . Then, transfer of oxygen from the adsorbed N 2 O (N 2 O ads ) on silver to the phosphine occurs on the hole site, to produce the corresponding oxide, with release of N 2 from nitrous oxide and regeneration of the silver active species [Equation (4)].…”

“…Catalysts based on zeolites [18][19][20][21][22] or titanium dioxide [23][24][25] supports have been described for N 2 O photodecomposition with different metals as active species (copper, [18,19,25] lead, [20] silver, [21,[24][25][26] titanium, [22] cerium [23] ), without [18,19,21,23,24] or with a sacrificial reducing agent for N 2 O (propane, [20] carbon monoxide [22] or methanol [25,26] ). Nevertheless, no direct strategy describes selective photooxidation of an organic compound in solution by oxygen transfer from N 2 O, thus upgrading this industrial waste as a clean oxygen donor to produce high value-added compounds (Figure 1).…”