High-efficiency photo-oxidation of thioethers over C₆₀@PCN-222 under air

Abstract

For the first time, fullerene (C60) was used to enhance the photogenerated electron–hole separation of MOFs as a catalyst and showed high catalytic activity in the photocatalytic oxidation of thioether in air.

Z‐Scheme In2S3/NU‐1000 Heterojunction for Boosting Photo‐Oxidation of Sulfide into Sulfoxide under Ambient Conditions

“…O 2 − ) and singlet oxygen ( 1 O 2 ) on the reaction system were discussed. We chose 1,4‐benzoquinone (BQ) and β‐carotene [31] to quench . O 2 − and 1 O 2 , respectively.…”

“…More importantly, the meso‐ and micro channels of MOFs during the heterogeneous catalytic process can also enrich the substrate, shorten the transmission distance and increase the reaction rate, even possess exceptional chemo‐, size‐, shape‐, and enantioselectivity [28] . Numerous MOFs‐based heterojunction semiconductors‐such as Ir(III)‐Zr(IV) MOFs, [29] Sn IV ‐porphyrin‐based MOF, [30] C 60 @PCN‐222, [31] MoO(O 2 ) 2 @En/MIL‐100(Cr) [32] ‐were reported as superior catalysts for aerobic photo‐oxidation of sulfide into sulfoxide.…”

Recent applications of porphyrins as photocatalysts in organic synthesis: batch and continuous flow approaches

“…Singlet oxygen can be considered a very versatile reagent in organic synthesis since it promotes many mild oxidation processes instead of combustion [23,[57][58][59][60]. This excited state form of molecular oxygen can be produced by chemical and photochemical methods, with this second the easier and most costcompetitive manner [61,62].…”

Recent Development of Porous Porphyrin‐based Nanomaterials for Photocatalysis

“…[31] Recently, a new type of heterogeneous photocatalyst was developed by mixing C 60 and PCN-222 (Figure 2e). [14] Owing to the π-π interactions between C 60 and TCPP in the PCN-222, the introduction of C 60 the PCN-222 could enhance photoinduced charge separation and transfer and efficiently suppressed the electron-hole recombination, which accelerated the catalysis of organic reactions. The formed heterogeneous composite C 60 @PCN-222 showed great catalytic behavior including high conversion and selectivity in the oxidation of primary thioethers to sulfoxides under visible light (Figure 2f).…”

“…In order to improve the electron‐hole separation, the heterogeneous photocatalysts consisting of MOFs and graphene nanomaterials also attracted great interest [31] . Recently, a new type of heterogeneous photocatalyst was developed by mixing C 60 and PCN‐222 (Figure 2e) [14] . Owing to the π‐π interactions between C 60 and TCPP in the PCN‐222, the introduction of C 60 the PCN‐222 could enhance photoinduced charge separation and transfer and efficiently suppressed the electron‐hole recombination, which accelerated the catalysis of organic reactions.…”