Synergetic photo-epoxidation of propylene with molecular oxygen over bimetallic Au–Ag/TS-1 photocatalysts

Recent Advances in Selective Photo-Epoxidation of Propylene: A Review

“…This result is consistent with the finding by Yoshida et al, who reported that the reaction temperature influences the selectivity to the product and is favorable toward the formation of an aldehyde [28]. In another study, Li et al also found that increasing the reaction temperature does not favor epoxidation selectivity [42]. The competition of multiple reactions toward different products might be attributed to this phenomenon.…”

“…As shown in Figure 7a, the reaction temperature has a dual action in terms of the reaction rate: (1) enhancing the desorption of products, which provides more active sites for the photocatalytic reaction; and (2) reducing the adsorption of reactants, which decreases the photocatalytic efficiency [15]. In another approach, Li et al also observed the dual relationship between the reaction temperature (323-473 K) and the photocatalytic performance for the C 3 H 6 conversion rate over an Au-Ag/TS-1 photocatalysts, as shown in Figure 7b [42].…”

“…Catalysts 2020, 10, x FOR PEER REVIEW 8 of 22 [42]. The competition of multiple reactions toward different products might be attributed to this phenomenon.…”

“…As shown in Figure 7a, the reaction temperature has a dual action in terms of the Figure 6. The selectivity to products for different temperature conditions: (a) V-Ti/MCM-41, reproduced with permission from [15]; and (b) Au-Ag/TS-1 photocatalysts, reproduced with permission from [42]. Abbreviations: propylene oxide (PO), propionaldehyde (PA), acetone (AC), acetaldehyde (AA), acrolein (AL), and ethanol (ROH).…”

Photocatalytic Performance and Degradation Pathway of Rhodamine B with TS-1/C3N4 Composite under Visible Light

“…Conventionally, TS-1 zeolite (TS-1) has been used as an industrial catalyst to promote the selective oxidation of some organic compounds, such as the hydroxylation of aromatic hydrocarbons [11], the ammoxidation of ketones [12,13], the epoxidation of olefins [14], and the oxidation of saturated alkanes [15]. Recently, TS-1 has been confirmed as a promising photocatalyst in degradation of organic dye contaminants and selective conversion of propylene [16][17][18]. Due to its wide band-gap [19], TS-1 only responds to ultraviolet light.…”