fig8
Figure 8. (A) Catalytic results of controlled experiments over the Au/CN(I) catalyst by adding different scavengers during photooxidation of HMF to DFF; (B) Plausible reaction mechanism of the photocatalytic oxidation of HMF to DFF using the Au/CN(I) catalyst; (C) Recycling test of the Au/CN(I) catalyst. Reaction conditions: HMF, 0.1 mmol; scavenger, 0.1 mmol; catalyst, 30 mg; deionized water, 100 mL; O2 flow, 10 mL min-1; Xe lamp, l = 350-780 nm; temperature, 35 °C; time, 1.5 h. HMF:
