Preparation of AuNPs/GQDs/SiO₂ Composite and Its Catalytic Performance in Oxidation of Veratryl Alcohol

Figure 5

UV-vis spectra of aqueous solutions containing veratryl alcohol after being subjected to the catalytic oxidation reaction for various durations. Reaction conditions: 2 μmol of veratryl alcohol, 20 μmol of hydrogen peroxide, 1 mL of deionized water, 2 mg of composite, and temperature of 50°C.