Colorimetric detection of cascade reaction (Fig.S16)

(a) Time-dependent absorption spectra evolution of H2O2 in glucose solution (0.1 M) with AKCN. (b) The calibration of absorbance at 551 nm for H2O2 detection versus the concentration of glucose in quartz cell after 20 min irradiation. Experimental condition: the phosphate buffer solution (0.1 M, pH 7) in quartz cell containing glucose solution (0.1 M) and AKCN (0.5 mg mL) under visible light irradiation (λ ≥ 420 nm) with continuous O2-purging and stirring. The error bar represents the standard deviation from the repeated experiment after three times