Fig. 3: Photoresponse and photocatalytic performance. | Nature Communications

Fig. 3: Photoresponse and photocatalytic performance.

From: A cluster-nanozyme-coenzyme system mimicking natural photosynthesis for CO2 reduction under intermittent light irradiation

Fig. 3

a UV-Vis diffuse reflectance spectra of Cu6, Cu6-Co, Cu6-Ni, Cu6-Cobpy, Cu6-Mnbpy and Cu6-Cotpy. b Average CO and CH4 production rates in photoreduction CO2 on Cu6-Co, Cu6-Ni, Cu6-Cobpy, Cu6-Mnbpy and Cu6-Cotpy with visible-light irradiation (λ ≥ 420 nm) on a CO2-saturated ACN solution containing 10 mg of photocatalysts, 0.05 M BIH (electron donor), and 0.03 M PhOH (proton source), in comparison with pristine Cu6 cluster and other control experiments under the same conditions. c GC-MS analysis of 13CO (m/z = 29) produced by the photoreduction of 13CO2 over Cu6-Cotpy. d An action spectrum for CO production by Cu6-Cotpy along with the absorption spectra of Cu6-Cotpy and Cu6. e Light-driven catalytic durability over Cu6-Cotpy. Each cycle takes 47 h. f Comparison of the photoreduction CO2 performance of Cu6-Cotpy with noble-metal-free non-molecular systems reported in the recent literature listed in Supplementary Table 15. The error bars represent the standard deviation of the experiments.

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