Fig. 7: Photocatalytic H2 production by N-CNS. | Nature Communications

Fig. 7: Photocatalytic H2 production by N-CNS.

From: A metal-free photoactive nitrogen-doped carbon nanosolenoid with broad absorption in visible region for efficient photocatalysis

Fig. 7

a Schematic illustration of photocatalytic H2 production by N-CNS. b H2 evolution rate of N-CNS photocatalyst at different concentrations of the hole scavenger under visible light (wine: 0.25 M Na2S and 0.35 M Na2SO3; green: 0.5 M Na2S and 0.7 M Na2SO3; orange: 0.75 M Na2S and 1.05 M Na2SO3; cyan: 1 M Na2S and 1.4 M Na2SO3;). c UV–Vis absorption spectrum of N-CNS in DMF with calculated optical bandgap. d Cycling runs of N-CNS for photocatalytic H2 evolution in the presence of 1.0 mg N-CNS photocatalyst in a 30 mL aqueous solution containing 0.75 M Na2S and 1.05 M Na2SO3 (black: cycle 1; red: cycle 2; blue: cycle 3). The error bars in b and d show standard deviation (SD).

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