Fig. 8.. Comparison of different catalyst H2 production activity of CN, CNC, CNN-15, and CNNC-15 (a). Comparison of hydrogen production performance of composite with different nickel content (b) and copper content (c). Effect of different pH triethanolamine aqueous to the photocatalytic property of CNNC-15 (d). Stability testing of CNNC-15 composite in this system (e). Apparent quantum efficiency (QE) of the CNNC-15 (f).
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