We report here an high specific surface area activated carbon loaded with hemin (H-PAC) synthesized by one-step in situ pyrolysis of paper. As the carrier of hemin, paper-derived activated carbon (PAC) showed high specific surface area (3157 m2 g-1) after optimization. The surface concentration of hemin in the material was effectively increased. In particular, PAC had a unique interconnected porous structure, which can be used as a continuous conductive framework and provide more active sites. Hemin maintained peroxidase-like activity and showed superior synergistic effect with PAC via pyrolysis, displaying rapid redox characteristics. Under optimized conditions, the composite exhibits high electro–catalytic activities for H2O2 reduction with a low detection limit of 0.087 μM, and high selectivity.
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