Green facile synthesis of biowaste-converted Cu-Cu2O/BPC for non-enzymatic hydrogen peroxide sensing

Despite the rapid development of non-enzyme sensors, there is an urgent need for a sensor that can produce sensing materials without the use of reducing agents. Herein,a green biowaste conversion strategy is elabo-rately developed to fabricate advanced Cu-based sensing material, in which the Cu-Cu2O/BPC-1 was obtained by facilely carbonizing the bamboo powder soaked with Cu (NO3)2 without using any reduction agents. Particularly, the Cu-Cu2O particles were uniformly anchored on the mesoporous carbon plate. Profited from the synergistic effect between biomass carbon plate and Cu-Cu2O particles, electrochemical measurements showed that the prepared Cu-Cu2O/BPC-Y/GCE sensor demonstrated prominent catalytic activity for H2O2. In particular, the Cu-Cu2O/BPC-1/GCE sensor displayed a wide linear range (1-8330 mu M), a low detection limit(0.35 mu M) (S/N = 3), and excellent selectivity, reproducibility and stability. This work provides a cost-effective and environmentally friendly strategy to fabricate the non-enzymatic H2O2 sensor.

Automated summary

Despite the rapid development of non-enzyme sensors, there is an urgent need for a sensor that can produce sensing materials without the use of reducing agents. In this study, a green biowaste conversion strategy was developed to fabricate advanced Cu-based sensing material, which showed excellent catalytic activity and sensing performance.