Assembling of Copper Nanoparticles in Graphene Quantum Dots Functionalized by Biowaste for In Situ Electrochemical Detection of Hydrogen Peroxide

Hydrogen peroxide (H2O2) is a very simple molecule in nature but has been widely used in pharmaceutical, clinic, environmental, mining, textile, paper, food manufacturing and chemical industries because of its strong oxidizing and reducing properties [1, 2]. This work describes a convenient and effective strategy to construct a highly sensitive amperometric biosensor for the detection of H2O2 based on copper nanoparticles in graphene quantum dots functionalized by biowaste (Chicken feet yellow membrane) nano composite (Cu/ CFYM/GQDs/GCE).