Green Synthesis of CoFe2O4@g-C3N4 Hybrid Nanocomposite for Electrochemical Detection of Morphine in Biological Fluids
摘要
Here, okra extract was successfully utilized for the green synthesis of magnetic CoFe2O4 nanoparticles, which were subsequently decorated onto a g-C3N4 matrix. Characterization techniques such as FT-IR, XRD, SEM, and EDX confirmed the successful formation of the CoFe2O4@g-C3N4 nanocomposite. The bio-synthesized materials were used to modify a glassy carbon electrode (GCE), resulting in the CoFe2O4@g-C3N4/GCE sensor, which demonstrated excellent electro-catalytic performance for morphine detection. According to DPV, the developed sensor exhibits a wide dynamic range (0.01–250 µM), and a low limit of detection (3 S/m, 94.017 nM). The prepared electrode combines strong selectivity with reliable reproducibility and stability. Further, its successful performance in real biological samples highlights its promise for practical analytical applications.