Hierarchical Ni-rGO nanocomposite derived from e-waste graphite for trace-level electrochemical sensing of metronidazole
Metronidazole (MTZ) accumulation in aquatic systems presents severe environmental and public health risks, requiring sensitive trace-level monitoring techniques. Here, we report the development of an electrochemical sensor based on a reduced graphene oxide (rGO) nanocomposite decorated with nickel-containing nanophases...