Prussian Blue nanoparticles supported on a hybrid platform of graphene oxide and cubic silsesquioxane applied to Diuron detection

•Pesticides are used due to its efficiency in controlling weeds and grasses.•Diuron has carcinogenic and genotoxic effect, that can lead to damage to human organs.•Diuron is the target of investigation in water, especially in urban supply systems.•Electroanalytical techniques have been used to detect water contaminants.•Graphene oxide chemically modified, can lead to improvement in detection systems.