Figure 2
From: Graphene/fluorescein dye-based sensor for detecting As(III) in drinking water
(a) Job’s plot for optimum stoichiometric complex formation between rGO and FL. Job’s plot provides qualitative and quantitative details about the stoichiometry of association between reduced graphene oxide (rGO) and ligand (Fluorescenc) to form rGO–FL complex contain 0.7 mL of 1 mmol rGO and 1 mmol of fluorescein. The complex formation between rGO and FL was studied using fluorescence emission at 510 nm (b) Nitrogen adsorption–desorption isotherms of rGO and rGO–FL particles (c) SEM micrograph (d) AFM micrographs of rGO–FL nanoparticles.
