Figure 4

DLS size distribution pattern of GQD (A), iron nanoparticles (B), Fe–Mn nanocomposites (C), and Fe–Mn nanocomposites doped GQD (D).

DLS size distribution pattern of GQD (A), iron nanoparticles (B), Fe–Mn nanocomposites (C), and Fe–Mn nanocomposites doped GQD (D).