Figure 4

The Mulliken population charges on Ag, O and P atoms, which have changed in the Ag3PO4(100) surface.
(a–e) are for undoped, BC-, NC-, SC- and PC+VC-doped GR/Ag3PO4(100) composites, respectively. The blue digits represent the changed Mulliken population charges on Ag atoms near the interface. The varistion of Mulliken population charges on P atoms shows that the dopants in GR sheets change the charge redistribution of the Ag3PO4(100) surface.