Effect of Codoping Zinc Oxide Nanoparticles with Sulfur and Nitrogen on Its Energy Bandgap, Antioxidant Properties, and Antibacterial Activity

Figure 4

FTIR bands of bare and doped quantities of (a) ZnO-NPs, (b) 4% S-ZnO, (c) 6% N-ZnO, and (d) S4-N6-ZnO.

(a)

(b)

(c)

(d)