Research Article

Synthesis, Characterization, and Photocatalytic Activity of Cu-Doped MgO Nanoparticles on Degradation of Methyl Orange (MO)

Figure 5

(a) UV-Vis diffuse reflectance and (b) Kubelka–Munk function versus energy plots of undoped MgO and Cu-doped MgO NPs calcined at 500°C.
(a)
(b)