Research Article

-C3N4–Co3O4 Z-Scheme Junction with Green-Synthesized ZnO Photocatalyst for Efficient Degradation of Methylene Blue in Aqueous Solution

Figure 3

The SEM image of (a) Co3O4, (b) ZnO, (c) g-C3N4, (d) GZC-3 composite, and (e) EDX for the g-GZC-3 composite.