Research Article

Highly Efficient Photocatalysis by Zinc Oxide-Reduced Graphene Oxide (ZnO-rGO) Composite Synthesized via One-Pot Room-Temperature Chemical Deposition Method

Figure 2

Scanning electron microscopy images of the surfaces of (a) graphene oxide (sample GO), (b) zinc metal, (c), sample ZG2, and (d) sample ZG5. The scale bars under each of the letters for (a) and (b) are 2 micrometers, while for (c) and (d) are 1 micrometer, in lengths.