Figure 3From: Effects of architectures and H2O2 additions on the photocatalytic performance of hierarchical Cu2O nanostructures SEM images of the as-obtained products fabricated at 140°C with different reaction time. (a) 4 h (S1), (b) 6 h (S2), (c) 8 h (S3), and (d) 10 h (S4) (insets are the corresponding magnified SEM images).Back to article page