Fig. 2From: The Influence of Materials, Heterostructure, and Orientation for Nanohybrids on Photocatalytic ActivityThe top view SEM image of ZnO nanorods (a), ZnO/Cu2O (pH 12, 20 min) heterojunction (b), Cu2O (pH 12, 20 min) (c), and Cu2O (pH 12, 20 min)/ZnO heterojunction (d)Back to article page