Fig. 2From: Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co3O4/n-ZnO Heterostructuresa XRD patterns of the precursor, as-prepared pure Co3O4 and Co3O4/ZnO-35 heterostructure. b Partially enlarged view of the diffraction peaks of Co3O4/ZnO-35Back to article page