Fig. 2From: Two-Solvent Method Synthesis of NiO/ZnO Nanoparticles Embedded in Mesoporous SBA-15: Photocatalytic Properties StudyWide-angle XRD patterns of (a) 20 % NiO/ZnO/SBA-15, (b) 30 % NiO/ZnO/SBA-15, and (c) 40 % NiO/ZnO/SBA-15Back to article page