Fig. 2From: Three-Dimensional CuO/TiO2 Hybrid Nanorod Arrays Prepared by Electrodeposition in AAO Membranes as an Excellent Fenton-Like Photocatalyst for Dye Degradationa Top view and b cross-section SEM images of AAO before electrodeposition. c Top view and d cross-section view SEM images of AAO after CuO electrodeposition (scale bar, 1 μm)Back to article page