Three-Dimensional CuO/TiO Hybrid Nanorod Arrays Prepared by Electrodeposition in AAO Membranes as an Excellent Fenton-Like Photocatalyst for Dye Degradation.

Three-dimensional (3D) CuO/TiO hybrid heterostructure nanorod arrays (NRs) with noble-metal-free composition, fabricated by template-assisted low-cost processes, were used as the photo-Fenton-like catalyst for dye degradation. Here, CuO NRs were deposited into anodic aluminum oxide templates by electrodeposition method annealed at various temperatures, followed by deposition of TiO thin films through E-gun evaporation, resulting in the formation of CuO/TiO p-n heterojunction. The distribution of elements and compositions of the CuO/TiO p-n heterojunction were analyzed by EDS mapping and EELS profiles, respectively.