Synthesis and catalytic performance of TiO2 nanotubes-supported copper oxide for low-temperature CO oxidation

Copper oxide supported on TiO2 nanotubes (CuO/TiO2NTs) are prepared by an impregnation method. The prepared materials are characterized with X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectra (XPS) and temperature-programmed reduction (TPR). Catalytic performance of the supported copper oxide for low-temperature CO oxidation is studied by using a microreactor-GC system. Obtained results indicate that CuO/TiO2NTs have high catalytic activity for CO oxidation.