Photoelectrocatalytic Degradation of Methylene Blue Over M-CNT/TiO₂ (M=Y, Ag, and Pt) Composite Electrodes

摘要

In this study, carbon nanotubes modified with different metal ions (M=Y, Ag and Pt) were employed for the fabrication of M-CNT/TiO₂ electrodes. The fabricated electrodes were characterized by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray and photoelectrocatalytic activity. It was found that the photoelectrocatalytic degradation efficiencies of methylene blue solution over M-CNT/TiO₂ electrodes were better than that of nonmetal ion-treated CNT/TiO₂ electrodes. In comparison of the three M-CNT/TiO₂ composites, the photoelectrocatalytic degradation efficiency (76%) of Ag-CNT/TiO₂ for MB solution was the best results under visible light.