Abstract
A one-step method for the fabrication of Fe–C–N-codopedTiO2 nanotubes by electrochemical anodization is reported. The proposedmethod is both simple and efficient. The prepared samples were annealed at550 °C for 3 h. The resulting nanotubes were characterized by SEM, XRD, XPS, EDX and UV–visspectrophotometer. The results showed that the average tube diameter of the nanotubeswas 70 nm and wall thickness was 20 nm and the average tube length was 2.4 µm. Thedoped TiO2 nanotubes exhibited strong absorption in the visible-light region. The maximumphotocurrent efficiency measured under solar simulator was 2.7%.
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