Preparation of Self-organized Titania Nanotubes Electrode and Its Electrochemical Properties

Abstract

A new type TiO2 electrode was fabricated by forming nanotube-like TiO2 film on a Ti sheet in an anodic oxidation process. The micro-morphology and phase structure of it were analyzed by FE-SEM and XRD, respectively. The average diameters of these nanotubes rang from 80 to 150nm. The evidences from the electrochemical station indicated that the TiO2 nanotubes electrode had higher oxygen-librating potential than the conventional TiO2 film electrode. And the experiments of photoelectrocatalytic degradation of 4-chlorophenol (4-CP) with this TiO2-NTs array electrode as working electrode were carried out.