Synthesis of Carbon-doped TiO2 Nanotube Arrays and Their Application for Photocatalysis

Abstract

Abstract Carbon-doped TiO2 Nanotube Arrays (CDTNAs) are synthesized via a facile method consists of electrochemical anodization and annealing in Ar atmosphere. Since the existence of residual ethylene glycol (EG) adhering to the walls of as-anodized TNAs, the EG can serve as carbon sources and subsequently avoids the employment of extrinsic carbon precursors. The properties of CDTNAs are investigated by X-ray diffraction (XRD), energy dispersive spectrometer (EDS), scanning electron microscope (SEM). Further, the photocatalytic performance of CDTNAs is significantly enhanced owing to the introduction of carbon. It is expected that the CDTNAs could be a promising candidate acting as an effective photocatalyst.