Synthesis, Characteristics of Titan Dioxide Nanotube and Photocatalytic Decomposition of Ethanol

Abstract

In this study, N-doped TiO₂ nanotubes material was synthesized from commercial TiO₂ by hydrothermal synthesis in concentrated sodium solution with high temperature and pressure conditions. The morphology, crystalline phase, composition were characterized by the modern physicochemical techniques such as X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS) and ultraviolet-visible spectrophotometry (UV-Vis). The results showed that TiO₂nanotubes have the diameter of 10-12 nm and the lengthabout 150 nm witha high specific surface area. The photocatalytic activity of this material was evaluated in terms of photodegradation of ethanol under ultraviolet light, it showed that the photocatalytic activity of nanotubes is higher than nanoparticles and the activity is enhanced when there is nitrogen doping.

Keywords

Titan dioxide, nanotubes, VOCs, hydrothermal, photocatalysis

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