Nitrogen doped TiO2 Nanotubes (TIO2, Purity: 99.9%, APS: <80nm)

Nitrogen-doped TiO2 Nanotubes

Introduction

Nitrogen-doped titanium dioxide (TiO₂) nanotubes are a class of nanomaterials that have been modified by incorporating nitrogen (N) atoms into the titanium dioxide (TiO₂) crystal structure, typically in the form of nitrogen substitutions for oxygen or as nitrogen-containing functional groups at the surface. TiO₂ itself is a widely studied semiconductor material known for its photocatalytic properties, chemical stability, and non-toxicity, making it highly suitable for environmental, energy, and biomedical applications. However, the photocatalytic efficiency of TiO₂ is limited by its wide bandgap, which only allows it to absorb ultraviolet (UV) light.

To address this limitation, nitrogen doping has been introduced as a method to modify the electronic properties of TiO₂. Nitrogen atoms act as electron donors, narrowing the bandgap and shifting the absorption spectrum of TiO₂ into the visible light range. This modification enhances the photocatalytic activity of TiO₂ under visible light and improves its performance in various applications, particularly those related to energy production, environmental remediation, and self-cleaning surfaces.

The structure of nitrogen-doped TiO₂ nanotubes combines the benefits of the TiO₂ nanotube morphology—such as high surface area, enhanced adsorption, and easy accessibility of active sites—with the improved photocatalytic properties afforded by nitrogen doping. The resulting material exhibits enhanced photocatalytic activity, better charge separation, and improved stability, making it a promising candidate for a wide range of advanced technological applications.