Black titanium dioxide (TiO2) nanomaterials

Abstract

In the past few decades, there has been a wide research interest in titanium dioxide (TiO₂) nanomaterials due to their applications in photocatalytic hydrogen generation and environmental pollution removal. Improving the optical absorption properties of TiO₂ nanomaterials has been successfully demonstrated to enhance their photocatalytic activities, especially in the report of black TiO₂ nanoparticles. The recent progress in the investigation of black TiO₂ nanomaterials has been reviewed here, and special emphasis has been given on their fabrication methods along with their various chemical/physical properties and applications.