A review on the Fabrication and material properties of TiO2 nanotube arrays by anodization

We review the fabrication and properties of TiO2 nanotube arrays made by anodic oxidation of titanium in fluoride-based electrolytes. The materialarchitecture has proven to be ofgreat interest for use in water photoelectrolysis and photocatalysis.. We examine the ability to fabricate nanotubearrays of different shape(cylindrical, tapered), pore size, length, and wall thickness by varying anodization parameters including electrolyteconcentration, pH, voltage, andbath temperature, with fabrication and crystallization variables discussed in reference to a nanotube array growth model. We review efforts to lower the band gap of the titania nanotubes by anionic doping. The article concludes by examining various practical applications of theremarkable material architecture, including its use for water photoelectrolysis.

کلیدواژه ها:

Nanotube array ، TiO2 ، Titania ، Photoelectrolysis ، Water photolysis