Titanium oxide nanotube arrays prepared by anodic oxidation

Abstract

Titanium oxide nanotubes were fabricated by anodic oxidation of a pure titanium sheet in an aqueous solution containing 0.5 to 3.5 wt% hydrofluoric acid. These tubes are well aligned and organized into high-density uniform arrays. While the tops of the tubes are open, the bottoms of the tubes are closed, forming a barrier layer structure similar to that of porous alumina. The average tube diameter, ranging in size from 25 to 65 nm, was found to increase with increasing anodizing voltage, while the length of the tube was found independent of anodization time. A possible growth mechanism is presented.

Reinforcement of flowable dental composites with titanium dioxide nanotubes

“…1.1). Titania nanotubes (n-TiO 2 ) can be fabricated using several techniques, including the assisted-template method [27], sol-gel method [28], electrochemical anodic oxidation method [29] and hydrothermal treatment [30]. …”

Empirical kinetics for the growth of titania nanotube arrays by potentiostatic anodization in ethylene glycol

“…The physical consistency has to be aligned with some growth mechanism. There is controversy around this matter and several different mechanisms have been proposed to explain the formation of titania nanotube arrays: 1) field assisted dissolution [21], 2) plastic flow [19], and 3) dehydration of titanium hydroxides [5].…”

Electrodeposited conductive polymers for controlled drug release: polypyrrole

“…Metal oxide nanotubes, such as nanotubular titania (TiO 2 ), which were discovered in the 1990s, are non-toxic and potentially useful materials for many applications, including biomedical ones [128][129][130] and are thermally stable and corrosion resistant [131][132][133]. They have the same advantages associated with scale that are found in carbon nanotubes, and unlike carbon nanotubes, they can be manufactured at low cost by hydrothermal, electrochemical and surfactant template techniques, [132,134,135] This makes PPy/TiO2 nanocomposites a good candidates for drug delivery systems [131].…”