One-Dimensional Titanium Dioxide Nanomaterials: Nanotubes

Abstract

4.1 Doping of anodic TiO 2 nanotubes 4.2 Doping of hydrothermal TiO 2 nanotubes 4.3 Self-doping/Magneli phases/black titanium 4.4 Conversion of tubes 4.5 Particle decoration, heterojunctions, charge transfer catalysis 4.6 Self-assembled monolayers (SAMs) 5. Applications of TiO 2 nanotubes 5.1 Solar cells 5.2 Photocatalysis 5.3 Ion-intercalation (insertion) devices

Efficient Photocatalytic H2 Evolution: Controlled Dewetting–Dealloying to Fabricate Site‐Selective High‐Activity Nanoporous Au Particles on Highly Ordered TiO2 Nanotube Arrays

“…Such a straightforward concept -the illumination of a cheap semiconductor to generate charge carriers that then can be exploited to directly react with water and form H 2 -is currently envisaged as a promising and direct path to synthesize H 2 as an energy carrier of the future. [2][3][4][5][6] Besides using an external electrical circuit and an illuminated flat TiO 2 electrode (i.e., photoelectrochemistry), [7] another possible approach is the use of TiO 2 nanoparticles (NPs) in the form of suspensions for photocatalysis under "open-circuit" conditions (i.e., without applying an external voltage). However, under these conditions, TiO 2 is not effective in photogenerating H 2 in the absence of a co-catalyst (i.e., charge carrier recombination dominates).…”

“…[4,16] Nevertheless, another feature of the nanotube geometry is that it allows for an exceptionally defined self-ordered arrangement of catalyst particles on the surface. Conventionally, when M@TiO 2 systems are fabricated on compact or nanoparticulate TiO 2 films, the deposition of metal particles is fairly inhomogeneous, [15] and common techniques provide a relatively low degree of control for optimizing the geometry, size and distribution of the metal particles.…”

Cytotoxic and Bacteriostatic Activity of Nanostructured TiO2 Coatings

“…In the last decade great interest arose from the field of synthesis and applications of nanostructured TiO 2 materials (Kulkarni et al, 2015). In this regard examples of applications are, for instance, dyesensitized solar cells, sensors, rechargeable batteries, electrocatalysis, self-cleaning and antibacterial surfaces, photocatalytic cancer treatment and dental implants surface modification to prevent infections (Petrini et al, 2006;Seo et al, 2007;Roy et al, 2011;Cai et al, 2013;Lee et al, 2014;Behzadnia et al, 2014). An interesting application of TiO 2 is related to its use in coating different surfaces such as glass and tiles, providing them with deodorant, bactericidal (Pleskova et al, 2011;Yu et al, 2013) and self-cleaning (Xi et al, 2012;Khataee et al, 2013) activity once exposed to the UV light (Cai et al, 2013).…”

Self-organized double-wall oxide nanotube layers on glass-forming Ti-Zr-Si(-Nb) alloys

“…The alloys were anodized at 60 V for 6 hours. At the beginning of the anodization process, the potential was swept from 0 V to [12,14]. Fig.…”

“…It is well-known that the anodization of Ti leads to the formation of TiO 2 nanotubes when using fluoride containing electrolytes [11][12][13][14].…”