Preparation and characterization of nanosized TiO2 powders from aqueous TiCl4 solution

Preparation and Photocatalytic Activity of TiO2-Wrapped Cotton Nanofiber Composite Catalysts

“…5 b, the diffraction peaks at 25.2°, 36.9°, 37.8°, 38.6°, 48.0°, 53.9°, and 55.1° were related to the diffractions of the (101), (103), (004), (112), (200), (105), and (211) planes of anatase TiO2 (JCPDS No. 21-1272), respectively (Zhang et al 1999;Zhang et al 2000;Bae et al 2009;Li and Zeng 2011). The crystalline phase of the calcined samples showed a slightly stronger diffractive intensity with the increase of temperature, i.e., the higher temperature, then the stronger diffractive intensity.…”

Crystallite phase-controlled preparation, characterisation and photocatalytic properties of titanium dioxide nanoparticles

“…However, the presence of SO there is a weak steric effect for Cl À because of its small radius. Meanwhile, the addition of Cl À generally favours the formation of rutile crystallites [47][48][49]. As was mentioned, TiO 2 is known to possess three crystalline structures, which include rutile, anatase and brookite.…”

“…These chains are then interlinked by sharing corner oxygen atoms to form a three-dimensional framework, whereas in anatase, the three-dimensional framework is formed only by edge-shared bonding among TiO 6 octahedrons. It means that octahedra in anatase share four edges and are arranged in zigzag chains along [44][45][46][47][48].…”

One-step synthesis of titanium oxide nanocrystal- rutile by hydrothermal method

“…Its energy band gap (~3.06eV), as a semiconductor, is slightly lower than anatase (~3.23eV) [5]. Although rutile is considered to be less active photocatalytic compared to anatase which has dynamic charge carrier, rutile phase can be active and inactive depending on the condition of preparation [6]. Apart from having suitable band gap energy, TiO 2 also possesses advantages, such as highly stable in aqueous media and non-toxic like other photocatalytic materials, such as GaAs, PbS, CdS and etc.…”