Synthesis of {010}-faceted cuboid-like anatase TiO2 nanorods by the hydrothermal method

This study reports a facile route to synthesise {010} facet-dominated anatase TiO₂ nanorods with biconcave ends on the titanium substrate in the solution containing urea by the hydrothermal method. X-ray diffraction, field emission scanning electron microscopy and high-resolution transmission electron microscopy were employed to characterise the as-prepared samples. The research regarding reaction time, the amount of urea added, reaction temperature and volume of H₂O₂ added were employed to investigate the morphology evolution of the samples. The formation of cuboid-like anatase TiO₂ nanorods was because of agent-capping and etching effect. The results indicated that urea played a key role in morphology control synthesis in addition to adjusting solution pH to affect deposition of film.