May 9, 2006 - Functionalized, monocrystalline rutile TiO2 nanorods were prepared from ... of electrical and optical properties that depend on both size and.
Langmuir 2006, 22, 5209-5212
5209
Facile Synthesis and Characterization of Functionalized, Monocrystalline Rutile TiO2 Nanorods Muhammad N. Tahir,† Patrick Theato,‡ Patrick Oberle,† Gennadij Melnyk,† Simon Faiss,§ Ute Kolb,§ Andreas Janshoff,§ Michael Stepputat,§ and Wolfgang Tremel*,† Institute of Inorganic Chemistry, Institute of Organic Chemistry, and Institute of Physical Chemistry, UniVersity of Mainz, 55099 Mainz, Germany ReceiVed September 30, 2005. In Final Form: April 11, 2006 Functionalized, monocrystalline rutile TiO2 nanorods were prepared from TiCl4 in aqueous solution under acidic conditions in the presence of dopamine, followed by aging and hydrothermal treatment at 150 °C. The surface-bound organic ligand controls the morphology as well as the crystallinity and the phase selection of TiO2. The presence of monocrystalline rutile TiO2 was confirmed by X-ray powder diffraction and HRTEM investigations. The as-prepared nanorods are soluble in water at pH
