Facile synthesis and characterization of functionalized, monocrystalline rutile TiO2 nanorods

被引:115
作者
Tahir, Muhammad N.
Theato, Patrick
Oberle, Patrick
Melnyk, Gennadij
Faiss, Simon
Kolb, Ute
Janshoff, Andreas
Stepputat, Michael
Tremel, Wolfgang
机构
[1] Johannes Gutenberg Univ Mainz, Inst Inorgan Chem, D-55099 Mainz, Germany
[2] Johannes Gutenberg Univ Mainz, Inst Organ Chem, D-55099 Mainz, Germany
[3] Johannes Gutenberg Univ Mainz, Inst Phys Chem, D-55099 Mainz, Germany
关键词
D O I
10.1021/la052664y
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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 degrees 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 < 3. The surface functionalization was analyzed by IR and H-1 NMR, confirming the presence of dopamine on the surface. The surface amine groups can be tailored further with functional molecules such as dyes. Confocal laser scanning microscopy (CLSM) was used to characterize the binding of the fluorescent dye 4-chloro-7-nitrobenzofurazan (NBD) to the functionalized surface of the TiO2 nanorods.
引用
收藏
页码:5209 / 5212
页数:4
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