Large-scale synthesis and characterization of fan-shaped rutile TiO2 nanostructures |
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Authors: | Miaomiao Ye Wenshou Wang Jimin Shen |
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Affiliation: | a School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China b School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China |
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Abstract: | Large-scale fan-shaped rutile TiO2 nanostructures have been synthesized by means of a simple hydrothermal method using only TiCl4 as titanium source and chloroform/water as solvents. The physicochemical features of the fan-shaped TiO2 nanostructures are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected-area electron diffraction (SAED), nitrogen absorption-desorption, diffuse reflectance ultraviolet-visible spectroscopy (UV-vis) and Fourier transform infrared spectroscopy (FTIR). Structural characterization indicates that the fan-shaped TiO2 nanostructures are composed of several TiO2 nanorods with diameters of about 5 nm and lengths of 300-350 nm. The average pore size and BET surface area of the fan-shaped TiO2 nanostructures are 6.2 nm and 59 m2/g, respectively. Optical adsorption investigation shows that the fan-shaped TiO2 nanostructures possess optical band gap energy of 3.11 eV. |
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Keywords: | Rutile TiO2 Nanostructures Hydrothermal synthesis |
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