الفهرس 
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Abstract
Sodium titanate nanotubes are mainly prepared by hydrothermal process, in which TiO2 powder reacts with NaOH at certain conditions to form the desired nano tubes. Increasing the yield of nanomaterials using the same reactor size will greatly improve the production process by saving time, energy, and efforts. This work was designed to make-use of this excess amount of NaOH to enable the tubular form formation.
The prepared nanotubes were characterized by X-ray powder diffraction, High- resolution transmission electron microscopy, Fourier-Transform infrared spectroscopy and BET-Surface area analysis. The adsorption capacity of these nanotubes was tested against three commonly used dyes; Methyl orange, crystal violet and Thymol blue.
More than 50 gram of sodium titanate nanotubes were prepared using simple hydrothermal method. Nanotubes showed great affinity towards crystal violet and lower activity towards Methyl orange and Thymol blue, where they achieved more than 90% removal efficiency under different experimental conditions. This improved synthesis will reduce the total cost of nanomaterials production, and subsequently the treatment process, since titanate nanotubes are used in adsorption and photocatlysis processes.