Nanometer Titanium Dioxide Particle and Size ControlTechnology by Sol-Gel Mothod

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Nanometer Titanium Dioxide Particle and Size ControlTechnology by Sol-Gel Mothod
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Abstract:

Nanometer titanium dioxide particles have been prepared by the sol-gel method,in which butyl titanate

as precursor,ethylene glycol as a chelating agent. And the glycol of titanium salt concentration,pH value,temperature

on the influence of the particle size titanium dioxide were studied. Moreover,the structure and morphology of nanometer

titanium dioxide particles were characterized by infrared spectroscopy and SEM. The experimental results show

that uniform size distribution of nanoparticles titanium dioxide can be prepared by sol-gel method. Using ammonium nitrate

could effectively prevent the titanium dioxide nanoparticles reunion. When pH value is 2 to 3, the temperature is

20℃ to 40℃,the concentration of titanium salt of ethylene glycol in the acetone is 0. 03 M,the diameter of titanium

dioxide nanoparticle is 150 nm;the concentration of titanium salt of ethylene glycol in the acetone is 0. 05 M,the particle

size is 240 nm;and when the concentration of titanium salt of ethylene glycol in the acetone is 0. 07 M,the diameter

of titanium dioxide nanoparticles can reach to 600 nm.

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Online: November 28,2016
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