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ANATASE TYPE TiO2 NANORODS AND ITS PREPARATION METHOD
ANATASE TYPE TiO2 NANORODS AND ITS PREPARATION METHOD
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机译:锐钛型TiO2纳米粉体及其制备方法
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摘要
Provided is a process which includes slowly adding dropwise chilled distilled water to titanium tetrachloride to prepare solution of titanium oxychloride; adding basic solution thereto to maintain pH of the titanium oxychloride solution within a range from 3.5 to 4, thereby providing a suspension of titanium oxyhydroxide precipitate; adding basic solution thereto to adjust the suspension of titanium oxyhydroxide precipitate to be weakly basic, and heating and stirring the mixture at 80 to 100° C.; isolating and collecting dihydroxy-oxotitanium from the heated and stirred suspension of titanium oxyhydroxide precipitate, and washing it with weakly basic aqueous solution; and adding distilled water and 20 to 500 folds of hydrogen peroxide on the basis of 1 mole of Ti4+ in titanium oxyhydroxide to the washed titanium oxyhydroxide, and heat-treating the mixture at a temperature of 90 to 100° C. for 1 to 7 days to prepare titania nanorods having the mean length of 100 nm to 300 nm.
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