Mesoporous titanium dioxide and preparation method thereof and application thereof
A kind of mesoporous titanium dioxide, uniform technology, applied in the field of medicine, to achieve the effect of good chemical stability and physiological compatibility, low density, high specific surface area
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Embodiment 1
[0036] Accurately take 15.8g of F127 and add it to 400ml of absolute ethanol to dissolve it completely, add 9.25ml of isopropyl titanate and 3.2ml of double distilled water, keep stirring at room temperature for 40min and then stand still for 24h, centrifuge to collect the precipitate, and remove the precipitate Add an appropriate amount of absolute ethanol to the centrifuge tube, stir gently, collect the precipitate by centrifugation, repeat 3 times, dry the precipitate in a 50°C oven for 24 hours, put the dried sample in a conical flask, add 200ml of absolute ethanol , stirred in a water bath at 70°C for 2 hours, centrifuged to collect the precipitate, put the precipitate into the Erlenmeyer flask, repeated the above operation for a total of 3 times, dried the precipitate in a 50°C oven for 24 hours, and put the dried sample into the Erlenmeyer flask After cleaning, the precipitate was dried in an oven at 50°C for 24 hours, and the surfactant F127 was removed by repeated wash...
Embodiment 2
[0038] Accurately take 9.25ml of isopropyl titanate and 1.6ml of potassium chloride solution and add it to 400ml of absolute ethanol, keep stirring at room temperature for 40min and then stand still for 24h, centrifuge to collect the precipitate, put the precipitate into a centrifuge tube and add an appropriate amount of no Gently stir after water and ethanol, centrifuge to collect the precipitate, repeat 3 times, dry the precipitate in an oven at 50°C for 24 hours, and obtain mesoporous spherical titanium dioxide after drying.
Embodiment 3
[0040] Accurately take 15.8g of F127 and add it to 400ml of absolute ethanol to dissolve it completely, add 9.25ml of isopropyl titanate and 3.2ml of double distilled water, keep stirring at room temperature for 40min and then stand still for 24h, centrifuge to collect the precipitate, and remove the precipitate Add an appropriate amount of absolute ethanol to the centrifuge tube, stir gently, collect the precipitate by centrifugation, repeat 3 times, and finally dry the precipitate in a 50°C oven for 24 hours, and calcinate the dried sample at 400°C for 4 hours to remove surface activity. Agent F127 to obtain spherical mesoporous titania.
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