Preparation method of titanium oxide-silicon oxide composite material
A composite material, titanium oxide technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc. The effect of improving shell stability, improving stability and improving passability
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Embodiment 1
[0042] Take a clean container, add 0.83g of urea, 3.78g of cetyltrimethylammonium bromide, and 88mL of deionized water, mix well, then add 3.2g of titanium sulfate, stir for 1h; Treat for 20 hours; then wash with deionized water for 5 times, and dry at 120° C. for 12 hours to obtain titanium oxide. Then 1 g of titanium oxide, 0.57 g of octadecyltrichlorosilane, and 8 g of toluene were mixed, stirred at 40 °C for 3 h, and then the sample was dried at 120 °C for 10 h. Then mixed with 0.0012 g tetraethyl orthosilicate and 0.83 g ethanol, the equivalent volume saturated adsorption capacity of 1 g titanium oxide to ethanol is 0.83 g ethanol / 1 g titanium oxide. Then the sample was placed in a tray above 98g of ethanol solution, the sample and the solution were in a non-contact state, and treated at 45°C for 2h. Then the sample was placed in a tray above a solution composed of 12.9g tetraethylammonium hydroxide, 102.2g ethanol, and 100g water. The sample and the solution were in a n...
Embodiment 2
[0044] Take a clean container, add 0.6g of urea, 1.8g of cetyltrimethylammonium bromide, and 45mL of deionized water and mix evenly, then add 3g of titanium sulfate, stir for 0.2h; then put it into the reaction kettle for 110 ℃ for 30 hours; then washed with deionized water for 5 times, dried at 120 ℃ for 12 hours to obtain titanium oxide; then mixed 1 g of titanium oxide, 1.5 g of octadecyl trichlorosilane, and 11 g of toluene, and stirred at 50 ℃ for 4 h, and then dry the sample at 120°C for 10 h. Then mixed with 0.005 g tetraethyl orthosilicate and 0.83 g ethanol, the equivalent volume saturated adsorption capacity of 1 g titanium oxide to ethanol is 0.83 g ethanol / 1 g titanium oxide. The sample was placed in a tray above 90 g of ethanol solution, the sample and the solution were in a non-contact state, and treated at 30°C for 5 hours. Then the sample was placed in a tray above a solution consisting of 8g of tetramethylammonium hydroxide, 90g of ethanol, and 100g of water....
Embodiment 3
[0046] Take a clean container, add 2.4g of urea, 7.5g of cetyltrimethylammonium bromide, and 210mL of deionized water and mix evenly, then add 3g of titanium sulfate, stir for 1.8h; then put it into the reaction kettle for 170 ℃ for 15 hours; then washed with deionized water for 5 times, dried at 120 ℃ for 12 hours to obtain titanium oxide; then mixed 1 g titanium oxide, 0.3 g octadecyltrichlorosilane, and 6 g toluene, and stirred at 30 ℃ for 2 h, and then dry the sample at 120°C for 10 h. Then mixed with 0.0005 g tetraethyl orthosilicate and 0.83 g ethanol, the equivalent volume saturated adsorption capacity of 1 g titanium oxide to ethanol is 0.83 g ethanol / 1 g titanium oxide. Then the sample was placed in a tray above 110 g of ethanol solution, the sample and the solution were in a non-contact state, and treated at 50° C. for 2 hours. Then the sample was placed in a tray above a solution consisting of 16g of tetramethylammonium hydroxide, 110g of ethanol, and 100g of wat...
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