Nano three-element (TiO2, Si and Mo) photocatalyst and its preparing process
A nano-photocatalyst and photocatalyst technology, applied in the field of photocatalytic materials, can solve the problems of complex process and high product cost, and achieve the effect of high photocatalytic activity, low cost and high photocatalytic activity
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Embodiment 1
[0021] Dissolve 50ml of tetraethyl orthosilicate in 100ml of absolute ethanol, stir for 5 minutes, then add 2.5ml of hydrochloric acid and 8ml of deionized water, stir and reflux for 2 hours to obtain silica sol.
[0022] Dissolve 70ml of butyl titanate in 80ml of absolute ethanol, stir for 10 minutes to form solution a; take another 40ml of absolute ethanol, add 9ml of hydrochloric acid, 6ml of glacial acetic acid, 0.20g of ammonium molybdate, and 8ml of deionized water to form Solution b: Add solution b dropwise to solution a under vigorous stirring and stir for 2 hours to form molybdenum / titanium sol.
[0023] Take 100ml of cooled silica sol and add it to 35ml of molybdenum / titanium sol and continue to stir for 1 hour to obtain a sol that is stirred and refluxed for 2 hours, aged at room temperature for 24 hours, coated or directly dried, and burned at 800°C for 2 hours to obtain Ti / Si / Mo ternary composite catalyst with a specific surface area of 110m 2 / g, high photocat...
Embodiment 2
[0025] Dissolve 50ml of n-butyl silicate in 140ml of absolute ethanol, stir for 5 minutes, then add 3ml of hydrochloric acid and 10ml of deionized water, stir and reflux for 1 hour to obtain silica sol.
[0026] Dissolve 70ml of butyl titanate in 100ml of absolute ethanol and stir for 10 minutes to form solution a: take another 60ml of absolute ethanol, add 9ml of hydrochloric acid, 6ml of glacial acetic acid, 0.04g of ammonium molybdate, and 8ml of deionized water to form Solution b: Add solution b dropwise to solution a under vigorous stirring and stir for 2 hours to form molybdenum / titanium sol.
[0027] Take 35ml of cooled silica sol and add it to 100ml of molybdenum / titanium sol and continue to stir for 1 hour to obtain a sol that is stirred and refluxed for 2 hours, aged at room temperature for 36 hours, coated or directly dried, and burned at 600°C for 2 hours to obtain Ti / Si / Mo ternary composite catalyst with a specific surface area of 76m 2 / g, high photocatalytic ...
Embodiment 3
[0029] Dissolve 50ml of tetraethyl orthosilicate in 100ml of absolute ethanol, stir for 5 minutes, then add 2.5ml of hydrochloric acid and 8ml of deionized water, stir and reflux for 2 hours to obtain silica sol.
[0030] Dissolve 70ml of butyl titanate in 80ml of absolute ethanol and stir for 10 minutes to form solution a; take another 40ml of absolute ethanol, add 9ml of hydrochloric acid, 6ml of glacial acetic acid, 0.08g of ammonium molybdate, and 8ml of deionized water to form Solution b: Add solution b dropwise to solution a under vigorous stirring and stir for 2 hours to form molybdenum / titanium sol.
[0031] Take 50ml of cooled silica sol and add it to 50ml of molybdenum / titanium sol and continue to stir for 1 hour to obtain a sol that is stirred and refluxed for 2 hours, aged at room temperature for 24 hours, coated or directly dried, and burned at 800°C for 2 hours to obtain Ti / Si / Mo ternary composite catalyst with a specific surface area of 85m 2 / g, high photoca...
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