Preparation method of titanium dioxide based self-cleaning glass
A titanium dioxide, self-cleaning technology, applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problems of low coating efficiency, unsuitable for mass production, and film thickness that cannot meet the required photocatalytic effect, and meets equipment requirements. , good organic matter catalytic degradation activity, and the effect of flexible control of film thickness
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[0043] The preparation method of titanium dioxide-based self-cleaning glass provided by the invention comprises the following steps:
[0044] Titanium tetrachloride, concentrated ammonia water, hydrogen peroxide and glycolic acid were added to ice cubes in sequence, and magnetically stirred continuously to obtain a light yellow transparent solution; the titanium tetrachloride, concentrated ammonia water, hydrogen peroxide, ethanol The amount of acid used is titanium tetrachloride: concentrated ammonia water: hydrogen peroxide: glycolic acid = 1 ~ 2: 3 ~ 5: 11 ~ 15: 1; the resulting solution is placed in a constant temperature blast drying oven at 60-100 ℃ for 5-8 hours, the preferred temperature is 60-80℃, and the time is 5-6 hours; after taking it out, add distilled water, stir until it becomes a uniform and stable solution, add inorganic strong acid to adjust its pH to 0-3, and stir for 5 minutes. Place in a high-pressure reactor and heat to a reaction temperature of 130-180...
Embodiment 1
[0047] Using titanium tetrachloride, concentrated ammonia water, hydrogen peroxide, and glycolic acid as raw materials, add them to an appropriate amount of ice cubes in turn, and continue magnetic stirring to obtain a light yellow transparent solution, which is placed in a constant temperature blast drying box React at 80°C for 6 hours; take it out, add an appropriate amount of distilled water, stir until it becomes a uniform and stable solution, add inorganic strong acid to adjust its pH to 1, stir for 5 minutes, place it in a high-pressure reactor and heat it to a reaction temperature of 160°C for 1.5 hours The consumption of described titanium tetrachloride, strong ammonia water, hydrogen peroxide, glycolic acid is titanium tetrachloride by weight ratio: concentrated ammonia water: hydrogen peroxide: glycolic acid=2:3:13:1, after the reaction is cooled The obtained white precipitate was washed and centrifuged, and the obtained solid sample was ultrasonically dispersed in ab...
Embodiment 2
[0050] Using titanium tetrachloride, concentrated ammonia water, hydrogen peroxide, and glycolic acid as raw materials, add them to an appropriate amount of ice cubes in turn, and continue magnetic stirring to obtain a light yellow transparent solution, which is placed in a constant temperature blast drying box React at 60°C for 5 hours; take it out, add an appropriate amount of distilled water, stir until it becomes a uniform and stable solution, add inorganic strong acid to adjust its pH to 0, stir for 5 minutes, place it in a high-pressure reactor and heat it to a reaction temperature of 130°C for 1 hour The consumption of described titanium tetrachloride, strong ammonia water, hydrogen peroxide, glycolic acid is titanium tetrachloride by weight ratio: concentrated ammonia water: hydrogen peroxide: glycolic acid=1:5:11:1, after reaction cooling The obtained white precipitate was washed and centrifuged, and the obtained solid sample was ultrasonically dispersed in absolute et...
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