Method for supporting nano titanic oxide on surface of carrier material
A technology of nano-titanium dioxide and carrier materials, applied in chemical instruments and methods, nanotechnology, nanotechnology, etc., can solve the problems of nanoparticle erosion and difficult control, and achieve the best performance effect
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[0021] Example 1:
[0022](1) Preparation of carrier material. Take the glass as the carrier according to the need, first wash with water to remove the dust on the surface, and then immerse it in NaOH-Na 2 CO 3 Cleaning in the mixed solution, NaOH and Na in the mixed solution 2 CO 3 The mass concentration is 5% to wash off the surface oil stains, and finally rinse with deionized water, and dry for use.
[0023] (2) Nano TiO 2 Preparation of ethanol suspension. Take 0.5g nano TiO 2 The powder was mixed with 200ml of absolute ethanol and treated in a ball mill at 450r / min for 15h to obtain a uniformly dispersed nano-TiO with a concentration of 2.5g / L 2 Ethanol suspension.
[0024] (3) Adhesive coating. The treated glass carrier material is immersed in a silica sol solution with a concentration of 25 wt%, and then taken out after being fully immersed; the coating is completely dried and then immersed in a silica sol solution with a concentration of 5 wt%, and then taken out after bei...
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[0026] Example 2:
[0027] (1) Preparation of carrier material. Take the foamed nickel as the carrier as needed, wash it with water first to remove the dust on the surface, and then immerse it in NaOH-Na 2 CO 3 Cleaning in the mixed solution, NaOH and Na in the mixed solution 2 CO 3 The mass concentration is 5% to wash off the surface oil stains, and then soak in a 5% HCl solution for 10 minutes to improve the wettability with silica sol. Finally, it is washed with deionized water and dried for later use.
[0028] (2) Nano TiO 2 Preparation of ethanol suspension. Take 0.5g nano TiO 2 The powder is mixed with 500ml of absolute ethanol and treated in a ball mill at 500r / min for 12h to obtain a uniformly dispersed nano-TiO with a concentration of 1g / L 2 Ethanol suspension.
[0029] (3) Adhesive coating. The treated foamed nickel carrier material is immersed in a silica sol solution with a concentration of 10% by weight, fully immersed and taken out. After the coating is completely dr...
Example Embodiment
[0031] Example 3:
[0032] (1) Preparation of carrier material. Take porous ceramics as the carrier as needed, first wash with water to remove the dust on the surface, and then immerse it in NaOH-Na 2 CO 3 Cleaning in the mixed solution, NaOH and Na in the mixed solution 2 CO 3 The mass concentration is 5% to wash off the surface oil stains, and finally rinse with deionized water, and dry for use.
[0033] (2) Nano TiO 2 Preparation of ethanol suspension. Take 0.1g nano TiO 2 The powder is mixed with 200ml of absolute ethanol and treated in a ball mill at 400r / min for 8h to obtain a uniformly dispersed nano-TiO with a concentration of 0.5g / L 2 Ethanol suspension.
[0034] (3) Adhesive coating. The treated porous ceramic carrier material is immersed in a silica sol solution with a concentration of 5 wt%, and taken out after being fully immersed; the coating is completely dried and then immersed in a silica sol solution with a concentration of 25 wt%, and then taken out after being ...
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