Preparation method of nano titanium dioxide thin film materials loaded on surface of ceramic body

A technology for nano-titanium dioxide and thin-film materials, which is applied in the field of preparation technology of nano-titanium dioxide thin-film materials, can solve the problems of difficult recovery of nano-titanium dioxide powder, low secondary utilization rate, difficult popularization and application, etc. The effect of uniform film distribution

Inactive Publication Date: 2010-09-01
广州瑞塔光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem of this method is that the nano-titanium dioxide powder is not easy to recycle, the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] Example one

[0014] Add 10 g of titanium oxysulfate powder into 2000 g of deionized water, and then stir, add 50 g of aqueous ammonia solution while stirring (ammonia water is diluted with deionized water before stirring) to adjust the pH of the solution to 6.5. After centrifugal separation, the obtained slurry was washed twice with deionized water, and then added to 500 g of a mixed solution of absolute ethanol and acetylacetone, where the volume ratio of absolute ethanol to acetylacetone was 1:4, and then added 2.5g of sodium dodecylbenzene sulfonate, stir well until a stable titanium dioxide sol is formed. After placing it for 1 hour, the clean ceramic body is made into a ceramic ball shape with a diameter of 2cm and soaked in the prepared titanium dioxide sol. Take it out in minutes, then repeat the immersion, take out the ceramic ball, then dry it, calcinate in a muffle furnace at 500℃ for 2h, cool to room temperature, and form a layer of nano-titanium dioxide film m...

Example Embodiment

[0015] Example two

[0016] Add 8 g of titanium oxysulfate powder into 1800 g of deionized water, and then stir, add 100 g of urea particles while stirring, and adjust the pH of the solution to 7. After centrifugal separation, the obtained slurry was washed twice with deionized water, and then added to 450g of a mixed solution of absolute ethanol and acetylacetone, where the volume ratio of absolute ethanol to acetylacetone was 1:4, and then added 2g of sodium dodecylbenzene sulfonate, stir well until a stable titania sol is formed. After standing for 1 hour, the clean ceramic body is made into a ceramic ball shape with a diameter of 4cm. Soak it in the prepared titania sol for 15 minutes. Take it out, then repeat the soaking again, take out the ceramic ball, then dry it, calcined in a muffle furnace at 550°C for 2 hours, and then cool to room temperature. A layer of nano-titanium dioxide film material is formed on the surface of the ceramic ball. Ceramic balls can be used for w...

Example Embodiment

[0017] Example three

[0018] Add 6 g of titanium tetrachloride powder to 1500 g of deionized water, and then stir, add 50 g of ammonium bicarbonate while stirring to adjust the pH of the solution to 6.5. After centrifugation, the obtained slurry was washed twice with deionized water, and then added to 400 g of a mixed solution of absolute ethanol and acetylacetone. The volume ratio of absolute ethanol and acetylacetone was 1:4, and then 2g of hydroxyacetone was added. Propyl cellulose, stir well until a stable titanium dioxide sol is formed. After placing it for 1 hour, the ceramic body is made into a ceramic strip shape with a diameter of 6cm, soaked in the prepared titanium dioxide sol for 15 minutes and then taken out, and then soaked again. , Take out the ceramic strip, then dry it, calcined in a muffle furnace at 500°C for 2h, and cool to room temperature to form a layer of nano-TiO2 film material on the surface of the ceramic strip. At the same time, the ceramic strip load...

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Abstract

The invention provides a preparation method of nano titanium dioxide thin film materials loaded on the surface of a ceramic body. The preparation method comprises the following steps of: adding the organic titanium salt to the de-ionized water and stirring the de-ionized water and adding alkali liquor to adjust the pH value to be 6 to 8; centrifuging for separating the mixed solution, and adding the separated slurry to the mixed solution of absolute ethyl alcohol and acetylacetone; adding the dispersing agent to the mixed solution, sufficiently and uniformly stirring the mixed solution till the stable titanium dioxide sol is formed; soaking the high-temperature resistance and corrosion resistance ceramic body into the titanium dioxide sol, drying and forging the ceramic body for 2 to 4 hours to form one layer of nano titanium dioxide thin film material on the surface of the ceramic body. The thin film is distributed uniformly, and the thickness of the thin film is controllable. When being applied to treating the industrial waste water, the ceramic body loaded with nano titanium dioxide thin film can be utilized repeatedly and has low cost and no secondary pollution.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a preparation process of a nano-titanium dioxide film material loaded on the surface of a ceramic body. Background technique [0002] Under the irradiation of light, nano-titanium dioxide photocatalyst converts light energy into highly oxidizing hydroxyl groups and active oxygen, which can decompose almost all organic substances harmful to the environment, such as formaldehyde, pesticides, and organic compounds containing benzene ring series. Since the photocatalyst does not participate in other chemical reactions, it is theoretically a semi-permanent and effective product with very safe and stable performance. Therefore, as a new environmental purification material, photocatalyst has become one of the most concerned focuses in the field of industrial and agricultural wastewater treatment. Compared with other sewage treatment technologies, it has many advantages: low co...

Claims

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Application Information

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IPC IPC(8): C04B41/85
Inventor 周立军
Owner 广州瑞塔光电科技有限公司
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