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Rare earth modified Nano thin film material of titania and technique for preparing thin film

A nano-titanium oxide and rare earth modification technology is applied in the field of rare earth modified nano-titanium oxide thin film material and its preparation field, which can solve the problems of not improving the physical properties of titanium oxide, and achieve performance improvement, utilization rate improvement and hydrophilic performance. excellent effect

Inactive Publication Date: 2006-11-08
史志铭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although CN97191248.3, CN00101041.7 and CN99808599.5 all relate to titanium oxide thin film materials and manufacturing methods thereof, there is no work on using rare earth modified titanium oxide to improve the physical properties of titanium oxide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Mix and stir tetrabutyl titanate and ethanol at a volume ratio of 1:20, dissolve lanthanum nitrate in water, the mass ratio of lanthanum nitrate to water is 1:10, and add to the above-mentioned titanate after dissolving In tetrabutyl ester and ethanol sol, the mass ratio of La and Ti is controlled to be 1:50. Continue to add glycerol, wherein the volume ratio of glycerol and the parent sol is: 1: 15, the volume ratio of acetylacetone formamide and the parent sol is 1: 15, stir strongly for ten hours, and age at room temperature for 5 hours to obtain Titanium oxide mixed sol. Put the clean glass in a container, control the flow rate of the titanium oxide mixed sol to pass through the glass at 15cm / min, take off the glass when the liquid level covers the entire surface, age at room temperature for 24 hours, and sinter at 200°C for 270 minutes , to obtain titanium oxide film glass without interference fringes on the surface. The film thickness of the glass is ...

Embodiment 2

[0019] Example 2: Mix and stir tetrabutyl titanate and ethanol at a volume ratio of 1:15, dissolve lanthanum chloride in water, the mass ratio of lanthanum chloride to water is 1:10, and add to the above-mentioned In tetrabutyl titanate and ethanol sol, the mass ratio of La and Ti is controlled to be 1:40. Continue to add glycerol, wherein the volume ratio of glycerol and the parent sol is 1: 10, the volume ratio of dimethylformamide and the parent sol is: 1: 15, stir vigorously for 10 hours, and age at room temperature for 20 hours, TiO2 mixed sol was obtained. Put the clean glass in a container, control the flow rate of the titanium oxide mixed sol to pass through the glass at a rate of 10cm / min, remove the glass when the liquid level covers the entire surface, age at room temperature for 15 hours, and sinter at 450°C for 60 minutes , to obtain titanium oxide film glass without interference fringes on the surface. The film thickness of the glass is about 170nm, the anatase...

Embodiment 3

[0020] Example 3: Mix and stir tetrabutyl titanate and ethanol at a volume ratio of 1:3, dissolve cerium nitrate in water, the mass ratio of cerium nitrate to water is 1:5, and add to the above-mentioned titanic acid after dissolving In tetrabutyl ester and ethanol sol, the ratio of Ce and Ti is controlled to be 1:30. Continue to add oxalic acid, wherein the volume ratio of oxalic acid and matrix sol is 1:15, and the volume ratio of acetylacetone formamide and matrix sol is 1:3, stir vigorously for 24 hours, and age at room temperature for 5 hours to obtain titanium oxide mixed sol . Put the clean glass in a container, control the speed of the titanium oxide mixed sol to pass through the glass at a speed of 12cm / min, remove the glass when the liquid level covers the entire surface, age at room temperature for 5 hours, and sinter at 500°C for 90 minutes , to obtain titanium oxide film glass without interference fringes on the surface. The film thickness of the glass is about ...

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Abstract

The invention relates to rare earth-modified nano-titanium oxide film material and a preparation method thereof. For rare earth modified titanium oxide thin film materials, the addition of rare earth causes defects in the anatase crystal, and the semiconductor performance of titanium oxide is improved, which makes the absorption wavelength of ultraviolet light shift to a higher wavelength and improves the utilization rate of natural light. , the glass surface is more corrosion-resistant and wear-resistant, and the self-cleaning function is further enhanced. By adding rare earth and a reasonable coating process, the thickness of the titanium oxide film is controlled below 250nm, the grain size of anatase is below 50nm, and the absorption wavenumber of the spectrum can reach 400cm -1 , Excellent hydrophilic performance, visible light transmittance can reach 80%. The nano-titanium oxide film coated on the glass has strong functions of reducing ultraviolet radiation, self-cleaning the surface and resisting corrosion and erosion of the glass surface.

Description

Technical field: [0001] The invention relates to rare earth-modified nano-titanium oxide film material and a preparation method thereof. Background technique: [0002] The destruction of the atmospheric ozone layer increases the intensity of ultraviolet radiation to the ground, and the damage to the human body cannot be underestimated, especially for residents and employees who live and work in high-rise buildings. However, the surface of ordinary window glass is easy to accumulate dust, and it will also produce rust spots and scratches after long-term use, which will affect the appearance of the glass. In addition, the cleaning of high-rise building window glass is also a troublesome thing. Industrial waste gas, automobile exhaust gas, and flue gas from heating boilers in northern winter all contain a large amount of harmful gases and particles, which often adhere to the glass surface, seriously affecting the transparency of the glass and air quality. However, the propert...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/25C04B35/624C04B35/46
Inventor 史志铭
Owner 史志铭