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Tourmaline/titanium dioxide composite collosol containing rare earth and its preparation method and uses

A technology of titanium dioxide and composite sol, which is applied in the direction of titanium dioxide, chemical instruments and methods, titanium oxide/hydroxide, etc., can solve the problems of poor ability of hydroxyl radicals, antibacterial, and low air purification effect

Inactive Publication Date: 2005-09-21
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is mainly manifested in: after the tourmaline / titanium dioxide composite sol prepared by the prior patent application technology is coated on the surface of the article, the article can generate hydroxyl radicals when irradiated by ultraviolet light, which has excellent antibacterial and air purification effects, and can be made into an environmental protection function. Outdoor urban transportation facilities, building exterior wall coatings, glass, air purifiers and other products; but under visible light conditions (when there is no ultraviolet radiation), the product has poor ability to generate hydroxyl radicals, and the antibacterial and air purification effects are not high.

Method used

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  • Tourmaline/titanium dioxide composite collosol containing rare earth and its preparation method and uses
  • Tourmaline/titanium dioxide composite collosol containing rare earth and its preparation method and uses
  • Tourmaline/titanium dioxide composite collosol containing rare earth and its preparation method and uses

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Experimental program
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Effect test

Embodiment 1

[0035] Mix 5.5g tetrabutyl titanate, 3.2g acetic acid, 0.002g ferrite (average particle size 5μm, purity 96.2%), 44g absolute ethanol and stir continuously for 1h to make a suspension; At the same time, the mixed solution of 22g of absolute ethanol and 0.52g of deionized water was slowly added dropwise to the above suspension, and the dropwise addition was completed in about 30 minutes, and the stirring was continued for 2 hours, and then the mixed solution of 22g of absolute ethanol and 0.0005g of cerous nitrate Slowly add dropwise to the above suspension, about 60min after the dropwise addition is completed, continue stirring for 30min, finally add 2.5g concentrated hydrochloric acid, continue stirring for 1h, and obtain cerium-containing tourmaline / titanium dioxide composite sol.

[0036] The cerium-containing tourmaline / titanium dioxide composite sol prepared by the above method has stable performance, is convenient for transportation and application, and has simple manufac...

Embodiment 2

[0038] Mix 10g of methyl titanate, 8g of oxalic acid, 1.5g of ferrite (average particle size 5μm, purity 96.2%), 33g of absolute ethanol and stir continuously for 1h to make a suspension; then, while vigorously stirring, The mixed solution of 16.5g of absolute ethanol and 1g of deionized water was slowly added dropwise to the above suspension, and the dropwise addition was completed in about 30 minutes, and the stirring was continued for 2 hours, then the mixed solution of 16.5g of absolute ethanol and 0.0006g of cerous nitrate was slowly dropped Add it to the above suspension, drop it for about 60 minutes, continue stirring for 30 minutes, and finally add 14.8 g of concentrated hydrochloric acid, continue stirring for 1 hour to obtain a cerium-containing tourmaline / titanium dioxide composite sol.

[0039] The cerium-containing tourmaline / titanium dioxide composite sol prepared by the above method has stable performance, is convenient for transportation and application, and has...

Embodiment 3

[0041] 10g of ethyl titanate, 3.2g of acetic acid, 0.002g of ferrite (average particle size 5μm, purity 96%), 38g of absolute ethanol were mixed and stirred continuously for 1h, and then 19g of anhydrous The mixed solution of ethanol and 1.2g deionized water is slowly added dropwise to the above suspension, and the dropwise addition is completed in about 30 minutes, and the stirring is continued for 2 hours, and then the mixed solution of 19g absolute ethanol and 0.0007g neodymium nitrate is slowly added dropwise to the above suspension In about 60 minutes, the dropwise addition was completed, and the stirring was continued for 2 hours. Finally, 9.5 g of concentrated hydrochloric acid was added, and the stirring was continued for 1 hour to obtain a neodymium-containing tourmaline / titanium dioxide composite sol.

[0042] The neodymium-containing tourmaline / titanium dioxide composite sol prepared by the above method has stable performance, is convenient for transportation and app...

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Abstract

The invention relates to a method for preparing a tourmaline / titanium oxide composite sol and its purposes. The mass percentage of raw materials and feeds is listed: titanate with 5-15%, anhydrous alcohol with 60-90%, organic acid with 3-13%, inorganic acid with 2-15%, deionized water with 0.5-1.5%, tourmaline with 0.001-3%, tombarthite with 0.0004-0.0008%, the total is 100%. The said titanate is one of the kinds such as methyl titanate, ethyl titanate, butyl titanate, titanic chloride and titanoxy sulfate. The said organic acid is one of the kinds such as acetic acid, oxalic acid, formic acid and monosulfonic acid. The said inorganic acid is one of the kinds such as concentrated sulfuric acid, concentrated nitric acid and concentrated chlorhydric acid. The said tourmaline is one or more of the kinds such as iron-tourmaline, elbaite and dravite. The said tombarthite is one of the kinds such as lanthanum, europium nitrate, erbium nitrate, cerous nitrate and neodymium nitrate. The invention also provides the method for preparation of the said sol and its main purposes.

Description

technical field [0001] The invention relates to composite sol-gel technology, in particular to a rare earth-containing tourmaline / titanium dioxide composite sol and its preparation method and application technology. The international patent main classification number is proposed to be Int.Cl 7 C01B015 / 00. Background technique [0002] The present invention is an improved technology based on the applicant's previous patent application "tourmaline / titanium dioxide composite sol and its preparation method and application" (patent application number 03144258.7). Therefore, the background technology of the prior patent application is applicable to the present invention, and the technology of the prior patent application also constitutes the background technology of the present invention. In other words, the present invention is a new technology further developed on the basis of the previous patent application "tourmaline / titanium dioxide composite sol and its preparation metho...

Claims

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Application Information

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IPC IPC(8): C01B33/20C01G23/047C04B35/16C04B35/46C04B35/624
Inventor 梁金生梁广川丁燕孟军平欧秀芹
Owner HEBEI UNIV OF TECH
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