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A kind of modified titanium dioxide hydrosol and preparation method thereof

A technology of titanium dioxide and hydrosol, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of application limitations, no affinity, poor affinity, etc., to improve photocatalytic activity and efficiency, improved antistatic performance, and easy industrial operation

Active Publication Date: 2016-01-20
NANTONG TEXTILE VOCATIONAL TECH COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Titanium dioxide is an inorganic substance and has almost no affinity with textile materials. Using it as a finishing agent to finish fabrics has disadvantages such as high energy consumption, high cost, poor affinity, uneven dispersion, and easy agglomeration. App is restricted
The Chinese patent with the authorized notification number CN101474556B discloses a method for preparing fluorine and lanthanum co-doped titanium dioxide sol, which improves the photocatalysis and efficiency under visible light, but still uses ethanol as a solvent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 9.6g of glacial acetic acid and place it in a beaker. Add 13.6g of butyl titanate to dissolve it completely while stirring at room temperature to obtain a transparent solution. Then add 0.208g of ethyl orthosilicate while stirring, and continue stirring for 5 After ~10 minutes, a transparent solution A was obtained. In another beaker, first add about 30g of deionized water, then add 3ml of lanthanum acetate solution with a concentration of 12.64g / L and 7ml of a urea solution with a concentration of 24g / L while stirring at room temperature, and then add deionized water until the total weight is 72g, and finally add 9.6g of glacial acetic acid, stir for 5-10 minutes to obtain a transparent solution B. In a water bath at 30°C, slowly add solution B to solution A dropwise, and stir vigorously. After the dropwise addition, continue to stir vigorously in a water bath at 30°C for 1 hour, and then form at room temperature for 48 hours to obtain a slightly Yellow transpar...

Embodiment 2

[0029] Weigh 10.8g of glacial acetic acid and place it in a beaker, and add 13.6g of butyl titanate to dissolve it completely while stirring at room temperature to obtain a transparent solution, then add 0.416g of ethyl orthosilicate while stirring, and continue stirring for 5 After ~10 minutes, a transparent solution A was obtained. In another beaker, first add about 30g of deionized water, then add 10ml of thulium acetate solution with a concentration of 13.84g / L and 5ml of urea solution with a concentration of 24g / L while stirring at room temperature, and then add deionized water until the total weight is 72g, and finally add 10.8g of glacial acetic acid, stir for 5-10 minutes to obtain a transparent solution B. In a water bath at 30°C, slowly add solution B to solution A dropwise, and stir vigorously. After the dropwise addition, continue to stir vigorously in a water bath at 30°C for 1 hour, and then condense at room temperature for 72 hours to obtain a slightly Yellow t...

Embodiment 3

[0031] Weigh 12g of glacial acetic acid and place it in a beaker, add 13.6g of butyl titanate to dissolve completely while stirring at room temperature to obtain a transparent solution, then add 0.832g of ethyl orthosilicate while stirring, and continue stirring for 5~ After 10 minutes, a transparent solution A was obtained. In another beaker, first add about 30g of deionized water, then add 7ml of yttrium acetate solution with a concentration of 10.64g / L and 3ml of a urea solution with a concentration of 24g / L while stirring at room temperature, and then add deionized water until the total weight is 72g, and finally add 12g of glacial acetic acid and stir for 5-10 minutes to obtain a transparent solution B. In a water bath at 40°C, slowly add solution B to solution A dropwise, and stir vigorously. After the dropwise addition, continue to stir vigorously in a water bath at 40°C for 1 hour, and then convert at room temperature for 72 hours to obtain a slightly Yellow transpare...

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PUM

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Abstract

The invention discloses modified titanium dioxide hydrosol and a preparation method thereof. The titanium dioxide hydrosol is prepared by the following steps: by taking butyl titanate as a raw material, by adopting a sol-gel technology, taking deionized water as a solvent and taking glacial acetic acid as a hydrolysis inhibitor, doping ethyl orthosilicate, a rare earth compound and a nitrogen compound without using an organic solvent and a strong acid, so as to perform three-element co-doped modification of three types including a compound semiconductor, rare earth metal ions and nonmetallic elements on the titanium dioxide sol. According to the titanium dioxide hydrosol, an ultraviolet-resistant function of titanium dioxide is guaranteed, the photocatalytic activity and efficiency of the titanium dioxide under visible light are improved, and the antistatic property is improved, so that multifunctional finishing agent is formed.

Description

technical field [0001] The invention belongs to the intersection field of inorganic nanometer materials and textile materials, and in particular relates to a preparation method of modified titanium dioxide hydrosol which is used for textile finishing, multi-component doping, has visible light catalytic activity and multiple functions. Background technique [0002] During people's wearing and use, textiles will be stained with dust, stains, sweat, sebum and various human secretions. These dirt not only affect people's use, but also are good for microbial reproduction. environment. With the acceleration of the pace of life and the pursuit of high-quality life, the requirements for the self-cleaning ability of textiles have emerged as the times require, but traditional methods can no longer meet the various needs of modern textiles. With the development of nanotechnology in the textile industry application, the self-cleaning of textiles becomes possible. [0003] Photocatalyt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M13/188D06M11/46B01J31/38
Inventor 李朝晖杨晓红王生
Owner NANTONG TEXTILE VOCATIONAL TECH COLLEGE
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