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Photocatalytic self-cleaning functional cotton fabric and preparation method thereof

A cotton fabric, self-cleaning technology, used in plant fibers, textiles and papermaking, fiber processing and other directions, can solve problems such as being easily soluble in water and difficult to recycle, and achieve strong electron transmission capacity, no secondary pollution, and inhibition of recombination. Effect

Inactive Publication Date: 2021-06-04
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a green catalyst, it has the advantages of high activity, good selectivity, non-toxicity, and no corrosion of equipment, but it also has the disadvantages of being easily soluble in water and difficult to recycle. Therefore, supported POMs photocatalysts have gradually become a research hotspot.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Photocatalytic self-cleaning functional cotton fabric and preparation method thereof
  • Photocatalytic self-cleaning functional cotton fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1. Weigh 0.0742g of ammonium molybdate tetrahydrate and 0.0564g of copper nitrate in a beaker, add 10ml of water, and stir at 20°C until it dissolves to obtain a mixed solution;

[0024] Step 2. Weigh 0.0138g of 1,2,4-triazole, add it into the mixed solution, and dissolve it by ultrasonic treatment at 20°C for 20 minutes. Use hydrochloric acid and sodium hydroxide with a concentration of 1mol / L to adjust the pH of the solution to 2.5, stir at room temperature for 30 minutes to obtain the treatment solution;

[0025] Step 3. Immerse 5g of cotton fabric in a NaOH solution with a mass fraction of 2% at a bath ratio of 1:50, wash at 80°C, dry after washing, and then immerse the mass fraction at a bath ratio of 1:30 In a 10% sodium chloroacetate solution, react at room temperature for 5 minutes, take it out, wash it, and dry it to obtain a cotton fabric treated with etherification modification;

[0026] Step 4. Put the etherified cotton fabric in step 3 into the treatm...

Embodiment 2

[0028] Step 1. Weigh 0.1236g of ammonium molybdate tetrahydrate and 0.0752g of copper nitrate in a beaker, add 30ml of n-propanol, and stir at 30°C until it dissolves to obtain a mixed solution;

[0029] Step 2. Weigh 0.02g of 1,2,4-triazole, add it into the mixed solution, and dissolve it by ultrasonic treatment at 30°C for 20 minutes. Use hydrochloric acid and sodium hydroxide with a concentration of 1mol / L to adjust the pH of the solution to 5.5, Stir at room temperature for 30 minutes to obtain the treatment solution;

[0030] Step 3. Immerse 5g of cotton fabric in a NaOH solution with a mass fraction of 2% at a bath ratio of 1:50, wash at 80°C, dry after washing, and then immerse the mass fraction at a bath ratio of 1:50 In a 20% sodium chloroacetate solution, react at room temperature for 10 minutes, take it out, wash it, and dry it to obtain a cotton fabric treated with etherification modification;

[0031] Step 4. Put the etherified and modified cotton fabric in step ...

Embodiment 3

[0033] Step 1. Weigh 0.2472g of ammonium molybdate tetrahydrate and 0.1128g of copper nitrate in a beaker, add 50ml of ethanol, and stir at 50°C until it dissolves to obtain a mixed solution;

[0034] Step 2. Weigh 0.0276g of 1,2,4-triazole, add it into the mixed solution, and dissolve it by ultrasonic treatment at 50°C for 20 minutes. Use hydrochloric acid and sodium hydroxide with a concentration of 1mol / L to adjust the pH of the solution to 8.5, stir at room temperature for 30 minutes to obtain the treatment solution;

[0035] Step 3. Immerse 5g of cotton fabric in a NaOH solution with a mass fraction of 2% at a bath ratio of 1:50, wash at 80°C, dry after washing, and then immerse the mass fraction at a bath ratio of 1:100 In a 30% sodium chloroacetate solution, react at room temperature for 20 minutes, take it out, wash it, and dry it to obtain a cotton fabric treated with etherification modification;

[0036] Step 4. Put the etherified cotton fabric in step 3 into the tr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention belongs to the technical field of cotton fabric finishing, and relates to a photocatalytic self-cleaning functional cotton fabric and a preparation method thereof. The preparation method provided by the invention comprises the following steps of dissolving ammonium molybdate tetrahydrate and copper nitrate in an organic solvent, stirring until the ammonium molybdate tetrahydrate and the copper nitrate are dissolved, then adding 1, 2, 4-triazole, carrying out ultrasonic treatment to dissolve the 1, 2, 4-triazole, and adjusting the pH value to 2.5-8.5 to obtain a treatment solution; soaking a washed cotton fabric into a sodium chloroacetate solution, reacting for 5-20 minutes at room temperature, taking out, washing and drying to obtain a cotton fabric subjected to etherification modification treatment; and putting the cotton fabric subjected to etherification modification treatment into the treatment solution, conducting ultrasonic treatment for 3-8 h, conducting stirring for 12-24 h at the room temperature, then taking out the cotton fabric, washing and drying, and obtaining the photocatalytic self-cleaning functional cotton fabric. The photocatalytic self-cleaning functional cotton fabric prepared by the preparation method disclosed by the invention is stronger in light absorption capacity, more in photocatalytic reaction sites and more excellent in photocatalytic self-cleaning performance.

Description

technical field [0001] The invention belongs to the technical field of cotton fabric finishing, and relates to a photocatalytic self-cleaning functional cotton fabric and a preparation method thereof, in particular to a method for preparing a cotton fabric with self-cleaning function by loading the cotton fabric with a polyacid-based metal-organic framework material . Background technique [0002] The self-cleaning function refers to the post-processing to make the surface of the fabric super-hydrophobic or have the special performance of photocatalytic degradation of pollutants, so as to reduce the number of times of washing clothes or the amount of detergent, and finally achieve the purpose of saving water, energy and environmental protection. . Among them, the preparation of photocatalytic self-cleaning fabrics is to load particles with photocatalytic effects on the fabrics, so that the fabrics can degrade organic pollutants through photocatalysis, which can effectively ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/37D06M13/21C08G83/00D06M101/06
CPCC08G83/008D06M13/21D06M15/37D06M2101/06
Inventor 毛庆辉郑琳娟鲁雯茜葛佩山罗正鑫张莉
Owner NANTONG UNIVERSITY
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