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Method for preparing titanium dioxide nanotube/cotton fabric photocatalytic material based on click chemistry

A technology of titanium dioxide and click chemistry, which is applied in chemical instruments and methods, water pollutants, plant fibers, etc., can solve the problems of easy aggregation of nano-titanium dioxide powder materials, difficulty in recycling nano-titanium dioxide, and reduced photocatalytic activity to achieve good photocatalytic activity. Catalytic effect, excellent environmental protection, high adsorption efficiency

Active Publication Date: 2018-02-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prominent problem of fabrics made by this technology is that the nano-titanium dioxide powder material is still easy to agglomerate, resulting in a decrease in photocatalytic activity, and the recovery of nano-titanium dioxide is very difficult, which limits its development to a certain extent.

Method used

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  • Method for preparing titanium dioxide nanotube/cotton fabric photocatalytic material based on click chemistry
  • Method for preparing titanium dioxide nanotube/cotton fabric photocatalytic material based on click chemistry
  • Method for preparing titanium dioxide nanotube/cotton fabric photocatalytic material based on click chemistry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037](1) Dissolve 0.5g of sodium hydroxide and 0.7g of Pingpingjiao in 100ml of water to form a mixed solution, put 1g of cotton fabric (6cm×6cm) in the mixed solution, and ultrasonically clean it for 20min in a water bath at 70°C to remove the surface of the fabric Oil stains, get pretreated cotton fabrics.

[0038] (2) Dissolve 2g of silane coupling agent in 50ml of ethanol and water with a volume ratio of 4:1 to form a solution, adjust the pH of the solution to 3-4 with a boric acid solution with a pH of 2.0, and stir at 25°C for 30min , 0.98 g of the pretreated cotton fabric in step (1) was immersed in the solution for 2 minutes, and placed in a vacuum oven at 120° C. for 5 minutes to obtain a reduced cotton fabric.

[0039] (3) Add 4g sodium borate decahydrate and 100ml water into a 250mL three-necked flask to form a solution, and use N 2 Purge for 30 minutes, then add 1.9 g of dopamine hydrochloride, stir at a rate of 100 rpm for 15 minutes, and adjust the pH of the re...

Embodiment 2

[0043] (1) Dissolve 0.5g of sodium hydroxide and 0.7g of Pingpingjiao in 100ml of water to form a mixed solution, put 1g of cotton fabric (6cm×6cm) in the mixed solution, and ultrasonically clean it for 20min in a water bath at 70°C to remove the surface of the fabric Oil stains, get pretreated cotton fabrics.

[0044] (2) Dissolve 2g of silane coupling agent in 50ml of ethanol and water with a volume ratio of 4:1 to form a solution, adjust the pH of the solution to 3-4 with a boric acid solution with a pH of 2.0, and stir at 25°C for 30min , 0.98 g of the pretreated cotton fabric in step (1) was immersed in the solution for 2 minutes, and placed in a vacuum oven at 120° C. for 5 minutes to obtain a reduced cotton fabric.

[0045] (3) Add 4g sodium borate decahydrate and 100ml water into a 250mL three-necked flask to form a solution, and use N 2 Purge for 30 minutes, then add 1.9 g of dopamine hydrochloride, stir at a rate of 100 rpm for 15 minutes, and adjust the pH of the r...

Embodiment 3

[0049] (1) Dissolve 0.5g of sodium hydroxide and 0.7g of Pingpingjiao in 100ml of water to form a mixed solution, put 1g of cotton fabric (6cm×6cm) in the mixed solution, and ultrasonically clean it for 20min in a water bath at 70°C to remove the surface of the fabric Oil stains, get pretreated cotton fabrics.

[0050] (2) Dissolve 1.25g of silane coupling agent in 30ml of ethanol and water with a volume ratio of 4:1 to form a solution, adjust the pH of the solution to 3-4 with a boric acid solution with a pH of 2.0, and stir at 25°C After 30 minutes, 0.98 g of the pretreated cotton fabric in step (1) was immersed in the solution for 4 minutes, and placed in a vacuum oven at 120° C. for 5 minutes to obtain a reduced cotton fabric.

[0051] (3) Add 4g sodium borate decahydrate and 100ml water into a 250mL three-necked flask to form a solution, and use N 2 Purge for 30 minutes, then add 1.9 g of dopamine hydrochloride, stir at a rate of 100 rpm for 15 minutes, and adjust the pH...

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 relates to a method for preparing a titanium dioxide nanotube / cotton fabric photocatalytic material based on click chemistry. The method includes the synthesis of pretreated cotton fabrics, the synthesis of reduced cotton fabrics, the synthesis of bromo-dopamine hydrochloride, the synthesis of bromo-titanium dioxide nanotubes and the synthesis of the titanium dioxide nanotube / cottonfabric photocatalytic material based on click chemistry. The method is simple, low in cost, middle in conditions, high in product yield, less in side reaction and environmentally friendly. The prepared titanium dioxide nanotube / cotton fabric photocatalytic material based on click chemistry is high in adsorption efficiency and good in stability, has good photocatalytic effect and excellent environmental friendliness, and can be used to treat dyes in printing and dyeing wastewater and expand the application of the cotton fabrics in the photocatalytic adsorption of dye wastewater.

Description

technical field [0001] The invention belongs to the field of textile modification, in particular to a method for preparing a titanium dioxide nanotube / cotton fabric photocatalytic material based on click chemistry. Background technique [0002] The functionalization of textiles has been a research hotspot in the field of textiles in recent years. By introducing functional organic or inorganic nanostructure materials, fibers or textiles are endowed with certain functions, especially in the research of photocatalysis, formaldehyde degradation, self-cleaning, antibacterial and other properties in recent years. to develop rapidly. In general, the functionalization of textiles can be achieved not only through emerging production technologies and raw materials, but also through new avenues for textile modification. Modification of textiles by adding functional additives (organic or inorganic nanostructured materials) is one of the most important approaches. Among many functional...

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): D06M11/46D06M13/50C02F1/30C02F1/28C02F101/30D06M101/06
CPCC02F1/285C02F1/30C02F2101/308D06M11/46D06M13/50D06M2101/06
Inventor 樊吉俞丹王炜
Owner DONGHUA UNIV
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