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Method for loading titanium dioxide nanowires on polyester fabric

A technology of polyester fabric and titanium dioxide, which is applied in textiles and papermaking, biochemical fiber treatment, fiber treatment, etc., can solve the problems of low effect of fiber functional modification, uneven distribution, and no literature reports of nanowire arrays. Effects of self-cleaning performance and antibacterial performance, significant application prospects

Active Publication Date: 2016-04-06
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the first method is that TiO 2 The nanoparticles are almost all embedded in the fiber, and the TiO exposed on the fiber surface 2 There are few nanoparticles, so the functional modification of the fiber itself has little effect
The disadvantage of the second method is that the TiO on the surface of the treated fiber 2 The bonding fastness between the film and the fiber is not good, and the film on the surface is TiO 2 Nanoparticle film, uneven particle size, uneven distribution, photocatalytic activity is not as good as TiO with one-dimensional nanostructure 2 films, such as uniform TiO 2 Nanowire array films and TiO 2 Nanoflower array films, etc.
Currently, one-dimensional TiO loaded on polyester fabric 2 Nanowire arrays have not been reported in the literature

Method used

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  • Method for loading titanium dioxide nanowires on polyester fabric
  • Method for loading titanium dioxide nanowires on polyester fabric
  • Method for loading titanium dioxide nanowires on polyester fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Select a polyester fabric with a specification of 75D×120D as a sample, and take a size of 5×5cm 2 The samples were washed once with acetone, three times with ethanol and three times with deionized water, and dried.

[0024] (2) Add ethylenediamine: sodium hydroxide: accelerator 1631 into deionized water according to the mass fraction ratio of 2:28:0.08 to prepare an aqueous solution of alkali amine, and immerse the washed and dried polyester fabric in alkali amine according to a bath ratio of 1:30. React in an aqueous solution at 65°C for 20 minutes, wash with water, and dry.

[0025] (3) At 4°C, stir tetrabutyl titanate: deionized water: nitric acid: ethanol in a molar ratio of 1:1:0.1:9.25 for 10 minutes, configure titanium sol, and immerse the sample after the above treatment in this Titanium sol for 24h, then pulled out at a rate of 50mm / min, and dried at 80°C for 24h.

[0026] (4) Submerge the treated sample in 0.15M hydrochloric acid solution, react at 70° ...

Embodiment 2

[0030] (1) Select a polyester fabric with a specification of 30D×30D as a sample, and take a size of 5×5cm 2 The samples were washed once with acetone, three times with ethanol and three times with deionized water, and dried.

[0031] (2) With embodiment 1 step (2).

[0032] (3) At 0° C., stir tetrabutyl titanate: deionized water: nitric acid: ethanol in a molar ratio of 1:1:0.1:9.25 for 10 minutes to prepare a titanium sol. The sample after the above treatment was immersed in the titanium sol for 24h, then pulled out at a rate of 100mm / min, and dried at 80°C for 24h.

[0033] (4) With embodiment 1 step (4).

[0034] (5) The growth liquid of titanium dioxide nanowires is prepared: nitric acid and melamine are added to the hydrogen peroxide solution with a mass concentration of 30%, the concentration of nitric acid in the growth liquid is 0.31M, and the mass fraction of melamine is 0.06%. And add excess titanium powder as a titanium source, then immerse the treated sample in...

Embodiment 3

[0037] (1) With embodiment 1 step (1).

[0038](2) Add ethylenediamine: sodium hydroxide: accelerator 1631 into deionized water according to the mass ratio of 2:28:0.08 to prepare an alkaline amine aqueous solution, and immerse the washed and dried polyester fabric in the alkaline amine aqueous solution at a bath ratio of 1:30 React at 75°C for 20 minutes, wash with water, and dry.

[0039] (3) At 8° C., tetrabutyl titanate: deionized water: nitric acid: ethanol was prepared in a titanium sol at a molar ratio of 1:1:0.1:9.25, and stirred for 10 minutes. The sample after the above treatment was immersed in the titanium sol for 24 hours, then pulled at a rate of 150mm / min, and dried at 80°C for 24 hours.

[0040] (4) with embodiment 1 step (4)

[0041] (5) The growth solution of titanium dioxide nanowires is prepared: nitric acid and melamine are added to the hydrogen peroxide solution with a mass concentration of 30%, the concentration of nitric acid in the growth solution is...

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Abstract

The invention discloses a method for loading titanium dioxide nanowires on a polyester fabric. The method comprises the following steps that 1, the polyester fabric is steeped in an alkali amine aqueous solution for surface roughening treatment; 2, titanium sol is prepared, the polyester fabric is steeped in the titanium sol, and seed crystal layer deposition is conducted on the surface of the polyester fabric; 3, hydrochloric acid treatment is conducted; 4, a titanium dioxide nanowire growth solution is prepared, an excess amount of titanium source is added, and hydrogen titanate nanowires are grown on the surface of the polyester fabric; 5, sulfuric acid treatment is conducted, and the polyester fabric loaded with the titanium dioxide nanowires is obtained. By means of the method for loading the titanium dioxide nanowires on the polyester fabric, compounding of TiO2 one-dimensional nanowires and polymer-based polyester fabric is achieved, and the polyester fabric has better self-cleaning property and antibacterial property; meanwhile, by means of the excellent photocatalytic performance of the titanium dioxide nanowires, the prepared polyester and TiO2 compounded fabric has a great application prospect in the fields of filtration and degradation of wastewater and atmospheric pollution treatment.

Description

technical field [0001] The invention relates to a method for loading titanium dioxide nanowires on polyester fabrics, which can be used to prepare antibacterial and self-cleaning fabrics, and the obtained products can also be used for filtering and degrading sewage, belonging to the technical field of medical environmental protection materials. Background technique [0002] Titanium dioxide, chemical formula TiO 2 , is a polymorphic wide bandgap semiconductor material, used in photolysis of water, photocatalytic oxidation, photocatalytic reduction, photocatalytic synthesis of organic matter, photocatalytic degradation of organic matter, sterilization, solar cells, self-cleaning, gas sensors and humidity The performance shown in sensors and other aspects is eye-catching and has important application prospects. Currently TiO 2 Powder production has been industrialized, but TiO 2 Powders have disadvantages in application, for example: due to nano-TiO 2 The particles are rel...

Claims

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Application Information

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IPC IPC(8): D06M11/46D06M11/38D06M101/32
CPCD06M11/38D06M11/46D06M16/00D06M2101/32
Inventor 徐阳吴进明
Owner ZHEJIANG UNIV