Method for directly synthesizing titanium dioxide nanoparticles on fabric fiber in situ

A fabric fiber and titanium dioxide technology, applied in plant fiber, chemical instruments and methods, fiber treatment, etc., can solve the problems of low utilization rate of sunlight, easy agglomeration and loss of photocatalysis, and achieve low preparation cost, avoid agglomeration, The effect of increasing the contact area

Inactive Publication Date: 2018-12-14
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is aimed at TiO 2 Photocatalysis is easy to agglomerate, easy to lose, difficult to recycle, and low utilization rate of sunlight. Provide a method for in-situ synthesis of titanium dioxide nanoparticles directly on fabric fibers

Method used

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  • Method for directly synthesizing titanium dioxide nanoparticles on fabric fiber in situ
  • Method for directly synthesizing titanium dioxide nanoparticles on fabric fiber in situ
  • Method for directly synthesizing titanium dioxide nanoparticles on fabric fiber in situ

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In the first step, take 120mL of absolute ethanol in a beaker, add 8mL of butyl titanate drop by drop while ultrasonicating, mix and prepare a butyl titanate solution, and then soak 1.6227g of pure cotton fabric into the prepared solution for 24 hours ;

[0025] In the second step, immerse the pure cotton fabric treated in the first step in 20mL of absolute ethanol, add 20mL of deionized water drop by drop while ultrasonicating, and hydrolyze for 0.5h;

[0026] In the third step, the hydrolyzed mixed solution in the second step is placed in a polytetrafluoroethylene autoclave, subjected to hydrothermal treatment at 120° C. for 8 hours, and cooled at room temperature;

[0027] In the fourth step, pour the mixed solution after the hydrothermal treatment in the third step into a beaker, ultrasonicate for 1 minute, and then wash the fabric with deionized water three times to remove the substances that are not firmly bonded to the surface, and dry;

[0028] In the fifth ste...

Embodiment 2

[0031] In the third step, the hydrothermal treatment temperature is 130° C., and the rest of the steps are the same as in Example 1.

Embodiment 3

[0033] In the third step, the hydrothermal treatment temperature is 150° C., and the rest of the steps are the same as in Example 1. Its SEM image and XRD pattern are as follows image 3 , Figure 4 shown.

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 discloses a method for directly synthesizing titanium dioxide nanoparticles on a fabric fiber in situ, belongs to the technical field of application of titanium dioxide nanoparticles, and aims to solve the problems that TiO2 is liable to agglomeration, liable to lose, hard to recycle and low in sunshine utilization rate in photocatalysis. The method comprises the following steps: firstly, preparing a butyl titanate solution from absolute ethyl alcohol and butyl titanate, and soaking a pure cotton fabric into the butyl titanate solution for 24 hours; hydrolyzing for 0.5 hour, further transferring into a polytetrafluoroethylene high-pressure kettle, and carrying out hydrothermal treatment for 8 hours at 120-150 DEG C; finally respectively calcining for 1 hour in a muffle furnace at 200-400 DEG C, so as to obtain a TiO2 nanoparticle supported fabric. By adopting the method, nano TiO2 can be conveniently recycled and reused, the problems that conventional TiO2 powder is liable to agglomeration and liable to lose and thus low in photocatalysis activity can be avoided, and organic pollutants in sewage can be effectively degraded.

Description

technical field [0001] The invention belongs to the technical field of application of titanium dioxide nanoparticles, and in particular relates to a method for in-situ synthesis of titanium dioxide nanoparticles directly on fabric fibers. Background technique [0002] With the rapid development of my country's economy, people's income level is increasing day by day, and the pursuit of quality of life is also constantly improving, resulting in the shortening of the life cycle of textiles and a large amount of waste textiles. The amount of waste textiles produced every year in our country is astonishing, but the comprehensive utilization rate is only 10%, compared with the recovery rate of more than 16% in developed countries, there is a huge room for development. Therefore, the development prospect of recycling waste textiles is very attractive. [0003] TiO 2 Photocatalysis has the advantages of high oxidation activity, good chemical stability, non-toxicity, no pollution, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/46C02F1/30D06M101/06C02F101/30
CPCC02F1/30C02F2101/30C02F2305/10D06M11/46D06M2101/06
Inventor 王淑花鲍站霞高银东于晓颖史晟侯文生
Owner TAIYUAN UNIV OF TECH
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