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Preparation method of fabric/polynitrogen/polypyrrole/bismuth tungstate catalytic material

A bismuth tungstate catalytic material, polypyrrole technology, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of low catalytic efficiency and low solar energy utilization. and other problems, to achieve the effects of excellent catalytic performance, broadening the photoresponse region, and simple operation.

Inactive Publication Date: 2019-04-19
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a preparation method of fabric / polynitrogen / polypyrrole / bismuth tungstate catalytic material, so as to overcome the defects of low utilization rate of solar energy and low catalytic efficiency of photocatalyst in the prior art

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Disperse 1.5mmol melamine in 150mL acetonitrile, stir for 30min, immerse in cotton fabric (5cm*5cm), then gradually add 0.75mmol melamine and stir for 30min, then irradiate in a 150W high-pressure mercury lamp (ultraviolet lamp) After 12 hours, wash with acetonitrile several times and dry at 60°C for 8 hours to obtain cotton fabric / polynitrogen material;

[0030] (2) Dissolve 0.8mL of pyrrole monomer and 0.2g of bismuth tungstate in 120mL of hydrochloric acid (0.8mol / L), put into the above-mentioned cotton fabric / polynitrogen material to make it adsorb pyrrole monomer and bismuth tungstate for 1h, and then Keep the temperature of the mixed solution at about 0°C under ice bath, then slowly add 50mL ferric chloride / hydrochloric acid solution (100g / L) dropwise, the fabric can be observed to turn from white to black, and finally washed several times with deionized water and placed in Dry at 60°C for 4 hours to obtain a highly efficient and recyclable catalytic material ...

Embodiment 2

[0032] (1) Disperse 2.25mmol melamine in 175mL acetonitrile, stir for 30min, immerse in cotton fabric (5cm*5cm), then gradually add 0.75mmol melamine and stir for 45min, then irradiate in a 150W high-pressure mercury lamp (ultraviolet lamp) After 18 hours, wash with acetonitrile several times and dry at 70°C for 10 hours to obtain cotton fabric / polynitrogen material;

[0033] (2) Then, dissolve 1.2mL pyrrole monomer and 0.3g bismuth tungstate in 160mL hydrochloric acid (1mol / L), put the above cotton fabric / polynitrogen material to make it adsorb pyrrole monomer and bismuth tungstate for 1.5h, and then Keep the temperature of the mixture at about 2.5°C under an ice bath, then slowly add 50mL of ferric chloride / hydrochloric acid solution (150g / L) dropwise, the fabric can be observed to turn from white to black, and finally washed several times with deionized water and placed in Dry at 60°C for 4 hours to obtain a highly efficient and recyclable catalytic material of cotton fabri...

Embodiment 3

[0035] (1) Disperse 3mmol melamine in 200mL acetonitrile, stir for 30min, immerse in cotton fabric (5cm*5cm), then gradually add 0.75mmol melamine and stir for 60min, then irradiate with 150W high-pressure mercury lamp (ultraviolet lamp) for 24h After that, wash several times with acetonitrile and dry at 80°C for 12 hours to obtain cotton fabric / polynitrogen material;

[0036](2) Dissolve 1.6mL of pyrrole monomer and 0.4g of bismuth tungstate in 200mL of hydrochloric acid (1.2mol / L), put into the above-mentioned cotton fabric / polynitrogen material to make it adsorb pyrrole monomer and bismuth tungstate for 2 hours, and then Keep the temperature of the mixed solution at about 5°C under an ice bath, then slowly add 50mL of ferric chloride / hydrochloric acid solution (200g / L) dropwise, the fabric can be observed to turn from white to black, and finally washed several times with deionized water and placed in Dry at 60°C for 4 hours to obtain a highly efficient and recyclable cataly...

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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PUM

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Abstract

The invention relates to a preparation method of a fabric / polynitrogen / polypyrrole / bismuth tungstate catalytic material. The method includes the following steps: preparation of a fiber / polynitrogen material, and preparation of the fabric / polynitrogen / polypyrrole / bismuth tungstate catalytic material. The method effectively broadens a light response area to near infrared and greatly improves the utilization rate of solar energy, and the catalytic material can be reused for many times.

Description

technical field [0001] The invention belongs to the field of preparation methods of composite photocatalytic materials, in particular to a preparation method of fabric / polynitrogen / polypyrrole / bismuth tungstate catalytic materials. Background technique [0002] With the acceleration of industrialization and urbanization in our country, environmental pollution caused by organic pollutants, polymer waste, and biomass pollution has become a serious social problem. Even low concentrations of certain organic pollutants can be highly toxic, posing serious threats to ecosystems and human health. Traditional pollutant treatment technologies, such as physical adsorption and chemical precipitation, cannot completely remove these organic pollutants, and many other harmful by-products may be produced during actual operation, causing secondary pollution. Therefore, an effective "green" technology is needed to convert harmful pollutants into harmless substances without causing secondary ...

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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IPC IPC(8): B01J31/34
CPCB01J31/34B01J35/39
Inventor 刘保江杨瑞祥赵强强胡春艳张海升董锋徐顺环
Owner DONGHUA UNIV