Preparation method for textile fiber/graphene/Ag3PO4 composite environment catalysis material

A textile fiber and catalytic material technology, which is applied in the field of preparation of textile fiber/graphene/Ag3PO4 composite environmental catalytic material, can solve the problems of high processing cost, large loss of tearing strength, and ineffective removal, so as to accelerate photocatalysis Degradation reaction, easy industrial production, and the effect of improving photocatalytic activity

Inactive Publication Date: 2016-10-12
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adsorption and biological treatment are commonly used in industry. The adsorption method only transfers toxic pollutants from the liquid phase to the solid phase, but does not completely eliminate organic pollutants. The biological treatment cycle is long and the equipment occupies a large area. Biological toxicity can not be effectively removed
In contrast, advanced oxidation technologies can directly degrade dyes and other organic substances by producing strong oxidizing active species, and even completely mineralize them, which has attracted widespread attention. However, these advanced oxidation technologies also have certain limitations, such as easy to bring Secondary pollution, high treatment cost, unsuitable for large-flow wastewater treatment, and the priority removal of toxic target pollutants in the presence of a large number of organic/inorganic compounds is quite difficult, so it is very difficult to design and develop an efficient removal of toxic target pollutants in actual wastewater systems The catalytic system is of great significance
[0003] In order to construct high-efficiency micro-nano structures on the surface of textile fibers and overcome the adverse effects of the use of adhesives on the performance of catalytic fibers, the researchers tried to use the sol-gel finishing method to prepare catalytic functional fibers. The research results showed that the catalytic fibers prepared by this method The fiber has certain catalytic properties, but there are the following problems: (1) the curing of the gel must be carried out at high temperature, which has an impact on the physical and mechanical properties of the textile fiber, such as a large loss of tear strength; (2) the sol- The gel method prepares an amorphous nano-photocatalyst with no phot

Method used

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  • Preparation method for textile fiber/graphene/Ag3PO4 composite environment catalysis material
  • Preparation method for textile fiber/graphene/Ag3PO4 composite environment catalysis material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Add 230mL of concentrated sulfuric acid and 3g of sodium nitrate into a beaker, cool in an ice-water bath, add 10g of graphite powder while stirring, and after mixing evenly, grind 30g of potassium permanganate into fine powder and slowly add it, and stir and react for 1 hour at 0°C to obtain Graphite intercalation compound; after heating up to 35°C and continuing to react for 30 minutes, add 460mL of deionized water and continue to react for 30 minutes; then add 1400mL of deionized water and 30ml of 30% hydrogen peroxide in sequence, the solution changes from brick red to bright yellow, and continue to react After 10 minutes, filter, wash with 2% dilute hydrochloric acid, and then wash with deionized water several times (8000rpm, 30min), vacuum dry at 50°C to obtain graphene oxide, redisperse graphene oxide in water, and ultrasonicate for 30min. drying the dispersion in a vacuum oven at 40°C to obtain graphene oxide;

[0026] (2) Select hemp fiber as a carrier, use...

Embodiment 2

[0029] (1) Add 240mL of concentrated sulfuric acid and 4.5g of sodium nitrate into a beaker, cool in an ice-water bath, add 10g of graphite powder while stirring, after mixing evenly, grind 40g of potassium permanganate and add slowly, stir and react at 0°C for 1.5h , to obtain a graphite intercalation compound; after heating up to 40°C and continuing the reaction for 45 minutes, 530 mL of deionized water was added, and the reaction was continued for 37 minutes; then 1600 mL of deionized water and 45 ml of 30% hydrogen peroxide were added in sequence, and the solution changed from brick red to bright yellow, After continuing to react for 18 minutes, filter, wash with 3% dilute hydrochloric acid, then centrifuge (8000rpm, 37min) with deionized water several times, dry at 60°C in vacuum to obtain graphene oxide, redisperse graphene oxide in water, and ultrasonically For 340 minutes, dry the dispersion in a vacuum drying oven at 50°C to obtain graphene oxide;

[0030] (2) Select ...

Embodiment 3

[0033] (1) Add 250mL of concentrated sulfuric acid and 6g of sodium nitrate into a beaker, cool in an ice-water bath, add 10g of graphite powder while stirring, and after mixing evenly, grind 50g of potassium permanganate into fine powder and add slowly, then stir and react for 2 hours at 0°C to obtain Graphite intercalation compound; after heating up to 45°C and continuing to react for 60 minutes, add 600mL of deionized water and continue to react for 45 minutes; then add 1800mL of deionized water and 60ml of 30% hydrogen peroxide in sequence, the solution changes from brick red to bright yellow, and continue to react After 25 minutes, filter, wash with 4% dilute hydrochloric acid, then wash with deionized water several times (8000rpm, 45min), vacuum dry at 70°C to obtain graphene oxide, redisperse graphene oxide in water, and ultrasonicate for 50min. Dry the dispersion in a vacuum oven at 60°C to obtain graphene oxide;

[0034] (2) Select silk fiber as a carrier, use acetone...

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PUM

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Abstract

The present invention relates to a kind of textile fiber/graphene/Ag 3 PO 4 A method for preparing a composite environmental catalytic material, comprising: soaking textile fibers in a saturated dispersion of graphene oxide, then drying, cleaning, and then placing them in a reducing agent solution, reacting at 50-80°C for 0.5-1 hour, washing, and drying dry to obtain textile fiber/graphene; adding textile fiber/graphene to AgNO 3 solution, stirred, and then added Na 3 PO 4 And urea, 120 ~ 180 ° C hydrothermal reaction for 3 ~ 8 hours, after cooling, washing, drying, to obtain textile fiber / graphene / Ag 3 PO 4 Composite environmental catalytic materials. The method of the invention is simple and suitable for industrialized production; the obtained composite material has better environmental purification effect.

Description

technical field [0001] The invention belongs to the field of preparation of environmental catalytic materials, in particular to a textile fiber / graphene / Ag 3 PO 4 A method for preparing a composite environmental catalytic material. Background technique [0002] Environmental resources are an important basis for the survival and development of human society. The governance and protection of the environment has been running through the history of the development of human industrial society and is directly related to the sustainable development of human society. Water shortage is an important issue facing society today, and the treatment of industrial wastewater has always been the top priority in the environmental field. In recent years, the treatment of some low-concentration toxic pollutants in actual wastewater, such as conjugated dyes, chlorinated aromatic compounds, polybrominated diphenyl ethers, antibiotics, etc., has become the focus of international research. Adsor...

Claims

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Application Information

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IPC IPC(8): B01J31/26C02F1/30C02F1/00
CPCB01J31/26B01J35/004C02F1/00C02F1/30C02F2101/308C02F2305/10
Inventor 刘保江周德慧朱智甲
Owner DONGHUA UNIV
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