Preparation method and application of plastic with surface being grafted with graphene and anthraquinone compound

A technology of surface grafting and graphene, applied in chemical instruments and methods, water pollutants, biological water/sewage treatment, etc., can solve problems such as weak binding force, achieve low cost, increase biodegradation rate, source wide range of effects

Active Publication Date: 2019-08-23
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the graphene oxide in this reaction is physically adsorbed to the surface of the foam, and the binding force is not strong, which will cause it to fall off and fail during subsequent use.

Method used

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  • Preparation method and application of plastic with surface being grafted with graphene and anthraquinone compound
  • Preparation method and application of plastic with surface being grafted with graphene and anthraquinone compound
  • Preparation method and application of plastic with surface being grafted with graphene and anthraquinone compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation of PE plastic with hydrophilic surface: use ozone to modify the surface of low-density PE plastic with an average particle size of 0.2mm;

[0040] Preparation of amino-modified low-density PE plastics: add 6 parts of 3-aminopropyltrimethoxysilane to 100 parts of alcohol aqueous solution with a volume ratio of 95:5, stir for half an hour, and add 30 parts of the above-mentioned low-density PE with hydrophilic surface For plastic, heat up to 55°C, react for 3 hours, filter, filter out the solid, wash it three times with absolute ethanol, and dry;

[0041] Preparation of low-density PE plastic with graphene oxide grafted on the surface: add 1 part of modified Hummers method graphene oxide to 700 parts of tetrahydrofuran, ultrasonically disperse, add 8 parts of the above-mentioned amino-modified low-density PE plastic, and stir for 1 hour , filtered, the filtered solid was washed three times with absolute ethanol, and dried;

[0042] Preparation of low-density ...

Embodiment 2

[0046] Preparation of PP plastic with hydrophilic surface: use plasma to modify the surface of PP plastic with an average particle size of 0.05mm;

[0047] Preparation of amino-modified PP plastic: Add 8 parts of 3-aminopropyltriethoxysilane to 100 parts of alcohol aqueous solution with a volume ratio of 95:5, stir for half an hour, add 40 parts of the above-mentioned PP plastic with a hydrophilic surface, and heat up to 70°C, reacted for 1.5 hours, filtered, and the filtered solid was washed three times with absolute ethanol, and dried;

[0048] Preparation of PP plastic with graphene oxide grafted on the surface: add 1 part of modified Hummers method graphene oxide to 500 parts of tetrahydrofuran, ultrasonically disperse, add 40 parts of the above-mentioned amino-modified PP plastic, stir for 1 hour, filter, and filter out The solid was washed three times with absolute ethanol and dried;

[0049] Preparation of PP plastic surface-grafted graphene and anthraquinone compound:...

Embodiment 3

[0052] Preparation of semi-soft filler with hydrophilic surface: use ion beam to modify the surface of semi-soft filler to hydrophilicity;

[0053] Preparation of amino-modified semi-soft filler: Add 5 parts of 3-aminopropylmethyldiethoxysilane to 100 parts of alcohol aqueous solution with a volume ratio of 95:5, stir for half an hour, add 40 parts of the above-mentioned surface affinity Water semi-soft filler, heated to 70°C, reacted for 2 hours, filtered, the filtered solid was washed three times with absolute ethanol, and dried;

[0054] Preparation of semi-soft fillers with surface-grafted graphene oxide: add 1 part of modified Hummers method graphene oxide to 8000 parts of tetrahydrofuran, ultrasonically disperse, add 25 parts of the above-mentioned amino-modified semi-soft fillers, and stir for 2 hours. Filter, filter out the solid, wash three times with absolute ethanol, and dry;

[0055] Preparation of plastics with surface grafted graphene and anthraquinone compounds...

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Abstract

The invention belongs to the field of water treatment, relates to the field of treatment of wastewater containing pollutants, and concretely relates to a preparation method and an application of a plastic with the surface being grafted with graphene and an anthraquinone compound. The surface of a plastic is hydrophilically modified to obtain active groups such as a hydroxyl group and a carboxyl group, the reactive groups react with an amino group-containing silane coupling agent to make the surface of the plastic have the amino group, the amino group reacts with the carboxyl group on the surface of the graphene oxide, the remaining hydroxyl group, carboxyl group or secondary amino group and a sulfonyl chloride group-containing anthraquinone compound undergo a dehydrochlorination reaction,and the graphene oxide is further reduced to obtain the plastic with the surface being grafted with graphene and the anthraquinone compound. The plastic obtained in the invention can significantly accelerate the biodegradation of azo dyes, nitrates and the like, can be reused for 10 times or more, and can be widely used in the field of sewage treatment.

Description

technical field [0001] The invention relates to the field of water treatment engineering, in particular to a preparation method and application of plastic surface grafted graphene and anthraquinone compound. Background technique [0002] With the rapid development of modern industry, a large number of synthetic chemical substances are applied in the industrial field, and a large amount of industrial wastewater is generated, which will cause serious adverse effects on the environment and ecology. These synthetic chemicals are not easily degraded, but effective disposal methods must be found. [0003] Azo dyes are a class of synthetic chemical substances that are harmful to the human body and the environment. They have stable chemical properties, are not easy to biodegrade, and are toxic and carcinogenic. However, they are widely used in the printing and dyeing industry. Traditional treatment methods including coagulation-flocculation, membrane treatment, and chemical adsorpt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C08F8/06C08F8/32C08F10/02C02F3/34C02F101/38C02F101/16
CPCC02F3/34C02F2003/001C02F2101/163C02F2101/308C02F2101/38C08F8/06C08F8/32C08G83/001C08F10/02
Inventor 徐苏廖文超曾孟祥许美兰严滨叶茜
Owner XIAMEN UNIV OF TECH
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