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Preparation method of high-functionality graphene diatomite composite material

A technology of graphene diatomite and composite materials, which is applied in the field of preparation and application of high-functional graphene diatomite composite materials, and can solve problems such as difficulty in extraction and dispersion.

Active Publication Date: 2021-08-13
JILIN JIANZHU UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to complete the preparation of a highly functional graphene diatomite composite material, realize the integrated treatment of secondary and tertiary diatomite purification and graphene preparation, and make it applied in the field of diatomite coatings , which solves the difficulties of extraction and dispersion of multilayer graphene after oxidation treatment, the secondary composite application of diatomite graphene, and the purification treatment of diatomite. The process is simple, efficient, and can achieve formaldehyde purification under visible light catalytic conditions Efficiency greater than 95%

Method used

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  • Preparation method of high-functionality graphene diatomite composite material
  • Preparation method of high-functionality graphene diatomite composite material
  • Preparation method of high-functionality graphene diatomite composite material

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Effect test

Embodiment 1

[0025] 1) According to the hummer method graphene preparation process, after compound oxidation of 1g of multilayer graphene and 50g of diatomite and tertiary diatomite, the product was washed to neutrality, and dried in a blast drying oven at 60°C to obtain graphite Diatomaceous earth composite material, optical photo as figure 1 As shown, the electron microscope photos are as figure 2 shown, and then ground into powder for later use.

[0026] 2) get step 1) graphene diatomite composite material 20g prepared, ultrasonic dispersion 30 minutes under the condition of 100 watts, obtain graphene diatomite composite material dispersion liquid, as image 3 shown.

[0027] 3) Disperse 2g of latex powder, 0.8g of dispersant, and 0.5g of cellulose in deionized water, and disperse at a high speed under the condition of 5000 rpm, stir for 5 minutes and compound with graphene diatomite in step 2) The material dispersion was blended and stirred for 5 minutes before use.

[0028] 4) Ad...

Embodiment 2

[0030] 1) According to the hummer method graphene preparation process, after the multi-layer graphene 1g and the second and third grade diatomite 40g are prepared by composite oxidation, the obtained graphene diatomite composite material is washed to neutrality, and placed in a blast drying oven Dry at 60°C, and then grind into powder for later use.

[0031] 2) Take 23 g of the graphene-diatomite composite material prepared in step 1), and ultrasonically disperse it under the condition of 100 watts for 30 minutes to obtain the graphene-diatomite composite material dispersion.

[0032] 3) Disperse 2.5g of latex powder, 1.0g of dispersant, and 0.8g of cellulose in deionized water, and disperse at a high speed under the condition of 5000 rpm, and blend with the graphene dispersion in step 2 after stirring for 5 minutes Stir for 5 minutes and set aside.

[0033] 4) Add 45g of heavy calcium powder, 18g of gray calcium powder, and 2.5g of nano-zinc oxide into step 3, disperse and s...

Embodiment 3

[0035] 1) According to the hummer method graphene preparation process, after the multi-layer graphene 1g and the second and third grade diatomite 30g are prepared by composite oxidation, the obtained graphene diatomite composite material is washed to neutrality, and placed in a blast drying oven Dry at 60°C, and then grind into powder for later use.

[0036] 2) Take 26 g of the graphene-diatomite composite material prepared in step 1), and ultrasonically disperse it under the condition of 100 watts for 30 minutes to obtain the graphene-diatomite composite material dispersion.

[0037] 3) Disperse latex powder 3g, dispersant 1.1g, and cellulose 1.0g in deionized water, and disperse at a high speed under the condition of 5000 rpm, stir for 5 minutes, and blend and stir with the graphene dispersion in step 2 Set aside for 5 minutes.

[0038] 4) Add 50g of heavy calcium powder, 18g of gray calcium powder, and 3g of nano-zinc oxide into step 3, disperse and stir at high speed for ...

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Abstract

The invention relates to a preparation method of a high-functionality graphene diatomite composite material, and belongs to the technical field of preparation of environment-friendly materials. The preparation method mainly comprises the following steps: carrying out composite oxidation treatment on multilayer graphene and second-level and third-level diatomite, carrying out ultrasonic dispersion, adding auxiliary materials, blending and stirring, carrying out defoaming and sampling, and the like. The technical problem that multilayer graphene is difficult to separate and extract after being oxidized is solved, loading of graphene on the surface of diatomite and integrated preparation of second-stage and third-stage diatomite purification are achieved, the formaldehyde purification efficiency is higher than 95%, and the method can be widely applied to the fields of water treatment, air purification and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of environmental protection materials, in particular to the preparation and application of a high-functional graphene diatomite composite material. Background technique [0002] Coatings, paints, and adhesives in artificial decorative panels used in interior decoration materials can release formaldehyde into the air, causing the indoor formaldehyde concentration to greatly exceed the national standard. The formaldehyde content exceeds the standard and long-term exposure will induce various diseases in the human body , harmful to human health, how to efficiently remove harmful gases such as formaldehyde and toluene, and improve the indoor living environment has become an urgent problem and research focus. [0003] The large number of nanopore structures of diatomite can efficiently adsorb and capture pollutants such as formaldehyde. Under visible light conditions, the photocatalytic material lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/14B01J20/30B01D53/02B01D53/86B01D53/72
CPCB01J20/20B01J20/14B01D53/02B01D53/8668B01D2257/70
Inventor 胡洪亮于浪高皓月肖力光赵薇齐峰韩利通李晶辉赵洪凯张士停
Owner JILIN JIANZHU UNIVERSITY
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