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Graphene composite antibacterial purification material for PM2.5 and preparation method thereof

A graphene composite and purification material technology, applied in the field of air and water purification, can solve the problem of not having the ability to clean up harmful components at the same time

Inactive Publication Date: 2021-12-07
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Common PM2.5 purification materials can only filter PM2.5 pollutants, and do not have the function of cleaning other harmful components in the air at the same time

Method used

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  • Graphene composite antibacterial purification material for PM2.5 and preparation method thereof
  • Graphene composite antibacterial purification material for PM2.5 and preparation method thereof

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preparation example Construction

[0026] The present invention also relates to a method for preparing a graphene composite antibacterial purification material for PM2.5, comprising the following steps: after weighing the above-mentioned raw materials by weight,

[0027] 1) Add coconut shell activated carbon, lignin, nano-titanium dioxide, methylcellulose, and talcum powder into the mixer in turn, stir and mix evenly to make a mixture;

[0028] 2) drying the mixture and naturally cooling to room temperature, and grinding the cooled mixture to obtain pretreatment powder;

[0029] 3) Graphene is placed in deionized water to form a suspension, and the suspension is ultrasonically treated;

[0030] 4) Mixing the ultrasonically treated suspension in step 3) with the pretreatment powder in step 1), and roasting to obtain a graphene composite purification material.

[0031] In some embodiments, in step 4), the suspension is evenly sprayed on the pretreatment powder to ensure uniform mixing of the two and improve the ...

Embodiment 1

[0036] A preparation method for a graphene composite antibacterial purification material for PM2.5, comprising the following steps: weighing 20 parts of graphene; 10 parts of lignin; 40 parts of coconut shell activated carbon; 2 parts of nano-titanium dioxide; 0.5 parts of methyl cellulose part; 0.5 part of talcum powder; 400 parts of deionized water,

[0037] 1) Add 40 parts of coconut shell activated carbon, 2 parts of nano-titanium dioxide, 0.5 part of methyl cellulose, and 0.5 part of talcum powder into the mixer in turn, stir and mix evenly to make a mixture;

[0038] 2) drying the mixture and naturally cooling to room temperature, and grinding the cooled mixture to obtain pretreatment powder;

[0039] 3) placing 20 parts of graphene in 400 parts of deionized water to form a suspension, and ultrasonically treating the suspension for 30 minutes;

[0040] 4) Mixing the ultrasonically treated suspension in step 3) with the pretreatment powder in step 1), and roasting to obt...

Embodiment 2

[0042] A preparation method for a graphene composite antibacterial purification material for PM2.5, comprising the steps of: weighing 50 parts of graphene; 10 parts of lignin; 60 parts of coconut shell activated carbon; 8 parts of nano-titanium dioxide; 3 parts of methyl cellulose parts; 3 parts of talcum powder; 600 parts of deionized water,

[0043] 1) Add 60 parts of coconut shell activated carbon, 8 parts of nano-titanium dioxide, 3 parts of methylcellulose, and 3 parts of talcum powder into the mixer in turn, stir and mix evenly to make a mixture;

[0044] 2) drying the mixture and naturally cooling to room temperature, and grinding the cooled mixture to obtain pretreatment powder;

[0045] 3) placing 50 parts of graphene in 600 parts of deionized water to form a suspension, and ultrasonically treating the suspension for 30 minutes;

[0046] 4) Mixing the ultrasonically treated suspension in step 3) with the pretreatment powder in step 1), and roasting to obtain a graphe...

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Abstract

The invention relates to a graphene composite antibacterial purification material for PM2.5. The graphene composite antibacterial purification material is prepared from the following raw materials in parts by weight: 20 to 50 parts of graphene, 10 to 15 parts of lignin, 40 to 60 parts of coconut shell activated carbon, 2 to 8 parts of nano titanium dioxide, 0.5 to 3 parts of methyl cellulose, 0.5 to 3 parts of talcum powder, and 400 to 600 parts of deionized water. The invention also relates to a preparation method of the graphene composite antibacterial purification material for PM2.5. By preparing the composite purification material according to the formula of the invention, other harmful air or water pollutants can be removed while sufficient filtration of PM2.5 is ensured.

Description

【Technical field】 [0001] The invention relates to the technical field of air and water purification, in particular to a graphene composite antibacterial purification material for PM2.5 and a preparation method thereof. 【Background technique】 [0002] PM2.5 is fine particulate matter, which refers to particulate matter in the ambient air with an aerodynamic equivalent diameter less than or equal to 2.5 microns. It can be suspended in the air for a long time, and the higher its concentration in the air, the more serious the air pollution. Although PM2.5 is only a small component of the earth's atmospheric composition, it has an important impact on air quality and visibility. Compared with coarser atmospheric particles, PM2.5 has a small particle size, large area, strong activity, and is easy to attach toxic and harmful substances (such as heavy metals, microorganisms, etc.), and has a long residence time in the atmosphere and a long transportation distance. Therefore, it has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/20B01D39/16B01D46/00C02F1/00
CPCB01D39/2055B01D39/2068B01D39/16B01D46/0001C02F1/001Y02A50/2351
Inventor 孙佳惟孙云飞阙妙玲陈丽香李涛吴靖
Owner SUZHOU UNIV OF SCI & TECH
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