Antibacterial three-dimensional graphene adsorption agent for air purification and preparation method thereof

An air purification and antibacterial technology, applied in the field of antibacterial three-dimensional graphene adsorbents for air purification and preparation, can solve the problems of complicated process steps, poor antibacterial properties, hindering the development of graphene, etc., and achieves simple preparation process and application prospect. Broad, antibacterial properties-enhancing effect

Inactive Publication Date: 2018-12-11
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] According to the above, the graphene composite material used for air purification in the existing scheme has cumbersome process steps, and the adsorption and purification effect is not ideal, and the antibacterial property is poor, which hinders the development of graphene in air purification.

Method used

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  • Antibacterial three-dimensional graphene adsorption agent for air purification and preparation method thereof
  • Antibacterial three-dimensional graphene adsorption agent for air purification and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Firstly, the mixed acid of sulfuric acid, hydrochloric acid and peracetic acid is used to purify the large-grained activated carbon substrate, then to carry out carboxylation treatment with nitric acid, and then to dry to obtain activated carbon with carboxyl groups in the inner wall; the temperature of the purification treatment is 210 ℃, the time is 72min; the temperature of carboxylation treatment is 133℃, and the time is 42min;

[0036] In mixed acid, 13 parts by weight of sulfuric acid, 55 parts by weight of hydrochloric acid, 32 parts by weight of peracetic acid;

[0037] (2) Add nano-silver-loaded antibacterial agent and aminated graphene oxide into water to make a composite slurry;

[0038] In the composite slurry, 13 parts by weight of nano silver-loaded antibacterial agent, 13 parts by weight of aminated graphene oxide, and 74 parts by weight of water; the carrier of nano silver-loaded antibacterial agent is nano zirconium phosphate;

[0039] (3) First pu...

Embodiment 2

[0045](1) Firstly, the mixed acid of sulfuric acid, hydrochloric acid and peracetic acid is used to purify the large-grained activated carbon matrix, and then to carry out carboxylation treatment with nitric acid, and then to dry to obtain activated carbon with carboxyl groups in the inner wall; the temperature of purification treatment is 200 ℃, the time is 80min; the temperature of carboxylation treatment is 120℃, and the time is 50min;

[0046] In the mixed acid, 12 parts by weight of sulfuric acid, 68 parts by weight of hydrochloric acid, and 20 parts by weight of peracetic acid;

[0047] (2) Add nano-silver-loaded antibacterial agent and aminated graphene oxide into water to make a composite slurry;

[0048] In the composite slurry, 10 parts by weight of the nanometer silver-loaded antibacterial agent, 10 parts by weight of aminated graphene oxide, and 80 parts by weight of water; the carrier of the nanometer silver-loaded antibacterial agent is nano-titanium dioxide;

...

Embodiment 3

[0055] (1) Firstly, the mixed acid of sulfuric acid, hydrochloric acid and peracetic acid is used to purify the large-grained activated carbon matrix, and then to carry out carboxylation treatment with nitric acid, and then to dry to obtain activated carbon with carboxyl groups in the inner wall; the temperature of the purification treatment is 205 ℃, the time is 75min; the temperature of carboxylation treatment is 125℃, and the time is 45min;

[0056] In mixed acid, 13 parts by weight of sulfuric acid, 65 parts by weight of hydrochloric acid, 22 parts by weight of peracetic acid;

[0057] (2) Add nano-silver-loaded antibacterial agent and aminated graphene oxide into water to make a composite slurry;

[0058] In the composite slurry, 11 parts by weight of nanometer silver-loaded antibacterial agent, 11 parts by weight of aminated graphene oxide, and 78 parts by weight of water; the carrier of nanometer silver-loaded antibacterial agent is nano zirconium carbide;

[0059] (3)...

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Abstract

The invention relates to the field of air purification, and discloses an antibacterial three-dimensional graphene adsorption agent for air purification and a preparation method thereof. The method comprises the following preparation process that (1) mixed acid is used for performing purification treatment on an active carbon substrate carboxylation treatment to prepare active carbon containing carboxyls at the inner wall; (2) adding silver carried antibacterial agents and amination graphene oxide into water to be prepared into composite slurry; (3) coating the composite slurry onto active carbon; performing vacuum pumping to obtain modified active carbon; (4) soaking the modified active carbon into a thick solution; performing pressurization to copy the three-dimensional network structureof active carbon; (5) performing reduction after calcination to prepare the graphene adsorption agent with the antibacterial effect. The adsorption agent prepared by the method has a good adsorption effect on impurities and harmful gas in the air; in addition, the excellent antibacterial performance is realized; meanwhile, the preparation process is simple; the application prospects are wide.

Description

technical field [0001] The invention relates to the field of air purification, and discloses an antibacterial three-dimensional graphene adsorbent for air purification and a preparation method thereof. Background technique [0002] my country's air pollution has evolved from soot-type pollution in the last century to regional and complex air pollution, and has become the region with the most serious aerosol pollution in the world. At the end, the average annual concentration of PM2.5 has exceeded 70ug / m 3 , more than 2 times higher than the national standard and more than 7 times higher than the WHO guidance value. Nowadays, air pollution has seriously endangered human health and has become a worldwide problem. It is very necessary to study air purification technology. One of the most basic technologies is adsorption purification. [0003] Graphene is a kind of carbon atom with sp developed in recent years 2 The carbon-based nanomaterial with a two-dimensional periodic ho...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30A61L9/16B01D53/02
CPCB01J20/20A61L9/16B01D53/02B01J20/0233B01J20/28014B01J20/28054
Inventor陈庆昝航
OwnerCHENDU NEW KELI CHEM SCI CO LTD