A kind of graphene air purifier and preparation method thereof

Abstract

The invention discloses a graphene air purifier and a preparation method thereof, and relates to the technical field of air purifiers, wherein the graphene air purifier comprises the following raw material components by weight: 0.8-1.2 parts of Cu2O ternary composite material, 0.3-0.5 parts of bactericidal and mildew-proof agent, 1.8-2.2 parts of plant extract, 0.5-0.7 parts of dispersant, 70-80 parts of solvent, 0.2-0.3 parts of xanthan gum, 5-7 parts of graphene dispersion liquid, and 0.4-0.6 parts of alcohol ester twelve. The graphene air purifier provided by the invention can effectively adsorb harmful gases in the air, and the collocation of graphene and Cu2O ternary composite material is conducive to the transmission of electrons, improves photocatalytic performance, has high catalytic efficiency, and can effectively remove harmful gases such as formaldehyde in the air; the graphene air purifier provided by the invention also has excellent antibacterial and mildew-proof performance, has a fragrant smell, can resist inflammation, improves human respiratory function, and can prevent respiratory infections.

Description

Technical Field

[0001] The present invention relates to the technical field of air purifiers, and in particular to a graphene air purifier and a preparation method thereof. Background Art

[0002] VOCs refer to volatile organic compounds. When the concentration of VOCs in the air is too high, it is easy to cause acute poisoning, and in severe cases, it can lead to coma or even life-threatening. Formaldehyde is a type of volatile organic compound. Poor-quality furniture and decoration materials in homes often slowly volatilize high concentrations of harmful gases such as formaldehyde and toluene; the air in car interiors contains a lot of formaldehyde, which comes from common car objects such as plastic parts and car seat cushions.

[0003] Air purifiers are products that utilize the adsorption and decomposition principles of natural substances and are processed by modern science and technology to eliminate harmful gases and various odors in the air. Most existing air purifiers are made from activated carbon and other raw materials. Although they have a certain adsorption effect, the adsorption speed is slow and they are easily saturated and deactivated.

[0004] At present, there is no graphene air purifier that can effectively adsorb and efficiently catalyze the removal of harmful gases such as formaldehyde in the air, and also has antibacterial and anti-mildew properties, a fragrant smell, can resist inflammation, improve human respiratory function, and prevent respiratory infections. Summary of the invention

[0005] In view of the defects in the prior art, the present invention provides a graphene air purifier and a preparation method thereof. The graphene air purifier provided by the present invention can effectively absorb harmful gases in the air, and graphene and Cu 2 The combination of O ternary composite materials is conducive to the transfer of electrons, improves photocatalytic performance, has high catalytic efficiency, and can effectively remove harmful gases such as formaldehyde in the air; the graphene air purifier provided by the present invention also has excellent antibacterial and mildew-proof properties, a fragrant smell, can resist inflammation, improve human respiratory function, and prevent respiratory system infections.

[0006] One object of the present invention is to protect a graphene air purifier, wherein the graphene air purifier comprises the following raw material components in parts by weight: Cu 2 O ternary composite material 0.8-1.2 parts, bactericidal and mildewproof agent 0.3-0.5 parts, plant extract 1.8-2.2 parts, dispersant 0.5-0.7 parts, solvent 70-80 parts, xanthan gum 0.2-0.3 parts, graphene dispersion 5-7 parts, alcohol ester dodecahydrate 0.4-0.6 parts.

[0007] Preferably, the weight concentration of the graphene dispersion is 5%.

[0008] Preferably, the Cu 2 O ternary composite material Cu 2 O / TiO 2 / Bi 2 O 3 , Cu 2 O / BiVO 4 / WO 3 、CdS / ZnFe 2 O 4 / Cu 2 One or more of O.

[0009] Preferably, the dispersant is polyethylene glycol 200 or sodium polyacrylate.

[0010] Preferably, the bactericidal and mildew-proofing agent is 2-octyl-4-isothiazoline-3-one, nanosilver and fir leaf oil in a weight ratio of 1:1:0.7.

[0011] Preferably, the plant extract is one or more of green tea extract, rose extract and bamboo leaf extract.

[0012] Preferably, the solvent is one or more of ethyl acetate, ethylene glycol, propylene glycol, butylene glycol, and glycerol.

[0013] Another object of the present invention is to protect the preparation method of the above-mentioned graphene air purifier, the steps are as follows:

[0014] S1.Cu 2 O ternary composite material was ball milled to obtain Cu 2 Oternary composite nanomaterials;

[0015] S2. Adding a fungicide and mildew preventer, a plant extract, a dispersant, xanthan gum, a graphene dispersion, and an alcohol ester twelve were stirred and mixed to obtain a mixed solution;

[0016] S3. Add Cu to the mixture 2 O ternary composite nanomaterial is ultrasonically dispersed to obtain the graphene air purifier.

[0017] Preferably, in step S1, the ball milling is performed at a rotation speed of 800-900 rpm for 24-26 hours; in step S2, the stirring and mixing is performed at a stirring rate of 100-120 rpm for 4-6 hours.

[0018] Preferably, in step S2, the ultrasonic dispersion time is 2-3 hours.

[0019] The beneficial effects of the present invention are embodied in:

[0020] (1) The graphene air purifier provided by the present invention can effectively absorb harmful gases in the air, and graphene and Cu 2 The combination of O ternary composite materials is conducive to the transfer of electrons, improves photocatalytic performance, has high catalytic efficiency, and can effectively remove harmful gases such as formaldehyde in the air; the graphene air purifier provided by the present invention also has excellent antibacterial and mildew-proof properties, a fragrant smell, can resist inflammation, improve human respiratory function, and prevent respiratory system infections.

[0021] (2) The preparation method of the graphene air purifier provided by the present invention is simple to operate, has stable technology, and has readily available raw materials. The prepared graphene air purifier has excellent effects and is highly worth promoting. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the present invention are described in detail. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0023] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0024] Example 1

[0025] This embodiment provides a graphene air purifier, including the following raw material components in parts by weight: Cu 2 O ternary composite material 1 part, bactericidal and mildewproof agent 0.4 parts, plant extract 2 parts, dispersant 0.6 parts, solvent 75 parts, xanthan gum 0.25 parts, graphene dispersion 6 parts, alcohol ester twelve 0.5 parts.

[0026] The weight concentration of the graphene dispersion liquid is 5%.

[0027] Cu 2 O ternary composite material is Cu with a weight ratio of 1:2:0.5 2 O / TiO 2 / Bi 2 O 3 , Cu 2 O / BiVO 4 / WO 3 、CdS / ZnFe 2 O 4 / Cu 2 O.

[0028] The dispersant is sodium polyacrylate.

[0029] The bactericidal and mildew-proof agent is 2-octyl-4-isothiazoline-3-one, nano silver and fir leaf oil in a weight ratio of 1:1:0.7.

[0030] The plant extract is green tea extract.

[0031] The solvent is ethylene glycol and glycerol in a weight ratio of 1:1.

[0032] This embodiment also provides a method for preparing the above-mentioned graphene air purifier, the steps are as follows:

[0033] S1.Cu 2 O ternary composite material was ball milled to obtain Cu 2 Oternary composite nanomaterials;

[0034] S2. Adding a fungicide and mildew preventer, a plant extract, a dispersant, xanthan gum, a graphene dispersion, and an alcohol ester twelve were stirred and mixed to obtain a mixed solution;

[0035] S3. Add Cu to the mixture 2 O ternary composite nanomaterial is ultrasonically dispersed to obtain the graphene air purifier.

[0036] Wherein, in step S1, the ball milling is performed at a speed of 900 rpm for 24 hours;

[0037] In step S2, stirring and mixing is performed at a stirring rate of 120 rpm for 4 hours.

[0038] In step S3, the ultrasonic dispersion time is 3 hours.

[0039] Example 2

[0040] This embodiment provides a graphene air purifier, comprising the following raw material components in parts by weight:

[0041] Cu 2 O ternary composite material 0.8 parts, bactericidal and mildewproof agent 0.3 parts, plant extract 1.8 parts, dispersant 0.5 parts, solvent 70 parts, xanthan gum 0.2 parts, graphene dispersion 5 parts, alcohol ester twelve 0.4 parts.

[0042] The weight concentration of the graphene dispersion liquid is 5%.

[0043] Cu 2 O ternary composite material is Cu with a weight ratio of 1:2:0.5 2 O / TiO 2 / Bi 2 O 3 , Cu 2 O / BiVO 4 / WO 3 、CdS / ZnFe 2 O4 / Cu 2 O.

[0044] The dispersant is sodium polyacrylate.

[0045] The bactericidal and mildew-proof agent is 2-octyl-4-isothiazoline-3-one, nano silver and fir leaf oil in a weight ratio of 1:1:0.7.

[0046] The plant extract is rose extract.

[0047] The solvent is ethylene glycol and glycerol in a weight ratio of 1:1.

[0048] This embodiment also provides a method for preparing the above-mentioned graphene air purifier, the steps are as follows:

[0049] S1.Cu 2 O ternary composite material was ball milled to obtain Cu 2 Oternary composite nanomaterials;

[0050] S2. Adding a fungicide and mildew preventer, a plant extract, a dispersant, xanthan gum, a graphene dispersion, and an alcohol ester twelve were stirred and mixed to obtain a mixed solution;

[0051] S3. Add Cu to the mixture 2 O ternary composite nanomaterial is ultrasonically dispersed to obtain the graphene air purifier.

[0052] Wherein, in step S1, the ball milling is performed at a speed of 900 rpm for 24 hours;

[0053] In step S2, stirring and mixing is performed at a stirring rate of 120 rpm for 4 hours.

[0054] In step S3, the ultrasonic dispersion time is 3 hours.

[0055] Example 3

[0056] This embodiment provides a graphene air purifier, including the following raw material components in parts by weight: Cu 2 O ternary composite material 1.2 parts, bactericidal and mildewproof agent 0.5 parts, plant extract 2.2 parts, dispersant 0.7 parts, solvent 80 parts, xanthan gum 0.3 parts, graphene dispersion 7 parts, alcohol ester twelve 0.6 parts.

[0057] The weight concentration of the graphene dispersion liquid is 5%.

[0058] Cu 2 O ternary composite material is Cu with a weight ratio of 1:2:0.5 2 O / TiO 2 / Bi 2 O 3 , Cu 2 O / BiVO 4 / WO 3 、CdS / ZnFe 2 O 4 / Cu 2 O.

[0059] The dispersant is sodium polyacrylate.

[0060] The bactericidal and mildew-proof agent is 2-octyl-4-isothiazoline-3-one, nano silver and fir leaf oil in a weight ratio of 1:1:0.7.

[0061] The plant extract is bamboo leaf extract.

[0062] The solvent is ethylene glycol and glycerol in a weight ratio of 1:1.

[0063] This embodiment also provides a method for preparing the above-mentioned graphene air purifier, the steps are as follows:

[0064] S1.Cu 2 O ternary composite material was ball milled to obtain Cu 2 Oternary composite nanomaterials;

[0065] S2. Adding a fungicide and mildew preventer, a plant extract, a dispersant, xanthan gum, a graphene dispersion, and an alcohol ester twelve were stirred and mixed to obtain a mixed solution;

[0066] S3. Add Cu to the mixture 2 O ternary composite nanomaterial is ultrasonically dispersed to obtain the graphene air purifier.

[0067] Wherein, in step S1, the ball milling is performed at a speed of 900 rpm for 24 hours;

[0068] In step S2, stirring and mixing is performed at a stirring rate of 120 rpm for 4 hours.

[0069] In step S3, the ultrasonic dispersion time is 3 hours.

[0070] Test example

[0071] Test the performance of the graphene air purifiers prepared in Examples 1-3

[0072] Test standard: QB / T 2761-2006.

[0073] Test results: See Table 1.

[0074] Table 1

[0075] Example 1 Example 2 Example 3 Formaldehyde removal rate% 99 99 99 TVOC removal rate % 98 97 98 Antibacterial rate% 99 99 99 Antibacterial rate% 99 99 99

[0076] It can be seen from Table 1 that the graphene air purifier provided by the present invention can effectively remove formaldehyde and TVOC in the air, and also has significant antibacterial and antimicrobial effects.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A graphene air purifier, characterized in that: The graphene air purifier comprises the following raw material components in parts by weight: 0.8-1.2 parts of Cu2O ternary composite material, 0.3-0.5 parts of bactericidal and mildew-proof agent, 1.8-2.2 parts of plant extract, 0.5-0.7 parts of dispersant, 70-80 parts of solvent, 0.2-0.3 parts of xanthan gum, 5-7 parts of graphene dispersion, and 0.4-0.6 parts of alcohol ester twelve; The weight concentration of the graphene dispersion is 5%; The Cu2O ternary composite material is a mixture of Cu2O / TiO2 / Bi2O3, Cu2O / BiVO4 / WO3 and CdS / ZnFe2O4 / Cu2O; The dispersant is polyethylene glycol 200 or sodium polyacrylate; The bactericidal and mildewproof agent is 2-octyl-4-isothiazoline-3-one, nano silver and fir leaf oil in a weight ratio of 1:1:0.7; The plant extract is one or more of green tea extract, rose extract and bamboo leaf extract; The solvent is one or more of ethyl acetate, ethylene glycol, propylene glycol, butylene glycol and glycerol.

2. The method for preparing the graphene air purifier according to claim 1, characterized in that: The preparation method comprises the following steps: S1. ball milling the Cu2O ternary composite material to obtain a Cu2O ternary composite nanomaterial; S2. Adding a fungicide and mildew preventer, a plant extract, a dispersant, xanthan gum, a graphene dispersion, and an alcohol ester twelve were stirred and mixed to obtain a mixed solution; S3. Adding Cu2O ternary composite nanomaterial into the mixed solution and performing ultrasonic dispersion to obtain the graphene air purifier.

3. The method for preparing the graphene air purifier according to claim 2, characterized in that: In step S1, the ball milling is performed at a rotation speed of 800-900 rpm for 24-26 hours; in step S2, the stirring and mixing is performed at a stirring speed of 100-120 rpm for 4-6 hours.

4. The method for preparing the graphene air purifier according to claim 2, characterized in that: In step S2, the ultrasonic dispersion time is 2-3 hours.