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Multifunctional microporous ceramic catalyst and application thereof to air purification

A technology of microporous ceramics and catalysts, applied in the field of air purifier processing, can solve the problems of small volume density, low porosity, low negative ion concentration, etc., achieve scientific and reasonable formula, improve purification efficiency, and good antibacterial effect

Active Publication Date: 2017-08-29
HUNAN YINHE CERAMICS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional microporous ceramic materials have great limitations: 1. The function is single, and it only has the function of sterilizing and inhibiting bacteria, or only has the function of catalytic formaldehyde removal; 2. The porosity is low and the volume density is small, resulting in air pollution The filtering ability is not strong, and it cannot effectively realize the complete filtration of smaller particles (such as PM2.5); 3. It cannot generate negative ions or the concentration of negative ions is too low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] The multifunctional microporous ceramic catalyst is prepared by the following steps: (1) the above-mentioned diatomite, mullite powder, wollastonite powder, medical stone powder, boride, aluminum nitride, bamboo charcoal powder and sodium bicarbonate are mixed according to weight Put the mixture into a ball mill, mix and ball mill for 2 to 4 hours, add water to it according to the solid-to-liquid ratio of 1:0.5 to 0.7, and continue ball milling for 3 to 5 hours to obtain the original slurry;

[0021] (2) ultrasonically disperse titanium dioxide nanotubes in water, prepare a 2-6wt% aqueous dispersion of titanium dioxide nanotubes, then slowly add water-soluble chitosan under vigorous stirring conditions, and stir evenly to obtain a dispersion;

[0022] (3) Mix the above-mentioned original slurry and dispersion liquid evenly under stirring conditions, defoam in vacuum for 2-3 hours, inject the defoamed slurry into the mold, evaporate the water, automatically dry and demoul...

Embodiment 1

[0034] Multifunctional microporous ceramic catalyst, including the following raw materials in parts by weight (kg): 9 parts of diatomite with a particle size of 80um, 16 parts of mullite powder with a particle size of 60um, 12 parts of wollastonite powder with a particle size of 50um, 11 parts of 120um medical stone powder, 15 parts of zirconium diboride with a particle size of 20um, 5 parts of titanium dioxide nanotubes (inner diameter 60nm, length 500nm), 4 parts of aluminum nitride with a particle size of 20um, and 10 parts of bamboo charcoal powder with a particle size of 150um , 3 parts of water-soluble chitosan, 3 parts of sodium bicarbonate and appropriate amount of water.

[0035] The multifunctional microporous ceramic catalyst is prepared by the following steps: (1) the above-mentioned diatomite, mullite powder, wollastonite powder, medical stone powder, zirconium diboride, aluminum nitride, bamboo charcoal powder and sodium bicarbonate are mixed according to weight ...

Embodiment 2

[0041] Multifunctional microporous ceramic catalyst, including the following raw materials in parts by weight (kg): 10 parts of diatomite with a particle size of 120um, 14 parts of mullite powder with a particle size of 100um, 14 parts of wollastonite powder with a particle size of 80um, 11 parts of 150um medical stone powder, 13 parts of titanium diboride with a particle size of 30um, 6 parts of titanium dioxide nanotubes (inner diameter 50nm, length 460nm), 5 parts of aluminum nitride with a particle size of 35um, and 9 parts of bamboo charcoal powder with a particle size of 130um , 2 parts of water-soluble chitosan, 3 parts of sodium bicarbonate and appropriate amount of water.

[0042] The multifunctional microporous ceramic catalyst is prepared by the following steps: (1) the above-mentioned diatomite, mullite powder, wollastonite powder, medical stone powder, titanium diboride, aluminum nitride, bamboo charcoal powder and sodium bicarbonate are mixed according to weight ...

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Abstract

The invention belongs to the technical field of processing of air purifiers, and particularly discloses application of a multifunctional microporous ceramic catalyst to air purification. The multifunctional microporous ceramic catalyst comprises the following raw materials in parts by weight: 8-10 parts of diatomite with the grain size of 40-150 [mu]m, 14-18 parts of mullite powder with the grain size of 50-200 [mu]m, 10-15 parts of wollastonite powder with the grain size of 30-100 [mu]m, 9-15 parts of medical stone powder with the grain size of 100-180 [mu]m, 8-20 parts of a boride with the grain size of 10-50 [mu]m, 3-6 parts of TiO2 nanotubes, 3-5 parts of aluminium nitride with the grain size of 20-60 [mu]m, 7-13 parts of bamboo charcoal powder with the grain size of 80-250 [mu]m, 2-4 parts of water-soluble chitosan, 2-3 parts of sodium bicarbonate and a proper amount of water. The formula is scientific and reasonable, and all components interact, so that the multifunctional microporous ceramic catalyst has various functions of purifying air, degerming, inhibiting bacteria, generating anions and the like, and has a favorable application effect in the air purification aspect.

Description

technical field [0001] The invention belongs to the technical field of air purifier processing, and in particular relates to a multifunctional microporous ceramic catalyst and its application in air purification. Background technique [0002] Microporous ceramics refer to ceramic bodies that contain a large number of open or closed tiny pores inside or on the surface of ceramics. The pore size is generally micron or submicron, and is often used as the main material for air purification and filtration. However, traditional microporous ceramic materials have great limitations: 1. The function is single, and it only has the function of sterilizing and inhibiting bacteria, or only has the function of catalytic formaldehyde removal; 2. The porosity is low and the volume density is small, resulting in air pollution The filtering ability is not strong, and it cannot effectively realize the complete filtration of smaller particles (such as PM2.5); 3. It cannot generate negative ions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J21/18B01J31/38B01J35/10A01N43/16A01P1/00A61L9/22B01D53/86B01D53/72
CPCA61L9/22B01D53/8668A01N43/16B01J21/18B01J27/24B01J31/38B01D2258/06B01J35/653B01J35/657B01J35/651B01J35/39
Inventor 钱桂芳
Owner HUNAN YINHE CERAMICS IND
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