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Multi-void organic volatile adsorption nano calcium carbonate composite material and preparation method thereof

A technology of nano-calcium carbonate and organic volatiles, applied in the direction of botanical equipment and methods, separation methods, chemical instruments and methods, etc., can solve the problems of reducing the use efficiency of photocatalysts, failing to achieve the purpose of removal, and single photocatalysts. Achieve good oxidation and sterilization effects, long duration and good recyclability

Inactive Publication Date: 2018-10-12
厦门埃菲铁件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, activated carbon adsorption and titanium dioxide photocatalysis are commonly used methods in indoor air purification, but at present, ordinary activated carbon is used for adsorption and removal, or a single photocatalyst is used for catalytic degradation
Harmful substances such as indoor organic volatiles have the characteristics of low concentration, long-term existence and slow release. When ordinary activated carbon is used as an adsorbent, because of the lack of functional groups on the surface that can adsorb and degrade organic volatiles, it is used in indoor air purification. It is easy to reach saturation, so the effect of using ordinary activated carbon to adsorb low-concentration organic volatiles in the room is poor; using a single photocatalyst will easily cause the agglomeration of the powder, resulting in the loss of the photocatalytic effect and the removal purpose. There are certain conditions for the catalyst, and it needs to be irradiated in the corresponding light wavelength range to achieve the removal effect, thus reducing the use of photocatalysts in indoor air purification.

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  • Multi-void organic volatile adsorption nano calcium carbonate composite material and preparation method thereof

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Embodiment 1

[0026] In this embodiment, the multi-void nano-calcium carbonate composite material for adsorbing organic volatiles is made of the following raw materials in parts by weight: 50 parts of nano-calcium carbonate, 50 parts of modified kaolin, 10 parts of simethicone, 15 parts of bamboo charcoal, and tripolyphosphoric acid 10 parts of sodium, 100 parts of ethanol, 12 parts of methylcellulose, 7 parts of hydroxyapatite, 8 parts of fungicide;

[0027] Among them, the fungicide is composed of calcium hypochlorite, nano-titanium dioxide, and β-cyclodextrin mixed according to the mass ratio of 1:1:0.3; the particle size of nano-calcium carbonate is 60nm, and nano-calcium carbonate is modified nano-calcium carbonate. The method is as follows: 70ml of 0.5mol / L calcium nitrate and 70ml of 0.5mol / L sodium carbonate were stirred and reacted at 40°C for 20 minutes, the stirring was stopped, and the precipitates were separated, washed, and dried in turn to obtain nano-calcium carbonate; The m...

Embodiment 2

[0034] In this embodiment, the multi-void nano-calcium carbonate composite material for adsorbing organic volatiles is made of the following raw materials in parts by weight: 90 parts of nano-calcium carbonate, 90 parts of modified kaolin, 25 parts of simethicone, 30 parts of bamboo charcoal, and tripolyphosphoric acid 16 parts of sodium, 200 parts of ethanol, 18 parts of methylcellulose, 16 parts of hydroxyapatite, 15 parts of fungicide;

[0035]Among them, the fungicide is composed of calcium hypochlorite, nano-titanium dioxide, and β-cyclodextrin mixed according to the mass ratio of 1:1:0.3; the particle size of nano-calcium carbonate is 100nm, and nano-calcium carbonate is modified nano-calcium carbonate. The method is as follows: 70ml of 0.5mol / L calcium nitrate and 70ml of 0.5mol / L sodium carbonate are stirred and reacted at 40°C for 30 minutes, the stirring is stopped, and the precipitates are separated, washed, and dried in turn to obtain nano-calcium carbonate; The mo...

Embodiment 3

[0042] In this embodiment, the multi-void nano-calcium carbonate composite material for adsorbing organic volatiles is made of the following raw materials in parts by weight: 70 parts of nano-calcium carbonate, 70 parts of modified kaolin, 18 parts of simethicone, 23 parts of bamboo charcoal, and tripolyphosphoric acid 13 parts of sodium, 150 parts of ethanol, 15 parts of methyl cellulose, 12 parts of hydroxyapatite, 11 parts of fungicide;

[0043] Among them, the bactericide is composed of calcium hypochlorite, nano-titanium dioxide, and β-cyclodextrin mixed according to the mass ratio of 1:1:0.3; the particle size of nano-calcium carbonate is 80nm, and nano-calcium carbonate is modified nano-calcium carbonate. The method is as follows: 70ml of 0.5mol / L calcium nitrate and 70ml of 0.5mol / L sodium carbonate were stirred and reacted at 40°C for 25 minutes, the stirring was stopped, and the precipitates were separated, washed, and dried in turn to obtain nano-calcium carbonate; ...

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Abstract

The invention provides a multi-void organic volatile adsorption nano calcium carbonate composite material and a preparation method thereof, and the multi-void organic volatile adsorption nano calciumcarbonate composite material is made of the following raw materials: nano calcium carbonate, modified kaolin, dimethyl silicone oil, bamboo charcoal, sodium tripolyphosphate, ethanol, methyl cellulose, carbon hydroxyapatite and a fungicide. The multi-void organic volatile adsorption nano calcium carbonate composite material has strong adsorption capacity for organic volatiles in indoor air and high formaldehyde removal rate, has good air purifying effect, long continuous period and good cycleability, and is a multi-void material that is cheap, green, and environmentally-friendly and does not cause secondary pollution.

Description

technical field [0001] The invention relates to the technical field of air pollution control and environmental protection, and relates to a multi-void nanometer calcium carbonate composite material for absorbing organic volatiles and a preparation method thereof. Background technique [0002] At present, after home decoration is completed, various decoration materials, carpets, furniture, fabrics, boards, etc. will volatilize many harmful pollutants, mainly including volatile organic compounds, accompanied by floating bacteria and viruses, etc., resulting in very difficult indoor environment. Smell. Volatile organic compounds (VOC for short) usually refer to organic compounds that are easy to volatilize at room temperature, and the more common ones are benzene, formaldehyde, TVOC (6-16 carbon alkanes), ketones, etc. These volatiles are volatile and lipophilic, but VOC has a huge impact on human health. According to the statistics of professional testing agencies, the rate o...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30B01D53/81B01D53/72A01N59/06A01N59/16A01P1/00A01P3/00
CPCA01N59/06A01N59/16B01D53/72B01D53/81B01D2251/108B01D2257/708B01D2257/91B01J20/043B01J20/048B01J20/12B01J20/20B01J20/24B01J20/262B01J2220/46B01J2220/4806B01J2220/4812B01J2220/4825
Inventor 陈峰诚
Owner 厦门埃菲铁件有限公司
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