Modified formaldehyde decomposition material taking shell powder as carrier and preparation method thereof

A formaldehyde decomposition and shell powder technology, which is applied in the field of modified formaldehyde decomposition materials and their preparation, can solve the problems of inability to realize formaldehyde decomposition, secondary release of formaldehyde, and high purification costs, so as to facilitate blood oxygen transport and improve oxygen content. , The effect of removing indoor odor

Inactive Publication Date: 2021-08-06
李强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the treatment method of formaldehyde mainly depends on the adsorption of porous materials. Although formaldehyde gas can be absorbed to a certain extent, traditional porous adsorption materials cannot realize the decomposition of formaldehyde. When the adsorption material reaches adsorption saturation, it cannot continue to absorb formaldehyde. At the same time , the regeneration difficulty is high, the purification cost is high, and under higher temperature conditions, it is easy to cause the secondary release of the adsorbed formaldehyde

Method used

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  • Modified formaldehyde decomposition material taking shell powder as carrier and preparation method thereof
  • Modified formaldehyde decomposition material taking shell powder as carrier and preparation method thereof
  • Modified formaldehyde decomposition material taking shell powder as carrier and preparation method thereof

Examples

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Effect test

Embodiment 1

[0026] A modified formaldehyde decomposition material using shell powder as a carrier, the decomposition material uses modified shell powder as a carrier, uses chitooligosaccharides and aminocyclodextrin as a binder, and loads 2-imidazolidinone and ricinoleic acid Zinc and negative ion powder specifically include the following raw materials in parts by mass:

[0027]

[0028] Described negative ion powder is mixed by the mass ratio of nano-hexacyclic stone powder, nano-tourmaline powder, nano-cerium oxide, nano-lanthanum oxide by 1:1.2:0.02:0.03;

[0029] The preparation method of described modified shell powder is:

[0030] 1: Shells are ground to 50 mesh, added in the dilute hydrochloric acid solution of 0.02mol / L, the solid-to-liquid ratio is controlled to be 0.5g / mL, stirred for 10min, filtered, washed, and dried to obtain shell powder;

[0031] II: the shell powder is placed in a muffle furnace, and calcined at 300° C. for 4 hours under a nitrogen atmosphere to obtain...

Embodiment 2

[0038] A modified formaldehyde decomposition material using shell powder as a carrier, the decomposition material uses modified shell powder as a carrier, uses chitooligosaccharides and aminocyclodextrin as a binder, and loads 2-imidazolidinone and ricinoleic acid Zinc and negative ion powder specifically include the following raw materials in parts by mass:

[0039]

[0040]

[0041] Described negative ion powder is mixed by the mass ratio of 1:2:0.03:0.05 by nano hexacyclic powder, nano tourmaline powder, nano cerium oxide, nano lanthanum oxide;

[0042] The preparation method of described modified shell powder is:

[0043] 1: Shells are ground to 75 orders, added in the dilute nitric acid solution of 0.02mol / L, the solid-to-liquid ratio is controlled to be 0.5g / mL, stirred for 15min, filtered, washed, and dried to obtain shell powder;

[0044] II: the shell powder is placed in a muffle furnace, and calcined at 400° C. for 5 hours under a nitrogen atmosphere to obtain...

Embodiment 3

[0051] A modified formaldehyde decomposition material using shell powder as a carrier, the decomposition material uses modified shell powder as a carrier, uses chitooligosaccharides and aminocyclodextrin as a binder, and loads 2-imidazolidinone and ricinoleic acid Zinc and negative ion powder specifically include the following raw materials in parts by mass:

[0052]

[0053] Described negative ion powder is mixed by the mass ratio of 1:3:0.04:0.07 by nano hexacyclic powder, nano tourmaline powder, nano cerium oxide, nano lanthanum oxide;

[0054] The preparation method of described modified shell powder is:

[0055] 1: Shells are ground to 100 orders, added in the formic acid solution of 0.02mol / L, the control solid-liquid ratio is 0.5g / mL, stirred for 15min, after filtering, washing and drying, shell powder is obtained;

[0056] II: the shell powder is placed in a muffle furnace, and calcined at 500° C. for 6 hours under a nitrogen atmosphere to obtain the pretreated she...

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Abstract

The invention discloses a modified formaldehyde decomposition material taking shell powder as a carrier and a preparation method thereof. The decomposition material takes the modified shell powder as the carrier and takes chitosan oligosaccharide and amino cyclodextrin as binders to load 2-imidazolidone, zinc diricinoleate and anion powder. The decomposition material is prepared from the following raw materials in parts by mass: 50-70 parts of modified shell powder, 10-20 parts of chitosan oligosaccharide, 5-15 parts of amino cyclodextrin, 5-10 parts of 2-imidazolidone, 4-8 parts of zinc diricinoleate, 15-25 parts of negative ion powder and 100 parts of deionized water. The modified formaldehyde decomposition material has formaldehyde immobilization and long-acting and lasting degradation effects, nano copper sulfide / silver phosphate heterojunctions grow and are formed on the surface of the shell powder, and the photodegradation performance of the modified shell powder on formaldehyde is remarkably improved.

Description

technical field [0001] The invention belongs to the field of formaldehyde-degrading materials, in particular to a modified formaldehyde-decomposing material with shell powder as a carrier and a preparation method thereof. Background technique [0002] Formaldehyde, commonly known as formaldehyde, is a colorless flammable gas with a suffocating and irritating odor, which is irritating to human eyes and nose. As an important chemical raw material, formic acid is widely used in wood, building materials, rubber, leather, resin, medicine, textile, light industry and other industries. Wallpaper, wood, paint and furniture for decoration can release formaldehyde. Formaldehyde can react with protein in the human body to form nitrogen methylene compounds, denature the protein, and is a type of carcinogen. When the indoor formaldehyde concentration reaches 0.1mg / m 3 When it is used, there will be peculiar smell, which will make people feel uncomfortable, reaching 30mg / m 3 , it will c...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/72B01D53/52B01D53/58B01D53/48B01D53/44F24F8/167F24F8/30F24F8/95B01J27/18B01J35/00B01J35/02
CPCB01D53/8668B01D53/8634B01D53/8612B01D53/8603B01D53/8687F24F3/16B01J27/1817B01D2257/708B01J35/40B01J35/39
Inventor 李强
Owner 李强
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