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Preparation method of air purifying material

A technology for air purification materials and preparation steps, which is applied in chemical instruments and methods, separation methods, and air quality improvement, etc., and can solve problems such as inability to decompose organic matter and lack of adsorption.

Active Publication Date: 2018-12-18
上海项醇环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since pure adsorption cannot achieve the purpose of decomposing organic matter, and all adsorbents have a saturated adsorption capacity, they do not have the ability to continue to adsorb after the adsorption is saturated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of an air purification material, mainly comprising the following steps:

[0026] Step 1: Pretreat the silica spheres.

[0027] 1.1 Mix 30g of silica spheres with 500mL of 0.2mol / L hydrochloric acid solution, heat to 85°C, keep warm for 120min, cool, and filter to obtain solid A.

[0028] 1.2 Mix solid A with 300mL of 0.05mol / L ferric chloride solution, heat to 70°C, keep warm for 180min, cool, and filter to obtain solid B.

[0029] 1.3 Dry the solid B at 90°C for 12 hours to obtain pretreated silica spheres.

[0030] Step 2: Prepare vanadium solution.

[0031] 2.1 Add 10g of sodium metavanadate and 7g of sodium dihydrogen phosphate to 280mL of deionized water in sequence, and stir until completely dissolved to form solution A.

[0032] 2.2 Add 1 mol / L hydrochloric acid solution dropwise to solution A with stirring until the pH value of the solution is 5.5 to form solution B.

[0033] 2.3 Add 5g of emulsifier Span-60 and 6g of hexadecyltrimethyla...

Embodiment 2

[0043] A preparation method of an air purification material, mainly comprising the following steps:

[0044] Step 1: Pretreat the silica spheres.

[0045] 1.1 Mix 30g of silica spheres with 500mL of 0.2mol / L hydrochloric acid solution, heat to 85°C, keep warm for 120min, cool, and filter to obtain solid A.

[0046] 1.2 Mix solid A with 300mL of 0.05mol / L ferric chloride solution, heat to 70°C, keep warm for 180min, cool, and filter to obtain solid B.

[0047] 1.3 Dry the solid B at 90°C for 12 hours to obtain pretreated silica spheres.

[0048] Step 2: Prepare vanadium solution.

[0049] 2.1 Add 13g of sodium metavanadate and 8g of sodium dihydrogen phosphate to 310mL of deionized water in sequence, and stir until completely dissolved to form solution A.

[0050] 2.2 Add 1 mol / L hydrochloric acid solution dropwise to solution A with stirring until the pH value of the solution is 5.5 to form solution B.

[0051] 2.3 Add 6g of emulsifier Span-60 and 7g of cetyltrimethylammon...

Embodiment 3

[0061] A preparation method of an air purification material, mainly comprising the following steps:

[0062] Step 1: Pretreat the silica spheres.

[0063] 1.1 Mix 30g of silica spheres with 500mL of 0.2mol / L hydrochloric acid solution, heat to 85°C, keep warm for 120min, cool, and filter to obtain solid A.

[0064] 1.2 Mix solid A with 300mL of 0.05mol / L ferric chloride solution, heat to 70°C, keep warm for 180min, cool, and filter to obtain solid B.

[0065] 1.3 Dry the solid B at 90°C for 12 hours to obtain pretreated silica spheres.

[0066] Step 2: Prepare vanadium solution.

[0067] 2.1 Add 16g of sodium metavanadate and 9g of sodium dihydrogen phosphate to 330mL of deionized water in sequence, and stir until completely dissolved to form solution A.

[0068] 2.2 Add 1 mol / L hydrochloric acid solution dropwise to solution A with stirring until the pH value of the solution is 5.5 to form solution B.

[0069] 2.3 Add 7g of emulsifier Span-60 and 9g of cetyltrimethylammon...

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Abstract

The invention relates to a preparation method of an air purifying material, which belongs to the field of an air purifying materials. The preparation method comprises the following steps: separately preprocessing silicon dioxide spheres in a hydrochloric acid solution and a ferric trichloride solution; adjusting the pH value by using sodium metavanadate and sodium dihydrogen phosphate, then addingSpan-60 and hexadecyl trimethyl ammonium chloride, and preparing a vanadium solution; and performing the hydrothermal synthetic reaction for on the preprocessed silicon dioxide spheres and thevanadium solution, drying, calcining,and to obtaining the air purifying material. The air purifying material adopts the silicon dioxide spheres as a matrix, the silicon dioxide spheres are coated with an iron vanadate photocatalyst, the specific surface area is large, the pressure resistingcompressive strength is high, and various volatile organic pollutants in the indoor air can be removed.

Description

technical field [0001] The invention belongs to the field of air purification materials, and in particular relates to a preparation method of air purification materials. Background technique [0002] Indoor air pollution is widely concerned by people, and it is also an important environmental problem that must be seriously solved. Conventional treatment methods include adsorption and oxidation, among which adsorption is simply to adsorb the pollutants in the indoor air on the adsorbent, and cannot degrade the pollutants. The main pollutants in indoor air are volatile organic compounds including benzene series and formaldehyde, which are produced by interior decoration and are difficult to completely remove in a short time. This is because many volatile organic pollutants have a slow release process, and the release cycle can last for several years. Since pure adsorption cannot achieve the purpose of decomposing organic matter, and all adsorbents have a saturated adsorption...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/44
CPCB01D53/8687B01D2255/802B01D2257/708Y02A50/20
Inventor 张文杰
Owner 上海项醇环保科技有限公司
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