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A kind of preparation method of air purification material

A technology of air purification materials and preparation steps, which is applied in chemical instruments and methods, separation methods, air quality improvement, etc., and can solve the problems of no adsorption and inability to decompose organic matter, etc.

Active Publication Date: 2021-02-09
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

A method for preparing an air purification material, belonging to the field of air purification materials, comprising the following process steps: pretreating silicon dioxide balls in hydrochloric acid solution and ferric chloride solution respectively; using sodium metavanadate, sodium dihydrogen phosphate and adjust its pH value, and then add Span‑60 and cetyltrimethylammonium chloride to prepare vanadium solution; carry out hydrothermal synthesis reaction of pretreated silica balls and vanadium solution, and make it after drying and calcining Air purification material. The material is based on silica spheres, coated with ferric vanadate photocatalyst on the silica spheres, has a large specific surface area and high compressive strength, and can remove various volatile organic pollutants in indoor air.

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 Patents(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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