Indoor VOCs purification material for high humidity environment and preparation method thereof

A purification material and high humidity technology, applied in chemical instruments and methods, separation methods, airgel preparation, etc., can solve the problems of low VOCs efficiency, reduce VOCs adsorption and degradation effect, and not suitable for VOCs purification materials, etc., to reduce Competitive adsorption, good transparency, and high specific surface area

Active Publication Date: 2019-02-01
广东恒利新包装材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the air purification material prepared by the invention is affected by water molecules in a high-humidity environment, and the efficiency of adsorbing and catalytically degrading pollutants such as VOCs in the air is low
[0006] In summary, although the indoor VOCs purification materials prepared by the prior art have high porosity and adsorption capacity, due to the competitive adsorption of water molecules and VOCs, the adsorption and degradation effects of air purification materials on VOCs are reduced. It is not suitable for indoor VOCs purification materials in high humidity environments, so it is of great significance to develop a composite material that can efficiently purify indoor VOCs in high humidity environments

Method used

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  • Indoor VOCs purification material for high humidity environment and preparation method thereof

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Effect test

Embodiment 1

[0031] (1) Add resorcinol, formaldehyde, and anhydrous sodium carbonate to deionized water, stir to completely dissolve, seal and place in an oven for gelation reaction to prepare a phenolic wet gel, and then use tert-butanol repeatedly The liquid and intermediate products in the wet gel were replaced, and then freeze-dried to obtain a phenolic aerogel with high porosity and adsorptivity; the gelation reaction temperature was 89°C and the time was 66 hours; the number of replacements was 7 Times; The parts by weight of each raw material are: 17 parts by weight of resorcinol, 31 parts by weight of formaldehyde, 0.3 parts by weight of anhydrous sodium carbonate, and 51.7 parts by weight of deionized;

[0032] (2) Add butyl titanate and silver nitrate to absolute ethanol to make liquid A, mix glacial acetic acid, hydrochloric acid, absolute ethanol and deionized water to make liquid B, and slowly drip liquid B into A under vigorous stirring In the liquid, stir evenly and then aging,...

Embodiment 2

[0035] (1) Add resorcinol, formaldehyde, and anhydrous sodium carbonate to deionized water, stir to completely dissolve, seal and place in an oven for gelation reaction to prepare a phenolic wet gel, and then use tert-butanol repeatedly The liquid and intermediate products in the wet gel are replaced, and then freeze-dried to obtain a phenolic aerogel with high porosity and adsorption; the gelation reaction temperature is 89°C and the time is 68h; the number of replacements is 5 Times; The parts by weight of each raw material are 16 parts by weight of resorcinol, 29 parts by weight of formaldehyde, 0.3 parts by weight of anhydrous sodium carbonate, and 54.7 parts by weight of deionized water;

[0036] (2) Add butyl titanate and silver nitrate to absolute ethanol to make liquid A, mix glacial acetic acid, hydrochloric acid, absolute ethanol and deionized water to make liquid B, and slowly drip liquid B into A under vigorous stirring In the liquid, stir evenly and then aging, dryin...

Embodiment 3

[0039] (1) Add resorcinol, formaldehyde, and anhydrous sodium carbonate to deionized water, stir to completely dissolve, seal and place in an oven for gelation reaction to prepare a phenolic wet gel, and then use tert-butanol repeatedly The liquid and intermediate products in the wet gel were replaced, and then freeze-dried to obtain a phenolic aerogel with high porosity and adsorption; the gelation reaction temperature was 92℃, and the time was 62h; the number of replacements was 8 Times; The parts by weight of each raw material are 19 parts by weight of resorcinol, 36 parts by weight of formaldehyde, 0.4 parts by weight of anhydrous sodium carbonate, and 44.6 parts by weight of deionized water;

[0040] (2) Add butyl titanate and silver nitrate to absolute ethanol to make liquid A, mix glacial acetic acid, hydrochloric acid, absolute ethanol and deionized water to make liquid B, and slowly drip liquid B into A under vigorous stirring In the liquid, stir evenly and then age, dry...

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Abstract

The invention provides an indoor VOCs purification material for a high humidity environment and a preparation method thereof. The preparation method comprises: preparing high porosity and adsorption effect phenolic aerogel, preparing a silver-doped nano-titanium dioxide photocatalyst, and producing hydrophobic ring crosslinked polyphosphazene microspheres through a polymerization reaction of hexachlorocyclotriphosphazene and bisphenol AF, wherein during the microsphere formation, the photocatalyst is uniformly dispersed on the surface of the aerogel to obtain the indoor VOCs purification material for a high humidity environment. Compared with the conventional purification material, the indoor VOCs purification material can reduce the competitive adsorption of water molecules and VOCs by supporting the photocatalyst on the superhydrophobic surface, and can improve the adsorption amount and adsorption rate of VOCs, can improve photocatalytic degradation efficiency of VOCs and is especially suitable for the adsorption and degradation of indoor VOCs in a high humidity environment.

Description

Technical field [0001] The invention belongs to the technical field of air purification materials, and provides an indoor VOCs purification material used in a high humidity environment and a preparation method. Background technique [0002] VOCs are an important type of indoor air pollutants, mainly including hydrocarbons, aromatic hydrocarbons, alcohols, aldehydes, ketones, lipids, amines and organic acids, etc. The most common ones are formaldehyde, benzene, toluene, and two Toluene, etc. Indoor VOCs directly affect human health and are one of the important metrics for evaluating indoor air quality. [0003] At present, the widely used indoor VOCs and other pollutant purification technologies mainly include: adsorption purification technology, ionization technology, photocatalytic oxidation technology, biological purification technology, plant purification technology, etc. Although the above-mentioned single purification technologies have achieved satisfactory results in the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/02B01J13/00
CPCB01D53/02B01D53/8687B01D2255/104B01D2255/20707B01D2257/708B01J13/0091
Inventor 赵宏伟
Owner 广东恒利新包装材料有限公司
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