Photocatalyst preparation with function of effectively removing indoor decorative pollution

A photocatalyst and interior decoration technology, applied in gas treatment, dispersed particle separation, membrane technology, etc., to achieve excellent effects, powerful catalysis, and formaldehyde performance improvement

Inactive Publication Date: 2018-04-06
ANHUI ZHONGHONG TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] There is no report on the combination of aloe extract and tea extract for photocatalyst preparation synergist

Method used

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  • Photocatalyst preparation with function of effectively removing indoor decorative pollution

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Effect test

Embodiment 1

[0033] The preparation of embodiment 1 aloe polysaccharide

[0034] Add an ethanol solution with a volume concentration of 80% to the aloe pulp powder, the liquid-solid ratio of the ethanol solution to the aloe pulp powder is 30mL / g, and extract on a constant temperature water bath at 40°C for 2h under magnetic stirring. After filtration, it was concentrated by distillation under reduced pressure, the precipitate was recovered by centrifugation, and the precipitate was washed with a small amount of ethanol. The aloe polysaccharide obtained after drying was placed in a refrigerator at 4° C. for subsequent use.

Embodiment 2

[0035] The preparation of embodiment 2 photocatalyst preparations

[0036] Get 3g of anatase-type nano-titanium dioxide and 0.2g of nano-silver into 66.8g of pure water, mix and stir for 20 minutes to obtain mixed solution 1; get 15g of the aloe polysaccharide prepared in Example 1 into 15g of pure water, stir well, Mixed solution 2 was obtained; the mixed solution 2 was added to the mixed solution 1, and stirred for 20 minutes to obtain the photocatalyst preparation A1 of the present invention.

[0037] Take 3g of anatase-type nano-titanium dioxide and 0.2g of nano-silver into 66.8g of pure water, mix and stir for 20 minutes to obtain a mixed solution 1; take 15g of epigallocatechin gallate and add it to 15g of pure water, and stir evenly , to obtain the mixed solution 2; the mixed solution 2 was added to the mixed solution 1, and stirred for 20 minutes to obtain the photocatalyst preparation A2 of the present invention.

[0038] Get 3g of anatase nano-titanium dioxide and 0...

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Abstract

The invention relates to a photocatalyst preparation with a function of effectively removing indoor decorative pollution. The photocatalyst preparation is prepared from components in percentage by weight as follows: 1%-10% of nano titanium dioxide, 0.1%-1% of nano silver, 1%-20% of a synergist and the balance of pure water, wherein the synergist is selected from aloe polysaccharide and/or epigallocatechin gallate. With the adoption of the photocatalyst preparation, formaldehyde can be efficiently removed, and formaldehyde removing property is improved substantially after addition of the synergist; the components are safe and non-toxic, secondary pollution cannot be produced in a using process, and the photocatalyst preparation is safe and reliable and meets requirements of national environmental protection.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a photocatalyst preparation for removing indoor decoration pollution. Background technique [0002] Formaldehyde is a colorless, pungent-smelling gas that is easily soluble in water. In the indoor environment, formaldehyde mainly comes from various boards, insulating materials and coatings. It is a carcinogenic and teratogenic substance identified by the World Health Organization, and it is also a potential strong mutagenic substance. Long-term exposure to formaldehyde gas will not only cause damage to the contact organs and respiratory system, but also cause chronic poisoning, certain damage to the reproductive system and immune system, and endanger health. Therefore, people are paying more and more attention to the removal of indoor formaldehyde, and a variety of formaldehyde removal products have appeared on the market, among which formaldehyde removers are the most wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/50B01D53/86B01D53/72
CPCB01D53/8668B01D2258/06B01J23/50
Inventor 孙新文
Owner ANHUI ZHONGHONG TECH DEV CO LTD
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