Preparation method of indoor air pollutant scavenger, scavenger and application thereof

A technology of indoor air and scavenger, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve the problems of ineffective function and narrow ultraviolet light absorption range, achieve long-lasting effect, improve stability and compatibility strong effect

Inactive Publication Date: 2019-02-15
大连宜安科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects that the existing photocatalyst scavenger has a narrow ultraviolet light absorption range and cannot effectively play a role in the indoor environment. In order to achieve this purpose, the first aspect of the present invention provides a preparation of an indoor air pollutant scavenger Method, described preparation method comprises the following steps:

Method used

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  • Preparation method of indoor air pollutant scavenger, scavenger and application thereof
  • Preparation method of indoor air pollutant scavenger, scavenger and application thereof
  • Preparation method of indoor air pollutant scavenger, scavenger and application thereof

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preparation example Construction

[0013] The first aspect of the present invention provides a kind of preparation method of indoor air pollutant scavenging agent, and described preparation method comprises the following steps:

[0014] S1. Co-dissolve the metal ion salt and titanate in absolute ethanol to obtain a mixed solution A, and mix the mixed solution A with water to make TiOH 4 Sol, the metal ion salt is selected from molybdate and / or tungstate;

[0015] S2. heating the TiOH at 60-100°C 4 Sol 4 ~ 12h to make visible light photocatalyst hydrosol;

[0016] S3. Dissolving the high-efficiency penetrating agent and the formaldehyde trapping agent in water to make a mixed solution B;

[0017] S4. Mixing the visible light photocatalyst hydrosol with the mixed solution B to prepare the mixed solution C;

[0018] S5. Add nano-silver colloid to the mixed solution C and stir evenly to prepare an indoor air pollutant scavenger.

[0019] In general photocatalyst scavengers, titanium ions can only absorb ultravi...

Embodiment 1

[0033] Take 20mL n-tetrabutyl titanate, 0.32g WCl 6 Dissolve in 50mL absolute ethanol to obtain mixed solution A, slowly drop mixed solution A into 500mL water, stir while dripping to obtain TiOH 4 Sol; the TiOH 4 The sol was heated in a water bath at 80°C for 8 hours to make a visible light photocatalyst hydrosol.

[0034] Take 1g of JFC high-efficiency penetrant and 6g of the compound represented by formula (14) into 42.5g of water, and stir evenly to obtain a mixed solution B.

[0035]

[0036] Take 60g of the visible light photocatalyst hydrosol and add it to the mixed solution B and stir to obtain a mixed solution C. Add 0.5g of nano-silver colloid to the mixed solution C and stir for 10 minutes to obtain the indoor air pollutant scavenger of this embodiment.

Embodiment 2

[0038] Take 10mL n-tetrabutyl titanate, 0.14g MoCl 5 Dissolve in 50mL absolute ethanol to obtain mixed solution A, slowly drop mixed solution A into 500mL water, stir while dripping to obtain TiOH 4 Sol; the TiOH 4 The sol was heated in a water bath at 80°C for 8 hours to make a visible light photocatalyst hydrosol.

[0039] Take 0.5g of JFC high-efficiency penetrant and 6g of the compound represented by formula (15) into 43g of water, and stir evenly to obtain a mixed solution B.

[0040]

[0041]Take 50 g of the visible light photocatalyst hydrosol and add it to the mixed solution B and stir to obtain the mixed solution C. Add 0.5 g of nano-silver colloid to the mixed solution C and stir for 10 minutes to obtain the indoor air pollutant scavenger of this embodiment.

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Abstract

The invention provides a preparation method of an indoor air pollutant scavenger, the scavenger and application thereof. The preparation method comprises the following steps: S1, dissolving metal ionsalt and titanate into anhydrous ethanol, so as to obtain mixed liquor A, mixing the mixed liquor A and water to form TiOH4 sol, and ensuring that the metal ion salt is selected from molybdate and/ortungstate; S2, heating the TiOH4 sol, so as to form visible light photocatalyst hydrosol; S3, dissolving a high efficiency penetrant and a formaldehyde scavenger into water, so as to form mixed liquorB; S4, mixing the visible light photocatalyst hydrosol and the mixed liquor B, so as to form mixed liquor C; and S5, adding nano-silver colloid into the mixed liquor C, and uniformly stirring, so asto form the indoor air pollutant scavenger. The preparation method has the advantages that molybdenum ion and/or tungsten ion is directly doped during titanium hydrolysis, and can stably exist withouta dispersant, absorption wavelength is broadened to be 550 nm from smaller than 388 nm, and the capacity for treating gaseous pollutants is promoted by more than three times.

Description

technical field [0001] The invention relates to the technical field of air pollution scavenger, more specifically, to a preparation method of an indoor air pollutant scavenger, the scavenger and its application. Background technique [0002] At present, with the improvement of people's living standards, home decoration has become quite common, followed by indoor air pollution and the resulting odor caused by the decomposition or volatilization of chemical components contained in home decoration materials. Gaseous pollutants mainly come from formaldehyde, benzene series substances and TVOC (Total Volatile Organic Compound) in decoration materials. Among them, formaldehyde produced in decoration is the most toxic and has a greater impact. The harm of formaldehyde lies not only in its toxicity, but also in its long release period. Research by Yokohama National University in Japan shows that its release period can be as long as 3-15 years. Although benzene series substances an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/72B01D53/58
CPCB01D53/007B01D53/8634B01D53/864B01D53/8668B01D2255/20707B01D2255/20769B01D2255/20776B01D2255/802B01D2257/7027B01D2257/704B01D2259/4508B01D2259/802
Inventor 王芳芳彭聪徐磊王智
Owner 大连宜安科技有限公司
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