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Triple-effect all-weather photocatalyst indoor air purifying agent as well as preparation method and application thereof

An indoor air, all-weather technology, applied in the direction of chemical instruments and methods, botany equipment and methods, applications, etc., can solve the problems of indoor air pollution, low purification efficiency, formaldehyde pollution, etc., and achieve the effect of simple process and high purification efficiency

Inactive Publication Date: 2018-07-06
广州市凯卫莎环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that these two resin adhesives will undergo a reversible reaction with changes in ambient temperature, moisture and other conditions, and re-crack to release formaldehyde, causing indoor air pollution, which is the main source of indoor formaldehyde pollution.
[0005] At present, there are various air purification products with photocatalyst as the main material on the market, but these products can only slowly decompose harmful substances under the conditions of sunlight, ultraviolet light and visible light, and cannot instantly clear a large amount of formaldehyde in the air. The efficiency is relatively low, and it stops working when there is no light at night

Method used

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  • Triple-effect all-weather photocatalyst indoor air purifying agent as well as preparation method and application thereof
  • Triple-effect all-weather photocatalyst indoor air purifying agent as well as preparation method and application thereof
  • Triple-effect all-weather photocatalyst indoor air purifying agent as well as preparation method and application thereof

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preparation example Construction

[0046] The embodiment of the present invention provides a kind of preparation method of above-mentioned three-effect all-weather photocatalyst indoor air purifier, and it comprises the following steps:

[0047] S1. Make titanium dioxide / diatomite composite material from nano-scale anatase-type titanium dioxide and nano-pore diatomite. Since nano-scale titanium dioxide is easy to agglomerate, first attach nano-scale anatase-type titanium dioxide to the surface of nano-pore diatomite , can avoid the agglomeration of titanium dioxide and ensure its uniform distribution.

[0048] The concrete preparation method of titanium dioxide / diatomite composite material is as follows:

[0049] Dispersing nano-scale anatase-type titanium dioxide and nano-pore diatomite in urea aqueous solution or urea and silver nitrate aqueous solution with a mass concentration of urea and silver nitrate of 10% to 30%, stirring and impregnating at normal temperature for 1 to 3 hours.

[0050] The impregnate...

Embodiment 1

[0068] The present embodiment provides a kind of three-effect all-weather photocatalyst indoor air purifier, and it is to make according to following preparation method:

[0069] Prepare raw materials: 2kg nano-scale anatase-type titanium dioxide; 4kg nano-sized diatomaceous earth; 15kg persimmon extract; 2kg octylisothiazolinone; 2kg dispersant; 250kg deionized water.

[0070] Disperse 2 kg of nano-scale anatase-type titanium dioxide and 4 kg of nano-pore diatomaceous earth in aqueous urea solution, stir and impregnate at room temperature for 2 hours. The impregnated solution was transferred to an evaporator and dried at 70 °C. The dried product was placed in a calciner, and calcined for 3 hours at a temperature of 450°C. After the calcined product is cooled to room temperature, it is dispersed and depolymerized to obtain a titanium dioxide / diatomite composite material.

[0071] Add 2kg dispersant to 150kg deionized water, disperse and dissolve at 4000rpm / min, then add tita...

Embodiment 2

[0073] The present embodiment provides a kind of three-effect all-weather photocatalyst indoor air purifier, and it is to make according to following preparation method:

[0074] Prepare raw materials: 3kg nano-scale anatase-type titanium dioxide; 6kg nano-sized diatomaceous earth; 20kg persimmon extract; 3kg octylisothiazolinone; 3kg dispersant; 15kg nano-scale modified silicate crystals; 300kg deionized water.

[0075] Disperse 3 kg of nano-scale anatase-type titanium dioxide and 6 kg of nano-pore diatomite in an aqueous solution of urea and silver nitrate with a mass concentration of 20% of urea and silver nitrate, and stir and impregnate at room temperature for 3 hours. The impregnated solution was transferred to a freeze dryer and freeze-dried at -20 °C. The dried product was placed in a calciner and calcined at 500°C for 2h. After the calcined product is cooled to room temperature, it is dispersed and depolymerized to obtain a titanium dioxide / diatomite composite materi...

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Abstract

The invention provides a triple-effect all-weather photocatalyst indoor air purifying agent as well as a preparation method and application thereof and relates to the field of air purification of living rooms, offices, public facilities, transportation means and the like. The indoor air purifying agent is prepared from the following raw materials: 0.5 to 5 parts of nano-grade anatase type titaniumdioxide, 1 to 8 parts of nano pore-diameter diatomite, 3 to 30 parts of persimmon extract, 0.5 to 5 parts of octylisothiazolinone, 0.5 to 5 parts of dispersant and 200 to 350 parts of de-ionized water. The indoor air purifying agent provided by the invention has sterilization and mildew prevention, deodorization, self-cleaning, formaldehyde, tribenzene, chlorinated gas purification functions andthe like, and has high purification efficiency; the indoor air purifying agent can be used for effectively degrading harmful gas in the air and killing various bacteria and can be used for carrying out decomposition and harmless treatment on toxins released by bacteria or fungi. The preparation method has a simple technology and is suitable for industrial production. The application of the indoorair purifying agent is to spray the indoor air purifying agent on the surface of an object and a very thin transparent coating film is formed on the surface of the object.

Description

technical field [0001] The invention relates to the fields of air purification in living rooms, offices, public facilities, vehicles, etc., and in particular to a three-effect all-weather photocatalyst indoor air purifier and its preparation method and application. Background technique [0002] With the development of social economy and the improvement of living standards, people put forward higher requirements for working and living conditions. The use of a large number of new building materials and decorative materials has created a stylish, beautiful, convenient and comfortable living space for modern people, but it is also accompanied by serious indoor air pollution, especially formaldehyde pollution. At present, indoor formaldehyde mainly comes from the following aspects: [0003] (1) Adhesives: Adhesives commonly used in building materials mainly include "urea-formaldehyde resin" and "melamine-formaldehyde resin". These two adhesives are the condensation products of u...

Claims

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Application Information

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IPC IPC(8): A01N65/08A01N59/16A01N43/80A01P1/00A01P3/00B01D53/86B01D53/72C09D1/00C09D5/14
CPCA01N43/80A01N59/16A01N65/00A01N65/08B01D53/8668B01D2258/06C09D1/00C09D5/14
Inventor 高理中
Owner 广州市凯卫莎环保科技有限公司
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