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A kind of preparation method of formaldehyde purification material

A technology for formaldehyde purification and solid materials, applied in chemical instruments and methods, separation methods, molecular sieve catalysts, etc., can solve the problem of low formaldehyde purification rate and achieve the effect of ensuring adsorption

Active Publication Date: 2021-11-12
上海孺子牛环保科技有限公司
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Problems solved by technology

[0004] In view of the above problems, the present invention provides a purification material for purifying formaldehyde gas in indoor air, which overcomes the technical problem of low formaldehyde purification rate caused by the competitive adsorption of various polluting gases on the adsorption material

Method used

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  • A kind of preparation method of formaldehyde purification material

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Embodiment 1

[0023] (1) Crush amantadine into granules and put it into a beaker, add appropriate amount of ethylenediamine and water, and use an ultrasonic cell disruptor to sonicate it for 15 minutes, set the frequency to 20kHz, and the power to 900w. After ultrasonic treatment, place the beaker in the ice-water mixture, add the rotor after it cools down, and add appropriate amount of silica sol and H2PtCl4 solution dropwise under stirring state. After the dropwise addition, the beaker was stirred and heated to 90° C. and kept for 30 min to form a synthetic solution with a molar ratio of amantadine:silicon source:noble metal source:ethylenediamine:water of 47:100:10:400:11240.

[0024] (2) Add the pre-prepared DD3R molecular sieve particles (particle size: 300nm) to the synthesis solution at a mass ratio of 0.5% after ball milling, and place the synthesis solution in a microwave reactor, and under microwave conditions The hydrothermal synthesis was carried out under stirring for 72 hours ...

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Abstract

The invention provides a method for preparing a formaldehyde purification material. The formaldehyde purification material prepared by the method is composed of a DD3R molecular sieve and a noble metal active component. The mass fraction of the molecular sieve is 90-95% based on the type of catalyst, and the noble metal The mass fraction of active components is 5‑10%. The present invention ensures the preferential adsorption and decomposition of the formaldehyde in the gas by selecting the adsorption carrier of the noble metal active component, thereby ensuring the decomposition and purification rate of the formaldehyde.

Description

technical field [0001] The present application relates to a preparation method of an air purification material, in particular to a preparation method of a special purification material for formaldehyde containing various types of polluting gases at room temperature. Background technique [0002] Newly renovated houses will release harmful substances such as formaldehyde, benzene, toluene, xylene, etc. These harmful substances are particularly harmful to the human body, and long-term exposure will seriously affect human health and even endanger life. Compared with the release period of other types of polluting gases as low as 6 months, the release period of formaldehyde is longer, or as long as 3-15 years. Therefore, after several months of ventilation and deodorization after the house decoration, it is necessary to give priority to the purification of formaldehyde in the room. Commonly used removal methods for formaldehyde pollutants include physical adsorption (such as act...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/03B01D53/86B01D53/72
CPCB01D53/8668B01J29/0325
Inventor 不公告发明人
Owner 上海孺子牛环保科技有限公司
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