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Cu-OMS-2 catalyst capable of effectively removing formaldehyde in real environment and preparation method of Cu-OMS-2 catalyst

A real-environment, cu-oms-2 technology, applied in catalyst activation/preparation, molecular sieve catalysts, chemical instruments and methods, etc., can solve problems such as unusable catalysts, achieve low manufacturing cost, large processing capacity, and simple preparation process Effect

Inactive Publication Date: 2018-05-04
郑州三希新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a Cu-OMS-2 catalyst that can effectively remove formaldehyde in a real environment and its preparation method, which has solved the problem that the existing catalyst cannot be used in a real environment containing water vapor

Method used

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  • Cu-OMS-2 catalyst capable of effectively removing formaldehyde in real environment and preparation method of Cu-OMS-2 catalyst
  • Cu-OMS-2 catalyst capable of effectively removing formaldehyde in real environment and preparation method of Cu-OMS-2 catalyst
  • Cu-OMS-2 catalyst capable of effectively removing formaldehyde in real environment and preparation method of Cu-OMS-2 catalyst

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Effect test

Embodiment 1

[0030] A method for preparing a Cu-OMS-2 catalyst capable of effectively removing formaldehyde under a real environment, comprising the following steps:

[0031] (1) According to the molar ratio (5-40): (1-3): (0.5-1): (2-20) take bromoalkylimidazole ionic liquid, MnSO 4 ·H 2 O, KMnO 4 and CuSO 4 ·5H 2 O;

[0032] (2) Heat and melt the bromoalkylimidazolium ionic liquid first, then add MnSO 4 ·H 2 O, KMnO 4 and CuSO 4 ·5H 2 O, heat up to 180-240°C for 0.5-4h;

[0033] (3) After the reaction, the product is separated, washed and dried to obtain Cu-OMS-2 molecular sieve with regular nanofiber-like morphology.

Embodiment 2

[0035] Weigh 150.211g (0.786mol) 1-ethyl-3-methylimidazolium bromide ionic liquid (molecular weight 191), 19.353g (0.114mol) MnSO 4 ·H 2 O (molecular weight 169), 14.762g (0.093mol) KMnO 4 (molecular weight 158), 189.886g (0.760mol) CuSO 4 ·5H 2 O (molecular weight 250). First, add 1-ethyl-3-methylimidazolium bromide ionic liquid into a 500ml three-neck flask, place it on an IKA oil bath magnetic stirrer, heat it to 100°C under the stirring condition of 500r / min, and then add MnSO 4 ·H 2 O, KMnO 4 and CuSO4 ·5H 2 O, then raise the temperature to 200°C within 30min and react for 1h. After the reaction, separate the solid product from the excess 1-ethyl-3-methylimidazolium bromide ionic liquid, wash the product with water and cold ethanol, and store the product at 110°C After drying for 12 hours, Cu-OMS-2 molecular sieve doped with copper was obtained. Its XRD results are attached figure 1 (marked as Cu-OMS-2-2#), SEM results are attached figure 2 , and the evaluation...

Embodiment 3

[0037] Weigh 220.561g (1.006mol) 1-butyl-3-methylimidazolium bromide ionic liquid (molecular weight 219.2), 20.887g (0.124mol) MnSO 4 ·H 2 O, 14.232g (0.090mol) KMnO 4 , 190.816g (0.763mol) CuSO 4 ·5H 2 O. First, add 1-butyl-3-methylimidazolium bromide ionic liquid into a 500ml three-necked flask, place it on an IKA oil bath magnetic stirrer, and heat it to 110°C under the stirring condition of 500r / min. After the temperature reaches, add MnSO 4 ·H2O 、KMnO 4 and CuSO 4 ·5H 2 O, then raise the temperature to 210°C within 40min and react for 1.5h. After the reaction, separate the solid product from the 1-butyl-3-methylimidazolium bromide ionic liquid, wash the product with water and cold ethanol, and dry it at 110°C for 12h , that is, Cu-OMS-2 molecular sieve doped with copper is obtained, and the XRD results are shown in the attached figure 1 (marked as Cu-OMS-2-3#), SEM results are attached image 3 , and the evaluation results of its catalytic oxidation performance t...

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Abstract

The invention discloses a Cu-OMS-2 catalyst capable of effectively removing formaldehyde in a real environment and a preparation method of the Cu-OMS-2 catalyst. The preparation method comprises the following steps: (1) preparing a bromo-alkyl imidazole ionic liquid, MnSO4.H2O, KMnO4 and CuSO4.5H2O according to a mole ratio of (5-40):(1-3):(0.5-1):(2-20); (2) firstly heating and melting the bromo-alkyl imidazole ionic liquid, sequentially adding MnSO4.H2O, KMnO4 and CuSO4.5H2O, heating to 180-240 DEG C, and performing a reaction for 0.5-4 hours; (3) after the reaction ends, separating, washingand drying the product, thereby obtaining the Cu-OMS-2 molecular sieve with regular nano fiber morphology. The catalyst can implement catalytic oxidation degradation on formaldehyde in a real gas environment with moisture at a room temperature, and is high in treatment efficiency, large in treatment capacity, free of secondary pollution and free of problems such as adsorption saturation.

Description

technical field [0001] The invention belongs to the technical field of formaldehyde-removing catalysts, in particular to a Cu-OMS-2 catalyst capable of effectively removing formaldehyde in a real environment and a preparation method thereof. Background technique [0002] At present, the methods commonly used to remove formaldehyde pollutants in the air include: adsorption method, photocatalysis method, chemical catalytic oxidation method and plasma method. Compared with several other methods, the chemical catalytic oxidation method has very obvious advantages. For example, the catalyst does not need additional light or electricity to convert formaldehyde in the air into harmless carbon dioxide and water; the conversion efficiency of formaldehyde is high, and there is no There are no problems such as secondary pollution and adsorption saturation, and it is especially effective in dealing with low-concentration formaldehyde. [0003] However, in the real indoor air environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/00B01J23/889B01J35/06B01J37/03B01D53/86B01D53/72
CPCB01D53/8668B01J23/8892B01J29/00B01J37/031B01J35/58B01J35/23
Inventor 王柯陶向辉
Owner 郑州三希新材料科技有限公司
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