MOF-based cotton cloth immobilized polyacid catalytic material as well as preparation method and application thereof

A technology of polyacid catalysis and acid catalyst, which is applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc. Simple process effect

Pending Publication Date: 2021-03-19
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the present invention provides a MOF-based cotton immobilized polyacid catalytic material and its preparation method and application. The MOF-based cotton polyacid catalytic material can be obtained, which can solve the problem of MOF-based polyacid catalytic The problem that the material is not easy to shape, the preparation process is simple, and the prepared MOF-based cotton multi-acid desulfurization catalytic material has a good desulfurization effect when used in gasoline and diesel simulation systems. The prepared cotton cloth @MIL-101-NH2-POM The desulfurization rate can be as high as 100%, and when the cotton cloth @MIL-101-NH2-POM is reused 12 times, its desulfurization rate can still reach 96%

Method used

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  • MOF-based cotton cloth immobilized polyacid catalytic material as well as preparation method and application thereof
  • MOF-based cotton cloth immobilized polyacid catalytic material as well as preparation method and application thereof
  • MOF-based cotton cloth immobilized polyacid catalytic material as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation method of MOF-based cotton cloth immobilized multi-acid catalytic material comprises the following steps:

[0039] Step 1, pretreat the cotton cloth. The pretreatment process is as follows: soak 2 pieces of cotton cloth with a size of 5cm×5cm in 100mL of a mixed solution of water and isopropanol with a volume ratio of 1:4, and stir for 30min. And add 10mL of sodium hydroxide aqueous solution with a mass fraction of 25% at a rate of 2mL / min, stir at 30°C for 1h, then add 4.9g of sodium chloroacetate, stir at 45°C for 3h, take out the cotton cloth, and wash with methanol Rinse 5 times and dry in an oven at 50°C to obtain cotton cloth for use.

[0040] Step 2, using the cotton cloth to be used to prepare MOF-based cotton cloth, specifically includes the following sub-steps:

[0041] (1) The specific preparation process of cotton cloth @MIL-101 is as follows:

[0042] Sub-step 2.1, respectively prepare a DMF solution of 40mmol / L terephthalic acid, a 40mmol...

Embodiment 2

[0057] The preparation method of MOF-based cotton cloth immobilized multi-acid catalytic material comprises the following steps:

[0058] Step 1, pretreat the cotton cloth. The pretreatment process is as follows: soak 2 pieces of cotton cloth with a size of 5cm×5cm in 100mL of a mixed solution of water and isopropanol with a volume ratio of 1:4, and stir for 30min. And add 10mL of sodium hydroxide aqueous solution with a mass fraction of 25% at a rate of 2mL / min, stir at 30°C for 1h, then add 4.9g of sodium chloroacetate, stir at 45°C for 3h, take out the cotton cloth, and wash with methanol Rinse 5 times and dry in an oven at 50°C to obtain cotton cloth for use.

[0059] Step 2, using the cotton cloth to be used to prepare MOF-based cotton cloth, specifically includes the following sub-steps:

[0060] (1) The specific preparation process of cotton cloth @MIL-101 is as follows:

[0061] Sub-step 2.1, respectively prepare a DMF solution of 40mmol / L terephthalic acid, a 40mmol...

Embodiment 3

[0076] The preparation method of MOF-based cotton cloth immobilized multi-acid catalytic material comprises the following steps:

[0077]Step 1, pretreat the cotton cloth. The pretreatment process is as follows: soak 2 pieces of cotton cloth with a size of 5cm×5cm in 100mL of a mixed solution of water and isopropanol with a volume ratio of 1:4, and stir for 30min. And add 10mL of sodium hydroxide aqueous solution with a mass fraction of 25% at a rate of 2mL / min, stir at 30°C for 1h, then add 4.9g of sodium chloroacetate, stir at 45°C for 3h, take out the cotton cloth, and wash with methanol Rinse 5 times and dry in an oven at 50°C to obtain cotton cloth for use.

[0078] Step 2, using the cotton cloth to be used to prepare MOF-based cotton cloth, specifically includes the following sub-steps:

[0079] (1) The specific preparation process of cotton cloth @MIL-101 is as follows:

[0080] Sub-step 2.1, respectively prepare a DMF solution of 40mmol / L terephthalic acid, a 40mmol / ...

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Abstract

The invention relates to the technical field of desulfurization catalytic materials, in particular to an MOF-based cotton cloth immobilized polyacid catalytic material and a preparation method and application thereof.The MOF-based cotton cloth immobilized polyacid catalytic material is prepared from MOF-based cotton cloth and Keggin type phosphorus molybdenum tungsten type polyacid immobilized onthe MOF-based cotton cloth; the MOF-based cotton cloth is cotton cloth and an MOF material growing on the cotton cloth. According to the prepared MOF-based cotton cloth polyacid catalytic material, the problem that the MOF-based polyacid catalytic material is not easy to form can be solved, the preparation process is simple, the prepared MOF-based cotton cloth polyacid desulfurization catalytic material has a good desulfurization effect when used in a gasoline and diesel oil simulation system, and the desulfurization rate of the prepared cotton cloth @MIL-101-NH2-POM can reach up to 100%. Whenthe cotton cloth-coated @MIL-101-NH2-POM is repeatedly used for 12 times, the desulfurization rate of the cotton cloth-coated @MIL-101-NH2-POM can still reach 96%.

Description

technical field [0001] The invention relates to the technical field of desulfurization catalytic materials, in particular to a MOF-based cotton cloth immobilized multi-acid catalytic material and its preparation method and application. Background technique [0002] In recent years, with the occurrence of acid rain and smog in some areas of our country, people have paid more and more attention to environmental issues. Under this background, PM2.5 has become the focus of people's discussion, and the emission of automobile exhaust is the PM2 in the air. One of the main sources of .5, the source directly refers to the fuel quality. A large amount of sulfur-containing substances in oil products will produce a large amount of SOx after combustion, which will not only cause acid rain, but also damage the vehicle exhaust purification device, resulting in increased PM2.5 emissions, which seriously affect the ecological environment and human survival and development. influences. Thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22B01J31/06B01J27/188B01J37/02B01J37/34C10G27/10
CPCB01J31/1691B01J31/069B01J27/188B01J37/0203B01J37/346C10G27/10B01J2531/842B01J2531/0213C10G2300/202
Inventor 李斯文张海艳
Owner CHANGAN UNIV
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