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A kind of interlayer graphene airgel-based catalyst filter material and preparation method thereof

A graphene airgel and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., to achieve the effects of improved denitrification and anti-sulfur capabilities, rapid response, and increased efficiency

Active Publication Date: 2022-04-19
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Carrier-free MnO x The catalyst has the highest low-temperature SCR activity in such reports so far, NO at 120°C x can be converted almost completely to N 2 , but there is no suitable technology to convert Mn-CeO x Successful in situ growth on chlorine-doped graphene airgel composite filter media

Method used

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  • A kind of interlayer graphene airgel-based catalyst filter material and preparation method thereof
  • A kind of interlayer graphene airgel-based catalyst filter material and preparation method thereof
  • A kind of interlayer graphene airgel-based catalyst filter material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A polyphenylene sulfide disc with a diameter of 34mm was placed in 100mL of 5wt% nitric acid solution at 80°C for 4h activation, and after the reaction was completed, it was washed 5 times and dried for later use. Accurately weigh 0.1 g of homemade chlorine-doped graphene oxide sample, dissolve it in 50 mL of dimethylformamide, put the activated polyphenylene sulfide disc in it after ultrasonication for 10 min, stir at room temperature for 10 min, and place the disc After the disc was taken out, it was repeatedly washed with deionized water for 5 times, and then the disc was added to 50 mL of deionized water, and then 0.06 g of SDS was added for ultrasonication for 10 min. After that, 0.1 g of cerium acetate (Ce(Ac) for short) 3 ) into the prepared above solution, put in a stirrer, and stir at room temperature for 1 hour until Ce(Ac) 3 completely dissolved. Then accurately weigh 0.099gKMnO 4 Dissolved in 50mL of deionized water, and then added to the above reaction so...

Embodiment 2

[0038] A polyphenylene sulfide disc with a diameter of 34mm was placed in 100mL of 5wt% nitric acid solution at 80°C for 4h activation, and after the reaction was completed, it was washed 5 times and dried for later use. Accurately weigh 0.1 g of homemade chlorine-doped graphene oxide sample, dissolve it in 50 mL of dimethylformamide, put the activated polyphenylene sulfide disc in it after ultrasonication for 10 min, stir at room temperature for 10 min, and place the disc After the disc was taken out, it was repeatedly washed 5 times with deionized water, then re-added to 50 mL of deionized water, and then 0.06 g of SDS was added for 10 minutes of ultrasonication, and then 0.2 g of cerium acetate (Ce(Ac) for short) 3 ) into the prepared above solution, put in a stirrer, and stir at room temperature for 1 hour until Ce(Ac) 3 completely dissolved. Then accurately weigh 0.199gKMnO 4 Dissolved in 50mL of deionized water, and then added to the above reaction solution. After the ...

Embodiment 3

[0041] A polyphenylene sulfide disc with a diameter of 34mm was placed in 100mL of 5wt% nitric acid solution at 80°C for 4h activation, and after the reaction was completed, it was washed 5 times and dried for later use. Accurately weigh 0.1 g of homemade chlorine-doped graphene oxide sample, dissolve it in 50 mL of dimethylformamide, put the activated polyphenylene sulfide disc in it after ultrasonication for 10 min, stir at room temperature for 10 min, and place the disc After the disc was taken out, it was repeatedly washed 5 times with deionized water, and then the disc was re-added to 50 mL of deionized water, and then 0.06 g of SDS was added for ultrasonication for 10 min. After that, 0.3 g of cerium acetate (Ce(Ac) for short) 3 ) into the prepared above solution, put in a stirrer, and stir at room temperature for 1 hour until Ce(Ac) 3 completely dissolved. Then accurately weigh 0.299gKMnO 4 Dissolved in 50mL of deionized water, and then added to the above reaction sol...

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Abstract

The invention provides an interlayer graphene aerogel-based catalyst filter material and a preparation method thereof. First, thionyl chloride is used to synthesize graphene oxide while doped with chlorine to obtain more Cl functional groups and defects. . After the aerogel is formed, it is adsorbed on the surface of the filter material through dehydration condensation with the oxygen-containing functional groups on the surface of the activated PPS to become an intermediate layer. , which can interact with cerium acetate to convert Ce 3+ Strongly bonded to the surface of chlorine-doped graphene aerogels. Finally, potassium permanganate is used as the oxidant, and a redox reaction occurs on the surface of the chlorine-doped graphene aerogel, so that the manganese-cerium oxide catalyst is grown in situ on the surface of the chlorine-doped graphene aerogel, forming the outermost layer of catalyst layer, and finally prepare a supported interlayer chlorine-doped graphene aerogel composite denitration and anti-sulfur filter material.

Description

technical field [0001] The invention belongs to the technical field of functional composite filter materials, and in particular relates to the preparation of a sandwich-like chlorine-doped graphene composite filter material and the in-situ growth of efficient denitrification and anti-sulfur binary Mn-CeO on its surface x catalyst technology. Background technique [0002] With the rapid development of China's industrialization process, many inevitable pollutions have been produced, among which air pollution is the most serious and the most concerned issue among many pollutions. The generation of air pollution has caused people's life, health, work and social Nature has suffered relatively severe damage. At present, air pollution sources can be divided into fixed pollution sources and mobile pollution sources. The pollutants of the pollution sources are mainly produced by coal combustion, including PM2.5, PM10, sulfur dioxide, nitrogen oxides and nitrogen dioxide, etc. These ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/14B01J23/34B01J27/06B01D53/86B01D53/56B01D46/62B01D46/10
CPCB01D39/14B01J23/34B01J27/06B01D53/8628B01D46/0036B01D46/10B01D2239/0407B01D2239/065B01D2239/10B01D2255/2073B01D2255/2065B01D46/62
Inventor 郑玉婴郑伟杰
Owner FUZHOU UNIV
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