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Nitrogen-boron co-doped graphene composite denitration sulfur-resistant catalyst and preparation method thereof

A graphene composite and co-doping technology, applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., to achieve the effects of high denitration and sulfur resistance and good sulfur resistance

Active Publication Date: 2020-10-30
FUZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carrier-free MnO x -CeO 2 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 successfully in situ grow it on nitrogen-boron co-doped graphene

Method used

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  • Nitrogen-boron co-doped graphene composite denitration sulfur-resistant catalyst and preparation method thereof
  • Nitrogen-boron co-doped graphene composite denitration sulfur-resistant catalyst and preparation method thereof
  • Nitrogen-boron co-doped graphene composite denitration sulfur-resistant catalyst and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0027] Accurately weigh 0.1g of the above sample of self-made nitrogen-doped graphene oxide, dissolve it in 50mL of deionized water, add 0.06g of polyvinylpyrrolidone (referred to as PVP) after ultrasonication for 10min, and then dissolve 0.055g 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 weigh 0.022g of cobalt chloride (CoCl 2 ), added to the above solution, and continued to stir at room temperature for 1 hour until CoCl 2 completely dissolved. Then accurately weigh 0.100gKMnO 4 Dissolve in 50mL of deionized water, and then add to the above reaction solution. Continue to react at room temperature for 1h, and weigh 0.1g of boric acid (abbreviated as H 3BO 3 ) and 0.1g sodium borohydride (referred to as NaBH 4 ) into the reaction solution, stirred until the boric acid was dissolved, transferred the reaction solution into a polytetrafluoroeth...

Embodiment 2

[0030] Accurately weigh 0.1g of the above sample of self-made nitrogen-doped graphene oxide, dissolve it in 50mL of deionized water, add 0.06g of polyvinylpyrrolidone (referred to as PVP) after ultrasonication for 10min, and then dissolve 0.065g 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 weigh 0.027g of cobalt chloride (CoCl 2 ), added to the above solution, and continued to stir at room temperature for 1 hour until CoCl 2 completely dissolved. Then accurately weigh 0.199gKMnO 4 Dissolve in 50mL of deionized water, and then add to the above reaction solution. Continue to react at room temperature for 1h, and weigh 0.1g of boric acid (abbreviated as H 3 BO 3 ) and 0.1g sodium borohydride (referred to as NaBH 4 ) into the reaction solution, stirred until the boric acid was dissolved, transferred the reaction solution into a polytetrafluoroet...

Embodiment 3

[0033] Accurately weigh 0.1g of the above sample of self-made nitrogen-doped graphene oxide, dissolve it in 50mL of deionized water, add 0.06g of polyvinylpyrrolidone (referred to as PVP) after ultrasonication for 10min, and then dissolve 0.075g 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 weigh 0.031g of cobalt chloride (CoCl 2 ), added to the above solution, and continued to stir at room temperature for 1 hour until CoCl 2 completely dissolved. Then accurately weigh 0.299gKMnO 4 Dissolve in 50mL of deionized water, and then add to the above reaction solution. Continue to react at room temperature for 1h, and weigh 0.1g of boric acid (abbreviated as H 3 BO 3 ) and 0.1g sodium borohydride (referred to as NaBH 4 ) into the reaction solution, stirred until the boric acid was dissolved, transferred the reaction solution into a polytetrafluoroet...

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Abstract

The invention discloses a nitrogen-boron co-doped graphene composite denitration sulfur-resistant catalyst and a preparation method thereof, and particularly relates to a preparation method for preparing a nitrogen-boron co-doped graphene catalyst composite material by in-situ growth of an efficient denitration sulfur-resistant ternary catalyst on self-made nitrogen-doped graphene oxide and reduction of graphene oxide while boron doping. Due to the in-situ growth method, the ternary catalyst is uniformly and firmly loaded on the surface of the nitrogen-boron co-doped graphene. The overall synthesis is carried out in a low-temperature environment, the reaction synthesis method and operation are very simple, the reaction is rapid, no specific requirements are required for a reaction container, the synthesized substance does not pollute the environment, and the synthesized catalyst and the nitrogen-boron co-doped graphene are firmly combined, long in service life and high in denitration rate.

Description

technical field [0001] The invention belongs to the technical field of functional doped graphene composite catalysts, in particular to a nitrogen-boron co-doped graphene composite denitrification and anti-sulfur catalyst and a preparation method thereof. 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 gases will affect the environment. Cause haze, acid rain, photochemical smog and greenhou...

Claims

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Application Information

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IPC IPC(8): B01J27/24B01J35/10B01D53/86B01D53/56B01D53/50
CPCB01J27/24B01D53/8637B01J35/394B01J35/61
Inventor 郑玉婴郑伟杰
Owner FUZHOU UNIVERSITY
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