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Nitrogen-containing ordered mesopore carbon and its synthesis method

A synthesis method and technology of mesoporous carbon, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of cumbersome preparation process and long cycle, and achieve the effects of broad application prospects, low cost, and simple and easy preparation methods.

Inactive Publication Date: 2007-07-18
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation process of this kind of method is loaded down with trivial details, and the period is long

Method used

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  • Nitrogen-containing ordered mesopore carbon and its synthesis method
  • Nitrogen-containing ordered mesopore carbon and its synthesis method
  • Nitrogen-containing ordered mesopore carbon and its synthesis method

Examples

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example 1

[0045] The preparation of soluble resin precursor solution, 8.00g phenol is put in three-necked flask, 42 ​​℃ of water-bath heatings, make phenol be transparent liquid, prepare 20% sodium hydroxide solution (take by weighing 0.34gNaOH, add 1.36g distilled water), Slowly drop into the phenol liquid. After 10 minutes, 14.16 g of formaldehyde solution with a mass percentage of 37% was added, refluxed at 70° C. for 1 hour, cooled to room temperature, and adjusted to neutral pH with 2 mol / L hydrochloric acid. Distill under reduced pressure at 45°C to 50°C, cool to room temperature, and prepare 20% ethanol or ether solution.

example 2

[0047] 0.02 g of m-aminophenol was dissolved in 5.00 g of the soluble resin precursor obtained in Example 1, and the solution A was obtained after stirring for 2 hours. Dissolve 0.61g of F127 in 8.00g of absolute ethanol and stir for 10 minutes to obtain solution B. Mix solutions A and B and stir for 30 minutes. Then spread the mixed solution evenly in a petri dish, leave it at room temperature for 7 hours, and finally transfer it to an oven at 100°C. After 24 hours, the product was baked at 350°C for 5 hours under a nitrogen atmosphere to obtain a nitrogen-containing mesoporous polymer, and then 900 ℃ roasting for 5 hours to obtain nitrogen-containing mesoporous carbon material, as shown in Figure 1, the XRD spectrum proves that the material has a two-dimensional hexagonal structure (space group p6mm), the pore diameter is 4.3nm, and the pore volume is 0.63cm 3 / g, the specific surface area is 1177m 2 / g, its N 2 The adsorption-desorption isotherms belong to type IV (as sh...

example 3

[0049] 0.05g m-aminophenol was dissolved in the ether solution of the soluble resin obtained in 5.00g Example 1, and after stirring for 2 hours, A solution was obtained. Dissolve 0.61g of F127 in 8.00g of ether and stir for 10 minutes to obtain solution B. Mix solutions A and B and stir for 60 minutes. Then spread the mixture evenly in a petri dish, leave it at room temperature for 7 hours, and finally transfer it to an oven at 120°C. After 24 hours, the product is baked at 600°C and 900°C under the protection of nitrogen for 6 hours respectively to obtain nitrogen-containing mesoporous cells. Carbon materials, all have a two-dimensional hexagonal structure (space group p6mm), the pore diameters are 5.2nm and 4.0nm, and the pore volumes are 0.42cm 3 / g and 0.43cm 3 / g, the specific surface area is 705m 2 / g and 890m 2 / g.

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Abstract

This invention discloses a new order mesoporous carbon that contains nitrogen and its composition method and initial application in adsorbing domain. Composition method: make solubilis resin and organic predecessor containing nitrogen for reaction in organic solvent, utilize predecessor and nonionic wetting agent to carry out self assembly, get resin-nonionic wetting agent composite containing nitrogen, remove surface acting agent by calcinating in inert atmosphere, carbonize, get order mesoporous carbon containing nitrogen; or carbonize at high temperature resin-nonionic wetting agent composite containing nitrogen, get order mesoporous carbon containing nitrogen. Pore diameter of prepared mesoporous carbon is 2.0-6.0nm, bore is 0.10-1.00 cu cm / g. Specific surface area is 500-1200sq m / g. C / N molar ratio is 100:0.20-100:10.00. It can be used as adsorbing substance of phenolic compounds in waste liquids. It has extensive application prospect in catalytic action, heavy metal ion, and colorant molecular adsorption and electrode materials.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and specifically relates to a novel nitrogen-containing ordered mesoporous carbon material, a preparation method and an application in the field of adsorption. Background technique [0002] Mesoporous carbon materials have attracted widespread attention because on the one hand, these materials have mesoscopically ordered structures, uniform mesoporous channels, high specific surface area and large pore volume, and on the other hand, they have the characteristics of carbon materials themselves. Therefore, it has broad applications in the fields of adsorption, catalysis, separation, electrochemical electrodes, photoelectric devices, protein adsorption and separation, etc. The functionalized mesoporous carbon materials obtained by further functionalization will surely show more excellent performance and expand the field of practical application. However, compared with traditional mesop...

Claims

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Application Information

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IPC IPC(8): C01B31/02C01B31/08B01J20/20
Inventor 万颖冯翠苗张蝶青钱旭芳李和兴
Owner SHANGHAI NORMAL UNIVERSITY
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