Fluorine-containing porous carbon material as well as preparation method and application thereof

A porous carbon material and carbon dioxide technology, applied in separation methods, chemical instruments and methods, and other chemical processes, can solve problems such as limited applications, and achieve the effects of low skeleton density, narrow pore size distribution, and excellent adsorption performance

Inactive Publication Date: 2017-10-27
JILIN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, their limited adsorption capacity leads to low iodine adsorption,

Method used

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  • Fluorine-containing porous carbon material as well as preparation method and application thereof
  • Fluorine-containing porous carbon material as well as preparation method and application thereof
  • Fluorine-containing porous carbon material as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] In this example, a fluorine-containing porous carbon material, the specific preparation process is: 4,4'-dibromooctafluorobiphenyl (114mg, 0.25mmol) and 1,3-diethynylbenzene monomer (47mg, 0.375mmol) Under the catalysis of tetrakis(triphenylphosphine)palladium(0), DMF and triethylamine were used as the reaction solvent, and the reaction was carried out at 120℃ for 48h under the protection of nitrogen, and the conjugated microporous polymer materials containing fluorine heteroatoms were prepared by Sonogashira coupling reaction (FCMP@1). Then, the material was calcined at 600 °C for 2 h under the protection of nitrogen to obtain a novel porous carbon material (FCMP-600@1) loaded with heteroatom fluorine.

Embodiment 2

[0037]In this example, a fluorine-containing porous carbon material, the specific preparation process is as follows: 4,4'-dibromooctafluorobiphenyl (114mg, 0.25mmol) and 1,3,5-triethynylbenzene monomer (45mg, 0.25 mmol) was catalyzed by tetrakis(triphenylphosphine)palladium(0), DMF and triethylamine were used as reaction solvents, and reacted at 120°C for 48h under nitrogen protection, and prepared conjugated microporous polymers containing fluorine heteroatoms by Sonogashira coupling reaction materials (FCMP@2). Then, the material was calcined at 600 °C for 2 h under the protection of nitrogen to obtain a novel porous carbon material (FCMP-600@2) loaded with heteroatom fluorine.

Embodiment 3

[0039] In this example, a fluorine-containing porous carbon material, the specific preparation process is: 4,4'-dibromooctafluorobiphenyl (114mg, 0.25mmol) and tetraethynylbenzenemethane monomer (78mg, 0.188mmol) in tetra( Under the catalysis of triphenylphosphine) palladium (0), DMF and triethylamine were used as the reaction solvent, and the reaction was carried out at 120 °C for 48 h under the protection of nitrogen, and the conjugated microporous polymer material containing fluorine heteroatoms (FCMP@ 3). Then, the material was calcined at 600 °C for 2 h under the protection of nitrogen to obtain a novel porous carbon material (FCMP-600@3) loaded with heteroatom fluorine.

[0040] It should be noted that the raw material tetraethynylbenzenemethane monomer used in this example is reference S1.Li, P.Z.; Wang, X.J.; Liu, J.; Lim, J.S.; Zou, R.; Zhao, Y.J.Am .Chem.Soc.,2016,138,2142-2145. Self-synthesized in the laboratory.

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Abstract

The invention discloses a fluorine-containing porous carbon material, which belongs to the technical field of adsorption material preparation. Specifically, the fluorine-containing porous carbon material is prepared in a way that 4,4'-dibromooctafluorobiphenyl and alkyne benzene derivatives are taken as a comonomer, under the catalysis of tetrakis(triphenylphosphine)palladium (0), through Sonogashira, coupling is carried out, and high-temperature calcination is carried out at the temperature of 580-620 DEG C under nitrogen protection. The prepared fluorine-containing porous carbon material has the characteristics of large specific surface area, narrow porous distribution, high physical chemistry stability, low skeleton density and the like, and shows outstanding adsorption capacity for carbon dioxide and iodine.

Description

technical field [0001] The invention belongs to the technical field of adsorption material preparation, and in particular relates to a fluorine-containing porous carbon material and its preparation method and application. Background technique [0002] Global carbon emissions are rising dramatically. Atmospheric "greenhouse effect" and global warming will be the biggest environmental problems faced by all mankind in the 21st century. At present, human beings produce a large amount of carbon dioxide in the energy system and emit it directly, which is the main reason for this phenomenon. Compared with other environmental problems, carbon dioxide emissions have a large impact space and long-term effects, so it is very difficult to solve them. Atmospheric carbon dioxide levels have changed from pre-industrial levels to 2180×10 -4 (volume fraction, the same below) up to the current 3156×10 -4 , whose data comes from the literature. If no measures are taken to control carbon d...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30B01D53/02G21F9/00
CPCB01D53/02B01D2257/504B01J20/027B01J20/205B01J20/28064B01J20/2808G21F9/00Y02C20/40
Inventor 许彦红姚婵刘洺含
Owner JILIN NORMAL UNIV
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