Unlock instant, AI-driven research and patent intelligence for your innovation.

Porous carbon-based adsorbent for gas adsorption and preparation method thereof

A gas adsorption, porous carbon technology, applied in separation methods, chemical instruments and methods, reagents, etc., can solve problems such as warming and environmental pollution, and achieve the effects of short synthesis cycle, rich pore structure, and good gas adsorption effect.

Active Publication Date: 2019-08-16
XIANGTAN UNIV
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, economic development has also brought many problems, especially the large amount of greenhouse gases (carbon dioxide) produced during the use of fossil fuels; the greenhouse effect brought by these greenhouse gases leads to global warming, acid rain, extreme weather and other environmental problems. pollution problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Porous carbon-based adsorbent for gas adsorption and preparation method thereof
  • Porous carbon-based adsorbent for gas adsorption and preparation method thereof
  • Porous carbon-based adsorbent for gas adsorption and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0051] According to the second embodiment provided by the present invention, a method for preparing a porous carbon-based adsorbent for gas adsorption is provided.

[0052] A method for preparing a porous carbon-based adsorbent for gas adsorption or a method for preparing the porous carbon-based adsorbent for gas adsorption described in the first embodiment, the method comprising the following steps:

[0053] (1) Preparation of 3,6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine (BMIT): 3,6-bis(3,5-dimethyl Pyrazole)-1,2,4,5-tetrazine (BDMT) and 4-methylimidazole (4-MI) are loaded into the reactor, heated for a period of time, cooled, filtered by suction, and dried to obtain 3, 6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine (BMIT);

[0054] (2) Preparation of zinc-based metal-organic framework (Zn-MOF): 3,6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine was dissolved in an organic solvent, Add metal zinc salt, after dispersion, heat and react for a period of time, after coolin...

Embodiment 1

[0066] A method for preparing a porous carbon-based adsorbent for gas adsorption, the method comprising the following steps:

[0067](1) Preparation of 3,6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine (BMIT): 3,6-bis(3,5-dimethyl Pyrazole)-1,2,4,5-tetrazine (BDMT) and 4-methylimidazole (4-MI) are loaded into the reactor, heated for a period of time, cooled, filtered by suction, and dried to obtain 3, 6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine (BMIT);

[0068] (2) Preparation of zinc-based metal-organic framework (Zn-MOF): 3,6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine was dissolved in an organic solvent, Add metal zinc salt, after dispersing, heat and react for a period of time, after cooling, filter with suction, wash, and dry to obtain a brown solid, which is zinc-based metal organic framework polymer (Zn-MOF);

[0069] (3) Preparation of porous carbon-based adsorbent for gas adsorption: the zinc-based metal-organic framework (Zn-MOF) obtained in step (2) was heat...

Embodiment 2

[0071] Preparation of 3,6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine (BMIT):

[0072] 4.05g 3,6-bis(3,5-dimethylpyrazole)-1,2,4,5-tetrazine (BDMT) was added into a three-necked flask equipped with a reflux device filled with 60ml of acetonitrile. After stirring evenly at room temperature, add 10 ml of acetonitrile solution in which 2.73 g of 4-methylimidazole (4-MI) is dissolved, and then slowly feed N 2 Protected, heated to 80°C for reflux reaction for 3 hours, cooled in an ice bath, filtered, washed with acetonitrile and dichloromethane, dried in vacuo to constant weight to obtain the target product.

[0073] figure 1 A synthetic route for the preparation of 3,6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine (BMIT).

[0074] figure 2 It is the 1H NMR chart of the ligand 3,6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine (BMIT).

[0075] image 3 It is the mass spectrum of the ligand 3,6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine (BMIT).

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention provides a porous carbon-based adsorbent for gas adsorption. The preparation method comprises the following steps: carrying out nucleophilic substitution reaction on 3,6-bis(3,5-dimethylpyrazole)-1,2,4,5-tetrazine (BDMT) and 4-methylimidazole (4-MI) to synthesize 3,6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine (BMIT) with high nitrogen content; carrying out a coordination reactionto the 3,6-bis(4-methyl-1H-imidazolyl)-1,2,4,5-tetrazine and zinc ions to form a zinc-based metal organic framework (Zn-MOF); and finally, carrying out heat treatment on the zinc-based metal organic framework polymer to prepare the porous carbon-based adsorbent for gas adsorption. The adsorbent is simple in preparation process, low in cost and beneficial to practical application of the carbon dioxide gas adsorption material.

Description

technical field [0001] The invention relates to an adsorbent, in particular to a porous carbon-based adsorbent for gas adsorption and a preparation method thereof, belonging to the field of gas adsorption materials. Background technique [0002] With the economic development of society and the improvement of human's living standard, people's demand for traditional fossil fuels (oil, natural gas, coal) is gradually increasing. However, economic development has also brought many problems, especially the large amount of greenhouse gases (carbon dioxide) produced during the use of fossil fuels; the greenhouse effect brought by these greenhouse gases leads to global warming, acid rain, extreme weather and other environmental problems. pollution problem. According to data surveys, benefiting from energy-efficient technologies and low-carbon promotion, global carbon emissions remained stable from 2014 to 2016, but rebounded from 2017 to 2018. Since the development of low-carbon te...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30B01D53/02C08G83/00
CPCB01D53/02B01D2253/102B01J20/0259B01J20/20B01J2220/4806B01J2220/4812C08G83/008Y02P20/151Y02C20/40
Inventor 黎华明白亚峰杨端光陈红飙
Owner XIANGTAN UNIV