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Preparing method for amido-modified nanometer fiber material for carbon dioxide adsorption

A nanofiber, carbon dioxide technology, applied in chemical instruments and methods, plant fibers, fiber types, etc., can solve the problem of easy pulverization of granular porous materials, and achieve rich pore structure, good continuity, and avoid secondary pollution. Effect

Inactive Publication Date: 2017-01-04
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of amine-modified nanofibrous materials for carbon dioxide adsorption, so as to solve the problem that the above-mentioned granular porous materials are generally easy to powder during use

Method used

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  • Preparing method for amido-modified nanometer fiber material for carbon dioxide adsorption

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Embodiment 1

[0022] A method for preparing an amino-modified nanofiber material for carbon dioxide adsorption, the specific steps are:

[0023] At room temperature of 25°C, 0.5g of polyethersulfone was dissolved in 9.5g of dimethyl sulfoxide in a stirred tank with a rotation speed of 100rpm to obtain a polyethersulfone solution with a mass fraction of 5% for electrospinning. Spinning raw materials were added to the electrospinning device, and electrospinning was carried out under the conditions of static voltage of 10kV, syringe pump flow rate of 0.3mL / h, and a distance of 6cm between the spinneret and the receiving screen to obtain polyethersulfone nanofiber template materials.

[0024] Dissolve polyethyleneimine in methanol to make a methanol solution of polyethyleneimine with a concentration of 1mg / mL, and immerse the prepared polyethersulfone nanofiber template material into the prepared polyethyleneimine with a concentration of 1mg / mL. In the methanol solution of amine, stir for 30 mi...

Embodiment 2

[0026] A method for preparing an amino-modified nanofiber material for carbon dioxide adsorption, the specific steps are:

[0027] At room temperature of 25°C, 1 g of cellulose acetate was dissolved in 9 g of acetone in a stirred tank at a speed of 300 rpm to obtain a 10% electrospinning raw material cellulose acetate solution, and the obtained electrospinning raw material was added to the electrospinning In the silk device, under the conditions of static voltage of 10kV, syringe pump flow rate of 0.5mL / h, and distance between spinneret and receiving screen of 10cm, electrospinning was carried out to obtain polyethersulfone nanofiber template material.

[0028] Dissolve polyacrylamide in ethanol, prepare a polyacrylamide ethanol solution with a concentration of 2 mg / mL, immerse the prepared cellulose acetate nanofiber template material in a polyacrylamide ethanol solution with a concentration of 2 mg / mL, and rotate In the evaporator, stir for 40 minutes at a temperature of 32°...

Embodiment 3

[0030] A method for preparing an amino-modified nanofiber material for carbon dioxide adsorption, the specific steps are:

[0031] At room temperature of 25°C, 0.5g of polystyrene was dissolved in 9.5g of dimethyl sulfoxide in a stirred tank with a rotation speed of 200rpm to obtain a 5% electrospinning raw material polystyrene solution. Spinning raw materials were added to the electrospinning device, and electrospinning was carried out under the conditions of static voltage of 15kV, injection pump flow rate of 1mL / h, and a distance of 10cm between the spinneret and the receiving screen to obtain polystyrene nanofiber template materials.

[0032] Dissolve diethanolamine in methanol, prepare a methanol solution of diethanolamine with a concentration of 10 mg / mL, immerse the prepared polystyrene nanofiber template material in a methanol solution with a concentration of 10 mg / mL of diethanolamine, and place in a rotary evaporator , stirred for 45 minutes at a temperature of 33°C ...

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Abstract

The invention provides a preparing method for amido-modified nanometer fiber material for carbon dioxide adsorption. The preparing method is characterized by including the special steps that 1, at the room temperature, a non-water-soluble high-molecular polymer for spinning is stirred and dissolved into a solvent in a stirring kettle, and electrospining raw materials with a mass percentage of 5-30% are obtained; 2, the electrospining raw materials obtained in the step 1 are added into an electrostatic spinning device, electrostatic spinning is carried out, and a nanometer fiber template material is obtained; 3, the nanometer fiber template material obtained in the step 2 is immersed into a prepared organic amine solution with a concentration of 1 mg / mL-1 g / mL, the mixture is stirred in a rotating evaporimeter, the nanometer fiber template material and the organic amine are mixed accordingly, and then stirring is carried out for 5 h to 10 h to remove methyl alcohol or ethyl alcohol, and the amido-modified nanometer fiber material with the carbon dioxide adsorption function is prepared. The amido-modified nanometer fiber material has the high carbon dioxide adsorption capacity and powdering resistance, the preparing method is simple, and the preparing method has the enormous application potentiality in the field of carbon capture.

Description

technical field [0001] The invention relates to a preparation method of an amine-based modified nanofiber material for carbon dioxide adsorption, and belongs to the technical field of carbon dioxide adsorption. Background technique [0002] With the perennial use of fossil fuels, CO 2 Excessive emissions have become the cause of major disasters such as global warming, sea level rise, intensified hurricanes, and frequent occurrence of El Niño. Therefore, CO 2 Emission reduction has become an urgent environmental issue for the international community. CO 2 Capture and storage is one of the important technologies for controlling greenhouse gas emissions. Developed countries and regions such as the United States, the European Union, and Canada have formulated relevant technology development directions and routes. my country's energy structure is dominated by coal, CO 2 Emissions will rise or remain high for a long time, and the development of CO 2 Capture technology will be...

Claims

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Application Information

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IPC IPC(8): D06M15/61D06M15/285D06M13/368D06M13/332D06M13/364D06M15/03D06M13/432D06M15/267B01J20/26B01J20/24B01J20/30B01D53/02D01D5/00D06M101/30D06M101/08D06M101/20D06M101/06D06M101/32D06M101/34D06M101/28D06M101/26D06M101/38
CPCB01D53/02B01D2257/504B01J20/24B01J20/265D01D5/003D06M13/332D06M13/364D06M13/368D06M13/432D06M15/03D06M15/267D06M15/285D06M15/61D06M2101/06D06M2101/08D06M2101/20D06M2101/26D06M2101/28D06M2101/30D06M2101/32D06M2101/34D06M2101/38Y02C20/40Y02P70/62
Inventor 王先锋丁彬窦绿叶俞建勇
Owner DONGHUA UNIV
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