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

Zirconium-doped mesoporous molecular sieve fiber preparation method based on electrostatic spinning technology

An electrospinning technology and mesoporous molecular sieve technology, applied in the field of zirconium-doped mesoporous molecular sieve fiber preparation, can solve the problems of restricting large-scale application, high cost of membrane separation, and bulky equipment, and achieve rich redox points, high The effect of local carrier concentration and simple preparation process

Pending Publication Date: 2022-05-17
南通惠尔船舶科技有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, CO2 capture mainly includes low-temperature distillation, alkali absorption method, membrane separation, and adsorption method. Although low-temperature distillation and alkali absorption method have low cost and good treatment efficiency, they are bulky, volatile, and cause secondary pollution. Disadvantages limit its large-scale application. Membrane separation costs are high and the operation is complicated, and it is generally seldom used. The adsorption and treatment of CO2 through solid adsorption materials has the advantages of high adsorption capacity, no corrosion, low cost, and good equipment stability. , has a good application prospect in capturing CO2

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
  • Zirconium-doped mesoporous molecular sieve fiber preparation method based on electrostatic spinning technology
  • Zirconium-doped mesoporous molecular sieve fiber preparation method based on electrostatic spinning technology
  • Zirconium-doped mesoporous molecular sieve fiber preparation method based on electrostatic spinning technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for preparing zirconium-doped mesoporous molecular sieve fibers based on electrospinning technology. The materials for preparing zirconium-doped mesoporous molecular sieves include mesoporous molecular sieve SBA-15, metal zirconium (Zr) salt, ammonium salt, crosslinking agent and solvent , the preparation method is as follows:

[0041]Weigh 0.5g of zirconium oxychloride and 0.5g of hexadecyltrimethylammonium bromide and dissolve them in 50mL of absolute ethanol, heat and stir at 50°C for 20min, then add 1.0g of SBA-15 mesoporous silicon Molecular sieves, ultrasonic dispersion, quickly transferred to a high-temperature and high-pressure reactor, ammonia water to adjust the pH to 10.0, to obtain a precursor solution, using a hydrothermal method (150°C, 6h) to prepare a Zr-SBA-15 material, vacuum-dried at 80°C, and set aside ;

[0042] Proportion the nano-polyacrylonitrile powder (PAN, molecular weight 120,000) and the spinning organic solvent at a mass percentag...

Embodiment 2

[0045] A method for preparing zirconium-doped mesoporous molecular sieve fiber based on electrospinning technology. The materials for preparing zirconium-doped mesoporous molecular sieve include SBA-15, metal zirconium salt, ammonium salt, crosslinking agent and solvent. The preparation method is as follows:

[0046] Weigh 0.5g of zirconium oxychloride and 0.5g of hexadecyltrimethylammonium bromide and dissolve them in 50mL of absolute ethanol, heat and stir at 50°C for 20min, then add 1.0g of SBA-15 mesoporous silicon Molecular sieves, ultrasonic dispersion, quickly transferred to a high-temperature and high-pressure reactor, ammonia water to adjust the pH to 10.0, to obtain a precursor solution, using a hydrothermal method (150°C, 6h) to prepare a Zr-SBA-15 material, vacuum-dried at 80°C, and set aside ;

[0047] Proportion the nano-polyacrylonitrile powder (PAN, molecular weight 120,000) and the spinning organic solvent at a mass percentage of 10%, and magnetically stir for...

Embodiment 3

[0049] A method for preparing zirconium-doped mesoporous molecular sieve fiber based on electrospinning technology. The materials for preparing zirconium-doped mesoporous molecular sieve include SBA-15, metal zirconium salt, ammonium salt, crosslinking agent and solvent. The preparation method is as follows:

[0050] Weigh 0.5g of zirconium oxychloride and 0.5g of hexadecyltrimethylammonium bromide and dissolve them in 50mL of absolute ethanol, heat and stir at 50°C for 20min, then add 1.0g of SBA-15 mesoporous silicon Molecular sieves, ultrasonic dispersion, quickly transferred to a high-temperature and high-pressure reactor, ammonia water to adjust the pH to 10.0, to obtain a precursor solution, using a hydrothermal method (150°C, 6h) to prepare a Zr-SBA-15 material, vacuum-dried at 80°C, and set aside ;

[0051] Mix nano-polyacrylonitrile powder (PAN, molecular weight 120,000) and spinning organic solvent at a mass percentage of 7%, and magnetically stir for 3 hours at 50°C...

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
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a zirconium-doped mesoporous molecular sieve fiber preparation method based on an electrostatic spinning technology, materials for preparing a zirconium-doped mesoporous molecular sieve comprise a mesoporous molecular sieve SBA-15, a metal zirconium salt, an ammonium salt and a solvent absolute ethyl alcohol, and the SBA-15, the metal zirconium salt, the ammonium salt and the solvent absolute ethyl alcohol are prepared according to a one-step hydrothermal method. And finally obtaining the zirconium-doped mesoporous molecular sieve fiber. According to the preparation method of the zirconium-doped mesoporous molecular sieve fiber based on the electrostatic spinning technology, the zirconium-doped mesoporous molecular sieve fiber has good adsorption-desorption performance, the material is prepared based on the electrostatic spinning technology, metal ions are introduced into a mesoporous molecular sieve SBA-15, the CO2 adsorption capacity of the zirconium-doped mesoporous molecular sieve fiber material is improved, the zirconium-doped mesoporous molecular sieve fiber material can be repeatedly used, the preparation process is simple, the yield is high, and the method is suitable for industrial production. The product is long in validity period and can be well applied to ship waste gas CO2 adsorption treatment.

Description

technical field [0001] The invention belongs to the technical field of nanofiber preparation methods and can be applied to CO2 absorption treatment of ship exhaust gas, in particular to a method for preparing zirconium-doped mesoporous molecular sieve fibers based on electrospinning technology. Background technique [0002] With the integration of the global economy and the rapid development of shipping transportation, the pollution of the current environment by the exhaust emissions of marine diesel engines is becoming more and more serious. The exhaust gas emitted by ships is mainly CO2, NOX, SOX and some particles, among which NOX, SOX and particles are controlled to a certain extent through exhaust gas recirculation and catalytic reduction. [0003] The increase of CO2 content in the atmosphere will lead to a serious greenhouse effect, which will bring a series of environmental problems. Most of the ships are powered by fossil raw materials, which will generate a large ...

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): B01J20/18B01D53/02D01F6/54D01F1/10C01B37/00
CPCB01J20/186B01D53/02D01F6/54D01F1/10C01B37/00B01D2253/25B01D2257/504B01D2258/012C01P2006/12C01P2006/16Y02P20/151
Inventor 郭贵锋喻金江曹七季小三
Owner 南通惠尔船舶科技有限公司