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

A nitrogen-containing porous aromatic framework material and its preparation method and application

A porous aromatic skeleton, aromatic hydrocarbon technology, applied in chemical instruments and methods, other chemical processes, alkali metal compounds, etc., can solve problems such as poor adsorption effect, and achieve the effect of mild reaction conditions and wide applicability

Active Publication Date: 2020-08-25
LIAONING UNIVERSITY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solid adsorption method is a simple and effective method for enriching radioactive iodine. However, traditional activated carbon and ion exchange resins have poor adsorption effects on radioactive iodine due to their limited specific surface area.

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
  • A nitrogen-containing porous aromatic framework material and its preparation method and application
  • A nitrogen-containing porous aromatic framework material and its preparation method and application
  • A nitrogen-containing porous aromatic framework material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Nitrogen-containing porous aromatic framework material LNU-1

[0027]

[0028] Preparation method: In a 100mL round-bottomed flask, add 323mg (0.96mmol) of 9,10-dibromoanthracene and 399mg (0.64mmol) of BBA into 60mL of tetrahydrofuran, place the round-bottomed flask in liquid nitrogen, After freezing, vacuumize with a vacuum pump, pass nitrogen, and circulate three times, then quickly add 5 mL of 2 mol / L potassium carbonate aqueous solution and 40 mg tetrakis(triphenylphosphine) palladium into the reaction system. Evacuate again, fill with nitrogen, and cycle three times. After thawing, the reaction system was heated to 80°C and reacted for 72 hours.

[0029] After the reaction is over, filter the reactant with suction to leave solid insoluble matter, wash with 60mL 20-90°C tetrahydrofuran for 3-5 times, and filter; wash with 60mL of 20-100°C water for 3-5 times, and filter; Wash with acetone at 20-50°C for 3-5 times and filter. Used to remove possible unreac...

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

No PUM Login to View More

Abstract

The invention discloses a nitrogen-containing porous aromatic skeleton material as well as a preparation method and application thereof. The nitrogen-containing porous aromatic skeleton material is prepared by taking dibromo substituted aromatic hydrocarbon compound and tri(4-boric acid diphenyl alcohol ester phenyl)amine as reaction monomers, tetra(triphenyl phosphine)palladium as catalyst and tetrahydrofuran as a solvent through Suzuki coupling reaction. The nitrogen-containing porous aromatic skeleton can be used for capturing and storing radioactive iodine, can be recycled and has a good economic benefit.

Description

technical field [0001] The invention belongs to the technical field of new chemical materials, and in particular relates to a novel nitrogen-containing porous aromatic framework material and a universal preparation method. Background technique [0002] With the development and needs of human society, porous materials are widely used in gas storage, ion exchange, separation and catalysis due to their large specific surface area, adjustable pore size and modifiable active centers and many other advantages. field. In recent years, porous organic polymers (POPs), as a new class of materials, have attracted extensive attention of scientists. POPs materials are a kind of organic framework with low framework density, continuous porosity and high thermochemical stability formed by the interconnection of light elements (C, H, B, O, N) through covalent bonds. Due to the diversity of synthetic methods, the structures and properties of such POPs materials, such as intrinsically microp...

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 Patents(China)
IPC IPC(8): C08G61/12B01J20/26B01J20/28
CPCB01J20/262B01J20/28054C08G61/121C08G2261/314C08G2261/3162C08G2261/411
Inventor 闫卓君杨东奇夏立新布乃顺张谦张红翠杨骁
Owner LIAONING UNIVERSITY