Supercharge Your Innovation With Domain-Expert AI Agents!

A method for preparing covalent organic framework materials by mechanical ball milling

A technology of covalent organic framework and ball milling, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve the problems of large amount of organic solvent usage, long synthesis time, etc., and achieve short reaction time , low cost of reaction conditions, good removal effect

Active Publication Date: 2021-10-15
HOHAI UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a method for preparing covalent organic framework materials by mechanical ball milling, so as to solve the problems of long synthesis time and large amount of organic solvent used in the prior art

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 method for preparing covalent organic framework materials by mechanical ball milling
  • A method for preparing covalent organic framework materials by mechanical ball milling
  • A method for preparing covalent organic framework materials by mechanical ball milling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] S1. Under the protection of nitrogen gas, evenly mix 2,3,5,6-tetramethyl-p-phenylenediamine and trimesin triformaldehyde in a molar ratio of 1:1 and put them into a stainless steel ball mill tank, then add p-toluenesulfonic acid ball mill Liquid 1mL;

[0026] S2. Put the ball mill jar into a planetary ball mill at a room temperature of 0°C. After adding stainless steel medium balls into the ball mill according to the ball-to-material ratio of 10:1, the ball milled at a speed of 100r / min for 100min;

[0027] S3. After the reaction is over, the product is removed under a nitrogen atmosphere, the product is washed with trimethylbenzene, ultrapure water and acetone in sequence, dried at 90°C for 12h, and then heated to 120°C for 3h to obtain a total Valence organic framework materials COF-m. The specific synthesis steps are shown in 1.

[0028] Application of covalent organic framework material COF-m in the adsorption of pollutants in water: In a 250mL Erlenmeyer flask, ...

Embodiment 2

[0034] S1. Under the protection of nitrogen atmosphere, uniformly mix 2,3,5,6-tetramethyl-p-phenylenediamine and trimesaldehyde in a molar ratio of 1:1 and put them into a stainless steel ball mill tank, then add p-toluenesulfonic acid ball mill Liquid 1mL;

[0035] S2. Put the ball mill jar into the planetary ball mill at a room temperature of 20°C. After adding stainless steel medium balls into the ball mill according to the ball-to-material ratio of 10:1, the ball mill reacted at a speed of 100r / min for 200min;

[0036] S3. After the reaction is over, the product is removed under a nitrogen atmosphere, the product is washed with trimethylbenzene, ultrapure water and acetone in sequence, dried at 90°C for 12h, and then heated to 120°C for 3h to obtain a total Valence organic framework materials COF-m.

[0037] Application of covalent organic framework material COF-m in the adsorption of pollutants in water: In a 250mL Erlenmeyer flask, add 100mg of COF-m material to 100mL ...

Embodiment 3

[0041] S1. Under the protection of nitrogen atmosphere, uniformly mix 2,3,5,6-tetramethyl-p-phenylenediamine and trimesaldehyde raw materials at a molar ratio of 2:3 and add them to a stainless steel ball mill tank, then add p-toluenesulfonic acid ball mill Liquid 3mL;

[0042] S2. Put the ball mill jar into the planetary ball mill at a room temperature of 20°C. After adding stainless steel medium balls into the ball mill according to the ball-to-material ratio of 10:1, the ball mill reacted at a speed of 300r / min for 200min;

[0043] S3. After the reaction is over, the product is removed under a nitrogen atmosphere, the product is washed with trimethylbenzene, ultrapure water and acetone in sequence, dried at 90°C for 12h, and then heated to 120°C for 3h to obtain a total Valence organic framework materials COF-m.

[0044] Application of covalent organic framework material COF-m in the adsorption of pollutants in water: In a 250mL Erlenmeyer flask, add 100mg of COF-m materi...

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 method for preparing a covalent organic framework material by using a mechanical ball milling method. The synthesis method is to put 2,3,5,6-tetramethyl P-phenylenediamine and trimesaldehyde are mixed evenly and then added to the ball milling liquid; at room temperature, after adding stainless steel medium balls with a ball-to-material ratio of 10:1, the ball milling tank is added to the planetary ball mill; after the ball milling reaction, the The product powder was washed with washing liquid, dried at 90° C. for 12 hours, and then heated to 120° C. for 3 hours to obtain a covalent organic framework material. Compared with other preparation methods of covalent organic framework materials, the mechanical ball milling method of the present invention has the advantages of environmental protection and energy saving, short reaction time, simple operation, and low cost of reaction conditions, and the prepared material can remove organic matter and suspended matter in water The effect is obvious.

Description

technical field [0001] The invention belongs to the technical field of macromolecule organic porous materials, and in particular relates to a method for preparing covalent organic framework materials by using a mechanical ball milling method. Background technique [0002] Covalent organic framework materials (Covalent organic framework, COFs) are constructed by connecting light elements C, O, N, B, etc. with covalent bonds, and are ingeniously constructed through strong covalent bonds and organic building units. An organic porous material with an ordered crystal structure and uniform pore size, so it is also called "organic zeolite". Compared with inorganic porous materials, its building blocks are organic small molecules, which have a wide variety of sources and various types, which make the building blocks diverse and facilitate the regulation of the structure and function of the target material through building blocks; they are formed by covalent bonds. The space network...

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): C08G12/08B01J20/26B01J20/30C02F1/28C02F101/30
CPCB01J20/262C02F1/285C02F2101/30C08G12/08
Inventor 莫嘉晨陈晗林涛
Owner HOHAI UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com