Imide covalent organic framework material and preparing method and application thereof

A covalent organic framework and imide technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, carbon monoxide, etc., to achieve high chemical stability

Active Publication Date: 2019-05-21
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a new type of porous material, COFs materials are often used in the research of heterogeneous catalysis because of their high specific surface area, stab

Method used

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  • Imide covalent organic framework material and preparing method and application thereof
  • Imide covalent organic framework material and preparing method and application thereof
  • Imide covalent organic framework material and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Put pyromellitic dianhydride (0.15 mmol) and 2,4,6-tris(4-aminophenyl)-1,3,5-triazine (0.10 mmol) in a Pyrex tube, add N-methyl Pyrrolidone / mesitylene / isoquinoline (volume ratio 1:1:0.1, total volume 1.05 mL), sonicate for 10 minutes. The Pyrex tubes were then snap frozen in a liquid nitrogen bath, evacuated to an internal pressure of 0 mbar and flame sealed. After warming to room temperature, the Pyrex tube was placed in an oven at 200 °C for 5 days. Soak in anhydrous THF for 8 h to activate, and then collect the precipitate by suction filtration with THF. The obtained powder was vacuum-dried at 80 ºC overnight to obtain PI-COF-TT.

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PUM

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Abstract

The invention provides an imide covalent organic framework material and a preparing method and application thereof. According to the preparing method of the imide covalent organic framework material,pyromellitic dianhydride and 2,4,6-tris(4-aminophenyl)-1,3,5-triazine are added into a solvent system of mesitylene/N-methyl pyrrolidone/isoquinoline, reheating is conducted for a reaction, and the imide covalent organic framework material PI-COF-TT is obtained. The imide covalent organic framework is large in specific area and high in stability, pores are rich in hetero atoms, and coordination with metal ions is facilitated. The covalent organic framework material with a semiconductor property and metal ions are adopted for high-selectivity reduction of carbon dioxide under the irradiation ofvisible light to prepare carbon monoxide, and the imide covalent organic framework material has potential application value in the aspect of environment-friendly materials.

Description

technical field [0001] The invention belongs to the technical field of new energy, and specifically relates to an imide covalent organic framework material and its preparation method and application. Background technique [0002] At present, the world's energy consumption mainly comes from fossil fuels, and excessive carbon emissions have caused a great burden on the environment. Therefore, we need to develop some green energy to control the impact of the greenhouse effect. According to research, we can use CO 2 Photocatalytic conversion into CO, HCHO, HCOOH, CH 3 OH and CH 4 and other hydrocarbons to reduce atmospheric CO 2 content, and effectively alleviate the current energy crisis. But CO 2 It is relatively inert and requires the use of a suitable photocatalyst for conversion. [0003] With the development of research, more and more new materials have been developed and applied in the field of photocatalysis, especially porous materials. As a new type of porous ma...

Claims

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Application Information

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IPC IPC(8): C08G83/00B01J31/22C01B32/40
Inventor 李留义陈鑫于岩
Owner FUZHOU UNIV
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