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A kind of preparation method and application of Schiff base cyclic compound applied to iodine adsorption

A technology for cyclic compounds and Schiff bases is applied in the field of preparation of Schiff base cyclic compounds to achieve the effects of excellent adsorption cycle performance, simple and efficient method, and excellent iodine adsorption and storage performance.

Active Publication Date: 2020-05-22
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many polymers such as zeolites, activated carbons, molecular sieves, metal-organic frameworks (MOFs), covalent organic frameworks (COFs) and other porous materials have been developed for the capture and storage of iodine, while Schiff base cyclic compounds are used for Rarely reported cases of iodine adsorption

Method used

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  • A kind of preparation method and application of Schiff base cyclic compound applied to iodine adsorption
  • A kind of preparation method and application of Schiff base cyclic compound applied to iodine adsorption
  • A kind of preparation method and application of Schiff base cyclic compound applied to iodine adsorption

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Add 1,8-diaminoanthracene (41.6mg, 0.2mmol), terephthalaldehyde (26.8mg, 0.2mmol), mesitylene (19mL), dioxane (1mL) and 6M aqueous acetic acid into a reaction tube (2 mL). The above-mentioned reaction tube was subjected to three freezing-vacuumizing-thawing-nitrogen gas removal operations to remove oxygen. After the reaction tube was sealed, the reaction tube was allowed to stand at 120°C for 3 days. After the reaction, it was cooled to room temperature, and the product was vacuum filtered and washed thoroughly with acetone and tetrahydrofuran. The fully washed product was vacuum-dried at 120°C for 10 hours to obtain a brick-red solid powder (53 mg, yield 86%), which was named Compound 1.

Embodiment 2

[0042] Add 1,8-diaminoanthracene (62.4mg, 0.3mmol), isophthalaldehyde (40.2mg, 0.3mmol), mesitylene (19mL), dioxane (1mL) and 6M aqueous acetic acid into a reaction tube (2 mL). The above-mentioned reaction tube was subjected to three freezing-vacuumizing-thawing-nitrogen gas removal operations to remove oxygen. After the reaction tube was sealed, the reaction tube was allowed to stand at 120°C for 3 days. After the reaction, it was cooled to room temperature, and the product was vacuum filtered and washed thoroughly with acetone and tetrahydrofuran. The fully washed product was vacuum-dried at 120°C for 10 hours to obtain a yellow solid powder (92 mg, yield 83%), which was named Compound 2.

Embodiment 3

[0044] Add 1,8-diaminoanthracene (41.6mg, 0.2mmol), 4,4'-biphenyldicarbaldehyde (42mg, 0.2mmol), mesitylene (19mL), dioxane (1mL) into the reaction tube and 6M aqueous acetic acid (2 mL). The above-mentioned reaction tube was subjected to three freezing-vacuumizing-thawing-nitrogen gas removal operations to remove oxygen. After the reaction tube was sealed, the reaction tube was allowed to stand at 120°C for 3 days. After the reaction, it was cooled to room temperature, and the product was vacuum filtered and washed thoroughly with acetone and tetrahydrofuran. The fully washed product was vacuum-dried at 120° C. for 10 hours to obtain a brick-red solid powder (58 mg, yield 75%), named compound 3.

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Abstract

The invention discloses a preparation method and application of a schiff base cyclic compound applied to efficient iodine adsorption. The invention aims to provide the preparation method of the schiffbase cyclic compound applied to efficient iodine adsorption, the preparation method does not need template induction, the schiff base cyclic compound can be synthesized in one step, and the preparation method is simple to operate. The schiff base cyclic compound prepared by the method disclosed by the invention has excellent iodine adsorption and storage performance, and is good in adsorption cycle performance, simple in operation, pollution-free, low in energy consumption, and high in efficiency, provides a novel material for iodine adsorption, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the field of functional materials, and in particular relates to a preparation method and application of a Schiff base cyclic compound applied to iodine adsorption. Background technique [0002] The discovery of macrocyclic compounds can be traced back to C J Pedersen's first report on polyether ring synthesis and its coordination in 1967. Macrocyclic compounds mainly include crown ethers, cyclodextrins, calixarenes, pillararenes, and cyclic Schiff bases. There are unbonded lone pairs of electrons on the heteroatoms of macrocyclic compounds that can form coordination bonds. The size of the ring cavity is controllable and modifiable, and it can selectively complex organic and inorganic small molecules and metal ions. Therefore, macrocyclic chemistry It has broad application prospects in the fields of catalysis, artificial anion receptors, and biological simulation. [0003] Schiff base cyclic compounds are an important class of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D257/10B01J20/22B01J20/30B01D15/08
Inventor 郭宗侠孙潘莉李志波赵娜孙阿彬
Owner QINGDAO UNIV OF SCI & TECH