Preparation method and application of glycosyl metal porous coordination polymer

A porous coordination and polymer technology, applied in the direction of ion exchange water/sewage treatment, etc., can solve the problems of difficult large-scale preparation, low synthesis cost, and small equipment investment, and achieve a green synthesis method, good stability and safety , easy to enlarge the effect

Inactive Publication Date: 2019-06-07
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has small investment in equipment and low synthesis cost, but it is difficult to prepare in large quantities

Method used

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  • Preparation method and application of glycosyl metal porous coordination polymer
  • Preparation method and application of glycosyl metal porous coordination polymer
  • Preparation method and application of glycosyl metal porous coordination polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Take sucrose (600mg), zinc acetate (Zn(OAC) 2 , 300mg) and potassium carbonate (1200mg) were added in a clean ball mill jar, weighed and added to the ball mill jar, and a coordination reaction occurred in a ball mill on a planetary ball mill for 20min to prepare a porous coordination polymer containing sucrose-Zn. The final porous coordination polymer was rinsed three times with deionized water repeatedly. X-ray diffraction characterization showed that the porous coordination polymers prepared from polysaccharide metals belonged to amorphous materials. Infrared data indicated that the glycosyl ligands and metal ions were successfully coordinated. The gas adsorption test shows that the obtained coordination polymer has a porous structure and a high specific surface area.

Embodiment 2

[0034] (1) Fructose (600mg), zinc acetate (Zn(OAC) 2 , 300mg) and potassium carbonate (1200mg) were added in a clean ball mill jar, weighed and added to the ball mill jar, and a coordination reaction occurred in a ball mill on a planetary ball mill for 20min to prepare a porous coordination polymer containing sucrose-Zn. The final porous coordination polymer was rinsed three times with deionized water repeatedly.

[0035] (2) Add the polymer prepared in step (1) to potassium hydroxide (KOH) according to different mass ratios (1:0, 1:1, 1:2, etc.) Carry out carbonization in an inert gas, heat up from room temperature to 400-800 °C at 2-5 °C / min, keep warm for 2 hours, and cool to room temperature to obtain a black solid. The resulting black solid was acid-washed (1M HCl), washed overnight, and then washed twice with pure water to remove potassium salts. Then vacuum-dry at 80° C. overnight to obtain the porous carbon material based on the porous coordination polymer of the pre...

Embodiment 3

[0037](1) Add maltose (600mg), nickel acetate (Ni(OAC)2, 300mg) and potassium carbonate (1200mg) into a clean ball mill jar, weigh them into the ball mill jar, and ball mill on a planetary ball mill for 20 minutes to form a compound The maltose-Ni porous coordination polymer was prepared through a site reaction, and the reacted porous coordination polymer was washed with deionized water for 3 times.

[0038] (2) Add the polymer prepared in step (1) to potassium hydroxide (KOH) according to different mass ratios (1:0, 1:1, 1:2, etc.) Carry out carbonization in an inert gas, heat up from room temperature to 400-800 °C at 2-5 °C / min, keep warm for 2 hours, and cool to room temperature to obtain a black solid. The resulting black solid was acid-washed (1M HCl), washed overnight, and then washed twice with pure water to remove potassium salts. Then vacuum-dry at 80° C. overnight to obtain the porous carbon material based on the porous coordination polymer of the present invention....

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Abstract

The invention discloses a preparation method and application of a glycosyl porous coordination coordination polymer. The preparation method comprises the following steps: performing ball milling on anorganic compound with chiral carbon atoms such as monosaccharide, disaccharide or polysaccharide having a skeleton containing or partially containing a hydroxyl group, an aldehyde group or a ketone group and salts containing various metal ions for a polymerization reaction to form the porous coordination polymer, performing heating to 400-1200 DEG C, and performing carbonization to obtain a porous carbon material based on the porous coordination polymer. The porous carbon material based on the chiral porous coordination polymer provided by the invention has the advantages of a multi-stage pore structure, an adjustable pore size, low costs, a simple preparation process, good stability and good safety, is easy to use, and can be recycled and be used in the fields of gas adsorption, chiral separation, catalysis and gas storage.

Description

technical field [0001] The invention relates to a synthesis method of a chiral porous metal coordination polymer with sugar as an organic ligand, in particular to a ligand that is a monosaccharide, disaccharide or polysaccharide containing a hydroxyl group, an aldehyde group or a ketone group, etc. Organic compounds with neutral carbon atoms and salts containing various metal ions are polymerized to form porous coordination polymers. Background technique [0002] Porous coordination polymer (PCP) or metal-organic framework (MOF) is a kind of organic-inorganic hybrid porous material, which has the advantages of good structure design, high specific surface area, and rich performance. It has attracted much attention in recent years and has been It has been widely used in many fields such as gas adsorption and separation, energy storage devices, catalysis, and drug sustained release. Usually porous coordination polymers are composed of organic ligands and metal ions or metal cl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C02F1/42
Inventor 王丹丹赵云峰李鹏丽丁轶
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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