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Synthesis method and application of tetrazolium-functionalized uio-67

A UIO-67, synthesis method technology, applied in chemical instruments and methods, separation methods, organic chemistry and other directions, can solve the problem of low adsorption selectivity, achieve strong adsorption selectivity, increase interaction force, and prolong service life Effect

Active Publication Date: 2020-09-29
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2) to CO 2 / N 2 The adsorption selectivity is low

Method used

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  • Synthesis method and application of tetrazolium-functionalized uio-67
  • Synthesis method and application of tetrazolium-functionalized uio-67
  • Synthesis method and application of tetrazolium-functionalized uio-67

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A synthetic method of tetrazolium-functionalized UIO-67, comprising the steps of:

[0049] The synthetic route of the ligand used in the tetrazolium-functionalized UIO-67 is:

[0050]

[0051] The synthetic method of the tetrazolium functionalized UIO-67 comprises the following steps:

[0052] (1) Synthesis of Ligand Tetrazole Functionalized Biphenyldicarboxylic Acid

[0053] (a), synthesis of methyl terephthalate (A1): Weigh 20mmol of methyl terephthalic acid and add it to a reaction vessel containing 150mL of methanol, slowly add 1.5mL of concentrated sulfuric acid dropwise, and Afterwards, heat to 80°C for reflux reaction for 12h, cool to room temperature, and spin evaporate until a large amount of solids precipitate out, filter, wash with frozen methanol, and dry to obtain a white solid that is methyl terephthalate (A1). 95%.

[0054] (b), the synthesis of methyl dibromomethyl biphenyl dicarboxylate (A2): the methyl terephthalate (A1) that takes 15mmol is diss...

Embodiment 2

[0063] Example 2 is the same as the synthesis route of the ligand used in the tetrazolium-functionalized UIO-67 described in Example 1, and the synthetic route of the complex tetrazolium-functionalized UIO-67 is the same, the difference is:

[0064]The synthetic method of the tetrazolium functionalized UIO-67 comprises the following steps:

[0065] (1) Synthesis of Ligand Tetrazole Functionalized Biphenyldicarboxylic Acid

[0066] (a), synthesis of methyl terephthalate (A1): Weigh 15mmol of methyl terephthalic acid and add it to a reaction vessel containing 150mL of methanol, slowly add 1.05mL of concentrated sulfuric acid dropwise, and dropwise Afterwards, heat to 75°C for reflux reaction for 11h, cool to room temperature, and spin evaporate until a large amount of solids precipitate out, filter, wash with refrigerated methanol, and dry to obtain a white solid that is methyl terephthalate (A1). 90%.

[0067] (b), the synthesis of methyl dibromomethyl biphenyl dicarboxylate ...

Embodiment 3

[0074] Example 3 is the same as the synthesis route of the ligand used in the tetrazolium-functionalized UIO-67 described in Example 1, and the synthetic route of the complex tetrazolium-functionalized UIO-67 is the same, the difference is:

[0075] The synthetic method of the tetrazolium functionalized UIO-67 comprises the following steps:

[0076] (1) Synthesis of Ligand Tetrazole Functionalized Biphenyldicarboxylic Acid

[0077] (a), synthesis of methyl terephthalate (A1): Weigh 30mmol of methyl terephthalic acid and add it to a reaction vessel containing 150mL of methanol, slowly add 2.4mL of concentrated sulfuric acid dropwise, and Afterwards, heat to 85°C for reflux reaction for 13h, cool to room temperature, spin evaporate until a large amount of solid precipitates, filter, wash with refrigerated methanol, and dry to obtain a white solid that is methyl terephthalate (A1). 92%.

[0078] (b), the synthesis of methyl dibromomethyl biphenyl dicarboxylate (A2): take 24mmol...

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Abstract

The invention provides a synthesis method of tetrazolium functionalized UIO-67 as well as application thereof. The synthesis method comprises the following steps: synthesizing an aminomethyl tetrazolium functionalized UIO-67 material by introducing aminomethyl tetrazolium on a ligand, introducing an aldehyde group in a p-phthalic acid ligand, performing reaction by using the aminomethyl tetrazolium and further performing reduction to synthesize a novel tetrazolium functionalized biphenyldicarboxylic acid ligand, and further reacting with Zr<4+> to prepare a tetrazolium functionalized UIO-67 porous adsorption material. The synthesis method is simple, low in cost and easy to popularize and apply; the tetrazolium functionalized UIO-67 has high crystallinity, high heat stability and high chemical stability; the tetrazolium functionalized UIO-67 can be applied to selective capture and storage of CO2 in mixed gas; and the problems that the UIO-67 material has low adsorption selectivity on CO2 / N2 and has low CO2 adsorption quantity near a low-pressure area are solved.

Description

technical field [0001] The invention relates to the technical field of porous adsorption materials, in particular to a synthesis method and application of tetrazolium-functionalized UIO-67. Background technique [0002] CO 2 As greenhouse gases are one of the main causes of global warming, one of the major challenges that humanity must face is the effort to develop more efficient carbon dioxide capture processes. CO from fossil fuels 2 Emissions account for the world's CO 2 80% of the emissions, with the development of industry, its emissions may be further increased. Therefore, controlling and mitigating CO emissions to the atmosphere from fossil fuel use 2 is CO 2 The focus of emission reduction. The flue gas emissions from the factory contain about 15% CO 2 In addition, it also contains about 75% N 2 , capable of selectively adsorbing CO in mixed gases 2 for CO 2 The capture is crucial. Wet Scrubbing Captures CO 2 That is, the chemical absorption of CO2 throug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D257/04B01J20/22B01J20/30B01D53/02
CPCB01D53/02B01D2253/204B01D2257/504B01J20/223B01J2220/4812C07D257/04Y02C20/40Y02P20/151
Inventor 王俊豪张莹
Owner SHANXI UNIV