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A kind of sulfonated conjugated microporous polymer and its preparation method and application

A technology of conjugated micropores and polymers, applied in chemical instruments and methods, water pollutants, and other chemical processes, can solve the problems of low adsorption capacity of adsorbents, difficult post-processing, large amount of sludge, etc., and achieve regeneration Good performance, good solvent resistance, high efficiency adsorption and recovery effect

Active Publication Date: 2021-11-12
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These traditional adsorbents are often used in a large amount to remove high-color printing and dyeing wastewater, that is, the adsorption capacity of the adsorbent is relatively low, which may cause a large amount of sludge, difficult post-treatment, and secondary pollution.

Method used

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  • A kind of sulfonated conjugated microporous polymer and its preparation method and application
  • A kind of sulfonated conjugated microporous polymer and its preparation method and application
  • A kind of sulfonated conjugated microporous polymer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: a kind of sulfonated conjugated microporous polymer and preparation method thereof, such as figure 1 shown.

[0044] Product 1:

[0045] 1) Using tris(4-boronic acid pinacol ester phenyl)amine and 4,4-dibromobiphenyl under the catalysis of zero-valent tetrakistriphenylphosphorous palladium in N,N-dimethylformamide and 2M carbonic acid Suzuki polymerization reaction is carried out in a moderate temperature mixed solvent of potassium aqueous solution to obtain nano-scale conjugated microporous polymer;

[0046] Mix 100mg of tris(4-boronic acid pinacol ester phenyl)amine and 100mg of 4,4-dibromobiphenyl with equal functional group ratio in 10mL of dimethylformamide and 2M potassium carbonate aqueous solution under the catalysis of 5mg of zero-valent metal palladium In 3mL mixed solvent, react at 90°C for 24 hours to form nanoscale conjugated microporous polymer.

[0047] 2) performing a sulfonation reaction on the conjugated microporous polymer in step 1) ...

Embodiment 2

[0060] 1. Experimental materials

[0061] The sulfonated conjugated microporous polymer and methylene blue solution prepared under the conditions of product 3 in Example 1.

[0062] 2. Experimental method

[0063] 2.1 Weigh 5 mg of sulfonated conjugated microporous polymer and put it into a methylene blue solution with a concentration of 50 mg / L, place it at a temperature of 25°C, adjust the pH value to 7, stir well, and wait for the adsorption to complete.

[0064] 2.2 Weigh 1 g of sulfonated conjugated microporous polymer and put it into a methylene blue solution with a concentration of 400 mg / L, place it at 25°C, adjust the pH value to 7, stir well, and wait for the adsorption to complete.

[0065] 2.3 Weigh 1 g of sulfonated conjugated microporous polymer and put it into a methylene blue solution with a concentration of 200 mg / L, place it at a temperature of 25°C, adjust the pH value to 7, stir well, and wait for the adsorption to complete.

[0066] 3. Experimental resul...

Embodiment 3

[0069] 1. Experimental materials

[0070] The conditions of product 3 in Example 1 prepared sulfonated conjugated microporous polymer, potassium bromide, methylene blue solution, and hydrochloric acid solution.

[0071] 2. Experimental method

[0072] Infrared Spectrogram: Nexus-560 (Nicolet) infrared spectrometer was used for characterization, specifically: Weigh 5 mg of sulfonated conjugated microporous polymer, grind it fully with 100 mg of potassium bromide powder, and test it after tableting. The test wave number is 4000~400cm -1 .

[0073] Transmission electron microscope: G20 JEM-2100F transmission electron microscope is used for testing, specifically: 2 mg of sulfonated conjugated microporous polymer is weighed, dispersed on a copper grid, and then characterized.

[0074] Adsorption effect: Weigh 5mg of sulfonated conjugated microporous polymer each time, then disperse in 20mL of 200mg / L different dye solutions, stir at 25°C until the adsorption is saturated, and th...

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Abstract

The invention discloses a sulfonated conjugated microporous polymer and its preparation method and application. By adopting tris(4-boric acid pinacol ester phenyl)amine and 4,4-dibromobiphenyl Under the catalysis of phenylphosphopalladium, Suzuki polymerization is carried out gently in the mixed solvent of N,N-dimethylformamide and 2M potassium carbonate aqueous solution to obtain nano-scale conjugated microporous polymers; the conjugated microporous polymers are combined with Concentrated sulfuric acid is used for sulfonation reaction to obtain sulfonated conjugated microporous polymers, and the application in efficient recovery of cationic dyes has excellent results.

Description

technical field [0001] The invention relates to the field of adsorption materials, in particular to a sulfonated conjugated microporous polymer and its preparation method and application. Background technique [0002] As my country continues to develop into a textile powerhouse, the pollution of printing and dyeing wastewater brought by the dyeing and finishing industry has always been the focus of attention of workers in this field. Especially in recent years, the concept of "green mountains and green waters are golden mountains and silver mountains" has been further proposed, which highlights the importance of environmental protection. Printing and dyeing wastewater accounts for a high proportion of pollution in the entire textile industry chain. Printing and dyeing wastewater contains a large amount of colored dyes, inorganic salts, auxiliaries and fabric waste generated during the printing and dyeing process. Therefore, the amount of printing and dyeing wastewater is no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12B01J20/26C02F1/28C02F101/30
CPCB01J20/265B01J2220/4812C02F1/285C02F2101/308C08G61/12C08G2261/124C08G2261/312C08G2261/3162C08G2261/411C08G2261/722
Inventor 杨潇易世雄段炼肖波
Owner SOUTHWEST UNIV
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