Poly-pyrrole-2,5-di(polyol methane) adsorbent and preparation method thereof

A technology of adsorbent and alcohol methane, which is applied in the field of poly-pyrrole-2,5-diadsorbent and its preparation, can solve the problems of difficult treatment and complex components of industrial wastewater, and achieve low usage, excellent adsorption capacity, and large molecular weight Effect

Active Publication Date: 2019-09-06
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies, to provide a poly-pyrrole-2,5-bis(polyol methane) adsorbent and its preparation method, which can provide a simple and effective way for solving the complex and difficult-to-handle problems of industrial wastewater components

Method used

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  • Poly-pyrrole-2,5-di(polyol methane) adsorbent and preparation method thereof
  • Poly-pyrrole-2,5-di(polyol methane) adsorbent and preparation method thereof
  • Poly-pyrrole-2,5-di(polyol methane) adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] preparation:

[0029] Add 100 mL of newly prepared deionized water into a three-neck flask with a specification of 500 mL, perform mechanical stirring at room temperature, and slowly inject 1 mL of pyrrole from the mouth of the bottle. After 1 h, 2 g of aliphatic aldehyde (taking glucose as an example) was dissolved in 15 mL of ionized water and slowly added to a three-necked flask with continuous stirring. After 1 h, 2 mL of concentrated hydrochloric acid was slowly injected into the reaction system, and stirring was continued at room temperature for 10 h. After the reaction, the resulting suspension is filtered and dried to obtain a black powder product, which is the polypyrromethane adsorption material.

[0030] application:

[0031] The prepared adsorbent was used to remove the cationic dye methylene blue in solution. Add 40mL of methylene blue solution with an initial concentration of 200mg / L to the dark brown bottle, add 0.08g of pre-alkali-treated adsorbent, a...

Embodiment 2

[0033] preparation:

[0034] Add 150 mL of newly prepared deionized water into a three-neck flask with a specification of 500 mL, perform mechanical stirring at room temperature, and slowly inject 2 mL of pyrrole from the bottle mouth. After 1.5 h, 4 g of glucose was completely dissolved in 15 mL of deionized water and slowly added into a three-neck flask that was continuously stirred. After 1.5 h, 4 mL of concentrated sulfuric acid was slowly injected into the reaction system, stirred at room temperature for 4 h, then heated to 60° C. and continued to stir for 6 h. After the reaction, the resulting suspension is filtered and dried to obtain a black powder product, which is the polypyrromethane adsorption material.

[0035] application:

[0036] The prepared adsorbent is used to remove the anthraquinone dye Alizarin Red s (anion) in the solution. Add 40mL of alizarin red s solution with an initial concentration of 200mg / L to the dark brown bottle, add 0.1g of the pre-acid-t...

Embodiment 3

[0038] preparation:

[0039] Add 200 mL of newly prepared deionized water into a three-neck flask with a specification of 500 mL, perform mechanical stirring at room temperature, and slowly inject 4 mL of pyrrole from the mouth of the bottle. After 2 hours, 8 g of glucose was completely dissolved in 15 mL of deionized water and slowly added into a three-necked flask with constant stirring. After 2h, 16mL of concentrated hydrochloric acid was slowly injected into the reaction system, stirring was continued at room temperature for 6h, and then heated to 80°C for 12h. After the reaction, the resulting suspension is filtered and dried to obtain a black powder product, which is the polypyrromethane adsorption material.

[0040] application:

[0041] The prepared adsorbent was used to remove the indigo dye indigo in the solution. Add 30mL of indigo solution with an initial concentration of 200mg / L to the darkened brown bottle, add 0.06g of adsorbent, and stir magnetically for 30m...

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Abstract

The invention discloses a poly-pyrrole-2,5-di(polyol methane) adsorbent and a preparation method thereof. A pyrrole monomer and polyhydroxy fatty aldehyde are taken as raw materials, water is taken asa solvent, under the catalytic action of an acid, a dehydration polycondensation principle of pyrrole alpha carbon and an aldehyde group is utilized to generate a poly-pyrrole-methane high polymer material with a certain chain length, no other oxides or reactants need to be added in the whole reaction process, and after the reaction, the solution is an acidic solution containing a non-toxic polymer, has small harm to the environment, and is very easily treated. Therefore, the whole preparation process is an environmentally friendly chemical synthesis process. The polyhydroxy fatty aldehyde replaces a common aromatic aldehyde to be subjected to the polycondensation reaction with the pyrrole monomer under the catalytic action of the acid, thereby avoiding the introduction of aromatic substances in the reaction system.

Description

technical field [0001] The invention belongs to the field of chemistry and water treatment, and in particular relates to a poly-pyrrole-2,5-bis(polyol methane) adsorbent and a preparation method. Background technique [0002] With the improvement of modern industrial level and frequent human activities, a large amount of wastewater from various fields is discharged into the water body every year, which will not only cause the decline of the aesthetics of the water body, but also bring various chemical toxic substances, causing serious water pollution. pollute. [0003] With the generation of a large amount of wastewater with complex components, the traditional biological treatment process can no longer meet the requirements of continuous and stable compliance of various types of wastewater. Adsorption technology is one of the physical and chemical technologies that have been widely studied in the field of water treatment and have engineering application foundation. It has t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26C08G61/12C02F1/28C02F101/30C02F101/38
CPCB01J20/262B01J2220/4806B01J2220/4812C02F1/285C02F2101/308C02F2101/38C08G61/124C08G2261/11C08G2261/3221
Inventor 冯江涛张文龙延卫刘云鹏姬亚军
Owner XI AN JIAOTONG UNIV
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