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Amination polymer of intrinsic micro-porosity adsorbent and application thereof

A microporous polymer and adsorbent technology, applied in the direction of adsorption of water/sewage treatment, water pollutants, and other chemical processes, can solve the problems of pathogenicity and biological carcinogenicity, achieve large adsorption capacity, improve adsorption capacity, good stability effect

Inactive Publication Date: 2017-12-29
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although azo dyes make our life colorful, it has been proved that the water pollution caused by these dyes has the potential to cause cancer and disease to organisms.
However, there is no report on the amination of self-porous polymers for the adsorption of anionic dyes.

Method used

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  • Amination polymer of intrinsic micro-porosity adsorbent and application thereof
  • Amination polymer of intrinsic micro-porosity adsorbent and application thereof
  • Amination polymer of intrinsic micro-porosity adsorbent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 Preparation of Aminated Self-Having Microporous Polymer Adsorbent

[0017] (1) Synthesis of self-porous polymer PIM-1: 5.1062 g (15 mmol) TTSBI and 3.0013 g (15 mmol) TFTPN were dissolved in 100 mL DMF, blown with nitrogen, and magnetically stirred at 65 °C until completely dissolved After that, add 5.1248 g of anhydrous K 2 CO 3 , under the protection of nitrogen, continue to react with magnetic stirring at 65 ℃ for 72 h; after the reaction is completed, cool to room temperature, pour the reaction solution into 150 mL deionized water, and filter with suction to obtain a filter cake; then in a 500 mL beaker, the obtained filter cake Magnetically stirred in 350 mL of deionized water for 15 min, and then suction-filtered, the filter cake was air-dried at 110 °C for 12 h, and then washed with 300 mL of 1,4-dioxane, 100 mL of acetone, and 200 mL of deionized water Wash with 100 mL of acetone, filter with suction, and finally air-dry at 110°C for 12 h, and set as...

Embodiment 2

[0020] Example 2 Effect of pH value on adsorption performance of aminated self-microporous polymer adsorbent

[0021] Adopt embodiment 1 gained NH 2 -PIM-1 and unaminated PIM-1 carried out static adsorption tests on sunset yellow in solutions with different pH values, and measured its absorption rate by ultraviolet spectrophotometry. The results are as follows figure 2 shown. Initial sunset yellow concentration: 100 ppm; adsorbent dosage: 5 mg; shaking time: 2 h; temperature: 25°C; sample volume: 10 mL.

[0022] Depend on figure 2 It can be seen that, compared with PIM-1, NH at different pH values 2 -PIM-1 has good adsorption performance on sunset yellow.

Embodiment 3

[0023] Example 3 Determination of saturated adsorption capacity

[0024] The results of determination of the adsorption effect of aminated self-microporous polymer adsorbent on different concentrations of sunset yellow are shown in image 3 .

[0025] Depend on image 3 It can be seen that when the sunset yellow solution is at a lower concentration, the adsorption capacity of the aminated self-microporous polymer adsorbent to sunset yellow increases with the increase of its concentration, and a plateau appears when the initial concentration reaches 150mg / g, indicating that the adsorbent When the saturation state is reached, the saturation adsorption capacity of the aminated self-microporous polymer adsorbent for sunset yellow is 348.16 mg / g.

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Abstract

The invention discloses an amination polymer of intrinsic micro-porosity adsorbent and an application thereof, and belongs to the field of adsorbing material preparation. According to the adsorbent, a borane-tetrahydrofuran complex serves as a reducing agent, and cyan on a polymer of intrinsic micro-porosity is reduced into amidogen to obtain the adsorbent. According to the adsorbent, a lot of amidogen is introduced into the polymer of intrinsic micro-porosity, the content of active groups of the polymer of intrinsic micro-porosity is increased, and the adsorption performance of the adsorbent is improved, so that the adsorbent can be used for dyes in environmental water samples and particularly is used for adsorbing anionic dyes.

Description

technical field [0001] The invention belongs to the field of adsorption material preparation, and in particular relates to an aminated self-porous polymer adsorbent and its application. Background technique [0002] There are many kinds of azo dyes, including basic, acidic, reactive dyes, etc., which are widely used in textile, cosmetics and other industries. Although azo dyes make our life colorful, it has been proved that the water pollution caused by these dyes can cause cancer and disease to organisms. Therefore, there is an urgent need for an economically feasible method for prevention and treatment. [0003] Nowadays, there are physical, chemical and biological methods to remove dyes from water, among which adsorption is one of the simplest and most efficient methods. Due to the characteristics of large specific surface area and many pores, porous materials have inherent advantages in adsorption applications. According to literature reports, means such as increasing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C08G67/00C02F101/30
CPCB01J20/265C02F1/285C02F2101/308C08G67/00
Inventor 吕海霞凌云霞飞于岩
Owner FUZHOU UNIV
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