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A kind of aminated self-porous polymer adsorbent and its application

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: 2019-04-05
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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  • A kind of aminated self-porous polymer adsorbent and its application
  • A kind of aminated self-porous polymer adsorbent and its application
  • A kind of aminated self-porous polymer adsorbent and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 Preparation of aminated self-microporous polymer adsorbent

[0017] (1) Synthesis of self-owned microporous polymer PIM-1: Dissolve 5.1062 g (15 mmol) TTSBI and 3.0013 g (15 mmol) TFTPN in 100 mL DMF, bubbling in nitrogen, and magnetically stirring at 65 ℃ until completely dissolved After adding 5.1248 g anhydrous K 2 CO 3 Under the protection of nitrogen, the reaction was continued with magnetic stirring at 65 ℃ for 72 h; after the reaction was completed, cooled to room temperature, the reaction solution was poured into 150 mL of deionized water, and filtered to obtain a filter cake; then in a 500 mL beaker, the resulting filter cake Stir magnetically in 350 mL of deionized water for 15 min, and then filter with suction. The filter cake was dried at 110 ℃ for 12 h with air blowing, followed by 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 blast dry at 110°C for 12 h, for lat...

Embodiment 2

[0020] Example 2 The influence of pH value on the adsorption performance of aminated microporous polymer adsorbent

[0021] Using the NH obtained in Example 1 2 -PIM-1 and non-aminated PIM-1 were subjected to static adsorption tests on sunset yellow in solutions of different pH values, and the absorption rate was measured by ultraviolet spectrophotometry, the results are as follows figure 2 Shown. Concentration of initial sunset yellow: 100 ppm; amount of adsorbent: 5 mg; shaking time: 2 h; temperature: 25°C; sample volume: 10 mL.

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

Embodiment 3

[0023] Example 3 Measurement of saturated adsorption capacity

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

[0025] by 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 for sunset yellow increases with the increase of its concentration. When the initial concentration reaches 150mg / g, a plateau appears, indicating that the adsorbent When the saturated state is reached, the saturated 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 specifically relates to an aminated self-microporous polymer adsorbent and its application. Background technique [0002] There are many types of azo dyes, including alkaline, acidic, reactive dyes, etc., and are widely used in textile, cosmetics and other industries. Although azo dyes make our lives colorful and colorful, the facts prove that water pollution caused by these dyes can cause cancer and disease to organisms. Therefore, an economically feasible method is urgently needed for prevention and treatment. [0003] Nowadays, there are physical, chemical and biological methods to remove dyes from water bodies, and adsorption is one of the simplest and most efficient methods. Porous materials have inherent advantages in adsorption applications due to their large specific surface area and many pores. According to reports in the literature, methods such as increasing the specific ...

Claims

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Application Information

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Patent Type & Authority Patents(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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