Preparation method of magnetized porous composite material adsorbent

A porous composite material and adsorbent technology, applied in chemical instruments and methods, alkali metal compounds, other chemical processes, etc., can solve the problems of complete separation and recovery of nanomaterials, and achieve good reusability, high adsorption capacity, low cost effect

Active Publication Date: 2020-07-28
GUODIAN SCI & TECH RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Difficulty in the complete separation and recovery of nanomaterials

Method used

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  • Preparation method of magnetized porous composite material adsorbent
  • Preparation method of magnetized porous composite material adsorbent
  • Preparation method of magnetized porous composite material adsorbent

Examples

Experimental program
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Effect test

Embodiment 1

[0037] 1. Fe 3 o 4 Synthesized by hydrothermal method: weigh 5.7 g of sodium acetate and dissolve it in 50 mL of ethylene glycol solution, heat it to fully dissolve, and dissolve 2.7 g of FeCl 3 ·6H 2 O was dissolved in the above solution and stirred at 50 °C for 1 h. Then the mixed solution was transferred to a 100 mL polytetrafluoroethylene autoclave and heated to 180 °C for 8 hours. Naturally cooled to room temperature, the black magnetic microspheres were collected magnetically, and washed three times with ethanol and deionized water respectively. Dry in a vacuum oven at 60°C for 3 hours. get the required Fe 3 o 4 granular products.

[0038] 2. Thioglycolic acid modification of Fe 3 o 4 : 1 g of the above-prepared Fe 3 o 4 Ultrasonic dispersion in 80 mL of thioglycolic acid (thioglycolic acid) (1.74 mmol / L) ethanol solution, the temperature was controlled at 30 °C, and the power was 10 W / cm 2 , ultrasonic treatment with a frequency of 30 kHz for 3 minutes; then...

Embodiment 2

[0045] 1. Weigh 5.7 g of sodium acetate and dissolve it in 50 mL of ethylene glycol solution and heat it to fully dissolve, and 2.7 g of FeCl 3 ·6H 2 O was dissolved in the above solution and stirred at 50 °C for 1 h. Then the mixed solution was transferred to a 100 mL polytetrafluoroethylene autoclave and heated to 180 °C for 8 hours. Naturally cooled to room temperature, the black magnetic microspheres were collected magnetically, and washed three times with ethanol and deionized water respectively. Dry in a vacuum oven at 60°C for 3 hours. get the required Fe 3 o 4 granular products.

[0046] 2. Take 1 g of Fe prepared above 3 o 4 Ultrasonic dispersion in 80 mL of thioglycolic acid (thioglycolic acid) (1.74 mmol / L) ethanol solution, the temperature was controlled at 30 °C, and the power was 5 W / cm 2 , ultrasonic treatment at a frequency of 15 kHz for 5 minutes; then modified for 5 minutes under the condition of a rotating permanent magnet with a residual magnetic st...

Embodiment 3

[0053] 1. Weigh 5.7 g of sodium acetate and dissolve it in 50 mL of ethylene glycol solution and heat it to fully dissolve, and 2.7 g of FeCl 3 ·6H 2 O was dissolved in the above solution and stirred at 50 °C for 1 h. Then the mixed solution was transferred to a 100 mL polytetrafluoroethylene autoclave and heated to 200 °C for 8 hours. Naturally cooled to room temperature, the black magnetic microspheres were collected magnetically, and washed three times with ethanol and deionized water respectively. Dry in a vacuum oven at 60°C for 3 hours. get the required Fe 3 o 4 granular products.

[0054] 2. Add 1 g of the thus prepared Fe 3 o 4 Ultrasonic dispersion was carried out in 80 mL of thioglycolic acid (1.74 mmol / L) ethanol solution, the temperature was controlled at 30°C, and the power was firstly used at 10 W / cm 2 , ultrasonic treatment with a frequency of 30 kHz for 3 minutes; then modified for 7 minutes under the condition of a rotating permanent magnet with a resi...

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Abstract

The invention provides a preparation method of a magnetized porous composite material adsorbent. The method comprises the following steps: 1) synthesizing and preparing Fe3O4 nanoparticles by adoptinga hydrothermal method; 2) modifying the Fe3O4 nanoparticles by adopting mercaptoacetic acid; and 3) dispersing the Fe3O4 nanoparticles modified by the mercaptoacetic acid into a DMF solution of ZrCl4, and the like, and finally drying a deposited solid to obtain the magnetized porous polymeric material. The magnetized composite material adsorbent prepared in the invention has good stability to air, water and heat, is non-corrosive and presents strong magnetic responsiveness.

Description

technical field [0001] The invention relates to the field of adsorption and separation applications, in particular to a method for preparing a magnetized composite porous material adsorbent. Background technique [0002] The use of porous nanomaterials to adsorb and enrich metal elements produced by coal combustion, such as mercury, lead, arsenic, and selenium, is an important method in the environmental field. At present, activated carbon adsorption is mostly used. However, considering that such materials cannot be recycled and cause secondary pollution after use, it is important to select the use of low-toxicity porous polymers for the adsorption, enrichment and separation of harmful metal elements in flue gas. significance. [0003] Power plant flue gas has a high temperature and is corrosive to a certain extent under certain humidity conditions. Zirconium-based porous polymer materials with acid and alkali resistance and high pollutant adsorption capacity can well solve...

Claims

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Application Information

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IPC IPC(8): B01J20/02B01J20/28B01J20/30
CPCB01J20/0211B01J20/28009B01J20/28016B01J20/28066
Inventor 许月阳曾勇平仲兆平薛建明管一明王宏亮柏源徐振
Owner GUODIAN SCI & TECH RES INST
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