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Preparation of hyperbranched polyetheramine-grafted GO adsorbent used for heavy metal and dye adsorption as well as application thereof

A technology of hyperbranched polyetheramine and adsorbent, which is applied in the field of water treatment to achieve high-efficiency removal, excellent adsorption effect, and simple preparation process

Active Publication Date: 2015-06-17
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method of the hyperbranched polyetheramine grafted graphene oxide adsorbent in the present invention is simple, has high adsorption capacity, can be reused, is environmentally friendly, and has no published patents and literature reports

Method used

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Examples

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Effect test

Embodiment 1

[0030] Example 1 Preparation method of hyperbranched polyetheramine grafted GO adsorbent

[0031] (1) Weigh 10 g of polyethylene glycol bisglycidyl ether monomer (n=9), add it into 50 mL of ethanol, and obtain solution A after completely dissolving, and dissolve 1.7 g of N-ethylethylenediamine monomer Prepare solution B in 10 mL of ethanol, add solution B dropwise to solution A at 20 °C with stirring, after the dropwise addition, react for 24 h, raise the temperature to 90 °C, and react for 12 h. A mixed solution is obtained; the obtained mixed solution is concentrated by evaporation, washed with n-hexane for several times of sedimentation, the supernatant is discarded, and the obtained product is vacuum-dried to obtain a hyperbranched polyetheramine HPEA.

[0032] (2) Weigh 0.05 g of graphene oxide GO and ultrasonically disperse in 100 mL of water for 2 h, add 1 g of hyperbranched polyetheramine HPEA and 1 g of potassium hydroxide to the resulting dispersion, and stir for...

Embodiment 2

[0033] Example 2 Preparation method of hyperbranched polyetheramine grafted GO adsorbent

[0034] (1) Weigh 2.18 g of polypropylene glycol bisglycidyl ether monomer (n=2), add it into 20 mL of dimethyl sulfoxide, and obtain solution A after completely dissolving, and add 2.1 g of N-aminoethylpiperazine mono The solution was dissolved in 30mL dimethyl sulfoxide to form solution B, and solution B was added dropwise to solution A at 45 °C under stirring. After the addition was completed, the reaction was continued for 48 h, and the temperature was raised to 60 °C to continue the reaction. 24 h. The obtained mixed solution was concentrated by evaporation, washed with diethyl ether for several times, and the supernatant was discarded, and the obtained product was vacuum-dried to obtain hyperbranched polyetheramine HPEA.

[0035](2) Weigh 0.03 g of graphene oxide GO and ultrasonically disperse in 50 mL of water for 2 h, add 0.6 g of hyperbranched polyetheramine HPEA and 0.6 g of...

Embodiment 3

[0036] Example 3 Preparation method of hyperbranched polyetheramine grafted GO adsorbent

[0037] (1) Weigh 15 g of polyethylene glycol bisglycidyl ether monomer (n=15), add it into 80 mL of N,N-dimethylformamide, and dissolve it completely to obtain solution A. Add 0.5 g of mercapto Ethylamine and 0.6 g of N-ethylethylenediamine monomer were dissolved in 20 mL of N,N-dimethylformyl to form solution B, and solution B was added dropwise to the solution at 35 °C while stirring In A, after the dropwise addition, the reaction was continued for 32 h, the temperature was raised to 80 °C, and the reaction was continued for 18 h. The obtained mixed solution was concentrated by evaporation, washed with petroleum ether for several times, and the supernatant was discarded, and the obtained product was vacuum-dried to obtain hyperbranched polyetheramine HPEA.

[0038] (2) Weigh 0.07 g of graphene oxide GO and ultrasonically disperse in 200 mL of water for 2 h, add 1.4 g of hyperbranch...

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Abstract

The invention relates to a preparation method of a hyperbranched polyetheramine-grafted GO adsorbent used for heavy metal and dye adsorption as well as an application thereof. The hyperbranched polyetheramine-grafted GO adsorbent is characterized in that polyether diglycidyl ether and a polyamine monomer are employed to prepare the hyperbranched polyetheramine HPEA, an alkalescence catalyst grafting oxidation graphene GO is used, so that the hyperbranched polyetheramine-grafted oxidized graphene GO-HPEA. The adsorbent preparation method is simple and easy, the adsorption quantity for the heavy metal ion or cation dye can be more than 500mg / g, and the hyperbranched polyetheramine-grafted GO adsorbent has the advantages of easy solid-liquid separation and repeatable utilization, and can be used for high efficiency treatment of heavy metal and dye in waste water.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a preparation method of a hyperbranched polyetheramine grafted GO adsorbent used for heavy metal and dye adsorption and an application technology for heavy metal ion and dye adsorption in water treatment. Background technique [0002] Although the rapid development of emerging industries has brought great convenience to people's lives, industrial wastewater, especially wastewater containing a large amount of heavy metal ions or dyes, flows into rivers and lakes, causing serious pollution to water resources and threatening the economy. sustainable development and the healthy existence of human beings. Therefore, how to efficiently treat wastewater containing a large amount of heavy metal ions or dyes has attracted more and more attention, and this has become the focus and difficulty of wastewater treatment today. Currently known methods for treating wastewater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F1/58C02F1/62
Inventor 胡丽华魏琴王晓东闫涛杜斌闫良国
Owner UNIV OF JINAN
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