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Magnetic Fe3O4@PS-TMT nanoparticle with adsorption function and preparation method thereof

A nanoparticle and magnetic technology, which is applied in the field of adsorption functional magnetic Fe3O4@PS-TMT nanoparticles and its preparation, can solve the problems of restricting the application of adsorption method, small adsorption capacity, slow adsorption rate, etc., and achieves reduced time and good uniformity. , the effect of promoting the uniformity of dispersion

Active Publication Date: 2019-05-21
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the problems of small adsorption capacity, slow adsorption rate and poor selectivity of magnetic polymer adsorption materials seriously restrict the application of adsorption method in the field of heavy metal treatment.

Method used

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  • Magnetic Fe3O4@PS-TMT nanoparticle with adsorption function and preparation method thereof
  • Magnetic Fe3O4@PS-TMT nanoparticle with adsorption function and preparation method thereof
  • Magnetic Fe3O4@PS-TMT nanoparticle with adsorption function and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of adsorption function magnetic Fe 3 o 4 The preparation method of @PS-TMT nanoparticles comprises the following steps:

[0042] S1. Weigh 2119.2 mg of iron acetylacetonate and add it to 20 mL of diphenyl ether, then add 1 mL of oleylamine, 1 mL of ethylene glycol, and 1 mL of oleic acid, stir evenly, and react for 0.5 h at 200°C in a nitrogen atmosphere. After refluxing at 250°C for 1 hour, stop heating, cool to room temperature, magnetically separate the black product, and wash once with acetone to obtain ferric oxide nanoparticles coated with oleic acid-oleylamine;

[0043] S2. Disperse the iron ferric oxide nanoparticles wrapped with oleic acid-oleylamine obtained in step S1 into 2mL of dichloromethane, and add 600mg of cetyltrimethylammonium bromide, 0.5ml of n-butanol and 36mL of distilled water, stirred and mixed evenly, ultrasonicated for 10min to form a fine emulsion, and then heated at 60°C for 10min to remove dichloromethane to prepare a magnetic fer...

Embodiment 2

[0050] A kind of adsorption function magnetic Fe 3 o 4 The preparation method of @PS-TMT nanoparticles comprises the following steps:

[0051] S1. Weigh 2119.2 mg of iron acetylacetonate and add it to 20 mL of diphenyl ether, then add 1 mL of oleylamine, 1 mL of ethylene glycol, and 1 mL of oleic acid, stir evenly, and react for 0.5 h at 200°C in a nitrogen atmosphere. After refluxing at 250°C for 1 hour, stop heating, cool to room temperature, magnetically separate the black product, and wash once with acetone to obtain ferric oxide nanoparticles coated with oleic acid-oleylamine;

[0052] S2. Disperse the iron ferric oxide nanoparticles wrapped with oleic acid-oleylamine obtained in step S1 into 2mL of dichloromethane, and add 400mg of cetyltrimethylammonium bromide, 0.3ml of n-butanol and 30mL of distilled water, stirred and mixed evenly, ultrasonicated for 10min to form a fine emulsion, and then heated at 60°C for 10min to remove dichloromethane and prepare a magnetic fe...

Embodiment 3

[0057] A kind of adsorption function magnetic Fe 3 o 4 The preparation method of @PS-TMT nanoparticles comprises the following steps:

[0058] S1. Weigh 2119.2 mg of iron acetylacetonate and add it to 20 mL of diphenyl ether, then add 1 mL of oleylamine, 1 mL of ethylene glycol, and 1 mL of oleic acid, stir evenly, and react for 0.5 h at 200°C in a nitrogen atmosphere. After refluxing at 250°C for 1 hour, stop heating, cool to room temperature, magnetically separate the black product, and wash once with acetone to obtain ferric oxide nanoparticles coated with oleic acid-oleylamine;

[0059] S2. Disperse the iron ferric oxide nanoparticles wrapped with oleic acid-oleylamine obtained in step S1 into 2mL of dichloromethane, and add 500mg of cetyltrimethylammonium bromide, 0.6ml of n-butanol and 42mL of distilled water, stirred and mixed evenly, ultrasonicated for 10min to form a fine emulsion, and then heated at 60°C for 10min to remove dichloromethane to prepare a magnetic fer...

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Abstract

The invention discloses a magnetic Fe3O4@PS-TMT nanoparticle with an adsorption function and a preparation method thereof. The magnetic Fe3O4@PS-TMT nanoparticle with the adsorption function is a composite nanoparticle of ferroferric oxide nanoparticle aggregate surface-grafted styrene-mercapto-s-triazine resin; and the preparation method comprises the following steps: preparing a chloromethylatedmagnetic polystyrene nanoparticle by an emulsion polymerization method; and immobilizing a mercapto-s-triazine functional group on the surface of the magnetic polystyrene nanoparticle by a nucleophilic substitution reaction to prepare the magnetic Fe3O4@PS-TMT nanoparticle with the adsorption function. The magnetic Fe3O4@PS-TMT nanoparticle with the adsorption function provided by the invention has rich mercapto-s-triazine functional group on the surface, can rapidly adsorb a large number of heavy metal ions from an aqueous solution, and has relatively high saturated adsorption capacity for heavy metal ions such as mercury, lead, cadmium, chromium, manganese, nickel and copper; and the preparation method provided by the invention is simple, mild in condition, economical and environmentally friendly.

Description

technical field [0001] The invention relates to an adsorption function magnetic Fe 3 o 4 @PS-TMT nanoparticles and their preparation methods. Background technique [0002] With the development of industry and the growth of population, human activities have caused strong human disturbance to the water body environment, and heavy metal pollutants have entered the water body environment through various channels, making water heavy metal pollution an urgent environmental problem facing the world. Common heavy metal pollution mainly includes Cr, Mn, Cu, Ni, Hg, Pb, and Cd ions, which are highly toxic and non-degradable, and can be enriched and migrated into organisms through the food chain, and interact with enzymes and other biological macromolecules in organisms Combining and destroying the active structure of biomacromolecules, thereby seriously damaging the life and health of the human body and other organisms. For example, lead poisoning can reduce the ability of the thyr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F292/00C08F2/28C08F8/34C08F212/08C08F212/14B03C1/02B01J20/26B01J20/30B01J20/28C02F1/28
Inventor 陈志明宋娇娇汪春梅
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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