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Epoxy chloropropane modified Fe3O4 magnetic nanometer material as well as preparation and application thereof

A technology of epichlorohydrin and magnetic nanometers, applied in other chemical processes, chemical instruments and methods, oxidized water/sewage treatment, etc., can solve problems such as low yield, complicated preparation process, and long process flow, and achieve adsorption capacity Large, excellent adsorption performance, the effect of excellent heavy metal ion adsorption performance

Active Publication Date: 2018-07-24
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process involved in the two-step method is long, the preparation process is complicated and the yield is low

Method used

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  • Epoxy chloropropane modified Fe3O4 magnetic nanometer material as well as preparation and application thereof
  • Epoxy chloropropane modified Fe3O4 magnetic nanometer material as well as preparation and application thereof
  • Epoxy chloropropane modified Fe3O4 magnetic nanometer material as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of epichlorohydrin modified Fe 3 o 4 Magnetic nanomaterial, its preparation method comprises the following steps:

[0033] 1) Add 0.834g FeSO 4 ·7H 2 O was added to 10mL epichlorohydrin, and stirred evenly in a water bath at 50°C; 2)

[0034] Add 0.502g KOH to the mixed solution obtained in step 1), and continue to stir to obtain the reaction solution after 30min;

[0035] 3) Seal the reaction solution in a reaction kettle, react at 120°C for 4 hours, anneal and cool, collect the solid particles by magnetic separation, and wash them with 3×10mL ethanol and 3×10mL H 2 After O is washed to neutral, it is air-dried at room temperature to obtain the epichlorohydrin modified Fe 3 o 4 magnetic nanomaterials.

[0036] The X-ray diffraction analysis result of the product obtained in this embodiment is shown in figure 1 , the characteristic peaks in the figure are related to Fe 3 o 4 It is consistent with the standard spectrum (JCPDS No.65-3107), indicating that...

Embodiment 2

[0042] A kind of epichlorohydrin modified Fe 3 o 4 Magnetic nanomaterial, its preparation method comprises the following steps:

[0043] 0.834g FeSO 4 ·7H 2 O was added to 10 mL of epichlorohydrin, and stirred evenly in a water bath at 50 °C. Then add 0.502g KOH, and continue to stir for 30min to obtain a reaction solution. The reaction solution was sealed in a reaction kettle and reacted at 110°C for 4 hours, then annealed and cooled, and the resulting solid particles were collected by magnetic separation, and washed with 3×10mL ethanol and 3×10mL H 2 After O is washed to neutral, room temperature is air-dried to obtain the described epichlorohydrin modified Fe 3 o 4 Magnetic Nanomaterials.

Embodiment 3

[0045] A kind of epichlorohydrin modified Fe 3 o 4 Magnetic nanomaterial, its preparation method comprises the following steps:

[0046] 0.834g FeSO 4 ·7H 2 O was added to 10 mL of epichlorohydrin, and stirred evenly in a water bath at 50 °C. Then add 0.502g KOH, and continue to stir for 30min to obtain a reaction solution. The reaction solution was sealed in a reaction kettle and reacted at 170°C for 4 hours, then annealed and cooled, and the resulting solid particles were collected by magnetic separation, and washed with 3×10mL ethanol and 3×10mL H 2 After O is washed to neutral, room temperature is air-dried to obtain the described epichlorohydrin modified Fe 3 o 4 Magnetic Nanomaterials.

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Abstract

The invention discloses an epoxy chloropropane modified Fe3O4 magnetic nanometer material as well as preparation and application thereof, and belongs to the fields of synthesis of a magnetic functional material and water treatment application. The epoxy chloropropane modified Fe3O4 magnetic nanometer material is synthesized through one step by an oxidation precipitation method and by taking epoxychloropropane as a reaction medium and a modifier and ferrite as an iron source; the material can be used for adsorbing and removing heavy metal copper ions from water and can be further used for catalytically degrading newly developed organic pollutants (such as metronidazole) in water after adsorbing the copper ions; furthermore, the raw materials of the preparation method are cheap and easily available, the preparation method is simple and convenient to operate, the energy consumption is low and the epoxy chloropropane modified Fe3O4 magnetic nanometer material is as comprehensive water treatment agent with wide application prospect.

Description

technical field [0001] The invention belongs to the field of synthesis of magnetic functional materials and water treatment application, in particular to an epichlorohydrin modified Fe 3 o 4 Magnetic nanomaterials and their preparation methods and applications. Background technique [0002] Fe 3 o 4 Nanoparticles have excellent properties such as cheap and easy to obtain, easy magnetic separation and recovery, and peroxidase-like catalytic activity. They have potential application prospects in magnetic separation and environmental management. But pure Fe 3 o 4 Few surface active sites, activated H 2 o 2 Limited capacity (if required H 2 o 2 concentration, long reaction time, high temperature, etc.), it is difficult to meet practical application. [0003] Surface modification can increase Fe 3 o 4 The number of active sites on the surface of nanoparticles improves their adsorption and catalytic properties. Preparation of Fe 3 o 4 Usually water or ethylene glyco...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/28B01J20/30B01J31/28C02F1/28C02F1/72C02F101/20C02F101/30
CPCB01J20/0229B01J20/223B01J20/28009B01J20/28054B01J31/28C02F1/285C02F1/725C02F2101/20C02F2101/30
Inventor 陈逢喜黄轩麟
Owner WUHAN INSTITUTE OF TECHNOLOGY
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