Copper-doped Fe3O4 magnetic composite nanomaterial as well as preparation method and application thereof

A magnetic composite nanometer, copper-doped technology, applied in chemical instruments and methods, water/sludge/sewage treatment, metal/metal oxide/metal hydroxide catalysts, etc. It can achieve the effect of strong catalytic degradation ability at room temperature, simple raw materials, and favorable mass production.

Inactive Publication Date: 2016-01-06
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for efficient manufacturing of highly pure iron oxide with high specific area and stable properties that could have applications in various industries such as environmental remediation or chemical synthesis. It also includes methods for producing this material through an improved thermochemistry technique called ICEM which involves heat treating certain metals at very precise temperatures without decomposing them during their formation.

Problems solved by technology

This technical problem addressed in this patents relates to improving chemical oxide reduction technologies like acid treatment systems or hydrogen peroxide activation processes due to limitations associated with current methods involving complex mixtures containing various metals. These techniques can lead to contamination from other substances present during processing. Therefore, researchers focused their efforts towards developing new ways to overcome these issues without compromising its effectiveness.

Method used

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  • Copper-doped Fe3O4 magnetic composite nanomaterial as well as preparation method and application thereof
  • Copper-doped Fe3O4 magnetic composite nanomaterial as well as preparation method and application thereof
  • Copper-doped Fe3O4 magnetic composite nanomaterial as well as preparation method and application thereof

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Embodiment 1

[0034] A copper-doped Fe 3 o 4 A preparation method for a magnetic composite nanomaterial, comprising the following steps:

[0035] Heat and stir 20mmol choline chloride and 40mmol urea at 50°C to prepare an ionic deep eutectic solvent; add 3mmol FeSO to the resulting ionic deep eutectic solvent 4 ·7H 2 O and 5.2mmolKOH, stir evenly to obtain a mixed solution, and continue to add 3.75mmolKOH and 0.15mmolCuCl to the resulting mixed solution 2 2H 2O, continue stirring evenly to obtain a reaction solution; place the obtained reaction solution in an oven at 110°C for 4 hours, anneal and cool, collect the obtained solid particles by magnetic separation, and finally wash and dry to obtain the final product.

[0036] The X-ray diffraction analysis result of the product obtained in this embodiment is shown in figure 1 , figure 1 The characteristic peaks in the Fe 3 o 4 The standard collection of illustrative plates is consistent (JCPDSNo.65-3107), shows that the product partic...

Embodiment 2

[0046] A copper-doped Fe 3 o 4 A preparation method for a magnetic composite nanomaterial, comprising the following steps:

[0047] Heat and stir 20mmol choline chloride and 40mmol urea at a temperature of 50°C to obtain an ionic deep eutectic solvent; add 6mmol FeSO to the obtained ionic deep eutectic solvent 4 ·7H 2 O and 10.4mmolKOH, stir evenly to obtain a mixed solution, and continue to add 7.5mmolKOH and 0.15mmolCuCl to the resulting mixed solution 2 2H 2 O, continue to stir evenly to obtain a reaction solution; place the obtained reaction solution in an oven at 110°C for 4 hours, anneal and cool, and magnetically separate and collect the resulting solid particles, and finally wash and dry to obtain the copper-doped Fe 3 o 4 Magnetic composite nanomaterials.

Embodiment 3

[0049] A copper-doped Fe 3 o 4 A preparation method for a magnetic composite nanomaterial, comprising the following steps:

[0050] Heat and stir 20mmol choline chloride and 40mmol urea at a temperature of 50°C to obtain an ionic deep eutectic solvent; add 0.8mmol FeSO to the obtained ionic deep eutectic solvent 4 ·7H 2 O and 1mmolKOH, stir evenly to obtain a mixed solution, continue to add 1.4mmolKOH and 0.08mmolCuCl to the resulting mixed solution 2 2H 2 O, continue to stir evenly to obtain a reaction solution; place the obtained reaction solution in an oven at 110°C for 6 hours, anneal and cool, and magnetically separate and collect the resulting solid particles, and finally wash and dry to obtain the copper-doped Fe 3 o 4 Magnetic composite nanomaterials.

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Abstract

The invention discloses a copper-doped Fe3O4 magnetic composite nanomaterial as well as a preparation method and application thereof, and belongs to the field of magnetic nanoparticles and water treatment research. The copper-doped Fe3O4 magnetic composite nanomaterial (Cu-Fe3O4) is prepared by taking an iron source, a copper source and an alkali source as the raw materials to react in an ionic deep eutectic solvent by using an ionothermal method. The prepared Cu-Fe3O4 can be used as a multi-phase Fenton-like catalyst, has excellent capability of degrading organic matters (such as dyes) in the wastewater, can be easily separated and recycled magnetically, is stable in reusability (for example, the room-temperature degrading and decolorizing rate of the Cu-Fe3O4 on a rhodamine B solution serving as a frequently-used industrial dye still can reach up to 85% after the Cu-Fe3O4 is repeatedly used for 8 times, and k1 is 0.0132-1min). As a novel magnetic environment-friendly material, the copper-doped Fe3O4 magnetic composite nanomaterial is low in cost, quick and convenient to operate, obvious in effect and broad in application prospect.

Description

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Claims

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Application Information

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Owner WUHAN INSTITUTE OF TECHNOLOGY
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