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Magnetic two-peak mesoporous carbon containing iron-nickel double metals, preparation method and application thereof

A bimetallic and mesoporous carbon technology, applied in the direction of alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve the problems of small adsorption capacity, weak magnetism, etc., and achieve difficult agglomeration and distribution Uniform, excellent magnetic properties

Inactive Publication Date: 2015-02-04
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently prepared magnetic mesoporous carbon materials only support one kind of metal material. At the same time, the pore size of the magnetic mesoporous material is also a single pore size, the adsorption capacity is small, and the magnetism is not strong at the same time.

Method used

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  • Magnetic two-peak mesoporous carbon containing iron-nickel double metals, preparation method and application thereof
  • Magnetic two-peak mesoporous carbon containing iron-nickel double metals, preparation method and application thereof
  • Magnetic two-peak mesoporous carbon containing iron-nickel double metals, preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0035] A magnetic bimodal mesoporous carbon containing iron-nickel bimetal of the present invention, the magnetic bimodal mesoporous carbon containing iron-nickel bimetal uses magnetic bimodal mesoporous carbon as a carrier, and iron-nickel alloy nanoparticles are dispersed on the magnetic bimodal mesoporous carbon The peak mesoporous carbon forms an ordered bimodal mesoporous structure, and the two peaks of the pore size distribution appear around 4nm and 18nm respectively, and the particle size of the iron-nickel alloy nanoparticles is 10nm-20nm.

[0036] A method for preparing the magnetic bimodal mesoporous carbon containing iron-nickel bimetal of the present embodiment, comprising the following steps:

[0037] 1. Preparation of mesoporous silicon template:

[0038] 1-1. First, put 4.0g of polyethylene oxide-polypropylene oxide-polyethylene oxide block copolymer P123 (manufactured by Sigma, with a molecular weight of 5800) in 160ml of HCl with a concentration of 1.5M, and ...

Embodiment 2

[0055] An application of the magnetic bimodal mesoporous carbon containing iron-nickel bimetal prepared in Example 1 in the removal of methylene blue and methyl orange in water, its application method specifically includes the following steps:

[0056] (1) Prepare 8 groups of 25mL aqueous solutions containing methylene blue with a concentration of 150mg / L, and adjust the pH values ​​to 3, 4, 5, 6, 7, 8, 9 and 10 respectively. Prepare 8 groups of 25mL 150mg / L aqueous solutions containing methyl orange in the same way, and adjust the pH values ​​to 3, 4, 5, 6, 7, 8, 9 and 10 respectively.

[0057] (2) Add 5 mg of magnetic bimodal mesoporous carbon containing iron-nickel bimetal to each group of solutions. After oscillating and adsorbing at 25 ° C and 150 rpm for 2 hours, magnetic separation by an external magnetic field is performed to complete the removal of dye pollutants in water. removal.

[0058] Then utilize the ultraviolet spectrophotometer to measure the content of rema...

Embodiment 3

[0061] An application of the magnetic bimodal mesoporous carbon containing iron-nickel bimetal prepared in Example 1 in the removal of methylene blue and methyl orange in water, its application method specifically includes the following steps:

[0062] Prepare 25 mL of an aqueous solution containing methyl orange at a concentration of 150 mg / L and 25 mL of an aqueous solution containing methylene blue at a concentration of 150 mg / L, and adjust the pH values ​​of the two aqueous solutions to be 7. Then add 5 mg of magnetic bimodal mesoporous carbon containing iron-nickel bimetal into two sets of aqueous solutions, and vibrate and adsorb at 25°C and 150rpm for 15min, 30min, 1h, 1.5h, 2h, 3h, 5h, 10h, 20h Finally, through magnetic separation by an external magnetic field, the removal of dye pollutants in the water body is completed.

[0063] Utilize the ultraviolet spectrophotometer to measure the content of remaining methylene blue and methyl orange in the solution, and calculat...

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Abstract

The invention discloses magnetic two-peak mesoporous carbon containing iron-nickel double metals, a preparation method and an application thereof. The magnetic two-peak mesoporous carbon adopts magnetic two-peak mesoporous carbon as a carrier, iron-nickle alloy nano particles are dispersed in the magnetic two-peak mesoporous carbon to form an ordered two-peak mesoporous structure with the hole diameters being 4nm-5nm and 15nm-20nm. The preparation method comprises the steps of preparing a mesoporous silicon template, preparing a compound, preparing the magnetic two-peak mesoporous carbon containing the iron-nickel double metals and the like. The invention adopts an initial-wetting impregnation method to prepare the magnetic two-peak mesoporous carbon containing the iron-nickel double metals; the prepared magnetic two-peak mesoporous carbon containing the iron-nickel double metals is large in specific surface area, uniform in distribution of iron-nickle alloy nano particles, difficult in aggregation, excellent in magnetic performance and stable in physicochemical property, can be applied to removal of dyestuff pollutants in water bodies, and has the advantages of large adsorption capacity, high removing efficiency, wide application range, simplicity and convenience in operation, strong practicability and the like.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a magnetic bimodal mesoporous carbon containing iron-nickel bimetal and a preparation method thereof, and an application of using the magnetic bimodal mesoporous carbon containing iron-nickel bimetal to remove dye pollutants in water. Background technique [0002] Dye pollutants mainly come from the discharge of industrial wastewater such as leather, printing and dyeing, pharmaceuticals, and food manufacturing. They have high toxicity and stability. In recent years, the research on its degradation transformation method has attracted extensive attention. [0003] At present, the methods for treating dye wastewater include activated sludge method, bioreactor, photocatalytic degradation, ion exchange and other methods. However, these methods all have problems such as cumbersome operation process and possible secondary pollution. Among the many methods for removing dye pollutant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/32C02F1/28C02F1/58
CPCB01J20/20B01J20/28009B01J20/28083B01J20/28092C02F1/281
Inventor 刘媛媛曾光明汤琳杨贵德章毅庞娅蔡叶周耀渝
Owner HUNAN UNIV
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