A preparation method of magnetic hollow carbon nanospheres with high adsorption performance

A carbon nanosphere, high adsorption technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of complex operation and high energy consumption

Active Publication Date: 2021-09-14
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of complex preparation operation and high energy consumption of existing magnetic hollow carbon nanospheres, and to provide a simple preparation method of magnetic hollow carbon nanospheres with high adsorption performance

Method used

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  • A preparation method of magnetic hollow carbon nanospheres with high adsorption performance
  • A preparation method of magnetic hollow carbon nanospheres with high adsorption performance
  • A preparation method of magnetic hollow carbon nanospheres with high adsorption performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 0.1 g of 1,5-dihydroxynaphthalene and add it to 20 mL of solvent toluene, then add 0.3 g of ferrocene, 0.5 g of P123, and 1 mL of hydrogen peroxide with a mass fraction of 30% to prepare a mixed solution, and add it to a microwave reaction tube with a specification of 30 mL.

[0031] Add magnetons into the microwave reaction tube containing the mixed solution, place the microwave reaction tube in the microwave reactor, heat to 210° C. under stirring for 75 seconds, stop heating, and cool to room temperature. Transfer the mixed solution to a centrifuge tube, centrifuge at 8000r / min for 5min, and collect the precipitate.

[0032] Add 40 mL of absolute ethanol to the precipitate, centrifuge at 8000 r / min for 5 min, collect the precipitate, wash with absolute ethanol, and repeat the washing 3 times.

[0033] Add 40 mL of deionized water to the precipitate, centrifuge at 8000 r / min for 5 min, wash the precipitate, and repeat the above washing process until the centrifu...

Embodiment 2

[0042] Weigh 0.08g of 1,5-dihydroxynaphthalene, add 15mL solvent toluene, add ferrocene 0.2g, P123 0.3g, 30% hydrogen peroxide 0.8mL to make a mixed solution, add it into a 30mL microwave reaction tube, and add magneton , placed in a microwave reactor for heating and stirring, when heated to 215°C for 83s, stop heating and cool to room temperature. Afterwards, the method in Example 1 was followed to prepare magnetic hollow carbon nanospheres with a particle size of about 40 nm and regular shapes.

Embodiment 3

[0044] Weigh 0.12g of 1,5-dihydroxynaphthalene, add it to 20mL solvent toluene, add ferrocene 0.25g, P1230.4g, 30% hydrogen peroxide 0.9mL to prepare a mixed solution, add it to a 30mL microwave reaction tube, and add a magnetic Place the child in a microwave reactor for heating and stirring. When heating to 220°C for 90s, stop heating and cool to room temperature. Afterwards, the method in Example 1 was followed to prepare magnetic hollow carbon nanospheres with a particle size of about 40 nm, and the particle size was uniform.

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Abstract

The invention discloses a method for preparing magnetic hollow carbon nanospheres with high adsorption performance, which uses 1,5-dihydroxynaphthalene as a carbon source, and adds Ferrocene is the iron source, and it is prepared by microwave heating to 200-220°C for solvothermal reaction. The magnetic hollow carbon nanosphere prepared by the invention has magnetism and obvious hollow structure, and can be used as an adsorbent with high adsorption capacity and easy recovery and reuse, and can be applied to the fields of sewage treatment, oil desulfurization, targeted drug delivery and the like.

Description

technical field [0001] The invention belongs to the technical field of nano-carbon material preparation, and relates to a method for preparing carbon nanospheres, in particular to a method for preparing magnetic carbon nanospheres with a hollow structure. Background technique [0002] As a new type of carbon material, hollow carbon nanospheres have many excellent physical and chemical properties due to their special hollow structure, such as large specific surface area, low density, high porosity, excellent electrical conductivity, good Chemical stability and thermal stability etc. Therefore, it is widely used in the fields of adsorbents, lithium-ion batteries, catalyst supports, molecularly imprinted materials, and drug packaging. [0003] Coking wastewater is a kind of toxic wastewater. After biological dephenolization treatment, although a large number of pollutants have been removed, the indicators such as ammonia nitrogen are still difficult to meet the standards. Amon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/16
CPCB01J20/20B01J20/28009B01J20/28021C02F1/283C02F2101/16
Inventor 刘旭光崔燕康伟伟秦蕾杨永珍
Owner TAIYUAN UNIV OF TECH
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