Preparation method of nano ferroferric oxide loaded graphene compound

A technology of ferroferric oxide and graphene, which is applied in the field of preparation of nanometer ferroferric oxide-loaded graphene composites, can solve the problems of low coverage, many steps, high cost, etc., achieve wide application prospects, simple preparation method, coverage high rate effect

Inactive Publication Date: 2013-01-30
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the preparation methods of nano-ferric oxide-supported graphene composites mainly have the following shortcomings: (1) The preparation process has m

Method used

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  • Preparation method of nano ferroferric oxide loaded graphene compound
  • Preparation method of nano ferroferric oxide loaded graphene compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take 20 mL of graphene oxide-diethylene glycol solution with a concentration of 1.5 mg / mL, add 30 mg of ferric chloride and stir for 1 h, then pass through N 2 Protect, stir, and slowly heat to 220°C, keep warm for 1h, add 5mL of 10mg / mL sodium hydroxide-diethylene glycol stock solution to the reaction system, keep at 220°C, and stir for 1h.

Embodiment 2

[0020] Take 20 mL of graphene oxide-diethylene glycol solution with a concentration of 1.5 mg / mL, add 60 mg of ferric chloride and stir for 1 h, then pass through N 2 Protect, stir, and slowly heat to 220°C, keep warm for 1h, add 5mL of 10mg / mL sodium hydroxide-diethylene glycol stock solution to the reaction system, keep at 220°C, and stir for 1h.

Embodiment 3

[0022] Take 20 mL of graphene oxide-diethylene glycol solution with a concentration of 1.5 mg / mL, add 90 mg of ferric chloride and stir for 1 h, then pass through N 2 Protect, stir, and slowly heat to 220°C, keep warm for 1h, add 5mL of 10mg / mL sodium hydroxide-diethylene glycol stock solution to the reaction system, keep at 220°C, and stir for 1h.

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Abstract

The invention provides a preparation method of a nano ferroferric oxide loaded graphene compound, and relates to a preparation method of a nano ferroferric oxide loaded graphene compound having high dispersity, large coverage density and controllable particle size. The preparation method comprises the following steps: preparing a 5-15 mg/mL mixed stock solution of sodium hydroxide and diethylene glycol; then preparing a 0.5-3.5 mg/mL mixed solution of graphene oxide and diethylene glycol; and taking the mixed stock solution of sodium hydroxide and diethylene glycol, and then quickly adding into the mixed solution to obtain the nano ferroferric oxide loaded graphene compound. The nano ferroferric oxide loaded graphene compound prepared by the method has the advantages of pure ferroferric oxide crystalline phase, small size, no aggregation and high coverage rate. Thus, the compound has wide application prospects in the aspects such as magnetic separation, biological medical treatment, electromagnetic materials and the like.

Description

technical field [0001] The invention belongs to the field of preparation of nanometer ferric oxide-loaded graphene composite materials, and in particular relates to a preparation method of nanometer ferric oxide-loaded graphene composites with high dispersion, high coverage density and controllable particle size. Background technique [0002] Graphene is a hexagonal honeycomb two-dimensional planar film composed of carbon atoms. This unique single atomic layer structure endows graphene with special physical and chemical properties, such as ultra-thin thickness, high specific surface area, high mechanical strength, Strong thermal conductivity and electrical conductivity. Therefore, it has a wide range of applications in photoelectrocatalysis, sensing, and energy storage. Nano-iron ferric oxide has the advantages of high magnetic strength, low toxicity, and good biocompatibility, and has broad application prospects in the fields of biosensors and drug release. The composite ...

Claims

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Application Information

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IPC IPC(8): C01G49/08C01B31/04B82Y30/00C01B32/184C01B32/194
Inventor 王育乔张慧君姚丹初文静孙岳明
Owner SOUTHEAST UNIV
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