Unlock instant, AI-driven research and patent intelligence for your innovation.

Iron-nickel/graphene nano-composite material for adsorbing dye, and preparation method thereof

A composite material and graphene technology, applied in the direction of adsorption of water/sewage treatment, chemical instruments and methods, water pollutants, etc., can solve the problems of easy aggregation and oxidation stability of nano-magnetic materials, and achieve large specific surface area and excellent Electromagnetic characteristics, environment-friendly effect

Inactive Publication Date: 2020-12-01
BEIHANG UNIV
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of preparation conditions and application environment, nano-magnetic materials also have disadvantages such as easy agglomeration, easy oxidation and poor stability. The preparation of composite magnetic materials by material compounding is an important means to improve their structure and performance.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Iron-nickel/graphene nano-composite material for adsorbing dye, and preparation method thereof
  • Iron-nickel/graphene nano-composite material for adsorbing dye, and preparation method thereof
  • Iron-nickel/graphene nano-composite material for adsorbing dye, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The FeNi / rGO magnetic nanocomposite structure with excellent electromagnetic properties, large specific surface area, high surface activity and good adsorption properties consists of porous FeNi nanoparticles pinned on the rGO surface. Among them, the mass fraction of rGO is 5%, the mass fraction of FeNi nanoparticles is 95%, the molar ratio of Fe and Ni elements in FeNi nanoparticles is 1:1, and the average particle size of FeNi nanoparticles is 30 nm. Porous FeNi nanoparticles were pinned and grown uniformly on the surface of rGO by chemical reduction method, and a porous FeNi / rGO magnetic nanocomposite structure with uniform structure was prepared.

[0027] The preparation method of FeNi / 5% rGO magnetic nanocomposite structure containing 5wt% GO with excellent electromagnetic properties, large specific surface area, high surface activity and good adsorption properties includes the following steps:

[0028] (1) Dissolve 20 mg of GO powder in 100 mL of deionized water,...

Embodiment 2

[0040] The FeNi / rGO magnetic nanocomposite structure with excellent electromagnetic properties, large specific surface area, high surface activity and good adsorption properties consists of porous FeNi nanoparticles pinned on the rGO surface. Among them, the mass fraction of graphene oxide is 3%, the mass fraction of FeNi nanoparticles is 97%, the molar ratio of Fe and Ni elements in FeNi nanoparticles is 1:2, and the average particle size of FeNi nanoparticles is 35 nm. Porous FeNi nanoparticles were pinned and grown uniformly on the surface of rGO by chemical reduction method, and a porous FeNi / rGO magnetic nanocomposite structure with uniform structure was prepared.

[0041] The preparation method of FeNi / 3% rGO magnetic nanocomposite structure containing 3wt% GO with excellent electromagnetic properties, large specific surface area, high surface activity and good adsorption properties includes the following steps:

[0042] (1) Dissolve 50 mg of GO powder in 100 mL of deion...

Embodiment 3

[0052] The FeNi / rGO magnetic nanocomposite structure with excellent electromagnetic properties, large specific surface area, high surface activity and good adsorption properties consists of porous FeNi nanoparticles pinned on the rGO surface. Among them, the mass fraction of graphene oxide is 13%, the mass fraction of FeNi nanoparticles is 87%, the molar ratio of Fe and Ni elements in FeNi nanoparticles is 1:3, and the average particle size of FeNi nanoparticles is 40 nm. Porous FeNi nanoparticles were pinned and grown uniformly on the surface of rGO by chemical reduction method, and a porous FeNi / rGO magnetic nanocomposite structure with uniform structure was prepared.

[0053] The preparation method of FeNi / 13% rGO magnetic nanocomposite structure containing 13wt% GO with excellent electromagnetic properties, large specific surface area, high surface activity and good adsorption properties includes the following steps:

[0054] (1) Weigh 75 mg of GO powder and dissolve it in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
concentrationaaaaaaaaaa
particle sizeaaaaaaaaaa
adsorption capacityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a porous iron-nickel alloy (FeNi) / reduced graphene oxide (rGO) nano-composite material capable of efficiently adsorbing organic dyes such as methylene blue, methyl orange, Congo red and ethyl violet, and a preparation method thereof, and belongs to the technical field of magnetic metal-carbon nano-composite materials and preparation thereof. Bivalent iron ions, bivalent nickel ions and graphene oxide are subjected to co-reduction by adopting a chemical reduction method to form porous FeNi nano-particles, and the porous FeNi nano-particles are pinned on the surface of the rGO to obtain a FeNi / rGO magnetic nano-composite structure with a uniform structure. The magnetic nano-composite structure has excellent electromagnetic characteristics, large specific surface areaand high surface activity, has excellent adsorption performance on organic dyes, and is suitable for adsorption and purification occasions of industrial dyes and wastewater. The nano-composite material has the characteristics of rich raw material sources, simple technological process, easiness in regulation and control of the preparation process, environmental friendliness, reusability, suitability for industrial production and the like.

Description

technical field [0001] The invention belongs to the technical field of magnetic metal-carbon nanocomposite materials and preparation thereof, and particularly relates to a porous iron-nickel alloy (FeNi) / reduced graphene oxide (rGO) magnetic nanocomposite material and a preparation method thereof. Background technique [0002] When the size of metal or oxide magnetic particles is reduced to the nanoscale range, they can exhibit some physical properties different from those of large-sized particles or bulk materials, such as surface effect, volume effect, quantum size effect and macroscopic quantum tunneling. effect, etc.; at the same time, it also exhibits magnetic properties different from conventional magnetic materials. Nanomagnetic materials have excellent physical and chemical properties due to their nano-size effect, which makes them have broad application prospects in the fields of catalytic reactions, electromagnetic wave absorption, environmental purification, and b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/30
CPCB01J20/20B01J20/02B01J20/28009C02F1/283C02F2101/308
Inventor 杨白潘玮珍李然于荣海
Owner BEIHANG UNIV