CN109336188A - A kind of RGO@Fe3O4The synthetic method of composite nano materials - Google Patents
A kind of RGO@Fe3O4The synthetic method of composite nano materials Download PDFInfo
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- CN109336188A CN109336188A CN201811584593.5A CN201811584593A CN109336188A CN 109336188 A CN109336188 A CN 109336188A CN 201811584593 A CN201811584593 A CN 201811584593A CN 109336188 A CN109336188 A CN 109336188A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/08—Ferroso-ferric oxide (Fe3O4)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/184—Preparation
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
Abstract
The invention discloses a kind of RGO@Fe3O4The synthetic method of composite nano materials.The present invention is under the conditions of NaAc_HAc buffer solution, using chitosan as reactant by RGO(reduced form graphene) and Fe3O4It is combined, prepares multi-functional RGO@Fe3O4Composite nano materials.The present invention overcomes composite nano materials sizes in the prior art to be difficult to control, disperses uneven, RGO and Fe3O4It is difficult to form the defect of good composite nano materials.RGO@Fe3O4Composite nano materials large specific surface area, uniform particle diameter, pattern are adjustable etc..Simple synthetic method of the invention is easy, the RGO@Fe of preparation3O4Composite nano materials, catalysis, sensing, light, in terms of realize important application value.
Description
Technical field
The present invention relates to RGO@Fe3O4The synthetic method of composite nano materials.
Background technique
Although possessing perfect lattice structure, textural anomaly it is well known that graphene is made of monoatomic layer
Stablize.Two-dimensional graphene can be assembled into other all graphitic carbon materials, can crimp as zero dimension fullerene, and seaming is one-dimensional carbon
Nanotube, or it is stacked as three-dimensional graphite.Connection in graphene between each carbon atom is very flexible, this makes graphene also than diamond
Hard, intensity reaches 130 GPa, is find so far most thin while being but also most hard nano material.Stable lattice
Structure makes graphene have excellent electric conductivity.The valence band (pi-electron) and conduction band (π of graphene*Electronics) intersect at Fermi's energy
At grade, it is in the carrier near fermi level and shows linear dispersion relationship.In graphene, the movement velocity of electronics is reachable
To the 1/300 of the light velocity；Its electron mobility is more than 15000 cm under room temperature2/ Vs, under given conditions (at such as cryogenic quenching
Reason etc.) its mobility even can achieve 25000 cm2/ Vs, it is high more than carbon nanotubes or crystalline silicon, and its resistivity is about
10-6Ω cm, it is lower than copper or silver, it is the current the smallest material of resistivity in the world.The had high temperature stable of graphene
Property, the advantageous properties such as huge specific surface area match in excellence or beauty or better than carbon nanotubes.In addition, two-dimension single layer plumbago alkene is considered as other
The basic component units of graphitic carbon material are rolled up if single-layer graphene can encapsulate the fullerene for zero dimension as one-dimensional carbon nanotube
(CNT), it is stacked as three-dimensional graphite.
The nanoscale effect that not only there is graphene nano material usually to be shown, skin effect, self assembly effect,
With it is surface-functionalized etc., unique electron transmission performance, two-dimensional structure is very suitable to covalent with generations such as other nano materials
Or the features such as Non-covalent binding, all broader thinking is provided in terms of modified electrode and building biosensor for it.Stone
The unique electronic transfer characteristic that black alkene has, widely distributed faceted pebble pyrolytic graphite (EPPG) electro-chemical activity structure, high heat
Stability and chemical stability etc. construct electrochemical sensor for it and provide many advantages.It is known that graphene has big table
Area can be used as nano material scaffold, form composite nano materials.
Magnetic nano-particle by surface modification and have certain charge or functional group, can in conjunction with specific antibody,
As pharmaceutical carrier transporting for drug.This magnetic carrier can be transported drug by means of the guiding role of externally-applied magnetic field
Control release is carried out to the scheduled diseased region of human body, toxic side effect can be reduced in this way, does not kill normal cell, and can drop
Low drug dose substantially increases drug efficiency, therefore is visually known as " biological missile " technology.
The present invention provides new RGO@Fe3O4The synthetic method of composite nano materials can control particle size and stone
Black alkene and magnetic nanoparticle, which are combined together, can play property, catalysis, sensing, light, in terms of realize it is important
Application value.
Summary of the invention
Goal of the invention: the present invention provides a kind of RGO@Fe3O4The new method of composite nano materials synthesis.
Technical solution: it is difficult to prepare the good RGO@Fe of crystal form for currently available technology3O4Composite nano materials lack
It falls into, the present invention provides a kind of RGO@Fe3O4The new method of composite nano materials synthesis.
A kind of RGO@Fe3O4The synthetic method of composite nano materials, it is characterised in that be made by following steps:
(1) it weighs a certain amount of sodium acetate to be dissolved in water, adjusts pH value 5~6.5 with glacial acetic acid, be diluted with water；
(2) using above-mentioned buffer solution as solvent compound concentration 0.1~10mg/mL chitosan solution A；
(3) reduced form graphene suspension, 1~10h of ultrasound under room temperature, then according to molar ratio are prepared by solvent of solution A
RGO:Fe3O4The Fe of the Aqueous dispersions made is added in 10:1~1:103O4Suspension, 0.1~10h of ultrasound, by products therefrom
Centrifuge washing obtains corresponding product.
RGO@Fe according to claim 13O4The synthetic method of composite nano materials is it is characterized by: in step (3)
The Fe3O4Partial size is 5~500nm.
The utility model has the advantages that
The invention has the advantages that the present invention overcomes composite nano materials sizes in the prior art to be difficult to control, dispersion is uneven,
RGO and Fe3O4It is difficult to form the defect of good composite nano materials.RGO@Fe3O4Composite nano materials large specific surface area, grain
Diameter is uniform, pattern is adjustable etc..Simple synthetic method of the invention is easy, the RGO@Fe of preparation3O4Composite nano materials, catalysis,
Sensing, light, electricity etc. realize important application value.
Detailed description of the invention
Fig. 1 is 1 experimental group TEM result figure of the embodiment of the present invention.
Specific embodiment
Embodiment 1
Weighing 1.08g sodium acetate adds water 10mL to dissolve, and adjusts pH value to 5 with glacial acetic acid, 20mL is diluted with water to, with above-mentioned buffering
Solution is that solvent prepares 0.5mg/mL chitosan solution 4mL.RGO solution, room temperature ultrasound 1h are prepared by solvent of chitosan solution.
Then according to molar ratio RGO:Fe3O4The Fe of the Aqueous dispersions made is added in=1:103O4Suspension, ultrasonic 30min, by institute
Product centrifuge washing is obtained, corresponding product is obtained.Products obtained therefrom electronics transmission electron microscope (TEM) characterization result of the present invention is shown in Fig. 1.
Embodiment 2
Weighing 1.08g sodium acetate adds water 10mL to dissolve, and adjusts pH value to 5 with glacial acetic acid, 20mL is diluted with water to, with above-mentioned buffering
Solution is that solvent prepares 0.5mg/mL chitosan solution 4mL.RGO solution, room temperature ultrasound 1h are prepared by solvent of chitosan solution.
Then according to molar ratio RGO:Fe3O4The Fe of the Aqueous dispersions made is added in=10:13O4Suspension, ultrasonic 30min, by institute
Product centrifuge washing is obtained, corresponding product is obtained.
Embodiment 3
Weighing 1.08g sodium acetate adds water 10mL to dissolve, and adjusts pH value to 5 with glacial acetic acid, 20mL is diluted with water to, with above-mentioned buffering
Solution is that solvent prepares 0.5mg/mL chitosan solution 4mL.RGO solution, room temperature ultrasound 1h are prepared by solvent of chitosan solution.
Then according to molar ratio RGO:Fe3O4The Fe of the Aqueous dispersions made is added in=5:13O4Suspension, ultrasonic 30min, by institute
Product centrifuge washing is obtained, corresponding product is obtained.
Embodiment 4
Weighing 1.08g sodium acetate adds water 10mL to dissolve, and adjusts pH value to 5 with glacial acetic acid, 20mL is diluted with water to, with above-mentioned buffering
Solution is that solvent prepares 0.5mg/mL chitosan solution 4mL.RGO solution, room temperature ultrasound 1h are prepared by solvent of chitosan solution.
Then according to molar ratio RGO:Fe3O4The Fe of the Aqueous dispersions made is added in=1:13O4Suspension, ultrasonic 30min, by institute
Product centrifuge washing is obtained, corresponding product is obtained.
Embodiment 5
Weighing 1.08g sodium acetate adds water 10mL to dissolve, and adjusts pH value to 5 with glacial acetic acid, 20mL is diluted with water to, with above-mentioned buffering
Solution is that solvent prepares 0.5mg/mL chitosan solution 4mL.RGO solution, room temperature ultrasound 1h are prepared by solvent of chitosan solution.
Then according to molar ratio RGO:Fe3O4The Fe of the Aqueous dispersions made is added in=1:53O4Suspension, ultrasonic 30min, by institute
Product centrifuge washing is obtained, corresponding product is obtained.Products obtained therefrom electronics transmission electron microscope (TEM) characterization result of the present invention is shown in Fig. 1.
The above is only a preferred embodiment of the present invention, it should be pointed out that: those skilled in the art are come
It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (2)
1. a kind of RGO@Fe3O4The synthetic method of composite nano materials, it is characterised in that be made by following steps:
(1) it weighs a certain amount of sodium acetate to be dissolved in water, adjusts pH value 5~6.5 with glacial acetic acid, be diluted with water；
(2) using above-mentioned buffer solution as solvent compound concentration 0.1~10mg/mL chitosan solution A；
(3) reduced form graphene suspension, 1~10h of ultrasound under room temperature, then according to molar ratio are prepared by solvent of solution A
RGO:Fe3O4The Fe of the Aqueous dispersions made is added in 10:1~1:103O4Suspension, 0.1~10h of ultrasound, by products therefrom
Centrifuge washing obtains corresponding product.
2. Fe described in (3) according to claim 13O4Partial size is 5~500nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584593.5A CN109336188B (en) | 2018-12-24 | 2018-12-24 | RGO @ Fe3O4Method for synthesizing composite nano material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811584593.5A CN109336188B (en) | 2018-12-24 | 2018-12-24 | RGO @ Fe3O4Method for synthesizing composite nano material |
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| CN109336188A true CN109336188A (en) | 2019-02-15 |
| CN109336188B CN109336188B (en) | 2021-02-19 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974371A (en) * | 2014-04-11 | 2015-10-14 | 山东大学 | Preparation method of graphene/chitosan porous composite material |
| CN106700136A (en) * | 2016-11-18 | 2017-05-24 | 武汉理工大学 | Graphene/chitosan composite material and preparation method thereof |
| CN106750571A (en) * | 2015-11-19 | 2017-05-31 | 青岛智信生物科技有限公司 | The preparation method of reduced graphene-Chitosan Composites |
-
2018
- 2018-12-24 CN CN201811584593.5A patent/CN109336188B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974371A (en) * | 2014-04-11 | 2015-10-14 | 山东大学 | Preparation method of graphene/chitosan porous composite material |
| CN106750571A (en) * | 2015-11-19 | 2017-05-31 | 青岛智信生物科技有限公司 | The preparation method of reduced graphene-Chitosan Composites |
| CN106700136A (en) * | 2016-11-18 | 2017-05-24 | 武汉理工大学 | Graphene/chitosan composite material and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| HOANG V TRAN等: "Graphene oxide/Fe3O4/chitosan nanocomposite: a recoverable and recyclable adsorbent for organic dyes removal. Application to methylene blue", 《MATER. RES. EXPRESS》 * |
| PENG ZHANG等: "Highly efficient enrichment of low-abundance intact proteins by core-shell structured Fe3O4-chitosan@graphene composites", 《TALANTA》 * |
| Y. LI等: "Magnetic-Fluorescent Fe3O4@Chitosan-Graphene Quantum Dots Nanocomposites for Dual-modal nanoprobes of Fluorescence and Magnetic Resonance Imaing", 《2018 IEEE INTERNATIONAL MAGNETICS CONFERENCE(INTERMAG)》 * |
| 王乐乐等: "磁性氧化石墨烯/壳聚糖纳米复合材料的制备及其对UO2+2的吸附性能", 《原子能科学技术》 * |
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