CN107739028A - A kind of method for preparing magnetic oxygenated graphene using NH3H2O NH4Cl solution - Google Patents
A kind of method for preparing magnetic oxygenated graphene using NH3H2O NH4Cl solution Download PDFInfo
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- CN107739028A CN107739028A CN201710997017.2A CN201710997017A CN107739028A CN 107739028 A CN107739028 A CN 107739028A CN 201710997017 A CN201710997017 A CN 201710997017A CN 107739028 A CN107739028 A CN 107739028A
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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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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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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
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/42—Magnetic properties
Abstract
The invention discloses one kind to utilize NH3·H2O‑NH4The method that Cl solution prepares magnetic oxygenated graphene, including graphene oxide solution is prepared, by graphene oxide solution, iron salt solutions and NH3·H2O‑NH4Cl solution mixes, and is warming up to 50~70 DEG C, 70~90 DEG C are warming up under subsequent ultrasound condition, and magnetic oxygenated graphene is made.The remarkable advantage of the present invention is to utilize ultrasound and NH3·H2O‑NH4Both Cl solution effectively combines, and stabilizes production technology, easy to operate, prepares the magnetic oxygenated graphene of superior performance.
Description
Technical field
The present invention relates to a kind of method for preparing magnetic oxygenated graphene, more particularly to one kind to utilize NH3·H2O-NH4Cl
The method that solution prepares magnetic oxygenated graphene, belong to graphene oxide field.
Background technology
Today's society, as modern industry develops rapidly, pollution of waterhead problem is on the rise, and has had a strong impact on national warp
The sustainable development of Ji and the raising of people's quality of the life.The particularly noxious material such as organic solvent and heavy metal ion is to water quality
Destruction it is more serious, caused the generation of a lot of accidents, and great harm is caused to the health of the common people.
Graphene oxide is a kind of two-dimentional carbon material for possessing very big specific surface area and a large amount of active reactive groups, to very
More organic solvents and heavy metal ion have very strong adsorption capacity, it is considered to be eliminate noxious material in water, purify water
One of leading candidate thing.However, although simple graphene oxide product is with very strong adsorption capacity, its small chi
It is very little, it is caused very big difficulty in recycling method.Graphene oxide is modified with ferromagnetic material ferroso-ferric oxide,
Its magnetic is assigned, is to solve the problems, such as the effective means of above-mentioned recovery.Therefore, the excellent magnetic oxygenated graphene of synthesis quality
It is significant to field of environment protection.
In magnetic oxygenated graphene building-up process, stable pH value is steady to the product quality and product of magnetic oxygenated graphene
It is qualitative most important.But in prepared by traditional magnetic oxygenated graphene, people use NaOH or NH mostly3·H2O creates necessary
Alkalescence condition, but in building-up process, due to the continuous consumption of hydroxide ion, the pH value of system can also decline therewith, from
And cause magnetic oxygenated graphene quality deterioration and properties of product it is unstable, and cause magnetic oxygenated graphene industry metaplasia
Production is difficult to carry out.
At present, this area has technical staff to use ultrasonic means in the synthesis of magnetic oxygenated graphene, but ultrasound is
It is carried out continuously before graphite oxide loads ferroso-ferric oxide, it is acted on also simply improves graphene oxide to a certain extent
Scattered and dissociation effect, this method be only merely a kind of simple physical dispersion dissociating method, four oxidations three can not be realized
Modification or modification effect of the iron to graphene oxide are poor.In addition, still many problems, example be present using ultrasonic reactor at present
Such as the corrosion failure that reaction solution is popped one's head in ultrasonic reactor, the open body that the maintenance reaction liquid pH such as raw material are added dropwise is not fitted through
System is, it is necessary to which external thermal source regulates and controls etc. to reaction temperature.
The content of the invention
Goal of the invention：It is an object of the invention to provide one kind to utilize NH3·H2O-NH4Cl is solution-stabilized prepare it is magnetic oxygenated
The method of graphene, this method can promote graphene oxide to be dissociated into two-dimensional slice structure so that ferroso-ferric oxide inserts oxygen
The interlayer of graphite alkene, fabricated in situ ferroso-ferric oxide simultaneously assign graphene oxide magnetic.
Technical scheme：The present invention utilizes NH3·H2O-NH4The method that Cl solution prepares magnetic oxygenated graphene, including prepare
Graphene oxide solution, by the graphene oxide solution, iron salt solutions and NH3·H2O-NH4Cl solution mixes, it is warming up to 50~
70 DEG C, 70~90 DEG C are warming up under subsequent ultrasound condition, and magnetic oxygenated graphene is made.
The present invention uses NH3·H2O-NH4Cl solution replaces traditional NaOH or NH3·H2O solution prepares Fe3O4Microballoon,
Can not only effectively reduce the corrosiveness to cell disruptor, and can stabilising system pH value, make system in course of reaction
PH can be remained in 9.2~10.5, so as to effectively prevent in course of reaction because of the continuous consumption of hydroxide ion, made
The lasting reduction of architectonical alkalescence, the problem of causing product quality to decline.
Furtherly, ultrasonic cell disruptor is used in ultrasonic procedure of the present invention.
The overall process of graphite oxide loading ferroso-ferric oxide synthetic reaction of the present invention is carried out under ultrasound condition, and is adopted
With ultrasonic cell disrupte machine, reaction solution can be effectively set to enter the lamella deep of graphene oxide, so as in graphite oxide
Reacted between alkene lamella-lamella, fabricated in situ ferroso-ferric oxide, on the one hand can make ferroso-ferric oxide more uniformly, effectively
It is distributed on each lamella of graphene oxide, so as to reach the effect for assigning the more preferable magnetic of graphene oxide；The opposing party
Face, it can further expand the interlayer of graphene oxide by forming ferroso-ferric oxide microballoon between the lamella of graphene oxide
Away from, and by the electrostatic repulsion between ferroso-ferric oxide microballoon, coordinate ultrasonication, realize that graphene oxide preferably dissociates effect
Fruit, so that the interlayer of ferroso-ferric oxide insertion graphene oxide, and promote graphene oxide to be dissociated into two-dimensional slice
Structure.
Further say, the present invention is carried out using ultrasound-interval endless form, and ultrasound (beat by graphene oxide layer
Open, reaction solution enters lamella) (solution into lamella reacts to obtain ferroso-ferric oxide and born in surface of graphene oxide in-gap
Graphene oxide layer surface is loaded in, struts lamella)-ultrasonic (reaction solution further gos deep into graphene oxide layer deeper inside)-
The mode so circulated is entered in gap (ferroso-ferric oxide is formed in graphene oxide layer deeper inside, further struts lamella) ...
Row reaction, so that the interlayer of ferroso-ferric oxide insertion graphene oxide, and promote graphene oxide to be dissociated into two dimension
Lamellar structure；Meanwhile the present invention can be realized effectively to temperature of reaction system by the reasonable setting to ultrasound-interval time
Control.
Preferably, ultrasonic time can be 5~8s, and interval time can be 10~15s, so enable to ferroso-ferric oxide to insert
Enter the interlayer of graphene oxide, and promote graphene oxide to be dissociated into two-dimensional slice structure；If ultrasonic time is long or is spaced
Between it is too short, then the increase of the accessory substance that reacts, impurity in products is more, and product quality declines.
The total reaction time of ultrasound of the present invention-interval circulate operation is 40~80min, can fully cause ferroso-ferric oxide
The interlayer of graphene oxide is inserted, fabricated in situ ferroso-ferric oxide simultaneously assigns graphene oxide magnetic；If the reaction time is too short,
Reaction is incomplete, and product quality is not high.
Preferably, the present invention wraps up the ultrasonic cell disrupte machine using milipore filter.
The ultrasonic generator of ultrasonic cell disrupte machine of the present invention is placed directly within reaction solution, has common ultrasonic generator
The impact strength that can not be reached and ultrasonic effect：(1) using milipore filter parcel ultrasonic generator, ultrasonic effect is not being influenceed
Meanwhile avoid the corrosiveness of reaction solution；(2) by using NH3·H2O-NH4Cl solution realizes system pH in course of reaction
Stabilization；(3) produce heat using the concussion effect of ultrasound and improve system temperature, and by the rational allocation ultrasonic vibration time and
Interval time realizes effective control to system reaction temperature.
Furtherly, graphene oxide solution of the present invention, iron salt solutions and NH3·H2O-NH4The volume ratio of Cl solution can
For 1~2:1~2:1~2.NH3·H2O-NH4NH in Cl solution3·H2O and NH4Cl mol ratio is 2~4:1.Iron salt solutions are
The mixed solution of divalent iron salt and trivalent iron salt, wherein divalent iron salt are FeCl2Or FeSO4, trivalent iron salt FeCl3Or Fe2
(SO4)3.Preferably, the mol ratio of divalent iron salt and trivalent iron salt is 1:1~2.
Beneficial effect：Compared with prior art, remarkable advantage of the invention is：(1) NH is utilized3·H2O-NH4Cl solution pair
The stabilization of system pH, with NH3·H2O-NH4Cl solution replaces traditional NaOH or NH3·H2O, make body in course of reaction
The pH of system can be remained among OK range, so as to effectively prevent in course of reaction the product caused by the change of pH value
The problem of Quality Down, and provide an active path for the industrialized production of magnetic oxygenated graphene；(2) promoted using ultrasound
Enter graphene oxide and be dissociated into two-dimensional slice structure so that ferroso-ferric oxide inserts the interlayer of graphene oxide, fabricated in situ four
Fe 3 O simultaneously assigns graphene oxide magnetic；(3) present invention utilizes ultrasound and NH3·H2O-NH4Both Cl solution is effectively tied
Close, stabilize production technology, it is easy to operate, prepare the magnetic oxygenated graphene of superior performance.
Brief description of the drawings
Fig. 1 is the magnetic oxygenated graphene transmission electron microscope picture prepared using the inventive method；
Fig. 2 is the magnetic oxygenated graphene XRD spectra prepared using the inventive method.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail to technical scheme.
Embodiment 1
(1) graphene oxide suspension is prepared：It is placed in after 6g graphite is mixed with 3g sodium nitrate in ice-water bath, under stirring,
The 100mL98% concentrated sulfuric acids are slowly dropped into, 1h is dripped off；18g potassium permanganate is added, 18g potassium permanganate is added after reacting 6h, is continued
React 12h；Cooling, washing, ultrasound, upper suspension is taken, is concentrated into 1/4 volume；
(2) magnetic oxygenated graphene is prepared：In mass ratio 1:1:1 by graphene oxide suspension, containing FeCl2And FeCl3's
Mixed solution and NH3·H2O-NH4Cl solution mixes, and is warming up to 50 DEG C, is subsequently placed in ultrasonic cell disruptor, (ultrasound
5s/ intervals 10s repeats), 70 DEG C, overall reaction 40min (including ultrasonic time and interval time) are warming up to, is cooled down, washing,
It is lyophilized；Wherein, FeCl2And FeCl3Mol ratio is 1:2, NH3·H2O-NH4Both mol ratios are 3 in Cl:1.
Embodiment 2
(1) graphene oxide suspension is prepared：It is placed in after 4g graphite is mixed with 2g potassium nitrate in ice-water bath, under stirring,
The 90mL98% concentrated sulfuric acids are slowly dropped into, 1h is dripped off；30g hydrogen peroxide is added, 30g hydrogen peroxide is added after reacting 6h, continues to react
12h；Cooling, washing, ultrasound, upper suspension is taken, is concentrated into 1/4 volume；
(2) magnetic oxygenated graphene is prepared：In mass ratio 1:1:1 by graphene oxide suspension, containing FeCl2And FeCl3's
Mixed solution and NH3·H2O-NH4Cl solution mixes, and is warming up to 60 DEG C, is subsequently placed in ultrasonic cell disruptor, (ultrasound
6s/ intervals 12s repeats), 80 DEG C, overall reaction 60min (including ultrasonic time and interval time) are warming up to, is cooled down, washing,
It is lyophilized；Wherein, FeCl2And FeCl3Mol ratio is 1:2, NH3·H2O-NH4Cl mol ratio is 2:1.
Embodiment 3
(1) graphene oxide suspension is prepared：It is placed in after 9g graphite is mixed with 4g sodium nitrate in ice-water bath, under stirring,
The 120mL98% concentrated sulfuric acids are slowly dropped into, 1h is dripped off；24g potassium permanganate is added, 24g potassium permanganate is added after reacting 6h, is continued
React 12h；Cooling, washing, ultrasound, upper suspension is taken, is concentrated into 1/4 volume；
(2) magnetic oxygenated graphene is prepared：In mass ratio 1:1:1 by graphene oxide suspension, containing FeCl2And FeCl3's
Mixed solution and NH3·H2O-NH4Cl solution mixes, and is warming up to 70 DEG C, is subsequently placed in ultrasonic cell disruptor, (ultrasound
8s/ intervals 15s repeats), 90 DEG C, overall reaction 80min (including ultrasonic time and interval time) are warming up to, is cooled down, washing,
It is lyophilized；Wherein, FeCl2And FeCl3Mol ratio is 1:2, NH3·H2O-NH4Cl mol ratio is 4:1.
Embodiment 4
(1) graphene oxide suspension is prepared：It is placed in after 6g graphite is mixed with 3g potassium nitrate in ice-water bath, under stirring,
The 100mL98% concentrated sulfuric acids are slowly dropped into, 1h is dripped off；18g potassium permanganate is added, 18g potassium permanganate is added after reacting 6h, is continued
React 12h；Cooling, washing, ultrasound, upper suspension is taken, is concentrated into 1/4 volume；
(2) magnetic oxygenated graphene is prepared：In mass ratio 1:1:1 by graphene oxide suspension, containing FeCl2And FeCl3's
Mixed solution and NH3·H2O-NH4Cl solution mixes, and is warming up to 50 DEG C, is subsequently placed in ultrasonic cell disruptor, (ultrasound
5s/ intervals 10s repeats), 70 DEG C, overall reaction 40min (including ultrasonic time and interval time) are warming up to, is cooled down, washing,
It is lyophilized；Wherein, FeCl2And FeCl3Mol ratio is 1:2, NH3·H2O-NH4Cl mol ratio is 2.5:1.
Embodiment 5
(1) graphene oxide suspension is prepared：It is placed in after 4g graphite is mixed with 2g sodium nitrate in ice-water bath, under stirring,
The 70mL98% concentrated sulfuric acids are slowly dropped into, 1h is dripped off；12g potassium permanganate is added, 12g potassium permanganate is added after reacting 6h, is continued
React 12h；Cooling, washing, ultrasound, upper suspension is taken, is concentrated into 1/4 volume；
(2) magnetic oxygenated graphene is prepared：In mass ratio 1:1:1 by graphene oxide suspension, containing FeCl2And FeCl3's
Mixed solution and NH3·H2O-NH4Cl solution mixes, and is warming up to 50 DEG C, is subsequently placed in ultrasonic cell disruptor, (ultrasound
5s/ intervals 10s repeats), 80 DEG C, overall reaction 40min (including ultrasonic time and interval time) are warming up to, is cooled down, washing,
It is lyophilized；Wherein, FeCl2And FeCl3Mol ratio is 1:2, NH3·H2O-NH4Cl mol ratio is 3.5:1.
Embodiment 6
(1) graphene oxide suspension is prepared：It is placed in after 9g graphite is mixed with 4g sodium nitrate in ice-water bath, under stirring,
The 120mL98% concentrated sulfuric acids are slowly dropped into, 1h is dripped off；24g potassium permanganate is added, 24g potassium permanganate is added after reacting 6h, is continued
React 12h；Cooling, washing, ultrasound, upper suspension is taken, is concentrated into 1/4 volume；
(2) magnetic oxygenated graphene is prepared：In mass ratio 1:1:1 by graphene oxide suspension, containing FeCl2And FeCl3's
Mixed solution and NH3·H2O-NH4Cl solution mixes, and is warming up to 50 DEG C, is subsequently placed in ultrasonic cell disruptor, (ultrasound
5s/ intervals 10s repeats), 80 DEG C, overall reaction 40min (including ultrasonic time and interval time) are warming up to, is cooled down, washing,
It is lyophilized；Wherein, FeCl2And FeCl3Mol ratio is 1:2, NH3·H2O-NH4Cl mol ratio is 3:1.
Embodiment 7
(1) graphene oxide suspension is prepared：It is placed in after 6g graphite is mixed with 3g potassium nitrate in ice-water bath, under stirring,
The 100mL98% concentrated sulfuric acids are slowly dropped into, 1h is dripped off；18g potassium permanganate is added, 18g potassium permanganate is added after reacting 6h, is continued
React 12h；Cooling, washing, ultrasound, upper suspension is taken, is concentrated into 1/4 volume；
(2) magnetic oxygenated graphene is prepared：In mass ratio 1:1:1 by graphene oxide suspension, containing FeSO4And Fe2
(SO4)3Mixed solution and NH3·H2O-NH4Cl solution mixes, and is warming up to 50 DEG C, is subsequently placed in ultrasonic cell disruptor,
(ultrasonic 5s/ intervals 10s repeats), 80 DEG C, overall reaction 40min (including ultrasonic time and interval time) are warming up to, cooled down,
Washing, freeze；Wherein, FeSO4And Fe2(SO4)3Mol ratio is 1:1, NH3·H2O-NH4Cl mol ratio is 2.5:1.
Embodiment 8
(1) graphene oxide suspension is prepared：It is placed in after 4g graphite is mixed with 2g sodium nitrate in ice-water bath, under stirring,
The 70mL98% concentrated sulfuric acids are slowly dropped into, 1h is dripped off；12g potassium permanganate is added, 12g potassium permanganate is added after reacting 6h, is continued
React 12h；Cooling, washing, ultrasound, upper suspension is taken, is concentrated into 1/4 volume；
(2) magnetic oxygenated graphene is prepared：In mass ratio 1:1:1 by graphene oxide suspension, containing FeSO4And Fe2
(SO4)3Mixed solution and NH3·H2O-NH4Cl solution mixes, and is warming up to 50 DEG C, is subsequently placed in ultrasonic cell disruptor,
(ultrasonic 5s/ intervals 10s repeats), 80 DEG C, overall reaction 40min (including ultrasonic time and interval time) are warming up to, cooled down,
Washing, freeze；Wherein, FeSO4And Fe2(SO4)3Mol ratio is 1:1, NH3·H2O-NH4Cl mol ratio is 3.5:1.
Embodiment 9
(1) graphene oxide suspension is prepared：It is placed in after 9g graphite is mixed with 4g sodium nitrate in ice-water bath, under stirring,
The 120mL98% concentrated sulfuric acids are slowly dropped into, 1h is dripped off；24g potassium permanganate is added, 24g potassium permanganate is added after reacting 6h, is continued
React 12h；Cooling, washing, ultrasound, upper suspension is taken, is concentrated into 1/4 volume；
(2) magnetic oxygenated graphene is prepared：In mass ratio 1:1:1 by graphene oxide suspension, containing FeSO4And Fe2
(SO4)3Mixed solution and NH3·H2O-NH4Cl solution mixes, and is warming up to 50 DEG C, is subsequently placed in ultrasonic cell disruptor,
(ultrasonic 5s/ intervals 10s repeats), 80 DEG C, overall reaction 40min (including ultrasonic time and interval time) are warming up to, cooled down,
Washing, freeze；Wherein, FeSO4And Fe2(SO4)3Mol ratio is 1:1, NH3·H2O-NH4Cl mol ratio is 3:1.
Magnetic oxygenated graphene obtained above is detected, the result of acquisition is as shown in Figures 1 and 2.Can by Fig. 1
See, through peroxidating and magnetization, magnetic oxygenated graphene has formd two-dimensional slice structure；From Figure 2 it can be seen that graphene oxide
It is most of to peel off into lamellar structure, and successfully load is on graphene oxide magnetic ferroferric oxide microballoon.
Comparative example 1
Basic step is same as Example 1, and difference is graphene oxide solution, iron salt solutions and NH3·H2O-
NH4After the mixing of Cl solution, it is placed under ultrasound condition directly reaction and is warming up to 70 DEG C, rather than be first warming up to certain temperature, specifically
It is as follows：
(1) graphene oxide suspension is prepared：It is placed in after 6g graphite is mixed with 3g sodium nitrate in ice-water bath, under stirring,
The 100mL98% concentrated sulfuric acids are slowly dropped into, 1h is dripped off；18g potassium permanganate is added, 18g potassium permanganate is added after reacting 6h, is continued
React 12h；Cooling, washing, ultrasound, upper suspension is taken, is concentrated into 1/4 volume；
(2) magnetic oxygenated graphene is prepared：In mass ratio 1:1:1 by graphene oxide suspension, containing FeCl2And FeCl3's
Mixed solution and NH3·H2O-NH4Cl solution is mixed, and the solution is placed in ultrasonic cell disrupte machine into (ultrasonic 5s/ intervals 10s weights
It is multiple to carry out), 70 DEG C, overall reaction 40min (including ultrasonic time and interval time) are directly warming up to, is cooled down, is washed, is freezed；Its
In, FeCl2And FeCl3Mol ratio is 1:2, NH3·H2O-NH4Cl mol ratio is 3:1.
Magnetic oxygenated graphene prepared by comparative example 1 is detected, it is found that magnetic oxygenated graphene can only a part of shape
Into two-dimensional slice structure, magnetic ferroferric oxide micro-ball load is that the situation on graphene oxide is few.
As can be seen here, Segmented heating method of the invention can promote formation and the magnetic ferroferric oxide of two-dimensional slice structure
The load of microballoon.
Claims (10)
1. one kind utilizes NH3·H2O-NH4Cl solution prepares the method for magnetic oxygenated graphene, including to prepare graphene oxide molten
Liquid；It is characterized in that：By graphene oxide solution, iron salt solutions and NH3·H2O-NH4Cl solution mixes, and is warming up to 50~70
DEG C, 70~90 DEG C are warming up under subsequent ultrasound condition, magnetic oxygenated graphene is made.
2. the method for magnetic oxygenated graphene is prepared according to claim 1, it is characterised in that：Used in the ultrasonic procedure
Ultrasonic cell disruptor.
3. the method for magnetic oxygenated graphene is prepared according to claim 1, it is characterised in that：The ultrasound condition is super
Sound-interval circulate operation.
4. the method for magnetic oxygenated graphene is prepared according to claim 3, it is characterised in that：The ultrasonic time be 5~
8s, interval time are 10~15s.
5. the method for magnetic oxygenated graphene is prepared according to claim 3, it is characterised in that：The ultrasound-interval circulation
The total reaction time of operation is 40~80min.
6. the method for magnetic oxygenated graphene is prepared according to claim 1, it is characterised in that：The NH3·H2O-NH4Cl
NH in solution3·H2O and NH4Cl mol ratio is 2~4:1.
7. the method for magnetic oxygenated graphene is prepared according to claim 1, it is characterised in that：The iron salt solutions are divalence
The mixed solution of molysite and trivalent iron salt, wherein, divalent iron salt FeCl2Or FeSO4, trivalent iron salt FeCl3Or Fe2
(SO4)3。
8. the method for magnetic oxygenated graphene is prepared according to claim 7, it is characterised in that：The divalent iron salt and trivalent
The mol ratio of molysite is 1:1~2.
9. the method for magnetic oxygenated graphene is prepared according to claim 2, it is characterised in that：Described in being wrapped up using milipore filter
Ultrasonic cell disruptor.
10. the method for magnetic oxygenated graphene is prepared according to claim 1, it is characterised in that：The graphene oxide is molten
Liquid, iron salt solutions and NH3·H2O-NH4The volume ratio of Cl solution is 1~2:1~2:1~2.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103305185A (en) * | 2013-06-08 | 2013-09-18 | 西北工业大学 | Method for preparing reduced-oxidized graphene/Fe3O4/Ag nano composite wave-absorbing material |
| CN104923161A (en) * | 2015-07-09 | 2015-09-23 | 山东大学 | Preparation method of magnetic graphene oxide and application thereof |
| CN106475100A (en) * | 2016-08-30 | 2017-03-08 | 江苏金茂源生物化工有限责任公司 | The preparation method and application of Graphene/ferroferric oxide magnetic nano composite |
-
2017
- 2017-10-20 CN CN201710997017.2A patent/CN107739028A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103305185A (en) * | 2013-06-08 | 2013-09-18 | 西北工业大学 | Method for preparing reduced-oxidized graphene/Fe3O4/Ag nano composite wave-absorbing material |
| CN104923161A (en) * | 2015-07-09 | 2015-09-23 | 山东大学 | Preparation method of magnetic graphene oxide and application thereof |
| CN106475100A (en) * | 2016-08-30 | 2017-03-08 | 江苏金茂源生物化工有限责任公司 | The preparation method and application of Graphene/ferroferric oxide magnetic nano composite |
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| Title |
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| 王洪荣: "《饲料检测与分析实验技术》", 30 June 2014 * |
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Application publication date: 20180227 |