CN107416817B - The grapheme modified preparation method of hematein - Google Patents
The grapheme modified preparation method of hematein Download PDFInfo
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- CN107416817B CN107416817B CN201710792253.0A CN201710792253A CN107416817B CN 107416817 B CN107416817 B CN 107416817B CN 201710792253 A CN201710792253 A CN 201710792253A CN 107416817 B CN107416817 B CN 107416817B
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- graphene
- hematein
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- hematoxylin
- graphene oxide
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- HLUCICHZHWJHLL-UHFFFAOYSA-N hematein Chemical compound C12=CC=C(O)C(O)=C2OCC2(O)C1=C1C=C(O)C(=O)C=C1C2 HLUCICHZHWJHLL-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 67
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 63
- WZUVPPKBWHMQCE-UHFFFAOYSA-N Haematoxylin Chemical compound C12=CC(O)=C(O)C=C2CC2(O)C1C1=CC=C(O)C(O)=C1OC2 WZUVPPKBWHMQCE-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000012670 alkaline solution Substances 0.000 claims abstract description 13
- 239000006185 dispersion Substances 0.000 claims abstract description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 239000000243 solution Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 238000005034 decoration Methods 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 abstract description 15
- 230000004048 modification Effects 0.000 abstract description 14
- 238000012986 modification Methods 0.000 abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000003381 stabilizer Substances 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 7
- 239000008188 pellet Substances 0.000 description 6
- 229910021642 ultra pure water Inorganic materials 0.000 description 6
- 239000012498 ultrapure water Substances 0.000 description 6
- 239000003643 water by type Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 2
- 238000004847 absorption spectroscopy Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- WZUVPPKBWHMQCE-XJKSGUPXSA-N (+)-haematoxylin Chemical compound C12=CC(O)=C(O)C=C2C[C@]2(O)[C@H]1C1=CC=C(O)C(O)=C1OC2 WZUVPPKBWHMQCE-XJKSGUPXSA-N 0.000 description 1
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
- -1 Graphite alkene Chemical class 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005285 chemical preparation method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/20—Graphene characterized by its properties
- C01B2204/22—Electronic properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/84—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by UV- or VIS- data
-
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention relates to a kind of preparation methods that hematein is grapheme modified, it is to be added in alkaline solution to be uniformly mixed in graphene oxide dispersion, then hematoxylin is added, is sufficiently reacted at 20-100 DEG C, is centrifuged, washs to obtain the graphene of hematein modification.Using hematoxylin as reducing agent, graphene still can not need the addition of other stabilizers with stable dispersion in aqueous solution, it is shown that water-soluble well, preparation method has the advantages that simple, efficient, inexpensive and environmental-friendly.Prepared graphene can be used to develop supercapacitor and graphene film.
Description
Technical field
The present invention relates to a kind of preparation method of non-covalent functionalization graphene, specifically a kind of hematein modification
The preparation method of graphene.
Background technique
Excellent electricity, calorifics and mechanical property possessed by graphene, make graphene in NEW TYPE OF COMPOSITE energy storage material, the sun
Energy battery and supercapacitor etc. have potential prospect, are expected to apply to integrated circuit, transparence display touch screen, transparent electricity
The fields such as pole and electronic product radiating piece.And the preparation of all kinds of graphene composite materials has become restriction graphene in each field
One key factor of important application.Currently, main preparation method includes physics and chemical two major classes, wherein physical mechanical is shelled
Single crystal graphene film can be obtained from method, but size is not easy to control；The graphene of vapour deposition process preparation has good
Crystalline structure, but preparation method is too harsh, is unfavorable for large scale preparation；And chemical preparation method has yield high, method is simple,
It is at low cost and the advantages of can be mass-produced, it has been increasingly becoming the common method of graphene preparation.However, preparing graphene
During, it usually needs graphene oxide is reduced to by reduced graphene using suitable reducing agent.It has been reported that reduction
Agent such as hydrazine hydrate, NaBH4, p-phenylenediamine, sulfur-containing compound etc. all show extremely strong toxicity, be easy to happen explosion, limit
The large-scale production of graphene.Further, since graphene oxide oxygen-containing group after electronation largely reduces, it will usually cause
Serious agglomeration occurs for graphene, is also unfavorable for further applying, at present it has been reported that restoring method multi-pass cross plus
Enter surfactant, polymer, large biological molecule or carry out surface covalent modification to avoid the generation of this phenomenon, these are additional
The use of biochemical reagents also causes serious harm to environment.Therefore, exploitation is simple, efficient, inexpensive and environmental-friendly
Method and reducing agent be still graphene preparation key technology.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of preparation methods that hematein is grapheme modified.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of hematein is grapheme modified
Alkaline solution is added in preparation method in graphene oxide dispersion, is uniformly mixed, hematoxylin is then added, at 20-100 DEG C
Lower sufficiently reaction is centrifuged, washs to obtain the graphene of hematein modification.
Further, it adds graphene oxide into secondary distilled water, ultrasound keeps graphene oxide evenly dispersed, obtains
The graphene oxide dispersion.
Further, the alkaline solution is selected from one of NaOH solution and ammonia solution.
Further, the concentration of the alkaline solution is 0.1 ~ 10 mol/L.
Further, the volume ratio of alkaline solution and graphene oxide dispersion is 1:(10-200).
Further, the mass ratio of hematoxylin and graphene oxide is (1-50): 1.
Further, it is sufficiently reacted at 20-90 DEG C after hematoxylin being added.
Further, sufficiently reaction at room temperature is added after hematoxylin.
For the present invention using hematoxylin as reducing agent, graphene still can not need other with stable dispersion in aqueous solution
The addition of stabilizer, it is shown that water-soluble well.Preparation method has simple, efficient, inexpensive and environmental-friendly
Advantage.Prepared graphene can be used to develop supercapacitor and graphene film.
Detailed description of the invention
Fig. 1 is the ultraviolet-visible absorption spectroscopy figure of 1 product of embodiment.
Fig. 2 is the transmission electron microscope photo of 1 product of embodiment.
Specific embodiment
A kind of typical embodiment of the present invention provides hematein grapheme modified preparation method, in graphite oxide
It is added in alkaline solution and is uniformly mixed in alkene dispersion liquid, hematoxylin is then added, is sufficiently reacted at 20-100 DEG C, be centrifuged,
Washing obtains the graphene of hematein modification.
Hematoxylin, also known as haematoxylin are a kind of colourless or light lark powder, it is soluble in ethyl alcohol, ethylene glycol and glycerol,
It is slightly soluble in water.Nucleus dyestuff is usually being used as after peroxidating and mordant dyeing, there has been no relevant reports for grapheme modified.
There is no any surfactant, polymer, large biological molecule or progress surface covalent modification, warp
The reducing agents such as hydrazine hydrate, which restore resulting graphene, will appear serious agglomeration.Any surface-active is being added without in present embodiment
In the case where agent, polymer, large biological molecule or progress surface covalent modification, using hematoxylin as reducing agent, obtained oxygen
The graphene for changing hematoxylin modification still can be with stable dispersion in aqueous solution, and there is no significantly rolling into a ball placing after two weeks
It is poly-, good water solubility is not only shown, and preparation process is environmentally protective, is conducive to the batch production of graphene, also reduces
Environmental pollution.
In addition, the graphene of freshly prepd hematein modification can also be dispersed in dimethylformamide, dimethyl Asia
In sulfone, acetonitrile and ethyl alcohol, the dissolubility that has shown.
In specific preparation process, while graphene oxide is reduced, hematoxylin is also oxidized to hematein, point
A phenyl ring in son is converted to quinoid phenyl ring, increases pi bond delocalization characteristic, this is not only contributed to and plane graphene-structured
Pi-pi accumulation is formed, the interlamellar spacing and dissolubility of graphene are effectively improved, while making the graphite of hematein modification obtained
Alkene is provided with the electronic media effect of dyestuff, may obtain better electron transmission performance, be expected to be used for electro-catalysis field.
It is to add graphene oxide into secondary distilled water, ultrasound makes oxygen in a kind of opposite specific embodiment
Graphite alkene is evenly dispersed, obtains the graphene oxide dispersion.
In a preferred embodiment, the alkaline solution is selected from one of NaOH solution and ammonia solution.
In a preferred embodiment, the concentration of the alkaline solution is 0.1 ~ 10 mol/L.
In a preferred embodiment, the volume ratio of alkaline solution and graphene oxide dispersion is 1:(10-200).?
Within the scope of this, the volume ratio may further be 1:(10-20), 1:(10-50), 1:(10-80), 1:(10-100),
1:(10-120), 1:(10-150).
In a preferred embodiment, the mass ratio of hematoxylin and graphene oxide is (1-50): 1, the mass ratio
It may further be (1-40): 1, (1-30): 1, (1-20): 1, (1-10): 1, (1-5): 1, (1-
2): 1.
In a preferred embodiment, it is sufficiently reacted at 20-90 DEG C after hematoxylin being added.
In a preferred embodiment, sufficiently reaction at room temperature is added after hematoxylin, and reaction condition is mild, in the present invention
The room temperature is defined as 25 ± 5 DEG C.
It elaborates with the following Examples to claimed technical solution and its technical effect.
Embodiment 1
Weigh the dry GO(graphene oxide of 50 mg) it is added in 100 mL ultrapure waters ultrasonic disperse 2 hours, it obtains equal
One concentration is the GO aqueous solution of 0.5 mg/mL.Take 30 mL ultrapure waters in 100 mL reaction flasks, 30 mL concentration, which are added, is
The GO aqueous solution of 0.5 mg/mL, stirring are allowed to uniformly mixed, then sequentially add 1 mL, 1 mol/L NaOH solution and 60
Mg hematoxylin is stirred to react the graphene solution that 2 hours hematein to get black are modified at room temperature.By above-mentioned solution
It is centrifuged (10000 rpm/s), washing three times, the gained pellet frozen dry two days graphenes to get hematein modification, weight
Newly be dispersed in water hematein modification graphene aqueous solution.Fig. 1 shows ultraviolet-visible absorption spectroscopy figure, 230 nm
Locate the disappearance at n- π * transition absorption peak at the * transition absorption peak π-π and 300 nm, graphene characteristic absorption peak goes out at 257 nm
It is existing, illustrate that graphene oxide has been fully converted to graphene.Fig. 2 shows corresponding transmission electron microscope photo, shows apparent
Single layer structure.
Embodiment 2
It weighs the dry GO of 25 mg to be added in 25 mL ultrapure waters ultrasonic disperse 2 hours, obtaining uniform concentration is 1
The GO aqueous solution of mg/mL.It takes 10 mL ultrapure waters in 100 mL reaction flasks, the GO water that 25 mL concentration are 1 mg/mL is added
Solution, stirring are allowed to uniformly mixed, then sequentially add 2 mL, 1 mol/L NaOH solution and 150 mg hematoxylins, at 60 DEG C
It is stirred to react the graphene solution that 1 hour hematein to get black is modified.Above-mentioned solution is centrifuged (10000 rpm/
S), wash three times, the dry two days graphenes modified to get dry hematein of gained pellet frozen.Again it is dispersed in
The graphene aqueous solution that gained obtains hematein modification in water can be stabilized January or more.
Embodiment 3
It weighs the dry GO of 50 mg to be added in 25 mL ultrapure waters ultrasonic disperse 3 hours, obtaining uniform concentration is 2
The GO aqueous solution of mg/mL.It takes 20 mL ultrapure waters in 100 mL reaction flasks, the GO water that 20 mL concentration are 2 mg/mL is added
Solution, stirring are allowed to uniformly mixed, then sequentially add 3 mL, 1 mol/L NaOH solution and 200 mg hematoxylins, at room temperature
It is stirred to react the graphene solution that 2 hours hematein to get black are modified.Above-mentioned solution is centrifuged (10000 rpm/
S), wash three times, the dry two days graphenes modified to get dry hematein of gained pellet frozen.
Embodiment 4
It weighs the dry GO of 50 mg and is added to ultrasonic disperse 3 hours in 50mL ultrapure water, obtaining uniform concentration is 1mg/
The GO aqueous solution of mL.It takes 10mL ultrapure water in 100 mL reaction flasks, the GO aqueous solution that 10 mL concentration are 1mg/mL is added,
Stirring is allowed to uniformly mixed, then sequentially adds 2mL 0.1mol/L NaOH solution and 10 mg hematoxylins, stirs at 20 DEG C anti-
The graphene solution for answering 2 hours hematein to get black to modify.Above-mentioned solution is centrifuged (10000 rpm/s), washing
Three times, the dry two days graphenes modified to get dry hematein of gained pellet frozen.
Embodiment 5
It weighs the dry GO of 50 mg and is added to ultrasonic disperse 3 hours in 500mL ultrapure water, obtaining uniform concentration is
The GO aqueous solution of 0.1mg/mL.Take 100mL ultrapure water in 500 mL reaction flasks, it is 0.1mg/mL's that 100 mL concentration, which are added,
GO aqueous solution, stirring are allowed to uniformly mixed, then sequentially add 1mL 10mol/L NaOH solution and 500mg hematoxylin, and 100 DEG C
Under be stirred to react half an hour to get black hematein modify graphene solution.Above-mentioned solution is centrifuged (10000
Rpm/s), wash three times, the dry two days graphenes modified to get dry hematein of gained pellet frozen.
Embodiment 6
It weighs the dry GO of 50mg and is added to ultrasonic disperse 3 hours in 100mL ultrapure water, obtaining uniform concentration is
The GO aqueous solution of 0.5mg/mL.It takes 80mL ultrapure water in 200 mL reaction flasks, the GO that 20 mL concentration are 0.5mg/mL is added
Aqueous solution, stirring are allowed to uniformly mixed, then sequentially add 1mL 5mol/L NaOH solution and 200 mg hematoxylins, at 90 DEG C
It is stirred to react the graphene solution that 1 hour hematein to get black is modified.Above-mentioned solution is centrifuged (10000 rpm/
S), wash three times, the dry two days graphenes modified to get dry hematein of gained pellet frozen.
The scope of protection of present invention is not limited to the above specific embodiment, to those skilled in the art, this
Invention can there are many deformation and change, it is all design of the invention within principle it is made it is any modification, improve and be equal
Replacement should be all included within protection scope of the present invention.
Claims (7)
1. a kind of preparation method that hematein is grapheme modified, it is characterised in that: be added in graphene oxide dispersion
Alkaline solution is uniformly mixed, and hematoxylin is then added, sufficiently reacts at 20-100 DEG C, is centrifuged, washs to obtain oxidation bush
The graphene of refine decorations；The alkaline solution is selected from one of NaOH solution and ammonia solution.
2. according to the method described in claim 1, it is characterized by: adding graphene oxide into secondary distilled water, ultrasound
Keep graphene oxide evenly dispersed, obtains the graphene oxide dispersion.
3. according to the method described in claim 2, it is characterized by: the concentration of the alkaline solution is 0.1 ~ 10 mol/L.
4. according to the method described in claim 3, it is characterized by: the volume ratio of alkaline solution and graphene oxide dispersion is
1:(10-200).
5. the method according to claim 3 or 4, it is characterised in that: the mass ratio of hematoxylin and graphene oxide is (1-
50): 1.
6. according to the method described in claim 1, it is characterized by: sufficiently being reacted at 20-90 DEG C after hematoxylin is added.
7. according to the method described in claim 1, it is characterized by: sufficiently reaction at room temperature is added after hematoxylin.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215727A (en) * | 2014-09-25 | 2014-12-17 | 深圳粤网节能技术服务有限公司 | Graphene material based disperse and quick solid-phase extraction method |
| CN104977194A (en) * | 2014-04-10 | 2015-10-14 | 北京雷根生物技术有限公司 | Method of accelerating sample treatment with addition of graphene |
| CN106290513A (en) * | 2016-09-10 | 2017-01-04 | 上海大学 | Utilize the method that Graphene is combined the glass-carbon electrode mensuration ciprofloxacin that hematoxylin is modified |
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2017
- 2017-09-05 CN CN201710792253.0A patent/CN107416817B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977194A (en) * | 2014-04-10 | 2015-10-14 | 北京雷根生物技术有限公司 | Method of accelerating sample treatment with addition of graphene |
| CN104215727A (en) * | 2014-09-25 | 2014-12-17 | 深圳粤网节能技术服务有限公司 | Graphene material based disperse and quick solid-phase extraction method |
| CN106290513A (en) * | 2016-09-10 | 2017-01-04 | 上海大学 | Utilize the method that Graphene is combined the glass-carbon electrode mensuration ciprofloxacin that hematoxylin is modified |
Non-Patent Citations (1)
| Title |
|---|
| A low detection limit penicillin biosensor based on single graphene nanosheets preadsorbed with hematein/ionic liquids/penicillinase;Yueting Wu et al.;《Materials Science and Engineering C》;20140217;第38卷;第92-99页 * |
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