CN106621962B - Disperse the method for carbon onion - Google Patents
Disperse the method for carbon onion Download PDFInfo
- Publication number
- CN106621962B CN106621962B CN201710003052.8A CN201710003052A CN106621962B CN 106621962 B CN106621962 B CN 106621962B CN 201710003052 A CN201710003052 A CN 201710003052A CN 106621962 B CN106621962 B CN 106621962B
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- CN
- China
- Prior art keywords
- dispersion liquid
- carbon onion
- onion
- dispersion
- concentration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 241000234282 Allium Species 0.000 title claims abstract description 43
- 235000002732 Allium cepa var. cepa Nutrition 0.000 title claims abstract description 43
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000006185 dispersion Substances 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 239000012498 ultrapure water Substances 0.000 claims abstract description 7
- 229910021642 ultra pure water Inorganic materials 0.000 claims abstract description 6
- 238000005119 centrifugation Methods 0.000 claims abstract description 4
- 239000006228 supernatant Substances 0.000 claims abstract description 4
- 230000003068 static effect Effects 0.000 claims abstract description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 6
- 238000002604 ultrasonography Methods 0.000 claims description 6
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 abstract description 6
- 239000010439 graphite Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
Abstract
The invention discloses a kind of methods mild and high efficiency dispersion carbon onion in water, include the following steps: (1), graphite oxide is configured to 0.5mgmL‑1GO dispersion liquid, ultrasonic power be 100W under the conditions of ultrasonic disperse 1h, be centrifuged at revolving speed 8000rpm, take centrifugation after supernatant obtain GO dispersion liquid；The GO dispersion liquid is diluted with ultrapure water, it is spare to be prepared into the GO dispersion liquid that concentration is 0.2mg/mL ~ 0.01mg/mL；(2), C onion, and ultrasonic disperse 1h under the conditions of ultrasonic power is 100W are added in the GO dispersion liquid of Xiang Shangshu concentration, it is static, obtain stable carbon onion dispersion liquid.Operation of the present invention method is simple, and the dispersibility of carbon onion processed by the invention significantly improves, for carbon onion composite material prepare and in terms of application create condition.
Description
Technical field
The present invention relates to carbon onion dispersibility technical field is improved, specially a kind of mild and high efficiency dispersion carbon onion side
Method.
Background technique
Carbon nanomaterial is research most extensively and using most nano materials, since they are with many excellent and only
Special optics, electricity and chemical property, hydrogen storage, sensing, it is super electric and in terms of all show and be widely applied before
Scape opens new road to synthesize the electronic component of new carbon nano-composite material and micromation, has also therefore attracted the world
The extensive concern of upper numerous researchers, becomes the forward position focus of research.Carbon onion has superior mechanical property, big ratio
Surface, high stability and strong electric conductivity and become research hotspot all the time.
However, carbon onion dispersibility poor in water or organic solvent limit its it is further apply, therefore effectively
The dispersibility for improving carbon onion becomes a problem, this is also exactly the problem of present invention is to be solved.
Summary of the invention
The present invention proposes to further improve the dispersibility of carbon onion and utilizes graphite oxide (GO) at room temperature
Method to disperse carbon onion.
A method of dispersion carbon onion includes the following steps:
(1), graphite oxide is configured to 0.5mgmL-1GO dispersion liquid, ultrasonic power be 100W under the conditions of ultrasound
Disperse 1h, be centrifuged at revolving speed 8000rpm, the supernatant after taking centrifugation obtains GO dispersion liquid；With ultrapure water by the GO dispersion liquid
It is spare to be prepared into the GO dispersion liquid that concentration is 0.2mg/mL ~ 0.01mg/mL for dilution；
(2), C onion, and the ultrasound point under the conditions of ultrasonic power is 100W are added in the GO dispersion liquid of Xiang Shangshu concentration
1h is dissipated, it is static, obtain stable carbon onion dispersion liquid.
Preferably, in step (1), graphite oxide is prepared using Hummer method.
Preferably, GO dispersion liquid concentration is 0.1mg/mL ~ 0.01mg/mL in step (1).
It is further preferred that GO dispersion liquid concentration is 0.1mg/mL in step (1).
This process employs the π-π interactions between the hydrophobicity of GO and GO and carbon onion.It is living with common surface
Property agent compare, this method is relatively mild, green and key are that GO is introduced into so that in the dispersion process of carbon onion and being not introduced into
Non- carbonizable substance has wide prospect in the further application aspect of carbon onion.
Operation of the present invention method is simple, and the dispersibility of carbon onion processed by the invention in water, which obtains, significantly to be mentioned
Height is really applied to composite material and electrode material etc. for carbon onion and creates condition, and has preferable application and popularization value.
Detailed description of the invention
Fig. 1 shows carbon onion in the present invention in water (a) and concentration be 0.1mg/mL graphite oxide dispersion (b) in
TEM figure after dispersing ultrasound 1h.
Fig. 2 indicate 5 bottles be respectively 10 mg carbon onions 0.2mg/mL GO dispersion liquid (a), high purity water (b),
In 0.1mg/mL GO dispersion liquid (c), 0.05mg/mL GO dispersion liquid (d) and 0.01mg/mL GO dispersion liquid (e) after ultrasound 1h
And standing state diagram in 8 hours at room temperature.
Specific embodiment
A specific embodiment of the invention is further illustrated below.
A method of mild and high efficiency dispersion carbon onion in water includes the following steps:
1, the graphite oxide prepared using Hummer method is configured to 0.5mgmL-1GO dispersion liquid, in ultrasonic power
For ultrasonic disperse 1h under the conditions of 100W, it is centrifuged 5min at revolving speed 8000rpm, the supernatant after taking centrifugation obtains the dispersion of GO
Liquid.The GO dispersion liquid is diluted with ultrapure water, being prepared into 5mL concentration respectively is respectively 0.2mg/mL, 0.1mg/mL, 0.05mg/
The GO dispersion liquid of mL and 0.01mg/mL is spare.
2, Xiang Shangshu volume is the GO point that 5.0 mL concentration are respectively 0.1mg/mL, 0.05mg/mL and 0.01mg/mL
The C onion of 10.0mg, and ultrasonic disperse 1h under the conditions of ultrasonic power is 100W are separately added into dispersion liquid.
It was found that carbon onion obtains significantly in the GO dispersion liquid of 0.1mg/mL, 0.05mg/mL and 0.01mg/mL
Dispersion effect, almost without reunion and lower layer, it is seen that dispersibility of the carbon onion in GO dispersion liquid is significantly improved.Attached drawing
2 be that ultrasound is after one hour in the GO aqueous solution of various concentration and 8 hours dispersion results of standing, experiment discovery carbon are foreign for carbon onion
Bottle bottom of the green onion in the GO dispersion liquid of 0.05mg/mL and 0.01mg/mL has some subtle precipitatings；And in 0.1mg/mL
GO in almost without lower layer and reunion, it is seen that carbon onion obtains more stable and high in the GO dispersion liquid of 0.1mg/mL
The dispersion of effect.
The present embodiment method makes full use of stronger π-π interaction between graphene oxide (GO) and carbon onion, will not
The dispersion of carbon onion is used for the graphene oxide solution (0.1mg/mL, 0.05mg/mL and 0.01mg/mL) of concentration, to identical
Dispersibility of the carbon onion of quality in the graphene oxide solution of various concentration compares and optimizes, and finally obtains carbon ocean
Green onion obtains more efficient and stable dispersion in the graphene oxide solution that concentration is 0.1mg/mL.
Operation of the present invention method is simple, and the dispersibility of carbon onion processed by the invention significantly improves, and is carbon onion multiple
Condensation material preparation and the application of electrochemical sensing etc. create condition.
Above embodiment is merely to illustrate the contents of the present invention, but this is not a limitation of the present invention, this field
Related technical personnel can also make corresponding adjustment and modification, therefore all without departing from the scope of the invention
The technical solution that the mode of equivalent replacement or equivalent variations is formed all belongs to the scope of protection of the present invention.
Claims (4)
1. a kind of method for dispersing carbon onion, characterized by the following steps:
(1), graphene oxide is configured to 0.5mgmL-1GO dispersion liquid, ultrasonic power be 100W under the conditions of ultrasound point
1h is dissipated, is centrifuged at revolving speed 8000rpm, the supernatant after taking centrifugation obtains GO dispersion liquid；It is with ultrapure water that the GO dispersion liquid is dilute
It releases, it is spare to be prepared into the GO dispersion liquid that concentration is 0.2mg/mL ~ 0.01mg/mL；
(2), C onion, and ultrasonic disperse 1h under the conditions of ultrasonic power is 100W are added in the GO dispersion liquid of Xiang Shangshu concentration,
It is static, obtain stable carbon onion dispersion liquid.
2. the method for dispersion carbon onion according to claim 1, it is characterised in that: in step (1), graphene oxide is utilized
The preparation of Hummer method.
3. the method for dispersion carbon onion according to claim 1 or 2, it is characterised in that:, will with ultrapure water in step (1)
It is spare to be prepared into the GO dispersion liquid that concentration is 0.1mg/mL ~ 0.01mg/mL for GO dispersion liquid dilution.
4. the method for dispersion carbon onion according to claim 3, it is characterised in that: in step (1), with ultrapure water by the GO
It is spare to be prepared into the GO dispersion liquid that concentration is 0.1mg/mL for dispersion liquid dilution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003052.8A CN106621962B (en) | 2017-01-04 | 2017-01-04 | Disperse the method for carbon onion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003052.8A CN106621962B (en) | 2017-01-04 | 2017-01-04 | Disperse the method for carbon onion |
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| Publication Number | Publication Date |
|---|---|
| CN106621962A CN106621962A (en) | 2017-05-10 |
| CN106621962B true CN106621962B (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710003052.8A Expired - Fee Related CN106621962B (en) | 2017-01-04 | 2017-01-04 | Disperse the method for carbon onion |
Country Status (1)
| Country | Link |
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| CN (1) | CN106621962B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824031A (en) * | 2018-12-12 | 2019-05-31 | 谢春艳 | A kind of preparation of different-grain diameter carbon nano-onions and multi-stage separation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528663A (en) * | 2003-10-10 | 2004-09-15 | 太原理工大学 | Method for preparing onion-like fullerene by CVD |
| CN1565964A (en) * | 2004-04-29 | 2005-01-19 | 太原理工大学 | Onion shaped fullerene purification process |
| CN105217616A (en) * | 2015-10-20 | 2016-01-06 | 天津大学 | Porous graphene load carbon nano-onions three-dimensional composite material preparation method |
| CN105945277A (en) * | 2016-05-17 | 2016-09-21 | 中国工程物理研究院激光聚变研究中心 | Onion-shaped fullerene clad metal palladium core shell structure nano-particle and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013500922A (en) * | 2009-07-31 | 2013-01-10 | マサチューセッツ インスティテュート オブ テクノロジー | Systems and methods for the formation of carbon-based nanostructures |
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2017
- 2017-01-04 CN CN201710003052.8A patent/CN106621962B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528663A (en) * | 2003-10-10 | 2004-09-15 | 太原理工大学 | Method for preparing onion-like fullerene by CVD |
| CN1565964A (en) * | 2004-04-29 | 2005-01-19 | 太原理工大学 | Onion shaped fullerene purification process |
| CN105217616A (en) * | 2015-10-20 | 2016-01-06 | 天津大学 | Porous graphene load carbon nano-onions three-dimensional composite material preparation method |
| CN105945277A (en) * | 2016-05-17 | 2016-09-21 | 中国工程物理研究院激光聚变研究中心 | Onion-shaped fullerene clad metal palladium core shell structure nano-particle and preparation method thereof |
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| CN106621962A (en) | 2017-05-10 |
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