CN106621962A - Method for dispersing carbon onion - Google Patents
Method for dispersing carbon onion Download PDFInfo
- Publication number
- CN106621962A CN106621962A CN201710003052.8A CN201710003052A CN106621962A CN 106621962 A CN106621962 A CN 106621962A CN 201710003052 A CN201710003052 A CN 201710003052A CN 106621962 A CN106621962 A CN 106621962A
- Authority
- CN
- China
- Prior art keywords
- dispersion
- carbon onion
- onion
- carbon
- 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.)
- Granted
Links
- 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 23
- 239000006185 dispersion Substances 0.000 claims abstract description 51
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 8
- 239000010439 graphite Substances 0.000 claims abstract description 8
- 239000012498 ultrapure water Substances 0.000 claims abstract description 5
- 229910021642 ultra pure water Inorganic materials 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 29
- 238000005119 centrifugation Methods 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 229910021389 graphene Inorganic materials 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 230000000694 effects 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
- 230000015572 biosynthetic process Effects 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
- 238000001556 precipitation Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 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 method for mildly and efficiently dispersing carbon onion in water. The method includes following steps: (1), preparing oxidized graphite into a GO dispersion of 0.5mg mL-1:ultrasonically dispersing at ultrasonic power of 100W for 1h, centrifuging at a rotating speed of 8000rpm, and taking supernate after centrifuging to obtain the GO dispersion; using ultrapure water to dilute the GO dispersion to obtain a GO dispersion of 0.2-0.01mg/mL in concentration for standby use; (2), adding C onion into the GO dispersion with the concentration, ultrasonically dispersing at ultrasonic power of 100W for 1h, and standing to obtain a stable carbon onion dispersion. The method is simple to operate, dispersity of the carbon onion treated by the method is remarkably improved, and conditions are created for applying the carbon onion in the aspects of composite material preparation and electrochemical sensing.
Description
Technical field
The present invention relates to improve carbon onion dispersiveness technical field, specially a kind of side of gentle and high efficiency dispersion carbon onion
Method.
Background technology
Carbon nanomaterial is studied most extensively and using most nano materials, because they are with many excellent and only
Special optics, electricity and chemical property, before the aspects such as hydrogen storage, sensing, super electric and photoelectric device all present and are widely applied
Scape, is that the new carbon nano-composite material of synthesis opens new road with the electronic component of miniaturization, 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 study hotspot all the time.
However, the poor dispersiveness in water or organic solvent of carbon onion limits its further application, therefore effectively
Improving the dispersiveness of carbon onion becomes a difficult problem, this also problem to be solved exactly of the invention.
The content of the invention
Dispersiveness in order to further improve carbon onion of the invention, it is proposed that at ambient temperature using graphite oxide（GO）
Method to disperse carbon onion.
A kind of method of dispersion carbon onion, comprises the steps：
（1）, graphite oxide is configured to into 0.5mgmL-1GO dispersion liquids, ultrasonic power be 100W under the conditions of ultrasound point
Scattered 1h, is centrifuged under rotating speed 8000rpm, takes the supernatant after centrifugation and obtains GO dispersion liquids；It is with ultra-pure water that the GO dispersion liquids is dilute
Release, be prepared into the GO dispersion liquids that concentration is 0.2mg/mL ~ 0.01mg/mL standby；
（2）, in the GO dispersion liquids of above-mentioned concentration add C onions, and ultrasonic power be 100W under the conditions of ultrasonic disperse 1h,
It is static, obtain stable carbon onion dispersion liquid.
Preferably, step（1）In, graphite oxide is prepared using Hummer methods.
Preferably, step（1）Middle GO dispersion liquid concentrations are 0.1mg/mL ~ 0.01mg/mL.
It is further preferred that step（1）Middle GO dispersion liquid concentrations are 0.1mg/mL.
π-the π that this process employs between the hydrophobicity and GO of GO and carbon onion interact.Live with common surface
Property agent compare, the method is relatively gentle, 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.
Method of operating of the present invention is simple, and the dispersiveness of carbon onion processed by the invention in water is significantly carried
Height, is that carbon onion is really applied to composite and electrode material etc. and creates condition, with preferable application and popularization value.
Description of the drawings
Fig. 1 represents that carbon onion is in water in the present invention（a）With concentration for 0.1mg/mL graphite oxide dispersion（b）In
TEM figures after dispersion ultrasound 1h.
Fig. 2 represents that 5 bottles are respectively 10 mg carbon onions in 0.2mg/mL GO dispersion liquids（a）, high purity water（b）、
0.1mg/mL GO dispersion liquids（c）, 0.05mg/mL GO dispersion liquids（d）And 0.01mg/mL GO dispersion liquids（e）After middle ultrasonic 1h
And the standing state diagram of 8 hours at ambient temperature.
Specific embodiment
The specific embodiment of the present invention is further illustrated below.
A kind of method of the gentle and high efficiency dispersion carbon onion in water, comprises the steps：
1st, the graphite oxide prepared using Hummer methods is configured to into 0.5mgmL-1GO dispersion liquids, be in ultrasonic power
Ultrasonic disperse 1h under the conditions of 100W, under rotating speed 8000rpm 5min is centrifuged, and takes the dispersion liquid that the supernatant after centrifugation obtains GO.
With ultra-pure water by the GO dispersion liquids dilution, 5mL concentration is prepared into respectively and is respectively 0.2mg/mL, 0.1mg/mL, 0.05mg/mL
And the GO dispersion liquids of 0.01mg/mL are standby.
2nd, it is GO point that 5.0 mL concentration are respectively 0.1mg/mL, 0.05mg/mL and 0.01mg/mL to above-mentioned volume
The C onions of 10.0mg, and the ultrasonic disperse 1h under the conditions of ultrasonic power is 100W are separately added in dispersion liquid.
It was found that carbon onion obtains significantly in the GO dispersion liquids of 0.1mg/mL, 0.05mg/mL and 0.01mg/mL
Dispersion effect, does not almost reunite and lower floor, it is seen that dispersiveness of the carbon onion in GO dispersion liquids is significantly improved.Accompanying drawing
2 be carbon onion in the GO aqueous solution of variable concentrations ultrasound after one hour and the dispersion results that stand 8 hours, experiment finds carbon ocean
Bottle bottom of the green onion in the GO dispersion liquids of 0.05mg/mL and 0.01mg/mL has some trickle precipitations；And in 0.1mg/mL
GO in almost without lower floor and reunion, it is seen that carbon onion obtains more stable and high in the GO dispersion liquids of 0.1mg/mL
The dispersion of effect.
The present embodiment method makes full use of graphene oxide（GO）Stronger π-π between carbon onion interact, will not
With the graphene oxide solution of concentration（0.1mg/mL, 0.05mg/mL and 0.01mg/mL）For the dispersion of carbon onion, to identical
Dispersiveness of the carbon onion of quality in the graphene oxide solution of variable concentrations is compared and optimized, and finally draws carbon ocean
Green onion obtains more efficient and stable dispersion in concentration is for the graphene oxide solution of 0.1mg/mL.
Method of operating of the present invention is simple, and the dispersiveness of carbon onion processed by the invention is significantly improved, and is that carbon onion is being answered
The application of the aspect such as condensation material preparation and electrochemical sensing creates condition.
Above-mentioned embodiment is merely to illustrate present disclosure, but this is not limitation of the present invention, this area
Person skilled, without departing from the scope of the invention, can also make corresponding adjustment and modification, therefore all
The technical scheme that the mode of equivalent or equivalent variations is formed belongs to protection scope of the present invention.
Claims (4)
1. it is a kind of dispersion carbon onion method, it is characterised in that：Comprise the steps：
（1）, graphite oxide is configured to into 0.5mgmL-1GO dispersion liquids, ultrasonic power be 100W under the conditions of ultrasonic disperse
1h, is centrifuged under rotating speed 8000rpm, takes the supernatant after centrifugation and obtains GO dispersion liquids；With ultra-pure water by the GO dispersion liquids dilution,
It is prepared into the GO dispersion liquids that concentration is 0.2mg/mL ~ 0.01mg/mL standby；
（2）, in the GO dispersion liquids of above-mentioned concentration add C onions, and ultrasonic power be 100W under the conditions of ultrasonic disperse 1h,
It is static, obtain stable carbon onion dispersion liquid.
2. it is according to claim 1 dispersion carbon onion method, it is characterised in that：Step（1）In, graphite oxide is utilized
It is prepared by Hummer methods.
3. it is according to claim 1 and 2 dispersion carbon onion method, it is characterised in that：Step（1）Middle GO dispersion liquid concentrations
For 0.1mg/mL ~ 0.01mg/mL.
4. it is according to claim 3 dispersion carbon onion method, it is characterised in that：Step（1）Middle GO dispersion liquid concentrations are
0.1mg/mL。
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106621962A true CN106621962A (en) | 2017-05-10 |
| CN106621962B CN106621962B (en) | 2019-04-19 |
Family
ID=58842477
Family Applications (1)
| 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 |
|---|---|
| CN (1) | CN106621962B (en) |
Cited By (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 (5)
| 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 |
| US20110027162A1 (en) * | 2009-07-31 | 2011-02-03 | Massachusetts Institute Of Technology | Systems and methods related to the formation of carbon-based nanostructures |
| 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 |
-
2017
- 2017-01-04 CN CN201710003052.8A patent/CN106621962B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| US20110027162A1 (en) * | 2009-07-31 | 2011-02-03 | Massachusetts Institute Of Technology | Systems and methods related to the formation of carbon-based nanostructures |
| 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 |
Cited By (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 |
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| CN106621962B (en) | 2019-04-19 |
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Granted publication date: 20190419 |