CN103055814B - Graphene transfer brush and preparation method thereof - Google Patents
Graphene transfer brush and preparation method thereof Download PDFInfo
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- CN103055814B CN103055814B CN201310017621.6A CN201310017621A CN103055814B CN 103055814 B CN103055814 B CN 103055814B CN 201310017621 A CN201310017621 A CN 201310017621A CN 103055814 B CN103055814 B CN 103055814B
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Abstract
The invention relates to a graphene transfer brush and a preparation method thereof. The method comprises the following steps of: preparing 2 to 10 mg/mL of aqueous solution of graphene oxide, mixing the aqueous solution and ascorbic acid, stirring uniformly to obtain a mixed solution, taking a bar-like or long handle-like brush rod with the length of 20 to 50 centimeters, vertically soaking the front end of the brush rod into the mixed solution, fixing the brush rod in the mixed solution, heating the solution fixed with the brush rod for 10 to 30 minutes at the temperature between 70 and 90 DEG C, taking the brush rod out, cleaning the brush rod for 3 to 5 times by using deionized water, and thus obtaining the graphene transfer brush. The graphene is prepared into the graphene transfer brush, so that a water body is prevented from being secondarily polluted by diffusion of the graphene in water, the adsorption effect on the graphene is improved, and the recovery rate of the graphene is improved at the same time. The raw materials are readily available, the preparation method is simple, and the production cost is low.
Description
Technical field
The present invention relates to a kind of Graphene and turn brush and preparation method thereof, belong to water-treatment technology field.
Background technology
Graphene is a kind of new material of the individual layer sheet honeycomb structure consisting of carbon atom, be the thinnest in known materials be also the hardest nano material.Graphene has good physics and chemistry character, causes in recent years international extensive concern.At present, the application of Graphene mainly concentrates on electric property aspect, as the preparation of micromolecular Electrochemical Detection, biology sensor, DNA detection and capacitor, battery material etc.In addition, Graphene in fields such as noise control, desalinization, antibacterial material, tunnel barrier materials and thermal interfacial materials also all tool have great prospects for development.
Between pollutant in Graphene and water body, can produce very strong complex reaction, thereby pollutant is had to very strong adsorption capacity, its huge specific area also makes it have good absorption property, is the sorbing material that has huge applications potentiality in water treatment procedure.Meanwhile, Graphene also has certain application in the water treatment technologies such as catalytic degradation as carrier.But traditional Graphene sorbing material is generally pulverulent solids, as nano material, in water treatment procedure, be difficult to realize Separation of Solid and Liquid, easily water body is caused to secondary pollution, therefore limited its application in water treatment field.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of Graphene and turn brush and preparation method thereof
Technical scheme of the present invention is as follows:
Graphene turns a brush, comprises brush holder support and Graphene solid bristle, and described brush holder support is bar-shaped or long handle shape, and described Graphene solid bristle is arranged on the front end of brush holder support, and Graphene solid bristle accounts for 1/3 ~ 2/3 of whole brush holder support.
Described brush holder support material is graphite or titanium.
The present invention also provides a kind of Graphene to turn the preparation method of brush, comprises the following steps:
(1) graphene oxide is made into the graphite oxide aqueous solution that concentration is 2～10mg/mL, then mixes with ascorbic acid and stir, make mixed solution, the mass ratio of described graphite oxide aqueous solution and ascorbic acid is 1:6～1:8;
(2) get the bar-shaped of length 20～50cm or long handle shape brush holder support, the front end of brush holder support is dipped vertically in the mixed solution that step (1) makes, fixedly brush holder support is in mixed solution, and it is length of brush rod 1/3～2/3 that described brush holder support immerses length in solution;
(3) by the solution that is fixed with brush holder support in step (2) in 70～90 ℃ of heating 10～30min, take out brush holder support, by washed with de-ionized water 3～5 times, make Graphene and turn brush.
According to the present invention, preferred, in step (1), the graphite oxide aqueous solution that concentration is 4mg/mL with ascorbic acid in mass ratio for the proportioning of 1:6 is mixed.
According to the present invention, preferred, in step (1), the preparation method of described graphite oxide aqueous solution is as follows: graphene oxide powder is joined in deionized water, and sonic oscillation 30min under normal temperature, is mixed with the graphite oxide aqueous solution of 4mg/mL.
According to the present invention, preferred, in step (1), the solution that is fixed with brush holder support heats 30min in 90 ℃ of water-bath environment.
This preparation method's reaction principle is to utilize the hydrophobicity of Graphene and the stacking effect of Graphene conjugated structure pi-pi bond, makes Graphene assemble and form solid shape Graphene bristle at brush holder support around.
Graphene of the present invention turns brush and is applicable to the absorption degradation of pollutant in water treatment technology and the fields such as carrier that are used as catalyst.
Raw material ascorbic acid of the present invention, graphene oxide are commercially available prod.
Advantage of the present invention is as follows:
1, the present invention is prepared into Graphene by Graphene and turns brush, has avoided the diffusion of Graphene in water and water body is caused to secondary pollution, has strengthened the adsorption effect on Graphene, has improved the rate of recovery of Graphene simultaneously.
2, Graphene of the present invention turns brush, Graphene solid bristle is around assembled and is formed at brush holder support by Graphene, simple and convenient in being applied to water treatment procedure, service efficiency is high, Graphene solid bristle is compared and has been strengthened adsorption capacity with the Graphene of dispersion, is convenient to separated with water body simultaneously.
3, Graphene of the present invention turns brush easy to clean, is convenient to again utilize.
4, the present invention prepares the raw material that Graphene turns brush and is easy to get, and preparation technology is simple, low production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation that Graphene of the present invention turns brush,
Wherein, 1, brush holder support; 2, Graphene solid bristle.
The specific embodiment
Below in conjunction with embodiment, the present invention will be further described, but be not limited to this.The raw material using in embodiment: ascorbic acid is commercial product, Qingdao Tian Xin food additives Co., Ltd is on sale; Graphene oxide is commercial product, and Changzhou science and technology element limited company is on sale.
Embodiment 1
Graphene turns a brush, and structure as shown in Figure 1, comprises brush holder support 1 and Graphene solid bristle 2, and described brush holder support 1 is bar-shaped, and Graphene solid bristle 2 is arranged on the front end of brush holder support 1, and Graphene solid bristle 2 accounts for 1/3 of whole brush holder support.The material of brush holder support 1 is graphite.
Embodiment 2
Graphene turns brush as described in Example 1, and difference is,
Described brush holder support 1 is long handle shape, and Graphene solid bristle 2 accounts for 2/3 of whole brush holder support.The material of brush holder support 1 is titanium.
Embodiment 3
Graphene turns a preparation method for brush as described in Example 1, comprises the following steps:
1, take the O of 400mg
30graphene oxide is molten to add in 100mL deionized water, and sonic oscillation 30min under normal temperature is mixed with the graphite oxide aqueous solution of 4mg/mL, minute gets graphite oxide aqueous solution in 100mL beaker.
2, get ascorbic acid, add in graphite oxide aqueous solution, graphite oxide aqueous solution and ascorbic acid mass ratio are 1:6, mix and stir, and make mixed solution.
3, get after the graphite rod flushing that long 30cm radius is 0.5cm, the front end of graphite rod is dipped vertically in the mixed solution making, and adds a cover anchor stone inker.
4, beaker is placed in to 90 ℃ of water-bath environment and heats 30min, brush holder support around forms and whole Graphene is turned to brush after solid graphite alkene bristle and take out in the middle of solution, with making Graphene after washed with de-ionized water 5 times, turns brush.
Experimental result demonstration, graphite rod front end has formed the Graphene solid bristle of about 1.5cm thickness, and graphite oxide aqueous solution is clarified completely.
Embodiment 4
Graphene turns a preparation method for brush as described in Example 1, comprises the following steps:
1, take the O of 400mg
30graphene oxide is molten to add in 100mL deionized water, and sonic oscillation 30min under normal temperature is mixed with the graphite oxide aqueous solution of 4mg/mL, minute gets graphite oxide aqueous solution in 100mL beaker.
2, get ascorbic acid, add in graphite oxide aqueous solution, graphite oxide aqueous solution and ascorbic acid mass ratio are 1:6, mix and stir, and make mixed solution.
3, get after the graphite rod flushing that long 30cm radius is 0.5cm, the front end of graphite rod is dipped vertically in the mixed solution making, and adds a cover anchor stone inker.
4, beaker is placed in to 70 ℃ of water-bath environment and heats 15min, brush holder support around forms after solid graphite alkene bristle in the middle of solution, takes out graphite rod, with after washed with de-ionized water 5 times, obtains finished product.
Experimental result demonstration, graphite rod front end has formed the Graphene solid bristle of about 1cm thickness, the clarification of graphite oxide aqueous solution.
Embodiment 5
Graphene turns a preparation method for brush as described in Example 1, comprises the following steps:
1, take the O of 400mg
30graphene oxide is molten to add in 100mL deionized water, and sonic oscillation 30min under normal temperature is mixed with the graphite oxide aqueous solution of 4mg/mL, minute gets graphite oxide aqueous solution in 100mL beaker.
2, get ascorbic acid, add in graphite oxide aqueous solution, graphite oxide aqueous solution and ascorbic acid mass ratio are 1:8, mix and stir, and make mixed solution.
3, get after the graphite rod flushing that long 50cm radius is 0.5cm, the front end of graphite rod is dipped vertically in the mixed solution making, and adds a cover anchor stone inker.
4, beaker is placed in to 90 ℃ of water-bath environment and heats 30min, brush holder support around forms and whole Graphene is turned to brush after solid graphite alkene bristle and take out in the middle of solution, with making Graphene after washed with de-ionized water 3 times, turns brush.
Experimental result demonstration, graphite rod front end has formed the bristle of about 2.3cm thickness, and graphite oxide aqueous solution is clarified completely.
Claims (1)
1. a Graphene turns the preparation method of brush, comprise brush holder support and Graphene solid bristle, described brush holder support is bar-shaped or long handle shape, described Graphene solid bristle is arranged on the front end of brush holder support, Graphene solid bristle accounts for whole brush holder support 1/3 ~ 2/3, described brush holder support material is graphite or titanium, and preparation method comprises the following steps:
(1) graphene oxide is made into the graphite oxide aqueous solution that concentration is 2～10mg/mL, then mixes with ascorbic acid
And stir, making mixed solution, the mass ratio of described graphite oxide aqueous solution and ascorbic acid is 1:6～1:8;
(2) get the bar-shaped of length 20～50cm or long handle shape brush holder support, the front end of brush holder support is dipped vertically into step (1) makes
In mixed solution, fixedly brush holder support is in mixed solution, and it is length of brush rod 1/3～2/3 that described brush holder support immerses length in solution;
(3) by the solution that is fixed with brush holder support in step (2) in 70～90 ℃ of heating 10～30min, take out brush holder support, spend from
Sub-water cleans 3～5 times, makes Graphene and turns brush.
2
.graphene according to claim 1 turns the preparation method of brush, it is characterized in that, in step (1), the graphite oxide aqueous solution that concentration is 4mg/mL with ascorbic acid in mass ratio for the proportioning of 1:6 is mixed.
3
.graphene according to claim 1 turns the preparation method of brush, it is characterized in that, in step (1), the preparation method of described graphite oxide aqueous solution is as follows: graphene oxide powder is joined in deionized water, sonic oscillation 30min under normal temperature, is mixed with the graphite oxide aqueous solution of 4mg/mL.
4
.the preparation method who turns brush according to the Graphene described in claim 1, is characterized in that, in step (3), the solution that is fixed with brush holder support heats 30min in 90 ℃ of water-bath environment.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020270A (en) * | 2009-09-09 | 2011-04-20 | 中国科学院金属研究所 | Macro-preparation for big size graphene |
| CN102502609A (en) * | 2011-11-10 | 2012-06-20 | 东华大学 | Method for preparing graphene hollow microspheres for anisotropic conductive materials |
| CN102557017A (en) * | 2010-12-07 | 2012-07-11 | 三星电子株式会社 | Graphene structure and method of fabricating the same |
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| KR20090026568A (en) * | 2007-09-10 | 2009-03-13 | 삼성전자주식회사 | Graphene sheet and process for preparing the same |
| US9359675B2 (en) * | 2010-04-22 | 2016-06-07 | Basf Se | Producing two-dimensional sandwich nanomaterials based on graphene |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020270A (en) * | 2009-09-09 | 2011-04-20 | 中国科学院金属研究所 | Macro-preparation for big size graphene |
| CN102557017A (en) * | 2010-12-07 | 2012-07-11 | 三星电子株式会社 | Graphene structure and method of fabricating the same |
| CN102502609A (en) * | 2011-11-10 | 2012-06-20 | 东华大学 | Method for preparing graphene hollow microspheres for anisotropic conductive materials |
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