CN104591142A - Preparation method for oxidized graphene film - Google Patents
Preparation method for oxidized graphene film Download PDFInfo
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- CN104591142A CN104591142A CN201310522348.2A CN201310522348A CN104591142A CN 104591142 A CN104591142 A CN 104591142A CN 201310522348 A CN201310522348 A CN 201310522348A CN 104591142 A CN104591142 A CN 104591142A
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- suspension
- oxidized graphene
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- graphene oxide
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Abstract
A disclosed preparation method for an oxidized graphene film comprises grinding oxidized graphite, preparing a suspension with the concentration of 2-4 mg/mL, performing ultrasonic processing for 30 min, and then performing centrifugal processing on the suspension for 15-20 min to remove impurity in the suspension, so as to obtain the oxidized graphene colloidal suspension; and employing a microfiltration membrane to perform vacuum filtration on the oxidized graphene colloidal suspension for 12-25 h, after filtering, putting in a baking oven under the temperature condition of 40 DEG C for baking, and then tearing off the film from the filtration membrane. The prepared oxidized graphene colloidal suspension realizes single-sheet peeling of oxidized graphene, and the prepared film has good toughness and light transparency, and the application limitation problem of the film in the field of conductive materials is solved.
Description
Technical field
The invention belongs to graphite technology field, be specifically related to a kind of preparation method of graphene oxide film.
Background technology
Graphene is often used as the weighting material of electrical-conductive nanometer material because the physicalchemical structure with uniqueness makes it have good thermostability, light transmission, electroconductibility and physical strength, just because of these excellent characteristics of Graphene are just subject to extensive concern, although worked out many preparation methods now, but still come with some shortcomings part and area for improvement, such as graphene oxide film is isolator, and this limits its application in electro-conductive material field to a certain extent.
Summary of the invention
In order to overcome the above-mentioned technical problem that prior art field exists, the object of the invention is to, provide a kind of preparation method of graphene oxide film, method is simple, solves it and is leading the problem of application limitation of Material Field.
The preparation method of graphene oxide film provided by the invention, comprise the following steps: graphite oxide grinds by (1), be mixed with the suspension that concentration is 2-4mg/ml, supersound process 30min, afterwards, suspension centrifugal treating 15-20min, the impurity in removing suspension, obtains graphene oxide colloidal suspensions; (2) adopt millipore filtration vacuum filtration graphene oxide colloidal suspensions 12-25h, filter to be placed in baking oven and dry under the temperature condition of 40 DEG C, then film is taken off from filter membrane.
The preparation method of graphene oxide film provided by the invention, its beneficial effect is, obtained graphene oxide colloidal suspensions, and the monolithic achieving graphene oxide is peeled off; Obtained film has good toughness and light transmission, and solves it and leading the problem of application limitation of Material Field.
Embodiment
Below in conjunction with an embodiment, the preparation method of graphene oxide film provided by the invention is described in detail.
Embodiment
The preparation method of the graphene oxide film of the present embodiment, comprises the following steps: graphite oxide grinds by (1), is mixed with the suspension that concentration is 3g/ml, supersound process 30min, afterwards, suspension centrifugal treating 20min, impurity in removing suspension, obtains graphene oxide colloidal suspensions; (2) adopt millipore filtration vacuum filtration graphene oxide colloidal suspensions 25h, filter to be placed in baking oven and dry under the temperature condition of 40 DEG C, then film is taken off from filter membrane.
Claims (1)
1. the preparation method of a graphene oxide film, it is characterized in that: comprise the following steps: graphite oxide grinds by (1), be mixed with the suspension that concentration is 2-4mg/ml, supersound process 30min, afterwards, suspension centrifugal treating 15-20min, the impurity in removing suspension, obtains graphene oxide colloidal suspensions; (2) adopt millipore filtration vacuum filtration graphene oxide colloidal suspensions 12-25h, filter to be placed in baking oven and dry under the temperature condition of 40 DEG C, then film is taken off from filter membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310522348.2A CN104591142A (en) | 2013-10-30 | 2013-10-30 | Preparation method for oxidized graphene film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310522348.2A CN104591142A (en) | 2013-10-30 | 2013-10-30 | Preparation method for oxidized graphene film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104591142A true CN104591142A (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310522348.2A Pending CN104591142A (en) | 2013-10-30 | 2013-10-30 | Preparation method for oxidized graphene film |
Country Status (1)
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| CN (1) | CN104591142A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110831896A (en) * | 2017-05-05 | 2020-02-21 | 加利福尼亚大学董事会 | Purification and drying of graphene oxide |
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2013
- 2013-10-30 CN CN201310522348.2A patent/CN104591142A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110831896A (en) * | 2017-05-05 | 2020-02-21 | 加利福尼亚大学董事会 | Purification and drying of graphene oxide |
| US11787698B2 (en) | 2017-05-05 | 2023-10-17 | The Regents Of The University Of California | Purification and drying of graphene oxide |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150506 |