CN104591162A - Preparation method of multi-response graphene/graphite oxide film - Google Patents
Preparation method of multi-response graphene/graphite oxide film Download PDFInfo
- Publication number
- CN104591162A CN104591162A CN201410817909.6A CN201410817909A CN104591162A CN 104591162 A CN104591162 A CN 104591162A CN 201410817909 A CN201410817909 A CN 201410817909A CN 104591162 A CN104591162 A CN 104591162A
- Authority
- CN
- China
- Prior art keywords
- graphite oxide
- graphene
- oxide film
- preparation
- multiple response
- 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
Abstract
The invention relates to a preparation method of a multi-response graphene/graphite oxide film. The method comprises the following steps of: ultrasonically dispersing the graphite oxide in deionized water to obtain a graphite oxide aqueous solution, and then, regulating the pH value to 2-6 by using acid; placing an active metal plate in the graphite oxide aqueous solution, placing the graphite oxide aqueous solution on a horizontal platform and maintaining temperature of 10-15 DEG C, standing, taking out the active metal plate 1-7 days later, washing, drying, and peeling off the film, then, thereby obtaining the multi-response graphene/graphite oxide film. The preparation method provided by the invention is simple, and can implement large-scale and low-cost production.
Description
Technical field
The invention belongs to the preparation field of multiple response material, the preparation method of the Graphene/graphite oxide film of particularly a kind of multiple response.
Background technology
Stimulate deformable material to be a class be subject to external environment stimulate (as light, temperature, humidity etc.) under its shape can there is according to stimulation degree the material that changes in various degree.Common actuator is shaped with electrostatically actuated, piezoelectric actuated, Electromagnetically actuated, shape memory alloy actuator, photic dynamic and thermal actuation etc.It more and more receives the concern of researcher as a kind of artificial intelligence material in recent years, particularly shows great application prospect in fields such as artificial-muscle, CD-ROM driver and Miniature optical mechanical systems.Compare with other activation manners, light (temperature) activates has remote-controlled energy supply, need not wire, motivating force is large, deflection is large, optical drive is clean, safety, and not by advantages such as electromagnetic interference, therefore the stimulation deformable material of light (temperature) activating profile is considered to one of most potential actuating material.This deformable material material that is most study with the cross-linking type liquid crystal polymer containing photosensitive groups such as nitrogen benzides all the time, the distortion of material is realized by the photoisomerization of azobenzene group.Current this material is applied in multiple optical drive flexible device, as plastics motor, Flexible Miniature Robotic, high-frequency oscillator, regenerated fiber etc.But this kind of optical drive deformable material usually also exists some problems, as macromolecular orientation complex process in preparation process, the photoresponse time long (>10s), recovery rate is slow, the problems such as repeatable accuracy not high (5% ~ 20%), significantly limit its performance and application.
From Univ Manchester UK physicist An Deliehaimu (Andre Geim) in 2004 and Constantine Nuo Woxiaoluofu (Konstantin Novoselov), successfully from graphite, isolate Graphene in an experiment, and confirm that it can be paid close attention to and study by Individual existence widely.Owing to having extremely excellent optics, the performance such as electrochemistry and machinery its be applied in a lot of field, comprise nanometer electronic device, supercomputer, solar cell, photon sensor and gene sequencing etc.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of preparation method of Graphene/graphite oxide film of multiple response, and the inventive method preparation is simple, can realize extensive, low cost production.
The preparation method of the Graphene/graphite oxide film of a kind of multiple response of the present invention, comprising:
(1) by the method for chemical stripping, crystalline flake graphite is prepared into graphite oxide;
(2) by graphite oxide ultrasonic disperse in deionized water, obtaining the graphite oxide aqueous solution, is then 2-6 with acid for adjusting pH;
(3) work ripple metal sheet is placed in the graphite oxide aqueous solution, places levelling bench and keep temperature to be 10-50 DEG C, place 1-7 days, take out ripple metal sheet post-flush of living, dry, stripping film, obtains the Graphene/graphite oxide film of multiple response.
In described step (2), the concentration of the graphite oxide aqueous solution is 1mg/ml ~ 15mg/ml.
In described step (2), acid is the one in sulfuric acid, hydrochloric acid.
Ripple metal sheet of living in described step (3) is the one in Copper Foil, nickel foil, steel plate; Ripple metal sheet alive supersound process in organic solvent.
Described organic solvent is one or more in ethanol, acetone.
Ripple metal sheet of living in described step (3) is placed in the graphite oxide aqueous solution, and metal sheet is 5cm ~ 25cm apart from liquid level.
Rinse as deionized water rinsing in described step (3); In 50 DEG C of loft drier, drying is 3-8h.
Graphene/graphite oxide the film of the multiple response obtained in described step (3) deforms under illumination, steam, thermal stimulus, removes after stimulating and restores to the original state.
(for Copper Foil), the redox reaction that wherein surface, active metal occurs is:
nCu+nGO+2n H+＝nCu
2++nrGO+nH
2O。
Active metal sheet material substrate, can, with the oxidized graphite flake layer generation redox reaction being adsorbed onto its surface, graphite oxide is reduced to a certain extent, and the graphite oxide reducing degree more first adsorbed be larger in acid condition.
Reversible multiple stimulation provided by the invention drives the preparation method of deformable membrane, take active metal as reductive agent, the graphite oxide prepared with chemical method stripping method is starting material, has prepared reversible multiple stimulation drive distortion graphene/graphene oxide film by the mode of liquid deposition.
The step that chemical method of the present invention prepares graphite oxide is: joined by natural flake graphite in the concentrated sulfuric acid solution of potassium permanganate, and stir 2 hours in ice-water bath (~ 0 DEG C), then to move in 98 DEG C of oil bath pans and to add 200mL deionized water, to be incubated reactant filtering and washing after 0.5 hour, to obtain graphite oxide prepared by chemical method.
The present invention makes two kinds of compositions occur different structure and arrangement by special reduction means and thin film-forming method on same film, thus show multiple external stimulus (illumination, steam and temperature) there is the effect of deformation response, simultaneously two kinds of compositions do not have sharp interface be namely by a kind of composition gradually transition be another kind of composition, prepared film is not needing in the high molecular situation of any traditional Photo alignment of interpolation in illumination, fast distortion is there is under steam and thermal stimulus, remove after stimulating and can restore to the original state, and significantly do not decay and fatigue after repeating up to a hundred times, also give the good mechanical property of this material and electric property with the method for active metal substrate liquid phase LBL self-assembly simultaneously.
The method of the liquid deposition that the present invention is used can control the graphite oxide that different time deposits to surface, active metal well and have different reducing degrees, thus different character is namely higher with the one side reductibility of metal-clad has good photothermal deformation ability to make the film upper and lower surface prepared have, another side is substantially in non-reduced state and has good Vapor adsorption desorption ability, and this is also realize stimulating driving the basic of distortion.
Multiple stimulation prepared by the inventive method drives deformable membrane material can stimulate light, steam and temperature etc. and makes deformational behavior.When light beam is irradiated to film surface, it can be made to the bending action of graphite oxide one side, and variation film maintenance deformation state is not constant to keep irradiation distance and power, stops irradiate quickly recovering to flattened state; For temperature, there is same effect.For the stimulation of steam, it can make to reduced graphene film curving steam to be blowed to film surface, stops air blowing film then to recover smooth.Distortion under stimulating at above three kinds all can repeat up to a hundred times and not occur obvious decay.
A kind of reversible multiple stimulation prepared by present method drives the time deposited due to graphite oxide in liquid phase environment in distortion Graphene/graphite oxide film different and makes two surfaces have larger reducing degree difference; Two portions that simultaneously difference of depositing time and character result also in film have larger textural difference, and Graphene side has closely knit interlayer structure and graphite oxide side has loose three-dimensional net structure; The graphite oxide utilizing reducing degree higher has higher photo-thermal conversion efficiency, and the graphite oxide that oxygen-containing functional group is more simultaneously has the stronger absorption of steam and desorption ability (change along with surface temperature); The combination of these two kinds of character film is had following characteristics: fast distortion occurs under illumination, steam and thermal stimulus, removes after stimulating and can restore to the original state, and there is good resistance to fatigue.
In sum, the present invention proposes a kind of preparation method possessing the Graphene/graphite oxide film of reversible multiple stimulation driving distortion, present method makes two kinds of compositions occur different structure and arrangement by special reduction means and film on same film, thus show the effect multiple external stimulus (illumination, steam and temperature) to deformation response.This film can be widely used in driving field of functional materials, is a kind of universality method preparing high-performance actuating film.
beneficial effect
The present invention prepares the spatial distribution (film one side is the higher Graphene of reducing degree, and another side is the more graphite oxide of oxygen-containing functional group) of the graphite oxide of the reducing degree controlling graphite oxide artificial in the process of film and its different reducing degree.Combine the high photo-thermal conversion efficiency of Graphene and graphite oxide to the good adsorption/desorption ability of steam, fast distortion is there is when not needing to achieve when adding any Photo alignment high score subclass material it under illumination, steam and thermal stimulus, remove after stimulating and can restore to the original state, and there is good resistance to fatigue.Preparation method of the present invention is simple, can realize extensive, low cost production.
Accompanying drawing explanation
Fig. 1 is the detailed process schematic diagram of Graphene/graphite oxide film prepared by embodiment 1;
The field emission scanning electron microscope photo of film prepared by Fig. 2 embodiment 1, wherein a is the Electronic Speculum figure of whole thin-membrane section; B is the high multiple Electronic Speculum figure of film upper surface (graphene oxide side); C is the high multiple Electronic Speculum figure of film lower surface (Graphene side);
Fig. 3 is the upper and lower surface Raman Characterization that embodiment 1 prepares film;
Fig. 4 is the optical drive deformation of Graphene of the present invention/graphite oxide film under 1000nm infrared light;
Fig. 5 is the Graphene of the present invention/deformation of graphite oxide film under water vapour; Wherein, I-VIII is tumbling state.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Embodiment 1
Disperse concentration to be in deionized water 1mg/ml the graphite oxide highly peeled off, after dripping sulphur acid for adjusting pH to 2, ultrasonic disperse obtains the graphite oxide aqueous solution had good stability.Bottom the glassware required copper coin organic solvent (ethanol or acetone) ultrasonic cleaning post-drying being placed in the graphite oxide aqueous solution that previously configuration is housed (distance liquid level 10cm).Glassware is statically placed in levelling bench upper 1 day and keeps temperature to be 20 DEG C, take out bottom copper coin, now copper coin surface is deposited one layer graphene/graphite oxide hydrogel, and loft drier copper coin being put into 25 DEG C takes out for dry 6 hours, is peeled off by film subsequently from copper coin.Fig. 2 is the field emission scanning electron microscope figure of Graphene/graphite oxide thin cross-sections prepared by present method, can see that from Fig. 2 a the structure of whole section is not homogeneous clearly, its section is the short texture that a compact structure is from below transitioned into top gradually, from Fig. 2 b of higher multiple, in c, see in tectorium the hole with some three-dimensionals more clearly.
By upper and lower two the surperficial character of Raman spectrum analysis film.Fig. 3 is Raman spectrum analysis result, can be found out by the contrast of individual Surface Raman Spectra, the intensity contrast I at film lower surface (one side contacted with metal substrate) its D peak and G peak
d/ I
g(lower surface I larger than upper surface
d/ I
g=1.28, lower surface I
d/ I
g=1.09), demonstrate film lower surface fully and reduced by active metal, upper surface is then in graphite oxide state.Different from traditional Two-phase composite structure, the present invention has prepared two-phase coexistent by a step liquid phase deposition but the multiple stimulation of not obviously boundary activates the film responded, and has and well activates responsiveness and structural stability.
Fig. 4 is be the radiation of visible light film of 50 milliwatts/square centimeter in 560 nanometers, intensity, and film made bending response in 0.33 second, and remove illumination film and returned to formation state in 3.67 seconds, whole process shows higher response speed and resume speed.The Graphene prepared by the present invention/graphite oxide film has higher physical strength (breaking tenacity is up to 473MPa), the mask that simultaneously reduces has higher electric conductivity (5000S/m), higher physical strength and good electric conductivity can distinguish the photic deformable material of traditional polymer completely, greatly can widen its Application Areas.
Embodiment 2
Disperse concentration to be in deionized water 5mg/ml the graphite oxide highly peeled off, after dripping sulphur acid for adjusting pH to 4, ultrasonic disperse obtains the graphite oxide aqueous solution had good stability.Bottom the glassware required copper coin organic solvent (ethanol or acetone) ultrasonic cleaning post-drying being placed in the graphite oxide aqueous solution that previously configuration is housed (distance liquid level 10cm).Glassware left standstill with levelling bench upper 1 day and keep temperature to be 30 DEG C, take out bottom copper coin, now copper coin surface is deposited one layer graphene/graphite oxide hydrogel, and loft drier copper coin being put into 50 DEG C takes out for dry 2 hours, is peeled off by film subsequently from copper coin.The film taken off is formation state, and place it in (below is the hot water of 80 DEG C) on the permeable non-woven fabrics of water vapour, film exhibits goes out tumbling state (as Fig. 5), and sustainable long period and do not occur degrade condition.
Claims (8)
1. a preparation method for the Graphene/graphite oxide film of multiple response, comprising:
(1) by the method for chemical stripping, crystalline flake graphite is prepared into graphite oxide;
(2) by graphite oxide ultrasonic disperse in deionized water, obtaining the graphite oxide aqueous solution, is then 2-6 with acid for adjusting pH;
(3) work ripple metal sheet is placed in the graphite oxide aqueous solution, places levelling bench and keep temperature to be 10-50 DEG C, place 1-7 days, take out ripple metal sheet post-flush of living, dry, stripping film, obtains the Graphene/graphite oxide film of multiple response.
2. the preparation method of the Graphene/graphite oxide film of a kind of multiple response according to claim 1, is characterized in that: in described step (2), the concentration of the graphite oxide aqueous solution is 1mg/ml ~ 15mg/ml.
3. the preparation method of the Graphene/graphite oxide film of a kind of multiple response according to claim 1, is characterized in that: in described step (2), acid is the one in sulfuric acid, hydrochloric acid.
4. the preparation method of the Graphene/graphite oxide film of a kind of multiple response according to claim 1, is characterized in that: ripple metal sheet of living in described step (3) is the one in Copper Foil, nickel foil, steel plate; Ripple metal sheet alive supersound process in organic solvent.
5. the preparation method of the Graphene/graphite oxide film of a kind of multiple response according to claim 4, is characterized in that: described organic solvent is one or more in ethanol, acetone.
6. the preparation method of the Graphene/graphite oxide film of a kind of multiple response according to claim 1, is characterized in that: ripple metal sheet of living in described step (3) is placed in the graphite oxide aqueous solution, and metal sheet is 5cm ~ 25cm apart from liquid level.
7. the preparation method of the Graphene/graphite oxide film of a kind of multiple response according to claim 1, is characterized in that: rinse as deionized water rinsing in described step (3); Put into 50 DEG C of dry 3-8h of loft drier.
8. the preparation method of the Graphene/graphite oxide film of a kind of multiple response according to claim 1, it is characterized in that: the Graphene/graphite oxide film of the multiple response obtained in described step (3) deforms under illumination, steam, thermal stimulus, remove after stimulating and restore to the original state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817909.6A CN104591162B (en) | 2014-12-19 | 2014-12-19 | Preparation method of multi-response graphene/graphite oxide film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817909.6A CN104591162B (en) | 2014-12-19 | 2014-12-19 | Preparation method of multi-response graphene/graphite oxide film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104591162A true CN104591162A (en) | 2015-05-06 |
| CN104591162B CN104591162B (en) | 2017-01-11 |
Family
ID=53117283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410817909.6A Expired - Fee Related CN104591162B (en) | 2014-12-19 | 2014-12-19 | Preparation method of multi-response graphene/graphite oxide film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104591162B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587016A (en) * | 2016-12-08 | 2017-04-26 | 南京信息职业技术学院 | Oxidized graphene humidity response actuator and preparation method thereof |
| CN107201996A (en) * | 2017-06-07 | 2017-09-26 | 中国科学技术大学 | The preparation method of photic dynamic laminated film, photic dynamic laminated film and optical actuator |
| CN107684834A (en) * | 2017-09-19 | 2018-02-13 | 北京航空航天大学 | A kind of graphene-based seperation film of intelligent response type for mixed molecules separation and preparation method thereof |
| CN108356809A (en) * | 2018-02-09 | 2018-08-03 | 浙江工业大学 | A kind of origami structure based on optical drive autofolding |
| CN108358198A (en) * | 2018-03-07 | 2018-08-03 | 中国工程物理研究院化工材料研究所 | Multiple environment response driving graphene oxide film, preparation method and application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948108A (en) * | 2010-10-02 | 2011-01-19 | 上海交通大学 | Optimized preparation method of oxidized graphite paper |
| CN103043654A (en) * | 2011-10-12 | 2013-04-17 | 国家纳米科学中心 | Film containing graphene and/or graphene oxide, and preparation method thereof |
| CN103754864A (en) * | 2014-01-02 | 2014-04-30 | 上海理工大学 | Preparation method of graphene film |
-
2014
- 2014-12-19 CN CN201410817909.6A patent/CN104591162B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948108A (en) * | 2010-10-02 | 2011-01-19 | 上海交通大学 | Optimized preparation method of oxidized graphite paper |
| CN103043654A (en) * | 2011-10-12 | 2013-04-17 | 国家纳米科学中心 | Film containing graphene and/or graphene oxide, and preparation method thereof |
| CN103754864A (en) * | 2014-01-02 | 2014-04-30 | 上海理工大学 | Preparation method of graphene film |
Non-Patent Citations (2)
| Title |
|---|
| CHUANGANG HU ET AL.: "Spontaneous Reduction and Assembly of Graphene oxide into Three-Dimensional Graphene Network on Arbitrary Conductive Substrates", 《SCIENTIFIC REPORTS》 * |
| XUEBO CAO ET AL.: "Ambient Fabrication of Large-Area Graphene Films via a Synchronous Reduction and Assembly Strategy", 《ADV. MATER.》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587016A (en) * | 2016-12-08 | 2017-04-26 | 南京信息职业技术学院 | Oxidized graphene humidity response actuator and preparation method thereof |
| CN107201996A (en) * | 2017-06-07 | 2017-09-26 | 中国科学技术大学 | The preparation method of photic dynamic laminated film, photic dynamic laminated film and optical actuator |
| CN107201996B (en) * | 2017-06-07 | 2019-08-27 | 中国科学技术大学 | The preparation method of photic dynamic laminated film, photic dynamic laminated film and optical actuator |
| CN107684834A (en) * | 2017-09-19 | 2018-02-13 | 北京航空航天大学 | A kind of graphene-based seperation film of intelligent response type for mixed molecules separation and preparation method thereof |
| CN108356809A (en) * | 2018-02-09 | 2018-08-03 | 浙江工业大学 | A kind of origami structure based on optical drive autofolding |
| CN108358198A (en) * | 2018-03-07 | 2018-08-03 | 中国工程物理研究院化工材料研究所 | Multiple environment response driving graphene oxide film, preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104591162B (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104591162A (en) | Preparation method of multi-response graphene/graphite oxide film | |
| CN107235472B (en) | Porous vertical graphene nano wall array of N doping and the preparation method and application thereof | |
| Liu et al. | Rapid atmospheric pressure plasma jet processed reduced graphene oxide counter electrodes for dye-sensitized solar cells | |
| CN105384358B (en) | A kind of WO3Nano-chip arrays method for manufacturing thin film and its application study | |
| CN102290477B (en) | Photovoltaic cell based on graphene PN junction and preparation method thereof | |
| CN104311142B (en) | A kind of vertical-growth TiO2nanometer sheet and preparation method thereof | |
| CN103523827B (en) | There is the method for making of the dendritic titanium dioxide array of three-dimensional of swift electron transmission performance | |
| CN103638922B (en) | Preparation method of mesoporous tungsten trioxide/reduction-oxidation graphene composite photocatalyst | |
| CN105088312B (en) | The preparation method of titanium dioxide nano-pipe array thin film | |
| CN106540673A (en) | A kind of three-dimensional TiO2The synthetic method of/ZnO heterojunction array | |
| CN106733555B (en) | Super-hydrophobic surface capable of controlling rebound direction of impact liquid drops and construction method thereof | |
| CN102691084A (en) | Method for preparing ZnO nano-rod array through one-step electro-deposition | |
| CN100575245C (en) | A kind of method for preparing CNT/CdS nano flower composite material | |
| CN107610817A (en) | A kind of LBL self-assembly nano silver wire flexible conductive film | |
| CN103489651A (en) | Preparing method for embellish titanium dioxide nanotube array electrode material embellished by cadmium selenide nano-particles | |
| CN104098147B (en) | There is the NiO nano particle of rose-shaped shape characteristic with electrochemical method preparation | |
| CN106773143B (en) | Near-infrared photoinduced deformation graphene/NIPAAm composite film and preparation and application thereof | |
| Zhao et al. | Self-powered monoelectrodes made from graphene composite films to harvest rain energy | |
| Ma et al. | Responsive soft actuators with MXene nanomaterials | |
| CN104628262B (en) | Method for preparing matchstick-shaped TiO2 nanoparticle and nanorod composite array | |
| CN103412402B (en) | Photoelectric-synergy-driving liquid patterned penetration device based on micro-nano hierarchical structure omentum, and preparation method and application | |
| CN106842757A (en) | NiO nano-structure arrays material, preparation method, electrochromic device | |
| CN105304340A (en) | Preparation method of porous titanium dioxide thin film for dye-sensitized solar cell | |
| CN107227476B (en) | A kind of core-shell structure cuprous nano pn homojunction material and preparation method thereof | |
| CN111747747B (en) | Preparation method, product and application of carbon-based material with bionic fractal structure based on shaddock peel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20191219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |