CN103084179A - Preparation method of copper or copper oxide plating graphite composite material - Google Patents
Preparation method of copper or copper oxide plating graphite composite material Download PDFInfo
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- CN103084179A CN103084179A CN2013100360040A CN201310036004A CN103084179A CN 103084179 A CN103084179 A CN 103084179A CN 2013100360040 A CN2013100360040 A CN 2013100360040A CN 201310036004 A CN201310036004 A CN 201310036004A CN 103084179 A CN103084179 A CN 103084179A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention provides a preparation method of a copper or copper oxide plating graphite composite material, and relates to a preparation method of a nano inorganic composite material. The invention solves the technical problems that the existing copper or copper oxide plating graphite composite material preparation method is complex in preparation process, high in toxicity, high in cost and is difficult to industrially produce. The preparation method comprises the steps of: 1, dissolving copper acetate in a mixed solution of deionized water, absolute ethyl alcohol and N,N-dimethyl formamide; 2, adding expanded graphite in a solution obtained in the step 1, and magnetically stirring for 2-4hours; 3, pouring a solution obtained in the step 2 in a polytetrafluoroethylene internal reaction kettle, placing the reaction kettle in a drying oven for reacting; and 4, naturally cooling and then washing a settled sample in the kettle by using the deionized water, and drying in an air dry oven to obtain the copper or copper oxide plating graphite composite material. The preparation method is applied to the field of preparation of nano inorganic composite materials.
Description
Technical field
The present invention relates to a kind of nano inorganic composite manufacture method.
Background technology
Medium Copper-Graphite Composite integrates anti-attrition, electric conductivity plays an important role in the machine driven system that relates to the electric conductivity requirement, is widely used in all many-sides of the national economic development and national defense construction.But the wettability of graphite on the copper matrix is very poor, the skewness of graphite in the copper matrix, and this has just affected the combination property of composite.Experimental study adopts the composite of copper-plated graphite and superfine cupper powder to improve the wetting and distribution of graphite at the copper matrix, copper-copper-plating graphite composite material dense structure, the graphite small and dispersed, be evenly distributed, the metallic copper coated graphite forms the tiny three-dimensional network in space, this structural state has been given full play to copper and graphite advantage separately, makes the electric conductivity of composite and wearability all be better than the copper-plating graphite composite material of copper-not.But the methods such as currently used electrochemistry plating and hydrazine hydrate, hydrogen reducing exist complex process, high toxicity, and cost is high, is difficult to the shortcomings such as industrial production.Be badly in need of the technical method that new green cheapness is easy to produce in batches and solve the copper-plated problem of graphite surface.
Photocatalysis technology is the another whole new set of applications in opto-electronic conversion field, and this technology obtains broad research and application at hydrogen production by water decomposition and environmental improvement field, can process be difficult to biodegradable organic wastewater and purify air.In order to take full advantage of solar energy, for more and more with the research of visible light catalyst, Cu
2O is a kind of typical P-type semiconductor, it is performance and Stability Analysis of Structures under nanoscale, can prepare hydrogen by decomposition water, also can degradating organic dye such as methylene blue, (the H.L.Xu such as methyl orange, W. Z.Wang, W. Zhu.Shape Evolution and Size-Controllable Synthesis of Cu
2O Octahedra and Their Morphology-Dependent Photocatalytic Properties.J.Phys.Chem.B2006,110,13829-13834).But single-phase Cu
2The quantum yield of O is very low, thereby affects its photocatalytic activity.At present, have some for Cu
2Research report (MA.Mahmoud, W.Qian, MA.El-Sayed.Following Charge Separation on the Nanoscal in Cu that O is composite modified
2O-Au Nanoframe Hollow Nanoparticles.Nano Lett.2011,11,3285-3289), but the many complexity of its preparation process and cost are higher.In addition for Cu
2The composite of O and graphite is reported seldom, and the expanded graphite specific area is large, the space abundant, organic matter is had good absorption property, Cu
2The compound of O and graphite not only can be improved it to organic absorption, also can strengthen the separative efficiency of carrier, improves photocatalytic activity, and this will become a kind of potential desired light catalyst.
Summary of the invention
The present invention is the preparation process complexity that will solve existing copper facing or Cu oxide graphite composite material preparation method existence, high toxicity, cost is high, is difficult to industrial technical problem, thereby the preparation method of a kind of copper facing or Cu oxide graphite composite material is provided.
The preparation method of a kind of copper facing of the present invention or Cu oxide graphite composite material carries out according to the following steps:
One, the Schweinfurt green with 0.2~2.0g is dissolved in mixed solution A, the concentration that is configured to Schweinfurt green is the solution of 0.001~1M, wherein mixed solution A is by deionized water, absolute ethyl alcohol and nitrogen, and nitrogen dimethyl formamide (DMF) is 0.05~1: 0.5~5: 0.5~5 composition by volume;
Two, expanded graphite is joined in the solution that step 1 obtains magnetic agitation 2~4h; Wherein, the expanded graphite 30~60s that expanded under 1000~1500 ℃ by natural flake graphite obtains; The mass ratio of expanded graphite and Schweinfurt green is 1~3: 10~60;
Three, the solution that step 2 is obtained is poured in the internal reaction still of polytetrafluoroethylene (PTFE), then it is sealed in the outer reactor of stainless steel, and the baking oven that then is placed in 80~240 ℃ reacts 0.5~32h;
Four, naturally after cooling with deposit sample washed with de-ionized water in still, until washing lotion pH value is 6~7, then dry under 30~150 ℃ in air dry oven, namely get copper facing or Cu oxide graphite composite material.
The present invention includes following beneficial effect:
1, reaction system of the present invention is not added any surfactant, and product is pure, need not complicated separating-purifying process;
2, in preparation method of the present invention without any toxic reagent, environmentally friendly, nontoxic pollution-free; Preparation process is simple, favorable reproducibility, and is with low cost, is fit to industrial production in enormous quantities;
3, the present invention can prepare the Cu oxide graphite composite material of different oxygen content by controlling reaction condition, can be at copper-copper-plating graphite composite material, the solar energy conversion, photocatalysis degradation organic contaminant, decomposition water prepare the effectively application of many-sided acquisition such as hydrogen.
Description of drawings
Fig. 1 is the copper facing of test one preparation or the stereoscan photograph of Cu oxide graphite composite material;
Fig. 2 is the copper facing of test one preparation or the X-ray diffraction picture of Cu oxide graphite composite material, and wherein, ■ is Cu, ● be expanded graphite;
Fig. 3 is the copper facing of test three preparations or the stereoscan photograph of Cu oxide graphite composite material;
Fig. 4 is the copper facing of test three preparations or time and the degradation rate figure of Cu oxide graphite composite material degraded methyl blue, wherein, ▲ be [Cu/Cu
2O]
XThe degradation rate of/EG, ■ are Cu
2The degradation rate of O.
The specific embodiment
The specific embodiment one: a kind of copper facing of present embodiment or the preparation method of Cu oxide graphite composite material carry out according to the following steps:
One, the Schweinfurt green with 0.2~2.0g is dissolved in mixed solution A, the concentration that is configured to Schweinfurt green is the solution of 0.001~1M, wherein mixed solution A is by deionized water, absolute ethyl alcohol and nitrogen, and nitrogen dimethyl formamide (DMF) is 0.05~1: 0.5~5: 0.5~5 composition by volume;
Two, expanded graphite is joined in the solution that step 1 obtains magnetic agitation 2~4h; Wherein, the expanded graphite 30~60s that expanded under 1000~1500 ℃ by natural flake graphite obtains; The mass ratio of expanded graphite and Schweinfurt green is 1~3: 10~60;
Three, the solution that step 2 is obtained is poured in the internal reaction still of polytetrafluoroethylene (PTFE), then it is sealed in the outer reactor of stainless steel, and the baking oven that then is placed in 80~240 ℃ reacts 0.5~32h;
Four, naturally after cooling with deposit sample washed with de-ionized water in still, until washing lotion pH value is 6~7, then dry under 30~150 ℃ in air dry oven, namely get copper facing or Cu oxide graphite composite material.
Present embodiment comprises following beneficial effect:
1, the reaction system of present embodiment is not added any surfactant, and product is pure, need not complicated separating-purifying process;
2, in the preparation method of present embodiment without any toxic reagent, environmentally friendly, nontoxic pollution-free; Preparation process is simple, favorable reproducibility, and is with low cost, is fit to industrial production in enormous quantities;
3, present embodiment can prepare the Cu oxide graphite composite material of different oxygen content by controlling reaction condition, can be at copper-copper-plating graphite composite material, the solar energy conversion, photocatalysis degradation organic contaminant, decomposition water prepare the effectively application of many-sided acquisition such as hydrogen.
The specific embodiment two: what present embodiment was different from the specific embodiment one is: in step 1, mixed solution A is by deionized water, absolute ethyl alcohol and nitrogen, and nitrogen dimethyl formamide (DMF) formed in 0.1: 1: 1 by volume.Other is identical with the specific embodiment one.
The specific embodiment three: what present embodiment was different from the specific embodiment one or two is: in step 2, expanded graphite is obtained by natural flake graphite expansion 30s under 1000 ℃.Other is identical with the specific embodiment one or two.
The specific embodiment four: what present embodiment was different from one of specific embodiment one to three is: in step 2, the mass ratio of expanded graphite and Schweinfurt green is 1: 10.Other is identical with one of specific embodiment one to three.
The specific embodiment five: what present embodiment was different from one of specific embodiment one to four is: the baking oven that is placed in 140~200 ℃ in step 3 reacts 10~24h.Other is identical with one of specific embodiment one to four.
The specific embodiment six: what present embodiment was different from one of specific embodiment one to five is: oven dry under 60 ℃ in air dry oven in step 4.Other is identical with one of specific embodiment one to five.
By following verification experimental verification beneficial effect of the present invention:
Test one: the preparation method of a kind of copper facing or Cu oxide graphite composite material realizes according to the following steps:
One, the Schweinfurt green with 0.2g is dissolved in mixed solution A, and the concentration that is configured to Schweinfurt green is the solution of 0.02M, and wherein mixed solution A is by deionized water, absolute ethyl alcohol and nitrogen, and nitrogen dimethyl formamide (DMF) formed in 0.1: 1: 1 by volume;
Two, expanded graphite is joined in the solution that step 1 obtains magnetic agitation 2h; Wherein, expanded graphite is obtained by natural flake graphite expansion 30s under 1000 ℃; The mass ratio of expanded graphite and Schweinfurt green is 1: 10;
Three, the solution that step 2 is obtained is poured in the internal reaction still of polytetrafluoroethylene (PTFE), then it is sealed in the outer reactor of stainless steel, and the baking oven that then is placed in 200 ℃ reacts 10h;
Four, naturally after cooling with deposit sample washed with de-ionized water in still, until washing lotion pH value is 7, then dry under 60 ℃ in air dry oven, namely get copper facing or Cu oxide graphite composite material.
Copper facing or the Cu oxide graphite composite material of this test preparation are [Cu]
X/ EG composite, wherein EG shared weight in composite is 0~100wt%.
The copper facing of this test preparation or the stereoscan photograph of Cu oxide graphite composite material can find out from Fig. 1 as shown in Figure 1, and the cubic nanometer crystalline substance is grown on the lamella of graphite equably;
The copper facing of this test preparation or the X-ray diffraction picture of Cu oxide graphite composite material as shown in Figure 2, wherein, ■ is Cu, ● be expanded graphite, can prove further that by Fig. 2 what grow on graphite flake layer is nano-metallic copper.
Test two: the preparation method of a kind of copper facing or Cu oxide graphite composite material realizes according to the following steps:
One, the Schweinfurt green with 0.2g is dissolved in mixed solution A, and the concentration that is configured to Schweinfurt green is the solution of 0.02M, and wherein mixed solution A is by deionized water, absolute ethyl alcohol and nitrogen, and nitrogen dimethyl formamide (DMF) formed in 0.1: 1: 1 by volume;
Two, expanded graphite is joined in the solution that step 1 obtains magnetic agitation 2h; Wherein, expanded graphite is obtained by natural flake graphite expansion 30s under 1000 ℃; The mass ratio of expanded graphite and Schweinfurt green is 1: 10;
Three, the solution that step 2 is obtained is poured in the internal reaction still of polytetrafluoroethylene (PTFE), then it is sealed in the outer reactor of stainless steel, and the baking oven that then is placed in 140 ℃ reacts 10h;
Four, naturally after cooling with deposit sample washed with de-ionized water in still, until washing lotion pH value is 7, then dry under 60 ℃ in air dry oven, namely get copper facing or Cu oxide graphite composite material.
Copper facing or the Cu oxide graphite composite material of this test preparation are [Cu
2O]
X/ EG composite, wherein EG shared weight in composite is 0~100wt%; This material has very high visible light catalysis activity, and at photocatalysis degradation organic contaminant, the hydrogen production by water decomposition aspect all can obtain effective application.
Test three: the preparation method of a kind of copper facing or Cu oxide graphite composite material realizes according to the following steps:
One, the Schweinfurt green with 0.2g is dissolved in mixed solution A, and the concentration that is configured to Schweinfurt green is the solution of 0.02M, and wherein mixed solution A is by deionized water, absolute ethyl alcohol and nitrogen, and nitrogen dimethyl formamide (DMF) formed in 0.1: 1: 1 by volume;
Two, expanded graphite is joined in the solution that step 1 obtains magnetic agitation 2h; Wherein, expanded graphite is obtained by natural flake graphite expansion 30s under 1000 ℃; The mass ratio of expanded graphite and Schweinfurt green is 1: 10;
Three, the solution that step 2 is obtained is poured in the internal reaction still of polytetrafluoroethylene (PTFE), then it is sealed in the outer reactor of stainless steel, and the baking oven that then is placed in 140 ℃ reacts 24h;
Four, naturally after cooling with deposit sample washed with de-ionized water in still, until washing lotion pH value is 7, then dry under 60 ℃ in air dry oven, namely get copper facing or Cu oxide graphite composite material.
Copper facing or the Cu oxide graphite composite material of this test preparation are [Cu/Cu
2O]
X/ EG composite, wherein EG shared weight in composite is 0~100wt%.
For the stereoscan photograph of the copper facing of this test preparation or Cu oxide graphite composite material as shown in Figure 3, as can be seen from Figure 3, on the nanocrystalline lamella that is grown in equably graphite.
Under visible light, adopt methylene blue to investigate the photocatalytic activity of this material as probe molecule, the time of copper facing or Cu oxide graphite composite material degraded methyl blue and degradation rate figure as shown in Figure 4, wherein, ▲ be [Cu/Cu
2O]
XThe degradation rate of/EG, ■ are Cu
2The degradation rate of O, as can be seen from Figure 4, [Cu/Cu in 30 minutes under indoor light
2O]
XThe degradation rate of/EG is Cu
212.5 times of O.
Claims (6)
1. the preparation method of a copper facing or Cu oxide graphite composite material, the preparation method who it is characterized in that copper facing or Cu oxide graphite composite material carries out according to the following steps:
One, the Schweinfurt green with 0.2~2.0g is dissolved in mixed solution A, the concentration that is configured to Schweinfurt green is the solution of 0.001~1M, wherein mixed solution A is by deionized water, absolute ethyl alcohol and nitrogen, and the nitrogen dimethyl formamide is 0.05~1: 0.5~5: 0.5~5 composition by volume;
Two, expanded graphite is joined in the solution that step 1 obtains magnetic agitation 2~4h; Wherein, the expanded graphite 30~60s that expanded under 1000~1500 ℃ by natural flake graphite obtains; The mass ratio of expanded graphite and Schweinfurt green is 1~3: 10~60;
Three, the solution that step 2 is obtained is poured in the internal reaction still of polytetrafluoroethylene (PTFE), then it is sealed in the outer reactor of stainless steel, and the baking oven that then is placed in 80~240 ℃ reacts 0.5~32h;
Four, naturally after cooling with deposit sample washed with de-ionized water in still, until washing lotion pH value is 6~7, then dry under 30~150 ℃ in air dry oven, namely get copper facing or Cu oxide graphite composite material.
2. the preparation method of a kind of copper facing according to claim 1 or Cu oxide graphite composite material, is characterized in that in step 1, mixed solution A is by deionized water, absolute ethyl alcohol and nitrogen, and the nitrogen dimethyl formamide formed in 0.1: 1: 1 by volume.
3. the preparation method of a kind of copper facing according to claim 1 or Cu oxide graphite composite material, is characterized in that in step 2, expanded graphite is obtained by natural flake graphite expansion 30s under 1000 ℃.
4. the preparation method of a kind of copper facing according to claim 1 or Cu oxide graphite composite material is characterized in that in step 2, the mass ratio of expanded graphite and Schweinfurt green is 1: 10.
5. the preparation method of a kind of copper facing according to claim 1 or Cu oxide graphite composite material, the baking oven that it is characterized in that being placed in step 3 140~200 ℃ reacts 10~24h.
6. the preparation method of a kind of copper facing according to claim 1 or Cu oxide graphite composite material, is characterized in that oven dry under 60 ℃ in air dry oven in step 4.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104371664A (en) * | 2014-11-04 | 2015-02-25 | 镇江新梦溪能源科技有限公司 | Novel composite organic phase-change heat storage material and preparation method thereof |
WO2015143907A1 (en) * | 2014-03-26 | 2015-10-01 | 苏州格优碳素新材料有限公司 | Method for preparing high thermal conductive graphite film-copper composite material |
CN107828979A (en) * | 2017-11-02 | 2018-03-23 | 中国科学院山西煤炭化学研究所 | Copper facing expanded graphite strengthens the preparation method of metal-base composites |
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EP2269733A1 (en) * | 2009-06-08 | 2011-01-05 | Basf Se | Process for the direct synthesis of cu containing silicoaluminophosphate (cu-sapo-34) |
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Cited By (3)
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WO2015143907A1 (en) * | 2014-03-26 | 2015-10-01 | 苏州格优碳素新材料有限公司 | Method for preparing high thermal conductive graphite film-copper composite material |
CN104371664A (en) * | 2014-11-04 | 2015-02-25 | 镇江新梦溪能源科技有限公司 | Novel composite organic phase-change heat storage material and preparation method thereof |
CN107828979A (en) * | 2017-11-02 | 2018-03-23 | 中国科学院山西煤炭化学研究所 | Copper facing expanded graphite strengthens the preparation method of metal-base composites |
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Application publication date: 20130508 |