CN109316976B - Super-hydrophobic super-oleophylic bionic graphene composite membrane prepared by electrochemical method - Google Patents
Super-hydrophobic super-oleophylic bionic graphene composite membrane prepared by electrochemical method Download PDFInfo
- Publication number
- CN109316976B CN109316976B CN201811250750.9A CN201811250750A CN109316976B CN 109316976 B CN109316976 B CN 109316976B CN 201811250750 A CN201811250750 A CN 201811250750A CN 109316976 B CN109316976 B CN 109316976B
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- steel wire
- wire mesh
- super
- composite membrane
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/022—Metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0039—Inorganic membrane manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/38—Hydrophobic membranes
Abstract
The invention provides a method for preparing a super-hydrophobic and super-oleophylic graphene composite membrane, which comprises the following steps of (1) cutting a graphite foil and a stainless steel wire net into sheets with the same size for later use; (2) immersing the stainless steel wire mesh in the step (1) into hydrochloric acid in the step (2), taking out after 3min, washing the stainless steel wire mesh with distilled water for many times until no hydrochloric acid residue exists, and obtaining the stainless steel wire mesh without the oxide layer for later use; (3) the super-hydrophobic super-oleophylic graphene composite membrane is prepared by using a stainless steel wire mesh as a cathode electrode, using a graphite foil as an anode electrode, using a mixed solution of ammonium sulfate and ammonia water as an electrolyte, taking out the stainless steel wire mesh after electrolysis, repeatedly washing the stainless steel wire mesh with distilled water, and then putting the stainless steel wire mesh into an oven for drying.
Description
Technical Field
The invention relates to the technical field of graphene composite membrane preparation, in particular to a super-hydrophobic super-oleophylic bionic graphene composite membrane prepared by an electrochemical method.
Background
Graphene, which is the thinnest, hardest and strongest novel nano carbon material with electrical and thermal conductivity found at present, has been known as "black gold" in the industry, which is the king of new materials, and is a two-dimensional honeycomb lattice structure formed by closely arranging carbon atoms by sp2 bonds, and has excellent physical and chemical properties of electricity, mechanics, thermology and the like. The main synthesis method of the graphene at present is as follows: physical mechanical stripping, chemical redox, chemical vapor deposition, and electrochemical stripping. With the rapid development of national economy, a large amount of oily industrial wastewater is discharged, and accidents of crude oil leakage also frequently occur, so that the health and ecological balance of human beings are seriously harmed. Therefore, the treatment of oily wastewater is the key to solving the environmental pollution nowadays. It is well known that the use of low surface energy materials can improve the wettability of surfaces, resulting in superhydrophobic surfaces, whereas graphene has low surface energy and it has hydrophobic and oleophilic properties. And increasing the surface roughness of the material may also increase its hydrophobicity.
Disclosure of Invention
In order to solve the technical problems, the invention successfully prepares the super-hydrophobic super-oleophylic graphene composite membrane material by attaching graphene on a rough stainless steel wire mesh by an electrochemical method.
The invention provides a method for preparing a super-hydrophobic and super-oleophylic graphene composite membrane, which comprises the following steps of,
(1) cutting the graphite foil and the stainless steel wire mesh into sheets with the same size for later use;
(2) taking a certain amount of normal hexane and absolute ethyl alcohol, taking hydrochloric acid with the mass fraction of 37% and water according to the volume ratio of 1: 1, mixing for later use; preparing 0.1M ammonium sulfate solution for later use; taking a certain amount of 25% ammonia water and ammonium sulfate solution according to the volume ratio of 1: 20, mixing for later use;
(3) and (2) soaking the stainless steel wire mesh in the step (1) in 40mL of n-hexane for two days, taking out, washing with distilled water, and soaking in 40mL of absolute ethyl alcohol for one day. Finally, immersing the stainless steel wire mesh into the hydrochloric acid obtained in the step (2), taking out after 3min, washing the stainless steel wire mesh with distilled water for many times until no hydrochloric acid residue exists, and obtaining the stainless steel wire mesh without the oxide layer for later use;
(4) and (3) using the stainless steel wire mesh without the oxide layer in the step (3) as a cathode electrode, using the graphite foil in the step (1) as an anode electrode, using the mixed solution of ammonium sulfate and ammonia water in the step (2) as an electrolyte, controlling the electrolysis voltage to be 4-8V, and the electrolysis time to be 2-5h, taking out the stainless steel wire mesh, repeatedly washing the stainless steel wire mesh with distilled water, and then putting the stainless steel wire mesh into an oven for drying to obtain the super-hydrophobic and super-oleophylic graphene composite membrane.
Preferably, the aqueous solution obtained from each washing is tested in step (3) above using an acid-base test paper until the pH paper shows neutrality.
Preferably, in the step (4), the drying temperature is 60 ℃ and the drying time is 12 h.
Preferably, the electrolysis time of the step (4) is 3-4 hours, the voltage is controlled at 5-7V, and the drying temperature is constant at 60 ℃.
Preferably, the diameter of the mesh of the stainless steel wire mesh in the step (1) is 40-100 μm.
Preferably, in the step (1), a diamond wire saw wire cutting machine tool is used in combination with the ultrasonic vibration tool to cut the graphite foil material.
Preferably, the ultrasonic vibration tool has a power of 350W and an ultrasonic frequency of 20 kHz.
The invention has the beneficial effects that:
(1) by adopting an electrolytic method, graphene is directly changed from graphene to graphene attached to the surface of the stainless steel wire mesh, rather than firstly generating graphene oxide and then generating graphene through reduction. The method adopts an electrolytic method to generate the graphene in one step, so that the raw material of the graphene is not wasted, the process is simpler and saves time.
(2) The graphene is generated by the electrolysis method in one step, an oxidant and a reducing agent which are necessary in the Hummers method are not needed, only ammonia water and ammonium sulfate are needed in the whole process, the discharge amount of industrial three wastes is small, and compared with the traditional preparation process, the method has the advantages that harmful substances in the three wastes are small, and the three wastes are treated more singly. Therefore, the production process provided by the invention has the advantages of high yield, simple process and low cost of three-waste treatment, and has great improvement on the aspects of yield, environmental protection compared with the existing production process.
(3) According to the invention, graphene is attached to the stainless steel wire mesh by a one-step method to obtain the graphene composite membrane, the obtained graphene composite membrane has low surface performance of graphene and roughness of the wire mesh, the composite membrane has super-hydrophobic and super-oleophilic properties, oil-water separation can be rapidly carried out, and the separation process is simple without auxiliary conditions.
Drawings
Fig. 1 is a scanning electron microscope image of the graphene composite film prepared in example 1, magnified 200 times.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a method for preparing a super-hydrophobic and super-oleophylic graphene composite membrane, which comprises the following steps of,
cutting 48 μm stainless steel wire mesh into pieces with size of 4 × 3.5cm2Cutting graphite foil into pieces with same size of 4 x 3.5cm2The stainless steel wire mesh is placed into 40mL of n-hexane for soaking for two days, then taken out, washed by distilled water and then placed into 40mL of absolute ethyl alcohol for soaking for one day. Taking 10mL of distilled water and 10mL of hydrochloric acid, mixing the distilled water and the hydrochloric acid to prepare 1.4M hydrochloric acid solution, putting the soaked stainless steel wire mesh into the hydrochloric acid solution, taking out after 3min, and cleaning with a large amount of distilled water. 2.6428g of ammonium sulfate granules were taken and poured into a 250mL beaker, to which 200mL of water was added and stirred well with a glass rod. 10mL of ammonia water was taken out from a measuring cylinder, slowly poured into the ammonium sulfate solution, and stirred uniformly with a glass rod. A constant-voltage double-electrode electrochemical system is adopted, a stainless steel wire mesh soaked by hydrochloric acid is used as a cathode, a graphite foil is used as an anode, a prepared ammonia water and ammonium sulfate mixed solution is used as an electrolyte, the voltage is controlled to be 4-8V, ionization is carried out for 3 hours, and the experiment is stopped. Taking out the stainless steel wire net, cleaning with distilled water for 3 times, and placing in a constant temperature drying oven. The temperature is controlled to be 60 ℃, and the mixture is taken out after 12 hours.
The picture that the composite membrane is magnified by 200 times under a scanning electron microscope is taken, as shown in figure 1 in the attached drawing, the water-oil contact angle of the generated graphene composite membrane is measured, and the result shows that the water contact angle of the composite membrane is 150 degrees, the oil contact angle of the composite membrane is almost 0 degree, and the composite membrane has super-strong hydrophobicity and lipophilicity. When the graphene composite membrane is used for separating a mixture of kerosene and water, the kerosene can quickly permeate through the screen due to the action of gravity, and the water is retained above the screen due to the super-strong hydrophobicity of the composite membrane. Experimental results show that the composite membrane can be used for oil-water separation.
Example 2
The invention provides a method for preparing a super-hydrophobic and super-oleophylic graphene composite membrane, which comprises the following steps of shearing a 60-micrometer stainless steel wire mesh into pieces with the size of 4 x 3.5cm2Cutting graphite foil into pieces with same size of 4 x 3.5cm2The stainless steel wire mesh is placed into 40mL of n-hexane for soaking for two days, then taken out, washed by distilled water and then placed into 40mL of absolute ethyl alcohol for soaking for one day. Taking 10mL of distilled water and 10mL of hydrochloric acid, mixing the distilled water and the hydrochloric acid to prepare 1.4M hydrochloric acid solution, putting the soaked stainless steel wire mesh into the hydrochloric acid solution, taking out after 3min, and cleaning with a large amount of distilled water. 2.6428g of ammonium sulfate granules were taken and poured into a 250mL beaker, to which 200mL of water was added and stirred well with a glass rod. 10mL of ammonia water was taken out from a measuring cylinder, slowly poured into the ammonium sulfate solution, and stirred uniformly with a glass rod. A constant-voltage double-electrode electrochemical system is adopted, a stainless steel wire mesh soaked by hydrochloric acid is used as a cathode, a graphite foil is used as an anode, a prepared ammonia water and ammonium sulfate mixed solution is used as an electrolyte, the voltage is controlled to be 4-8V, ionization is carried out for 3 hours, and the experiment is stopped. Taking out the stainless steel wire net, cleaning with distilled water for 3 times, and placing in a constant temperature drying oven. The temperature is controlled to be 60 ℃, and the mixture is taken out after 12 hours.
The water-oil contact angle of the generated graphene composite membrane is measured, and the result shows that the water contact angle of the composite membrane is 145 degrees, the oil contact angle of the composite membrane is almost 0 degree, and the composite membrane has super-strong hydrophobicity and lipophilicity. When the graphene composite membrane is used for separating a mixture of kerosene and water, the kerosene can quickly permeate through the screen due to the action of gravity, and the water is retained above the screen due to the super-strong hydrophobicity of the composite membrane. Experimental results show that the composite membrane can be used for oil-water separation.
Example 3
This example prepares a hydrophobic and oleophilic graphene composite membrane, the preparation method includes the following steps,
cutting 80 μm stainless steel wire mesh into 4 × 3.5cm2Cutting graphite foil intoThe same size is 4 x 3.5cm2The stainless steel wire mesh is placed into 40mL of n-hexane for soaking for two days, then taken out, washed by distilled water and then placed into 40mL of absolute ethyl alcohol for soaking for one day. Taking 10mL of distilled water and 10mL of hydrochloric acid, mixing the distilled water and the hydrochloric acid to prepare 1.4M hydrochloric acid solution, putting the soaked stainless steel wire mesh into the hydrochloric acid solution, taking out after 3min, and cleaning with a large amount of distilled water. 2.6432g of ammonium sulfate granules were taken and poured into a 250mL beaker, to which 200mL of water was added and stirred well with a glass rod. 10mL of ammonia water was taken out from a measuring cylinder, slowly poured into the ammonium sulfate solution, and stirred uniformly with a glass rod. A constant-voltage double-electrode electrochemical system is adopted, a stainless steel wire mesh soaked by hydrochloric acid is used as a cathode, a graphite foil is used as an anode, a prepared ammonia water and ammonium sulfate mixed solution is used as an electrolyte, the voltage is controlled to be 4-8V, ionization is carried out for 3 hours, and the experiment is stopped. Taking out the stainless steel wire net, cleaning with distilled water for 3 times, and placing in a constant temperature drying oven. The temperature is controlled to be 60 ℃, and the mixture is taken out after 12 hours. The water-oil contact angle of the generated graphene composite membrane is measured, and the result shows that the water contact angle of the composite membrane is 136 degrees, the oil contact angle of the composite membrane is 0 degree, and the composite membrane shows super-strong hydrophobicity and lipophilicity. The invention shows that when the mesh diameter of the stainless steel screen is increased to 80 μm, the stainless steel screen can be used for oil-water separation.
Example 4
This example prepares a hydrophobic and oleophilic graphene composite membrane, the preparation method includes the following steps,
cutting 100 μm stainless steel wire mesh into pieces with size of 4 × 3.5cm2Cutting graphite foil into pieces with same size of 4 x 3.5cm2The stainless steel wire mesh is placed into 40mL of n-hexane for soaking for two days, then taken out, washed by distilled water and then placed into 40mL of absolute ethyl alcohol for soaking for one day. Taking 10mL of distilled water and 10mL of hydrochloric acid, mixing the distilled water and the hydrochloric acid to prepare 1.4M hydrochloric acid solution, putting the soaked stainless steel wire mesh into the hydrochloric acid solution, taking out after 3min, and cleaning with a large amount of distilled water. 2.6432g of ammonium sulfate granules were taken and poured into a 250mL beaker, to which 200mL of water was added and stirred well with a glass rod. 10mL of ammonia water was taken out from a measuring cylinder, slowly poured into the ammonium sulfate solution, and stirred uniformly with a glass rod. Electrochemical system using constant voltage dual electrodesAnd the system takes the stainless steel wire mesh soaked by hydrochloric acid as a cathode, takes the graphite foil as an anode, takes the prepared ammonia water and ammonium sulfate mixed solution as electrolyte, controls the voltage at 4-8V, ionizes for 3 hours, and stops the experiment. Taking out the stainless steel wire net, cleaning with distilled water for 3 times, and placing in a constant temperature drying oven. The temperature is controlled to be 60 ℃, and the mixture is taken out after 12 hours. The water-oil contact angle of the generated graphene composite membrane is measured, and the result shows that the water contact angle of the composite membrane is 120 degrees, the oil contact angle of the composite membrane is 10 degrees, and the composite membrane shows super-strong hydrophobicity and lipophilicity. The invention shows that when the mesh diameter of the stainless steel screen is increased to 100 mu m, the stainless steel screen can still be used for oil-water separation.
Example 5
This example prepares a hydrophobic and oleophilic graphene composite membrane, the preparation method includes the following steps,
cutting 120 μm stainless steel wire mesh into 4 × 3.5cm2Cutting graphite foil into pieces with same size of 4 x 3.5cm2The stainless steel wire mesh is placed into 40mL of n-hexane to be soaked for two days, then the stainless steel wire mesh is taken out to be washed by distilled water and then is placed into 40mL of absolute ethyl alcohol to be soaked for one day, 10mL of distilled water and 10mL of hydrochloric acid are taken out to be mixed to prepare 1.4M hydrochloric acid solution, the soaked stainless steel wire mesh is placed into the hydrochloric acid solution, the stainless steel wire mesh is taken out after 3min, and then the stainless steel wire mesh is washed by a large amount of distilled water.
2.6478g of ammonium sulfate granules were taken and poured into a 250mL beaker, to which 200mL of water was added and stirred well with a glass rod. 10mL of ammonia water was taken out from a measuring cylinder, slowly poured into the ammonium sulfate solution, and stirred uniformly with a glass rod. A constant-voltage double-electrode electrochemical system is adopted, a stainless steel wire mesh soaked by hydrochloric acid is used as a cathode, a graphite foil is used as an anode, a prepared ammonia water and ammonium sulfate mixed solution is used as an electrolyte, the voltage is controlled to be 4-8V, ionization is carried out for 3 hours, and the experiment is stopped. Taking out the stainless steel wire net, cleaning with distilled water for 3 times, and placing in a constant temperature drying oven. The temperature is controlled to be 60 ℃, and the mixture is taken out after 12 hours.
The water-oil contact angle of the generated graphene composite membrane is measured, and the result shows that the water contact angle of the composite membrane is 115 degrees, the oil contact angle of the composite membrane is 20 degrees, and the composite membrane shows super-strong hydrophobicity and lipophilicity. The invention shows that when the mesh diameter of the stainless steel screen is increased to 120 mu m, the stainless steel screen can still be used for oil-water separation.
Example 6
This example prepares a hydrophobic and oleophilic graphene composite membrane, the preparation method includes the following steps,
cutting 150 μm stainless steel wire mesh into pieces with size of 4 × 3.5cm2Cutting graphite foil into pieces with same size of 4 x 3.5cm2The stainless steel wire mesh is placed into 40mL of n-hexane to be soaked for two days, then the stainless steel wire mesh is taken out to be washed by distilled water and then is placed into 40mL of absolute ethyl alcohol to be soaked for one day, 10mL of distilled water and 10mL of hydrochloric acid are taken out to be mixed to prepare 1.4M hydrochloric acid solution, the soaked stainless steel wire mesh is placed into the hydrochloric acid solution, the stainless steel wire mesh is taken out after 3min, and then the stainless steel wire mesh is washed by a large amount of distilled water.
2.6478g of ammonium sulfate granules were taken and poured into a 250mL beaker, to which 200mL of water was added and stirred well with a glass rod. 10mL of ammonia water was taken out from a measuring cylinder, slowly poured into the ammonium sulfate solution, and stirred uniformly with a glass rod. A constant-voltage double-electrode electrochemical system is adopted, a stainless steel wire mesh soaked by hydrochloric acid is used as a cathode, a graphite foil is used as an anode, a prepared ammonia water and ammonium sulfate mixed solution is used as an electrolyte, the voltage is controlled to be 4-8V, ionization is carried out for 3 hours, and the experiment is stopped. Taking out the stainless steel wire net, cleaning with distilled water for 3 times, and placing in a constant temperature drying oven. The temperature is controlled to be 60 ℃, and the mixture is taken out after 12 hours.
The water-oil contact angle of the generated graphene composite membrane is measured, and the result shows that the water contact angle of the composite membrane is 107 ℃, the oil contact angle of the composite membrane is 26 degrees, and the composite membrane shows super-strong hydrophobicity and lipophilicity. The invention shows that when the mesh diameter of the stainless steel screen is increased to 150 mu m, the stainless steel screen can still be used for oil-water separation.
Table 1 lists the influence of the mesh diameter of the stainless steel wire mesh on the oil contact angle and the water contact angle of the graphene composite membrane in examples 1-6, and it can be known from Table 1 that when the diameter of the stainless steel wire mesh is between 40 and 100 μm, the hydrophobic effect is good, and the oleophylic effect is unrelated to the diameter of the stainless steel wire mesh.
Table 1 influence of mesh diameter of stainless steel wire mesh on oil contact angle and water contact angle of graphene composite film
The present invention has been described in detail with reference to the foregoing embodiments, and it will be understood by those skilled in the art that various changes in the form and details of the foregoing embodiments may be made, or equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. A method for preparing a super-hydrophobic and super-oleophylic graphene composite membrane is characterized by comprising the following steps of:
(1) cutting the graphite foil and the stainless steel wire mesh into sheets with the same size, wherein the diameter of meshes of the stainless steel wire mesh is 40-100 mu m for later use;
(2) taking a certain amount of normal hexane and absolute ethyl alcohol, taking hydrochloric acid with the mass fraction of 37% and water according to the volume ratio of 1: 1, mixing for later use; preparing 0.1M ammonium sulfate solution for later use; taking a certain amount of 25% ammonia water and ammonium sulfate solution according to the volume ratio of 1: 20, mixing for later use;
(3) soaking the stainless steel wire mesh in the step (1) in 40mL of n-hexane for two days, taking out, washing with distilled water, and soaking in 40mL of absolute ethyl alcohol for one day; finally, immersing the stainless steel wire mesh into the hydrochloric acid obtained in the step (2), taking out after 3min, washing the stainless steel wire mesh with distilled water for many times until no hydrochloric acid residue exists, and obtaining the stainless steel wire mesh without the oxide layer for later use;
(4) and (3) using the stainless steel wire mesh without the oxide layer in the step (3) as a cathode electrode, using the graphite foil in the step (1) as an anode electrode, using the mixed solution of ammonium sulfate and ammonia water in the step (2) as an electrolyte, controlling the electrolysis voltage to be 5-7V, and the electrolysis time to be 3-4h, taking out the stainless steel wire mesh, repeatedly washing the stainless steel wire mesh with distilled water, and then putting the stainless steel wire mesh into an oven for drying, wherein the drying temperature is constant at 60 ℃, and the drying time is 12h, so that the super-hydrophobic super-oleophylic graphene composite membrane is obtained.
2. The method for preparing a super-hydrophobic and super-oleophilic graphene composite membrane according to claim 1, wherein the aqueous solution obtained from each washing is detected in the step (3) by using an acid-base test paper until the pH test paper shows neutrality.
3. The method for preparing the superhydrophobic and superoleophilic graphene composite film according to claim 1, wherein in the step (1), a diamond wire saw wire cutting machine tool is adopted to match with an ultrasonic vibration tool to cut the graphene material.
4. The method for preparing the super-hydrophobic and super-oleophilic graphene composite membrane according to claim 3, wherein the ultrasonic vibration tool power is 350W, and the ultrasonic frequency is 20 kHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811250750.9A CN109316976B (en) | 2018-10-25 | 2018-10-25 | Super-hydrophobic super-oleophylic bionic graphene composite membrane prepared by electrochemical method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811250750.9A CN109316976B (en) | 2018-10-25 | 2018-10-25 | Super-hydrophobic super-oleophylic bionic graphene composite membrane prepared by electrochemical method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109316976A CN109316976A (en) | 2019-02-12 |
| CN109316976B true CN109316976B (en) | 2021-05-11 |
Family
ID=65261826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811250750.9A Active CN109316976B (en) | 2018-10-25 | 2018-10-25 | Super-hydrophobic super-oleophylic bionic graphene composite membrane prepared by electrochemical method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109316976B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589820A (en) * | 2019-10-21 | 2019-12-20 | 华北理工大学 | Preparation method of thin-layer graphene oxide material |
| CN113292140A (en) * | 2021-06-28 | 2021-08-24 | 长春工业大学 | Preparation method and application of nitrogen-doped titanium dioxide particle-loaded graphene-nickel foam membrane electrode |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316637A (en) * | 2013-07-17 | 2013-09-25 | 兰州理工大学 | Preparation method of three-dimensional metal mesh with preferential adsorption/separation performance |
| CN103466603A (en) * | 2013-08-09 | 2013-12-25 | 中国科学院苏州纳米技术与纳米仿生研究所 | Preparation method of graphene dispersion liquid, and preparation method of graphene film |
| CN104828817A (en) * | 2015-05-18 | 2015-08-12 | 中国石油大学(华东) | Oxidized graphene netted film with efficient oil-water separation capacity |
| CN105754144A (en) * | 2016-03-04 | 2016-07-13 | 武汉工程大学 | Super-hydrophobic reduced graphene oxide/sponge composite material and preparation method thereof |
| CN106245104A (en) * | 2016-07-20 | 2016-12-21 | 西安交通大学 | A kind of method preparing Graphene based on electrochemical process stripping dual graphite electrodes |
-
2018
- 2018-10-25 CN CN201811250750.9A patent/CN109316976B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316637A (en) * | 2013-07-17 | 2013-09-25 | 兰州理工大学 | Preparation method of three-dimensional metal mesh with preferential adsorption/separation performance |
| CN103466603A (en) * | 2013-08-09 | 2013-12-25 | 中国科学院苏州纳米技术与纳米仿生研究所 | Preparation method of graphene dispersion liquid, and preparation method of graphene film |
| CN104828817A (en) * | 2015-05-18 | 2015-08-12 | 中国石油大学(华东) | Oxidized graphene netted film with efficient oil-water separation capacity |
| CN105754144A (en) * | 2016-03-04 | 2016-07-13 | 武汉工程大学 | Super-hydrophobic reduced graphene oxide/sponge composite material and preparation method thereof |
| CN106245104A (en) * | 2016-07-20 | 2016-12-21 | 西安交通大学 | A kind of method preparing Graphene based on electrochemical process stripping dual graphite electrodes |
Non-Patent Citations (1)
| Title |
|---|
| 《Superhydrophobic and superoleophilic properties of graphene-based sponges fabricated using a facile dip coating method》;Duc Dung Nguyen et al;《Energy Environ.Sci.》;20120504;第5卷;第7908-7912页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109316976A (en) | 2019-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106245104B (en) | A method of preparing graphene based on electrochemical process stripping dual graphite electrodes | |
| CN109316976B (en) | Super-hydrophobic super-oleophylic bionic graphene composite membrane prepared by electrochemical method | |
| CN106915829A (en) | Carbon fiber electrode and preparation method thereof, bipolar chamber bioelectrochemistry equipment | |
| CN105417638A (en) | Heterogeneous electric Fenton system and preparation and application thereof | |
| CN107954420B (en) | A kind of method that Anodic removing graphite prepares three-dimensional grapheme | |
| CN107732255A (en) | A kind of combination electrode of graphene-containing and metal organic frame and preparation method thereof | |
| KR20160072535A (en) | Manufacturing method for the graphene nanosheets and a graphene ink using electrochemical exfoliation in a persulfate electrolyte solution | |
| CN107628609A (en) | The manufacture method and graphene of number of plies controllable grapheme | |
| CN111591991A (en) | Device for electrochemically preparing MXene | |
| CN107497302A (en) | Preparation method and applications using copper foam as the bionic super-hydrophobic film of substrate | |
| Liu et al. | Enhanced Cr reduction and bioelectricity production in microbial fuel cells using polypyrrole-coated MnO2 on carbon cloth | |
| KR20160002009A (en) | Graphene nanosheets, graphene powder, graphene ink, graphene substrate, and method for manufacturing the graphene nanosheets | |
| CN105198046B (en) | A kind of method that Ti Graphene electrodes efficiently remove nitrate in groundwater | |
| CN109321932A (en) | Graphene and the preparation method and application thereof | |
| Shen et al. | Carbon nanofibers modified graphite felt for high performance anode in high substrate concentration microbial fuel cells | |
| CN104492400B (en) | A kind of water treatment absorbent and its preparation method and application | |
| KR101653181B1 (en) | Method for production of graphene | |
| CN107317043B (en) | Preparation method of graphene/tin dioxide sandwich structure film on surface of aluminum alloy bipolar plate | |
| Maarof et al. | Effect of varying the amount of binder on the electrochemical characteristics of palm shell activated carbon | |
| CN108117067A (en) | A kind of device and method using one step volume production graphene of electrochemical process | |
| Jin et al. | Electrochemical reductive dechlorination of trichloroacetic acid on porous Ag-Pd thin foam | |
| CN106115869A (en) | The nitrogen-doped graphene aeroge of one-step synthesis method is applied to electro-adsorption mercury ions in waste water | |
| CN105129778A (en) | Preparation method of nano ZnO/graphene composite material | |
| CN102234811B (en) | Method for recovering tellurium from cadmium telluride-contained assembly | |
| KR20160120377A (en) | Electrode manufacturing method having a carbon nano-plane structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |