CN109382003A - A kind of filter membrane and the preparation method and application thereof based on graphene - Google Patents
A kind of filter membrane and the preparation method and application thereof based on graphene Download PDFInfo
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- CN109382003A CN109382003A CN201811380613.7A CN201811380613A CN109382003A CN 109382003 A CN109382003 A CN 109382003A CN 201811380613 A CN201811380613 A CN 201811380613A CN 109382003 A CN109382003 A CN 109382003A
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- filter membrane
- graphene
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- adsorption layer
- antibiotic layer
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- 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
- B01D71/06—Organic material
-
- 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
- B01D67/0079—Manufacture of membranes comprising organic and inorganic components
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/48—Antimicrobial properties
Abstract
The present invention relates to a kind of filter membrane and the preparation method and application thereof based on graphene, filter membrane includes: perforated substrate；At least one antibiotic layer and at least one adsorption layer on the perforated substrate, wherein, at least one described antibiotic layer and at least one described adsorption layer are equipped with several holes, at least one described antibiotic layer includes at least one of graphene and graphene oxide, at least one described adsorption layer includes graphene, graphene oxide, graphene/metal oxide composite material and graphene/hydroxide composite material at least one.Above-mentioned filter membrane has the advantages that adsorb heavy metal and impurity well and inhibits bacterial activity.
Description
Technical field
The invention belongs to water filtration technology field, more particularly, it relate to a kind of filter membrane based on graphene and its
Preparation method and application.
Background technique
Most of chemical industry, pharmaceutical factory or Running-water Company rely on the main technique composition portion that UF membrane is filtered as water
Point.Currently, enterprise, which generallys use reverse osmosis membrane, carrys out purified water, reverse osmosis membrane can retain most of impurity and heavy metal, but with
The clarification time it is too long, reverse osmosis membrane purification water in will appear bacterium, cause purification water quality decline, to drink purification
The artificial of water is discharged to polluted source in river at actual bodily harm, or the water of purification.
Summary of the invention
Based on this, the present invention provides a kind of filter membrane and the preparation method and application thereof based on graphene, and water can be improved
Clean-up effect, while can also sterilize.
To achieve the above object, it adopts the following technical scheme that
A kind of filter membrane, comprising:
Perforated substrate；
At least one antibiotic layer on the perforated substrate and at least one adsorption layer, wherein it is described at least one
Antibiotic layer and at least one described adsorption layer are equipped with several holes, at least one described antibiotic layer includes graphene and graphite oxide
At least one of alkene, at least one described adsorption layer are compound comprising graphene, graphene oxide, graphene/metal oxide
Material and graphene/hydroxide composite material at least one.
The metal oxide includes aluminium oxide, ferroso-ferric oxide, silica, magnesia in one of the embodiments,
With at least one of manganese oxide.
In one of the embodiments, the hydroxide include zirconium hydroxide, aluminium hydroxide and magnesium hydroxide at least
It is a kind of.
Several holes at least one described antibiotic layer and the hole on the perforated substrate in one of the embodiments,
Alignment.
In one of the embodiments, at least one described adsorption layer on several holes and at least one described antibiotic layer
Several holes mutually stagger.
At least one described adsorption layer is located at least one described antibiotic layer or described in one of the embodiments,
At least one adsorption layer is located between the perforated substrate and at least one described described antibiotic layer.
At least one described antibiotic layer is functionalized in one of the embodiments,.
In one of the embodiments, wherein at least one functionalization of C-OH, O=C-OH and C-O it is described at least one
Antibiotic layer.
At least one described adsorption layer is functionalized in one of the embodiments,.
In one of the embodiments, wherein at least one functionalization of C-OH, O=C-OH and C-O it is described at least one
Adsorption layer.
The perforated substrate includes filter membrane in one of the embodiments,.
The filter membrane is nanofiltration membrane, one kind of reverse osmosis membrane and ultrafiltration membrane in one of the embodiments,.
The perforated substrate includes at least one of polymer, ceramics and metal in one of the embodiments,.
A kind of filter membrane, comprising:
Perforated substrate；
The first antibiotic layer on the perforated substrate；
First adsorption layer on first antibiotic layer, wherein first antibiotic layer and the first adsorption layer
Equipped with several holes, wherein first antibiotic layer and the first adsorption layer, the first antibiotic layer packet are run through in several holes
At least one of containing graphene and graphene oxide, the first adsorption layer include graphene, graphene oxide, graphene/
Metal oxide composite and graphene/hydroxide composite material at least one.
The perforated substrate includes filter membrane in one of the embodiments,.
The filter membrane is nanofiltration membrane, one kind of reverse osmosis membrane and ultrafiltration membrane in one of the embodiments,.
The perforated substrate includes at least one of polymer, ceramics and metal in one of the embodiments,.
First antibiotic layer is functionalized in one of the embodiments,.
Wherein at least one of C-OH, O=C-OH and C-O are functionalized first antibacterial in one of the embodiments,
Layer.
The first adsorption layer is functionalized in one of the embodiments,.
The wherein at least one functionalization of C-OH, O=C-OH and C-O first absorption in one of the embodiments,
Layer.
The present invention also provides a kind of preparation methods of filter membrane, comprising steps of
S1, perforated substrate is coated or impregnated with using antibiotic layer dispersion liquid；
S2, it is coated or impregnated with the processed substrate of S1 using adsorption layer dispersion liquid, is dried to obtain the filter membrane.
The mass percentage content of two-dimensional material is in the antibiotic layer dispersion liquid in one of the embodiments,
0.05%-6%.
The mass percentage content of two-dimensional material is 0.5%- in the antibiotic layer dispersion liquid in one of the embodiments,
4%.
In one of the embodiments, in the adsorption layer dispersion liquid two-dimensional material or modified two-dimensional material quality percentage
It is 0.01%-2% than content.
In one of the embodiments, in the adsorption layer dispersion liquid two-dimensional material or modified two-dimensional material quality percentage
It is 0.1%-1% than content.
The temperature of the drying is 40 DEG C -60 DEG C in one of the embodiments, and the time of the drying is 2-
120min。
The temperature of the drying is 45 DEG C -55 DEG C in one of the embodiments, and the time of the drying is 20-
100min。
The present invention also provides described in one kind filter membrane or the obtained filter membrane of the preparation method in substance point
From the application in filtering.
The present invention also provides a kind of filters, comprising:
The filter membrane or the obtained filter membrane of the preparation method；
Shell, the shell have the cavity for accommodating fluid, and the cavity has at least one fluid inlet and at least one
A filtered fluid outlet, the filter membrane are mounted in the cavity.
The fluid is aqueous solution in one of the embodiments,.
Above-mentioned filter membrane by substrate be equipped with adsorption layer, the adsorption layer be graphene, graphene oxide, graphene/
Metal oxide composite and graphene/hydroxide composite material at least one, can be very good by above-mentioned material
Adsorb heavy metal and impurity, flow into antibiotic layer by the water of adsorption layer, the antibiotic layer be in graphene and graphene oxide extremely
Few one kind, graphene or graphene oxide using active function groups formed sharp piece edge to bacterium cause physical damnification or
Reactive oxygen species are generated to induced oxidation stress reaction, microbial activity are destroyed, to remove the bacterium in water or virus.
Detailed description of the invention
Fig. 1 is the schematic diagram of filter membrane disclosed by the invention；
Fig. 2 is the schematic diagram of filter disclosed by the invention；
Number mark explanation:
1 perforated substrate, 2 antibiotic layers, 3 adsorption layers, 4, shell, 41 fluid inlets, 42 fluid outlets.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
As shown in Figure 1, a kind of filter membrane, comprising: perforated substrate 1；At least one antibiotic layer 2 on perforated substrate 1
With at least one adsorption layer 3, wherein at least one antibiotic layer 2 and at least one adsorption layer 3 are equipped with several holes, at least one
Antibiotic layer 2 includes at least one of graphene and graphene oxide, at least one adsorption layer 3 includes graphene, graphite oxide
Alkene, graphene/metal oxide composite material and graphene/hydroxide composite material at least one.
Above-mentioned filter membrane by substrate be equipped with adsorption layer, the adsorption layer be graphene, graphene oxide, graphene/
Metal oxide composite and graphene/hydroxide composite material at least one, can be very good by above-mentioned material
Adsorb heavy metal and impurity, flow into antibiotic layer by the water of adsorption layer, the antibiotic layer be in graphene and graphene oxide extremely
Few one kind, graphene or graphene oxide using active function groups formed sharp piece edge to bacterium cause physical damnification or
Reactive oxygen species are generated to induced oxidation stress reaction, microbial activity are destroyed, to remove the bacterium in water or virus.
Optionally, metal oxide includes at least the one of aluminium oxide, ferroso-ferric oxide, silica, magnesia and manganese oxide
Kind.In the present embodiment, metal oxide is preferably aluminium oxide.
Optionally, hydroxide includes at least one of zirconium hydroxide, aluminium hydroxide and magnesium hydroxide.In the present embodiment
In, hydroxide is preferably magnesium hydroxide.
In a preferred embodiment, several holes at least one antibiotic layer 2 are aligned with the hole on perforated substrate 1.
It can guarantee that the flow of fluid can be bigger in this way, meet demand.
In a further advantageous embodiment, at least one adsorption layer 3 several holes with it is several at least one antibiotic layer 2
A hole mutually staggers.In this way, the fluid for flowing through adsorption layer 3 can be enable to reach the mesh for inhibiting bacterial activity by antibiotic layer
's.
In a preferred embodiment, at least one adsorption layer 3 is located at least one described antibiotic layer 2, or at least one
A adsorption layer 3 is located between at least one the described antibiotic layer 2 of perforated substrate 1.
In a preferred embodiment, in order to make antibiotic layer have certain physical behavior, at least one antibiotic layer 2 is official
Energyization.
Specifically, wherein at least one of C-OH, O=C-OH and C-O are functionalized at least one antibiotic layer 2.
In a preferred embodiment, in order to make antibiotic layer have certain physical behavior, at least one adsorption layer 3 is official
Energyization.
Specifically, wherein at least one of C-OH, O=C-OH and C-O is functionalized at least one described adsorption layer.
In a preferred embodiment, perforated substrate 1 includes filter membrane.
Specifically, the filter membrane is nanofiltration membrane, one kind of reverse osmosis membrane and ultrafiltration membrane.
Further, perforated substrate 1 includes at least one of polymer, ceramics and metal.
In a preferred embodiment, a kind of filter membrane, comprising: perforated substrate 1；First on perforated substrate 1 is anti-
Bacterium layer；First adsorption layer on the first antibiotic layer, wherein the first antibiotic layer and first adsorption layer are equipped with several holes,
In, the first antibiotic layer and first adsorption layer are run through in several holes, the first antibiotic layer include in graphene and graphene oxide extremely
Few one kind, first adsorption layer include graphene, graphene oxide, graphene/metal oxide composite material and graphene/hydrogen-oxygen
At least one of compound composite material.
In a preferred embodiment, perforated substrate 1 includes filter membrane.
Specifically, filter membrane is nanofiltration membrane, one kind of reverse osmosis membrane and ultrafiltration membrane.
Further, perforated substrate 1 includes at least one of polymer, ceramics and metal.
In a preferred embodiment, in order to make antibiotic layer have certain physical behavior, the first antibiotic layer is functionalization
's.
Specifically, wherein at least one of C-OH, O=C-OH and C-O is functionalized the first antibiotic layer.
In a preferred embodiment, in order to make antibiotic layer have certain physical behavior, first adsorption layer is functionalization
's.
Specifically, wherein at least one of C-OH, O=C-OH and C-O are functionalized the first adsorption layer.
The present invention also provides a kind of preparation methods of filter membrane, comprising steps of
S1, perforated substrate is coated or impregnated with using antibiotic layer dispersion liquid；
Optionally, in antibiotic layer dispersion liquid two-dimensional material mass percentage content be 0.05%, 0.1%, 0.2%,
0.3%, 0.4%, 0.5%, 1%, 2%, 3%, 4%, 5%, 0.6%.
S2, it is coated or impregnated with the processed substrate of S1 using adsorption layer dispersion liquid, is dried to obtain filter membrane.
Optionally, in adsorption layer dispersion liquid the mass percentage content of two-dimensional material or modified two-dimensional material be 0.01%,
0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 1%, 2%.
The temperature of above-mentioned drying is 40 DEG C -60 DEG C, and the dry time is 2-120min.
The temperature of the drying is 45 DEG C -55 DEG C in one of the embodiments, and the time of the drying is 20-
100min。
As shown in Fig. 2, the present invention also provides a kind of filters, comprising:
Preparation method described in filter membrane described in any of the above-described embodiment or any of the above-described embodiment is obtained
Filter membrane；
Shell 41, shell 41 have the cavity for accommodating fluid, and cavity has at least one fluid inlet 41 and at least one
Filtered fluid outlet 42, filter membrane is mounted in cavity.
Further, above-mentioned fluid is aqueous solution.
Antibacterial test
In antibacterial test, the coliform of about 0.6 million Colony Forming Unit (CFU) is introduced in the water of inflow.
About after ten minutes, coliform test is carried out to filtered water outlet.By the coliform of 0.6 million CPU of others with difference
Time interval be introduced into water flow, four repetitions about carried out to the bacterial pollutant level of water outlet after ten minutes survey waiting
Examination.The results are shown in Table 1.
Table 1
| Inject sample and time | Flow (L/min) | Total coliform (clump count/cm3) |
| 0.6 million CFU, 14:00 | 1.66 | |
| 0.6 million CFU, 14:10 | 1.72 | 0 |
| 0.6 million CFU, 14:20 | 1.44 | 0 |
| 0.6 million CFU, 14:30 | 1.54 | 0 |
| 0.6 million CFU, 14:40 | 1.81 | 0 |
Bacterium test is carried out to only substrate, common antibiotic layer (not being graphene or Graphene derivative).In test
Each sample immerses in 100 milliliters of water of every milliliter of coliform containing 5,000CFU.The results are shown in Table 2.
Table 2
From above-mentioned Tables 1 and 2 it is found that common antibiotic layer can reduce the activity of bacterium, but Graphene antibiosis layer is compared, effect
Fruit is decreased obviously.Therefore, the activity of bacterium can be significantly reduced in the antibiotic layer of graphene or graphene oxide.
Penetration testing
Antibiotic layer, adsorption layer permeability can be expressed according to pure water permeability.It can be for example using sealing end formula stirring pool
(Sterlitech) permeability of measurement antibiotic layer disclosed in this invention, adsorption layer.
Antibiotic layer, adsorption layer permeability can be influenced by the amount of for example existing polymer.Therefore, in many aspects,
Polymer exists with the amount of about 20 weight % and antibiotic layer, adsorption layer have the pure water permeability less than about 4.00gfd/psi.
On the other hand, polymer exists with the amount of about 20 weight % and antibiotic layer, adsorption layer have less than about 3.50gfd/psi
Pure water permeability.On the other hand, polymer has with the amount presence of about 20 weight % and antibiotic layer, adsorption layer and is less than
The pure water permeability of about 3.00gfd/psi.On the other hand, polymer exist with the amount of about 20 weight % and antibiotic layer,
Adsorption layer has the pure water permeability less than about 3.50gfd/psi.In certain embodiments, polymer is with about 20 weight %'s
Amount exists and film to have is about 1.0gfd/psi, about 2.1gfd/psi, about 2.2gfd/psi, about 2.3gfd/psi, about
2.4gfd/psi, about 2.5gfd/psi, about 2.6gfd/psi, about 2.7gfd/psi, about 2.8gfd/psi, about 2.9gfd/psi,
Or the pure water permeability of about 3.0gfd/psi.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (31)
1. filter membrane characterized by comprising
Perforated substrate；
At least one antibiotic layer and at least one adsorption layer on the perforated substrate, wherein at least one described antibacterial
Layer and at least one described adsorption layer are equipped with several holes, at least one described antibiotic layer includes in graphene and graphene oxide
At least one, at least one described adsorption layer include graphene, graphene oxide, graphene/metal oxide composite material
With graphene/hydroxide composite material at least one.
2. filter membrane according to claim 1, which is characterized in that the metal oxide includes aluminium oxide, four oxidations three
At least one of iron, silica, magnesia and manganese oxide.
3. filter membrane according to claim 1, which is characterized in that the hydroxide includes zirconium hydroxide, aluminium hydroxide
With at least one of magnesium hydroxide.
4. filter membrane according to claim 1, which is characterized in that several holes and institute at least one described antibiotic layer
State the hole alignment on perforated substrate.
5. filter membrane according to claim 1, feature is being, several holes and institute at least one described adsorption layer
Several holes at least one antibiotic layer are stated to mutually stagger.
6. filter membrane according to claim 1, which is characterized in that at least one described adsorption layer be located at it is described at least one
On antibiotic layer or at least one described adsorption layer is located between the perforated substrate and at least one described described antibiotic layer.
7. filter membrane according to claim 1, which is characterized in that at least one described antibiotic layer is functionalized.
8. filter membrane according to claim 7, which is characterized in that wherein at least one official of C-OH, O=C-OH and C-O
At least one antibiotic layer described in energyization.
9. filter membrane according to claim 1, which is characterized in that at least one described adsorption layer is functionalized.
10. filter membrane according to claim 9, which is characterized in that wherein at least one official of C-OH, O=C-OH and C-O
At least one adsorption layer described in energyization.
11. filter membrane according to claim 1, which is characterized in that the perforated substrate includes filter membrane.
12. filter membrane according to claim 11, which is characterized in that the filter membrane is nanofiltration membrane, reverse osmosis membrane and surpasses
One kind of filter membrane.
13. filter membrane according to claim 1, which is characterized in that the perforated substrate includes polymer, ceramics and metal
At least one of.
14. filter membrane characterized by comprising
Perforated substrate；
The first antibiotic layer on the perforated substrate；
First adsorption layer on first antibiotic layer, wherein first antibiotic layer and the first adsorption layer are equipped with
Several holes, wherein first antibiotic layer and the first adsorption layer are run through in several holes, and first antibiotic layer includes stone
At least one of black alkene and graphene oxide, the first adsorption layer include graphene, graphene oxide, graphene/metal
Oxide composite and graphene/hydroxide composite material at least one.
15. filter membrane according to claim 14, which is characterized in that the perforated substrate includes filter membrane.
16. filter membrane according to claim 15, which is characterized in that the filter membrane is nanofiltration membrane, reverse osmosis membrane and surpasses
One kind of filter membrane.
17. filter membrane according to claim 14, which is characterized in that the perforated substrate includes polymer, ceramics and gold
At least one of belong to.
18. filter membrane according to claim 14, which is characterized in that first antibiotic layer is functionalized.
19. filter membrane according to claim 18, which is characterized in that the wherein at least one of C-OH, O=C-OH and C-O
It is functionalized first antibiotic layer.
20. filter membrane according to claim 14, which is characterized in that the first adsorption layer is functionalized.
21. filter membrane according to claim 20, which is characterized in that the wherein at least one of C-OH, O=C-OH and C-O
It is functionalized the first adsorption layer.
22. a kind of preparation method of filter membrane, which is characterized in that comprising steps of
S1, perforated substrate is coated or impregnated with using antibiotic layer dispersion liquid；
S2, it is coated or impregnated with the processed substrate of S1 using adsorption layer dispersion liquid, is dried to obtain the filter membrane.
23. preparation method according to claim 22, which is characterized in that the matter of two-dimensional material in the antibiotic layer dispersion liquid
Amount degree is 0.05%-6%.
24. preparation method according to claim 22, which is characterized in that the matter of two-dimensional material in the antibiotic layer dispersion liquid
Amount degree is 0.5%-4%.
25. preparation method according to claim 22, which is characterized in that two-dimensional material or change in the adsorption layer dispersion liquid
Property two-dimensional material mass percentage content be 0.01%-2%.
26. preparation method according to claim 22, which is characterized in that two-dimensional material or change in the adsorption layer dispersion liquid
Property two-dimensional material mass percentage content be 0.1%-1%.
27. preparation method according to claim 22, which is characterized in that the temperature of the drying is 40 DEG C -60 DEG C, described
The dry time is 2-120min.
28. preparation method according to claim 22, which is characterized in that the temperature of the drying is 45 DEG C -55 DEG C, described
The dry time is 20-100min.
29. such as the described in any item filter membranes of claim 1 to 21 or the described in any item preparation method institutes of claim 21-28
Application of the obtained filter membrane in substance separating and filtering.
30. a kind of filter characterized by comprising
The described in any item filter membranes of claim 1-21 or the described in any item preparation methods of claim 21-28 are obtained
Filter membrane；
Shell, the shell have accommodate fluid cavity, the cavity have at least one fluid inlet and at least one
The fluid outlet of filtering, the filter membrane are mounted in the cavity.
31. filter according to claim 31, which is characterized in that the fluid is aqueous solution.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202100004457A1 (en) * | 2021-02-25 | 2022-08-25 | Eni Spa | PROCESS FOR PREPARING AN ANTIMICROBIAL COATING COMPOSITION, ANTIMICROBIAL COATING COMPOSITION, AND THEIR USE TO IMPROVE ANTIMICROBIAL PROPERTIES ON THE SURFACE OF A SUBSTRATE |
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| WO2016011124A1 (en) * | 2014-07-17 | 2016-01-21 | The Research Foundation For The State University Of New York | Porous graphene based composite membranes for nanofiltration, desalination, and pervaporation |
| WO2017180135A1 (en) * | 2016-04-14 | 2017-10-19 | Lockheed Martin Corporation | Membranes with tunable selectivity |
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| IT202100004457A1 (en) * | 2021-02-25 | 2022-08-25 | Eni Spa | PROCESS FOR PREPARING AN ANTIMICROBIAL COATING COMPOSITION, ANTIMICROBIAL COATING COMPOSITION, AND THEIR USE TO IMPROVE ANTIMICROBIAL PROPERTIES ON THE SURFACE OF A SUBSTRATE |
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