CN108854594A - A kind of graphene oxide composite nanometer film and preparation method for air cleaning - Google Patents
A kind of graphene oxide composite nanometer film and preparation method for air cleaning Download PDFInfo
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- CN108854594A CN108854594A CN201810673940.5A CN201810673940A CN108854594A CN 108854594 A CN108854594 A CN 108854594A CN 201810673940 A CN201810673940 A CN 201810673940A CN 108854594 A CN108854594 A CN 108854594A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
-
- 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
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- 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
- B01D69/12—Composite membranes; Ultra-thin membranes
-
- 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
- B01D71/021—Carbon
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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
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/34—Polyvinylidene fluoride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/39—Electrospinning
Abstract
The present invention relates to air-filtering membrane fields, disclose a kind of graphene oxide composite nanometer film and preparation method for air cleaning.Including following preparation process：（1）Kynoar is added to N,N-dimethylformamide, spinning solution is made；（2）Bathtub device is added in the fiber heat-traction device of electrostatic spinning；（3）Graphene oxide is dispersed in N-Methyl pyrrolidone, graphene oxide bath foam is made；（4）Bath foam is added in bathtub device；（5）Electrostatic spinning is carried out under the irradiation of gamma-rays Co60, and graphene oxide/polyvinylidene fluoride composite nanometer film is made.Graphite oxide is dispersed in polyvinylidene fluoride surface by electrostatic spinning heat-traction by the present invention, and the distribution of fiber diameters range of preparation is relatively narrow, and diameter dimension is uniform, strong to the capturing ability of particulates, fabulous for having the effect of when air filtration.
Description
Technical field
The present invention relates to air-filtering membrane fields, disclose a kind of graphene oxide composite nanometer film for air cleaning
And preparation method.
Background technique
Currently, environmental pollution is increasingly severe, especially more very, the harm of haze bring has caused full generation for air pollution
The concern on boundary, and most effective air purification method is then filtering, therefore the research and development of air filting material is even more to become
Research emphasis.But traditional air filtration materials such as synthetic fibers, the glass fibres such as current asbestos fibre, polyester and polyacrylonitrile
Material only could have effective filtering greater than 0.3 μm of particle to partial size, and the particle smaller to partial size and pathogen are then almost
In vain, therefore, the filtering material of molecule is had become a hot topic of research.
In terms of the preparation of the fibrous filter of filtering molecule, electrostatic spinning technique has been attracted wide attention.Due to
Electrostatic spinning process is simple, and can continuously prepare, with electrostatic spinning technique prepare fiber have diameter is small, aperture is small,
The advantages that porosity is high, fiber homogeneity is good makes it show huge application prospect in the fields such as filtering and protection.Meanwhile
The material of fibrous filter is also to influence the key of filter effect.
In the material of fibrous filter, graphene is the atomic crystal material of monoatomic layer two dimension honeycomb lattice structure,
Thickness is small, but has very good physicochemical properties, and the thermal conductivity and tensile property of graphene are prominent, large specific surface area,
Electric property is excellent, while also having certain antibacterial activity, but graphene is easily reunited.Graphene oxide is graphene
A kind of derivative has good hydrophily, higher specific surface energy and mechanical performance, oxygen-containing function rich in
Group, can be dispersed stably in most polar organic solvents, therefore can be compound with multiple polymers matrix.Preparation at present
There are many dilute method of graphite oxide, and the graphene oxide form that chemical stripping method obtains is closer to single layer structure, and this method
Advantage of lower cost, raw material are easy to get, thus cause the extensive concern of people.
Chinese invention patent application number 201710736592.7 discloses a kind of air filtration of functionalization graphene modification
The nanofiber composite filter membrane of film and preparation method thereof and efficient low-resistance, the composite filter membrane include：Non-woven fabrics base support layer,
Electrospun composite fibers compacted zone two parts, functionalization graphene have adjusted the structure of dense separation layers, fiber and beading knot
Structure generates molecular slip effect, to significantly reduce filter membrane air drag.In addition, the high surface area of functionalization graphene and rich
Rich surface functional group improves the air filter efficiency of filter membrane.Preparation method is as follows：Configure the function fossil of various concentration
Black alkene and macromolecule mixed solution prepare nanofiber composite filter membrane using method of electrostatic spinning using non-woven fabrics as substrate is received,
The filter membrane can cross to efficient low-resistance the tiny particles contents such as smog, pollen, PM2.5 in air filtering, realize air cleaning, can also be with
For personal protection device (such as mask), it is beneficial to health.
Chinese invention patent application number 201610092707.9 discloses a kind of preparation of air filtration graphene fiber film
Method belongs to fibrous material technical field.The preparation method by graphene dispersion solution preparation, viscosify solution preparation,
Graphene fiber film is prepared into after preparation, centrifugal spinning and the film forming of graphene spinning solution, the post-processing of graphene fiber film.It should
Invent preparation graphene fiber film in, graphene present orientation fibrous arrangement, it is no cladding and completely it is exposed in air,
It is relied on the polyvinyl alcohol nano mechanics bracket by hydrogen bond force building simultaneously, graphene fiber film and air contact area
Greatly, be conducive to the realization of air filtering function.The preparation method simple process, equipment requirement is low, convenient operation and control, is easy to real
Existing industrialized production, is not necessarily to special installation.
According to above-mentioned, traditional material in existing scheme for the air filtration particle smaller to partial size can not be filtered,
And the technology that graphene prepares air filting material for functional fibre is immature, the distribution of fiber diameters of preparation is wide, and fiber is straight
Diameter size is uneven, leads to poor filtration effect, affects application of the graphene fiber in terms of air filting material, and the present invention mentions
Go out a kind of graphene oxide composite nanometer film and preparation method for air cleaning, can effectively solve above-mentioned technical problem.
Summary of the invention
It can not effectively be filtered using the material of the wider air filtration particle smaller to partial size at present, and graphene is used
When functional fibre prepares air filting material, it is immature that there are technologies of preparing, and distribution of fiber diameters is wide, and fiber diameter size is not
Uniformly, the shortcomings that leading to poor filtration effect.
To solve the above problems, the present invention uses following technical scheme：
A kind of preparation method of the graphene oxide composite nanometer film for air cleaning, the detailed process of preparation are：
（1）First Kynoar is added in n,N-Dimethylformamide, magnetic agitation is then carried out, spinning solution is made；
（2）In the fiber heat-traction device of electrostatic spinning, a bathtub device is added；
（3）Graphene oxide is dispersed in N-Methyl pyrrolidone, graphene oxide bath foam is made；
（4）By step（3）Step is added in graphene oxide bath foam obtained（2）Bathtub device in；
（5）Electrostatic spinning is carried out under the irradiation of gamma-rays Co60, makes to pass rapidly through oxidation when polyvinylidene fluoride heat-traction
Graphene bath foam makes graphene oxide be grafted on polyvinylidene fluoride surface, forms stable, evenly dispersed surface layer, is made
Graphene oxide/polyvinylidene fluoride composite nanometer film.
Preferably, step（1）In the spinning solution, by weight, wherein：10 parts of Kynoar, N, N- dimethyl
90 parts of formamide.
Preferably, step（1）The revolving speed of the magnetic agitation is 200 ~ 400r/min, and the time is 7 ~ 10h.
Preferably, step（3）In the graphene oxide bath foam, by weight, wherein：15 ~ 22 parts of graphene oxide,
78 ~ 85 parts of N-Methyl pyrrolidone.
Preferably, step（5）The gamma-ray irradiation dose is 1000 ~ 1500Gy.
Preferably, step（5）The fixed voltage of the electrostatic spinning is 8 ~ 12kV, and solution flow velocity is 0.4 ~ 0.6mL/h, is connect
Receiving distance is 18 ~ 22cm.Using conventional stainless steel roller bearing as reception device.
Preferably, step（5）The linear velocity that passes through passed rapidly through is 0.2 ~ 0.4m/s.
A kind of graphene oxide composite nanometer film for air cleaning prepared by the above method, using in electrostatic
So that PVDF fiber is passed rapidly through the bath foam containing graphene oxide during spinning heat-traction, and uses gamma-rays Co60 in the process
Irradiation, makes graphene oxide be grafted on PVDF fiber surface, and is formed and stablized on PVDF fiber, evenly dispersed surface layer,
Graphene oxide it is evenly dispersed so that preparation graphene oxide/polyvinylidene fluoride will not be because of the portion of graphene oxide
Stacking manufactures into concave-convex unevenness, so that the distribution of fiber diameters range of preparation is relatively narrow, diameter dimension is uniform；In air filting material
In, the uniform graphene oxide of diameter dimension/polyvinylidene fluoride defect is less, and give particle more collision opportunity,
The capturing ability to particle is increased, to improve its filter capacity, effectively prevents graphite in existing air filting material
Alkenyl distribution of fiber diameters unevenness leads to the defect of poor filtration effect.
The present invention provides a kind of graphene oxide composite nanometer films and preparation method for air cleaning, with existing skill
Art is compared, and the feature and excellent effect protruded is：
1, it proposes graphene oxide is grafted on polyvinylidene fluoride preparation to be used for the graphene oxide of air cleaning and answer
The method for closing nanometer film.
2, graphite oxide is dispersed in by polyvinylidene fluoride surface, the fibre diameter of preparation by electrostatic spinning heat-traction
Distribution is relatively narrow, and diameter dimension is uniform, and has played the excellent characteristics of graphene oxide well, effectively prevents graphite
Alkenyl distribution of fiber diameters unevenness leads to the defect of poor filtration effect.
3, the uniform graphene oxide of diameter dimension prepared by the present invention/polyvinylidene fluoride defect is few, in air mistake
It can give molecule particle more collision opportunity when filter, increase the capturing ability to particle, effectively increase air
Filter capacity.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
（1）First Kynoar is added in n,N-Dimethylformamide, magnetic agitation is then carried out, spinning solution is made；It spins
In silk liquid, by weight, wherein：10 parts of Kynoar, 90 parts of N,N-dimethylformamide.The revolving speed of magnetic agitation is
200r/min, time 10h.
（2）In the fiber heat-traction device of electrostatic spinning, a bathtub device is added；
（3）Graphene oxide is dispersed in N-Methyl pyrrolidone, graphene oxide bath foam is made；Graphene oxide bath foam
In, by weight, wherein：15 parts of graphene oxide, 85 parts of N-Methyl pyrrolidone.
（4）By step（3）Step is added in graphene oxide bath foam obtained（2）Bathtub device in；
（5）Electrostatic spinning is carried out under the irradiation of gamma-rays Co60, makes to pass rapidly through oxidation when polyvinylidene fluoride heat-traction
Graphene bath foam makes graphene oxide be grafted on polyvinylidene fluoride surface, stable, evenly dispersed surface layer is formed, with not
Rust steel roller bearing is reception device, and graphene oxide/polyvinylidene fluoride composite nanometer film is made.Gamma-ray irradiation dose is
1000Gy.The fixed voltage of electrostatic spinning is 12kV, and solution flow velocity is 0.4mL/h, and receiving distance is 22cm.What is passed rapidly through wears
Crossing linear velocity is 0.2m/s.
Embodiment 2
（1）First Kynoar is added in n,N-Dimethylformamide, magnetic agitation is then carried out, spinning solution is made；It spins
In silk liquid, by weight, wherein：10 parts of Kynoar, 90 parts of N,N-dimethylformamide.The revolving speed of magnetic agitation is
400r/min, time 7h.
（2）In the fiber heat-traction device of electrostatic spinning, a bathtub device is added；
（3）Graphene oxide is dispersed in N-Methyl pyrrolidone, graphene oxide bath foam is made；Graphene oxide bath foam
In, by weight, wherein：22 parts of graphene oxide, 78 parts of N-Methyl pyrrolidone.
（4）By step（3）Step is added in graphene oxide bath foam obtained（2）Bathtub device in；
（5）Electrostatic spinning is carried out under the irradiation of gamma-rays Co60, makes to pass rapidly through oxidation when polyvinylidene fluoride heat-traction
Graphene bath foam makes graphene oxide be grafted on polyvinylidene fluoride surface, stable, evenly dispersed surface layer is formed, with not
Rust steel roller bearing is reception device, and graphene oxide/polyvinylidene fluoride composite nanometer film is made.Gamma-ray irradiation dose is
1500Gy.The fixed voltage of electrostatic spinning is 8kV, and solution flow velocity is 0.6mL/h, and receiving distance is 18cm.What is passed rapidly through wears
Crossing linear velocity is 0.4m/s.
Embodiment 3
（1）First Kynoar is added in n,N-Dimethylformamide, magnetic agitation is then carried out, spinning solution is made；It spins
In silk liquid, by weight, wherein：10 parts of Kynoar, 90 parts of N,N-dimethylformamide.The revolving speed of magnetic agitation is
300r/min, time 8h.
（2）In the fiber heat-traction device of electrostatic spinning, a bathtub device is added；
（3）Graphene oxide is dispersed in N-Methyl pyrrolidone, graphene oxide bath foam is made；Graphene oxide bath foam
In, by weight, wherein：20 parts of graphene oxide, 80 parts of N-Methyl pyrrolidone.
（4）By step（3）Step is added in graphene oxide bath foam obtained（2）Bathtub device in；
（5）Electrostatic spinning is carried out under the irradiation of gamma-rays Co60, makes to pass rapidly through oxidation when polyvinylidene fluoride heat-traction
Graphene bath foam makes graphene oxide be grafted on polyvinylidene fluoride surface, stable, evenly dispersed surface layer is formed, with not
Rust steel roller bearing is reception device, and graphene oxide/polyvinylidene fluoride composite nanometer film is made.Gamma-ray irradiation dose is
1200Gy.The fixed voltage of electrostatic spinning is 10kV, and solution flow velocity is 0.5mL/h, and receiving distance is 20cm.What is passed rapidly through wears
Crossing linear velocity is 0.3m/s.
Embodiment 4
（1）First Kynoar is added in n,N-Dimethylformamide, magnetic agitation is then carried out, spinning solution is made；It spins
In silk liquid, by weight, wherein：10 parts of Kynoar, 90 parts of N,N-dimethylformamide.The revolving speed of magnetic agitation is
250r/min, time 8h.
（2）In the fiber heat-traction device of electrostatic spinning, a bathtub device is added；
（3）Graphene oxide is dispersed in N-Methyl pyrrolidone, graphene oxide bath foam is made；Graphene oxide bath foam
In, by weight, wherein：18 parts of graphene oxide, 82 parts of N-Methyl pyrrolidone.
（4）By step（3）Step is added in graphene oxide bath foam obtained（2）Bathtub device in；
（5）Electrostatic spinning is carried out under the irradiation of gamma-rays Co60, makes to pass rapidly through oxidation when polyvinylidene fluoride heat-traction
Graphene bath foam makes graphene oxide be grafted on polyvinylidene fluoride surface, stable, evenly dispersed surface layer is formed, with not
Rust steel roller bearing is reception device, and graphene oxide/polyvinylidene fluoride composite nanometer film is made.Gamma-ray irradiation dose is
1300Gy.The fixed voltage of electrostatic spinning is 11kV, and solution flow velocity is 0.4mL/h, and receiving distance is 22cm.What is passed rapidly through wears
Crossing linear velocity is 0.2m/s.
Embodiment 5
（1）First Kynoar is added in n,N-Dimethylformamide, magnetic agitation is then carried out, spinning solution is made；It spins
In silk liquid, by weight, wherein：10 parts of Kynoar, 90 parts of N,N-dimethylformamide.The revolving speed of magnetic agitation is
350r/min, time 10h.
（2）In the fiber heat-traction device of electrostatic spinning, a bathtub device is added；
（3）Graphene oxide is dispersed in N-Methyl pyrrolidone, graphene oxide bath foam is made；Graphene oxide bath foam
In, by weight, wherein：22 parts of graphene oxide, 78 parts of N-Methyl pyrrolidone.
（4）By step（3）Step is added in graphene oxide bath foam obtained（2）Bathtub device in；
（5）Electrostatic spinning is carried out under the irradiation of gamma-rays Co60, makes to pass rapidly through oxidation when polyvinylidene fluoride heat-traction
Graphene bath foam makes graphene oxide be grafted on polyvinylidene fluoride surface, stable, evenly dispersed surface layer is formed, with not
Rust steel roller bearing is reception device, and graphene oxide/polyvinylidene fluoride composite nanometer film is made.Gamma-ray irradiation dose is
1500Gy.The fixed voltage of electrostatic spinning is 8kV, and solution flow velocity is 0.45mL/h, and receiving distance is 22cm.What is passed rapidly through wears
Crossing linear velocity is 0.4m/s.
Embodiment 6
（1）First Kynoar is added in n,N-Dimethylformamide, magnetic agitation is then carried out, spinning solution is made；It spins
In silk liquid, by weight, wherein：10 parts of Kynoar, 90 parts of N,N-dimethylformamide.The revolving speed of magnetic agitation is
400r/min, time 7h.
（2）In the fiber heat-traction device of electrostatic spinning, a bathtub device is added；
（3）Graphene oxide is dispersed in N-Methyl pyrrolidone, graphene oxide bath foam is made；Graphene oxide bath foam
In, by weight, wherein：15 parts of graphene oxide, 85 parts of N-Methyl pyrrolidone.
（4）By step（3）Step is added in graphene oxide bath foam obtained（2）Bathtub device in；
（5）Electrostatic spinning is carried out under the irradiation of gamma-rays Co60, makes to pass rapidly through oxidation when polyvinylidene fluoride heat-traction
Graphene bath foam makes graphene oxide be grafted on polyvinylidene fluoride surface, stable, evenly dispersed surface layer is formed, with not
Rust steel roller bearing is reception device, and graphene oxide/polyvinylidene fluoride composite nanometer film is made.Gamma-ray irradiation dose is
1000Gy.The fixed voltage of electrostatic spinning is 10kV, and solution flow velocity is 0.5mL/h, and receiving distance is 20cm.What is passed rapidly through wears
Crossing linear velocity is 0.3m/s.
Comparative example 1
（1）First Kynoar is added in n,N-Dimethylformamide, magnetic agitation is then carried out, spinning solution is made；It spins
In silk liquid, by weight, wherein：10 parts of Kynoar, 90 parts of N,N-dimethylformamide.The revolving speed of magnetic agitation is
400r/min, time 7h.
（2）In the fiber heat-traction device of electrostatic spinning, a bathtub device is added；
（3）Graphene oxide is dispersed in N-Methyl pyrrolidone, graphene oxide bath foam is made；Graphene oxide bath foam
In, by weight, wherein：15 parts of graphene oxide, 85 parts of N-Methyl pyrrolidone.
（4）By step（3）Step is added in graphene oxide bath foam obtained（2）Bathtub device in；
（5）Make to pass rapidly through graphene oxide bath foam when polyvinylidene fluoride heat-traction, is grafted on graphene oxide poly- inclined
Vinyl fluoride fiber surface forms stable, evenly dispersed surface layer, using stainless steel roller bearing as reception device, obtained graphene oxide/
Polyvinylidene fluoride composite nanometer film.The fixed voltage of electrostatic spinning is 10kV, and solution flow velocity is 0.5mL/h, receives distance
For 20cm.The linear velocity that passes through passed rapidly through is 0.3m/s.
Comparative example 1 is not grafted using the irradiation of gamma-rays Co60, so that graphene oxide and fiber are not connected firmly
Gu and uneven.
Comparative example 2
Graphene oxide is directly added into spinning solution by comparative example 2, and spinning is carried out together with polyvinylidene fluoride, remaining technique
It is consistent with embodiment 6, graphene oxide/Kynoar composite nanometer film is made.
The obtained composite nanometer film of embodiment 1-6, comparative example 1-2 is used for the disposable filtering to pollution air, to sentence
Its fixed effect to purification air.Concrete operations are that air-source is polluted in prefabricated load, keep air initial contamination source PM2.5 dense
Degree is 90 μ g/m3, 175 μ g/m of PM10 concentration3、SO2Concentration 60mg/m3, it tests as room temperature, gas filtration pressure is 0.01MPa,
Test filtered air PM2.5, PM10, a SO2Concentration, such as table 1.
Table 1：
Claims (8)
1. a kind of preparation method of the graphene oxide composite nanometer film for air cleaning, which is characterized in that preparation it is specific
Process is：
（1）First Kynoar is added in n,N-Dimethylformamide, magnetic agitation is then carried out, spinning solution is made；
（2）In the fiber heat-traction device of electrostatic spinning, a bathtub device is added；
（3）Graphene oxide is dispersed in N-Methyl pyrrolidone, graphene oxide bath foam is made；
（4）By step（3）Step is added in graphene oxide bath foam obtained（2）Bathtub device in；
（5）Electrostatic spinning is carried out under the irradiation of gamma-rays Co60, makes to pass rapidly through oxidation when polyvinylidene fluoride heat-traction
Graphene bath foam makes graphene oxide be grafted on polyvinylidene fluoride surface, forms stable, evenly dispersed surface layer, is made
Graphene oxide/polyvinylidene fluoride composite nanometer film.
2. a kind of preparation method of the graphene oxide composite nanometer film for air cleaning according to claim 1, special
Sign is：Step（1）In the spinning solution, by weight, wherein：10 parts of Kynoar, N,N-dimethylformamide 90
Part.
3. a kind of preparation method of the graphene oxide composite nanometer film for air cleaning according to claim 1, special
Sign is：Step（1）The revolving speed of the magnetic agitation is 200 ~ 400r/min, and the time is 7 ~ 10h.
4. a kind of preparation method of the graphene oxide composite nanometer film for air cleaning according to claim 1, special
Sign is：Step（3）In the graphene oxide bath foam, by weight, wherein：15 ~ 22 parts of graphene oxide, N- methyl pyrrole
78 ~ 85 parts of pyrrolidone.
5. a kind of preparation method of the graphene oxide composite nanometer film for air cleaning according to claim 1, special
Sign is：Step（5）The gamma-ray irradiation dose is 1000 ~ 1500Gy.
6. a kind of preparation method of the graphene oxide composite nanometer film for air cleaning according to claim 1, special
Sign is：Step（5）The fixed voltage of the electrostatic spinning is 8 ~ 12kV, and solution flow velocity is 0.4 ~ 0.6mL/h, receives distance and is
18~22cm。
7. a kind of preparation method of the graphene oxide composite nanometer film for air cleaning according to claim 1, special
Sign is：Step（5）The linear velocity that passes through passed rapidly through is 0.2 ~ 0.4m/s.
8. a kind of graphene oxide composite Nano for air cleaning that any one of claim 1 ~ 7 the method is prepared
Film.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717966A (en) * | 2019-03-20 | 2020-09-29 | 中国石油化工股份有限公司 | Sulfate reducing bacteria electro-filtration sterilization device, graphene nanofiber non-woven fabric and preparation method of graphene nanofiber non-woven fabric |
| CN111890745A (en) * | 2020-08-04 | 2020-11-06 | 安徽深呼吸纺织科技有限公司 | Waterproof cloth for manufacturing medical mask and preparation method thereof |
| CN112316742A (en) * | 2020-10-22 | 2021-02-05 | 海瑞膜科技南通有限公司 | Preparation method of graphene ultrafiltration membrane |
| CN115121045A (en) * | 2022-05-13 | 2022-09-30 | 广钢气体(广州)有限公司 | Flue gas filtering material and preparation method and application thereof |
-
2018
- 2018-06-27 CN CN201810673940.5A patent/CN108854594A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717966A (en) * | 2019-03-20 | 2020-09-29 | 中国石油化工股份有限公司 | Sulfate reducing bacteria electro-filtration sterilization device, graphene nanofiber non-woven fabric and preparation method of graphene nanofiber non-woven fabric |
| CN111717966B (en) * | 2019-03-20 | 2022-06-17 | 中国石油化工股份有限公司 | Sulfate reducing bacteria electro-filtration sterilization device, graphene nanofiber non-woven fabric and preparation method of graphene nanofiber non-woven fabric |
| CN111890745A (en) * | 2020-08-04 | 2020-11-06 | 安徽深呼吸纺织科技有限公司 | Waterproof cloth for manufacturing medical mask and preparation method thereof |
| CN112316742A (en) * | 2020-10-22 | 2021-02-05 | 海瑞膜科技南通有限公司 | Preparation method of graphene ultrafiltration membrane |
| CN115121045A (en) * | 2022-05-13 | 2022-09-30 | 广钢气体(广州)有限公司 | Flue gas filtering material and preparation method and application thereof |
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