CN107297150A - The preparation method and application of graphene thin wall hollow flat board inoranic membrane - Google Patents
The preparation method and application of graphene thin wall hollow flat board inoranic membrane Download PDFInfo
- Publication number
- CN107297150A CN107297150A CN201710483841.6A CN201710483841A CN107297150A CN 107297150 A CN107297150 A CN 107297150A CN 201710483841 A CN201710483841 A CN 201710483841A CN 107297150 A CN107297150 A CN 107297150A
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- China
- Prior art keywords
- flat board
- graphene
- inoranic membrane
- hollow flat
- thin wall
- 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.)
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Classifications
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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
- B01D69/06—Flat 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
- B01D67/0039—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
- B01D69/08—Hollow fibre 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A kind of preparation method and application of graphene thin wall hollow flat board inoranic membrane, by the way that hollow flat board inoranic membrane is immersed in the mixed liquor containing graphene or graphene oxide, polysulfones, acetic acid dimethylamide and water；Then handled successively through 100~300 DEG C of high-temperature homogenization processing and 20 DEG C~10 DEG C of solidify afterwards, obtain the uniform fine and closely woven graphene flat board inoranic membrane of hole.The present invention can firmly combine graphene oxide or graphene on ceramic membrane, and the effect of the water correction available for two aspects of water treatment and microbubble oxygenic aeration.
Description
Technical field
The present invention relates to a kind of technology of field of water quality purification, specifically a kind of graphene thin wall hollow flat board is inorganic
The preparation method and application of film.
Background technology
UF membrane is that occur in early 20th century, and the separation technology emerged rapidly after 1960s is used as one
Kind pure physical process, with without phase change, energy-conservation, small volume, it is detachable the features such as, be widely used in fermentation, pharmacy, plant and carry
Take, in chemical industry, water treatment process and environmental protection industry (epi).To the organic matter of different compositions, according to the molecular weight of organic matter, selection
Different films, selects suitable membrane process, so as to reach best membrane flux and rejection, and then improves production yield, reduces
Scale of investment and operating cost.
The content of the invention
The present invention for prior art mostly using unlike material realize separation or can only solely by graphene oxide or
Person's graphene is combined on ceramic membrane, and clean-up effect is difficult to the defect for meeting needs, proposes a kind of graphene thin wall hollow flat board
The preparation method and application of inoranic membrane, can firmly combine graphene oxide or graphene on ceramic membrane, and can
Effect for the water correction of two aspects of water treatment and microbubble oxygenic aeration.
The present invention is achieved by the following technical solutions：
The present invention relates to a kind of preparation method of graphene thin wall hollow flat board inoranic membrane, by by hollow flat board inoranic membrane
Immerse in the mixed liquor containing graphene or graphene oxide, polysulfones, acetic acid dimethylamide and water；Then successively through 100~300 DEG C
High-temperature homogenization processing and the processing of -20 DEG C~10 DEG C of solidify afterwards, obtain the uniform fine and closely woven graphene flat board inoranic membrane of hole.
Described hollow flat board inoranic membrane is preferably slab construction, and its wall thickness is less than or equal to 3mm, and aperture is less than or equal to 10 μm
Described hollow flat board inoranic membrane, using but be not limited to ceramics, zeolite, glass or alloy.
Described mixed liquor, by by graphene or graphene oxide, polysulfones, acetic acid dimethylamide and water, according to (1~
5%)：(3~7%)：(25~35%)：Ultrasonic homogeneous is obtained after the part by weight mixing of (53~71%).
Described graphene or the dispersion particle diameter of graphene oxide are less than 0.02 μm.
Described immersion, with it is overall immerse and in room temperature to standing 1~24 hour under the conditions of 80 DEG C.
Described drying, gases at high pressure are preferably first passed through before high-temperature process and rinse surface.
The present invention relates to the graphene thin wall hollow flat board inoranic membrane that the above method is prepared, its wall thickness is less than or equal to
3mm, aperture is less than or equal to 0.1 μm.
The present invention relates to the application of above-mentioned graphene thin wall hollow flat board inoranic membrane, by by graphene thin wall hollow flat board
Inoranic membrane is arranged at the membrane filtration station before the water side of filter or aeration station, realizes the processing to water quality or microbubble
Oxygenic aeration.Technique effect
Compared with prior art, can be by firmly the invention enables (oxidation) graphene is more stable, firmly and Ceramic bond
Be locked on the thin wall ceramic film of thickness within 1mm.Pressure needed for the present invention is penetrating is smaller so as to energy is greatly lowered
Consumption.
Embodiment
Embodiment 1
The specific preparation method of the present embodiment comprises the following steps:
1. mixed liquor is configured：By graphene oxide, polysulfones, acetic acid dimethylamide and water, according to 1%：3%：25%：71%.
2. inoranic membrane is immersed：It is overall to immerse and stand 24 hours at ambient temperature.
3. high-temperature homogenization is handled：Handled through 100 DEG C of high-temperature homogenizations.
4. low-temperature setting is handled：- 20 DEG C of solidify afterwards processing.
The present embodiment prepares 0.08 μm of the average pore size of products obtained therefrom, is 0.05MPa in external pressure, water flux is 0.5m3/
h·m2, water outlet suspended contaminant do not detect.
The reciprocation that the present embodiment passes through high temperature, low temperature so that the stronger combination of graphene oxide on ceramic membrane,
And the heat power of 100 DEG C of temperature causes graphene oxide to be more evenly distributed, what is combined with ceramic membrane is more firm, while taking away more
Many volatile solvents cause hole to be more fully apparent from, and -20 DEG C or so of low temperature make it that the graphene oxide after being combined with ceramic membrane is harder
Solid, it is fine and closely woven.
Embodiment 2
Ceramic membrane can be replaced using arbitrary inoranic membrane, and the specific preparation method of the present embodiment comprises the following steps:
1. mixed liquor is configured：By graphene, polysulfones, acetic acid dimethylamide and water, according to 5%：7%：35%：53%.
2. inoranic membrane is immersed：Overall immersion simultaneously stands 1 hour under the conditions of 80 DEG C.
3. high-temperature homogenization is handled：Handled through 300 DEG C of high-temperature homogenizations.
4. low-temperature setting is handled：10 DEG C of solidify afterwards processing.
The present embodiment prepares 0.04 μm of the average pore size of products obtained therefrom, is 0.05MPa in external pressure, water flux is 0.3m3/
h·m2, water outlet suspended contaminant do not detect.
Above-mentioned specific implementation can by those skilled in the art on the premise of without departing substantially from the principle of the invention and objective with difference
Mode local directed complete set is carried out to it, protection scope of the present invention is defined by claims and not by above-mentioned specific implementation institute
Limit, each implementation in the range of it is by the constraint of the present invention.
Claims (9)
1. a kind of preparation method of graphene thin wall hollow flat board inoranic membrane, it is characterised in that by by hollow flat board inoranic membrane
Immerse in the mixed liquor containing graphene or graphene oxide, polysulfones, acetic acid dimethylamide and water；Then successively through 100~300 DEG C
High-temperature homogenization processing and the processing of -20 DEG C~10 DEG C of solidify afterwards, obtain the uniform fine and closely woven graphene flat board inoranic membrane of hole.
2. according to the method described in claim 1, it is characterized in that, described hollow flat board inoranic membrane is slab construction, its wall thickness
Less than or equal to 3mm, aperture is less than or equal to 10 μm.
3. according to the method described in claim 1, it is characterized in that, described hollow flat board inoranic membrane, using ceramics, zeolite, glass
Glass or alloy.
4. according to the method described in claim 1, it is characterized in that, described mixed liquor, by by graphene or graphene oxide,
Polysulfones, acetic acid dimethylamide and water, according to (1~5%)：(3~7%)：(25~35%)：The part by weight mixing of (53~71%)
Ultrasonic homogeneous is obtained afterwards.
5. method according to claim 4, it is characterized in that, the dispersion particle diameter of graphene or graphene oxide after ultrasonic homogeneous
Less than 0.02 μm.
6. according to the method described in claim 1, it is characterized in that, described immersion integrally immerses mixed with hollow flat board inoranic membrane
Close in liquid and stand 1~24 hour in room temperature under the conditions of 80 DEG C.
7. according to the method described in claim 1, it is characterized in that, described drying first passes through gases at high pressure before high-temperature process
Rinse surface.
8. a kind of graphene thin wall hollow flat board inoranic membrane prepared according to any of the above-described claim methods described, it is special
Levy and be, its wall thickness is less than or equal to 3mm, aperture is less than or equal to 0.1 μm.
9. a kind of application of graphene thin wall hollow flat board inoranic membrane according to any of the above-described claim, its feature exists
In by the way that graphene thin wall hollow flat board inoranic membrane is arranged at into the membrane filtration station before the water side of filter or aeration work
Position, realizes the processing to water quality or microbubble oxygenic aeration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710483841.6A CN107297150A (en) | 2017-06-23 | 2017-06-23 | The preparation method and application of graphene thin wall hollow flat board inoranic membrane |
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| CN201710483841.6A CN107297150A (en) | 2017-06-23 | 2017-06-23 | The preparation method and application of graphene thin wall hollow flat board inoranic membrane |
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| CN201710483841.6A Pending CN107297150A (en) | 2017-06-23 | 2017-06-23 | The preparation method and application of graphene thin wall hollow flat board inoranic membrane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097064A (en) * | 2017-11-20 | 2018-06-01 | 南京工业大学 | A kind of method based on the mesoporous ceramic membrane of New Two Dimensional material preparation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102908908A (en) * | 2012-11-12 | 2013-02-06 | 景德镇陶瓷学院 | Method for modifying modified ceramic microfiltration membrane by adopting graphite oxide |
-
2017
- 2017-06-23 CN CN201710483841.6A patent/CN107297150A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102908908A (en) * | 2012-11-12 | 2013-02-06 | 景德镇陶瓷学院 | Method for modifying modified ceramic microfiltration membrane by adopting graphite oxide |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097064A (en) * | 2017-11-20 | 2018-06-01 | 南京工业大学 | A kind of method based on the mesoporous ceramic membrane of New Two Dimensional material preparation |
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Application publication date: 20171027 |