CN107051229A - A kind of preparation method and its usage of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking - Google Patents
A kind of preparation method and its usage of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking Download PDFInfo
- Publication number
- CN107051229A CN107051229A CN201710247082.3A CN201710247082A CN107051229A CN 107051229 A CN107051229 A CN 107051229A CN 201710247082 A CN201710247082 A CN 201710247082A CN 107051229 A CN107051229 A CN 107051229A
- Authority
- CN
- China
- Prior art keywords
- graphene oxide
- titanium dioxide
- polyethyleneimine
- composite membrane
- oxide
- 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.)
- Pending
Links
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
- B01D71/06—Organic material
- B01D71/26—Polyalkenes
-
- 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
-
- 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
Abstract
The invention provides a kind of preparation method and its usage of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking, preparation process is as follows：In 250mL beaker, graphene oxide is taken to be scattered in deionized water, ultrasound obtains graphene oxide dispersion；Add Ti (SO4)2, mixed solution is heated into 24h under the conditions of 60 DEG C, centrifuged, is washed, dries, obtains graphene oxide/titanic oxide nano compound material；Graphene oxide/titanic oxide nano compound material is dispersed in water, ammoniacal liquor regulation PH is added dropwise, graphene oxide/titanium oxide dispersion is obtained；Amino polymer is added, ultrasonic dissolution, by obtained colloidal solution using cellulose mixture film as basement membrane, is filtered by vacuum at a given temperature, that is, obtain graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking.In the present invention, polyethyleneimine causes the layered composite film to have more stable separating property.
Description
Technical field
The invention belongs to technical field of environment function material preparation, refer in particular to a kind of graphene oxide of polyethyleneimine crosslinking/
The preparation method and its usage of titanium dioxide stratiform composite membrane.
Background technology
Waste water from dyestuff is one of main noxious industry waste water, is mainly derived from production industry in the middle of dyestuff and dyestuff, by
The material that is lost in the mother liquors of various products and its intermediate crystallizations, production process and the sewage composition for washing away ground.With dye
Material is industrial to go from strength to strength, and it produces waste water turns into main pollution source of water body.Therefore, Wastewater Dyes molecule how is removed
The always focus and study hotspot of people.
The new and high technology that membrane separation technique is got up by superiority developments such as its efficient, low energy consumption, easy to operate and low inputs
It is widely used in dye industry.UF membrane is the separation process based on material, is to utilize each component in mixture
Physics in the material and the difference of chemical property realize the process of material separation, therefore membrane material is the base of membrane separation technique
Plinth.
Van der Waals force and hydrogen bond action that graphene oxide exists by its piece interlayer, have the advantages that easy film forming, pass through mistake
Filter or spin coating process, it is easy to graphene oxide film is formed in substrate.At present, graphene oxide film is in separation field
It is widely studied, and shows good separating property (Huang H, Mao Y, Ying Y, et al.Salt
concentration,pH and pressure controlled separation of small molecules
through lamellar graphene oxide membranes[J]. Chemical Communications,2013,49
(53):5963-5965.).Although graphene oxide film has good mechanical performance and stability under the dry condition,
But when it is in moist or water environment, the mechanical performance of graphene oxide film can become unstable, graphene oxide
Particle is easily split away off from film, causes the rupture of film.Polyethyleneimine (PEI) is a kind of dissaving polymer, due to
There is the functional groups such as primary amine, secondary amine and tertiary amine on PEI, so PEI can pass through amido and carboxylic with stannic oxide/graphene nano particle
Electrostatic interaction occurs for base.In addition, with the epoxy radicals on graphene oxide epoxy ring opening reaction can occur for primary amine group, because
This polyethyleneimine can in the form of covalent bond crosslinking-oxidization graphene film, drastically increase film in water environment
Stability (Huang T, Zhang L, Chen H, et al.A cross-linking graphene oxide-
polyethyleneimine hybrid film containing ciprofloxacin:one-step preparation,
controlled drug release and antibacterial performance[J].Journal of Materials
Chemistry B,2015,3(8): 1605-1611.)。
In this technology, graphene oxide/titanic oxide nano compound material is prepared for by one-step synthesis first, used
Vacuum filtration method finally gives graphene oxide/nano titania layered composite film of polyethyleneimine crosslinking, and preparation is answered
Conjunction film macrostructure is completely continuous, and microcosmic stratiform compact structure is clear.Nano titanium oxide is supported in graphene oxide layer
The interlamellar spacing of graphene oxide/nano titania layered composite film of polyethyleneimine crosslinking can effectively be increased, its
The hydrophily and illumination degrading performance of body cause the layered composite film prepared to have excellent water flux and self-cleaning performance；Together
When, the crosslinked action of polyethyleneimine causes the layered composite film to have more stable separating property, and this is dyestuff point in water
The removal of son provides new technological means.
The content of the invention
The purpose of the present invention is to prepare a kind of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking,
The seperation film has excellent segregational stability, can effectively remove dye molecule in the aqueous solution.
The present invention is achieved through the following technical solutions：
A kind of preparation method of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking, step is as follows：
Step 1, one-step synthesis prepare graphene oxide/titanic oxide nano compound material：
In 250mL beaker, graphene oxide is taken to be scattered in deionized water, ultrasound obtains graphene oxide and disperseed
Liquid；Add Ti (SO4)2, mixed solution is heated into 24h under the conditions of 60 DEG C, centrifuge, wash, dry, obtain graphene oxide/
Titanic oxide nano compound material；
It is prepared by step 2, graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking：
Graphene oxide/titanic oxide nano compound material is dispersed in water, ammoniacal liquor regulation pH is added dropwise, oxidation stone is obtained
Black alkene/titanium oxide dispersion；Graphene oxide/titanium oxide dispersion is stirred, amino polymer, ultrasound is added
Dissolving, by obtained colloidal solution using cellulose mixture film as basement membrane, is filtered by vacuum, then composite membrane exists at a given temperature
1h is handled under the conditions of 50 DEG C, that is, obtains graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking.
In step 1, the mass concentration of graphene oxide is 0.3~1.2mg/mL in the graphene oxide aqueous dispersions.
In step 1, described graphene oxide and the mass ratio of sulfatase polypeptide are 12.5~50:60.
In step 2, described graphene oxide and the mass ratio of amino polymer are 12.5~50:25.
In step 2, described amino polymer is polyethyleneimine, hyperbranched polyethyleneimine, chitosan, polyamide,
At least one of ultrabranching polyamide.
In step 2, the cellulose mixture membrane aperture is 0.22 μm, and the given temperature is 0~100 DEG C, is given described
The time for determining suction filtration at temperature is 0.5~2h, and the concentration of the ammoniacal liquor is 1mol/L.
Graphene oxide/titanium dioxide stratiform composite membrane of prepared polyethyleneimine crosslinking is used to remove dyestuff in water removal
Molecule.
Beneficial effect：
A kind of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking prepared by the present invention, leads to first
Cross one-step synthesis and be prepared for graphene oxide/titanic oxide nano compound material, poly- second is finally given using vacuum filtration method
Graphene oxide/nano titania layered composite film of alkene imines crosslinking, the composite membrane macrostructure of preparation is completely continuous, micro-
See layer structure fine and close clear.Nano titanium oxide, which is supported in graphene oxide layer, can effectively increase polyethyleneimine
The interlamellar spacing of the graphene oxide of crosslinking/nano titania layered composite film, the hydrophily and illumination degrading performance of itself
So that the layered composite film prepared has excellent water flux and self-cleaning performance；Meanwhile, the crosslinked action of polyethyleneimine makes
Obtaining the layered composite film has more stable separating property, and this provides new technology hand for the removal of dye molecule in water
Section.
Brief description of the drawings
Fig. 1 be embodiment 1 in preparation graphene oxide/nano titania compound transmission electron microscope picture；
Fig. 2 be embodiment 1 in material Fourier transform infrared spectroscopy figure, wherein, the INFRARED SPECTRUM of (a) graphene oxide
Figure, the infrared spectrum of (b) graphene oxide/titanium dioxide compound, graphene oxide/dioxy of (c) polyethyleneimine crosslinking
Change the infrared spectrum of titanium layered composite film；
Fig. 3 is that the material in embodiment 1 shakes photo after 1h in water, wherein, the oxidation stone of (a) polyethyleneimine crosslinking
Black alkene/titanium dioxide stratiform composite membrane shakes photo after 1h in water, and (b) graphene oxide/titanium dioxide composite film is in water
Photo after 1h is shaken, (c) graphene oxide shakes photo after 1h in water.
Embodiment
With reference to specific implementation example, the present invention will be further described.
Embodiment 1：
(1) one-step synthesis prepares graphene oxide/titanic oxide nano compound material
In 250mL beaker, 12.5mg graphene oxides, 40mL deionized waters, ultrasonic 3h are added；Add 60mg Ti
(SO4)2, mixed solution is heated into 24h under the conditions of 60 DEG C, centrifuged, washing；Obtained product is dispersed in 40mL water, is added dropwise
1mol/L ammoniacal liquor obtain stable graphene oxide/titanium oxide dispersion to pH=10.
(2) prepared by graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking
By the graphene oxide prepared in step 1/titanium oxide dispersion stirring 30min, 25mg polyethyleneimine is added
Amine, ultrasonic 1h, by obtained colloidal solution using aperture be 0.22 μm of cellulose mixture film as basement membrane, be filtered by vacuum 12h, at 0 DEG C
Under the conditions of handle 30min, that is, obtain polyethyleneimine crosslinking graphene oxide/titanium dioxide stratiform composite membrane.
The graphene oxide sheet of two structures is should be apparent that from Fig. 1, substantial amounts of titanium dioxide nano-particle is uniform
It is attached on graphene oxide sheet, this explanation is successfully prepared pattern uniform graphene oxide/titanic oxide nano compound material.
Fig. 2 (a) is the infrared spectrum of graphene oxide, in 3398,1720,1620,1414,1224 and 1053cm-1Institute is right
The absworption peak answered represent respectively the C=O in water O-H, carboxyl, the C=C in aromatic carbocyclic, the C-O in carboxyl, in epoxy radicals
The vibrations of C-O in C-O and hydroxyl, show eucolloid graphite powder successful transformation into graphene oxide；Compared to Fig. 2 (a),
From Fig. 2 (b) it can be seen that in 950cm-1And 800cm-1There is stronger absworption peak in place, and this belongs to titanium dioxide nano-particle
Characteristic peak, and remain the characteristic peak of graphene oxide, this shows graphene oxide/titanic oxide nano compound material
It is prepared by success；Compared to Fig. 2 (b), Fig. 2 (c) it can be seen that 2923cm-1And 2852cm-1The characteristic peak at place is remarkably reinforced,
1738cm-1The feature peak intensity at place significantly reduces, and this shows successfully to be prepared for poly- second by graphene oxide/titanium dioxide compound
Graphene oxide/titanium dioxide stratiform composite membrane of alkene imines crosslinking.
It can be seen that during earthquake, the solution colour in culture dish is constant, graphene oxide particle from Fig. 3 (a)
Do not come off from film, show the crosslinked action of polyethyleneimine so that composite membrane is significantly improved in water stability；Compared to
Fig. 3 (a), from Fig. 3 (b) and Fig. 3 (c) as can be seen that during earthquake, graphene oxide particle gradually comes off from film, makes
Solution colour in culture dish becomes brown color, further demonstrates that the crosslinked action of polyethyleneimine and can make composite membrane in water
Stability is significantly improved；
Embodiment 2：
(1) one-step synthesis prepares graphene oxide/titanic oxide nano compound material
In 250mL beaker, 25mg graphene oxides, 40mL deionized waters, ultrasonic 3h are added；Add 60mg Ti
(SO4)2, mixed solution is heated into 24h under the conditions of 60 DEG C, centrifuged, washing；Obtained product is dispersed in 40mL water, is added dropwise
1mol/L ammoniacal liquor obtain stable graphene oxide/titanium oxide dispersion to pH=10.
(2) prepared by graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking
By the graphene oxide prepared in step 1/titanium oxide dispersion stirring 30min, 25mg polyethyleneimine is added
Amine, ultrasonic 1h, by obtained colloidal solution using aperture be 0.22 μm of cellulose mixture film as basement membrane, be filtered by vacuum 12h, at 50 DEG C
Under the conditions of handle 1h, that is, obtain polyethyleneimine crosslinking graphene oxide/titanium dioxide stratiform composite membrane.
Embodiment 3：
(1) one-step synthesis prepares graphene oxide/titanic oxide nano compound material
In 250mL beaker, 50mg graphene oxides, 40mL deionized waters, ultrasonic 3h are added；Add 60mg Ti
(SO4)2, mixed solution is heated into 24h under the conditions of 60 DEG C, centrifuged, washing；Obtained product is dispersed in 40mL water, is added dropwise
1mol/L ammoniacal liquor obtain stable graphene oxide/titanium oxide dispersion to pH=10.
(2) prepared by graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking
By the graphene oxide prepared in step 1/titanium oxide dispersion stirring 30min, 25mg polyethyleneimine is added
Amine, ultrasonic 1h, by obtained colloidal solution using aperture be 0.22 μm of cellulose mixture film as basement membrane, be filtered by vacuum 12h, 100
2h is handled under the conditions of DEG C, that is, obtains graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking.
Claims (7)
1. a kind of preparation method of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking, it is characterised in that
Step is as follows：
Step 1, one-step synthesis prepare graphene oxide/titanic oxide nano compound material：
In 250mL beaker, graphene oxide is taken to be scattered in deionized water, ultrasound obtains graphene oxide dispersion；Plus
Enter Ti (SO4)2, mixed solution is heated into 24h under the conditions of 60 DEG C, centrifuged, is washed, dries, obtains graphene oxide/titanium dioxide
Titanium nanometer composite material；
It is prepared by step 2, graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking：
Graphene oxide/titanic oxide nano compound material is dispersed in water, ammoniacal liquor regulation PH is added dropwise, graphite oxide is obtained
Alkene/titanium oxide dispersion；Graphene oxide/titanium oxide dispersion is stirred, amino polymer is added, ultrasound is molten
Solution, by obtained colloidal solution using cellulose mixture film as basement membrane, is filtered by vacuum, that is, obtains polyethyleneimine at a given temperature
The graphene oxide of crosslinking/titanium dioxide stratiform composite membrane.
2. a kind of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking according to claim 1
The mass concentration of graphene oxide is 0.3 in preparation method, it is characterised in that in step 1, the graphene oxide aqueous dispersions
~1.2mg/mL.
3. a kind of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking according to claim 1
In preparation method, step 1, described graphene oxide and the mass ratio of sulfatase polypeptide are 12.5~50:60.
4. a kind of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking according to claim 1
In preparation method, step 2, described graphene oxide and the mass ratio of amino polymer are 12.5~50:25.
5. a kind of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking according to claim 1
In preparation method, step 2, described amino polymer is polyethyleneimine, hyperbranched polyethyleneimine, chitosan, polyamide,
At least one of ultrabranching polyamide.
6. a kind of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking according to claim 1
In preparation method, step 2, the cellulose mixture membrane aperture is 0.22 μm, and the given temperature is 0~100 DEG C, is given described
The time for determining suction filtration at temperature is 0.5~2h, and the concentration of the ammoniacal liquor is 1mol/L.
7. a kind of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking according to claim 1
Preparation method, graphene oxide/titanium dioxide stratiform composite membrane of prepared polyethyleneimine crosslinking is used to go to contaminate in water removal
Expect molecule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247082.3A CN107051229A (en) | 2017-04-17 | 2017-04-17 | A kind of preparation method and its usage of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247082.3A CN107051229A (en) | 2017-04-17 | 2017-04-17 | A kind of preparation method and its usage of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107051229A true CN107051229A (en) | 2017-08-18 |
Family
ID=59600983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710247082.3A Pending CN107051229A (en) | 2017-04-17 | 2017-04-17 | A kind of preparation method and its usage of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107051229A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893218A (en) * | 2017-10-27 | 2018-04-10 | 苏州大学 | Titanium dioxide/sulfoxidation graphene/Nano silver grain composite membrane and preparation method and application |
| CN108249655A (en) * | 2018-02-02 | 2018-07-06 | 上海师范大学 | Rotary-type photocatalysis-absorption-UF membrane concerted reaction device |
| CN108380213A (en) * | 2018-03-19 | 2018-08-10 | 上海应用技术大学 | It is a kind of can magnetic recovery graphene/optically catalytic TiO 2 composite material and preparation method |
| CN109011708A (en) * | 2018-09-17 | 2018-12-18 | 佛山朝鸿新材料科技有限公司 | A kind of preparation method of efficient oil sorbent mat material |
| CN110038436A (en) * | 2019-04-04 | 2019-07-23 | 三达膜科技（厦门）有限公司 | A kind of preparation method of titanium dioxide graphene oxide polyethylene glycol composite ceramics nanofiltration membrane |
| CN110449039A (en) * | 2019-08-16 | 2019-11-15 | 宁波石墨烯创新中心有限公司 | A kind of graphene/graphene oxide base seperation film and preparation method thereof |
| CN110508163A (en) * | 2019-09-06 | 2019-11-29 | 南京大学 | A kind of MOF film of crosslinked polyethylenimine and preparation method thereof |
| CN110639371A (en) * | 2019-06-26 | 2020-01-03 | 浙江工业大学 | Preparation method of nano titanium dioxide blended graphene oxide loose nanofiltration membrane and application of nano titanium dioxide blended graphene oxide loose nanofiltration membrane in dye desalination |
| CN110665371A (en) * | 2019-05-30 | 2020-01-10 | 黎明职业大学 | Preparation method of adsorption photocatalytic separation multifunctional membrane based on polydopamine biomimetic coating |
| CN110743585A (en) * | 2019-11-20 | 2020-02-04 | 南通纺织丝绸产业技术研究院 | Preparation method of graphene-based nano titanium dioxide sheet for enhancing visible light catalysis |
| CN110772993A (en) * | 2019-09-20 | 2020-02-11 | 浙江工业大学 | Method for preparing graphene oxide/modified titanium dioxide composite nanofiltration membrane through multi-effect coupling and application of graphene oxide/modified titanium dioxide composite nanofiltration membrane in dye desalination |
| CN112203748A (en) * | 2018-04-05 | 2021-01-08 | 日东电工株式会社 | Mixed matrix membrane with graphene oxide and polyetheramide polymer for gas dehydration |
| CN112642304A (en) * | 2020-12-10 | 2021-04-13 | 中国科学院新疆理化技术研究所 | Preparation method of polyethyleneimine oil-water separation composite membrane material |
| CN112774464A (en) * | 2020-12-17 | 2021-05-11 | 中国科学院过程工程研究所 | Forward osmosis composite membrane and preparation method and application thereof |
| WO2021194418A1 (en) * | 2020-03-24 | 2021-09-30 | National University Of Singapore | A semi-permeable membrane |
| CN115350600A (en) * | 2022-08-18 | 2022-11-18 | 同济大学 | Polyethyleneimine @ Co-CAT-1/graphene oxide composite separation membrane and preparation method and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103183340A (en) * | 2013-03-27 | 2013-07-03 | 复旦大学 | Ultra-high-modulus and high-strength oxidized graphene film and preparation method thereof |
| CN104189910A (en) * | 2014-08-13 | 2014-12-10 | 浙江大学 | Method for preparing graphene oxide film for sustained release of and graphene oxide film product |
| CN104743549A (en) * | 2015-03-18 | 2015-07-01 | 浙江大学 | Non-layered cross-linked graphene oxide film as well as preparation method and application thereof |
| CN105038222A (en) * | 2015-08-11 | 2015-11-11 | 河南科技大学 | Graphene/PEI (polyethyleneimine) gas barrier composite membrane and preparing method of graphene/PEI gas barrier composite membrane |
| CN105749762A (en) * | 2016-01-26 | 2016-07-13 | 浙江工商大学 | Macromolecular composite membrane material with photocatalysis activity and preparation method thereof |
| CN106064023A (en) * | 2016-04-13 | 2016-11-02 | 天津大学 | The preparation of a kind of functional graphene oxide composite membrane and application |
| CN106395800A (en) * | 2016-08-26 | 2017-02-15 | 南通大学 | Preparation method of TiO2 intercalated graphene oxide |
-
2017
- 2017-04-17 CN CN201710247082.3A patent/CN107051229A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103183340A (en) * | 2013-03-27 | 2013-07-03 | 复旦大学 | Ultra-high-modulus and high-strength oxidized graphene film and preparation method thereof |
| CN104189910A (en) * | 2014-08-13 | 2014-12-10 | 浙江大学 | Method for preparing graphene oxide film for sustained release of and graphene oxide film product |
| CN104743549A (en) * | 2015-03-18 | 2015-07-01 | 浙江大学 | Non-layered cross-linked graphene oxide film as well as preparation method and application thereof |
| CN105038222A (en) * | 2015-08-11 | 2015-11-11 | 河南科技大学 | Graphene/PEI (polyethyleneimine) gas barrier composite membrane and preparing method of graphene/PEI gas barrier composite membrane |
| CN105749762A (en) * | 2016-01-26 | 2016-07-13 | 浙江工商大学 | Macromolecular composite membrane material with photocatalysis activity and preparation method thereof |
| CN106064023A (en) * | 2016-04-13 | 2016-11-02 | 天津大学 | The preparation of a kind of functional graphene oxide composite membrane and application |
| CN106395800A (en) * | 2016-08-26 | 2017-02-15 | 南通大学 | Preparation method of TiO2 intercalated graphene oxide |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893218B (en) * | 2017-10-27 | 2020-01-10 | 苏州大学 | Titanium dioxide/sulfonated graphene oxide/silver nanoparticle composite membrane and preparation method and application thereof |
| CN107893218A (en) * | 2017-10-27 | 2018-04-10 | 苏州大学 | Titanium dioxide/sulfoxidation graphene/Nano silver grain composite membrane and preparation method and application |
| CN108249655A (en) * | 2018-02-02 | 2018-07-06 | 上海师范大学 | Rotary-type photocatalysis-absorption-UF membrane concerted reaction device |
| CN108249655B (en) * | 2018-02-02 | 2021-07-06 | 上海师范大学 | Rotary type photocatalysis-adsorption-membrane separation synergistic reaction device |
| CN108380213A (en) * | 2018-03-19 | 2018-08-10 | 上海应用技术大学 | It is a kind of can magnetic recovery graphene/optically catalytic TiO 2 composite material and preparation method |
| CN108380213B (en) * | 2018-03-19 | 2020-12-08 | 上海应用技术大学 | Magnetically-recyclable graphene/titanium dioxide photocatalytic composite material and preparation method thereof |
| CN112203748A (en) * | 2018-04-05 | 2021-01-08 | 日东电工株式会社 | Mixed matrix membrane with graphene oxide and polyetheramide polymer for gas dehydration |
| CN109011708A (en) * | 2018-09-17 | 2018-12-18 | 佛山朝鸿新材料科技有限公司 | A kind of preparation method of efficient oil sorbent mat material |
| CN110038436B (en) * | 2019-04-04 | 2022-01-04 | 三达膜科技（厦门）有限公司 | Preparation method of titanium dioxide/graphene oxide/polyethylene glycol composite ceramic nanofiltration membrane |
| CN110038436A (en) * | 2019-04-04 | 2019-07-23 | 三达膜科技（厦门）有限公司 | A kind of preparation method of titanium dioxide graphene oxide polyethylene glycol composite ceramics nanofiltration membrane |
| CN110665371B (en) * | 2019-05-30 | 2022-02-25 | 黎明职业大学 | Preparation method of adsorption photocatalytic separation multifunctional membrane based on polydopamine biomimetic coating |
| CN110665371A (en) * | 2019-05-30 | 2020-01-10 | 黎明职业大学 | Preparation method of adsorption photocatalytic separation multifunctional membrane based on polydopamine biomimetic coating |
| CN110639371B (en) * | 2019-06-26 | 2022-05-24 | 浙江工业大学 | Preparation method of nano titanium dioxide blended graphene oxide loose nanofiltration membrane and application of nano titanium dioxide blended graphene oxide loose nanofiltration membrane in dye desalination |
| CN110639371A (en) * | 2019-06-26 | 2020-01-03 | 浙江工业大学 | Preparation method of nano titanium dioxide blended graphene oxide loose nanofiltration membrane and application of nano titanium dioxide blended graphene oxide loose nanofiltration membrane in dye desalination |
| CN110449039A (en) * | 2019-08-16 | 2019-11-15 | 宁波石墨烯创新中心有限公司 | A kind of graphene/graphene oxide base seperation film and preparation method thereof |
| CN110508163A (en) * | 2019-09-06 | 2019-11-29 | 南京大学 | A kind of MOF film of crosslinked polyethylenimine and preparation method thereof |
| CN110772993A (en) * | 2019-09-20 | 2020-02-11 | 浙江工业大学 | Method for preparing graphene oxide/modified titanium dioxide composite nanofiltration membrane through multi-effect coupling and application of graphene oxide/modified titanium dioxide composite nanofiltration membrane in dye desalination |
| CN110772993B (en) * | 2019-09-20 | 2023-12-05 | 浙江工业大学 | Method for preparing graphene oxide/modified titanium dioxide composite nanofiltration membrane through multi-effect coupling and application of graphene oxide/modified titanium dioxide composite nanofiltration membrane in dye desalination |
| CN110743585A (en) * | 2019-11-20 | 2020-02-04 | 南通纺织丝绸产业技术研究院 | Preparation method of graphene-based nano titanium dioxide sheet for enhancing visible light catalysis |
| WO2021194418A1 (en) * | 2020-03-24 | 2021-09-30 | National University Of Singapore | A semi-permeable membrane |
| CN112642304A (en) * | 2020-12-10 | 2021-04-13 | 中国科学院新疆理化技术研究所 | Preparation method of polyethyleneimine oil-water separation composite membrane material |
| CN112642304B (en) * | 2020-12-10 | 2022-06-21 | 中国科学院新疆理化技术研究所 | Preparation method of polyethyleneimine oil-water separation composite membrane material |
| CN112774464A (en) * | 2020-12-17 | 2021-05-11 | 中国科学院过程工程研究所 | Forward osmosis composite membrane and preparation method and application thereof |
| CN112774464B (en) * | 2020-12-17 | 2022-04-08 | 中国科学院过程工程研究所 | Forward osmosis composite membrane and preparation method and application thereof |
| CN115350600A (en) * | 2022-08-18 | 2022-11-18 | 同济大学 | Polyethyleneimine @ Co-CAT-1/graphene oxide composite separation membrane and preparation method and application thereof |
| CN115350600B (en) * | 2022-08-18 | 2023-08-04 | 同济大学 | Polyethylene imine @ Co-CAT-1/graphene oxide composite separation membrane and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107051229A (en) | A kind of preparation method and its usage of graphene oxide/titanium dioxide stratiform composite membrane of polyethyleneimine crosslinking | |
| CN106178979B (en) | High-performance two-dimensional stratiform Ti3C2- MXene film and preparation method thereof and the application in water process | |
| CN105148741B (en) | A kind of preparation method of inorganic nano-hybrid lotus positive electrical polyelectrolyte complex compound infiltrating and vaporizing membrane | |
| CN105084355B (en) | Controllable stable graphene oxide membrane of interlamellar spacing and preparation method thereof | |
| CN102327746B (en) | Anti-pollution cyclodextrin-polymer composite nano-filtration membrane and preparation method thereof | |
| CN106492646B (en) | A kind of preparation method for the preferential mesoporous silicon oxide hybridized film of alcohol infiltration evaporation thoroughly | |
| CN107349803B (en) | Super-hydrophobic polymer microporous membrane and manufacturing method thereof | |
| CN107486045B (en) | MoS2Polyelectrolyte hybrid nanofiltration membrane and preparation method thereof | |
| CN108285540A (en) | A kind of preparation method of aramid nano-fiber water-dispersed and aramid fiber nanometer paper | |
| CN104415669B (en) | Graphene derivative composite film, method for producing same, and isopropyl alcohol separation film | |
| CN109126463A (en) | A kind of preparation method of the high-flux nanofiltration membrane of middle layer containing micropore | |
| CN105214579A (en) | Realize the processing method of micron or nanoscale porous material functionalization | |
| Wang et al. | Preparation and properties of polyamide/titania composite nanofiltration membrane by interfacial polymerization | |
| CN108704495A (en) | A kind of preparation method of carboxylation titanium dioxide/calcium alginate compounded hydrogel filter membrane | |
| CN106245232A (en) | Graphene oxide@high polymer nano fiber multilayer film and its preparation method and application | |
| CN102784567B (en) | Modified polyvinylidene fluoride membrane coated with single-walled carbon nano tube and preparation method thereof | |
| Chen et al. | Anchoring the TiO2@ crumpled graphene oxide core–shell sphere onto electrospun polymer fibrous membrane for the fast separation of multi-component pollutant-oil–water emulsion | |
| NL2026536B1 (en) | Method of preparing patulin molecularly imprinted nanofiber membranes | |
| Zhao et al. | Polyelectrolyte complex nanofiltration membranes: performance modulation via casting solution pH | |
| CN104624068A (en) | Method for polypyrrole nano material modified polymer ultrafiltration membrane | |
| CN107737530A (en) | A kind of modified graphene oxide/dissaving polymer composite membrane, preparation method and application | |
| CN104098084B (en) | The preparation method of the controlled carbon nanotube paper of a kind of shape and size | |
| CN108998841A (en) | A kind of preparation method of porous polypropylene nitrile nanofibre | |
| JPWO2015141817A1 (en) | Acicular strontium carbonate fine particles and dispersions thereof | |
| CN104843677B (en) | porous graphene and preparation method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |