CN110743629A - Ion exchange membrane and preparation method and application thereof - Google Patents
Ion exchange membrane and preparation method and application thereof Download PDFInfo
- Publication number
- CN110743629A CN110743629A CN201911048700.7A CN201911048700A CN110743629A CN 110743629 A CN110743629 A CN 110743629A CN 201911048700 A CN201911048700 A CN 201911048700A CN 110743629 A CN110743629 A CN 110743629A
- Authority
- CN
- China
- Prior art keywords
- exchange membrane
- ion exchange
- ion
- zirconium phosphate
- preparation
- 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
- 239000003014 ion exchange membrane Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims abstract description 41
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 claims abstract description 41
- 229920001046 Nanocellulose Polymers 0.000 claims abstract description 37
- 239000000835 fiber Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 239000006185 dispersion Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910021645 metal ion Inorganic materials 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 238000005342 ion exchange Methods 0.000 abstract description 7
- 239000011521 glass Substances 0.000 description 11
- 238000003756 stirring Methods 0.000 description 9
- 150000002500 ions Chemical class 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000012528 membrane Substances 0.000 description 7
- 229920005597 polymer membrane Polymers 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 3
- 239000007888 film coating Substances 0.000 description 3
- 238000009501 film coating Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002121 nanofiber Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- 238000000909 electrodialysis Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical class C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 125000003010 ionic group Chemical group 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/08—Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/12—Macromolecular compounds
- B01J41/16—Cellulose or wood; Derivatives thereof
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/422—Treatment of water, waste water, or sewage by ion-exchange using anionic exchangers
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides an ion exchange membrane and a preparation method and application thereof. In the invention, zirconium phosphate and nanocellulose fibers are used together, the nanocellulose fibers are mutually overlapped to form a three-dimensional grid structure, and the zirconium phosphate is filled in the grid structure to form the ion exchange membrane. The ion exchange membrane provided by the invention has excellent ion exchange performance.
Description
Technical Field
The invention belongs to the technical field of composite membranes, and relates to an ion exchange membrane, and a preparation method and application thereof.
Background
The ion exchange membrane is a polymer membrane which contains ionic groups and has selective permeability to ions in a solution. Since its ion permselectivity is generally mainly utilized in application, it is also referred to as an ion permselective membrane. Ion exchange membranes have negatively or positively charged groups attached to the polymeric material making up the bulk of the membrane, which can transport cations or anions under an electrical or chemical potential. Ion exchange membranes are used in electrodialysis, reverse electrodialysis, electrolysis, diffusion dialysis and many other processes. Typically, transport of ions through the membrane occurs under the influence of a driving force such as an ion concentration gradient or, optionally, a ground potential gradient.
CN102723506A discloses an ion exchange membrane for a reinforced vanadium battery and a preparation method thereof, wherein the method comprises the following steps: the method comprises the steps of ultrasonically dispersing prepared nano carbon particles containing functional groups in a perfluorinated sulfonic acid resin solution, and then preparing an enhanced membrane material by a casting forming method. CN104018180A discloses a zero-polar distance ion exchange membrane, which is a polymer membrane prepared by compounding perfluorinated ion exchange resin and a reinforcing material, wherein the polymer membrane is converted into an ion exchange membrane, and a non-electrode porous gas release layer is attached to at least one side of the ion exchange membrane; the non-electrode porous gas release layer is formed by attaching dispersion liquid to the surface of an ion exchange membrane and then drying the dispersion liquid; the dispersion liquid is formed by dispersing perfluoro sulfonic acid resin broken microparticles in a sulfonic acid resin hydroalcoholic solution. The ion exchange membrane provided by the patent can be used for the chlor-alkali industry to stably and efficiently treat the alkali chloride solution with high impurity content, but still has the problems that the used polymer membrane cannot be effectively degraded and pollutes the environment.
Zirconium phosphate is a layered inorganic compound with high ion exchange performance, layers are mutually connected by Van der Waals force or hydrogen bonds, and the diameter size distribution of α -ZrP particles can be controlled within a small range, which is beneficial to the application of the zirconium phosphate as an ion exchange membrane.
Today, plastic pollution and environmental problems are becoming more serious, and it is necessary to develop a degradable and environmentally friendly ion exchange membrane.
Disclosure of Invention
The invention aims to provide an ion exchange membrane, a preparation method and application thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides an ion exchange membrane comprising zirconium phosphate and nanocellulose fibers.
In the invention, zirconium phosphate and nanocellulose fibers are used together, the nanocellulose fibers are mutually overlapped to form a three-dimensional grid structure, and the zirconium phosphate is filled in the grid structure to form the ion exchange membrane. If the nano cellulose fiber or zirconium phosphate is used alone, the nano cellulose fiber or zirconium phosphate cannot be applied in a film forming manner.
In the present invention, the ion exchange membrane is composed of zirconium phosphate and nanocellulose fibers.
Preferably, the zirconium phosphate is present in an amount of 20 to 80 wt%, such as 30 wt%, 40 wt%, 50 wt%, 60 wt%, 70 wt%, etc., preferably 30 to 70 wt%, based on 100% of the total mass of the ion exchange membrane.
Preferably, the diameter of the nanocellulose fibers is 300nm to 3 μm, such as 500nm, 800nm, 1 μm, 1.5 μm, 2 μm, 2.5 μm and the like, and the aspect ratio is 15 or more, such as 18, 20, 25, 30, 50, 90, 100, 200 and the like.
Preferably, the zirconium phosphate has a diameter of 100nm to 1.5 μm, such as 200nm, 400nm, 600nm, 800nm, 1 μm, 1.2 μm, 1.4 μm, etc., and a thickness of 100-500nm, such as 200nm, 300nm, 400nm, etc.
In a second aspect, the present invention provides a method for preparing an ion exchange membrane according to the first aspect, the method comprising the steps of:
and mixing the nano cellulose fiber dispersion liquid with zirconium phosphate, coating and drying to obtain the ion exchange membrane.
The ion exchange membrane of the present invention, which has excellent ion exchange performance, can be obtained by a simple coating method.
In the present invention, the method of mixing comprises: mixing at room temperature for 1-3h (e.g. 1.5h, 2h, 2.5h, etc.), heating to 70-80 deg.C (e.g. 72 deg.C, 75 deg.C, 78 deg.C, etc.), and mixing for 1-3h (e.g. 1.5h, 2h, 2.5h, etc.).
In the present invention, the drying temperature is 60-70 deg.C, such as 62 deg.C, 65 deg.C, 67 deg.C, etc., and the drying time is 12-15h, such as 12.5h, 13h, 13.5h, 14h, 14.5h, etc.
Preferably, the concentration of the nanocellulose fiber dispersion is 1-5mg/mL, such as 1.5mg/mL, 2mg/mL, 2.5mg/mL, 3mg/mL, 3.5mg/mL, 4mg/mL, 4.5mg/mL, and the like.
In a third aspect, the present invention provides the use of an ion exchange membrane according to the first aspect in the treatment of wastewater containing metal ions.
The ion exchange membrane provided by the invention has the characteristic of biodegradability, the preparation process is environment-friendly, and meanwhile, the zirconium phosphate still has ion absorption performance, can absorb most metal ions in the wastewater, and achieves the effect of purifying water.
Compared with the prior art, the invention has the following beneficial effects:
(1) in the invention, zirconium phosphate and nano cellulose fiber are used together, the nano cellulose fiber is mutually overlapped to form a three-dimensional grid structure, and zirconium phosphate is filled in the grid structure to form an ion exchange membrane; if the nano cellulose fiber or zirconium phosphate is used alone, the nano cellulose fiber or zirconium phosphate cannot be applied in a film forming manner;
(2) the ion exchange membrane provided by the invention has excellent ion exchange performance, wherein the exchange efficiency of copper ions is close to 100%, the exchange efficiency of anions is more than 99.92%, and the cycle number is more than 4.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
An ion exchange membrane consists of zirconium phosphate and nano cellulose fiber.
Wherein the mass ratio of the zirconium phosphate to the nano cellulose fiber is 1: 1; the average diameter of the nano-cellulose is 500nm, and the length-diameter ratio is 40-60; the zirconium phosphate had an average diameter of 500nm and an average thickness of 300 nm.
The preparation method comprises the following steps:
(1) dissolving 0.25g of nano-fiber in 100mL of water, stirring and dispersing for 2h to form 2.5mg/mL of nano-cellulose fiber dispersion liquid;
(2) adding 0.25g of zirconium phosphate into the nano cellulose fiber dispersion liquid, and stirring for 2 hours to form milky white suspension; heating and stirring the solution at 70 ℃ for 2h to prepare a viscous coating solution;
(3) coating the film coating liquid on a glass plate, placing the glass plate in an oven for curing for 12h at 60 ℃, taking out and then removing the glass plate to obtain the ion exchange membrane.
Examples 2 to 3
The difference from example 1 is that in this example, the mass ratio of zirconium phosphate to nanocellulose fiber was 2:1 (example 2) and 1:2 (example 3).
Example 4
An ion exchange membrane consists of zirconium phosphate and nano cellulose fiber.
Wherein the mass ratio of the zirconium phosphate to the nano cellulose fiber is 4:1, the average diameter of the nano cellulose is 1 μm, and the length-diameter ratio is 20-50; the zirconium phosphate had an average diameter of 1 μm and an average thickness of 500 nm.
The preparation method comprises the following steps:
(1) dissolving 0.1g of nano-fiber in 100mL of water, stirring and dispersing for 2h to form 1mg/mL of nano-cellulose fiber dispersion liquid;
(2) adding 0.4g of zirconium phosphate into the nano cellulose fiber dispersion liquid, and stirring for 3 hours to form milky suspension; heating and stirring the solution at 80 ℃ for 1h to prepare a viscous coating liquid;
(3) and coating the film coating liquid on a glass plate, placing the glass plate in an oven for curing at 70 ℃ for 14h, taking out the glass plate, and removing the glass plate to obtain the ion exchange membrane.
Example 5
An ion exchange membrane consists of zirconium phosphate and nano cellulose fiber.
Wherein the mass ratio of the zirconium phosphate to the nano cellulose fiber is 1:4, the average diameter of the nano cellulose is 300nm, and the length-diameter ratio is 20-50; the zirconium phosphate had an average diameter of 200nm and an average thickness of 100 nm.
The preparation method comprises the following steps:
(1) dissolving 1g of nano-fiber in 100mL of water, stirring and dispersing for 2h to form 5mg/mL of nano-cellulose fiber dispersion liquid;
(2) adding 0.25g of zirconium phosphate into the nano cellulose fiber dispersion liquid, and stirring for 1 hour to form milky white suspension; heating and stirring the solution at 75 ℃ for 3h to prepare a viscous coating solution;
(3) and coating the film coating liquid on a glass plate, placing the glass plate in an oven for curing for 15h at 65 ℃, taking out the glass plate and then removing the glass plate to obtain the ion exchange membrane.
Comparative example 1
The difference from example 1 is that during the preparation process, the preparation method was not changed, but zirconium phosphate was not added, i.e. the ion-exchange membrane in this comparative example only comprises nanocellulose fibers.
Comparative example 2
The difference from example 1 is that during the preparation process, the preparation method was not changed, but no nanocellulose fibers were added, i.e. the ion-exchange membrane in this comparative example only comprises zirconium phosphate.
In comparative examples 1 to 2, no film was formed.
Performance testing
The samples provided in examples 1-5 and comparative examples 1-2 were tested for performance by the following method:
(1) ion exchange capacity: the membrane was fixed with a buchner funnel, the prepared solution was dropped from above at a rate of 1 drop per second, and the absorbed solution was collected from below, and the change in ion concentration was measured.
(2) Cycle number: and (3) repeating the step of the test (1), and when the ion concentration of the prepared solution before and after passing through the ion exchange membrane is basically kept unchanged, indicating that the absorption capacity of the ion exchange membrane is saturated and is recorded as the cycle number, or the membrane is damaged and is also recorded as the cycle number.
The test results are shown in table 1:
TABLE 1
The examples and performance tests show that the ion exchange membrane provided by the invention has excellent ion exchange capacity, wherein the exchange efficiency of copper ions is close to 100%, the exchange efficiency of anions is more than 99.92%, and the cycle number is more than 4.
From the comparison between example 1 and examples 2 to 5, it is understood that when the mass ratio of zirconium phosphate to nanocellulose is 1:1, the performance of the ion-exchange membrane is optimal and the number of cycles is high, and when the difference between the two masses is large (both of examples 4 to 5 are slightly broken when ion-exchange is performed for the fifth time), the ion-exchange membrane is easily broken during the cycles.
As can be seen from the comparison between example 1 and comparative examples 1-2, the ion exchange membrane of the present invention is formed by using zirconium phosphate and nanocellulose fibers together, but the zirconium phosphate and the nanocellulose fibers are not acceptable.
The applicant states that the present invention is illustrated by the above examples of the ion exchange membrane of the present invention and the preparation method and application thereof, but the present invention is not limited to the above process steps, i.e. it does not mean that the present invention must rely on the above process steps to be carried out. It will be apparent to those skilled in the art that any modification of the present invention, equivalent substitutions of selected materials and additions of auxiliary components, selection of specific modes and the like, which are within the scope and disclosure of the present invention, are contemplated by the present invention.
Claims (10)
1. An ion exchange membrane, characterized in that the ion exchange membrane comprises zirconium phosphate and nanocellulose fibers.
2. The ion-exchange membrane according to claim 1, wherein the ion-exchange membrane consists of zirconium phosphate and nanocellulose fibers.
3. The ion-exchange membrane according to claim 1 or 2, wherein the zirconium phosphate is present in an amount of 20 to 80 wt%, based on 100% by mass of the ion-exchange membrane.
4. The ion-exchange membrane according to any one of claims 1 to 3, wherein the nanocellulose fibers have a diameter of from 300nm to 3 μm and an aspect ratio of 15 or more.
5. The ion-exchange membrane according to any one of claims 1 to 4, wherein the zirconium phosphate has a diameter of 100nm to 1.5 μm and a thickness of 100nm to 500 nm.
6. The method for preparing an ion-exchange membrane according to any one of claims 1 to 5, characterized in that it comprises the following steps:
and mixing the nano cellulose fiber dispersion liquid with zirconium phosphate, coating and drying to obtain the ion exchange membrane.
7. The method of claim 6, wherein the mixing comprises: mixing at room temperature for 1-3h, heating to 70-80 deg.C, and mixing for 1-3 h.
8. The method according to claim 6 or 7, wherein the drying is carried out at a temperature of 60 to 70 ℃ for 12 to 15 hours.
9. The method according to any one of claims 6 to 8, wherein the concentration of the dispersion of nanocellulose fibers is from 1 to 5 mg/mL.
10. Use of an ion-exchange membrane according to any one of claims 1 to 5 in the treatment of a wastewater containing metal ions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911048700.7A CN110743629A (en) | 2019-10-29 | 2019-10-29 | Ion exchange membrane and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911048700.7A CN110743629A (en) | 2019-10-29 | 2019-10-29 | Ion exchange membrane and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110743629A true CN110743629A (en) | 2020-02-04 |
Family
ID=69281392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911048700.7A Pending CN110743629A (en) | 2019-10-29 | 2019-10-29 | Ion exchange membrane and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110743629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359679A (en) * | 2020-04-07 | 2020-07-03 | 颇尔(河北)环保设备有限公司 | Nano material modified powder ion exchange resin and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015097047A1 (en) * | 2013-12-24 | 2015-07-02 | Sappi Netherlands Services B.V. | Method for producing a nanocrystalline cellulose (cnc) - reinforced cellulosic fibre or filament |
| CN106512957A (en) * | 2016-11-21 | 2017-03-22 | 浙江农林大学 | Preparation method of spherical titanate cellulose composite aerogel capable of adsorbing radioactive ions and heavy metal ions |
| CN108940226A (en) * | 2018-08-17 | 2018-12-07 | 云南圣清环保科技有限公司 | A kind of biological material adsorbent and the preparation method and application thereof for heavy metals removal |
-
2019
- 2019-10-29 CN CN201911048700.7A patent/CN110743629A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015097047A1 (en) * | 2013-12-24 | 2015-07-02 | Sappi Netherlands Services B.V. | Method for producing a nanocrystalline cellulose (cnc) - reinforced cellulosic fibre or filament |
| CN106512957A (en) * | 2016-11-21 | 2017-03-22 | 浙江农林大学 | Preparation method of spherical titanate cellulose composite aerogel capable of adsorbing radioactive ions and heavy metal ions |
| CN108940226A (en) * | 2018-08-17 | 2018-12-07 | 云南圣清环保科技有限公司 | A kind of biological material adsorbent and the preparation method and application thereof for heavy metals removal |
Non-Patent Citations (6)
| Title |
|---|
| YAZAN IBRAHIM,ET AL: "Synthesis of super hydrophilic cellulose-alpha zirconium phosphate ion exchange membrane via surface coating for the removal of heavy metals from wastewater", 《SCIENCE OF THE TOTAL ENVIRONMENT》 * |
| 位浩等: "纤维素纳米纸的疏水改性及应用研究", 《材料科学与工艺》 * |
| 徐子豪等: "机械共混法制备纳米纤维素/氧化石墨烯/多壁碳纳米管复合材料的研究", 《2016年全国高分子材料科学与工程研讨会论文摘要集》 * |
| 白盼星等: "纳米纤维素重金属离子吸附材料研究进展", 《纺织科技进展》 * |
| 董凤霞: "纳米纤维素作为未来可持续材料的展望", 《中国造纸学会第十七届学术年会论文集》 * |
| 董凤霞等: "纳米纤维素的特性及在造纸中的应用", 《全国特种纸技术交流会暨特种纸委员会第七届年会论文集》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359679A (en) * | 2020-04-07 | 2020-07-03 | 颇尔(河北)环保设备有限公司 | Nano material modified powder ion exchange resin and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Prihatiningtyas et al. | Effect of solvent on the morphology and performance of cellulose triacetate membrane/cellulose nanocrystal nanocomposite pervaporation desalination membranes | |
| Jiang et al. | Preparation and characterization of quaternized poly (vinyl alcohol)/chitosan/MoS2 composite anion exchange membranes with high selectivity | |
| Akin et al. | Green synthesis of reduced graphene oxide/polyaniline composite and its application for salt rejection by polysulfone-based composite membranes | |
| Zhang et al. | Advanced Nafion hybrid membranes with fast proton transport channels toward high-performance vanadium redox flow battery | |
| Zhu et al. | Preparation and characterization of TiO2-regenerated cellulose inorganic–polymer hybrid membranes for dehydration of caprolactam | |
| Pan et al. | Anion exchange membranes from hot-pressed electrospun QPPO–SiO2 hybrid nanofibers for acid recovery | |
| Zhang et al. | Encapsulating amidoximated nanofibrous aerogels within wood cell tracheids for efficient cascading adsorption of uranium ions | |
| KR101746591B1 (en) | Bipolar ion exchange composite membrane and method of manufacturing the same | |
| CN108465377A (en) | A kind of preparation method of regenerated cellulose/chitosan composite antibiotic NF membrane | |
| Gong et al. | Electrospun nanofiber enhanced imidazolium-functionalized polysulfone composite anion exchange membranes | |
| CN110055807A (en) | A kind of p-aramid fiber and graphene oxide/graphene extrusion coating paper preparation method | |
| CN112604507B (en) | Preparation method of high-flux dye separation nanofiltration membrane | |
| CN110449038A (en) | A kind of preparation method of the PTFE composite nanometer filtering film for water filter purification | |
| Shen et al. | Organic solvent resistant Kevlar nanofiber-based cation exchange membranes for electrodialysis applications | |
| Yu et al. | Proton blockage PVDF-co-HFP-based anion exchange membrane for sulfuric acid recovery in electrodialysis | |
| Fu et al. | Highly proton conductive and mechanically robust SPEEK composite membranes incorporated with hierarchical metal–organic framework/carbon nanotubes compound | |
| Wang et al. | In-situ synthesis of MOF nanoparticles in double-network hydrogels for stretchable adsorption device | |
| Peng et al. | Modified silica incorporating into PDMS polymeric membranes for bioethanol selection | |
| CN110743629A (en) | Ion exchange membrane and preparation method and application thereof | |
| Dmitrenko et al. | Novel mixed matrix membranes based on polyelectrolyte complex modified with fullerene derivatives for enhanced pervaporation and nanofiltration | |
| Nazif et al. | Improved permselectivity and mechanical properties of sulfonated poly dimethyl phenylene oxide cation exchange membrane using MXene nanosheets | |
| Daria et al. | Contribution of polysulfone membrane preparation parameters on performance of cellulose nanomaterials | |
| Tamer et al. | Development of polyelectrolyte sulfonated chitosan-alginate as an alternative methanol fuel cell membrane | |
| Hu et al. | Chlorination as a simple but effective method to improve the water/salt selectivity of polybenzimidazole for desalination membrane applications | |
| Zhong et al. | Improved performance of sulfonated poly ether ether ketone/three-dimensional hierarchical molybdenum disulfide nanoflower composite proton exchange membrane for fuel cells |
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: 20200204 |