CN113578273A - Preparation method of metal organic framework film - Google Patents
Preparation method of metal organic framework film Download PDFInfo
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- CN113578273A CN113578273A CN202110858439.8A CN202110858439A CN113578273A CN 113578273 A CN113578273 A CN 113578273A CN 202110858439 A CN202110858439 A CN 202110858439A CN 113578273 A CN113578273 A CN 113578273A
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- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/223—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material containing metals, e.g. organo-metallic compounds, coordination complexes
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- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
Abstract
The present disclosure relates to a method for preparing a metal organic framework film, the method comprising: placing silane crosslinked polyethylene with first preset mass and polyisobutylene with second preset mass into an internal mixer, and internally mixing the silane crosslinked polyethylene and the polyisobutylene for first preset time at first preset temperature to form a film raw material; the method comprises the steps of putting calcium stearate with third preset mass, antioxidant with fourth preset mass and metal organic framework material with fifth preset mass into an internal mixer, internally mixing the calcium stearate, the antioxidant, the metal organic framework material and membrane raw materials within second preset time to form metal organic framework membrane material, and finally carrying out open mixing on the metal organic framework membrane material to obtain the metal organic framework membrane, wherein the metal organic framework membrane has strong adsorption performance, so that phosphate radicals in water can be removed, and the purpose of relieving water eutrophication is achieved.
Description
Technical Field
The disclosure relates to the technical field of water conservancy ecology, in particular to a preparation method of a metal organic framework film.
Background
With the rapid development of economy in China, various environmental problems follow, wherein the problem of water eutrophication is more and more serious. The factor causing water eutrophication is mainly the discharge of a large amount of elements such as nitrogen and phosphorus, wherein the excessive content of the phosphorus element is the most serious, so the removal of the phosphorus in the water becomes the key point for solving the water eutrophication. Phosphorus usually exists in the form of phosphate in water, the existing method for removing the phosphate in the water body is an adsorption method, and the adsorption method has the advantages of simplicity in operation, high efficiency, environmental friendliness, reusability and the like.
However, the adsorption film currently used for adsorbing phosphate has poor adsorption performance, so that the removal efficiency of phosphate is low.
The metal organic framework material has strong adsorption performance, but the application of the metal organic framework material in the field of water treatment does not appear in the prior art, so how to prepare the metal organic framework film by adopting the metal organic framework material and efficiently adsorb phosphate through the metal organic framework film becomes a problem to be solved urgently.
Disclosure of Invention
In order to solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a method for preparing a metal organic framework film.
The present disclosure provides a method for preparing a metal organic framework film, the method comprising:
placing silane crosslinked polyethylene with first preset mass and polyisobutylene with second preset mass into an internal mixer, and internally mixing the silane crosslinked polyethylene and the polyisobutylene for first preset time and at first preset temperature to form a membrane raw material;
putting calcium stearate with third preset mass, an antioxidant with fourth preset mass and a metal organic framework material with fifth preset mass into the internal mixer, and internally mixing the calcium stearate, the antioxidant, the metal organic framework material and the membrane raw material within second preset time to form a metal organic framework membrane material;
and carrying out open milling on the metal organic framework film material at a preset open milling temperature to obtain the metal organic framework film.
According to an embodiment of the present disclosure, after the step of performing roll refining on the metal organic framework film material to obtain the metal organic framework film, the preparation method further includes:
and covering at least one side surface of the metal organic framework film with nylon mesh cloth.
According to one embodiment of the present disclosure, the mesh number of the nylon mesh cloth is between 70 and 100.
According to one embodiment of the present disclosure, the mesh number of the nylon mesh cloth is 80.
According to an embodiment of the present disclosure, the first predetermined mass is in a range of 25 grams to 30 grams, and the second predetermined mass is in a range of 4.5 grams to 5.5 grams; the third preset mass range is 2-3 g; the fourth preset mass is in the range of 0.3 g to 0.6 g; the range of the fifth preset mass is 60-75 g; the first preset temperature and the preset open milling temperature range are both 140-150 ℃; the first preset time and the second preset time range are both 15 minutes to 30 minutes.
According to an embodiment of the present disclosure, before the step of placing the calcium stearate with the third preset mass, the antioxidant with the fourth preset mass, and the metal organic framework material with the fifth preset mass into the internal mixer, the preparation method further includes:
respectively measuring a sixth preset mass of ferric chloride nonahydrate and a seventh preset mass of 2-amino terephthalic acid, and dissolving the measured ferric chloride nonahydrate and the measured 2-amino terephthalic acid in an eighth preset mass of N-dimethylformamide to obtain a mixed solution;
putting the mixed solution into a reaction kettle with ninth preset mass, and heating for a preset heating time to raise the temperature of the mixed solution to a second preset temperature;
and cooling the mixed solution with the temperature of the second preset temperature, and filtering the cooled mixed solution to obtain the metal organic framework material.
According to an embodiment of the present disclosure, the step of cooling the mixed solution at the second preset temperature and filtering the cooled mixed solution to obtain the metal organic framework material includes:
cooling the mixed solution with the temperature of the second preset temperature, and filtering the cooled mixed solution to obtain a solid product, wherein the solid product contains a metal organic framework material;
and washing and drying the solid product to obtain the metal organic framework membrane material.
According to an embodiment of the present disclosure, the step of washing and drying the solid product to obtain the metal organic framework film material includes:
washing the solid product with ethanol having a third preset temperature;
and drying the washed product to obtain the metal organic framework membrane material.
According to an embodiment of the present disclosure, the step of drying the washed product to obtain the metal organic framework film material includes:
putting the washed product into an oven, and drying at a fourth preset temperature for a third preset time;
and putting the dried product into a vacuum drying oven, and carrying out vacuum drying at a fifth preset temperature for a fourth preset time to obtain the metal organic framework membrane material.
According to an embodiment of the present disclosure, the sixth preset mass is in a range of 67 grams to 70 grams; the seventh preset mass is in the range of 20 grams to 25 grams; the eighth preset mass range is 2500 ml to 3000 ml; the ninth preset mass range is 4555 ml-5500 ml; the preset heating time range is 15-30 hours; the second preset temperature is in the range of 105-115 ℃; the third preset temperature is in the range of 50-70 ℃; the range of the fourth preset temperature is 60-80 ℃; the range of the fifth preset temperature is 140-160 ℃; the third preset time ranges from 20 minutes to 40 minutes; the fourth preset time ranges from 6 hours to 10 hours.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the present disclosure provides a method for preparing a metal organic framework film, the method comprising: placing silane crosslinked polyethylene with first preset mass and polyisobutylene with second preset mass into an internal mixer, and internally mixing the silane crosslinked polyethylene and the polyisobutylene for first preset time at first preset temperature to form a film raw material; putting calcium stearate with third preset mass, antioxidant with fourth preset mass and metal organic framework material with fifth preset mass into an internal mixer, internally mixing the calcium stearate, the antioxidant, the metal organic framework material and a membrane raw material within second preset time to form a metal organic framework membrane material, finally carrying out open milling on the metal organic framework membrane material to obtain the metal organic framework membrane, wherein the metal organic framework membrane material formed by internally mixing the metal organic framework material, the calcium stearate, the antioxidant and the membrane raw material has strong adsorption performance due to the strong adsorption performance of the metal organic framework material, and the metal organic framework membrane material obtained by milling the pull sheet at the preset open milling temperature has strong adsorption performance so as to remove phosphate radicals in water, the aim of relieving water eutrophication is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a flow chart of a method for preparing a metal organic framework film according to an embodiment of the disclosure;
fig. 2 is a schematic structural diagram of a metal organic framework film according to an embodiment of the disclosure.
Wherein, 1, metal organic frame film; 11. a negative electrode; 12. and (4) a positive electrode.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
As shown in fig. 1, this embodiment provides a method for preparing a metal-organic framework film, including:
s101: placing silane crosslinked polyethylene with first preset mass and polyisobutylene with second preset mass into an internal mixer, and internally mixing the silane crosslinked polyethylene and the polyisobutylene for first preset time at first preset temperature to form a film raw material;
s102: putting calcium stearate with a third preset mass, an antioxidant (such as JX-1010) with a fourth preset mass and a metal organic framework material (with a chemical formula of NH2-MIL-101(Fe)) with a fifth preset mass into an internal mixer, and internally mixing the calcium stearate, the antioxidant, the metal organic framework material and a membrane raw material within a second preset time to form a metal organic framework membrane material;
s103: and finally, carrying out open milling on the metal organic framework film material at a preset open milling temperature to obtain the metal organic framework film.
The preparation method mainly comprises the following steps: carrying out crosslinking reaction on silane crosslinked polyethylene and polyisobutylene in an internal mixer at a first preset time and a first preset temperature to form a film raw material; then, carrying out cross-linking reaction on the calcium stearate, the antioxidant, the metal organic framework material and the membrane raw material in an internal mixer within second preset time to form a metal organic framework membrane material; and finally, putting the metal organic framework film material into a double-roller open mill to open and mill the pull sheet to form the metal organic framework film.
The metal organic framework material has a large specific surface and strong adsorption performance, the adsorption performance can exceed 100mg/g, a large number of iron oxide clusters exist in the metal organic framework material, the metal organic framework material has a direct adsorption effect on phosphate radicals in water and has a high adsorption rate, so that the metal organic framework film material formed by banburying the metal organic framework material, calcium stearate, an antioxidant and film raw materials together has strong adsorption performance, the metal organic framework film obtained by adopting the metal organic framework film material has strong adsorption performance, the phosphate radicals in the water can be removed, and the purpose of relieving water eutrophication is achieved.
The specific adsorption principle and process are as follows: when the metal organic framework material film is put into water containing phosphate radical, the metal organic framework material (chemical formula: NH2-MIL-101(Fe)) on the metal organic framework film has high selective adsorption to the phosphate radical, is not interfered by other anions and can preferentially adsorb the phosphate radical in the water. And when the adsorption is saturated, taking out the metal organic framework membrane, and putting the metal organic framework membrane into 0.1mol/L sodium hydroxide (the chemical formula is NaOH) for desorption of phosphate radicals, thereby regenerating the metal organic framework membrane and improving the reutilization rate of the metal organic framework membrane.
Specifically, the structure of the metal organic frame membrane is as shown in fig. 2, a certain voltage is applied to two sides of the metal organic frame membrane 1 to accelerate the migration speed of ions in water, phosphate ions can migrate from the negative electrode 11 to the positive electrode 12 in a directional manner, when encountering the metal organic frame membrane 1 in the migration process, the phosphate ions can be adsorbed by the metal organic frame material on the metal organic frame membrane 1, and due to the existence of a potential difference, the phosphate ions can penetrate through the surface of the metal organic frame membrane 1 more quickly and enter the metal organic frame membrane 1, so that active sites of the metal organic frame material in the metal organic frame membrane 1 can be fully utilized, and the utilization rate is greatly improved.
In addition, the metal organic framework film material was roll-milled for tab-opening using a two-roll mill at 146 ℃. The silane crosslinked polyethylene and polyisobutylene are subjected to crosslinking reaction in an internal mixer so as to form a film raw material.
Specifically, the first preset mass range is 25 g-30 g, and the second preset mass range is 4.5 g-5.5 g; the third preset mass range is 2 g-3 g; the fourth preset mass range is 0.3 g-0.6 g; the fifth preset mass range is 60-75 g; the first preset temperature and the preset open milling temperature range are both 140-150 ℃; the first preset time and the second preset time range are both 15 minutes to 30 minutes.
In this embodiment, the first preset mass is 27 grams, and the second preset mass is 5 grams; the third preset mass is 2.5 grams; the fourth preset mass is 0.5 g; the fifth preset mass is 65 g; the first preset temperature and the preset open temperature are both 146 ℃; the first preset time and the second preset time are both 20 minutes. Namely: 27 g of silane crosslinked polyethylene and 5 g of polyisobutylene were put into an internal mixer at 146 ℃ to be internally mixed for 20 minutes to form a film raw material; then 2.5 g of calcium stearate, 0.5 g of antioxidant (such as JX-1010) and 65 g of metal organic framework material (chemical formula: NH2-MIL-101(Fe)) are put into an internal mixer for internal mixing for 20 minutes to form metal organic framework film material; and finally, carrying out open milling on the metal organic framework film material at the high temperature of 146 ℃ to obtain the metal organic framework film.
In addition, the reaction temperature, the reaction time and the selected quality of each material can be set according to actual needs, and are not limited to the above examples of the embodiment.
In addition, the metal organic frame films of the embodiment can be stacked to form a film stack, so that the high-integration series-parallel connection use of a plurality of metal organic frame films is realized.
Further, after the step of performing open rolling on the metal organic framework film material to obtain the metal organic framework film, the method further comprises the following steps: s104: at least one side surface of the metal organic frame film is covered with nylon mesh cloth so as to improve the strength of the whole metal organic frame film. Exemplarily, the nylon mesh cloth can be arranged on any side surface of the two side surfaces of the metal organic frame film, and the nylon mesh cloth can also be arranged on the two side surfaces of the metal organic frame film, so that the strength of the metal organic frame film is improved. For nylon mesh, the mesh number may be between 70-100, such as setting the mesh number of the nylon mesh to 70, or 80, or 90 or 100. In this embodiment, the mesh number of the nylon mesh cloth is 80.
The preparation method of the metal organic framework material adopted in the steps comprises the following steps: respectively measuring a sixth preset mass of ferric chloride nonahydrate and a seventh preset mass of 2-amino terephthalic acid, and dissolving the measured ferric chloride nonahydrate and the measured 2-amino terephthalic acid in an eighth preset mass of N-dimethylformamide to obtain a mixed solution; and putting the mixed solution into a reaction kettle with ninth preset mass, and heating for a preset heating time length to raise the temperature of the mixed solution to a second preset temperature.
In the process, the sixth preset mass range is 67 g-70 g; the seventh preset mass range is 20-25 g; the eighth preset mass range is 2500 ml to 3000 ml; the ninth preset mass range is 4555 ml-5500 ml; the preset heating time range is 15-30 hours; the second preset temperature is in the range of 105-115 ℃; the third preset temperature is in the range of 50-70 ℃; the fourth preset temperature is in the range of 60-80 ℃; the range of the fifth preset temperature is 140-160 ℃; the third preset time ranges from 20 minutes to 40 minutes; the fourth predetermined time is in the range of 6 hours to 10 hours.
In this example, the sixth preset mass is 67.5 grams; the seventh preset mass is 22.5 grams; the eighth preset mass is 3000 milliliters; the ninth preset mass is 5000 milliliters; presetting the heating time to be 20 hours; the second preset temperature is 110 ℃; namely: 67.5 g of ferric chloride nonahydrate and 22.5 g of 2-aminoterephthalic acid are respectively measured, and the measured ferric chloride nonahydrate and the measured 2-aminoterephthalic acid are dissolved in 3000 ml of N-dimethylformamide to obtain a mixed solution; the mixed solution was placed in a 5000 ml reaction vessel and heated for 20 hours to raise the temperature of the mixed solution to 110 ℃.
In addition, the reaction temperature, the reaction time and the selected quality of each material can be set according to actual needs, and are not limited to the above examples of the embodiment.
And then cooling the mixed solution with the temperature of the second preset temperature, wherein the cooled product contains the residue of the mixed solution, and thus filtering the cooled mixed solution to obtain the metal organic framework material. The method comprises the following specific steps:
cooling the mixed solution with the temperature of a second preset temperature, and filtering the cooled mixed solution to obtain a solid product, wherein the solid product contains metal organic framework materials, mixed solution residues and other impurities;
and then washing and drying the solid product to obtain a relatively pure metal organic framework film material without impurities for subsequent preparation of the metal organic framework film.
The steps of washing and drying the solid product to obtain a relatively pure metal organic framework membrane material without impurities comprise:
washing the solid product with ethanol having a third preset temperature, which may be 60 ℃;
and drying the washed product to obtain the metal organic framework membrane material.
The step of drying the washed product to obtain the metal organic framework film material comprises the following steps: putting the washed product into an oven, and drying at a fourth preset temperature for a third preset time; and putting the dried product into a vacuum drying oven, and carrying out vacuum drying at a fifth preset temperature for a fourth preset time to obtain the metal organic framework membrane material.
Wherein the fourth preset temperature is 70 ℃; the fifth preset temperature is 150 ℃; the third preset time is 30 minutes; the fourth preset time is 8 hours.
Namely, the specific steps of drying the washed product to obtain the metal organic framework film material comprise: putting the washed product into an oven, and drying in the oven at 70 ℃ for 30 minutes; and then transferring the film to a vacuum drying oven, and drying the film for 8 hours in the vacuum drying oven at the temperature of 150 ℃ to finally obtain the metal organic framework film material which is used for preparing the metal organic framework film subsequently.
The step for manufacturing the metal organic frame material may be prior to S101, that is, the metal organic frame material is manufactured by the above method, and then the silane crosslinked polyethylene with the first preset mass and the polyisobutylene with the second preset mass are placed in an internal mixer, so that the silane crosslinked polyethylene and the polyisobutylene are internally mixed for a first preset time and at a first preset temperature to form a film raw material; or, the silane crosslinked polyethylene with the first preset mass and the polyisobutylene with the second preset mass may be placed into an internal mixer, so that the silane crosslinked polyethylene and the polyisobutylene are internally mixed for a first preset time and at a first preset temperature to form a film raw material, and then the metal organic framework material is manufactured by adopting the method. That is, the steps of fabricating the metal organic frame material and the film raw material may not be performed in sequence, but are performed before step S102.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A preparation method of a metal organic framework film is characterized by comprising the following steps:
placing silane crosslinked polyethylene with first preset mass and polyisobutylene with second preset mass into an internal mixer, and internally mixing the silane crosslinked polyethylene and the polyisobutylene for first preset time and at first preset temperature to form a membrane raw material;
putting calcium stearate with third preset mass, an antioxidant with fourth preset mass and a metal organic framework material with fifth preset mass into the internal mixer, and internally mixing the calcium stearate, the antioxidant, the metal organic framework material and the membrane raw material within second preset time to form a metal organic framework membrane material;
and carrying out open milling on the metal organic framework film material at a preset open milling temperature to obtain the metal organic framework film.
2. The method for preparing a metal-organic framework film according to claim 1, wherein after the step of subjecting the metal-organic framework film material to roll-to-roll tabbing to obtain the metal-organic framework film, the method further comprises:
and covering at least one side surface of the metal organic framework film with nylon mesh cloth.
3. The method for preparing a metal organic framework film according to claim 2, wherein the mesh number of the nylon mesh cloth is between 70 and 100.
4. The method for preparing a metal organic framework film according to claim 3, wherein the mesh number of the nylon mesh cloth is 80.
5. The method of preparing a metal organic framework film according to any of claims 1 to 4, wherein the first predetermined mass is in a range of 25 grams to 30 grams and the second predetermined mass is in a range of 4.5 grams to 5.5 grams; the third preset mass range is 2-3 g; the fourth preset mass is in the range of 0.3 g to 0.6 g; the range of the fifth preset mass is 60-75 g; the first preset temperature and the preset open milling temperature range are both 140-150 ℃; the first preset time and the second preset time range are both 15 minutes to 30 minutes.
6. The method of preparing a metal organic framework film according to any of claims 1 to 4, wherein prior to the step of placing the calcium stearate having a third predetermined mass, the antioxidant having a fourth predetermined mass, and the metal organic framework material having a fifth predetermined mass into the internal mixer, the method further comprises:
respectively measuring a sixth preset mass of ferric chloride nonahydrate and a seventh preset mass of 2-amino terephthalic acid, and dissolving the measured ferric chloride nonahydrate and the measured 2-amino terephthalic acid in an eighth preset mass of N-dimethylformamide to obtain a mixed solution;
putting the mixed solution into a reaction kettle with ninth preset mass, and heating for a preset heating time to raise the temperature of the mixed solution to a second preset temperature;
and cooling the mixed solution with the temperature of the second preset temperature, and filtering the cooled mixed solution to obtain the metal organic framework material.
7. The method for preparing a metal organic framework film according to claim 6, wherein the step of cooling the mixed solution at the second preset temperature and filtering the cooled mixed solution to obtain the metal organic framework material comprises:
cooling the mixed solution with the temperature of the second preset temperature, and filtering the cooled mixed solution to obtain a solid product, wherein the solid product contains a metal organic framework material;
and washing and drying the solid product to obtain the metal organic framework membrane material.
8. The method for preparing a metal organic framework membrane according to claim 7, wherein the step of washing and drying the solid product to obtain the metal organic framework membrane material comprises:
washing the solid product with ethanol having a third preset temperature;
and drying the washed product to obtain the metal organic framework membrane material.
9. The method of claim 8, wherein the step of drying the washed product to obtain the metal-organic framework film material comprises:
putting the washed product into an oven, and drying at a fourth preset temperature for a third preset time;
and putting the dried product into a vacuum drying oven, and carrying out vacuum drying at a fifth preset temperature for a fourth preset time to obtain the metal organic framework membrane material.
10. The method of claim 9, wherein the sixth predetermined mass is in a range of 67 grams to 70 grams; the seventh preset mass is in the range of 20 grams to 25 grams; the eighth preset mass range is 2500 ml to 3000 ml; the ninth preset mass range is 4555 ml-5500 ml; the preset heating time range is 15-30 hours; the second preset temperature is in the range of 105-115 ℃; the third preset temperature is in the range of 50-70 ℃; the range of the fourth preset temperature is 60-80 ℃; the range of the fifth preset temperature is 140-160 ℃; the third preset time ranges from 20 minutes to 40 minutes; the fourth preset time ranges from 6 hours to 10 hours.
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