CN114920947A - MOF material for seawater desalination, preparation method thereof and seawater desalination device based on MOF material - Google Patents
MOF material for seawater desalination, preparation method thereof and seawater desalination device based on MOF material Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/008—Supramolecular polymers
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
- C23C22/63—Treatment of copper or alloys based thereon
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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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
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
Abstract
The invention relates to an MOF light absorption material for seawater desalination, a preparation method thereof and a seawater desalination device based on the MOF light absorption material, belonging to the technical field of seawater desalination treatment; the invention provides an MOF light absorption material used in a seawater desalination technology based on interfacial evaporation, a preparation method thereof and a seawater desalination device based on the MOF material, and aims to solve the technical problem of low interfacial evaporation seawater desalination efficiency by reasonably preparing a specific MOF material and reasonably arranging the internal structure of the seawater desalination device.
Description
Technical Field
The invention belongs to the technical field of seawater desalination treatment, and particularly relates to an MOF material for seawater desalination, a preparation method thereof and a seawater desalination device based on the MOF material.
Background
The interface evaporation structure is characterized in that a photo-thermal material is covered on a water-air interface in the seawater desalination device, solar energy is converted into heat energy by utilizing a heat accumulation effect, the temperature of the interface is obviously higher than the temperature of the environment, and liquid water on the surface can be quickly evaporated, so that the evaporation efficiency is improved.
Solar steam devices have received considerable attention in recent years, and have potential for solar energy collection for various applications such as desalination and sterilization of seawater. Over the past few years, various man-made structures have been designed and fabricated to improve energy conversion efficiency by enhancing solar energy absorption, thermal localization. Here, through careful study, we found that a structure similar to mushroom can efficiently generate solar steam due to its unique structure. Under a standard solar illumination, the solar evaporation efficiency can reach about 86.9%.
The MOF material can be prepared by hydrothermal/solvothermal synthesis, ultrasonic method, microwave heating method, etc. The hydrothermal/solvothermal synthesis method refers to a synthesis method in which an original mixture is reacted in a closed system such as an autoclave at a certain temperature and a certain autogenous pressure of a solution by using water or a liquid organic substance as a solvent. The MOF microcrystal product can be easily obtained by the method under the heating condition, and even a single crystal product suitable for single crystal analysis can be obtained, mainly because the high-temperature and high-pressure hydrothermal/solvothermal reaction can promote the dissolution of reactants in a reaction solvent, thereby being beneficial to the generation of the reaction and the crystallization process. The ultrasonic method is to dissolve the raw materials in a solvent for continuous ultrasonic treatment, and the method is characterized in that bubbles can be continuously formed in the solvent for generation, growth and rupture, the nucleation of the material can be uniform, the crystallization time is reduced, and the degree of crystals formed is smaller. However, the ultrasonic method has a certain disadvantage in that the formed MOFs structure has a variety of properties, which makes the synthesized material have different purity. The microwave heating method relates to the interaction of electromagnetic radiation and dipole moment of molecules, and compared with the traditional hydrothermal/solvothermal method, the reaction rate of the MOFs material prepared by the method is greatly improved, mainly because the microwave heating method is different from the traditional heating process and has an internal thermal effect, the applied high-frequency magnetic field can quickly enable the molecules to generate a thermal effect, so that the temperature of a reaction system is quickly increased, and further, chemical reaction is carried out, and in the process, the temperature of the whole reaction system is uniform, and the condition of local overheating is avoided.
However, the MOF materials prepared by the above methods have disadvantages and few studies in the field of solar interface evaporation, and most metals have narrow solar absorption bandwidth intrinsically, which limits their solar-thermal conversion efficiency. Although carbon-based materials exhibit relatively broad solar absorptance, they can be easily contaminated with oil-based water contaminants that are typically present in influent water during actual wastewater purification.
Disclosure of Invention
1. Problems to be solved
Aiming at the technical problem that the efficiency of seawater evaporation and desalination is low by devices and materials in the prior art, the MOF material for seawater desalination, the preparation method thereof and the seawater desalination device based on the MOF material are provided, and the technical problem is improved by reasonable step preparation of specific MOF materials and reasonable arrangement of the seawater desalination device.
2. Technical scheme
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the invention discloses a preparation method of an MOF material for seawater desalination, which comprises the following steps:
step 1, surface treatment
Taking a copper fiber net, and placing the copper fiber net in a liquid solvent for ultrasonic surface treatment to prepare a pretreated copper fiber net carrier;
step 2, copper hydroxide fiber growth
Placing the prepared pretreated copper fiber net carrier in an alkaline solution to enable copper hydroxide fibers to grow on the surface of the pretreated copper fiber net carrier;
step 3, MOF preparation
And (3) processing the pretreated copper fiber net carrier based on the copper hydroxide fibers growing on the surface to prepare the MOF material.
Preferably, the specific steps of step 1 are:
step 1-1, firstly, placing a copper fiber net in an acid solution, wherein the copper fiber net is a red copper fiber net with the copper content of more than 99 percent and a 300-600 mesh, and the acid solution can be a dilute sulfuric acid solution with the volume fraction of 4-7 percent or a hydrochloric acid solution with the volume fraction of 5-20 percent and carrying out primary ultrasonic surface treatment on the copper fiber net;
and 1-2, placing the copper fiber net subjected to the primary ultrasonic surface treatment in an organic solution, wherein the organic solution can be one or more of acetone, diethyl ether or benzene, and performing secondary ultrasonic surface treatment on the copper fiber net.
Preferably, the specific steps of step 2 are: firstly preparing alkali liquor of sodium hydroxide and ammonium persulfate, then placing the pretreated copper fiber net carrier in the step 1 in the alkali liquor for standing, so that copper hydroxide fibers grow on the surface of the pretreated copper fiber net carrier, and then cleaning the pretreated copper fiber net carrier with the copper hydroxide fibers growing on the surface.
Preferably, the specific steps of step 3 are: and (3) mixing 2,3,6,7,10,11-hexahydroxy triphenylene and dimethylformamide in water to prepare a culture solution, and placing the pretreated copper fiber mesh carrier with the copper hydroxide fibers growing on the surface in the step (2) in the culture solution for culturing to prepare the MOF material.
Preferably, the 2,3,6,7,10, 11-hexahydroxyphenylene benzene and dimethylformamide are sonicated while mixed in water.
Preferably, the pretreated copper fiber mesh carrier with the copper hydroxide fibers growing on the surface is placed in a culture solution, then placed in an environment with the temperature of 60-80 ℃ for culturing for 20-30 min, and then taken out and cooled for 5-15 min in an environment with the temperature of 15-35 ℃.
The MOF material for seawater desalination is prepared by the preparation method.
The invention relates to a seawater desalination device based on an MOF material, which comprises a container, the MOF material, a water absorption part, a heat preservation part and a transparent condensation cover, wherein the water absorption part is arranged in the container, the water absorption part extends from the bottom of the container to the top of the container, the top of the water absorption part is provided with the MOF material, and the bottom surface of the MOF material is in contact with the top surface of the water absorption part; a first heat preservation part is arranged between the side part of the water absorption part in the container and the side wall of the container, and a transparent condensation cover is covered at the top of the container; the MOF material is the MOF material for seawater desalination of claim 7.
Preferably, the water absorption part comprises a first water absorption part and a second water absorption part, the bottom of the second water absorption part extends to the bottom in the container, the top of the second water absorption part is provided with the first water absorption part, and the bottom surface of the first water absorption part is contacted with the top surface of the second water absorption part; the cross-sectional area of the first water absorption part is larger than that of the second water absorption part; the bottom surface of the MOF material is in contact with the top surface of the first water absorbing segment.
Preferably, the cross-sectional area of the first water absorbing part is S1, the cross-sectional area of the second water absorbing part is S2, a is S2/S1, and a is less than or equal to 0.25.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the invention relates to a preparation method of an MOF material for seawater desalination and the MOF material prepared by the same, and the preparation method comprises the following steps: step 1, surface treatment; taking a copper fiber net, and placing the copper fiber net in a liquid solvent for ultrasonic surface treatment to prepare a pretreated copper fiber net carrier; step 2, growing copper hydroxide fibers; placing the prepared pretreated copper fiber net carrier in an alkaline solution to enable copper hydroxide fibers to grow on the surface of the pretreated copper fiber net carrier; step 3, preparing MOF; and (3) processing the pretreated copper fiber net carrier based on the copper hydroxide fibers growing on the surface to prepare the MOF material. Through the ultrasonic surface treatment of the copper fiber net in the steps, the surface structure of the copper fiber net is improved, the growth of subsequent copper hydroxide fibers is facilitated, the formation of subsequent MOF is further improved, in addition, an MOF material formed by the copper hydroxide fibers on the copper fiber net has extremely excellent light absorption capacity under the full wave band, and the excellent performance is realized on the seawater desalination of interface evaporation.
(2) The invention discloses a seawater desalination device based on an MOF material, which comprises a container, the MOF material, a water absorbing part, a first heat preservation part and a transparent condensation cover, wherein the water absorbing part is arranged in the container, the water absorbing part extends to the top of the container from the bottom of the container, the top of the water absorbing part is provided with the MOF material, and the bottom surface of the MOF material is in contact with the top surface of the water absorbing part; a first heat preservation part is arranged between the side part of the water absorption part in the container and the side wall of the container, and a transparent condensation cover is covered at the top of the container; the MOF material is the MOF material for seawater desalination; the device controls water evaporation at the water absorption part, so that the lower part of the MOF material is prevented from being completely soaked in seawater, the MOF material can have a local overheating effect, the effect of improving evaporation efficiency can be achieved, and meanwhile, the MOF material can effectively improve the water transport property, light absorption capacity and crystallization resistance of the photo-thermal layer and reduce heat loss of the photo-thermal layer; and the cooperative optimization transportation of water, ions and heat energy in the heat insulation layer can be realized, so that the evaporation rate of the device is optimized, the crystallization phenomenon is inhibited, the heat loss is reduced, and the efficient and stable operation of the device is ensured.
(3) The seawater desalination device based on the MOF material further comprises a first water absorption part and a second water absorption part, wherein the bottom of the second water absorption part extends to the bottom in the container, the top of the second water absorption part is provided with the first water absorption part, and the bottom surface of the first water absorption part is in contact with the top surface of the second water absorption part; the cross-sectional area of the first water absorbing part is larger than that of the second water absorbing part; the MOF material has a bottom surface in contact with the top surface of the first water-absorbing segment and the structure has a large surface area ratio of the surface to achieve greater evaporation and thus a smaller temperature rise, so that convection and radiation losses can be suppressed. The smaller cross-sectional area of the shank compared to the surface, while promoting efficient water supply, also confines the water to a smaller space, minimizing heat conduction losses.
Drawings
FIG. 1 is a schematic diagram of a preparation process of a MOF material for seawater desalination according to the present invention;
FIG. 2 is SEM images of states in the preparation process of the MOF material for seawater desalination;
FIG. 3 is a statistical chart of the absorption capacity of the MOF material for seawater desalination at each wavelength;
fig. 4 is a schematic structural diagram of a sea water desalination device based on MOF materials of the present invention.
The numbering in the figures illustrates:
100. a container;
200. a MOF material;
310. a first water-absorbing part; 320. a second water-absorbing portion;
410. a heat-insulating part;
510. a transparent condensation cover; 600. seawater.
Detailed Description
For a further understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The structures, proportions, and dimensions shown in the drawings and described in the specification are only for the purpose of understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and therefore, the present disclosure is not limited to the essential meanings of the technology, and any modifications of the structures, changes of the proportions, or adjustments of the dimensions, should be within the scope of the disclosure without affecting the efficacy and attainment of the same. Meanwhile, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description only, and are not used to limit the implementable scope, and the relative relationship changes or adjustments may be considered to be within the implementable scope of the present invention without substantial technical changes; in addition, the various embodiments of the present invention are not independent of each other, but may be combined.
The preparation method of the MOF material for seawater desalination has the effect as shown in figure 1, and comprises the following steps:
step 1, surface treatment
Taking a copper fiber net, and placing the copper fiber net in a liquid solvent for ultrasonic surface treatment to prepare a pretreated copper fiber net carrier; the method comprises the following specific steps:
step 1-1, placing a copper fiber net in an acid solution, and carrying out primary ultrasonic surface treatment on the copper fiber net;
and step 1-2, placing the copper fiber net subjected to the primary ultrasonic surface treatment in an organic solution, and performing secondary ultrasonic surface treatment on the copper fiber net.
Step 2, copper hydroxide fiber growth
Placing the prepared pretreated copper fiber net carrier in an alkaline solution to enable copper hydroxide fibers to grow on the surface of the pretreated copper fiber net carrier; specifically, a mixed alkali solution of sodium hydroxide and ammonium persulfate can be prepared, then the pretreated copper fiber mesh carrier in the step 1 is placed in the alkali solution and stands still, so that copper hydroxide fibers, which can also be called copper hydroxide nanowires, grow on the surface of the pretreated copper fiber mesh carrier, and then the pretreated copper fiber mesh carrier with the copper hydroxide fibers growing on the surface is cleaned.
Step 3, MOF preparation, hereinafter referred to as MHS material
Carrying out pretreatment copper fiber mesh carrier treatment based on copper hydroxide fibers growing on the surface to prepare an MOF material; specifically, 2,3,6,7,10,11-hexahydroxy triphenylene and dimethylformamide are mixed in water to prepare a culture solution, 2,3,6,7,10,11-hexahydroxy triphenylene and dimethylformamide are mixed in water to perform ultrasonic treatment, and the pretreated copper fiber mesh carrier with copper hydroxide fibers growing on the surface in the step 2 is placed in the culture solution to be cultured to prepare the MOF material. The pretreated copper fiber mesh carrier with copper hydroxide fibers growing on the surface is placed in a culture solution, placed in an environment with the temperature of 60-80 ℃ for culture for 20-30 min, and then taken out and cooled for 5-15 min in an environment with the temperature of 15-35 ℃.
As shown in fig. 2, a is a low power SEM image of copper hydroxide nanowire material using copper mesh, b is a high power SEM image of copper hydroxide nanowire material, with copper hydroxide nanowires attached to the copper mesh, c is a high power SEM image of copper hydroxide nanowire material, d is a low power SEM image of MHS material, with material attached to the surface, and e is a high power SEM image of MHS material, with MOF material exhibiting needle-point-like growth on copper hydroxide nanowires.
The red copper mesh, the copper hydroxide nanowire and the MHS material are characterized between 300-2500nm by a near infrared-visible-ultraviolet spectrophotometer, and experiments show that the MHS material has extremely excellent light absorption capacity at all wavebands, as shown in figure 3.
After the MOF material of the present invention is prepared, it is used in a MOF material-based seawater desalination apparatus of the present invention, as shown in fig. 4, comprising a container 100, a MOF material 200, a water absorbing part, a heat preservation part 410, and a transparent condensation cover 510.
A water absorbing part is arranged in the container 100 and extends from the bottom of the container 100 to the top of the container 100. The water absorption part comprises a first water absorption part 310 and a second water absorption part 320, the bottom of the second water absorption part 320 extends to the bottom in the container 100, the top of the second water absorption part 320 is provided with the first water absorption part 310, and the bottom surface of the first water absorption part 310 is contacted with the top surface of the second water absorption part 320; the cross-sectional area of the first water absorption part 310 is larger than that of the second water absorption part 320, and a mushroom shape is formed; the bottom surface of MOF material 200 contacts the top surface of first water absorbing segment 310. The cross-sectional area of the first water absorbing part 310 is S1, the cross-sectional area of the second water absorbing part 320 is S2, a is S2/S1, and a is not more than 0.25. The water absorbing portion may employ a water absorbing material such as sponge.
It should be noted here that during the evaporation of seawater, the heat loss is composed of three parts, including conduction, convection and radiation. The mushroom-like structure has a large surface area ratio of the surface enabling stronger evaporation and thus less temperature rise, so that convection and radiation losses can be suppressed. The smaller cross-sectional area of the shank compared to the surface, while promoting efficient water supply, also confines the water to a smaller space, minimizing heat conduction losses.
The top of the water absorbing part is provided with an MOF material 200, and the bottom surface of the MOF material 200 is contacted with the top surface of the water absorbing part; a heat preservation part 410 is arranged between the side part of the water absorption part in the container 100 and the side wall of the container 100, and a transparent condensation cover 510 is covered on the top of the container 100; the MOF material 200 is the MOF material for seawater desalination; the insulating portion 410 may be a thermal insulating material such as foam.
During the use, sea water 600 in container 100 is absorbed to the top end face to second water absorption portion 320, and MOF material 200 receives behind the sunshine that passes transparent condensation cover 510 to evaporate sea water 600, evaporates to transparent condensation cover 510 and carries out the condensation to the sea water in container 100 constantly desalts.
Example 1
In the implementation of the preparation method of the MOF material for seawater desalination, the specific process is as follows:
taking a commercially used 500-mesh red copper mesh with copper content of more than 99.5% as a substrate, cutting a 5 cm-5 cm square sample from the copper mesh by using an art knife, preparing dilute sulfuric acid with volume fraction of 5% to ultrasonically clean the sample for one minute, taking the copper mesh out of the solution, ultrasonically cleaning the copper mesh for one and a half minutes by using ultrapure water and acetone respectively, removing dust and grease stains on the surface of the copper mesh respectively, placing the copper mesh subjected to acetone ultrasonic cleaning in a clean beaker, taking the copper mesh out for later use after drying, and paying attention to that one piece of the copper mesh needs to be cleaned in the ultrasonic cleaning process, and two or more pieces of the copper mesh cannot be cleaned together.
In order to grow copper hydroxide nanowires on the copper mesh, a copper mesh to be used after being cleaned was immersed in a 100ml mixed solution containing 2.7mol/L sodium hydroxide and 0.14mol/L ammonium persulfate, and allowed to stand at room temperature for 35 minutes. The obtained nano copper hydroxide nano wire is thoroughly cleaned by ultrapure water, and the nano copper hydroxide nano wire cannot be cleaned again by ultrasonic.
In order to grow MOF of Cu-CAT-1 type on a line of nano copper hydroxide, a mixed solution of 100ml of ultrapure water and 10ml of DMF (dimethylformamide) is prepared, 200mg of HHTP (2,3,6,7,10,11-hexahydroxytriphenylene) is taken out by an analytical balance and put into the mixed solution and is subjected to ultrasonic treatment for 3 minutes, after the mixed solution is completely mixed, the solution and the material obtained in the second step are respectively put into a culture dish, and are naturally cooled for 10 minutes at room temperature in a drying oven with the preheating temperature of 70 ℃. The resulting MOF multilevel structure material will be washed with acetone.
In this embodiment, the MOF prepared in this embodiment is further applied to the seawater desalination apparatus described above, the cross-sectional area of the first water-absorbing part 310 of the seawater desalination apparatus in this embodiment is S1, the cross-sectional area of the second water-absorbing part 320 is S2, and a is S2/S1 is 0.1105.
In this embodiment, in order to carry out the effect test of the seawater desalination device, the device model is built, and the concrete building conditions are as follows: a glass beaker, in this example a standard 100ml beaker, was used as the container 100 and had an internal diameter of 50mm and a height of 72mm as measured. In order to allow the foam to completely wrap the second water absorbent portion 320, using the foam as the heat retaining portion 410, according to the size of the single second water absorbent portion 320: 1cm × 2cm × 6cm, a through hole based on the area of the tip of the first water-absorbing portion 310 is dug in the central portion of the foam, for example: when the second water absorption part 320 is connected with the first water absorption part 310, a through hole with the size of 1cm multiplied by 2cm is dug out, the second water absorption part 320 is conveniently inserted, and the actual thickness of the foam is 36.88mm and is smaller than the height of the second water absorption part 320. The design of the end caps requires that the size of the MHS material to be placed in the beaker as the photothermal layer should correspond exactly to the size of the end cap to achieve maximum evaporation efficiency.
The experimental conditions in this example were: the surface of 1000 watts of artificial light, at room temperature 23 ℃, with a humidity of 62% RH, was tested for temperature measurement by using an infrared thermometer after the experimental results were stable. The test results are shown in tables 1 and 2.
Comparative example 1
The simulation structure of the seawater desalination apparatus of this comparative example is basically the same as that of example 1, except that in this comparative example, no MOF material is placed and allowed to evaporate naturally.
The experimental conditions of this comparative example were: the temperature measurement of the surface of 1000 watts of artificial light at room temperature of 23 ℃ and humidity of 62% RH was performed by using an infrared thermometer after the experimental results were stabilized. The test results are shown in table 1.
Comparative example 2
The simulation structure of the seawater desalination device of the comparative example is basically the same as that of example 1, except that in the comparative example, the MOF material is not placed, and the MOF material in example 1 is replaced by the sponge alone.
The experimental conditions of the comparative example are as follows: the surface of 1000 watts of artificial light, at room temperature 23 ℃, with a humidity of 62% RH, was tested for temperature measurement by using an infrared thermometer after the experimental results were stable. The test results are shown in table 1.
Comparative example 3
The simulation structure of the seawater desalination device in the comparative example is basically the same as that in example 1, except that in the comparative example, the MOF material is not placed, and the copper mesh is separately placed to replace the MOF material in example 1.
The experimental conditions of the comparative example are as follows: the temperature measurement of the surface of 1000 watts of artificial light at room temperature of 23 ℃ and humidity of 62% RH was performed by using an infrared thermometer after the experimental results were stabilized. The test results are shown in table 1.
Comparative example 4
The simulation structure of the seawater desalination device in the comparative example is basically the same as that in example 1, except that in the comparative example, the MOF material is not placed, and the copper hydroxide nanowires are separately placed to replace the MOF material in example 1.
The experimental conditions of the comparative example are as follows: the temperature measurement of the surface of 1000 watts of artificial light at room temperature of 23 ℃ and humidity of 62% RH was performed by using an infrared thermometer after the experimental results were stabilized. The test results are shown in table 1.
TABLE 1 comparison of the results of the examples 1 and comparative examples 1 to 4
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Example 1 | |
| Material of | Natural evaporation | Sponge | Copper net | Copper hydroxide nanowires | MHS material |
| Efficiency% | 9.8569 | 58.1404 | 56.6268 | 70.9492 | 86.8604 |
| Temperature of | 20.7 | 35.6 | 31.6 | 36.7 | 38.5 |
The temperature is highest when the surface is covered with MHS material, the temperature is second when the copper hydroxide nanowires are not covered with any material, the temperature is second, the copper mesh is second, and the temperature is lowest under the condition of no light source. The technical effect that the evaporation efficiency is highest when the surface is covered with MHS is also verified.
Example 2
The MOF material preparation and seawater desalination device simulation structure of this embodiment is substantially the same as that of embodiment 1, except that in this embodiment, the cross-sectional area of the first water-absorbing portion 310 of the seawater desalination device is S1, the cross-sectional area of the second water-absorbing portion 320 is S2, and a is S2/S1 is 0.2210.
The experimental conditions in this example were: the surface of 1000 watts of artificial light, at room temperature 23 ℃, with a humidity of 62% RH, was tested for temperature measurement by using an infrared thermometer after the experimental results were stable. The test results are shown in table 1.
Comparative example 5
The MOF material preparation and seawater desalination plant simulation structure of this comparative example were substantially the same as example 1 except that in this comparative example, the cross-sectional area of the first water-absorbing part 310 of the seawater desalination plant was S1, the cross-sectional area of the second water-absorbing part 320 was S2, and a was S2/S1 was 0.3316.
The experimental conditions of this comparative example were: the temperature measurement of the surface of 1000 watts of artificial light at room temperature of 23 ℃ and humidity of 62% RH was performed by using an infrared thermometer after the experimental results were stabilized. The test results are shown in table 2.
TABLE 1 comparison of experimental results of examples 1-2 and comparative example 1
| Example 1 | Example 2 | Comparative example 5 | |
| Area ratio | 0.1105:1 | 0.2210:1 | 0.3316:1 |
| Efficiency% | 86.8604 | 85.1701 | 83.6566 |
| Temperature of | 38.5(Max 38.5) | 38.1(Max 38.7) | 39.2(Max 40.6) |
The invention has been described in detail hereinabove with reference to specific exemplary embodiments thereof. It will, however, be understood that various modifications and changes may be made without departing from the scope of the invention as defined in the appended claims. The detailed description and drawings are to be regarded in an illustrative rather than a restrictive sense, and any such modifications and variations, if any, are intended to fall within the scope of the invention as described herein. Furthermore, the background is intended to be illustrative of the state of the art as developed and the meaning of the present technology and is not intended to limit the scope of the invention or the application and field of application of the invention.
Claims (10)
1. A preparation method of an MOF material for seawater desalination is characterized by comprising the following steps:
step 1, surface treatment
Taking a copper fiber net, and placing the copper fiber net in a liquid solvent for ultrasonic surface treatment to prepare a pretreated copper fiber net carrier;
step 2, copper hydroxide fiber growth
Placing the prepared pretreated copper fiber net carrier in an alkaline solution to enable copper hydroxide nanofibers to grow on the surface of the pretreated copper fiber net carrier;
step 3, MOF preparation
The MOF material is prepared by treating a pretreated copper fiber net carrier based on copper hydroxide nanofibers growing on the surface.
2. The preparation method of the MOF material for seawater desalination according to claim 1, characterized in that the specific steps of the step 1 are as follows:
step 1-1, placing a copper fiber net in an acid solution, wherein the copper fiber net is a red copper fiber net with the copper content of more than 99% and 300-600 meshes, and performing primary ultrasonic surface treatment on the red copper fiber net;
and step 1-2, placing the copper fiber net subjected to the primary ultrasonic surface treatment in an organic solution, and performing secondary ultrasonic surface treatment on the copper fiber net.
3. The preparation method of the MOF material for seawater desalination according to claim 1, wherein the specific steps of the step 2 are as follows: firstly, preparing alkaline solution of sodium hydroxide and ammonium persulfate, then placing the pretreated copper fiber net carrier in the step 1 in the alkaline solution for standing, so that copper hydroxide nano fibers grow on the surface of the pretreated copper fiber net carrier, and then cleaning the pretreated copper fiber net carrier with the copper hydroxide nano fibers growing on the surface.
4. The preparation method of the MOF material for seawater desalination according to claim 1, wherein the specific steps of step 3 are as follows: and (3) mixing 2,3,6,7,10,11-hexahydroxy triphenylene and dimethylformamide in water to prepare a culture solution, and placing the pretreated copper fiber mesh carrier with the copper hydroxide fibers growing on the surface in the step (2) in the culture solution for culturing to prepare the MOF material.
5. The method for preparing the MOF material for seawater desalination of claim 4, wherein 2,3,6,7,10, 11-hexahydrotriphenylene and dimethylformamide are subjected to ultrasonic treatment in a mixing process in water.
6. The preparation method of the MOF material for seawater desalination according to claim 4, characterized in that the pretreated copper fiber mesh carrier with copper hydroxide fibers growing on the surface is placed in a culture solution, placed in an environment with the temperature of 60-80 ℃ for culturing for 15-30 min, and then taken out and cooled in an environment with the temperature of 15-35 ℃ for 5-15 min.
7. An MOF material for seawater desalination, which is prepared by the preparation method of any one of claims 1-6.
8. A seawater desalination device based on an MOF material is characterized by comprising a container (100), the MOF material (200), a water absorbing part, a heat preservation part (410) and a transparent condensation cover (510), wherein the water absorbing part is arranged in the container (100), the water absorbing part extends from the bottom of the container (100) to the top of the container (100), the top of the water absorbing part is provided with the MOF material (200), and the bottom surface of the MOF material (200) is in contact with the top surface of the water absorbing part; a heat preservation part (410) is arranged between the side part of the water absorption part in the container (100) and the side wall of the container (100), and a transparent condensation cover (510) is covered at the top of the container (100); the MOF material (200) is the MOF material for desalination of sea water of claim 7.
9. A seawater desalination plant based on MOF material as claimed in claim 8, wherein the water-absorbing part comprises a first water-absorbing part (310) and a second water-absorbing part (320), the bottom of the second water-absorbing part (320) extends to the bottom inside the container (100), the top of the second water-absorbing part (320) is provided with the first water-absorbing part (310), and the bottom surface of the first water-absorbing part (310) is in contact with the top surface of the second water-absorbing part (320); the cross-sectional area of the first water-absorbing part (310) is larger than that of the second water-absorbing part (320); the bottom surface of the MOF material (200) is in contact with the top surface of the first water absorbing segment (310).
10. A MOF material based seawater desalination plant according to claim 9, wherein the cross-sectional area of the first water-absorbing part (310) is S1, the cross-sectional area of the second water-absorbing part (320) is S2, a is S2/S1, and a is ≦ 0.25.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448400A (en) * | 2022-08-26 | 2022-12-09 | 南京林业大学 | Preparation method of wood-based evaporator loaded with metal organic framework |
| CN115634660A (en) * | 2022-09-09 | 2023-01-24 | 理工清科(重庆)先进材料研究院有限公司 | Photo-thermal driving air water-collecting composite material, and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150353385A1 (en) * | 2014-06-09 | 2015-12-10 | King Abdullah University Of Science And Technology | Hydrophobic photothermal membranes, devices including the hydrophobic photothermal membranes, and methods for solar desalination |
| CN112551626A (en) * | 2021-01-21 | 2021-03-26 | 四川大学 | Solar seawater desalination device |
| CN112898610A (en) * | 2021-01-19 | 2021-06-04 | 浙江大学 | Flexible metal-organic framework/gelatin composite film and preparation method and application thereof |
| CN113292733A (en) * | 2021-05-21 | 2021-08-24 | 华中科技大学 | Conductive metal organic framework nanorod array composite material and preparation and application thereof |
-
2022
- 2022-05-18 CN CN202210537567.7A patent/CN114920947A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150353385A1 (en) * | 2014-06-09 | 2015-12-10 | King Abdullah University Of Science And Technology | Hydrophobic photothermal membranes, devices including the hydrophobic photothermal membranes, and methods for solar desalination |
| CN112898610A (en) * | 2021-01-19 | 2021-06-04 | 浙江大学 | Flexible metal-organic framework/gelatin composite film and preparation method and application thereof |
| CN112551626A (en) * | 2021-01-21 | 2021-03-26 | 四川大学 | Solar seawater desalination device |
| CN113292733A (en) * | 2021-05-21 | 2021-08-24 | 华中科技大学 | Conductive metal organic framework nanorod array composite material and preparation and application thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448400A (en) * | 2022-08-26 | 2022-12-09 | 南京林业大学 | Preparation method of wood-based evaporator loaded with metal organic framework |
| CN115448400B (en) * | 2022-08-26 | 2024-04-09 | 南京林业大学 | Preparation method of wood-based evaporator loaded with metal-organic framework |
| CN115634660A (en) * | 2022-09-09 | 2023-01-24 | 理工清科(重庆)先进材料研究院有限公司 | Photo-thermal driving air water-collecting composite material, and preparation method and application thereof |
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