CN111170393B - Solar evaporator with hollow structure and preparation method and application thereof - Google Patents
Solar evaporator with hollow structure and preparation method and application thereof Download PDFInfo
- Publication number
- CN111170393B CN111170393B CN202010011966.0A CN202010011966A CN111170393B CN 111170393 B CN111170393 B CN 111170393B CN 202010011966 A CN202010011966 A CN 202010011966A CN 111170393 B CN111170393 B CN 111170393B
- Authority
- CN
- China
- Prior art keywords
- solar evaporator
- foam
- solar
- layer
- evaporator
- 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.)
- Active
Links
Images
Classifications
-
- 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
- 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
-
- 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 belongs to the technical field of polymer composite materials, and particularly relates to a solar evaporator with a hollow structure, and a preparation method and application thereof. The invention provides a solar evaporator, wherein the interior of the solar evaporator is of a hollow structure, the exterior of the solar evaporator is of a shell layer with a two-layer structure, and the two-layer structure is respectively an inner layer of a porous polymer framework and an outer layer formed by photo-thermal materials. The solar evaporator obtained by the invention can simulate sunlight (one sunlight intensity: 1KW m)‑2) Under the irradiation of (2), the highest evaporation rate can reach 1.476kg m‑2h‑1The highest evaporation efficiency can reach 92.9%.
Description
Technical Field
The invention belongs to the technical field of polymer composite materials, and particularly relates to a solar evaporator with a hollow structure, and a preparation method and application thereof.
Background
In recent years, the problem of lack of water resources is more and more remarkable, and the demand of fresh water reaches 69000 billion cubes per year by 2030. Although 70% of the earth's surface is covered with water, only 2.5% of the water is fresh water, and 87% of the fresh water is located in the polar ice cap and the mountain glaciers and is hardly used by humans. Solar energy is a clean renewable energy source, and is used for heating water to generate steam, desalinating seawater or treating sewage to obtain clean water resources.
The technology of solar energy to heat energy is a technology of directly obtaining solar energy for energy storage and heat generation, and up to now, the technology of converting solar energy to heat energy has not been fully utilized in many applications, mainly due to its low optical density and high equipment complexity. In a solar driven steam generating system without optical concentration, where the photothermal material is dispersed throughout the water, heat is generated at the surface of the photothermal material, and water vapor is generated elsewhere in the system, this separation of heat and steam results in heat loss from the generating surface to the evaporating surface, making it less efficient. In order to reduce the heat loss on the surface, some researchers found an interfacial evaporation method, and compared with a method of heating the whole water body, the interfacial heating method places a material on the surface of the water body, so that part of the water body can be selectively heated, and the efficiency is improved to a certain extent. However, the interface type evaporator can also be directly contacted with the surface of the water body, so that certain heat can be lost to the water body, some researchers begin to introduce heat insulation layers into a system to prepare a multilayer evaporator, and the heat insulation layers can effectively separate the water body from a heating surface, so that solar energy is fully utilized, and higher evaporation efficiency is achieved. The insulating layer is mostly made of a material with low thermal conductivity and is assembled in the evaporator, but air with extremely low thermal conductivity is difficult to be directly used as an insulating material due to the complexity of introduction.
Disclosure of Invention
In view of the above-mentioned drawbacks, the present invention provides a polymer-based portable solar evaporator, which has a hollow structure inside and a two-layer structure outside, wherein the two-layer structure comprises, from inside to outside, a porous polymer skeleton layer for providing physical support and an outer layer formed of a photo-thermal material for providing photo-thermal conversion capability, and the surface of the shell layer can be made into a convex structure; the solar evaporator with the hollow convex shape can be formed in one step in the hydrothermal reaction process, so that the step of assembling a heat insulation layer is reduced; and the air introduced into the evaporator can enable the evaporator to have lower heat transfer capacity in the vertical direction, the heat loss to the water body is reduced, the convex surface structure is beneficial to increasing the light absorption area of the evaporator, and the evaporation efficiency of the evaporator is improved.
The technical scheme of the invention is as follows:
the first technical problem to be solved by the present invention is to provide a solar evaporator, wherein the interior of the solar evaporator is a hollow structure, and the exterior of the solar evaporator is a shell layer with a two-layer structure, and the two-layer structure respectively comprises a porous polymer framework inner layer (between the hollow layer and the outer layer) and an outer layer (only contacting with the polymer framework inner layer) formed by a photo-thermal material.
Further, in the solar evaporator, the surface of the outer layer of the shell layer is provided with a convex structure.
Further, in the solar evaporator, the polymer in the porous polymer skeleton inner layer is selected from: one of polyurethane foam, polyimide foam, polystyrene foam, melamine formaldehyde resin foam, polyvinyl chloride foam, or polyethylene foam.
Further, in the solar evaporator, the thickness of the inner layer of the porous polymer skeleton is more than or equal to 0.1 mm; preferably 0.1-2 mm; more preferably 0.2 to 1 mm. If the thickness of the polymer skeleton is too small, the water supply process can be slowed down, and sufficient water is not available for evaporation, so that the evaporation rate is greatly reduced and even evaporation cannot be realized; if the thickness is too large, the water supply is too fast, so that excessive water is absorbed to the surface by the porous polymer, the evaporation is not facilitated, and the evaporation speed is reduced to a certain extent; therefore, the thickness is limited to 0.1 to 2 mm. In the invention, the thickness of the outer layer formed by the photo-thermal material should be as thin as possible on the basis of fully performing light absorption so as to reduce the waste of raw materials, such as 2-10 um.
Further, in the solar evaporator, the photo-thermal material is selected from: carbon nanotube, graphene, polydopamine, carbon black or noble metal.
The second technical problem to be solved by the present invention is to provide a method for manufacturing the solar evaporator, wherein the method comprises: firstly, preparing a photo-thermal material and water into a suspension; adding alkali into the suspension, and uniformly mixing to obtain mixed slurry; then, carrying out high-temperature hydrothermal reaction on the mixed slurry and the clean and dry high-molecular foam under a closed condition to form a material with a hollow structure; finally, freeze drying to obtain the solar evaporator; wherein, the high temperature in the hydrothermal reaction means that the temperature is more than 100 ℃ and is less than the decomposition temperature of the macromolecular foam.
In the present invention, the reason why the reaction temperature in the hydrothermal reaction is limited to the above temperature is that: the set temperature is higher than the gasification temperature of water, so that the water can be gasified under the action of the temperature to keep a certain pressure in the reaction process; meanwhile, the set temperature is lower than the decomposition temperature of the polymer foam, so that the polymer foam can maintain a certain form in the reaction process and cannot be directly decomposed.
Further, the concentration of the photo-thermal material in the suspension is less than 3mg/ml and less than 8 mg/ml; because if the concentration is too low, the suspension of the photothermal material is absorbed into the porous polymer foam and cannot be wrapped outside the porous polymer foam; thereby failing to form a multi-layered structure; when the concentration is too high, the photo-thermal material is agglomerated together and cannot be dispersed in water to form a suspension.
Further, the alkali is at least one of sodium hydroxide, potassium hydroxide, copper hydroxide, sodium carbonate and sodium bicarbonate. In the invention, the purpose of adding the alkali into the suspension is to protect the polymer porous foam to a certain extent, so that the polymer porous foam is not directly and completely decomposed under high temperature and high pressure, and a certain porous form is maintained. When the photo-thermal material contains graphene, the alkali added into the suspension has the above function, and the alkali can also play a role of a thickening agent.
Further, in the preparation method of the solar evaporator, the mass ratio of the raw materials is as follows: 30-100 parts of polymer foam, 10-50 parts of photo-thermal material and 30-50 parts of alkali.
Further, in the method for manufacturing the solar evaporator, the method for manufacturing the mixed slurry includes: the alkali is added while the suspension is stirred, and the temperature of the system is kept lower than 10 ℃ during stirring, so that a better thickening effect can be achieved.
The third technical problem to be solved by the present invention is to point out that the solar evaporator can be applied to seawater desalination, sewage treatment or water purification.
The invention has the beneficial effects that:
(1) the multilayer solar evaporator prepared by the invention has a hollow structure, the air in the multilayer solar evaporator is used as a thermal insulation layer, the multilayer solar evaporator has thermal insulation capability superior to commercial thermal insulation materials, and the excellent thermal insulation capability can reduce the loss of heat to water and is beneficial to thermal concentration.
(2) The multi-layer solar evaporator prepared by the invention can have a convex evaporation surface, and has a larger evaporation area per unit area compared with a plane evaporator, thereby being beneficial to the absorption of solar energy. In the case of simulating sunlight (one sunlight intensity: 1KW m)-2) Under the irradiation of (2), the highest evaporation rate can reach 1.476kg m-2h-1The highest evaporation efficiency can reach 92.9%.
(3) The preparation method for preparing the multilayer solar evaporator by utilizing the hydrothermal reaction can be formed in one step, does not need subsequent assembly steps, and has the advantages of simple process, low cost, stable product form and structure, long-term use and the like.
Drawings
FIG. 1 is a digital photograph of an evaporator obtained in an example of the present invention, wherein FIG. 1a is a polymer foam matrix, FIG. 1b is an overall configuration diagram of the obtained evaporator, and FIG. 1c is a sectional view of the obtained evaporator; as shown in fig. 1, the solar evaporator of the present invention has a cavity inside, and the outer layer has two structural shells, white is a polymer skeleton layer, and black is a photothermal conversion material layer.
FIG. 2 is an SEM photograph of a cross section of the outer protrusion of the solar evaporator obtained in example 1; as can be seen from fig. 2: the solar evaporator obtained by the invention is externally provided with a porous high-molecular framework inner layer and a compact photothermal conversion layer, and the porous structure constructs a capillary channel which can convey moisture for an evaporation layer; the dense photothermal conversion layer can efficiently absorb solar energy.
Detailed Description
The solar evaporator comprises an air part with a hollow inner part and an outer shell part, wherein the outer shell part is obtained by combining a porous polymer framework (contacted with the inner part) for providing physical support and a photothermal material (loaded on the polymer framework) for providing photothermal conversion capacity, and preferably, the shell part has a convex surface structure. The SEM structure of the picture of the solar evaporator and the section of the shell layer (as shown in figures 1 and 2) shows that: the evaporator is internally of a hollow structure, and the outer shell layer is of a double-layer structure.
Example 1:
a hollow convex melamine formaldehyde resin foam-based solar evaporator is prepared by the following steps:
adding 45mg of graphene powder into 15ml of deionized water, and carrying out ultrasonic treatment for 30 minutes to uniformly disperse the graphene powder; adding 140mg of potassium hydroxide crystals into the graphene water suspension, and mechanically stirring for 5 minutes to prepare uniform slurry; placing 15ml of slurry and melamine formaldehyde resin foam into a lining of a hydrothermal reaction kettle, placing the lining of the reaction kettle into the reaction kettle, and reacting for 5 hours at 180 ℃ under a closed condition; then taking out the product after cooling in an air environment, and obtaining a solar evaporator sample 1 after freeze drying, wherein the interior of the sample is of a hollow structure, the exterior of the sample is of a two-layer structure, and the surface of a shell layer is convex (see fig. 1 and 2); the thickness of the polymer skeleton in the shell layer of sample 1 was 0.2 mm.
In the preparation process, the addition of potassium hydroxide crystals thickens the graphene suspension, the thickened graphene can wrap melamine formaldehyde resin foam in hydrothermal reaction, and the thickened graphene is further formed in a high-temperature and high-pressure (water is gasified at high temperature to form gas in the hydrothermal reaction, so that high pressure is formed in a closed environment) atmosphere, so that a two-layer structure comprising a melamine formaldehyde resin support layer (which is a porous structure) and a graphene outer layer in sequence from inside to outside is formed; meanwhile, under the high-temperature and high-pressure environment, the melamine formaldehyde resin foam wrapped by the graphene suspension liquid is decomposed to a certain extent, gas is generated, and the gas can be wrapped inside the sample 1, so that a hollow convex structure is formed.
By the same method, the reaction time was changed to 6 hours, and sample S1 having shells of different thicknesses was prepared, and the thickness of the polymer skeleton of the shell in sample S1 was 1 mm.
Testing the evaporation performance of the material under the irradiation of simulated sunlight; sample 1 was exposed to simulated sunlight (1KW m)-2) 1.476kg m can be obtained-2h-1And a water evaporation efficiency of 92.9%. Sample S1 was exposed to simulated sunlight (1KW m)-2) 1.386kg m can be obtained-2h-1And an evaporation efficiency of 87.2% for water. The result shows that the water evaporation rate is decreased due to the thin thickness, because the polymer skeleton serves to supply water to the evaporation surface by capillarity, but if the thickness is too low and the water supply amount is insufficient, the evaporation surface does not have enough water for evaporation, and the water evaporation rate is decreased.
Fig. 1b is a view showing the form of an evaporator, fig. 1c is a sectional view showing the evaporator, white polymer skeleton portions are used to supply moisture to an evaporation surface, and black photothermal material portions are used to perform efficient photothermal conversion.
FIG. 2 shows sample 1 brittle in liquid nitrogen, with SEM measurements taken on any cross section. The porous morphology of the polymer skeleton and the compact photothermal conversion layer can be seen, and the capillary channel is constructed by the porous structure and can convey moisture for the evaporation layer. The dense photothermal conversion layer can efficiently absorb solar energy.
Example 2:
a hollow convex melamine formaldehyde resin foam-based solar evaporator is prepared by the following steps:
adding 45mg of graphene powder into 15ml of deionized water, and carrying out ultrasonic treatment for 30 minutes to uniformly disperse the graphene powder; adding 102mg of sodium hydroxide crystals into the graphene aqueous suspension, and mechanically stirring for 5 minutes to prepare uniform slurry; placing 15ml of slurry and polyurethane foam in a lining of a hydrothermal reaction kettle, placing the lining of the reaction kettle in the reaction kettle, and reacting for 5 hours at 180 ℃; and taking out the product after cooling in an air environment, and freeze-drying to obtain a hollow convex solar evaporator sample 2 with a multilayer structure.
Testing the evaporation performance of the material under the irradiation of simulated sunlight; sample 2Under the irradiation of simulated sunlight (1KW m)-2) 1.378kg m can be obtained-2h-1And an evaporation efficiency of 86.7% for water.
Example 3:
a hollow convex polyurethane foam-based solar evaporator is prepared according to the following steps:
adding 45mg of graphene powder into 15ml of deionized water, and carrying out ultrasonic treatment for 30 minutes to uniformly disperse the graphene powder; adding 140mg of potassium hydroxide crystals into the graphene water suspension, and mechanically stirring for 5 minutes to prepare uniform slurry; placing 15ml of slurry and polyurethane foam in a lining of a hydrothermal reaction kettle, placing the lining of the reaction kettle in the reaction kettle, and reacting for 3 hours at 200 ℃; and taking out the product after cooling in an air environment, and freeze-drying to obtain a hollow convex solar evaporator sample 3 with a multilayer structure.
Testing the evaporation performance of the material under the irradiation of simulated sunlight; sample 3 was exposed to simulated sunlight (1KW m)-2) 1.280kg m can be obtained-2h-1And 80.6% water evaporation efficiency.
Claims (15)
1. A solar evaporator is characterized in that the interior of the solar evaporator is of a hollow structure, the exterior of the solar evaporator is of a shell layer with a two-layer structure, and the two-layer structure is respectively an inner layer of a porous polymer framework and an outer layer formed by a photo-thermal material; the solar evaporator is prepared by adopting the following preparation method: firstly, preparing a photo-thermal material and water into a suspension; adding alkali into the suspension, and uniformly mixing to obtain mixed slurry; then, carrying out high-temperature hydrothermal reaction on the mixed slurry and the clean and dry high-molecular foam under a closed condition to form a material with a hollow structure; finally, freeze drying to obtain the solar evaporator; wherein, the high temperature in the hydrothermal reaction means that the temperature is more than 100 ℃ and is less than the decomposition temperature of the macromolecular foam.
2. The solar evaporator according to claim 1, wherein the outer layer surface of the shell layer has a convex structure.
3. Solar evaporator according to claim 1 or 2,
the polymer in the porous polymer skeleton inner layer is selected from: one of polyurethane foam, polyimide foam, polystyrene foam, melamine formaldehyde resin foam, polyvinyl chloride foam, or polyethylene foam.
4. The solar evaporator according to claim 1 or 2, characterized in that said photothermal material is selected from: carbon nanotube, graphene, polydopamine, carbon black or noble metal.
5. The solar evaporator according to claim 1 or 2, wherein the thickness of the inner layer of the porous polymer skeleton is not less than 0.1 mm.
6. The solar evaporator according to claim 5, wherein the thickness of the porous polymer skeleton inner layer is 0.1-2 mm.
7. The solar evaporator according to claim 6, wherein the thickness of the porous polymer skeleton inner layer is 0.2-1 mm.
8. The method for manufacturing a solar evaporator according to any one of claims 1 to 7, comprising: firstly, preparing a photo-thermal material and water into a suspension; adding alkali into the suspension, and uniformly mixing to obtain mixed slurry; then, carrying out high-temperature hydrothermal reaction on the mixed slurry and the clean and dry high-molecular foam under a closed condition to form a material with a hollow structure; finally, freeze drying to obtain the solar evaporator; wherein, the high temperature in the hydrothermal reaction means that the temperature is more than 100 ℃ and is less than the decomposition temperature of the macromolecular foam.
9. Method for the production of a solar evaporator according to claim 8, characterised in that 3mg/ml < concentration of the photo-thermal material in the suspension < 8 mg/ml.
10. The method of claim 8, wherein the alkali is at least one of sodium hydroxide, potassium hydroxide, copper hydroxide, sodium carbonate, and sodium bicarbonate.
11. The method of claim 8, wherein the polymer in the porous polymer skeleton inner layer is selected from the group consisting of: one of polyurethane foam, polyimide foam, polystyrene foam, melamine formaldehyde resin foam, polyvinyl chloride foam, or polyethylene foam.
12. The method of claim 8, wherein the photothermal material is selected from the group consisting of: carbon nanotube, graphene, polydopamine, carbon black or noble metal.
13. The preparation method of the solar evaporator according to claim 8, wherein the mass ratio of the raw materials is as follows: 30-100 parts of polymer foam, 10-50 parts of photo-thermal material and 30-50 parts of alkali.
14. The method for manufacturing a solar evaporator according to claim 8, wherein the mixed slurry is manufactured by the following method: the base was added while stirring the suspension, and the temperature of the system was kept below 10 ℃ during stirring.
15. An application of a solar evaporator in seawater desalination, sewage treatment or water purification, wherein the solar evaporator is the evaporator of any one of claims 1 to 7 or the evaporator prepared by the preparation method of any one of claims 8 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011966.0A CN111170393B (en) | 2020-01-07 | 2020-01-07 | Solar evaporator with hollow structure and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011966.0A CN111170393B (en) | 2020-01-07 | 2020-01-07 | Solar evaporator with hollow structure and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111170393A CN111170393A (en) | 2020-05-19 |
| CN111170393B true CN111170393B (en) | 2021-02-26 |
Family
ID=70623889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010011966.0A Active CN111170393B (en) | 2020-01-07 | 2020-01-07 | Solar evaporator with hollow structure and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111170393B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090950B (en) * | 2021-03-26 | 2022-07-12 | 南京理工大学 | Heat collection-heat storage type oil conveying pipeline heating system based on photo-thermal conversion |
| CN113416342B (en) * | 2021-06-18 | 2022-06-24 | 四川大学 | Polymer membrane with hierarchical porous structure and preparation method and application thereof |
| CN113860410B (en) * | 2021-09-30 | 2022-06-10 | 海南大学 | Full-angle solar efficient driving water evaporation bionic material and preparation method thereof |
| CN114181428B (en) * | 2021-12-09 | 2022-12-23 | 四川大学 | Polymer composite membrane with piezoelectric property and preparation and application thereof |
| CN115282892B (en) * | 2022-08-04 | 2023-09-29 | 淮阴工学院 | Preparation method of sandwich type long-acting salt-resistant gel photo-thermal evaporator |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162174A (en) * | 2014-07-14 | 2014-11-26 | 东华大学 | Preparation of nano particles with gold coating iron oxide star-shaped core-shell structure, imaging and thermotherapy application thereof |
| CN107235591A (en) * | 2017-06-28 | 2017-10-10 | 中国科学院合肥物质科学研究院 | A kind of application of photothermal deformation copper sulfide laminated film in water process |
| CN109232968A (en) * | 2018-07-23 | 2019-01-18 | 桂林电子科技大学 | A kind of preparation method and applications of three-dimensional sponge base photothermal conversion materiat |
| CN109652012A (en) * | 2019-01-24 | 2019-04-19 | 北京工业大学 | A kind of preparation method and application from the efficient photothermal conversion sea water desalination material of floating |
| CN110001146A (en) * | 2019-05-28 | 2019-07-12 | 江苏金羿射日新材料科技有限公司 | A kind of method and apparatus that water wetted material acceleration is evaporated brine |
| CN110026249A (en) * | 2019-04-17 | 2019-07-19 | 天津大学 | A kind of atom level " micro-nano catalysis capsule " for room temperature degradation VOCs |
| KR20190097379A (en) * | 2018-02-12 | 2019-08-21 | 경희대학교 산학협력단 | Method for Patterned Metal Oxide Nanorods |
| CN110182789A (en) * | 2019-05-06 | 2019-08-30 | 浙江大学 | A kind of extinction heat-insulation integrative photo-thermal evaporation material and its preparation method and application |
| CN110257811A (en) * | 2019-07-24 | 2019-09-20 | 哈尔滨工业大学 | A kind of preparation method of the Ni-based optical-thermal conversion material of foam |
| CN110510690A (en) * | 2019-08-28 | 2019-11-29 | 山东科技大学 | A kind of hole optical hotting mask and its preparation and application with salt resistance precipitation performance |
| CN110607577A (en) * | 2019-09-29 | 2019-12-24 | 中国科学院苏州纳米技术与纳米仿生研究所 | Graphene aerogel hollow fiber, preparation method and application thereof |
-
2020
- 2020-01-07 CN CN202010011966.0A patent/CN111170393B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162174A (en) * | 2014-07-14 | 2014-11-26 | 东华大学 | Preparation of nano particles with gold coating iron oxide star-shaped core-shell structure, imaging and thermotherapy application thereof |
| CN107235591A (en) * | 2017-06-28 | 2017-10-10 | 中国科学院合肥物质科学研究院 | A kind of application of photothermal deformation copper sulfide laminated film in water process |
| KR20190097379A (en) * | 2018-02-12 | 2019-08-21 | 경희대학교 산학협력단 | Method for Patterned Metal Oxide Nanorods |
| CN109232968A (en) * | 2018-07-23 | 2019-01-18 | 桂林电子科技大学 | A kind of preparation method and applications of three-dimensional sponge base photothermal conversion materiat |
| CN109652012A (en) * | 2019-01-24 | 2019-04-19 | 北京工业大学 | A kind of preparation method and application from the efficient photothermal conversion sea water desalination material of floating |
| CN110026249A (en) * | 2019-04-17 | 2019-07-19 | 天津大学 | A kind of atom level " micro-nano catalysis capsule " for room temperature degradation VOCs |
| CN110182789A (en) * | 2019-05-06 | 2019-08-30 | 浙江大学 | A kind of extinction heat-insulation integrative photo-thermal evaporation material and its preparation method and application |
| CN110001146A (en) * | 2019-05-28 | 2019-07-12 | 江苏金羿射日新材料科技有限公司 | A kind of method and apparatus that water wetted material acceleration is evaporated brine |
| CN110257811A (en) * | 2019-07-24 | 2019-09-20 | 哈尔滨工业大学 | A kind of preparation method of the Ni-based optical-thermal conversion material of foam |
| CN110510690A (en) * | 2019-08-28 | 2019-11-29 | 山东科技大学 | A kind of hole optical hotting mask and its preparation and application with salt resistance precipitation performance |
| CN110607577A (en) * | 2019-09-29 | 2019-12-24 | 中国科学院苏州纳米技术与纳米仿生研究所 | Graphene aerogel hollow fiber, preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111170393A (en) | 2020-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111170393B (en) | Solar evaporator with hollow structure and preparation method and application thereof | |
| Liang et al. | Construction and application of biochar-based composite phase change materials | |
| Li et al. | Shape-controlled fabrication of cost-effective, scalable and anti-biofouling hydrogel foams for solar-powered clean water production | |
| CN109603596B (en) | Photo-thermal seawater desalination membrane made of metal organic framework material | |
| Wu et al. | Cellulose‐based Interfacial Solar Evaporators: Structural Regulation and Performance Manipulation | |
| CN113549228B (en) | Solar evaporation body based on controllable closed-pore hydrogel and preparation method thereof | |
| CN114405421B (en) | Cellulose nanofiber aerogel photothermal interface water evaporation material and preparation method thereof | |
| CN111977729B (en) | Polyurethane foam-based seawater desalination material and preparation method thereof | |
| CN111204755A (en) | Preparation method and application of biomass porous carbon material | |
| CN113152078A (en) | Photo-thermal composite material based on carbon fiber cloth and preparation method and application thereof | |
| CN113024884B (en) | Composite quaternary hydrogel capable of realizing high solar evaporation rate and preparation method thereof | |
| Xu et al. | A simple, flexible, and porous polypyrrole‐wax gourd evaporator with excellent light absorption for efficient solar steam generation | |
| Wang et al. | Review on bio-based shape-stable phase change materials for thermal energy storage and utilization | |
| Song et al. | Biomass-derived porous carbon aerogels for effective solar thermal energy storage and atmospheric water harvesting | |
| CN214570875U (en) | Solar evaporation system capable of ensuring high evaporation rate | |
| Jin et al. | Chitosan/multilayered MXene Nanocomposites Loaded in 3D Nitrogen‐Doped Carbon Networks for Seawater Desalination with Highly Efficient Photothermal Conversion | |
| Zhu et al. | Composite membranes based on self-crosslinking polyelectrolyte-wrapped ZIF-8/CNT nanoparticles for solar steam evaporation | |
| CN113929085A (en) | Three-dimensional patterned porous graphene black body and preparation method and application thereof | |
| CN112794307A (en) | Preparation method of double-layer integral photo-thermal conversion material | |
| Ma et al. | Recent Progress on Emerging Porous Materials for Solar‐Driven Interfacial Water Evaporation | |
| CN116751567B (en) | Biological carbon photo-thermal composite shaping phase change material and preparation method and application thereof | |
| CN115403095B (en) | Preparation method and application of salt-repellent sponge-based/cheap carbon photo-thermal composite material | |
| Cheng et al. | Construction of a reduced graphene oxide/polyvinyl alcohol (PVA)-natural rubber (NR) porous rubber sponge toward solar-driven sustainable water purification | |
| Jing et al. | Fe-based metal organic frameworks decorated wood for efficient solar-driven interfacial water evaporation | |
| CN114573064B (en) | Preparation method of arched salt deposit prevention biochar-base polymer/metal mesh hybrid membrane |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |