CN111892742A - Photo-thermal conversion polymer solar energy absorption material and preparation method and application thereof - Google Patents
Photo-thermal conversion polymer solar energy absorption material and preparation method and application thereof Download PDFInfo
- Publication number
- CN111892742A CN111892742A CN202010709019.9A CN202010709019A CN111892742A CN 111892742 A CN111892742 A CN 111892742A CN 202010709019 A CN202010709019 A CN 202010709019A CN 111892742 A CN111892742 A CN 111892742A
- Authority
- CN
- China
- Prior art keywords
- absorbing material
- natural latex
- latex foam
- photothermal conversion
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 60
- 229920000642 polymer Polymers 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 title claims abstract description 30
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000011358 absorbing material Substances 0.000 claims abstract description 36
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims abstract description 35
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229920001821 foam rubber Polymers 0.000 claims abstract description 32
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 16
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 10
- 239000006261 foam material Substances 0.000 claims abstract description 8
- 238000002791 soaking Methods 0.000 claims abstract description 5
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 239000013535 sea water Substances 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000011033 desalting Methods 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 9
- 239000002114 nanocomposite Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 12
- 238000010998 test method Methods 0.000 description 12
- 238000010612 desalination reaction Methods 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 7
- 229920000128 polypyrrole Polymers 0.000 description 6
- 229910052724 xenon Inorganic materials 0.000 description 5
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 4
- 230000031700 light absorption Effects 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 238000001931 thermography Methods 0.000 description 2
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/40—Impregnation
- C08J9/405—Impregnation with polymerisable compounds
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/10—Details of absorbing elements characterised by the absorbing material
- F24S70/14—Details of absorbing elements characterised by the absorbing material made of plastics
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2307/00—Characterised by the use of natural rubber
- C08J2307/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
- C08J2479/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
-
- 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
- Y02A20/124—Water 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
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
-
- 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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention belongs to the technical field of nano composite materials, and particularly relates to a photo-thermal conversion polymer solar energy absorption material, and a preparation method and application thereof. The method comprises the following steps: 1) obtaining a clean and dry natural latex foam material; 2) soaking the natural latex foam obtained in the step 1) in a pyrrole solution, then dropwise adding an ammonium persulfate solution into the pyrrole solution under an ice bath condition, and fully reacting until the solution and the natural latex foam become black, thereby obtaining the photo-thermal conversion polymer solar energy absorbing material. The obtained absorbing material is put in water and can evaporate solar water under illumination.
Description
Technical Field
The invention belongs to the technical field of nano composite materials, and particularly relates to a photo-thermal conversion polymer solar energy absorption material, and a preparation method and application thereof.
Background
In the 21 st century, the problems of energy crisis, environmental pollution and the like are increasingly aggravated, and people need to accelerate the development and utilization of clean and renewable resources urgently. Solar energy, as a representative of such energy sources, has been widely focused and strongly supported by various industries in society in the past decades due to its nearly unlimited storage and its characteristics of cleanliness and no pollution. However, solar energy is still a small percentage of the energy currently used by humans. There are still huge development spaces and research and development opportunities in developing new solar energy utilization ways, improving the existing solar energy utilization efficiency, reducing the solar energy conversion cost, expanding the solar energy conversion scale and the like. Among a series of evolving technologies, solar steam-generated photothermal conversion has proven to be a promising green strategy to mitigate water shortages.
Photothermal conversion is an effective means of harnessing solar radiation energy through reflection, absorption and conversion to temperatures high enough to meet different load requirements. However, the current solar steam-generated photothermal process is inefficient due to weak light absorption and large heat loss. To reduce heat losses, a modest increase in evaporation efficiency is achieved with volumetric solar absorption methods of optical nanofluids. Subsequently, a new concept called "air-water interface solar heating", i.e., a new concept of suppressing heat loss of water dispersion, was proposed. The unique design and application of photothermal nanomaterials and evaporation systems has been invested in many advanced designs and applications using the concept of interfacial heating. As a basic thermal process, solar steam is used not only to produce clean water, but also to drive important industrial processes for a large variety of applications around the world. For example, power generation, sterilization, sewage treatment, oil-water separation, uranium extraction from seawater, and the like. This indicates that solar steam generation technology has great potential in increasing fresh water and green energy production. In practical applications, the long-term stability of solar evaporators in the treatment of real water sources (e.g. sea water, river water, sewage, industrial polluted water, underground water, rain water, snow water) has always been a significant challenge. The photo-thermal conversion polymer solar energy absorbing material is prepared by utilizing leftover materials and waste materials of a natural latex mattress as a substrate for synthesizing the photo-thermal conversion polymer solar energy absorbing material and synthesizing photo-thermal polymer polypyrrole in situ. The preparation process is simple, the reaction condition is mild, and the preparation cost is low. The absorption material has excellent light absorption rate, photo-thermal performance and physical and chemical resistance; the porosity is high, and a channel is provided for water transmission; low thermal conductivity and good thermal positioning performance; the steam evaporation rate remained stable after 20 cycles. Therefore, it is very significant that the in-situ polymerization method can be used for simply and rapidly preparing the photothermal conversion solar energy absorbing material with high efficiency and low cost.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a photothermal conversion polymer solar energy absorption material and a preparation method and application thereof based on the stability of a photothermal material. The natural latex foam has the advantages of rich pores, excellent high elasticity, wide band absorption, easiness in preparation, low cost and the like. By combining photo-thermal high-molecular polypyrrole and natural latex foam, the stable and efficient integrated solar evaporator is prepared. The method is applied to the aspects of seawater desalination, water treatment, solar steam generation and the like.
The technical scheme provided by the invention is as follows:
a preparation method of a photo-thermal conversion polymer solar energy absorption material comprises the following steps:
1) obtaining a clean and dry natural latex foam material;
2) soaking the natural latex foam obtained in the step 1) in a pyrrole solution under an ice bath condition, then dropwise adding an ammonium persulfate solution into the pyrrole solution, and fully reacting until the solution and the natural latex foam become black, thereby obtaining the photo-thermal conversion polymer solar energy absorbing material.
The inventor finds that polypyrrole can directly grow on the surface of natural latex foam, and cannot fall off and separate.
In the technical scheme, the natural latex foam is used as a three-dimensional macroporous polymer foam material, the diameter of macropores is 10-500 mu m, the porosity is 90-99%, the natural latex foam has excellent resilience, pores of the natural latex foam can be used as a water transmission channel, and the natural latex foam is strong in physical and chemical corrosion resistance and can be repeatedly used. The obtained absorbing material is put in water and is subjected to solar water evaporation under illumination.
Specifically, in the step 2), the concentration of the pyrrole solution is 0.1-1%; the solvent of the pyrrole solution is deionized water.
Specifically, in the step 2), the volume usage ratio of the natural latex foam to the pyrrole solution is 1: 1.5-3.
Specifically, in the step 2), the concentration of the ammonium persulfate solution is 10-200 mg/mL; the solvent of the ammonium persulfate solution is deionized water.
Specifically, the volume usage ratio of the natural latex foam to the ammonium persulfate solution is 1: 1-1.5.
Specifically, the reaction time is 1-8 h.
Specifically, in the step 1), the diameter of a large hole of the natural latex foam material is 10-500 μm, and the porosity is 90-99%; the natural latex foam material is commercial natural latex mattress leftover material. Commercial latex foam was cut into pieces, repeatedly washed with ethanol and deionized water, and placed in a vacuum oven for drying.
The leftover materials of commercial natural latex mattresses are used for waste utilization and are used as the substrate of the synthetic photothermal conversion polymer solar energy absorbing material. And repeatedly cleaning the substrate with ethanol and deionized water for more than three times, and drying until the water content is less than 0.1%, namely cleaning and drying.
Specifically, in the step 2), the natural latex foam obtained in the step 1) is extruded and then immersed in a pyrrole solution for soaking. The degree of extrusion is a volume reduction of more than 20%.
The stirring time is 0.5-3 hours.
The invention also provides the photothermal conversion polymer solar energy absorbing material prepared by the preparation method of the photothermal conversion polymer solar energy absorbing material.
The thermal conductivity of the photo-thermal conversion polymer solar energy absorbing material provided by the invention is 0.2-0.3W m-1K-1, is far lower than the thermal conductivity of water (0.6W m-1K-1), and has excellent thermal positioning and heat preservation performance.
In addition, the material contains four elements of C, O, N and S; in the visible spectral range, the light absorption is about 95.24%; the water-soluble hydrophilic coating has hydrophilicity and a contact angle of 77.49 degrees; has good tensile property and elongation at break of 444 percent.
The invention also provides application of the photo-thermal conversion polymer solar energy absorption material, which is used for wastewater purification or seawater desalination.
The photo-thermal conversion polymer solar energy absorbing material provided by the invention is used for wastewater purification or seawater desalination, and has the following properties:
at 1sun, the temperature can be raised by 9.3 ℃ for 4-5min, and after 30 min, the temperature reaches the maximum temperature of 36 ℃.
At 1sun, the water evaporation rate was 1.76kg/m2H, the photothermal conversion efficiency was 98%.
The invention has the following advantages and positive effects:
1. the invention selects the leftover materials of the natural latex foam mattress, utilizes wastes, and takes the leftover materials as the substrate of the synthetic photo-thermal conversion polymer solar energy absorbing material, and the raw material natural latex for preparing the natural latex foam is green and environment-friendly, and is an environment-friendly polymer material.
2. The natural latex foam selected by the invention has excellent high elasticity, contains abundant three-dimensional macroporous pores, can provide a channel for water transmission, and has good thermal positioning performance due to low thermal conductivity.
3. The prepared photo-thermal conversion polymer solar energy absorbing material has a rough surface, can enable sunlight to be refracted on the surface for multiple times, and the polypyrrole photo-thermal conversion layer synthesized by the in-situ polymerization method has excellent light absorption rate and can effectively capture sunlight.
4. The photo-thermal conversion polymer solar energy absorbing material prepared by the invention can desalt seawater, purify rainwater, snow water and lake water. By combining with solar energy, a sustainable development green strategy is provided for wastewater treatment, clean water production and water resource shortage relief.
5. The photo-thermal conversion polymer solar energy absorbing material prepared by the invention has excellent physical and chemical resistance and salt resistance, and the steam evaporation rate can still be kept stable after circulation for 20 times.
Drawings
FIG. 1 shows a simple flow chart for synthesizing a photothermal conversion polymer solar absorbing material;
FIG. 2 shows an SEM image of a photothermal conversion polymeric solar absorber material;
FIG. 3 shows an XPS picture of a photothermal conversion polymeric solar absorber material;
FIG. 4 shows a thermal conductivity picture of a photothermal conversion polymeric solar absorber material;
FIG. 5 shows the mass loss of the photothermal conversion polymeric solar absorber material under different illumination intensities;
FIG. 6 shows an infrared thermal imaging of a photothermal conversion polymeric solar absorber material under one sun's illumination;
FIG. 7 is a graph showing the comparison of the ion concentrations before and after the photothermal conversion polymeric solar absorbing material purifies snow water, rain water, and lake water;
FIG. 8 shows a comparison graph of ion concentrations before and after seawater desalination by photothermal conversion polymeric solar absorber.
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
Example 1
Preparation of photo-thermal conversion polymer solar energy absorption material
1) The latex foam was completely immersed in a 1% concentration of pyrrole solution for 2 hours under ice-bath conditions.
2) A solution of ammonium persulfate at a concentration of 0.16g/mL was added dropwise to the beaker to initiate polymerization of the pyrrole in situ on the surface of the natural latex foam.
3) And removing redundant polypyrrole by using deionized water after the reaction is finished, thus obtaining the photo-thermal conversion polymer solar energy absorbing material.
Confirmation of polypyrrole:
FIG. 2 shows an SEM image of a photothermal conversion polymeric solar absorber material;
fig. 3 shows XPS images of the photothermal conversion polymer solar absorber, which contains four elements, C, N, O, and S, as shown in the figure.
Example 2
The method for monitoring the mass loss of the photo-thermal conversion polymer solar energy absorbing material under illumination by adopting an electronic balance comprises the following steps:
1) turning on a xenon lamp light source, and respectively adjusting the light intensity to 0.5 sun;
2) placing the prepared photo-thermal conversion polymer solar energy absorbing material in a surface dish with water;
3) placing the device on an electronic balance, and recording the mass loss of the photothermal conversion polymer solar energy absorbing material under 0.5sun by using a computer respectively to obtain the result as shown in figure 4;
example 3
The test method of example 1 was followed except that the illumination intensity of the xenon lamp light source was adjusted to 1sun, and the other conditions were not changed, to obtain the results shown in FIG. 4;
example 4
The test method of example 1 was followed except that the illumination intensity of the xenon lamp light source was adjusted to 2sun, and the other conditions were not changed, to obtain the results shown in FIG. 4;
example 5
The test method of example 1 was followed except that the illumination intensity of the xenon lamp light source was adjusted to 3sun, and the other conditions were not changed, to obtain the results shown in FIG. 4;
in fig. 4, the light intensity corresponding to each curve increases from top to bottom. It can be seen that the material can provide effective water evaporation at different light intensities.
Example 6
The thermal conductivity of the photothermal conversion polymeric solar energy absorbing material was measured by sandwiching the sample between two glass slides by the following steps:
1) setting the heating temperature of the heating table to be 30 ℃, and respectively monitoring three interfaces of the photo-thermal conversion polymer solar energy absorption material by adopting thermocouples: (Steady state temperature gradient profiles for the heated platen-bottom glass (T1), bottom glass-foam sample (T2), and top glass-foam sample (T3.) the heat transfer rate, q, can be calculated by Fourier equation:
wherein K1,d1And d2Respectively, the thermal conductivity (1.05 W.m)-1·K-1) Thickness of glass slide (3mm) and foam sample (25 mm).
2) The formula for the thermal conductivity of the sample foam can be calculated by the following formula:
the calculation results are shown in fig. 5.
Example 7
The results shown in FIG. 5 were obtained by following the test method of example 6 except that the temperature of the heating stage was set to 40 ℃ and the other conditions were not changed.
Example 8
The test method of example 6 was carried out except that the temperature of the heating stage was set to 50 ℃ and the other conditions were not changed, to obtain the results shown in FIG. 5.
Example 9
The test method of example 6 was carried out except that the temperature of the heating stage was set to 60 ℃ and the other conditions were not changed, to obtain the results shown in FIG. 5.
Example 10
The test method of example 6 was carried out except that the temperature of the heating stage was set to 70 ℃ and the other conditions were not changed, to obtain the results shown in FIG. 5.
Example 11
The test method of example 6 was carried out except that the temperature of the heating stage was set to 80 ℃ and the other conditions were not changed, to obtain the results shown in FIG. 5.
Example 12
The test method of example 6 was carried out except that the temperature of the heating stage was set to 90 ℃ and the other conditions were not changed, to obtain the results shown in FIG. 5.
Example 13
The test method of example 6 was carried out except that the temperature of the heating stage was set to 100 ℃ and the other conditions were not changed, to obtain the results shown in FIG. 5.
Example 14
The test method of example 6 was carried out except that the temperature of the heating stage was set to 110 ℃ and the other conditions were not changed, to obtain the results shown in FIG. 5.
As can be seen from fig. 5, the material has low thermal conductivity, excellent thermal management capability, and greatly reduces heat loss when water is evaporated.
Example 15
The method comprises the following steps of monitoring the temperature change of the high-molecular solar energy absorbing material under the sun illumination by adopting an infrared thermal imager:
1) placing the prepared photo-thermal conversion polymer solar energy absorbing material in a surface dish with water;
2) turning on a xenon lamp light source, and adjusting the light intensity to 1 sun;
3) recording infrared thermal imaging pictures of the high-molecular solar energy absorbing material at 0.1, 4 and 30 minutes;
as shown in FIG. 6, at 1sun, the temperature may rise by 9.3 ℃ for 4-5min and reach a maximum temperature of 36 ℃ after 30 min.
Example 16
Quantitative analysis of snow using an icp-aes analyzerNa before and after purification of water, rain water and lake water+,Ca2+,Mg2+And K+Ion concentration of (3), Na as shown in FIG. 7, by solar steam purification+,Ca2+,Mg2+And K+Is much lower than the initial concentration.
Example 17
According to the test method of 16, the tested water body is changed into seawater before and after desalination, and then the test B is carried out3+The ion concentration of (1) is, as shown in FIG. 8, the left side of each column is before desalination, the right side is after desalination, desalination is performed by solar steam, Na+,Ca2+,Mg2+,K+And B3+Is much lower than the initial concentration.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The preparation method of the photo-thermal conversion polymer solar energy absorption material is characterized by comprising the following steps of:
1) obtaining a clean and dry natural latex foam material;
2) soaking the natural latex foam obtained in the step 1) in a pyrrole solution, then dropwise adding an ammonium persulfate solution into the pyrrole solution under an ice bath condition, and fully reacting until the solution and the natural latex foam become black, thereby obtaining the photo-thermal conversion polymer solar energy absorbing material.
2. The method for preparing the photothermal conversion polymeric solar absorbing material according to claim 1, wherein: in the step 2), the mass concentration of the pyrrole solution is 0.1-1%; the solvent of the pyrrole solution is deionized water.
3. The method for preparing the photothermal conversion polymeric solar absorbing material according to claim 2, wherein: in the step 2), the volume usage ratio of the natural latex foam to the pyrrole solution is 1: 1.5-3.
4. The method for preparing the photothermal conversion polymeric solar absorbing material according to claim 1, wherein: in the step 2), the concentration of the ammonium persulfate solution is 10-200 mg/mL; the solvent of the ammonium persulfate solution is deionized water.
5. The method for preparing the photothermal conversion polymeric solar absorbing material according to claim 4, wherein: the volume usage ratio of the natural latex foam to the ammonium persulfate solution is 1: 1-1.5.
6. The method for preparing the photothermal conversion polymeric solar absorbing material according to claim 1, wherein: in the step 2), the reaction time is 1-8 h.
7. The method for preparing a photothermal conversion polymeric solar absorbing material according to any one of claims 1 to 5, wherein: in the step 1), the diameter of a large hole of the natural latex foam material is 10-500 mu m, and the porosity is 90-99%; the natural latex foam material is commercial natural latex mattress leftover material.
8. The method for preparing a photothermal conversion polymeric solar absorbing material according to any one of claims 1 to 5, wherein: in the step 2), the natural latex foam obtained in the step 1) is extruded and then immersed in a pyrrole solution for soaking.
9. The photothermal conversion polymeric solar absorbing material produced by the method for producing photothermal conversion polymeric solar absorbing material according to any one of claims 1 to 8.
10. The use of the photothermal conversion polymeric solar absorber material according to claim 9, wherein: used for purifying waste water or desalting sea water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010709019.9A CN111892742A (en) | 2020-07-22 | 2020-07-22 | Photo-thermal conversion polymer solar energy absorption material and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010709019.9A CN111892742A (en) | 2020-07-22 | 2020-07-22 | Photo-thermal conversion polymer solar energy absorption material and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111892742A true CN111892742A (en) | 2020-11-06 |
Family
ID=73189871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010709019.9A Pending CN111892742A (en) | 2020-07-22 | 2020-07-22 | Photo-thermal conversion polymer solar energy absorption material and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111892742A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112897618A (en) * | 2021-01-25 | 2021-06-04 | 浙江大学 | Three-dimensional photothermal conversion material capable of efficiently treating saline water and wastewater, device and method |
| CN112940339A (en) * | 2021-02-02 | 2021-06-11 | 四川大学 | Preparation and use method of flame-retardant photothermal conversion polymer foam |
| CN113549228A (en) * | 2021-08-04 | 2021-10-26 | 中国海洋大学 | Solar energy evaporation body based on controllable closed-pore hydrogel and preparation method thereof |
| CN113860411A (en) * | 2021-10-14 | 2021-12-31 | 吉林农业大学 | Oil body-polypyrrole solar energy absorbing material and photo-thermal evaporation water purifier |
| CN113968994A (en) * | 2021-11-19 | 2022-01-25 | 江南大学 | Photo-thermal biomass aerogel for solar interface evaporation and preparation method thereof |
| CN115404698A (en) * | 2022-07-22 | 2022-11-29 | 湖北大学 | Solar energy absorbing material based on biomass melanin ink balls and preparation method and application thereof |
| CN115418858A (en) * | 2022-09-22 | 2022-12-02 | 浙江大学 | Anti-oil-stain interfacial water purification fabric and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679865A (en) * | 2018-03-22 | 2018-10-19 | 中国科学技术大学 | The preparation method of two-dimentional conducting polymer sun absorber of light for solar energy water evaporation of vapours |
| CN110511558A (en) * | 2019-09-02 | 2019-11-29 | 哈尔滨工业大学（威海） | A kind of preparation method of the sea water desalination material based on polyurethane foam |
-
2020
- 2020-07-22 CN CN202010709019.9A patent/CN111892742A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679865A (en) * | 2018-03-22 | 2018-10-19 | 中国科学技术大学 | The preparation method of two-dimentional conducting polymer sun absorber of light for solar energy water evaporation of vapours |
| CN110511558A (en) * | 2019-09-02 | 2019-11-29 | 哈尔滨工业大学（威海） | A kind of preparation method of the sea water desalination material based on polyurethane foam |
Non-Patent Citations (1)
| Title |
|---|
| XU, YOU等: "Flexible and Efficient Solar Thermal Generators Based on Polypyrrole Coated Natural Latex Foam for Multimedia Purification", 《ACS SUSTAINABLE CHEMISTRY & ENGINEERING》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112897618B (en) * | 2021-01-25 | 2022-04-12 | 浙江大学 | Three-dimensional photothermal conversion material capable of efficiently treating saline water and wastewater, device and method |
| CN112897618A (en) * | 2021-01-25 | 2021-06-04 | 浙江大学 | Three-dimensional photothermal conversion material capable of efficiently treating saline water and wastewater, device and method |
| CN112940339B (en) * | 2021-02-02 | 2023-01-31 | 四川大学 | Preparation and use method of flame-retardant photothermal conversion polymer foam |
| CN112940339A (en) * | 2021-02-02 | 2021-06-11 | 四川大学 | Preparation and use method of flame-retardant photothermal conversion polymer foam |
| CN113549228A (en) * | 2021-08-04 | 2021-10-26 | 中国海洋大学 | Solar energy evaporation body based on controllable closed-pore hydrogel and preparation method thereof |
| CN113549228B (en) * | 2021-08-04 | 2022-07-26 | 中国海洋大学 | Solar evaporation body based on controllable closed-pore hydrogel and preparation method thereof |
| CN113860411A (en) * | 2021-10-14 | 2021-12-31 | 吉林农业大学 | Oil body-polypyrrole solar energy absorbing material and photo-thermal evaporation water purifier |
| CN113860411B (en) * | 2021-10-14 | 2023-03-14 | 吉林农业大学 | Oil body-polypyrrole solar energy absorbing material and photo-thermal evaporation water purifier |
| CN113968994B (en) * | 2021-11-19 | 2022-07-05 | 江南大学 | Photo-thermal biomass aerogel for solar interface evaporation and preparation method thereof |
| CN113968994A (en) * | 2021-11-19 | 2022-01-25 | 江南大学 | Photo-thermal biomass aerogel for solar interface evaporation and preparation method thereof |
| CN115404698A (en) * | 2022-07-22 | 2022-11-29 | 湖北大学 | Solar energy absorbing material based on biomass melanin ink balls and preparation method and application thereof |
| CN115404698B (en) * | 2022-07-22 | 2024-04-12 | 湖北大学 | Solar energy absorbing material based on biomass melanin ink balls, and preparation method and application thereof |
| CN115418858A (en) * | 2022-09-22 | 2022-12-02 | 浙江大学 | Anti-oil-stain interfacial water purification fabric and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111892742A (en) | Photo-thermal conversion polymer solar energy absorption material and preparation method and application thereof | |
| Lei et al. | Hierarchical structures hydrogel evaporator and superhydrophilic water collect device for efficient solar steam evaporation | |
| CN110816009B (en) | Photothermal conversion material and preparation method and application thereof | |
| Mu et al. | Strategies for breaking theoretical evaporation limitation in direct solar steam generation | |
| CN110105917B (en) | Photo-thermal composite material and preparation method and application thereof | |
| CN110183572B (en) | Aerogel, preparation method and application of aerogel as solar evaporator | |
| CN110218277B (en) | Double-layer aerogel, preparation method and application of double-layer aerogel as solar evaporator | |
| CN110761078B (en) | Preparation method and application of black body material | |
| Cai et al. | Advances in desalination technology and its environmental and economic assessment | |
| CN114392698B (en) | High-stability photo-thermal water gel sponge and preparation method and application thereof | |
| CN113522030B (en) | Preparation method of three-layer membrane for photo-thermal membrane distillation | |
| Chu et al. | Sustainable self-cleaning evaporators for highly efficient solar desalination using a highly elastic sponge-like hydrogel | |
| CN111186830A (en) | Hollow carbon sphere photo-thermal material and preparation method thereof | |
| Xia et al. | An integrated solar absorber with salt-resistant and oleophobic based on PVDF composite membrane for solar steam generation | |
| Wang et al. | A polyelectrolyte hydrogel coated loofah sponge evaporator based on Donnan effect for highly efficient solar-driven desalination | |
| Zhao et al. | Narrow-bandgap light-absorbing conjugated polybenzobisthiazole: Massive interfacial synthesis, robust solar-thermal evaporation and thermoelectric power generation | |
| Zhu et al. | Excellent dual-photothermal freshwater collector with high performance in large-scale evaporation | |
| CN114525115A (en) | Typha angustifolia based photo-thermal interface evaporation material and preparation method and application thereof | |
| Wang et al. | Preparation of carbon nanotube/cellulose hydrogel composites and their uses in interfacial solar-powered water evaporation | |
| Xu et al. | A simple, flexible, and porous polypyrrole‐wax gourd evaporator with excellent light absorption for efficient solar steam generation | |
| CN116672894A (en) | MXene doped photothermal distillation membrane and preparation method and application thereof | |
| WO2022191948A1 (en) | Farm waste-derived recyclable photothermal evaporator | |
| Li et al. | Highly efficient carbonization of nanocellulose to biocarbon aerogels with ultrahigh light absorption efficiency and evaporation rate as bifunctional solar/electric driven steam generator for water purification | |
| CN114195214B (en) | Method for constructing solar evaporator by using graphene oxide | |
| Arunkumar et al. | Optimization of bamboo-based photothermal interfacial solar evaporator for enhancing water purification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201106 |
|
| RJ01 | Rejection of invention patent application after publication |