CN107604756A - A kind of paper substrate composite light absorption material for realizing efficient photothermal conversion and preparation method thereof - Google Patents
A kind of paper substrate composite light absorption material for realizing efficient photothermal conversion and preparation method thereof Download PDFInfo
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- CN107604756A CN107604756A CN201710684121.6A CN201710684121A CN107604756A CN 107604756 A CN107604756 A CN 107604756A CN 201710684121 A CN201710684121 A CN 201710684121A CN 107604756 A CN107604756 A CN 107604756A
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- light absorption
- composite light
- absorption material
- paper substrate
- substrate composite
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/08—Filter paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
-
- 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
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- Laminated Bodies (AREA)
- Paper (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a kind of paper substrate composite light absorption material for realizing efficient photothermal conversion and preparation method thereof, carbon black pellet in commercialization burnt black ink is deposited on its surface by ultrasound load, preparation method is simple, cost price is cheap, green, obtain the composite light absorption material that a kind of spectral response range is wide, photo-thermal conversion efficiency is high, hydrophily is strong, it is easy to large-scale production and extensive use, the field of existing optothermal material is enriched, has filled up the blank of the technical field；Meanwhile meanwhile, using the efficient photothermal conversion characteristic of paper substrate composite light absorption material of the present invention, available for desalinization application, meet the quick requirement for obtaining pure water of society, also provide a kind of new paragon for solar energy heat utilization.
Description
Technical field：
The present invention relates to photothermal conversion materiat technical field, and in particular to it is a kind of realize efficient photothermal conversion paper substrate it is compound
Light absorbent and preparation method thereof.
Background technology：
At present, energy shortage and problem of environmental pollution are faced, needs badly and finds a kind of environmental protection, the clean energy resource of safety.And too
Positive energy, there is study hotspot that is applied widely, inexhaustible, nexhaustible, and turning into today's society.Solar energy
Using being broadly divided into three directions：Photo-thermal technology application, photovoltaic applications and photochemistry application.For Photo-thermal technology application, mainly with
Based on solar energy thermal-power-generating pattern, the solar radiation of absorption is typically converted into working substance steam by solar thermal collector, then
Steam is done work by pushing turbine, is generated electricity.But because its floor space is wide, needs lens light gathering, therefore invest into
This height, and energy efficiency is very low, only 10%.And the direct photothermal deformation of solar energy, by the reasonable selection to material, it is managed
More than 90% is can reach by efficiency.
And the optical-thermal conversion material studied at present, including noble metal nano particles, organic polymer, transition metal nitrogen
Transition metal oxide and carbon material after compound, transition metal boride, doping etc..Compared with other optothermal materials, carbon materials
Material has the characteristics that material source is extensive, wide to sunshine spectral absorption scope.
Carbon material at this stage is used for the application of photothermal conversion, focuses primarily upon graphene, CNT and carbon particle
Deng the preparation method of these materials equally has the shortcomings that preparation flow is complicated, with high costs.
The content of the invention：
It is an object of the invention to provide a kind of paper substrate composite light absorption material for realizing efficient photothermal conversion and preparation method thereof,
Carbon black pellet in commercialization burnt black ink is deposited on its surface by ultrasound load, preparation method is simple, cost price is low
It is honest and clean, obtain the composite light absorption material that a kind of spectral response range is wide, photo-thermal conversion efficiency is high, hydrophily is strong, be easy to extensive
Production and extensive use, enrich the field of existing optothermal material, have filled up the blank of the technical field；Meanwhile utilization is this
Simple efficient steam generation and sea water desalinating unit is made in paper-based composite material, can meet that society quickly obtains from desalinization
The requirement of pure water is obtained, also provides a kind of new paragon for solar energy heat utilization.
The present invention is achieved by the following technical programs：
A kind of paper substrate composite light absorption material for realizing efficient photothermal conversion, for the material using filter paper as carrier, additive is carbon
Carbon black granules in plain ink, the preparation method of the material comprise the following steps：
1) filter paper is put into burnt black ink, then carries out the filter paper that ultrasonic deposition obtains deposited carbon black granules；
2) what step 1) obtained deposited 60-70 DEG C of-30min of vacuum drying 20 of filter paper of carbon black granules so that carbon black
Grain is more securely attached on filter paper, the material after being dried；
3) material after the drying that step 2) obtains, puts into and ultrasonic removing is carried out in deionized water, removes excessive carbon black
Particle, 60-70 DEG C of vacuum dryings, obtain target paper substrate composite light absorption material again.
Filter paper aperture is 1-120 μm in step 1), and ultrasonic power is 70%-the 100% ,-5min of ultrasonic deposition 3, repeats three
It is secondary.
Ultrasonic power is 70%-100% in step 3), 3-5min of ultrasound removing.
The present invention also protects the application of the paper substrate composite light absorption material for realizing efficient photothermal conversion, for solar energy
Vapours converts, for sewage purification, desalinization.
The application of the paper substrate composite light absorption material for realizing efficient photothermal conversion, converted for solar energy vapours,
Comprise the following steps：The paper substrate composite light absorption material for realizing efficient photothermal conversion, it is positioned over and is turned based on surface local photo-thermal
Solar energy vapours conversion is carried out in the steam raising plant changed, should the steam raising plant based on surface local photothermal deformation
From bottom to top include water container with cover and the foam heat insulating panel being fixed on above the lid of water container, the foam heat-insulating
The top of plate is provided with groove, and bottom portion of groove is provided with substrate water delivery materials layer, light-absorbing material layer is provided with above substrate water delivery materials layer,
Additionally including water transport channel, the water transport channel lower end is immersed in below water container liquid level with cover, and in water transport channel
End sequentially passes through the lid and foam heat insulating panel of water container from bottom to top, and the substrate for connecting the top groove of foam heat insulating panel is defeated
Water material layer, moisture is provided for the light-absorbing material layer above substrate water delivery materials layer；Depth of groove at the top of foam heat insulating panel is
5-15mm；Distilled water or seawater or sewage are filled in water container with cover；The light absorbent of the light-absorbing material layer is this hair
Bright paper substrate composite light absorption material.
Beneficial effects of the present invention are as follows：
1) cost of the present invention is low, simple to operate, green, can generate on a large scale.
2) present invention utilizes the carbon black granules absorbability fabulous to sunshine, and sunshine is effectively converted into heat, by
Adhere in the deposition of ink carbon black granules so that it reaches in the range of 250~2500nm to the absorptivity of solar energy
More than 94.5%；Pore space structure possessed by paper base material is utilized simultaneously, effectively increases composite to the more of sunshine
Rescattering, to reach purpose of the increase to light absorbs.
2) present invention using filter paper fibre surface the functional group such as hydroxyl, can effectively by water from filter paper bottom transport to
Composite material surface is to be evaporated.In the application of solar energy vapours, there is efficient photothermal conversion effect, in 1kW m-2
Intensity of illumination under, filter paper aperture is the paper-based composite material of ink at a slow speed its photo-thermal steam efficiency in 1-3 μm up to 85.9%
The material is easy to large-scale production and extensive use, enriches the field of existing optothermal material, has filled up the sky of the technical field
In vain.Meanwhile using the efficient photothermal conversion characteristic of paper substrate composite light absorption material of the present invention, available for desalinization application, meet
The social quick requirement for obtaining pure water, also provides a kind of new paragon for solar energy heat utilization.
In a word, carbon black pellet in commercialization burnt black ink is deposited on its surface by the present invention by ultrasound load, is prepared
Method is simple, cost price is cheap, green, obtains that a kind of spectral response range is wide, photo-thermal conversion efficiency is high, hydrophily
Strong composite light absorption material, it is easy to large-scale production and extensive use, enriches the field of existing optothermal material, filled up the skill
The blank in art field；Meanwhile using the efficient photothermal conversion characteristic of paper substrate composite light absorption material of the present invention, available for desalinization
Using satisfaction society quickly obtains the requirement of pure water, also provides a kind of new paragon for solar energy heat utilization.
Brief description of the drawings：
Fig. 1 is the microstructure scanning electron microscopy for the quick ink paper-based composite material that embodiment 1 obtains；
Fig. 2 is the contact angle for the quick ink paper-based composite material that embodiment 1 obtains；
Fig. 3 is the ultraviolet/visible/near infrared abosrption spectrogram for the quick ink paper-based composite material that embodiment 1 obtains；
Fig. 4 is the microstructure scanning electron microscopy for the middling speed ink paper-based composite material that embodiment 2 obtains；
Fig. 5 is the contact angle for the middling speed ink paper-based composite material that embodiment 2 obtains；
Fig. 6 is the ultraviolet/visible/near infrared abosrption spectrogram for the middling speed ink paper-based composite material that embodiment 2 obtains；
Fig. 7 is the microstructure scanning electron microscopy for the paper-based composite material of ink at a slow speed that embodiment 3 obtains；
Fig. 8 is the contact angle for the paper-based composite material of ink at a slow speed that embodiment 3 obtains；
Fig. 9 is the ultraviolet/visible/near infrared abosrption spectrogram for the paper-based composite material of ink at a slow speed that embodiment 3 obtains；
Figure 10 is the structural representation of the steam raising plant based on surface local photothermal deformation of embodiments of the invention 5
Figure；
Wherein, 1, light-absorbing material layer, 2, foam heat insulating panel, 3, water container, 4, water transport channel, 5, substrate water delivery materials
Layer.
Embodiment：
It is to further explanation of the invention, rather than limitation of the present invention below.
Embodiment 1：The synthesis of ink paper substrate composite light absorption material based on fast grade filter paper
1) by 25 × 25 × 0.2mm3For fast qualitative filter paper in 80-120 μm to be placed on 20ml black in filter paper aperture
Inside color burnt black ink solution, it is then placed within supersonic cleaning machine, in the case where power is 70% ultrasonication, ultrasonic deposition
5min, in triplicate, carbon black granules in ink are deposited on filter paper fibre surface；
2) filter paper for being loaded with carbon black granules for obtaining step 1) is dried in vacuo at 60 DEG C so that ink carbon black
Grain can be securely attached to filter paper fibre surface, the material after being dried；
3) material is put into beaker after the drying for obtaining step 2), adds 20ml deionized waters, is 70% to surpass in power
Under sound effect, ultrasonic 5min, until deionized water color is not any change, by excess, be attached to filter paper fibre surface
Particles of ink is heavy to be removed；
4) filter paper of carbon black granules of being loaded with for obtaining step 3) is dried in vacuo at 60 DEG C to obtain target paper substrate and answered
Close light absorbent.
The paper substrate composite light absorption material of preparation, is to have fiber stack to form, it can be seen that particles of ink is attached to fiber table
Face (as shown in Figure 1).Composite is 94.9% (as shown in Figure 3) to absorptivity in the range of 250~2500nm, meanwhile, sample
Product have preferable hydrophily (as shown in Figure 2).
Embodiment 2：The synthesis of ink paper substrate composite light absorption material based on Medium speed filter paper
1) by 25 × 25 × 0.2mm3Filter paper aperture be that 20-60 μm of middling speed qualitative filter paper is placed on 20ml black carbons
Inside ink solution, it is then placed within supersonic cleaning machine, in the case where power is 100% ultrasonication, ultrasonic deposition 3min, repeats
Three times, carbon black granules in ink are deposited on filter paper fibre surface；
2) filter paper for being loaded with carbon black granules for obtaining step 1) is dried in vacuo at 70 DEG C so that ink carbon black
Grain can be securely attached to filter paper fibre surface, the material after being dried；
3) material is put into beaker after the drying for obtaining step 2), adds 20ml deionized waters, is 100% to surpass in power
Under sound effect, until deionized water color is not any change, particles of ink excess, being attached to filter paper fibre surface is sunk
Removed；
4) filter paper of carbon black granules of being loaded with for obtaining step 3) is dried in vacuo at 70 DEG C to obtain target paper substrate and answered
Close light absorbent.
The paper substrate composite light absorption material of preparation, is to have fiber stack to form, it can be seen that particles of ink is attached to fiber table
Face (as shown in Figure 4).Composite is 94.5% (as shown in Figure 6) to absorptivity in the range of 250~2500nm, meanwhile, sample
Product have preferable hydrophily (as shown in Figure 5).
Embodiment 3：The synthesis of ink paper substrate composite light absorption material based on slow filter paper
1) by 25 × 25 × 0.2mm3Filter paper aperture be placed on 40ml black carbons for the qualitative filter paper at a slow speed in 1-3 μm
Inside ink solution, it is then placed within supersonic cleaning machine, in the case where power is 70% ultrasonication, ultrasonic deposition 5min, repeats
Three times, carbon black granules in ink are deposited on filter paper fibre surface；
2) filter paper for being loaded with carbon black granules for obtaining step 1) is dried in vacuo at 60 DEG C so that ink carbon black
Grain can be securely attached to filter paper fibre surface, the material after being dried；
3) material is put into beaker after the drying for obtaining step 2), adds 40ml deionized waters, is 70% to surpass in power
Under sound effect, until deionized water color is not any change, particles of ink excess, being attached to filter paper fibre surface is sunk
Removed；
4) filter paper of carbon black granules of being loaded with for obtaining step 3) is dried in vacuo at 60 DEG C to obtain target paper substrate and answered
Close light absorbent.
The paper substrate composite light absorption material of preparation, is to have fiber stack to form, it can be seen that particles of ink is attached to fiber table
Face (as shown in Figure 7).Composite is 94.5% (as shown in Figure 9) to absorptivity in the range of 250~2500nm, meanwhile, sample
Product have preferable hydrophily (as shown in Figure 8).
Embodiment 4：Steam produces experiment：
Paper substrate composite light absorption material of the present invention is carried out under the conditions of following experiments, can be with after illumination certain time
Produce certain steam.The paper substrate composite light absorption material that embodiment 1-3 is obtained, it is positioned over based on surface local photothermal deformation
Solar energy vapours conversion is carried out in steam raising plant, used evaporation liquid can be 3.5wt% -10wt% sodium chloride
The aqueous solution or deionized water.It is 1-3kW m in intensity-2Analog light source irradiation under, illumination certain time.Meanwhile use electronics
Balance records loss of liquid amount and the relation of time in real time.
As shown in Figure 10, being somebody's turn to do the steam raising plant based on surface local photothermal deformation from bottom to top includes with cover be filled with water
Container 3 and the foam heat insulating panel 2 being fixed on above the lid of water container 3, the top of the foam heat insulating panel 2 are provided with groove,
Bottom portion of groove is provided with substrate water delivery materials layer 5, and the top of substrate water delivery materials layer 5 is provided with light-absorbing material layer 1, additionally including water delivery
Passage 4, the lower end of water transport channel 4 is immersed in below the liquid level of water container 3 with cover, and the upper end of water transport channel 4 is from bottom to top
The lid and foam heat insulating panel 2 of water container 3 are sequentially passed through, connects the substrate water delivery materials of the top groove of foam heat insulating panel 2
Layer 5, it is that the light-absorbing material layer 1 of the top of substrate water delivery materials layer 5 provides moisture.Water container 3 is equipped with deionized water to be evaporated
Or seawater；The bottle cap central punch of the center of heat barrier foam plate 2 and water container 3 forms duct, and incident light shines directly into extinction
The surface of material layer 5.Depth of groove at the top of institute's foam heat insulating panel is 5-15mm；The light absorbent of the light-absorbing material layer is this
The paper substrate composite light absorption material of invention.The material of described foam heat insulating panel 2 is 6 × 6 × 4cm3Polyethylene foam cotton, its top
Groove is 2.5 × 2.5 × 1cm3.Described water transport channel 4 is bar shaped dust-free paper band, is passed through from the center of foam heat insulating panel 2
The water surface lower end of water container 3.Water is evenly distributed in groove by substrate water delivery materials layer 5.
Specific experiment condition is as follows：
Experiment condition 1：Solar simulator light intensity is 1kW m-2, liquid to be evaporated is 40ml deionized waters, light application time
For 30min.Select the light absorbent of paper substrate composite light absorption material that embodiment 1 obtains as light-absorbing material layer.
Experiment condition 2：Solar simulator light intensity is 1kW m-2, liquid to be evaporated is 40ml deionized waters, light application time
For 30min.Select the light absorbent of paper substrate composite light absorption material that embodiment 2 obtains as light-absorbing material layer.
Experiment condition 3：Solar simulator light intensity is 3kW m-2, liquid to be evaporated is 40ml deionized waters, light application time
For 30min.Select the light absorbent of paper substrate composite light absorption material that embodiment 3 obtains as light-absorbing material layer.
Experiment condition 4：Solar simulator light intensity is 1kW m-2, liquid to be evaporated is that 40ml 3.5wt% sodium chloride is molten
Liquid, light application time 30min.Select the light absorbent of paper substrate composite light absorption material that embodiment 1 obtains as light-absorbing material layer.
Experiment condition 5：Solar simulator light intensity is 1kW m-2, liquid to be evaporated is 40ml 10wt% sodium chloride solutions,
Light application time is 30min.Select the light absorbent of paper substrate composite light absorption material that embodiment 1 obtains as light-absorbing material layer.
Steam produces and desalinization experimental data, is shown in Table 1.
Table 1.
| Experiment condition | Evaporation rate (kg m-2h-1) | Steam generation efficiency (%) |
| 1 | 1.25 | 85.9% |
| 2 | 1.25 | 85.9% |
| 3 | 3.70 | 86.2% |
| 4 | 1.25 | 88.0% |
| 5 | 1.27 | 87.4% |
The paper substrate composite light absorption material that embodiment 3 obtains is in 1kW m-2Intensity of illumination under photo-thermal steam efficiency be up to
85.9%.Meanwhile in concentration is 3.5wt%NaCl solution, in 1kW m-2Intensity of illumination under, photo-thermal steam efficiency is
88.0%.
Claims (9)
1. a kind of paper substrate composite light absorption material for realizing efficient photothermal conversion, it is characterised in that the material adds using filter paper as carrier
It is the carbon black granules in burnt black ink to add thing, and the preparation method of the material comprises the following steps：
1) filter paper is put into burnt black ink, then carries out the filter paper that ultrasonic deposition obtains deposited carbon black granules；
2) 60-70 DEG C of vacuum dryings of filter paper of what step 1) obtained deposited carbon black granules dried after material；
3) material after the drying that step 2) obtains, puts into and ultrasonic removing is carried out in deionized water, removes excessive carbon black granules,
60-70 DEG C of vacuum dryings again, obtain target paper substrate composite light absorption material.
2. the paper substrate composite light absorption material according to claim 1 for realizing efficient photothermal conversion, it is characterised in that step 1)
Middle filter paper aperture is 1-120 μm, and ultrasonic power is 70%-100% ,-the 5min of ultrasonic deposition 3.
3. the paper substrate composite light absorption material according to claim 1 or 2 for realizing efficient photothermal conversion, it is characterised in that step
It is rapid 3) in ultrasonic power be 70%-100%, ultrasound removing 3-5min.
4. a kind of preparation method of the paper substrate composite light absorption material for realizing efficient photothermal conversion described in claim 1, its feature
It is, comprises the following steps：
1) filter paper is put into burnt black ink, then carries out the filter paper that ultrasonic deposition obtains deposited carbon black granules；
2) 60-70 DEG C of vacuum dryings of filter paper of what step 1) obtained deposited carbon black granules dried after material；
3) material after the drying that step 2) obtains, puts into and ultrasonic removing is carried out in deionized water, removes excessive carbon black granules,
60-70 DEG C of vacuum are dried again, obtain target paper substrate composite light absorption material.
5. the preparation method of the paper substrate composite light absorption material according to claim 4 for realizing efficient photothermal conversion, its feature
It is, filter paper aperture is 1-120 μm in step 1), and ultrasonic power is 70%-100% ,-the 5min of ultrasonic deposition 3.
6. the preparation method of the paper substrate composite light absorption material according to claim 4 for realizing efficient photothermal conversion, its feature
It is, ultrasonic power is 70%-100% in step 3), 3-5min of ultrasound removing.
7. the paper substrate composite light absorption material for realizing efficient photothermal conversion in claim 1-3 described in any claim should
With, it is characterised in that converted for solar energy vapours.
8. the application of the paper substrate composite light absorption material according to claim 7 for realizing efficient photothermal conversion, it is characterised in that
For sewage purification, desalinization.
9. the application of the paper substrate composite light absorption material according to claim 7 for realizing efficient photothermal conversion, it is characterised in that
The application of the paper substrate composite light absorption material for realizing efficient photothermal conversion, converted for solar energy vapours, including it is following
Step：The paper substrate composite light absorption material for realizing efficient photothermal conversion, is positioned over the steam based on surface local photothermal deformation
Solar energy vapours conversion is carried out in generating means, is somebody's turn to do the steam raising plant based on surface local photothermal deformation from bottom to top
Including water container with cover and the foam heat insulating panel being fixed on above the lid of water container, the top of the foam heat insulating panel
Provided with groove, bottom portion of groove is provided with substrate water delivery materials layer, is provided with light-absorbing material layer above substrate water delivery materials layer, additionally wraps
Include water transport channel, the water transport channel lower end is immersed in below water container liquid level with cover, and water transport channel upper end from lower and
On sequentially pass through the lid and foam heat insulating panel of water container, connect the substrate water delivery materials of the top groove of foam heat insulating panel
Layer, moisture is provided for the light-absorbing material layer above substrate water delivery materials layer；Depth of groove at the top of foam heat insulating panel is 5-15mm；
Distilled water or seawater or sewage are filled in water container with cover；The light absorbent of the light-absorbing material layer is paper substrate composite light absorption
Material.
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| CN201810873182.1A CN109024085B (en) | 2017-08-11 | 2018-08-02 | Paper-based composite light absorption material for realizing efficient photo-thermal conversion and preparation method thereof |
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| CN109024085A (en) | 2018-12-18 |
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