CN109024085A - A kind of paper base composite light absorption material and preparation method thereof for realizing efficient photothermal conversion - Google Patents
A kind of paper base composite light absorption material and preparation method thereof for realizing efficient photothermal conversion Download PDFInfo
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- CN109024085A CN109024085A CN201810873182.1A CN201810873182A CN109024085A CN 109024085 A CN109024085 A CN 109024085A CN 201810873182 A CN201810873182 A CN 201810873182A CN 109024085 A CN109024085 A CN 109024085A
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- light absorption
- photothermal conversion
- base composite
- composite light
- paper base
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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
Abstract
The invention discloses a kind of paper base composite light absorption materials and preparation method thereof for realizing efficient photothermal conversion, carbon black granules in commercialization carbon black ink are deposited on surface by ultrasound load, preparation method is simple, cost price is cheap, environmentally protective, obtain the composite light absorption material that a kind of spectral response range is wide, photothermal conversion efficiency is high, hydrophily is strong, it is easy to be mass produced and be widely applied, the blank of the technical field has been filled up in the field for enriching existing optothermal material；Meanwhile meanwhile, it using the efficient photothermal conversion characteristic of paper base composite light absorption material of the present invention, can be used for sea water desalination application, meet the requirement that society is quickly obtained pure water, also provide a kind of new paragon for solar energy heat utilization.
Description
Technical field:
The present invention relates to photothermal conversion materiat technical fields, and in particular to a kind of paper base for realizing efficient photothermal conversion is compound
Light absorbent and preparation method thereof.
Background technique:
Currently, facing energy shortage and problem of environmental pollution, need to find a kind of environmentally friendly, safety clean energy resource.And too
Positive energy has many advantages, such as research hotspot that is applied widely, inexhaustible, nexhaustible, and becoming 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 mode, working substance steam generally is converted by the solar radiation of absorption by solar thermal collector, then
Steam is done work by pushing turbine, is generated electricity.But since its occupied area is wide, needs lens light gathering, investment at
This height, and energy efficiency is very low, only 10%.And the direct photothermal conversion of solar energy, pass through the reasonable selection to material, reason
It can reach 90% or more 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 sunlight spectral absorption range.
Carbon material at this stage is used for the application of photothermal conversion, focuses primarily upon graphene, carbon nanotube and carbon particle
Equally have the shortcomings that preparation flow is complicated, with high costs Deng, the preparation method of these materials.
Summary of the invention:
The object of the present invention is to provide a kind of paper base composite light absorption material and preparation method thereof for realizing efficient photothermal conversion,
Carbon black granules in commercialization carbon black ink are deposited on 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, photothermal 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
The steam generation being simple and efficient and desalination plant is made in paper-based composite material, can meet society and quickly obtain from sea water desalination
The requirement for obtaining pure water, 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 base 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 the following steps are included:
1) filter paper is put into carbon black ink, then carries out the filter paper that ultrasonic deposition obtains deposited carbon black granules；
2) 60-70 DEG C of 20-30min of vacuum drying of filter paper that step 1) obtained deposited carbon black granules, so that carbon black
Grain is attached on filter paper strongerly, the material after being dried；
3) material after the drying that step 2) obtains is put into and carries out ultrasonic removing in deionized water, removes excessive carbon black
Particle, 60-70 DEG C of vacuum dryings, obtain target paper base composite light absorption material again.
Filter paper aperture is 1-120 μm in step 1), and ultrasonic power is 70%-100%, 3-5min of ultrasonic deposition, 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 base composite light absorption material for realizing efficient photothermal conversion, is used for solar energy
Hot steam conversion, is used for sewage purification, sea water desalination.
The application of the paper base composite light absorption material for realizing efficient photothermal conversion, converts for solar energy hot steam,
The following steps are included: the paper base composite light absorption material for realizing efficient photothermal conversion, is placed in and is turned based on surface local photo-thermal
The conversion of solar energy hot steam is carried out in the steam generation facility changed, it should the steam generation facility based on surface local photothermal conversion
The foam heat insulating panel for including from bottom to top water container with cover and being fixed on above the lid of water container, the foam heat-insulating
The top of plate is equipped with groove, and bottom portion of groove is equipped with substrate water delivery materials layer, is equipped with light-absorbing material layer above substrate water delivery materials layer,
It include additionally water transport channel, the water transport channel lower end is immersed in water container liquid level with cover hereinafter, 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 being connected to the top groove of foam heat insulating panel is defeated
Water material layer provides moisture 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 base composite light absorption material.
Beneficial effects of the present invention are as follows:
1) present invention is at low cost, easy to operate, environmentally protective, can generate on a large scale.
2) present invention absorbability fabulous to sunlight using carbon black granules, is effectively converted into heat for sunlight, by
Adhere in the deposition of ink carbon black granules, so that it reaches the absorptivity of solar energy within the scope of 250~2500nm
94.5% or more；Simultaneously using hole configurations possessed by paper base material, composite material is effectively increased to the more of sunlight
Rescattering, to achieve the purpose that increase to light absorption.
2) present invention using filter paper fibre surface the functional groups 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 hot steam, there is efficient photothermal conversion effect, in 1kW m-2
Intensity of illumination under, filter paper aperture is its photo-thermal steam efficiency of the paper-based composite material of ink at a slow speed in 1-3 μm up to 85.9%,
The material is easy to be mass produced and be widely applied, and enriches the field of existing optothermal material, has filled up the sky of the technical field
It is white.It meanwhile using the efficient photothermal conversion characteristic of paper base composite light absorption material of the present invention, can be used for sea water desalination application, meet
Society is quickly obtained the requirement of pure water, also provides a kind of new paragon for solar energy heat utilization.
In short, the present invention will be commercialized carbon black ink in carbon black granules by ultrasound load be deposited on surface, prepare
Method is simple, cost price is cheap, environmentally protective, obtains that a kind of spectral response range is wide, photothermal conversion efficiency is high, hydrophily
Strong composite light absorption material is easy to be mass produced and be widely applied, 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 base composite light absorption material of the present invention, it can be used for sea water desalination
Using satisfaction society is quickly obtained the requirement of pure water, also provides a kind of new paragon for solar energy heat utilization.
Detailed description of the invention:
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 generation facility based on surface local photothermal conversion of the embodiment of the present 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.
Specific embodiment:
It is to further explanation of the invention, rather than limiting the invention below.
Embodiment 1: the synthesis of the ink paper base composite light absorption material based on fast grade filter paper
1) by 25 × 25 × 0.2mm3To be that fast qualitative filter paper in 80-120 μm is placed on 20ml black in filter paper aperture
Inside color carbon black ink solution, it is then placed in supersonic cleaning machine, in the case where power is 70% ultrasonication, ultrasonic deposition
Carbon black granules in ink are deposited on filter paper fibre surface in triplicate by 5min；
2) filter paper of carbon black granules is dried in vacuo at 60 DEG C the load that step 1) obtains, so that ink carbon black
Grain can be securely attached to filter paper fibre surface, the material after being dried；
3) material after the drying of step 2) acquisition is put into beaker, 20ml deionized water is added, be 70% to surpass in power
Under sound effect, ultrasonic 5min, until deionized water color is not any change, by it is excessive, be attached to filter paper fibre surface
Particles of ink is heavy to be removed；
4) filter paper of carbon black granules is dried in vacuo at 60 DEG C to obtain target paper base and answers the load that step 3) obtains
Close light absorbent.
The paper base 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 material is 94.9% (as shown in Figure 3) to absorptivity within the scope of 250~2500nm, meanwhile, sample
Product have preferable hydrophily (as shown in Figure 2).
Embodiment 2: the synthesis of the ink paper base 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 carbon
It inside ink solution, is then placed in supersonic cleaning machine, in the case where power is 100% ultrasonication, ultrasonic deposition 3min is repeated
Three times, carbon black granules in ink are deposited on filter paper fibre surface；
2) filter paper of carbon black granules is dried in vacuo at 70 DEG C the load that step 1) obtains, so that ink carbon black
Grain can be securely attached to filter paper fibre surface, the material after being dried；
3) material after the drying of step 2) acquisition is put into beaker, 20ml deionized water is added, be 100% to surpass in power
Under sound effect, until deionized water color is not any change, particles of ink that is excessive, being attached to filter paper fibre surface is sunk
It is removed；
4) filter paper of carbon black granules is dried in vacuo at 70 DEG C to obtain target paper base and answers the load that step 3) obtains
Close light absorbent.
The paper base 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 material is 94.5% (as shown in Figure 6) to absorptivity within the scope of 250~2500nm, meanwhile, sample
Product have preferable hydrophily (as shown in Figure 5).
Embodiment 3: the synthesis of the ink paper base composite light absorption material based on slow filter paper
1) by 25 × 25 × 0.2mm3Filter paper aperture be 1-3 μm in qualitative filter paper at a slow speed be placed on 40ml black carbon
It inside ink solution, is then placed in supersonic cleaning machine, in the case where power is 70% ultrasonication, ultrasonic deposition 5min is repeated
Three times, carbon black granules in ink are deposited on filter paper fibre surface；
2) filter paper of carbon black granules is dried in vacuo at 60 DEG C the load that step 1) obtains, so that ink carbon black
Grain can be securely attached to filter paper fibre surface, the material after being dried；
3) material after the drying of step 2) acquisition is put into beaker, 40ml deionized water is added, be 70% to surpass in power
Under sound effect, until deionized water color is not any change, particles of ink that is excessive, being attached to filter paper fibre surface is sunk
It is removed；
4) filter paper of carbon black granules is dried in vacuo at 60 DEG C to obtain target paper base and answers the load that step 3) obtains
Close light absorbent.
The paper base 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 material is 94.5% (as shown in Figure 9) to absorptivity within the scope of 250~2500nm, meanwhile, sample
Product have preferable hydrophily (as shown in Figure 8).
Embodiment 4: steam generation experiment:
Paper base composite light absorption material of the present invention carries out under the conditions of following experiments, after a certain period of time through illumination, can be with
Generate certain steam.The paper base composite light absorption material that embodiment 1-3 is obtained is placed in based on surface local photothermal conversion
The conversion of solar energy hot steam is carried out in steam generation facility, used evaporation liquid can be 3.5wt% -10wt% sodium chloride
Aqueous solution or deionized water.It is 1-3kW m in intensity-2Analog light source irradiation under, illumination certain time.Meanwhile using electronics
Balance records the relationship of loss of liquid amount and time in real time.
As shown in Figure 10, being somebody's turn to do the steam generation facility based on surface local photothermal conversion from bottom to top includes with cover be filled with water
The top of container 3 and the foam heat insulating panel 2 being fixed on above the lid of water container 3, the foam heat insulating panel 2 is equipped with groove,
Bottom portion of groove is equipped with substrate water delivery materials layer 5, is equipped with light-absorbing material layer 1 above substrate water delivery materials layer 5, additionally includes water delivery
Channel 4,4 lower end of water transport channel be immersed in 3 liquid level of water container with cover hereinafter, and 4 upper end of water transport channel from bottom to top
The lid and foam heat insulating panel 2 of water container 3 are sequentially passed through, the substrate water delivery materials of the top groove of foam heat insulating panel 2 are connected to
Layer 5, the light-absorbing material layer 1 for 5 top of substrate water delivery materials layer provide moisture.Water container 3 is equipped with deionized water to be evaporated
Or seawater；The bottle cap central punch of 2 center of heat barrier foam plate and water container 3 constitutes 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 base composite light absorption material of invention.The material of the foam heat insulating panel 2 is 6 × 6 × 4cm3Polyethylene foam cotton, top
Groove is 2.5 × 2.5 × 1cm3.The water transport channel 4 is bar shaped dust-free paper band, is passed through from 2 center of foam heat insulating panel
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 water, light application time
For 30min.Select the light absorbent of paper base 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 water, light application time
For 30min.Select the light absorbent of paper base 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 water, light application time
For 30min.Select the light absorbent of paper base 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 base 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 solution,
Light application time is 30min.Select the light absorbent of paper base composite light absorption material that embodiment 1 obtains as light-absorbing material layer.
Steam generation and sea water desalination experimental data, are shown in Table 1.
Table 1.
| Experiment condition | Evaporation rate (kgm-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 base 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 concentration be 3.5wt%NaCl solution in, in 1kW m-2Intensity of illumination under, photo-thermal steam efficiency is
88.0%.
Claims (9)
1. a kind of paper base composite light absorption material for realizing efficient photothermal conversion, which is characterized in that the material adds using filter paper as carrier
Add object to be the carbon black granules in carbon black ink, the preparation method of the material the following steps are included:
1) filter paper is put into carbon 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 that step 1) obtained deposited carbon black granules dried after material；
3) material after the drying that step 2) obtains is put into and carries out ultrasonic removing in deionized water, removes excessive carbon black granules,
60-70 DEG C of vacuum dryings again obtain target paper base composite light absorption material.
2. the paper base composite light absorption material according to claim 1 for realizing efficient photothermal conversion, which is characterized in that step 1)
Middle filter paper aperture is 1-120 μm, and ultrasonic power is 70%-100%, 3-5min of ultrasonic deposition.
3. the paper base composite light absorption material according to claim 1 or 2 for realizing efficient photothermal conversion, which is characterized 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 base composite light absorption material described in claim 1 for realizing efficient photothermal conversion, feature
It is, comprising the following steps:
1) filter paper is put into carbon 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 that step 1) obtained deposited carbon black granules dried after material；
3) material after the drying that step 2) obtains is put into and carries out ultrasonic removing in deionized water, removes excessive carbon black granules,
60-70 DEG C of vacuum are dried again, obtain target paper base composite light absorption material.
5. the preparation method of the paper base composite light absorption material according to claim 4 for realizing efficient photothermal conversion, feature
It is, filter paper aperture is 1-120 μm in step 1), and ultrasonic power is 70%-100%, 3-5min of ultrasonic deposition.
6. the preparation method of the paper base composite light absorption material according to claim 4 for realizing efficient photothermal conversion, feature
It is, ultrasonic power is 70%-100% in step 3), 3-5min of ultrasound removing.
7. the paper base composite light absorption material of the efficient photothermal conversion of realization described in any claim answers in claim 1-3
With, which is characterized in that it is converted for solar energy hot steam.
8. the application of the paper base composite light absorption material according to claim 7 for realizing efficient photothermal conversion, which is characterized in that
For sewage purification, sea water desalination.
9. the application of the paper base composite light absorption material according to claim 7 for realizing efficient photothermal conversion, which is characterized in that
The application of the paper base composite light absorption material for realizing efficient photothermal conversion, converts, including following for solar energy hot steam
Step: the paper base composite light absorption material for realizing efficient photothermal conversion is placed in the steam based on surface local photothermal conversion
The conversion of solar energy hot steam is carried out in generating device, is somebody's turn to do the steam generation facility based on surface local photothermal conversion 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
Equipped with groove, bottom portion of groove is equipped with substrate water delivery materials layer, is equipped with light-absorbing material layer above substrate water delivery materials layer, additionally wraps
Include water transport channel, the water transport channel lower end be immersed in water container liquid level with cover hereinafter, and water transport channel upper end from lower and
On sequentially pass through the lid and foam heat insulating panel of water container, be connected to the substrate water delivery materials of the top groove of foam heat insulating panel
Layer, provides moisture 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 base composite light absorption
Material.
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| CN2017106841216 | 2017-08-11 | ||
| CN201710684121.6A CN107604756A (en) | 2017-08-11 | 2017-08-11 | A kind of paper substrate composite light absorption material for realizing efficient photothermal conversion and preparation method thereof |
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| 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 |
| CN113896834A (en) * | 2021-11-03 | 2022-01-07 | 桂林电子科技大学 | Preparation method and application of composite hydrogel photothermal conversion material |
| CN114395937A (en) * | 2022-01-18 | 2022-04-26 | 齐鲁工业大学 | Efficient solar photo-thermal evaporation paper and preparation method thereof |
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| CN108275737B (en) * | 2018-01-25 | 2020-10-30 | 浙江大学 | Method for desalting seawater based on gas-liquid interface heating |
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| CN109850973B (en) * | 2019-04-04 | 2021-11-16 | 南京大学 | Seawater desalination and sewage treatment device and preparation method thereof |
| CN114684881A (en) * | 2022-03-18 | 2022-07-01 | 浙江大学 | Method for utilizing activated persulfate to reduce VOCs entering photo-thermal distillation condensation to desalinate water |
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