CN115262135B - Janus cotton cloth for sea water desalination and preparation method thereof - Google Patents
Janus cotton cloth for sea water desalination and preparation method thereof Download PDFInfo
- Publication number
- CN115262135B CN115262135B CN202210925529.9A CN202210925529A CN115262135B CN 115262135 B CN115262135 B CN 115262135B CN 202210925529 A CN202210925529 A CN 202210925529A CN 115262135 B CN115262135 B CN 115262135B
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- cotton cloth
- janus
- sea water
- ink
- water desalination
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- 239000004744 fabric Substances 0.000 title claims abstract description 177
- 229920000742 Cotton Polymers 0.000 title claims abstract description 168
- 239000013535 sea water Substances 0.000 title claims abstract description 34
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- RMTXUPIIESNLPW-UHFFFAOYSA-N 1,2-dihydroxy-3-(pentadeca-8,11-dienyl)benzene Natural products CCCC=CCC=CCCCCCCCC1=CC=CC(O)=C1O RMTXUPIIESNLPW-UHFFFAOYSA-N 0.000 claims abstract description 25
- QARRXYBJLBIVAK-UEMSJJPVSA-N 3-[(8e,11e)-pentadeca-8,11-dienyl]benzene-1,2-diol;3-[(8e,11e)-pentadeca-8,11,14-trienyl]benzene-1,2-diol;3-[(8e,11e,13e)-pentadeca-8,11,13-trienyl]benzene-1,2-diol;3-[(e)-pentadec-8-enyl]benzene-1,2-diol;3-pentadecylbenzene-1,2-diol Chemical compound CCCCCCCCCCCCCCCC1=CC=CC(O)=C1O.CCCCCC\C=C\CCCCCCCC1=CC=CC(O)=C1O.CCC\C=C\C\C=C\CCCCCCCC1=CC=CC(O)=C1O.C\C=C\C=C\C\C=C\CCCCCCCC1=CC=CC(O)=C1O.OC1=CC=CC(CCCCCCC\C=C\C\C=C\CC=C)=C1O QARRXYBJLBIVAK-UEMSJJPVSA-N 0.000 claims abstract description 25
- IYROWZYPEIMDDN-UHFFFAOYSA-N 3-n-pentadec-8,11,13-trienyl catechol Natural products CC=CC=CCC=CCCCCCCCC1=CC=CC(O)=C1O IYROWZYPEIMDDN-UHFFFAOYSA-N 0.000 claims abstract description 25
- DQTMTQZSOJMZSF-UHFFFAOYSA-N urushiol Natural products CCCCCCCCCCCCCCCC1=CC=CC(O)=C1O DQTMTQZSOJMZSF-UHFFFAOYSA-N 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 50
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 37
- 238000001035 drying Methods 0.000 claims description 34
- 238000004140 cleaning Methods 0.000 claims description 30
- 238000005507 spraying Methods 0.000 claims description 21
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 16
- 239000007864 aqueous solution Substances 0.000 claims description 13
- 239000008367 deionised water Substances 0.000 claims description 13
- 229910021641 deionized water Inorganic materials 0.000 claims description 13
- 238000002791 soaking Methods 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 24
- 229910052799 carbon Inorganic materials 0.000 abstract description 23
- 230000008020 evaporation Effects 0.000 abstract description 12
- 238000001704 evaporation Methods 0.000 abstract description 12
- 238000004043 dyeing Methods 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000002209 hydrophobic effect Effects 0.000 abstract description 4
- 238000002425 crystallisation Methods 0.000 abstract description 3
- 230000008025 crystallization Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 abstract description 3
- 238000002835 absorbance Methods 0.000 abstract description 2
- 238000001338 self-assembly Methods 0.000 abstract description 2
- 229910052724 xenon Inorganic materials 0.000 description 7
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000005661 hydrophobic surface Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229930014626 natural product Natural products 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011852 carbon nanoparticle Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
- D06B3/20—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric
- D06B3/205—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric by vibrating
- D06B3/208—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric by vibrating the treating material
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/04—Carriers or supports for textile materials to be treated
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses Janus cotton cloth for sea water desalination and a preparation method thereof, and belongs to the technical field of sea water desalination. The preparation method of Janus cotton cloth comprises the following steps: (1) dyeing cotton cloth with ink until the cotton cloth is uniformly black; (2) The urushiol is loaded on cotton cloth after the ink treatment in a self-assembly mode; (3) One surface of the cotton cloth is selected to be sprayed by ink, so that Janus cotton cloth which has super heat absorption performance and is hydrophilic and hydrophobic is prepared. The cotton cloth designed by the invention belongs to porous fabrics, and the holes of the cotton cloth are not influenced by the load of ink and urushiol, so that the water transportation is facilitated. The material has good solar energy conversion rate and evaporation rate, and the hydrophobic urushiol layer of Janus cotton cloth is a lower layer, salt crystallization can be isolated, the surface coated with carbon particles is an upper layer, the absorbance is increased, and the photo-thermal conversion efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of sea water desalination, and particularly relates to Janus cotton cloth for sea water desalination and a preparation method thereof.
Background
Water resource shortage is an increasingly serious problem facing the world today. Sea water desalination is a promising method for filling the problem of water resource shortage in coastal countries. Solar desalination uses abundant solar energy to promote evaporation of seawater, and water vapor is re-condensed to obtain fresh water, which is receiving increasing attention due to sustainability and environmental friendliness. The existing solar seawater desalination materials comprise nano titanium dioxide, nano zeolite, graphene and the like, are limited by special synthesis technology, agglomeration, leaching and environmental and health problems, and cannot realize industrialized popularization and application.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides Janus cotton cloth for sea water desalination and a preparation method thereof. The Janus cotton cloth with double-side wettability difference is prepared by combining ink and urushiol materials, and in the evaporation process, the efficient conversion of solar energy can be realized, and salt crystallization can be isolated.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
step 1: putting cotton cloth purchased in the market into ethanol for ultrasonic cleaning for a plurality of minutes;
step 2: ultrasonically cleaning the cotton cloth cleaned in the step 1 by using NaOH aqueous solution for a plurality of minutes;
step 3: ultrasonically cleaning the cotton cloth cleaned in the step 2 by deionized water for a plurality of minutes;
step 4: placing the cotton cloth cleaned in the step 3 into an oven for drying;
step 5: placing the cotton cloth dried in the step 4 in a culture dish containing ink to dye the cotton cloth to be uniform black;
step 6: putting the cotton cloth obtained in the step 5 into an oven again for drying;
step 7: soaking the cotton cloth dried in the step 6 in urushiol ethanol solution for several hours;
step 8: putting the cotton cloth soaked in the step 7 into an oven for drying;
step 9: selecting one side of the cotton cloth in the step 8 to carry out ink spraying treatment;
step 10: and (3) drying the cotton cloth in the step (9) to obtain the Janus cotton cloth for sea water desalination.
In the step 1, the cotton cloth is circular cotton cloth with the diameter of 3 cm, and the ultrasonic cleaning time of ethanol is 30-40 minutes.
Further, in the step 2, the mass fraction of the NaOH aqueous solution is 3.5-10 wt%, and the ultrasonic cleaning time is 30-40 minutes.
Further, in the step 3, the cotton cloth is ultrasonically cleaned by deionized water for 5-10 times, and the ultrasonic cleaning time of each time is 30-40 minutes.
Further, in the steps 4, 6 and 8, the set temperature of the oven is 50-100 ℃.
Further, the ink in step 5 is a black ink containing carbon particles as a main component, such as carbon ink, koku ink, cao Sugong, etc.
Further, the concentration of urushiol in the step 7 is 0.01 g/ml-0.05 g/ml, and the soaking time is 12 h-48 h.
Further, the mass of the spraying ink in the step 9 is 5 mg-25 mg.
According to the technical scheme, urushiol is loaded on cotton cloth after ink treatment in a self-assembly mode, and then one surface of the cotton cloth is selected to be sprayed by the ink, so that Janus cotton cloth with super heat absorption performance, hydrophilic surface and hydrophobic surface is prepared.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, the Janus cotton cloth is manufactured by taking ink, natural products urushiol and cotton cloth as main materials and utilizing the hydrophilicity of the ink and the hydrophobicity of the urushiol, and has good solar energy absorption performance, can convert solar energy into heat energy in a short time, and has good evaporation effect. Due to the difference of wettability of the two sides of the seawater desalination material, salt crystallization can be isolated from the hydrophobic side of the lower layer in the evaporation process, absorbance can be increased by the carbon nanoparticles on the upper layer, direct sunlight is avoided, and the photodegradation rate of urushiol is reduced.
(2) The cotton cloth designed by the invention belongs to a porous structure, and the pores of the cotton cloth are not influenced by the load of ink and urushiol, so that the transport of water is facilitated; the carbon particles of the ink and the phenol structure of the urushiol provide conditions for absorbing solar energy. The material has good solar energy conversion rate and evaporation rate.
(3) the preparation method of the invention is simple, the preparation period is short, natural products and common carbon ink are adopted, and the raw materials are abundant in sources and environment-friendly.
Drawings
Figure 1 is a Janus cotton cloth hydrophobic surface contact angle.
Figure 2 is a Janus cotton hydrophilic contact angle.
FIG. 3 shows the temperature rise of Janus cotton over a period of time.
Fig. 4 is a graph of the evaporation rate of seawater from a xenon lamp simulating one sun.
Detailed Description
Example 1
Step 1: putting cotton cloth purchased in the market into ethanol for ultrasonic cleaning for 30 minutes;
step 2: ultrasonically cleaning the cotton cloth cleaned in the step 1 for 30 minutes by using NaOH aqueous solution;
step 3: ultrasonically cleaning the cotton cloth cleaned in the step 2 by deionized water for 30 minutes, and cleaning for 10 times;
step 4: placing the cotton cloth cleaned in the step 3 into an oven for drying at 80 ℃;
step 5: placing the cloth dried in the step 4 in a culture dish containing carbon ink, and dyeing the cotton cloth to be uniform black;
step 6: putting the cotton cloth obtained in the step 5 into an oven again to be dried at 80 ℃;
step 7: soaking the carbon cotton cloth dried in the step 6 in 0.01g/ml urushiol ethanol solution for 12-48 h;
step 8: drying the cotton cloth soaked in the step 7;
step 9: carrying out spraying treatment on one side of the cotton cloth in the step 8, wherein the mass of the spraying ink is 15mg;
step 10: and (3) drying the cotton cloth in the step (9) to obtain Janus cotton cloth finally used for sea water desalination.
Example 2
Step 1: putting cotton cloth purchased in the market into ethanol for ultrasonic cleaning for 30 minutes;
step 2: ultrasonically cleaning the cotton cloth cleaned in the step 1 for 30 minutes by using NaOH aqueous solution;
step 3: ultrasonically cleaning the cotton cloth cleaned in the step 2 by deionized water for 30 minutes, and cleaning for 10 times;
step 4: placing the cotton cloth cleaned in the step 3 into an oven for drying at 80 ℃;
step 5: placing the cloth dried in the step 4 in a culture dish containing carbon ink, and dyeing the cotton cloth to be uniform black;
step 6: putting the cotton cloth obtained in the step 5 into an oven again to be dried at 80 ℃;
step 7: soaking the carbon cotton cloth dried in the step 6 in 0.02g/ml urushiol ethanol solution for 12-48 h;
step 8: drying the cotton cloth soaked in the step 7;
step 9: carrying out spraying treatment on one side of the cotton cloth in the step 8, wherein the mass of the spraying ink is 15mg;
step 10: and (3) drying the cotton cloth in the step (9) to obtain Janus cotton cloth finally used for sea water desalination.
Example 3
Step 1: putting cotton cloth purchased in the market into ethanol for ultrasonic cleaning for 30 minutes;
step 2: ultrasonically cleaning the cotton cloth cleaned in the step 1 for 30 minutes by using NaOH aqueous solution;
step 3: ultrasonically cleaning the cotton cloth cleaned in the step 2 by deionized water for 30 minutes, and cleaning for 10 times;
step 4: placing the cotton cloth cleaned in the step 3 into an oven for drying at 80 ℃;
step 5: placing the cloth dried in the step 4 in a culture dish containing carbon ink, and dyeing the cotton cloth to be uniform black;
step 6: putting the cotton cloth obtained in the step 5 into an oven again to be dried at 80 ℃;
step 7: soaking the carbon cotton cloth dried in the step 6 in 0.03g/ml urushiol ethanol solution for 12-48 h;
step 8: drying the cotton cloth soaked in the step 7;
step 9: carrying out spraying treatment on one side of the cotton cloth in the step 8, wherein the mass of the spraying ink is 15mg;
step 10: and (3) drying the cotton cloth in the step (9) to obtain Janus cotton cloth finally used for sea water desalination.
Example 4
Step 1: putting cotton cloth purchased in the market into ethanol for ultrasonic cleaning for 30 minutes;
step 2: ultrasonically cleaning the cotton cloth cleaned in the step 1 for 30 minutes by using NaOH aqueous solution;
step 3: ultrasonically cleaning the cotton cloth cleaned in the step 2 by deionized water for 30 minutes, and cleaning for 10 times;
step 4: placing the cotton cloth cleaned in the step 3 into an oven for drying at 80 ℃;
step 5: placing the cloth dried in the step 4 in a culture dish containing carbon ink, and dyeing the cotton cloth to be uniform black;
step 6: putting the cotton cloth obtained in the step 5 into an oven again to be dried at 80 ℃;
step 7: soaking the carbon cotton cloth dried in the step 6 in 0.04g/ml urushiol ethanol solution for 12-48 h;
step 8: drying the cotton cloth soaked in the step 7;
step 9: carrying out spraying treatment on one side of the cotton cloth in the step 8, wherein the mass of the spraying ink is 15mg;
step 10: and (3) drying the cotton cloth in the step (9) to obtain Janus cotton cloth finally used for sea water desalination.
Example 5
Step 1: putting cotton cloth purchased in the market into ethanol for ultrasonic cleaning for 30 minutes;
step 2: ultrasonically cleaning the cotton cloth cleaned in the step 1 for 30 minutes by using NaOH aqueous solution;
step 3: ultrasonically cleaning the cotton cloth cleaned in the step 2 by deionized water for 30 minutes, and cleaning for 10 times;
step 4: placing the cotton cloth cleaned in the step 3 into an oven for drying at 80 ℃;
step 5: placing the cloth dried in the step 4 in a culture dish containing carbon ink, and dyeing the cotton cloth to be uniform black;
step 6: putting the cotton cloth obtained in the step 5 into an oven again to be dried at 80 ℃;
step 7: soaking the carbon cotton cloth dried in the step 6 in 0.05g/ml urushiol ethanol solution for 12-48 h;
step 8: drying the cotton cloth soaked in the step 7;
step 9: carrying out spraying treatment on one side of the cotton cloth in the step 8, wherein the mass of the spraying ink is 15mg;
step 10: and (3) drying the cotton cloth in the step (9) to obtain Janus cotton cloth finally used for sea water desalination.
Example 6
Step 1: putting cotton cloth purchased in the market into ethanol for ultrasonic cleaning for 30 minutes;
step 2: ultrasonically cleaning the cotton cloth cleaned in the step 1 for 30 minutes by using NaOH aqueous solution;
step 3: ultrasonically cleaning the cotton cloth cleaned in the step 2 by deionized water for 30 minutes, and cleaning for 10 times;
step 4: placing the cotton cloth cleaned in the step 3 into an oven for drying at 80 ℃;
step 5: placing the cloth dried in the step 4 in a culture dish containing carbon ink, and dyeing the cotton cloth to be uniform black;
step 6: putting the cotton cloth obtained in the step 5 into an oven again to be dried at 80 ℃;
step 7: soaking the carbon cotton cloth dried in the step 6 in 0.05g/ml urushiol ethanol solution for 12-48 h;
step 8: drying the cotton cloth soaked in the step 7;
step 9: carrying out spraying treatment on one side of the cotton cloth in the step 8, wherein the mass of the spraying ink is 5mg;
step 10: and (3) drying the cotton cloth in the step (9) to obtain Janus cotton cloth finally used for sea water desalination.
Example 7
Step 1: putting cotton cloth purchased in the market into ethanol for ultrasonic cleaning for 30 minutes;
step 2: ultrasonically cleaning the cotton cloth cleaned in the step 1 for 30 minutes by using NaOH aqueous solution;
step 3: ultrasonically cleaning the cotton cloth cleaned in the step 2 by deionized water for 30 minutes, and cleaning for 10 times;
step 4: placing the cotton cloth cleaned in the step 3 into an oven for drying at 80 ℃;
step 5: placing the cloth dried in the step 4 in a culture dish containing carbon ink, and dyeing the cotton cloth to be uniform black;
step 6: putting the cotton cloth obtained in the step 5 into an oven again to be dried at 80 ℃;
step 7: soaking the carbon cotton cloth dried in the step 6 in 0.05g/ml urushiol ethanol solution for 12-48 h;
step 8: drying the cotton cloth soaked in the step 7;
step 9: carrying out spraying treatment on one side of the cotton cloth in the step 8, wherein the mass of the spraying ink is 10mg;
step 10: and (3) drying the cotton cloth in the step (9) to obtain Janus cotton cloth finally used for sea water desalination.
Example 8
Step 1: putting cotton cloth purchased in the market into ethanol for ultrasonic cleaning for 30 minutes;
step 2: ultrasonically cleaning the cotton cloth cleaned in the step 1 for 30 minutes by using NaOH aqueous solution;
step 3: ultrasonically cleaning the cotton cloth cleaned in the step 2 by deionized water for 30 minutes, and cleaning for 10 times;
step 4: placing the cotton cloth cleaned in the step 3 into an oven for drying at 80 ℃;
step 5: placing the cloth dried in the step 4 in a culture dish containing carbon ink, and dyeing the cotton cloth to be uniform black;
step 6: putting the cotton cloth obtained in the step 5 into an oven again to be dried at 80 ℃;
step 7: soaking the carbon cotton cloth dried in the step 6 in 0.05g/ml urushiol ethanol solution for 12-48 h;
step 8: drying the cotton cloth soaked in the step 7;
step 9: carrying out spraying treatment on one side of the cotton cloth in the step 8, wherein the mass of the spraying ink is 20mg;
step 10: and (3) drying the cotton cloth in the step (9) to obtain Janus cotton cloth finally used for sea water desalination.
Example 9
Step 1: putting cotton cloth purchased in the market into ethanol for ultrasonic cleaning for 30 minutes;
step 2: ultrasonically cleaning the cotton cloth cleaned in the step 1 for 30 minutes by using NaOH aqueous solution;
step 3: ultrasonically cleaning the cotton cloth cleaned in the step 2 by deionized water for 30 minutes, and cleaning for 10 times;
step 4: placing the cotton cloth cleaned in the step 3 into an oven for drying at 80 ℃;
step 5: placing the cloth dried in the step 4 in a culture dish containing carbon ink, and dyeing the cotton cloth to be uniform black;
step 6: putting the cotton cloth obtained in the step 5 into an oven again to be dried at 80 ℃;
step 7: soaking the carbon cotton cloth dried in the step 6 in 0.05g/ml urushiol ethanol solution for 12-48 h;
step 8: drying the cotton cloth soaked in the step 7;
step 9: carrying out spraying treatment on one side of the cotton cloth in the step 8, wherein the mass of the spraying ink is 25mg;
step 10: and (3) drying the cotton cloth in the step (9) to obtain Janus cotton cloth finally used for sea water desalination.
Test of Janus cotton cloth prepared in examples 1 to 5
1. Water contact angle test
The contact angle of one side was measured by a DSA25 contact angle tester (Kurss, germany) and was 110 °, the contact angle was greater than 90 °, which indicated that the side was a hydrophobic side, and the contact angle of the other side was changed from the moment of dripping to 0 ° in a few seconds, which indicated that the side was a hydrophilic side. The two sides of the cotton cloth had different wettability properties through the contact angle test, indicating that Janus cotton cloth was successfully prepared.
2. Solar energy conversion performance test
The solar light source was simulated with a PLS-SXE 300 xenon lamp (Beijing Porphy technology Co., ltd.), and a RX400 infrared thermal imager was used to record real-time temperature changes. The temperature of the cotton cloth in experimental examples 1-5 is 78.3 ℃ at the lowest and 84.5 ℃ at the highest under the condition of simulating sunlight by a xenon lamp, which shows that the Janus cotton cloth has good photo-thermal conversion capability.
3. Evaporative test
The xenon lamp is used as a simulated solar energy light source, proper artificial seawater is added into the polytetrafluoroethylene container, the annular polyethylene foam sponge is used as a heat insulation layer to be placed on the water surface, and the Janus cotton cloth is placed on the heat insulation layer to be used as a solar energy evaporation device, wherein the diameter of the Janus cotton cloth is similar to that of the container. The mass change of the evaporator in the sea water desalination process is recorded by an electronic balance. Recording the Janus cotton cloth evaporation rate prepared in experimental examples 1-5 under the condition that a xenon lamp simulates the sun in one hour, wherein the minimum evaporation rate is 1.42kg m in one hour -2 Up to 1.64kg m -2 Compared with the case of not placing Janus cotton cloth, the sea water is 3.35 times higher under the sun simulated by the xenon lamp (the evaporation rate of the sea water under the sun simulated by the xenon lamp under the condition of not placing Janus cotton cloth is 0.49kg m -2 ）。
In summary, the present invention utilizes the hydrophilicity of the ink and the hydrophobicity of urushiol to manufacture Janus cotton cloth, which has good solar energy absorption performance, can convert solar energy into heat energy in a short time, and has good evaporation effect.
Claims (7)
1. The preparation method of Janus cotton cloth for sea water desalination is characterized by comprising the following steps:
step 1: cleaning cotton cloth, and then placing the cleaned cotton cloth into a baking oven for baking;
step 2: placing the cotton cloth in a culture dish containing ink to dye the cotton cloth to black;
step 3: putting the cotton cloth into an oven again for drying;
step 4: soaking the cotton cloth in a urushiol ethanol solution, wherein the concentration of urushiol in the urushiol ethanol solution is 0.01 g/ml-0.05 g/ml, and the soaking time is 12 h-48 h;
step 5: drying the cotton cloth in an oven;
step 6: carrying out ink spraying treatment on one surface of the dried cotton cloth, wherein the quality of the sprayed ink is controlled to be 5 mg-25 mg;
step 7: and drying the cloth to obtain the Janus cotton cloth for sea water desalination.
2. The method for preparing Janus cotton cloth for sea water desalination according to claim 1, wherein in step 1, the cotton cloth is sequentially ultrasonically cleaned by ethanol, naOH aqueous solution and deionized water.
3. The method for preparing Janus cotton cloth for sea water desalination according to claim 2, wherein the ultrasonic cleaning time of ethanol is 30-40 minutes.
4. The preparation method of Janus cotton cloth for sea water desalination according to claim 2, wherein the mass fraction of the NaOH aqueous solution is 3.5-10 wt%, and the ultrasonic cleaning time is 30-40 minutes.
5. The method for preparing Janus cotton cloth for sea water desalination according to claim 2, wherein the cotton cloth is ultrasonically cleaned with deionized water for 5-10 times, and the ultrasonic cleaning time of each time is 30-40 minutes.
6. The method for preparing Janus cotton cloth for sea water desalination according to claim 1, wherein in the steps 1, 3 and 5, the set temperature of the oven is 50-100 ℃.
7. The Janus cotton cloth for sea water desalination obtained by the preparation method according to any one of claims 1 to 6.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR3051183A1 (en) * | 2016-05-10 | 2017-11-17 | Cyril Marc Michel Grandpierre | SOLAR DISTILLATOR WITH HYDROPHILIC AND HYDROPHOBIC CARPETS |
| CN107987661A (en) * | 2017-12-29 | 2018-05-04 | 西北农林科技大学 | A kind of biomass graphene modified raw lacquer heavy antisepsis composite coating and preparation method thereof |
| CN111977729A (en) * | 2020-08-17 | 2020-11-24 | 福建师范大学 | Polyurethane foam-based seawater desalination material and preparation method thereof |
| CN113005765A (en) * | 2021-04-07 | 2021-06-22 | 吉林大学 | Hydrophilic-hydrophobic 'Shuangshen' structure composite photothermal conversion material, preparation method and application thereof |
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| WO2006063284A2 (en) * | 2004-12-10 | 2006-06-15 | Rhodia Inc. | Method for durable hydrophilization of a hydrophobic surface |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3051183A1 (en) * | 2016-05-10 | 2017-11-17 | Cyril Marc Michel Grandpierre | SOLAR DISTILLATOR WITH HYDROPHILIC AND HYDROPHOBIC CARPETS |
| CN107987661A (en) * | 2017-12-29 | 2018-05-04 | 西北农林科技大学 | A kind of biomass graphene modified raw lacquer heavy antisepsis composite coating and preparation method thereof |
| CN111977729A (en) * | 2020-08-17 | 2020-11-24 | 福建师范大学 | Polyurethane foam-based seawater desalination material and preparation method thereof |
| CN113005765A (en) * | 2021-04-07 | 2021-06-22 | 吉林大学 | Hydrophilic-hydrophobic 'Shuangshen' structure composite photothermal conversion material, preparation method and application thereof |
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