CN114960190A - Preparation method of basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation - Google Patents
Preparation method of basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation Download PDFInfo
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- CN114960190A CN114960190A CN202210524884.5A CN202210524884A CN114960190A CN 114960190 A CN114960190 A CN 114960190A CN 202210524884 A CN202210524884 A CN 202210524884A CN 114960190 A CN114960190 A CN 114960190A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 229920002748 Basalt fiber Polymers 0.000 title claims abstract description 54
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 54
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 230000008020 evaporation Effects 0.000 title claims abstract description 30
- 238000001704 evaporation Methods 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 31
- 239000004744 fabric Substances 0.000 claims abstract description 31
- 239000010453 quartz Substances 0.000 claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 18
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052786 argon Inorganic materials 0.000 claims abstract description 16
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 238000002474 experimental method Methods 0.000 claims abstract description 8
- 238000009832 plasma treatment Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000005303 weighing Methods 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000012159 carrier gas Substances 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000009967 tasteless effect Effects 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims 2
- 229910052739 hydrogen Inorganic materials 0.000 claims 2
- 150000002431 hydrogen Chemical class 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 5
- 238000003892 spreading Methods 0.000 description 5
- 230000007480 spreading Effects 0.000 description 5
- 239000013505 freshwater Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
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- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000764238 Isis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011174 green composite Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000002082 metal nanoparticle Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
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- 230000004044 response Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
-
- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
- D06M10/025—Corona discharge or low temperature plasma
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a preparation method of basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation, which comprises the following specific steps: step 1: the large basalt fiber cloth is cut into small pieces by using scissors, so that the subsequent experiment is facilitated; step 2: preparing an exogenously injected carbon source solution, weighing ferrocene in o-dichlorobenzene, and stirring until the ferrocene is completely dissolved; and step 3: paving the basalt fiber cloth in the step 1 on a quartz boat, introducing argon, and heating; and 4, step 4: carrying out hydrophilic treatment on the basalt fiber-carbon nanotube sponge composite material, changing a plasma cavity into a vacuum environment through a vacuum pump, and carrying out plasma treatment on the surface of the material by using a plasma cleaning machine. The invention adopts basalt fiber as a template and carbon nanotube sponge as a photothermal element, has simple process and low material cost, provides a new idea for preparing the basalt fiber-carbon nanotube sponge composite material, and has wide application in solar water evaporation.
Description
Technical Field
The invention relates to the technical field of carbon nanotubes, in particular to a preparation method of basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation.
Background
In recent years, the amount of available fresh water resources in China is becoming more scarce due to pollution of the natural environment and artificial waste. The human beings destroy the environment and improperly utilize natural resources, so that the global climate is warmed, the precipitation is influenced, and the shortage of fresh water resources is aggravated. In addition to saving water, new methods for obtaining fresh water resources are needed to obtain sufficient living fresh water resources for human beings. Inspired by natural evaporation, solar evaporation is taken as a ubiquitous photo-thermal conversion process, and attracts great attention of people with high-efficiency solar conversion efficiency and huge industrial potential. Solar evaporation technology, using solar light as an energy source, is becoming a promising solution that is environmentally friendly. However, the current solar evaporation technology has the problems of poor stability, high material cost and complex manufacturing process. The basalt fiber has the comprehensive advantages of rich raw material reserves, easy preparation, good thermal and physical stability, environmental friendliness and the like. Therefore, the basalt fiber is modified by the work, and the cheap and green composite fiber material is prepared for solar water evaporation. A carbon nano tube is introduced to the surface of basalt fiber to serve as a photo-thermal element, and a novel modification method is provided: growing carbon nanotubes on the surface of the basalt fiber cloth in situ, and forming a self-supporting porous stable structure through the physical entanglement of the carbon nanotubes. The specific surface area of basalt is greatly increased by growing the carbon nano tube, and the interaction and the photo-thermal performance of a basalt interface are enhanced at the same time.
Carbon Nanotubes (CNTs) are anisotropic, tubular, one-dimensional nanomaterials with very large aspect ratios and very high heat transfer capability along their axial direction. CNTs have been widely noticed since their discovery with excellent heat transfer properties and high thermal conductivity, are considered to be the most potential novel nanomaterials, and are expected to be widely used in many fields. The carbon nano tube can be effectively assembled and compounded with various structural materials, and further a photo-thermal conversion device with an actual function is formed. In addition, compared with other photo-thermal material systems, the carbon nanotube has the advantages of abundant natural reserves, relatively low preparation cost, small environmental impact, extremely high absorption efficiency on sunlight and wider excitation wavelength range. Due to its unique natural advantages, carbon nanotubes have become a hot research topic in current photothermal conversion materials. However, as research progresses, no one has been able to interface basalt fibers with carbon nanotubes for solar water evaporation.
Because the diameter of the basalt fiber is only micrometer and has better light absorption only in ultraviolet and near infrared bands, the application of the basalt fiber in the field of water evaporation is greatly limited. Therefore, in the invention, the basalt fiber is used for preparing a material with a multilevel structure by introducing the carbon nano tube as a photothermal element. Firstly, cutting a large basalt fiber cloth bought from the market into small pieces, and then growing a carbon nano tube on the surface of the basalt fiber in situ by using an exogenous injection method. The carbon nano tube can tangle and coat the basalt fiber cloth to form a unique multilevel structure, so that the light coherence length is increased, light captured at any angle on the surface of the carbon nano tube can be reflected for multiple times in the carbon nano tube, the sufficient absorption of energy is ensured, the dissipation of light is reduced, and the overall water evaporation efficiency can be improved. The invention has the innovation point that the metal nano particles on the surface of the basalt are used as the catalyst, the carbon nano tubes are directly grown on the surface of the basalt in situ, and the three-dimensional basalt macroscopic body with excellent water evaporation performance is prepared, so that the application field of basalt fibers can be widened, and the problems of complex manufacturing process, high material cost and the like in the solar evaporation technology can be solved.
Disclosure of Invention
The invention aims to provide a preparation method of basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation, which comprises the following specific steps:
step 1: cutting large basalt fiber cloth into small pieces by using scissors, so as to facilitate subsequent experiments;
step 2: preparing an exogenously injected carbon source solution, weighing ferrocene in o-dichlorobenzene, and stirring until the ferrocene is completely dissolved;
and step 3: paving the basalt fiber cloth in the step 1 on a quartz boat, introducing argon, heating, simultaneously opening a heating belt to heat to 250 ℃, starting a precise injection pump when the temperature is increased to 860 ℃, injecting a carbon source into the quartz tube through a capillary tube, and adjusting H 2 Taking the flow rate of Ar as a carrier gas to bring the vaporized carbon source solution to a reaction area for the growth of the carbon nanotube sponge, wherein the growth time is 4 hours;
and 4, step 4: carrying out hydrophilic treatment on the basalt fiber-carbon nanotube sponge composite material, changing the cavity of the plasma into a vacuum environment through a vacuum pump, and carrying out plasma treatment on the surface of the material by using a plasma cleaning machine to finish the preparation.
Preferably, the size of the small basalt fiber cloth in the step 1 is 3.6 × 3.2 cm.
Preferably, the concentration of the exogenously injected carbon source solution in the step 2 is 0.06 g/moL.
Preferably, the argon gas is introduced in step 3 to exhaust the air in the quartz tube, so that the air is in an inert gas environment and is difficult to dissolve in water, the argon gas is introduced at a rate of 100mL/min, the temperature rise rate is 10 ℃/min, the carbon source is injected into the quartz tube through the capillary at a rate of 0.13mL/min, and the H is adjusted 2 The flow rate of (2) was 200mL/min, and the flow rate of Ar was adjusted to 1600 mL/min.
Preferably, in the step 3, the introduced argon gas is compressed argon gas, the product purity is more than or equal to 99.99 percent, the melting point is-189.2 ℃, the boiling point is 185.7 ℃, the colorless and tasteless inert gas is stored by using a seamless steel cylinder and is slightly soluble in water, the introduced hydrogen gas is compressed hydrogen gas, the product purity is more than or equal to 99.99 percent, the melting point is-259.2 ℃, the boiling point is-252.8 ℃, and the colorless and tasteless gas is stored by using a seamless steel cylinder.
Preferably, in step 4, the plasma has a power of 300W, the time for processing the sample is 5min, the gas selected by the plasma is oxygen, and the vacuum degree in the vacuum environment is about 0.3-0.4mbar when the plasma cleaning machine works.
Compared with the prior art, the invention has the beneficial effects that: the basalt fiber cloth is used as a template, the carbon nanotube sponge is used as a photothermal element, the process is simple, the material cost is low, a new idea is provided for the preparation of the basalt fiber-carbon nanotube sponge composite material, the basalt fiber cloth is widely applied to solar water evaporation, and the water evaporation performance of the basalt fiber cloth after the carbon nanotube sponge grows is improved compared with that of pure basalt fiber cloth. Before growing the carbon nano tube sponge, the water distribution evaporation rate of the basalt fiber is 0.82kg/m 2 h, after growing the carbon nano tube sponge, the speed is increased to 0.91kg/m 2 h。
Drawings
FIG. 1 is an SEM image of basalt fiber cloth;
FIG. 2 is an SEM image of basalt fiber cloth after growing carbon nanotube sponge;
FIG. 3 is a curve showing the change of the surface temperature of the basalt fiber cloth with pure water, basalt fiber cloth and growing carbon nanotube sponge with time under illumination;
FIG. 4 is a graph showing the weight of evaporated basalt fiber cloth water from pure water, basalt fiber cloth, and a sponge of growing carbon nanotubes in response to light over time.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
step 1: the large basalt fiber cloth is cut into small pieces of 3.6 x 3.2cm by using scissors, so that the subsequent experiment is facilitated.
Step 2: taking 3g of Ferrocene (Ferrocene, Fe (C) 5 H 5 ) 2 ) In 50mL of o-dichlorobenzene (Orthodiclorobenzene, C) 7 H 6 Cl 2 ) Stirring until the solution is completely dissolved, and preparing 0.06g/moL of exogenously injected carbon source solution.
And step 3: spreading the basalt fiber cloth in the step 1 on a quartz boat, introducing 100mL/min argon to exhaust air in the quartz boat, heating at 10 ℃/min, simultaneously opening a heating belt to heat to 250 ℃, starting a precision injection pump to inject a carbon source into the quartz boat through a capillary at 0.13mL/min when the temperature is increased to 860 ℃, and adjusting H 2 The flow rate of the carbon source solution is 200mL/min, the flow rate of Ar is 1600mL/min and is taken as carrier gas to bring the vaporized carbon source solution to the reaction area for the growth of the carbon nanotube sponge, and the growth time is 4 h.
And 4, step 4: carrying out hydrophilic treatment on the basalt fiber-carbon nanotube sponge composite material, and carrying out plasma treatment on the surface of the material by using a plasma cleaning machine. The vacuum environment is changed in the plasma cavity through the vacuum pump, the power of 300W is selected for the plasma, oxygen is used as gas, the vacuum degree is 0.35mbar, and the sample is treated for 5 min.
Example 2:
step 1: the large basalt fiber cloth is cut into small pieces of 3.6 x 3.2cm by using scissors, so that the subsequent experiment is facilitated.
Step 2: 3g Ferrocene (Ferrocene, Fe (C) 5 H 5 ) 2 ) In 50mL of o-dichlorobenzene (Orthodiclorobenzene, C) 7 H 6 Cl 2 ) Stirring until the solution is completely dissolved, and preparing 0.06g/moL of exogenously injected carbon source solution.
And 3, step 3: spreading the basalt fiber cloth in the step 1 on a quartz boat, introducing 100mL/min argon to exhaust air in the quartz boat, heating at 10 ℃/min, simultaneously opening a heating belt to heat to 250 ℃, starting a precision injection pump to inject a carbon source into the quartz boat through a capillary at 0.10mL/min when the temperature is increased to 860 ℃, and adjusting H 2 Taking the vaporized carbon source solution as carrier gas at the flow rate of 200mL/min and the flow rate of Ar of 1600mL/min to bring the vaporized carbon source solution to a reaction zone for the growth of the carbon nanotube sponge, wherein the growth time isIs 4 h.
And 4, step 4: carrying out hydrophilic treatment on the basalt fiber-carbon nanotube sponge composite material, and carrying out plasma treatment on the surface of the material by using a plasma cleaning machine. The vacuum environment is changed in the plasma cavity through the vacuum pump, the power of 300W is selected for the plasma, oxygen is used as gas, the vacuum degree is 0.35mbar, and the sample is treated for 5 min.
Example 3:
step 1: the large basalt fiber cloth is cut into small pieces of 3.6 x 3.2cm by using scissors, so that the subsequent experiment is facilitated.
Step 2: taking 3g of Ferrocene (Ferrocene, Fe (C) 5 H 5 ) 2 ) In 50mL of o-dichlorobenzene (Orthodiclorobenzene, C) 7 H 6 Cl 2 ) Stirring until the solution is completely dissolved, and preparing 0.06g/moL of exogenously injected carbon source solution.
And step 3: spreading the basalt fiber cloth in the step 1 on a quartz boat, introducing 100mL/min argon to exhaust air in the quartz boat, heating at 10 ℃/min, simultaneously opening a heating belt to heat to 250 ℃, starting a precision injection pump to inject a carbon source into the quartz boat through a capillary at 0.15mL/min when the temperature is increased to 860 ℃, and adjusting H 2 The flow rate of the carbon source solution is 200mL/min, the flow rate of Ar is 1600mL/min and is taken as carrier gas to bring the vaporized carbon source solution to the reaction area for the growth of the carbon nanotube sponge, and the growth time is 4 h.
And 4, step 4: carrying out hydrophilic treatment on the basalt fiber-carbon nanotube sponge composite material, and carrying out plasma treatment on the surface of the material by using a plasma cleaning machine. The plasma cavity is changed into a vacuum environment through a vacuum pump, the plasma is processed for 5min by adopting 300W power, oxygen is used as gas, and the vacuum degree is 0.35 mbar.
Example 4:
step 1: the large basalt fiber cloth is cut into small pieces of 3.6 x 3.2cm by using scissors, so that the subsequent experiment is facilitated.
Step 2: taking 3g of Ferrocene (Ferrocene, Fe (C) 5 H 5 ) 2 ) In 50mL of o-dichlorobenzene (Orthodiclorobenzene, C) 7 H 6 Cl 2 ) Stirring until the solution is completely dissolved, and preparing 0.06g/moL of exogenously injected carbon source solution.
And step 3: spreading the basalt fiber cloth in the step 1 on a quartz boat, introducing 100mL/min argon to exhaust air in the quartz boat, heating at 10 ℃/min, simultaneously opening a heating belt to heat to 250 ℃, starting a precision injection pump to inject a carbon source into the quartz boat through a capillary at 0.13mL/min when the temperature is increased to 860 ℃, and adjusting H 2 The flow rate of the carbon source solution is 200mL/min, the flow rate of Ar is 1600mL/min and is taken as carrier gas to bring the vaporized carbon source solution to the reaction area for growing the carbon nanotube sponge, and the growing time is 3 h.
And 4, step 4: carrying out hydrophilic treatment on the basalt fiber-carbon nanotube sponge composite material, and carrying out plasma treatment on the surface of the material by using a plasma cleaning machine. The vacuum environment is changed in the plasma cavity through the vacuum pump, the power of 300W is selected for the plasma, oxygen is used as gas, the vacuum degree is 0.35mbar, and the sample is treated for 5 min.
Example 5:
step 1: the large basalt fiber cloth is cut into small pieces of 3.6 x 3.2cm by using scissors, so that the subsequent experiment is facilitated.
Step 2: taking 3g of Ferrocene (Ferrocene, Fe (C) 5 H 5 ) 2 ) In 50mL of o-dichlorobenzene (Orthodiclorobenzene, C) 7 H 6 Cl 2 ) Stirring until the solution is completely dissolved, and preparing 0.06g/moL of exogenously injected carbon source solution.
And step 3: spreading the basalt fiber cloth in the step 1 on a quartz boat, introducing 100mL/min argon to exhaust air in the quartz boat, heating at 10 ℃/min, simultaneously opening a heating belt to heat to 250 ℃, starting a precision injection pump to inject a carbon source into the quartz boat through a capillary at 0.13mL/min when the temperature is increased to 860 ℃, and adjusting H 2 The flow rate of the carbon source solution is 200mL/min, the flow rate of Ar is 1600mL/min and is taken as carrier gas to bring the vaporized carbon source solution to the reaction area for the growth of the carbon nanotube sponge, and the growth time is 5 h.
And 4, step 4: carrying out hydrophilic treatment on the basalt fiber-carbon nanotube sponge composite material, and carrying out plasma treatment on the surface of the material by using a plasma cleaning machine. The vacuum environment is changed in the plasma cavity through the vacuum pump, the power of 300W is selected for the plasma, oxygen is used as gas, the vacuum degree is 0.35mbar, and the sample is treated for 5 min.
Application test:
the materials prepared in the examples were subjected to a water evaporation performance test. In the water evaporation rate test, a xenon lamp is used for simulating sunlight, and the illumination intensity is 1000W/m 2 The test time is 1h, and the sample area is 3.6 x 3.2 cm-0.001152 m 2 (ii) a In the test process, an electronic balance is used for recording mass change, a stopwatch is used for recording time change, and a thermal infrared imager is used for recording material surface temperature change. The surface temperature change during evaporation is shown in fig. 3, and the evaporation rate performance test and results are shown in fig. 4.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A preparation method of basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation is characterized by comprising the following steps: the preparation method of the basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation comprises the following specific steps:
step 1: the large basalt fiber cloth is cut into small pieces by using scissors, so that the subsequent experiment is facilitated;
step 2: preparing an exogenously injected carbon source solution, weighing ferrocene in o-dichlorobenzene, and stirring until the ferrocene is completely dissolved;
and step 3: paving the basalt fiber cloth in the step 1 on a quartz boat, introducing argon, heating, simultaneously opening a heating belt to heat to 250 ℃, starting a precise injection pump when the temperature is increased to 860 ℃, injecting a carbon source into the quartz tube through a capillary tube, and adjusting H 2 Taking the flow rate of Ar as a carrier gas to bring the vaporized carbon source solution to a reaction area for carrying out carbon nanotube spongeGrowing for 4 h;
and 4, step 4: carrying out hydrophilic treatment on the basalt fiber-carbon nanotube sponge composite material, changing the cavity of the plasma into a vacuum environment through a vacuum pump, and carrying out plasma treatment on the surface of the material by using a plasma cleaning machine to finish the preparation.
2. The preparation method of the basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation according to claim 1, wherein the preparation method comprises the following steps: the size of the small basalt fiber cloth in the step 1 is 3.6 x 3.2 cm.
3. The preparation method of the basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation according to claim 1, wherein the preparation method comprises the following steps: the concentration of the exogenously injected carbon source solution in the step 2 is 0.06 g/moL.
4. The preparation method of the basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation according to claim 1, wherein the preparation method comprises the following steps: in the step 3, the argon is introduced to discharge the air in the quartz tube, so that the air is in an inert gas environment and is difficult to dissolve in water, the argon introducing rate is 100mL/min, the temperature rising rate is 10 ℃/min, the carbon source injection speed into the quartz tube through the capillary tube is 0.13mL/min, and H is adjusted 2 The flow rate of (2) was 200mL/min, and the flow rate of Ar was adjusted to 1600 mL/min.
5. The preparation method of the basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation according to claim 1, wherein the preparation method comprises the following steps: in the step 3, the introduced argon is compressed argon, the purity of the product is more than or equal to 99.99 percent, the melting point is-189.2 ℃, the boiling point is 185.7 ℃, the colorless and tasteless inert gas is stored by using a seamless steel cylinder, is slightly soluble in water, the introduced hydrogen is compressed hydrogen, the purity of the product is more than or equal to 99.99 percent, the melting point is-259.2 ℃, the boiling point is-252.8 ℃, and the colorless and tasteless gas is stored by using a seamless steel cylinder.
6. The preparation method of the basalt fiber in-situ growth carbon nanotube sponge for solar water evaporation according to claim 1, wherein the preparation method comprises the following steps: in the step 4, the plasma has the power of 300W, the time for processing the sample is 5min, the gas selected by the plasma is oxygen, and the vacuum degree in the vacuum environment is about 0.3-0.4mbar when the plasma cleaning machine works.
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Citations (6)
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|---|---|---|---|---|
| CN101412592A (en) * | 2008-11-12 | 2009-04-22 | 东华大学 | Surface modification method for basalt fibre by using plasma treatment and carbon nano-tube coating |
| CN102199872A (en) * | 2011-03-29 | 2011-09-28 | 北京航空航天大学 | Method for in-situ growing carbon nanotubes on fiber surfaces |
| US20150361613A1 (en) * | 2013-01-10 | 2015-12-17 | Universite De Haute Alsace | Method for preparing an elongate material provided with grafted carbon nanostructures, and associated device and product |
| CN109173344A (en) * | 2018-08-31 | 2019-01-11 | 周晓东 | A kind of preparation method of hydrophobicity three-dimensional porous material |
| CN111023601A (en) * | 2019-12-10 | 2020-04-17 | 武汉中科先进技术研究院有限公司 | Application of basalt fiber fabric in photothermal conversion |
| CN114094241A (en) * | 2022-01-20 | 2022-02-25 | 北京大学 | Lithium-air battery based on carbon nanotube sponge positive electrode with controllable compression and gradient infiltration and assembling method thereof |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101412592A (en) * | 2008-11-12 | 2009-04-22 | 东华大学 | Surface modification method for basalt fibre by using plasma treatment and carbon nano-tube coating |
| CN102199872A (en) * | 2011-03-29 | 2011-09-28 | 北京航空航天大学 | Method for in-situ growing carbon nanotubes on fiber surfaces |
| US20150361613A1 (en) * | 2013-01-10 | 2015-12-17 | Universite De Haute Alsace | Method for preparing an elongate material provided with grafted carbon nanostructures, and associated device and product |
| CN109173344A (en) * | 2018-08-31 | 2019-01-11 | 周晓东 | A kind of preparation method of hydrophobicity three-dimensional porous material |
| CN111023601A (en) * | 2019-12-10 | 2020-04-17 | 武汉中科先进技术研究院有限公司 | Application of basalt fiber fabric in photothermal conversion |
| CN114094241A (en) * | 2022-01-20 | 2022-02-25 | 北京大学 | Lithium-air battery based on carbon nanotube sponge positive electrode with controllable compression and gradient infiltration and assembling method thereof |
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