CN110398077A - A kind of solar steam generating material based on TiN/ carbon foam composite two layer structure - Google Patents
A kind of solar steam generating material based on TiN/ carbon foam composite two layer structure Download PDFInfo
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- CN110398077A CN110398077A CN201910551223.XA CN201910551223A CN110398077A CN 110398077 A CN110398077 A CN 110398077A CN 201910551223 A CN201910551223 A CN 201910551223A CN 110398077 A CN110398077 A CN 110398077A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/10—Details of absorbing elements characterised by the absorbing material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Abstract
The present invention relates to a kind of solar steam generating materials based on TiN/ carbon foam composite two layer structure, are combined by the TiN nano structural material as upper layer optothermal material with the carbon foam as lower substrate material.Compared with prior art, the present invention realizes the localization of heat, has lower heat loss, and photothermal conversion efficiency realizes the solar steam transfer efficiency greater than 90.0% under the simulated solar irradiation of 1 light intensity.
Description
Technical field
The invention belongs to technical field of composite materials, are related to a kind of sun based on TiN/ carbon foam composite two layer structure
It can steam generation material.
Background technique
Effective use solar energy is the key that solve energy crisis and problem of environmental pollution.Currently, utilizing the side of solar energy
Formula can be divided into three classes: photoelectric conversion, Photochemical convertion and photothermal conversion.Generating steam using solar energy can be directly by the sun
Energy in light be converted into heat with and promote the evaporation of water, therefore converted in energy, sea water desalination, sewage treatment, liquid-liquid point
From and disinfection and health department etc. have huge application potential.
Currently, the optothermal material for heating and evaporating water is broadly divided into two major classes, carbon-based optothermal material and based on etc. from
The plasma optothermal material of daughter effect.
Carbon-based optothermal material receives the concern of many researchers due to preferable photo absorption performance.The face of carbon material itself
Color is black, and this " black matrix " material has very wide absorption band to sunlight.So far, in all kinds of carbon-based photo-thermal materials
In material, graphite, hollow carbon sphere and redox graphene are more promising photothermal conversion materiats.For example, graphene aerogel
Material can absorb most incident sunlight and solar energy is converted to thermal energy.Studies have shown that the material is in 1kW
m-2With 10kW m-2Light intensity under, reached about 55% and 84% solar steam transfer efficiency.But the application of carbon-based material
The certain toxicity for being limited in that its complicated preparation synthesis process and itself having.
The plasma material of nanoscale has been demonstrated the efficient photothermal conversion ability with part, and has applied
In solar steam generation technique.Common plasma nano material is the metal nano with plasma resonance effect
Material, such as Au, Ag and Pd etc..When this kind of material is in plasma resonance state, scattering and light absorption to light are all
It can enhance.Wherein, Au relies on the controllability of excellent photothermal conversion efficiency and dimensional structure, become most study extensively it is equal from
Daughter optothermal material, but price is more expensive.In addition to noble metal, inexpensive Cu and Al are also proved have good photo-thermal
Energy.For example, the Al nano particle of self assembly has 96% sun efficiency of light absorption in AAO template.Metal nanoparticle
Thermal stability is the key that the restriction application of plasma optothermal material, because at a higher temperature, these metal nanoparticles
Tend to lose its original structure and reunite together.
Therefore, if a kind of sun with outstanding photothermal conversion efficiency and the environmentally protective nontoxic low cost of technique can be developed
Energy steam generation material, will have a vast market application prospect.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind to be steeped based on TiN/ carbon
The solar steam generating material of foam composite two layer structure.The material superstructure being related to is TiN nano structural material, is had
Photothermal conversion efficiency height, wide absorption spectrum, nontoxic, lower-price characteristic；Lower substrate is that timber is made after carbonization treatment
Standby obtained carbon foam can be by the transport of water from bottom to top with good hydrophily, lower thermal conductivity and from flotation property
To evaporating surface.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of solar steam generating material based on TiN/ carbon foam composite two layer structure, by as upper layer photo-thermal
The TiN nano structural material of material is combined with the carbon foam as lower substrate material.
Further, the TiN nano structural material selects TiN nano particle, TiN nano wire, TiN nanotube, TiN
Nanofiber or TiN nano thin-film.
TiN nano particle is that commercial product is directly bought, and is purchased from the nanoscale of Shanghai ultra micro nanosecond science and technology Co., Ltd
CW-TiN-001；
TiN nano wire uses hydro-thermal method on titanium foil, nitrogenizes in ammonia later, titanium nitride nano line is prepared
(TiNWS), bibliography: Feng-Ming Z, Gang W, Li-Yao K, et al.Structure Characteristic
of Titanium Nitride Nanowires and Its Electrode Processes for V(Ⅱ)/V(Ⅲ)
Redox Couple[J].Acta Physicochimica Sinica,2017.
TiN nanotube is that commercial product is directly bought, and is purchased from the titanium nitride nano of Linyi City Kai Xing Electric Applicance Co., Ltd
Pipe array, caliber are 100nm or so.
TiN nanofiber is by being dissolved in N, N- dimethyl for zinc acetate dihydrate, tetrabutyl titanate and polyvinylpyrrolidone
The mixed solution of formamide and dehydrated alcohol is configured to the precursor solution for spinning；Again by precursor solution Static Spinning
The method of silk prepares precursor fibre；Then it is handled respectively in air and ammonia atmosphere high temperature, finally obtains titanium nitride and receive
Rice fiber, referenced patent CN200910117695.0 etc..
TiN nano thin-film utilizes the TiO of sol-gel method preparation2Nitridation is prepared in film Direct-Nitridation in ammonia
Titanium film.(bibliography: Wei H, Wu M, Dong Z, et al.Composition, microstructure and SERS
properties of titanium nitride thin film prepared via nitridation of sol-gel
derived titania thin films[J].Journal of Raman Spectroscopy,2017,48(4):578-
585.)
Further, the carbon foam is by the way that using timber as raw material, carbonization treatment is obtained.
Further, timber is natural beech.
Still more preferably, timber first cuts to obtain disk along its direction of growth before carbonization treatment, and to disk
Upper and lower surface carries out sanding and polishing processing.
Further, carburizing temperature is 320 DEG C, carbonization time 70min.
Further, TiN nano structural material and carbon foam are combined using cladding process, detailed process are as follows:
It takes dehydrated alcohol to mix with TiN nano structural material, obtains finely dispersed TiN nano structural material/ethyl alcohol point
Dispersion liquid；Then, it takes syringe to draw TiN nano structural material/alcohol dispersion liquid and is coated uniformly on carbon foam surface；It has coated
Cheng Hou, it is dry, that is, it completes.
Further, the addition of dehydrated alcohol and TiN nano structural material is compared for 10mL:10mg.
Further, drying temperature is 55 DEG C.
Further, TiN nano structural material and the mass ratio of carbon foam are (1:2000 to 1:200).
Compared with prior art, the invention has the following advantages that
1) present invention uses the design of double-layer structure, Water Transportation process and photo-thermal evaporation process is separated, energy
Conversion and steam generation process are located at the surface of superstructure, realize the localization and lower heat loss of heat.
2) of the invention by TiN nano junctions such as TiN nano particles (nano wire, nanotube, nanofiber, nano thin-film etc.)
Structure material is as upper layer optothermal material.TiN is a kind of outstanding plasma material, compared to common photothermal conversion material
Material, such as carbon-based material (carbon nanotube, graphene), semiconductor material, plasma precious metal material (Au, Ag) etc. have
To the broader absorption region of sunlight, the advantages that less expensive price, lower toxicity.
3) carbon foam that the present invention obtains timber after carbonization treatment is as lower substrate material.Timber is nature
The resource of boundary's very abundant, as base material, it has good hydrophily, and mechanical strength is high, and processing performance is good.And
During trees grow naturally, the axial microchannel of a large amount of transport moisture nutriment is formd.These microcellular structures are being carbonized
It can completely be preserved after processing, and can be by the transport of water from bottom to top to evaporating surface during water evaporation.It should
Carbon foam also has low-down thermal conductivity and from flotation property.
4) material of the present invention has outstanding photothermal conversion efficiency, realizes under simulated solar luminous intensity big
It is highest photothermal conversion efficiency in similar research in 90.0% solar energy-steam transfer efficiency.
5) material preparation process of the invention is environmentally protective nontoxic, low in cost, and it is good to recycle performance.
Detailed description of the invention
Fig. 1 is the X-ray diffractogram of TiN/ carbon foam (TBCF)；
Fig. 2 is the SEM photograph of TiN/ carbon foam (TBCF)；
Fig. 3 is the study of ultraviolet-visible-near infrared of TBCF series and log sample；
Fig. 4 is that test device occurs for solar steam；
Fig. 5 is evaporation water quality-time graph of carbon foam, water and TBCF series of samples；
The cycle performance that Fig. 6 is TBCF-1.5 is tested: (a) evaporating water quality-time graph；(b) evaporation rate (curve
Figure) and solar steam luminous efficiency (histogram).
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the technology of the present invention side
Implemented premised on case, the detailed implementation method and specific operation process are given, but protection scope of the present invention is unlimited
In following embodiments.
In following embodiment, used TiN nano particle is that commercial product is directly bought, and is purchased from Shanghai ultra micro and receives
The nanoscale CW-TiN-001 of rice Science and Technology Ltd..
TiN nano wire uses hydro-thermal method on titanium foil, nitrogenizes in ammonia later, titanium nitride nano line is prepared
(TiNWS), bibliography: Feng-Ming Z, Gang W, Li-Yao K, et al.Structure Characteristic
of Titanium Nitride Nanowires and Its Electrode Processes for V(Ⅱ)/V(Ⅲ)
Redox Couple[J].Acta Physicochimica Sinica,2017。
TiN nanotube is that commercial product is directly bought, and is purchased from the titanium nitride nano of Linyi City Kai Xing Electric Applicance Co., Ltd
Pipe array, caliber are 100nm or so.
TiN nanofiber is by being dissolved in N, N- dimethyl for zinc acetate dihydrate, tetrabutyl titanate and polyvinylpyrrolidone
The mixed solution of formamide and dehydrated alcohol is configured to the precursor solution for spinning；Again by precursor solution Static Spinning
The method of silk prepares precursor fibre；Then it is handled respectively in air and ammonia atmosphere high temperature, finally obtains titanium nitride and receive
Rice fiber, referenced patent CN200910117695.0 etc..
TiN nano thin-film utilizes the TiO of sol-gel method preparation2Nitridation is prepared in film Direct-Nitridation in ammonia
Titanium film.(bibliography: Wei H, Wu M, Dong Z, et al.Composition, microstructure and SERS
properties of titanium nitride thin film prepared via nitridation of sol-gel
derived titania thin films[J].Journal of Raman Spectroscopy,2017,48(4):578-
585.)。
Remaining raw material or technology unless otherwise instructed, then show conventional commercial raw material that it is this field or it is conventional at
Reason technology etc..
Embodiment 1
The preparation of material
(1) low-temperature carbonization method prepares carbon foam substrate
By natural beech along perpendicular to the direction that timber is grown be cut by wooden unit be cut into diameter be 25mm, with a thickness of
The disk of 10mm carries out sanding and polishing using upper and lower surface of the 320 mesh sand paper to the wood chip after cutting respectively, to remove because of machine
Surface pore structure caused by tool is processed blocks.
Pretreated sample is placed in the alumina crucible of sealing, heating carbonization is carried out in Muffle furnace.Carbonization temperature
Degree is 320 DEG C, and carbonization time is 70 minutes, 3 DEG C of min of heating rate-1。
(2) simple cladding process prepares TiN/ carbon foam double-layer structure
It measures 10ml dehydrated alcohol to mix with 10mg TiN powder of nanometric particles (NPs), is placed in constant temperature blender with magnetic force
On, (about 25 DEG C) mechanical stirring 30min is tentatively dispersed under room temperature.Using ultrasonic dispersion in ultrasonic cleaning machine
Ultrasonic disperse 30min, it is 1mgml that concentration, which is made,-1TiN nano particle/alcohol dispersion liquid.
Dispersion liquid is drawn using disposable sterilized injector for medical purpose, keeps syringe needle and carbon foam surface angled, slowly
Push syringe core rod simultaneously in the mobile needle point in carbon foam surface, so that homogeneous dispersion is coated in carbon foam surface.It is coating
While, drying is blowed with hair dryer, accelerates the evaporation of dehydrated alcohol.After the completion of coating, sample is put into freeze-day with constant temperature
In case, the dehydrated alcohol for making for aeration-drying 2 hours at 55 DEG C to remain in the sample is volatilized completely to get TBCF-0.5 is arrived (i.e.
TiN deposition is 0.5mg), TBCF-1.0 (i.e. TiN deposition is 1mg), TBCF-1.5 (i.e. TiN deposition is 1.5mg),
The TiN/ carbon foam sample such as TBCF-2.0 (i.e. TiN deposition is 2mg) and TBCF-4.0 (i.e. TiN deposition is 4mg).
TiN powder of nanometric particles employed in the present embodiment can also be received using TiN nano wire, TiN nanotube, TiN
The rice substitution such as fiber or TiN nano thin-film.
Embodiment 2
The characterization of material
(1) composition characterization
The D/max2550VB3+/PC type X that XRD test is produced using Rigaku International Corporation
X ray diffraction analysis x instrument levies the structure of sample prepared by embodiment 1, using Cu K α line (nm of λ=15.4056), test angles
Degree is 5 ° -85 °, and scanning speed is 5 °/min.XRD spectrum shows that 15 ° -30 ° of diffusing scattering peak is that carbon foam is amorphous in Fig. 1
The peak of carbon.And the diffraction maximum near 36.7 °, 42.6 ° and 61.9 ° is belonging respectively to TiN (Osbornite, syn, PDF 87-
0633) (111), (200), the corresponding diffraction maximum of (220) crystal face, and TiN characteristic diffraction peak is by force with the increase of TiN deposition
And increase.This illustrates that TiN successfully loads to carbon foam surface.
(2) morphology characterization
Using the Quanta 200FEG type field emission scanning electron microscope of FEI Co., to sample under the conditions of high vacuum is gold-plated
Surface and cross-section morphology analyzed, the SEM photograph of acquisition such as Fig. 2, (a)-(c) illustrate BCF rough surface shape straggly
Looks, this multi-level pattern provide a large amount of attachment site for TiN nano particle. (d)-(f),(g)-(i),(j)-
(l), (m)-(o) and (p)-(r) is respectively the table of TBCF-0.5, TBCF-1.0, TBCF-1.5, TBCF-2.0 and TBCF-4.0
Face SEM photograph.With the increase of TiN deposition, the surface coverage of TiN nano particle is gradually increased in carbon foam.Further
About 5 μm of thickness of fine and close coating can be formed on carbon foam surface by increasing TiN deposition.
(3) absorbing properties are tested
For the absorbing properties for characterizing TiN/ carbon foam two-layer composite (TBCF), different TiN nano particles are measured
Absorption curve of the TBCF of deposition in 200nm-2000nm spectral region.Using Japanese 3310 UV, visible light of Hitachi point
Light photometer, with BaSO4Reflectivity on the basis of and be set as 100%, the reflectivity of test sample is hundred relative to benchmark
Score.In order to preferably explain the absorption characteristic of TBCF, the absorption spectrum of log sample is also measured in same wavelength ranges
As control.Fig. 3 is the TBCF and carbon foam and original that TiN deposition is respectively 0.5mg, 1.0mg, 1.5mg and 2.0mg
The study of ultraviolet-visible-near infrared of the wooden sample.Carbon foam has more than log in 400-2000nm wave-length coverage
Strong light absorption.When the depositing TiN nano particle in carbon foam, composite material light absorption at 400-2000nm wavelength is bright
It is aobvious to increase, and with the increase of TiN deposition, TBCF is in ultraviolet and visible light region (200-800nm) and near infrared region
The absorbance of (800-2000nm) constantly increases, this shows that the presence of TiN improves the photo absorption performance of sample entirety.It is steeped with carbon
Foam is compared, and absorption of the TBCF in the wave-length coverage of 600-800nm, which has, obviously to be increased.Wherein, near 700nm wavelength
The wide absorption peak of appearance is caused by the plasma resonance effect of TiN nano particle.
The test of solar steam generation performance
(1) test device of performance occurs for solar steam
The test device that performance occurs for solar steam is autonomous Design, as shown in Figure 4.Test device is by four part groups
At: simulated solar light source 1, solar steam generating device 2, quality data collection device 3 and temperature data acquisition device 4 etc..
Simulated solar light source part uses power to provide mould for the xenon lamp (XQ500W type, upper sea blue bright Electronics Co., Ltd.) of 500kW
Quasi- nature sunlight (1kW m-2).The main part of solar steam generating device is TiN/ carbon foam, which can
Independently swims in the water surface and moved with the decline of the water surface.It is 27mm that the sample room for holding TiN/ carbon foam, which is basal diameter,
The cylinder of deep 30mm, sample room outside and bottom are provided with thermal insulation layer, filling with insulation material SiO in thermal insulation layer2Aeroge.It is whole
A steam generation facility is placed in electronic balance to measure mass change.
When simulated solar irradiation is radiated at the surface TBCF, evaporation process is immediately begun to.Electronic balance-computer terminal software
System automatically recorded the mass change of whole device every 1 minute, and mass change is that steam generating amount (leave by water vapor
Solar steam generator).The upper surface TBCF temperature and sample are measured and recorded at regular intervals with K-type thermocouple simultaneously
Water temperature below product.Entire duration of experiment is 2.5 hours.To avoid weather conditions, humidity, temperature etc. it is accidental because
Plain bring error is provided with three repeated experiments to each sample, the average value tested every time is taken to be calculated.
(2) calculating of solar steam transfer efficiency
In order to which the light thermal property of TBCF is quantitatively evaluated, the design calculates its solar steam transfer efficient by following formula
(η):
η=Qe/Qs
Wherein QsIt is intensity (the 1kW m of incident light-2), QeIt is power consumed by evaporation water, QeFollowing formula can be passed through
It is calculated:
Qe=Hv× dm/dt=Hv×r
Wherein HvFor the latent heat of vaporization (~2260kJ kg of water-1), m be evaporate water quality, t be evaporation progress when
Between, r is the evaporation rate of the water obtained by linear fit.
Performance occurs for the solar steam of 4.TiN/ carbon foam double-layer structure
(1) performance occurs for the solar steam in clear water
Steam generation performance of the TiN/ carbon foam double-layer structure of the present invention in clear water is as shown in Fig. 5 and table 1, in 1kW
m-2Under Intensity of the sunlight, the steam generation rate of the carbon foam of depositing TiN is not up to 1.171kg m-2 h-1, be clear water from
Body steam generation rate 0.483kg m-2h-12.4 times.The steam generation rate of TBCF and the deposition of TiN are not simple
Linear relationship.In the sample of five concentration gradients, sample TBCF-1.5 shows highest water evaporation rate 1.473kg m- 2h-1With sun steam transfer efficiency 92.5%.When TiN deposition is less than 1.5mg, the evaporation rate and the sun-steam of water turn
Efficiency is changed to increase with the increase of TiN deposition.
Table 1
| Sample | Water evaporation rate r/kg m-2h-1 | Solar steam efficiency eta/% |
| Water | 0.483 | 30.3% |
| BCF | 1.171 | 73.5% |
| TBCF-0.5 | 1.347 | 84.6% |
| TBCF-1.0 | 1.411 | 88.6% |
| TBCF-1.5 | 1.473 | 92.5% |
| TBCF-2.0 | 1.430 | 89.8% |
| TBCF-4.0 | 1.352 | 84.9% |
Cycle performance test, each circulation continuous 3h, every time by sample at the end of experiment have been carried out to sample TBCF-1.5
Drying is taken out, until carrying out next circulation experiment after being completely dried.Experimental data is collected to carry out after processing analysis as shown in Figure 6.
The water evaporation mass-time curve co-insides degree of five circulation experiments is larger, and solar steam transfer efficiency is stablized on 92% left side
The right side illustrates that the present invention recycles performance with good in clear water.
(2) performance occurs for the solar steam in seawater
Sea water desalination test of the present invention seawater used is derived from East China Sea natural sea-water.TiN/ carbon foam is TBCF-
1.5 sample.Sea water desalination experimental data is shown in Table 2.As it can be seen that solar steam with higher turns TiN/ carbon foam in the seawater
Efficiency is changed, its solar steam transfer efficiency is still 85% or so after ten evaporation of seawater circulation experiments.
Table 2
Hair can be understood and used the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to above-mentioned implementations
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (10)
1. a kind of solar steam generating material based on TiN/ carbon foam composite two layer structure, which is characterized in that it is by conduct
The TiN nano structural material of upper layer optothermal material is combined with the carbon foam as lower substrate material.
2. a kind of solar steam generating material based on TiN/ carbon foam composite two layer structure according to claim 1,
It is characterized in that, the TiN nano structural material selects TiN nano particle, TiN nano wire, TiN nanotube, TiN nanofiber
Or TiN nano thin-film.
3. a kind of solar steam generating material based on TiN/ carbon foam composite two layer structure according to claim 1,
It is characterized in that, the carbon foam is by the way that using timber as raw material, carbonization treatment is obtained.
4. a kind of solar steam generating material based on TiN/ carbon foam composite two layer structure according to claim 3,
It is characterized in that, timber is natural beech.
5. a kind of solar steam generating material based on TiN/ carbon foam composite two layer structure according to claim 4,
It is characterized in that, timber first cuts to obtain disk along its direction of growth before carbonization treatment, and disk upper and lower surface is beaten
Grinding and polishing light processing.
6. a kind of solar steam generating material based on TiN/ carbon foam composite two layer structure according to claim 3,
It is characterized in that, carburizing temperature is 320 DEG C, carbonization time 70min.
7. a kind of solar steam generating material based on TiN/ carbon foam composite two layer structure according to claim 1,
It is characterized in that, TiN nano structural material and carbon foam are combined using cladding process, detailed process are as follows:
It takes dehydrated alcohol to mix with TiN nano structural material, obtains finely dispersed TiN nano structural material/alcohol dispersion liquid；
Then, it takes syringe to draw TiN nano structural material/alcohol dispersion liquid and is coated uniformly on carbon foam surface；After the completion of coating, do
It is dry, that is, it completes.
8. a kind of solar steam generating material based on TiN/ carbon foam composite two layer structure according to claim 7,
It is characterized in that, the addition of dehydrated alcohol and TiN nano structural material is compared for 10mL:10mg.
9. a kind of solar steam generating material based on TiN/ carbon foam composite two layer structure according to claim 7,
It is characterized in that, drying temperature is 55 DEG C.
10. a kind of solar steam generating material based on TiN/ carbon foam composite two layer structure according to claim 1,
It is characterized in that, TiN nano structural material and the mass ratio of carbon foam are 1:100-2000.
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| CN111844307B (en) * | 2020-06-11 | 2021-04-16 | 东北林业大学 | Carbonized wood, preparation method thereof and solar steam generation device |
| WO2021242705A1 (en) * | 2020-05-24 | 2021-12-02 | Matregenix, Inc. | System and method for solar-powered desalination and water purification |
| WO2021258596A1 (en) * | 2020-06-24 | 2021-12-30 | 华南理工大学 | Pt/tin high-efficiency photothermal synergistic catalyst and preparation method therefor and use thereof |
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| CN111844307B (en) * | 2020-06-11 | 2021-04-16 | 东北林业大学 | Carbonized wood, preparation method thereof and solar steam generation device |
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Application publication date: 20191101 |