CN110513668A - A kind of super hydrophilic carbonization potato foam and preparation method thereof and in the aborning application of solar steam - Google Patents
A kind of super hydrophilic carbonization potato foam and preparation method thereof and in the aborning application of solar steam Download PDFInfo
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- CN110513668A CN110513668A CN201910779994.4A CN201910779994A CN110513668A CN 110513668 A CN110513668 A CN 110513668A CN 201910779994 A CN201910779994 A CN 201910779994A CN 110513668 A CN110513668 A CN 110513668A
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- potato
- carbonization
- foam
- super hydrophilic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/60—Details of absorbing elements characterised by the structure or construction
-
- 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
Abstract
The present invention provides super hydrophilic carbonization potato foam of one kind and preparation method thereof and in the aborning application of solar steam, use potato for raw material, carbonization potato foam is obtained by carbonization, carbonization potato foam is class honeycomb bobbles structure, there is a large amount of large aperture pore distribution, there is bobbles abundant distribution in duct, bobbles greatly improves water transport Movement Capabilities, capillary force is greatly enhanced, can be used for efficient solar steam and generate.Biomass carbonization material first-class compared to the carbonization mushroom mentioned in reporting before, the sugarcane that is carbonized, carbonization kelp, carbonization bamboo, carbide wood etc., the evaporation efficiency of present invention carbonization potato foam greatly improve.
Description
Technical field
The present invention relates to solar steam generation, specially a kind of super hydrophilic carbonization potato foam and preparation method thereof and
The aborning application of solar steam.
Background technique
Shortage of fresh water is all one of the significant challenge that the mankind are faced all the time, although nearly 3/4ths world
It is covered by ocean, but resident can only use the 10% of total water resource, so desalination technology arouses great concern.
Solar steam is generated has huge Solar use latent because of it in a variety of applications such as sea water desalination, wastewater treatment and sterilization
Power and receive significant attention.High-efficiency solar steam generation depends on the design and exploitation of high-performance solar hot-cast socket material.
In recent years, interface solar steam, which generates, is used as a kind of up-and-coming desalination technology, increasingly by industry and
The concern of art circle.
Plasma metal nanoparticle has good photothermal conversion performance, but preparation cost is high, limits its big rule
Mould application.It is more and more to study since carbon-based material has good broadband light absorptive and good corrosion resistance
Work concentrates on effective solar energy gasification carbon-based material.Traditional carbon-based material has wide wave-length coverage, light absorptive, light steady
It is the advantages that qualitative good, but complex manufacturing process, at high cost, it is not expansible.Biological material is as environmentally protective carbon source materials
Application is generated for efficient solar steam just receiving more and more attention, biological material prepare it is simple, at low cost, but
It is current biological material, such as carbonization mushroom, carbonization sugarcane, carbonization kelp, carbonization bamboo, carbide wood are first-class etc., evaporation
Efficiency is generally relatively low.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides super hydrophilic carbonization potato foam of one kind and preparation method thereof
It is greatly improved with the evaporation efficiency in the aborning application of solar steam, prepared super hydrophilic carbonization potato foam.
The present invention is to be achieved through the following technical solutions:
A kind of preparation method of super hydrophilic carbonization potato foam, potato is carbonized, super hydrophilic carbonization potato foam is obtained.
Preferably, specifically comprise the following steps:
Step 1, potato decortication is cleaned；
Step 2, clean potato is refrigerated；
Step 3, the potato after refrigeration is freeze-dried；
Step 4, the potato after freeze-drying is carbonized.
Further, step 1 is specifically: potato decortication being cleaned, is then cut into the potato chips with a thickness of 2-10mm, then will
Potato chips cleans up.
Further, in step 4, carburizing temperature is 400 DEG C -700 DEG C.
Further, in step 4, carbonization time is 6-8 hours.
Further, in step 4, carburizing temperature is warming up to the heating rate of (5 DEG C -10 DEG C)/min before carbonization.
The super hydrophilic carbonization potato foam that the preparation method is prepared.
It preferably, is class honeycomb bobbles structure.
The super hydrophilic carbonization potato foam is in the aborning application of solar steam.
Compared with prior art, the invention has the following beneficial technical effects:
The present invention uses potato for raw material, obtains carbonization potato foam by carbonization, carbonization potato foam is class honeycomb suede
Spherical structure has a large amount of large aperture pore distribution, has bobbles abundant distribution in duct, and bobbles greatly improves water transport
Ability greatly enhances capillary force, therefore, different from traditional carbon foam surface hydrophobic, the carbon that the present invention obtains
Changing potato foam has super hydrophilic characteristic, can be used for efficient solar steam and generates.Carbonization potato foam is reported before possessing
Nanostructure noble metal sun light absorption and transition material high-absorbable energy, in 200nm-2500nm spectral region interior suction
Up to 96.2% is received, compared to the carbonization mushroom, carbonization sugarcane, carbonization kelp, carbonization bamboo, carbonization wood mentioned in report before
Etc. biomass carbonization material, the present invention be carbonized potato foam evaporation efficiency greatly improve.
Detailed description of the invention
Fig. 1 is the evaporation rate under 1 intensity of illumination, and Carbonized potato is present invention carbonization potato foam,
Natural potato is that Deionized water is that Saltwater is salt water；
Fig. 2 is that the SEM of carbonization potato foam schemes, 200 times of (a), (b) 1000 times；
Fig. 3 is water hookup, hookup of the water droplet in carbonization potato foam surface when (a) is 0S；It (b) is 30ms carbonization soil
The hookup that beans foam completely absorbs water.
Fig. 4 is the absorption spectrum of carbonization potato foam.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
The present invention provides a kind of new biological materials, are the preparation method of carbonization potato foam below:
Some fresh potatoes are bought from nearest food market, then peeling is cleaned for several times with pure water, is then cut into thickness ladder
Degree is the cylindrical piece of 2-10mm, then places it in 500ml and fill in the beaker of deionized water and clean for several times；
The potato block of cleaned different gradients is placed in 12 hours of refrigerator cold-storage；
Potato block through having refrigerated is put into freeze drier and is freeze-dried 24 hours, and the shape to guarantee potato is not variable
Shape；
Finally the potato being freeze-dried is placed in vacuum crucible furnace and is carbonized, with heating rate (5 DEG C -10 DEG C)/
Min is warming up to carburizing temperature, and carburizing temperature is 400 DEG C -700 DEG C, keeps the temperature 6-8 hours under carburizing temperature.
After above four steps, the carbonization potato foam under different carburizing temperatures has been obtained.
Embodiment 1
Potato decortication is cleaned with pure water, is then cut into the cylindrical piece with a thickness of 2mm, then places it in 500ml and fills
It is cleaned for several times in the beaker of deionized water；
The potato block of cleaned different gradients is placed in 12 hours of refrigerator cold-storage；
Potato block through having refrigerated is put into freeze drier and is freeze-dried 24 hours, and the shape to guarantee potato is not variable
Shape；
Finally the potato being freeze-dried is placed in vacuum crucible furnace and is carbonized, with 5 DEG C/min of heating rate heating
It to carburizing temperature, is carbonized 6 hours under carburizing temperature, carburizing temperature is respectively 400 DEG C, 500 DEG C, 600 DEG C, 700 DEG C.
After above four steps, the carbonization potato foam under different carburizing temperatures has been obtained.
Embodiment 2
Potato decortication is cleaned with pure water, thickness gradient is then cut into and is the cylindrical piece of 2-10mm, then place it in
500ml is filled in the beaker of deionized water and is cleaned for several times；
The potato block of cleaned different gradients is placed in 12 hours of refrigerator cold-storage；
Potato block through having refrigerated is put into freeze drier and is freeze-dried 24 hours, and the shape to guarantee potato is not variable
Shape；
Finally the potato being freeze-dried is placed in vacuum crucible furnace and is carbonized, with 8 DEG C/min of heating rate heating
To 600 DEG C of carburizing temperature, it is carbonized 7 hours at 600 DEG C.
After above four steps, the carbonization potato foam under different carburizing temperatures has been obtained.
Embodiment 3
Potato decortication is cleaned with pure water, thickness gradient is then cut into and is the cylindrical piece of 2-10mm, then place it in
500ml is filled in the beaker of deionized water and is cleaned for several times；
The potato block of cleaned different gradients is placed in 12 hours of refrigerator cold-storage；
Potato block through having refrigerated is put into freeze drier and is freeze-dried 24 hours, and the shape to guarantee potato is not variable
Shape；
Finally the potato being freeze-dried is placed in vacuum crucible furnace and is carbonized,
700 DEG C of carburizing temperature are warming up to 10 DEG C/min of heating rate, is carbonized 8 hours at 700 DEG C.
After above four steps, the carbonization potato foam under different carburizing temperatures has been obtained.
Fig. 2 is that embodiment 1 is carbonized obtained carbonization potato foam at 600 DEG C under 200 times and 1000 times of amplification factors
SEM figure.It can be seen that carbonization potato foam is class honeycomb bobbles structure from Fig. 2 (a) and (b), there is a large amount of large aperture duct
Distribution, at the same time duct bobbles distribution abundant greatly improve water transport Movement Capabilities, this greatly enhances capillarity
Power.
Traditional carbon foam surface is hydrophobic, and the potato foam that is carbonized has super close different from traditional carbon foam
Water characteristic.Fig. 3 is embodiment 1 to be carbonized the water imbibition experimental result of obtained carbonization potato foam at 600 DEG C, can be with from Fig. 3
It is clearly visible 30ms water droplet and is carbonized potato foam absorbing completely.That is carbonization potato foam has excellent super hydrophilic spy
Property.
Fig. 4 be embodiment 1 600 DEG C be carbonized obtain carbonization potato foam absorption spectrum, it can be seen that its
Absorption up to 96.2%, fine to sun absorbing properties in 200nm-2500nm spectral region.
The measurement of the volatility of carbonization potato foam is by evaporation experiment come quantitative analysis.
What evaporation experiment was completed using the experimental provision under a simulated solar illumination environment, all data be all with
Ropy mode is then communicated on computer by electronic balance reading and is recorded.It is found by evaporation experiment, compared to fresh
Potato, carbonization potato foam have more than 1.5kg m-2h-1Evaporation rate, and deionized water and salt water are in the evaporation of natural lighting
Rate is very slow, and the evaporation efficiency of carbonization potato foam reaches 88.4% (Fig. 1 calculates gained).All evaporation experiment is 1
(Fig. 1) is carried out under a Intensity of the sunlight.
In conclusion carbonization potato foam have because of its this unique class honeycomb bobbles structure it is excellent it is super hydrophilic with
And the evaporation efficiency of superelevation, a kind of completely new biomass carbonization material is provided for the desalination technology of Driven by Solar Energy.This
Invention can not only reduce production cost and reduce complicated preparation process, but also the potato foam that is carbonized has good water transport
Performance and photothermal conversion performance, greatly improve the efficiency to desalinize seawater.
The carbonization potato foam that the present invention obtains can be used for efficient solar steam and generate.Firstly, comparing traditional gold
Category etc. is from elementary material, carbon-based material, semiconductor material, composite material etc., and being carbonized, potato foam fabrication process is simple, and price is low
It is honest and clean and may be implemented to be mass produced.In addition, the noble metal sunlight for the nanostructure that carbonization potato foam is reported before possessing
The high-absorbable energy with transition material is absorbed, is up to because carbonization potato foam absorbs in 200nm-2500nm spectral region
96.2%.In addition to this, as sun light absorption and optical-thermal conversion material, to the decisive indicator of material property quality evaluation
It is evaporation efficiency.Compared to carbonization mushroom, carbonization sugarcane, carbonization kelp, carbonization bamboo, the carbide wood head etc. mentioned in report before
Deng biomass carbonization material compare, carbonization potato foam evaporation efficiency greatly improve, under an Intensity of the sunlight, carbon
The evaporation efficiency for changing potato foam is up to 88.4%, higher than about the 87% of the biomass carbonization material that had been reported that before
Evaporation efficiency.
Claims (9)
1. a kind of preparation method of super hydrophilic carbonization potato foam, which is characterized in that potato is carbonized, obtains super hydrophilic carbonization soil
Beans foam.
2. the preparation method of super hydrophilic carbonization potato foam according to claim 1, which is characterized in that specifically include as follows
Step:
Step 1, potato decortication is cleaned；
Step 2, clean potato is refrigerated；
Step 3, the potato after refrigeration is freeze-dried；
Step 4, the potato after freeze-drying is carbonized.
3. the preparation method of super hydrophilic carbonization potato foam according to claim 2, which is characterized in that step 1 is specifically:
Potato decortication is cleaned, is then cut into the potato chips with a thickness of 2-10mm, then potato chips is cleaned up.
4. the preparation method of super hydrophilic carbonization potato foam according to claim 2, which is characterized in that in step 4, carbonization
Temperature is 400 DEG C -700 DEG C.
5. the preparation method of super hydrophilic carbonization potato foam according to claim 2, which is characterized in that in step 4, carbonization
Time is 6-8 hours.
6. the preparation method of super hydrophilic carbonization potato foam according to claim 2, which is characterized in that in step 4, carbonization
The preceding heating rate with (5 DEG C -10 DEG C)/min is warming up to carburizing temperature.
7. the super hydrophilic carbonization potato foam that preparation method described in any one of claims 1-6 is prepared.
8. super hydrophilic carbonization potato foam according to claim 7, which is characterized in that it is class honeycomb bobbles structure.
9. super hydrophilic carbonization potato foam according to any one of claims 8 is in the aborning application of solar steam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779994.4A CN110513668A (en) | 2019-08-22 | 2019-08-22 | A kind of super hydrophilic carbonization potato foam and preparation method thereof and in the aborning application of solar steam |
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| CN201910779994.4A CN110513668A (en) | 2019-08-22 | 2019-08-22 | A kind of super hydrophilic carbonization potato foam and preparation method thereof and in the aborning application of solar steam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115043388A (en) * | 2022-05-30 | 2022-09-13 | 陕西科技大学 | Porous Chinese yam carbon foam, preparation method and application thereof, and seawater evaporator |
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| CN101323808A (en) * | 2007-06-15 | 2008-12-17 | 西北工业大学 | Potato expansion starch carbonizing porous carbon ER fluid material |
| CN104445186A (en) * | 2013-09-13 | 2015-03-25 | 中国科学院兰州化学物理研究所 | Method for preparing mesoporous activated carbon |
| CN106698415A (en) * | 2016-12-29 | 2017-05-24 | 陈大明 | High-strength carbon foam (CF) material and preparation method thereof |
| CN107739066A (en) * | 2017-10-27 | 2018-02-27 | 成都新柯力化工科技有限公司 | It is a kind of to utilize the desalination of photothermal conversion function, the method for purifying sea water |
| CN109575886A (en) * | 2018-12-24 | 2019-04-05 | 电子科技大学 | A method of optical-thermal conversion material is prepared based on lotus leaf |
| CN110127696A (en) * | 2019-06-11 | 2019-08-16 | 吉林化工学院 | A kind of preparation method and applications of biomass-based nitrogen-doped porous carbon material |
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2019
- 2019-08-22 CN CN201910779994.4A patent/CN110513668A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323808A (en) * | 2007-06-15 | 2008-12-17 | 西北工业大学 | Potato expansion starch carbonizing porous carbon ER fluid material |
| CN104445186A (en) * | 2013-09-13 | 2015-03-25 | 中国科学院兰州化学物理研究所 | Method for preparing mesoporous activated carbon |
| CN106698415A (en) * | 2016-12-29 | 2017-05-24 | 陈大明 | High-strength carbon foam (CF) material and preparation method thereof |
| CN107739066A (en) * | 2017-10-27 | 2018-02-27 | 成都新柯力化工科技有限公司 | It is a kind of to utilize the desalination of photothermal conversion function, the method for purifying sea water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115043388A (en) * | 2022-05-30 | 2022-09-13 | 陕西科技大学 | Porous Chinese yam carbon foam, preparation method and application thereof, and seawater evaporator |
| CN115043388B (en) * | 2022-05-30 | 2024-01-16 | 陕西科技大学 | Porous Chinese yam carbon foam, preparation method and application thereof and seawater evaporator |
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Application publication date: 20191129 |
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