CN108545797A - A kind of flexible composite and preparation method thereof for sea water desalination - Google Patents
A kind of flexible composite and preparation method thereof for sea water desalination Download PDFInfo
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- CN108545797A CN108545797A CN201810319162.XA CN201810319162A CN108545797A CN 108545797 A CN108545797 A CN 108545797A CN 201810319162 A CN201810319162 A CN 201810319162A CN 108545797 A CN108545797 A CN 108545797A
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- CN
- China
- Prior art keywords
- sea water
- tungsten oxide
- flexible composite
- water desalination
- oxide nanometer
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Classifications
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- 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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- 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
Abstract
A kind of flexible composite and preparation method thereof for sea water desalination of the present invention, belongs to the technical field of inorganic material preparation process.The flexible composite for sea water desalination, be using the melamine sponge of carbonization as supporter, sponge internal load tungsten oxide nanometer material constitute.By tungsten oxide nanometer material ultrasonic disperse in deionized water; one piece of melamine sponge is added; utilize its porous structure and superpower water absorbing properties; inside its duct of the aqueous dispersions inspiration of tungsten oxide nanometer material; then; the melamine sponge for having adsorbed tungsten oxide nanometer material is subjected to high temperature cabonization under the conditions of nitrogen protection, obtains the flexible composite for sea water desalination.The method preparation process of the present invention is simple, and reaction raw materials are cheap and easy to get, and the structure of raw material is dexterously utilized to prepare the flexible composite with practical application with performance.Prepared composite material can be used for sea water desalination, and Repeatability is stablized.
Description
Technical field
The invention belongs to the technical field of inorganic material preparation process, more particularly to a kind of flexibility for sea water desalination is multiple
Condensation material and preparation method thereof.
Background technology
Currently, shortage of fresh water is one of the most pressing challenge in the whole world (Science, 2011,333,712-717).And
The two big conventional means for solving shortage of water resources are exactly to utilize reverse osmosis technology and desalination with Solar Energy (Nature
nanotechnology,2015,10,459–464；Nature Photonics,2016,10,393-398).Since solar energy is
The utilizable most abundant energy of the mankind, thus with using reverse osmosis technology carry out sea water desalination compared with, using solar energy into
Row sea water desalination has many merits, if do not consumed conventional energy resource, pollution-free, gained fresh water purity height etc..In recent years, strong extinction
Material such as graphene, gold nanoparticle and amorphous carbon etc. have pushed the development (Chemistry of desalination with Solar Energy
of Materials,2017,29,5629–5635；Advanced materials,2015,27,2768–2774；ACS
applied materials&interfaces,2017,9,15052-15057).However, how to reduce material cost and
The problems such as preventing material property from declining, remains unsolved.For example, the metal nanoparticle with plasma resonance effect is very expensive
And prolonged use can cause to fall off in water, can undoubtedly increase the use cost of sea water desalination composite material and reduce its
Service life.Therefore, in recent years, the material of R ＆ D design low cost, which is applied to sea water desalination, becomes numerous researcher institutes
The target of pursuit.Currently, researcher has been designed that a variety of composite materials that can improve sea water desalination efficiency both at home and abroad：
Wooden unit/stripping graphene double-layer structure (ACS applied materials＆interfaces, 2017,9,7675-7681), carbon
Nanotube/polystyrene foam (Nano Energy, 2017,41,201-209), graphite oxide alkenyl aeroge etc.
(Advanced materials,2016,28,9400-9407).But the preparation of these light absorbents comparatively laborious complexity mostly,
Reaction condition is difficult to controllable precise, and which limits their large-scale production.The present invention provides a kind of melamine of low cost
Tungsten oxide nanometer material and its compound one kind of preparing can be used in seawater by amine sponge under a nitrogen atmosphere as basis material
The flexible composite of desalination, manufacturing cost is relatively low, and preparation method is simple.
Invention content
The technical problem to be solved in the present invention is to provide a kind of flexible composite for sea water desalination and its preparation sides
Method, the method provided be by tungsten oxide nanometer material ultrasonic disperse in deionized water, utilize the porous of melamine sponge
Structure and strong absorptive are by its duct of the aqueous dispersions inspiration of tungsten oxide nanometer material, last pyrocarbon under nitrogen protection
Change can prepare the composite material that can be floated in water, and solving melamine sponge sucks in water can also carry while subsidence problems
The high water evaporation efficiency of the composite material.
Specific technical solution is as follows：
A kind of flexible composite for sea water desalination is using the melamine sponge of carbonization as supporter, sponge
What internal load tungsten oxide nanometer material was constituted.
The tungsten oxide nanometer material, preferably tungsten oxide nano.
The preparation method of a kind of flexible composite for sea water desalination, by tungsten oxide nanometer material ultrasonic disperse in going
In ionized water, then melamine sponge is added, will inhale inside its duct of the aqueous dispersions inspiration of tungsten oxide nanometer material
The melamine sponge of attached tungsten oxide nanometer material carries out high temperature cabonization under the conditions of nitrogen protection, obtains being used for sea water desalination
Flexible composite.
In a kind of method of above-mentioned flexible composite preparing sea water desalination, the high temperature cabonization preferably exists
400-600 DEG C of progress；Carbonization time preferably 2 hours or more.
It is described by tungsten oxide nanometer material in a kind of method of above-mentioned flexible composite preparing sea water desalination
Ultrasonic disperse is in deionized water, the obtained preferred 5mg/mL of dispersion liquid concentration.
Advantageous effect：
The method preparation process of the present invention is simple, and reaction raw materials are cheap and easy to get, dexterously utilizes the structure and property of raw material
The flexible composite with practical application can be prepared.Prepared composite material can be used for sea water desalination, and Repeatability is stablized.
Description of the drawings
Fig. 1 is the photomacrograph of the composite material prepared by embodiment 1.
Fig. 2 is the photomacrograph of the composite material prepared by embodiment 2.
Fig. 3 is the photomacrograph of the composite material prepared by embodiment 3.
Fig. 4 is the photomacrograph of the composite material prepared by embodiment 4.
Fig. 5 is the UV, visible light near-infrared absorption spectrum figure of the composite material prepared by embodiment 1.
Fig. 6 is the water evaporation design sketch of tungsten oxide/carbon sponge prepared by embodiment 1.
Fig. 7 is that the cycle performance of the composite material prepared by embodiment 1 tests design sketch.
Fig. 8 is the anti-deformation nature test process figure of the composite material prepared by embodiment 1.
Specific implementation mode
Embodiment 1
By freshly prepd 50mg tungsten oxide nanos ultrasonic disperse in 10mL deionized waters, it is then placed in block-like trimerization
Cyanamide sponge, will be in its duct of the aqueous dispersions inspiration of tungsten oxide nanometer material using its more empty characteristics and strong absorptive
Portion puts the melamine sponge for absorbing tungsten oxide nanometer material into Muffle furnace, and 500 DEG C of carbonizations 2 are small under the conditions of nitrogen protection
When.Can be prepared by water can be from flexible composite floating, using sunlight progress sea water desalination.
Embodiment 2
By freshly prepd 50mg tungsten oxide nanos ultrasonic disperse in 10mL deionized waters, it is then placed in block-like trimerization
Cyanamide sponge, will be in its duct of the aqueous dispersions inspiration of tungsten oxide nanometer material using its more empty characteristics and strong absorptive
Portion puts the melamine sponge for absorbing tungsten oxide nanometer material into Muffle furnace, and 400 DEG C of carbonizations 2 are small under the conditions of nitrogen protection
When.Can be prepared by water can be from flexible composite floating, using sunlight progress sea water desalination.If (temperature
It is relatively low, such as 300 DEG C, then melamine sponge cannot be carbonized)
Embodiment 3
By freshly prepd 50mg tungsten oxide nanos ultrasonic disperse in 10mL deionized waters, it is then placed in block-like trimerization
Cyanamide sponge, will be in its duct of the aqueous dispersions inspiration of tungsten oxide nanometer material using its more empty characteristics and strong absorptive
Portion puts the melamine sponge for absorbing tungsten oxide nanometer material into Muffle furnace, and 600 DEG C of carbonizations 2 are small under the conditions of nitrogen protection
When.Can be prepared by water can be from flexible composite floating, using sunlight progress sea water desalination.If (temperature
Higher, when more than 600 DEG C, the composite material being carbonized does not have good flexibility, it will greatly limits answering extensively for it
With)
Embodiment 4
By freshly prepd 50mg tungsten oxide nanos ultrasonic disperse in 10mL deionized waters, it is then placed in block-like trimerization
Cyanamide sponge, will be in its duct of the aqueous dispersions inspiration of tungsten oxide nanometer material using its more empty characteristics and strong absorptive
Portion puts the melamine sponge for absorbing tungsten oxide nanometer material into Muffle furnace, and 500 DEG C of carbonizations 4 are small under the conditions of nitrogen protection
When.Can be prepared by water can be from flexible composite floating, using sunlight progress sea water desalination.
Embodiment 5
Flexible composite prepared in embodiment 1 is tested applied to sea water desalination, detailed process is as follows：This is soft
Property composite material is placed in the beaker equipped with 100mL deionized waters, and beaker is placed on Sai Duolisi electronic balances, uses power
For 2kW/cm2Simulated solar irradiation (xenon lamp) be irradiated, each minute read from balance one read and record.Reactant
It is quality versus time curve as shown in fig. 6, as a comparison, in Fig. 6 also while matter when depicting the evaporation of full sea water
Measure change curve and the mass-change curve in the evaporation of seawater under carbon sponge acts on.It can be seen from the figure that embodiment 1
The tungsten oxide/carbon sponge of preparation has the effect of extraordinary promotion evaporation of seawater.
Embodiment 6
The experimentation of embodiment 5 is repeated 10 times, and records each time experiment seawer quality rate of change, such as Fig. 7 institutes
Showing, it can be seen that sample prepared by the present invention promotes the speed of evaporation of seawater to keep stable during repeating 10 times uses,
Illustrate that sample prepared by the present invention can be recycled, and performance is stablized.
Embodiment 7
The test of anti-deformation nature is carried out to the flexible composite prepared by embodiment 1.Detailed process is as shown in Figure 8：
Applying an external bending stress to the composite material can deform upon, after removing external force, composite material horse back energy
It is restored to original shape, showing composite material prepared by the present invention has good anti-deformation nature.
Claims (4)
1. a kind of flexible composite for sea water desalination is using the melamine sponge of carbonization as supporter, in sponge
What section load tungsten oxide nanometer material was constituted.
2. a kind of preparation method of the flexible composite for sea water desalination of claim 1, tungsten oxide nanometer material is surpassed
Sound is scattered in deionized water, and melamine sponge is added, inside its duct of the aqueous dispersions inspiration of tungsten oxide nanometer material,
Then, the melamine sponge for having adsorbed tungsten oxide nanometer material under the conditions of nitrogen protection is subjected to high temperature cabonization, is used
In the flexible composite of sea water desalination.
3. a kind of preparation method of flexible composite for sea water desalination according to claim 2, which is characterized in that
The high temperature cabonization is carried out at 400-600 DEG C；Carbonization time is 2 hours or more.
4. a kind of preparation method of flexible composite for sea water desalination according to claim 2 or 3, feature exist
In by tungsten oxide nanometer material ultrasonic disperse, obtained dispersion liquid concentration is 5mg/mL in deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810319162.XA CN108545797B (en) | 2018-04-11 | 2018-04-11 | Flexible composite material for seawater desalination and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810319162.XA CN108545797B (en) | 2018-04-11 | 2018-04-11 | Flexible composite material for seawater desalination and preparation method thereof |
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| CN108545797A true CN108545797A (en) | 2018-09-18 |
| CN108545797B CN108545797B (en) | 2021-05-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110105917A (en) * | 2019-04-28 | 2019-08-09 | 深圳大学 | A kind of photothermal composite material and the preparation method and application thereof |
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| CN110105917A (en) * | 2019-04-28 | 2019-08-09 | 深圳大学 | A kind of photothermal composite material and the preparation method and application thereof |
| CN110105917B (en) * | 2019-04-28 | 2022-05-10 | 深圳大学 | Photo-thermal composite material and preparation method and application thereof |
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| CN108545797B (en) | 2021-05-07 |
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