CN104056713A - Separation method for graphene-oxide nano material in soil - Google Patents
Separation method for graphene-oxide nano material in soil Download PDFInfo
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- CN104056713A CN104056713A CN201410263493.8A CN201410263493A CN104056713A CN 104056713 A CN104056713 A CN 104056713A CN 201410263493 A CN201410263493 A CN 201410263493A CN 104056713 A CN104056713 A CN 104056713A
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Abstract
The invention discloses a separation method for a graphene-oxide nano material in soil. The separation method comprises the following steps: (1) after drying a soil sample, sieving by 100 meshes to obtain soil powder; (2) adding ultrapure water into a container containing the soil powder, putting the container on a vortex oscillator, mixing uniformly for 15 minutes, and enabling water and the soil to be fully contacted to obtain a water-soil mixed liquid; (3) carrying out rotary oscillation on the water-soil mixed liquid on a swinging bed under room temperature with the rotating speed of the swinging bed being greater than or equal to 180r/min and the oscillation time being more than or equal to 4 hours, and enabling the graphene oxide to settle on the surface layer of the soil gradually; (4) using the ultrapure water to wash out the graphene oxide settled on the surface layer of the soil, carrying out suction filtration by a filtering membrane, freezing under the temperature of minus 50 DEG C, and drying to obtain the graphene oxide powder. The separation method disclosed by the invention has the advantages that the process is simple, the operation is easy, the method can be learned to separate other types of nano materials in the soil, and the benefit for studying the biochemical behavior of the nano materials in the soil environment can be achieved.
Description
Technical field
The present invention relates to nanometer technology and field of environment protection, specifically, be a kind of from soil the method for separation of oxygenated graphene nano material.
Background technology
Nano material has the characteristics such as absorption, catalysis, radiation and absorption, nano particle is due to its a large amount of micro-interfaces and microporosity, can strengthen various interfacial reactions, as counterweight metallic surface and obligate adsorption reaction etc., in the improvement of heavy metal pollution and persistency organic contaminant soil, will bring into play remarkable effect.
Graphene oxide has a large amount of oxygen-containing functional groups and huge surface area, and the organic and inorganic pollution in soil is had to very strong adsorption capacity, and its increasingly extensive application in contaminated soil is repaired has caused that each side more and more pays close attention to.In analyzing and characterizing soil, in the process of graphene oxide, the composition of soil matrix complexity, can form and disturb testing result.From soil, isolate graphene oxide, not only make the graphene oxide can circular regeneration, and analyze its biochemistry behavior in soil environment by contributing to, and analyze its mechanism of action in repairing polluted soil process.
Summary of the invention
The object of the invention is for current demand, the separation method of stannic oxide/graphene nano material in a kind of soil is provided.The method technique is simple, easy operating.
Technical scheme of the present invention:
A separation method for stannic oxide/graphene nano material in soil, step is as follows:
1) after pedotheque is dry, cross 100 mesh sieves, obtain soil powder;
2) in the container that above-mentioned soil powder is housed, add ultra-pure water, be then placed on vortex oscillator and mix 15min, water and soil is fully contacted, obtain water and soil mixed liquor;
3) by under above-mentioned water and soil mixed liquor room temperature on shaking table cyclotron oscillation, shaking speed >=180r/min, duration of oscillation >=4h, the graphene oxide that makes to be originally mixed in soil matrix is deposited in upper soll layer gradually;
4) the above-mentioned graphene oxide that is deposited in upper soll layer is washed out with ultra-pure water, through 0.22 μ m water system filter membrane suction filtration freeze drying at-50 ℃, can obtain graphene oxide powder.
Described ultrapure resistivity of water 15 ± 2.0 M Ω cm, the amount ratio of soil powder and ultra-pure water is 10g: 35mL.
Advantage of the present invention is: the method technique of this kind separation of oxygenated graphene nano material from soil is simple, easy operating, and can use for reference the nano material of other kinds in separated soil, contribute to the research of nano material biochemistry behavior in soil environment.
Accompanying drawing explanation
Fig. 1 is the separating effect photo of different cyclotron oscillations graphene oxide during the time under shaking speed 220r/min.
Fig. 2 is the separating effect photo of graphene oxide while distinguishing cyclotron oscillation 4h under different shaking speed, and wherein (a) is photo before cyclotron oscillation, (b) is photo after cyclotron oscillation.
Fig. 3 is the photo of isolated graphene oxide powder from soil.
Fig. 4 is the TEM test photo of isolated graphene oxide from soil, and the original TEM photo that wherein (a) is graphene oxide, (b) is isolated graphene oxide TEM photo in soil.
The specific embodiment
The pedotheque that following examples are used is the potting soil that is evenly mixed with 500ppm graphene oxide, and the soil that is mixed with graphene oxide is successively through overbalance 60 days and planting plants 90 days, during keep 70% of field capacity.
Embodiment 1:
A separation method for stannic oxide/graphene nano material in soil, step is as follows:
1) by after pedotheque freeze drying, cross 100 mesh sieves, obtain soil powder;
2) 10g soil powder is placed in to 50mL centrifuge tube, adds the ultra-pure water of 35mL resistivity 15 ± 2.0 M Ω cm, be then placed in and on vortex oscillator, mix 15min water and soil is fully contacted, obtain water and soil mixed liquor;
3) by under above-mentioned water and soil mixed liquor room temperature on 220r/min shaking table cyclotron oscillation 20h, the deposition conditions at upper soll layer at 0h, 2h, 4h, 6h, 8h, 10h and 20h Taking Pictures recording graphene oxide respectively therebetween, the graphene oxide that makes to be originally mixed in soil matrix is deposited in upper soll layer gradually, as shown in Figure 1, shaking table duration of oscillation surpasses after 4h, and graphene oxide tends towards stability at the deposit thickness of upper soll layer;
4) the above-mentioned graphene oxide that is deposited in upper soll layer is washed out with ultra-pure water, through 0.22 μ m water system filter membrane suction filtration freeze drying at-50 ℃, can obtain graphene oxide powder.
Fig. 3 is the photo of isolated graphene oxide powder from soil.
Fig. 4 is the TEM test photo of isolated graphene oxide from soil, and wherein (b) is isolated graphene oxide TEM photo in soil.Fig. 4 shows: from soil, successfully isolate graphene oxide, and graphene oxide reunites, thickness increases, and adsorbs simultaneously and has fixed some soil matrix compositions.
Embodiment 2:
A separation method for stannic oxide/graphene nano material in soil, step 1), 2), 4) identical with embodiment 1, difference is that step 3) is as follows:
3) by water and soil mixed liquor respectively 180,200, cyclotron oscillation 4h on 220r/min shaking table, make the graphene oxide in soil be deposited in upper soll layer, and Taking Pictures recording graphene oxide is in the deposition conditions of upper soll layer, as shown in Figure 2, wherein (a) is photo before cyclotron oscillation, (b) be photo after cyclotron oscillation, in figure, show: when shaking speed surpasses 200r/min, graphene oxide tends towards stability at the deposit thickness of upper soll layer.
Claims (2)
1. a separation method for stannic oxide/graphene nano material in soil, is characterized in that step is as follows:
1) after pedotheque is dry, cross 100 mesh sieves, obtain soil powder;
2) in the container that above-mentioned soil powder is housed, add ultra-pure water, be then placed on vortex oscillator and mix 15min, water and soil is fully contacted, obtain water and soil mixed liquor;
3) by under above-mentioned water and soil mixed liquor room temperature on shaking table cyclotron oscillation, shaking speed >=180r/min, duration of oscillation >=4h, the graphene oxide that makes to be originally mixed in soil matrix is deposited in upper soll layer gradually;
4) the above-mentioned graphene oxide that is deposited in upper soll layer is washed out with ultra-pure water, through 0.22 μ m water system filter membrane suction filtration freeze drying at-50 ℃, can obtain graphene oxide powder.
2. the separation method of stannic oxide/graphene nano material in soil according to claim 1, is characterized in that: described ultrapure resistivity of water 15 ± 2.0 M Ω cm, the amount ratio of soil powder and ultra-pure water is 10g: 35mL.
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| CN201410263493.8A CN104056713B (en) | 2014-06-13 | 2014-06-13 | The separation method of stannic oxide/graphene nano material in a kind of soil |
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| CN104056713A true CN104056713A (en) | 2014-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537255A (en) * | 2016-01-31 | 2016-05-04 | 苏州高通新材料科技有限公司 | Application of sulfonated graphene oxide in remediation of soil contaminated by polycyclic aromatic hydrocarbons |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090026086A1 (en) * | 2007-07-27 | 2009-01-29 | Aruna Zhamu | Electrochemical method of producing nano-scaled graphene platelets |
| CN102745683A (en) * | 2012-07-24 | 2012-10-24 | 南京理工大学 | Biological oxidation graphite and preparation method thereof |
| CN103408002A (en) * | 2013-07-29 | 2013-11-27 | 南京理工大学 | Microbial reduction of graphene oxide and preparation method for graphene |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090026086A1 (en) * | 2007-07-27 | 2009-01-29 | Aruna Zhamu | Electrochemical method of producing nano-scaled graphene platelets |
| CN102745683A (en) * | 2012-07-24 | 2012-10-24 | 南京理工大学 | Biological oxidation graphite and preparation method thereof |
| CN103408002A (en) * | 2013-07-29 | 2013-11-27 | 南京理工大学 | Microbial reduction of graphene oxide and preparation method for graphene |
Non-Patent Citations (2)
| Title |
|---|
| 同鑫: "石墨烯制备方法研究", 《现代商贸工业》 * |
| 张伟东等: "石墨烯的制备及其在电化学领域中的应用", 《船电技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537255A (en) * | 2016-01-31 | 2016-05-04 | 苏州高通新材料科技有限公司 | Application of sulfonated graphene oxide in remediation of soil contaminated by polycyclic aromatic hydrocarbons |
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