CN107185489A - The preparation method of the sorbing material of Atmospheric Organic Pollutants - Google Patents
The preparation method of the sorbing material of Atmospheric Organic Pollutants Download PDFInfo
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- CN107185489A CN107185489A CN201611254778.0A CN201611254778A CN107185489A CN 107185489 A CN107185489 A CN 107185489A CN 201611254778 A CN201611254778 A CN 201611254778A CN 107185489 A CN107185489 A CN 107185489A
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- graphene oxide
- activated carbon
- preparation
- oxide dispersion
- organic pollutants
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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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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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
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3204—Inorganic carriers, supports or substrates
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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
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
- B01J20/324—Inorganic material layers containing free carbon, e.g. activated carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to new material and field of Environment Protection, particularly a kind of preparation method of the sorbing material of Atmospheric Organic Pollutants comprises the following steps：Prepare graphene oxide dispersion；Reducing agent is added into graphene oxide dispersion, 2~5min is stirred；Activated carbon is immersed in graphene oxide dispersion, sealing；Mixture is warming up to 85~95 DEG C, 0.5~24h is kept, product is obtained after drying.The present invention can effectively prevent the absorption of steam using the hydrophobicity of graphene, while not influenceing absorption of the effective site of activated carbon to gaseous organic pollutant again, can significantly improve the adsorption effect of activated carbon.In addition, technique is simple, it is possible to achieve the large-scale production of low cost.
Description
Technical field
The present invention relates to new material and field of Environment Protection, particularly a kind of preparation of the sorbing material of Atmospheric Organic Pollutants
Method.
Background technology
With industrial expansion, substantial amounts of effumability organic pollution (VOC) is escaped in air, brings serious air
Pollution.For the VOC in air, the in the market conventional active charcoal of sorbing material or NACF, but they are all in the presence of easy
The shortcoming of water suction vapour, particularly coastal area high humidity, moisture absorption are more serious, and so effective adsorption space will be occupied and use
Just reduced in the space of absorption pollutant.Existing activated carbon contains substantial amounts of hydrophilic functional groups, and the original of this exactly its moisture absorption
Cause, but these functional groups are the effective adsorption site for adsorbing dusty gas again simultaneously, therefore can not be by removing doing for functional group
Method reduces hygroscopicity.A kind of novel absorption material so how is made to remove Atmospheric Organic Pollutants be a difficult point.
The content of the invention
It is an object of the present invention to overcome the above-mentioned technical problems, and to provide a kind of sorbing material of Atmospheric Organic Pollutants
Preparation method, the graphene of high-specific surface area strong-hydrophobicity is combined with activated carbon, so both can using graphene dredge
It is aqueous that steam is retained, and absorption of the hydrophilic functional groups in activated carbon to dusty gas is not influenceed, substantially increase suction
Attached effect, while preparation technology is economic and environment-friendly, it is easy to realize large-scale production.
The technical scheme for solving above-mentioned technical problem is as follows：
The preparation method of the sorbing material of Atmospheric Organic Pollutants, comprises the following steps：
(1) graphene oxide dispersion is prepared
By graphene oxide, ultrasonic disperse uniformly obtains graphene oxide dispersion in water；
(2) reduce
Reducing agent is added in the graphene oxide dispersion obtained to step (1), 2~5min is stirred；
(3) load type active carbon
Activated carbon is immersed in the graphene oxide dispersion described in step (2), sealing；
(4) dry
The mixture of step (3) is warming up to 85~95 DEG C, 0.5~24h is kept, product is obtained after drying.
Further, the concentration of the graphene oxide dispersion described in step (1) is 0.1mg/ml~5mg/ml.
Further, the reducing agent described in step (2) is hydrazine hydrate or vitamin C.
Further, the addition of described hydrazine hydrate is：Graphene oxide is 7 with the hydrazine mass ratio in hydrazine hydrate:1~
7:5。
Further, described ascorbic addition is：Vitamin C is 1 with graphene oxide mass ratio:1.
Further, the activated carbon described in step (3) is the activated carbon of commercially available all kinds.
The present invention compared with prior art, has the characteristics that：For the absorption of effumability organic pollution, in the market
Still activated carbon mainly, but there is serious water absorption issue during use, because existing activated carbon all contains
There are substantial amounts of hydrophilic functional groups, and these functional groups are the effective sites for adsorbing these gas pollutants, therefore can not be by it
Remove.The present invention is combined the graphene with hydrophobicity and extra specific surface area with activated carbon, can effectively be solved above
The problem of.The absorption of steam can be effectively prevented using the hydrophobicity of graphene, while not influenceing the effective site pair of activated carbon again
The absorption of gaseous organic pollutant, can significantly improve the adsorption effect of activated carbon.In addition, technique is simple, it is possible to achieve it is low into
This large-scale production.
The method of the present invention adsorbs the shortcoming of steam while overcoming existing charcoal absorption pollutant, substantially increase
Adsorption effect.The combination of graphene and activated carbon, had both played barrier of the graphene hydrophobicity to steam, activated carbon has been played again
The advantage of many adsorption sites of high-specific surface area.The strong bonded of graphene and activated carbon is very crucial, and the present invention is gone back by original position
The method of former self assembly, has been prepared with reference to firm graphene-absorbent charcoal composite material.The composite of preparation can both hinder
The absorption of dash vapour again can be with strong absorption dusty gas.The introducing of graphene will not only reduce the ratio surface of activated carbon
Product, the raising for having 10% to it on the contrary.The composite has huge prospect in gas purification.
Embodiment
With reference to embodiment, the present invention is further detailed explanation.
Embodiment 1：
The preparation method of the sorbing material of Atmospheric Organic Pollutants, comprises the following steps：
By 50g graphene oxides, ultrasonic disperse uniformly obtains graphene oxide dispersion in water；Control graphene oxide
The concentration of dispersion liquid is 0.1mg/ml, and the hydrazine hydrate of the hydrazine containing 7g is added into graphene oxide dispersion, stirs 2min；By 50g
In activated carbon immersion graphene oxide dispersion, sealing；Mixture is warming up to 85 DEG C, 24h is kept, product is obtained after drying.Its
In, activated carbon is the activated carbon of commercially available any kind.
Embodiment 2
The preparation method of the sorbing material of Atmospheric Organic Pollutants, comprises the following steps：
By 100g graphene oxides, ultrasonic disperse uniformly obtains graphene oxide dispersion in water；Control graphene oxide
The concentration of dispersion liquid is 5mg/ml, and 100g vitamin Cs are added into graphene oxide dispersion, stirs 5min；By 50g activated carbons
Immerse in graphene oxide dispersion, sealing；Mixture is warming up to 95 DEG C, 0.5h is kept, product is obtained after drying.Wherein, it is living
Property charcoal be commercially available any kind activated carbon.
Embodiment 3
The preparation method of the sorbing material of Atmospheric Organic Pollutants, comprises the following steps：
By 100g graphene oxides, ultrasonic disperse uniformly obtains graphene oxide dispersion in water；Control graphene oxide
The concentration of dispersion liquid is 2mg/ml, and 100g vitamin Cs are added into graphene oxide dispersion, stirs 3min；By 50g activated carbons
Immerse in graphene oxide dispersion, sealing；Mixture is warming up to 90 DEG C, 12h is kept, product is obtained after drying.Wherein, it is active
Charcoal is the activated carbon of commercially available any kind.
Embodiment 4
The preparation method of the sorbing material of Atmospheric Organic Pollutants, comprises the following steps：
By 70g graphene oxides, ultrasonic disperse uniformly obtains graphene oxide dispersion in water；Control graphene oxide
The concentration of dispersion liquid is 1mg/ml, and the hydrazine hydrate of the hydrazine containing 50g is added into graphene oxide dispersion, stirs 2min；50g is lived
Property charcoal immersion graphene oxide dispersion in, sealing；Mixture is warming up to 92 DEG C, 20h is kept, product is obtained after drying.Wherein,
Activated carbon is the activated carbon of commercially available any kind.
Embodiment 5
The preparation method of the sorbing material of Atmospheric Organic Pollutants, comprises the following steps：
By 70g graphene oxides, ultrasonic disperse uniformly obtains graphene oxide dispersion in water；Control graphene oxide
The concentration of dispersion liquid is 4.5mg/ml, and the hydrazine hydrate of the hydrazine containing 30g is added into graphene oxide dispersion, stirs 4min；By 50g
In activated carbon immersion graphene oxide dispersion, sealing；Mixture is warming up to 91 DEG C, 16h is kept, product is obtained after drying.Its
In, activated carbon is the activated carbon of commercially available any kind.
The method of the present invention adsorbs the shortcoming of steam while overcoming existing charcoal absorption pollutant, substantially increase
Adsorption effect.The combination of graphene and activated carbon, had both played barrier of the graphene hydrophobicity to steam, activated carbon has been played again
The advantage of many adsorption sites of high-specific surface area.The strong bonded of graphene and activated carbon is very crucial, and the present invention is gone back by original position
The method of former self assembly, has been prepared with reference to firm graphene-absorbent charcoal composite material.The composite of preparation can both hinder
The absorption of dash vapour again can be with strong absorption dusty gas.The introducing of graphene will not only reduce the ratio surface of activated carbon
Product, the raising for having 10% to it on the contrary.The composite has huge prospect in gas purification.
It is described above, be only presently preferred embodiments of the present invention, any formal limitation not done to the present invention, it is every according to
According to any simple modification, equivalent variations made in technical spirit of the invention to above example, the guarantor of the present invention is each fallen within
Within the scope of shield.
Claims (6)
1. the preparation method of the sorbing material of Atmospheric Organic Pollutants, it is characterised in that comprise the following steps：
(1) graphene oxide dispersion is prepared
By graphene oxide, ultrasonic disperse uniformly obtains graphene oxide dispersion in water；
(2) reduce
Reducing agent is added in the graphene oxide dispersion obtained to step (1), 2~5min is stirred；
(3) load type active carbon
Activated carbon is immersed in the graphene oxide dispersion described in step (2), sealing；
(4) dry
The mixture of step (3) is warming up to 85~95 DEG C, 0.5~24h is kept, product is obtained after drying.
2. the preparation method of the sorbing material of Atmospheric Organic Pollutants according to claim 1, it is characterised in that step
(1) concentration of the graphene oxide dispersion described in is 0.1mg/ml~5mg/ml.
3. the preparation method of the sorbing material of Atmospheric Organic Pollutants according to claim 1, it is characterised in that step
(2) reducing agent described in is hydrazine hydrate or vitamin C.
4. the preparation method of the sorbing material of Atmospheric Organic Pollutants according to claim 3, it is characterised in that described
The addition of hydrazine hydrate be：Graphene oxide is 7 with the hydrazine mass ratio in hydrazine hydrate:1~7:5.
5. the preparation method of the sorbing material of Atmospheric Organic Pollutants according to claim 3, it is characterised in that described
Ascorbic addition be：Vitamin C is 1 with graphene oxide mass ratio:1.
6. the preparation method of the sorbing material of Atmospheric Organic Pollutants according to claim 1, it is characterised in that step
(3) activated carbon described in is the activated carbon of commercially available all kinds.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704389A (en) * | 2018-05-30 | 2018-10-26 | 南通强生石墨烯科技有限公司 | A kind of graphene modified activated carbon composite filter element and its preparation method and application |
| CN108786729A (en) * | 2018-06-06 | 2018-11-13 | 张小伏 | The preparation method of mask graphene/active carbon in-situ plural gel adsorbent |
| CN109455715A (en) * | 2018-11-14 | 2019-03-12 | 中山火炬职业技术学院 | Preparation method of graphene modified hydrophobic activated carbon |
| CN109663564A (en) * | 2017-10-16 | 2019-04-23 | 山东欧铂新材料有限公司 | A kind of gas adsorption material and preparation method thereof |
| CN110127697A (en) * | 2019-05-23 | 2019-08-16 | 东南大学 | A method of can be prepared on a large scale modified activated carbon |
| CN110420623A (en) * | 2019-08-05 | 2019-11-08 | 山西工程技术学院 | A kind of compound porous adsorbent material of vermiculite base graphene and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109663564A (en) * | 2017-10-16 | 2019-04-23 | 山东欧铂新材料有限公司 | A kind of gas adsorption material and preparation method thereof |
| CN108704389A (en) * | 2018-05-30 | 2018-10-26 | 南通强生石墨烯科技有限公司 | A kind of graphene modified activated carbon composite filter element and its preparation method and application |
| CN108786729A (en) * | 2018-06-06 | 2018-11-13 | 张小伏 | The preparation method of mask graphene/active carbon in-situ plural gel adsorbent |
| CN109455715A (en) * | 2018-11-14 | 2019-03-12 | 中山火炬职业技术学院 | Preparation method of graphene modified hydrophobic activated carbon |
| CN110127697A (en) * | 2019-05-23 | 2019-08-16 | 东南大学 | A method of can be prepared on a large scale modified activated carbon |
| CN110127697B (en) * | 2019-05-23 | 2022-10-14 | 东南大学 | Method for preparing modified activated carbon in large scale |
| CN110420623A (en) * | 2019-08-05 | 2019-11-08 | 山西工程技术学院 | A kind of compound porous adsorbent material of vermiculite base graphene and preparation method thereof |
| CN110420623B (en) * | 2019-08-05 | 2022-05-17 | 山西工程技术学院 | Vermiculite-based graphene composite porous adsorption material and preparation method thereof |
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Application publication date: 20170922 |