CN107285314A - A kind of activated carbon and preparation method thereof - Google Patents
A kind of activated carbon and preparation method thereof Download PDFInfo
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- CN107285314A CN107285314A CN201710693692.6A CN201710693692A CN107285314A CN 107285314 A CN107285314 A CN 107285314A CN 201710693692 A CN201710693692 A CN 201710693692A CN 107285314 A CN107285314 A CN 107285314A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
- C01P2006/17—Pore diameter distribution
Abstract
A kind of activated carbon and preparation method thereof, is related to technical field of active carbon.This method is carried out after once activating by using activator to Chinese medicine dreg, and continuation carries out constant temperature re-activation and post processing to it so that prepared activated carbon possesses preferably adsorption capacity；The raw material sources of the activated carbon are extensive, and cheap.Therefore; activated carbon that the present invention is provided and preparation method thereof; possess the advantage that technique is simple and preparation efficiency is high, raw material is sufficient and cheap on the whole, and these advantages are conducive to effective recycling of environmental protection and resource, therefore it possesses larger application value.
Description
Technical field
The present invention relates to technical field of active carbon, in particular to a kind of activated carbon and preparation method thereof.
Background technology
Even to this day, the activated carbon of preparation can about be divided into ature of coal and wooden two major class.But current the World Forests
Total resources is constantly gliding always, can cut down the forest reserves utilized and also constantly decline.Also, our countries are
The country that one forest reserves lacks very much, the waste material that the activated carbon of preparation can only typically be processed by forestry, but because have
The substantial amounts of consumption forest reserves in area, cause forest to be destroyed, cause the loss of serious water and soil, or even flooding of rivers, institute
Also it is worthless to be processed with to rely only on woods, and reasonable employment resource how, and eliminate environmental pollution turns into every country section
The important task that worker faces.
Activated carbon is because its internal pore structure is flourishing, and with very significant adsorption capacity, is widely used in China
All trades and professions, but the processing of current activated carbon is influenceed by raw material sources and cost, causes its development to receive certain
Limitation.
The content of the invention
It is an object of the invention to provide a kind of activated carbon, its raw material yield is big, source is wide, price is low, and product has
There is preferably adsorption capacity.
Another object of the present invention is to provide a kind of method for preparation of active carbon, it can be to greatest extent by activated carbon
It is above-mentioned activated carbon that raw material conversion, which is in, and the activated carbon prepared possesses above-mentioned advantage.
The present invention, which solves its technical problem, to be realized using following technical scheme.
The present invention proposes a kind of preparation method of activated carbon, and it comprises the following steps：
Chinese medicine dreg is mixed with activator solution, and carries out sealing and standing and drying successively, the first activation is obtained
Product；First activation products are heated successively and constant temperature activation, obtain the second activation products；Second activation products are carried out
Post processing.
The present invention also proposes a kind of activated carbon, and it is made by the preparation method of above-mentioned activated carbon.
The beneficial effect of the activated carbon of the embodiment of the present invention and preparation method thereof is：By using activator to Chinese medicine dreg
Carry out after once activating, continuation carries out constant temperature re-activation and post processing to it so that prepared activated carbon possesses preferably
Adsorption capacity is, it is necessary to explanation, activated carbon preparing raw material wide material sources provided in an embodiment of the present invention, and cheap,
Industry has larger promotional value using upper, in addition, the preparation method of above-mentioned activated carbon is also equipped with preparation technology simply, prepares
The advantage of efficiency high.Therefore, activated carbon that above-described embodiment is provided and preparation method thereof, possesses technique simply and prepares on the whole
The sufficient and cheap advantage of efficiency high, raw material, these are conducive to effective recycling of environmental protection and resource, therefore it has
Standby larger application value.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
The N for the peppermint dregs of a decoction matrix activated carbon that Fig. 1 provides for test example of the present invention2Adsorption/desorption isotherms figure；
The DFT pore size distribution figures for the peppermint dregs of a decoction matrix activated carbon that Fig. 2 provides for test example of the present invention；
The N for the schizonepeta dregs of a decoction matrix activated carbon that Fig. 3 provides for test example of the present invention2Adsorption/desorption isotherms figure；
The DFT pore size distribution figures for the schizonepeta dregs of a decoction matrix activated carbon that Fig. 4 provides for test example of the present invention；
The N for the Herba Andrographitis dregs of a decoction matrix activated carbon that Fig. 5 provides for test example of the present invention2Adsorption/desorption isotherms figure；
The DFT pore size distribution figures for the Herba Andrographitis dregs of a decoction matrix activated carbon that Fig. 6 provides for test example of the present invention；
The N for the capsule of weeping forsythia dregs of a decoction matrix activated carbon that Fig. 7 provides for test example of the present invention2Adsorption/desorption isotherms figure；
The DFT pore size distribution figures for the capsule of weeping forsythia dregs of a decoction matrix activated carbon that Fig. 8 provides for test example of the present invention；
The N for the mixing dregs of a decoction matrix activated carbon that Fig. 9 provides for test example of the present invention2Adsorption/desorption isotherms figure；
The DFT pore size distribution figures for the mixing dregs of a decoction matrix activated carbon that Figure 10 provides for test example of the present invention.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, are the conventional production that can be obtained by commercially available purchase
Product.
Activated carbon of the embodiment of the present invention and preparation method thereof is specifically described below.
A kind of preparation method of activated carbon provided in an embodiment of the present invention, it is mainly prepared using waste gas material as raw material
Activated carbon.
Specifically, the preparation method of activated carbon provided in an embodiment of the present invention, comprises the following steps：
S1, Chinese medicine dreg mixed with activator solution, and carry out sealing and standing and drying successively, obtain the first work
Change product.
Further, among the embodiment of the present invention, Chinese medicine dreg used be the peppermint dregs of a decoction, the schizonepeta dregs of a decoction, the Herba Andrographitis dregs of a decoction,
At least one of the capsule of weeping forsythia dregs of a decoction, the fruit of glossy privet dregs of a decoction, the Chinese ephedra dregs of a decoction, the field Hu dregs of a decoction, astragalus root dregs and motherwort dregs of a decoction, and it is excellent
Selection of land, from least one of the peppermint dregs of a decoction, the schizonepeta dregs of a decoction, the Herba Andrographitis dregs of a decoction and capsule of weeping forsythia dregs of a decoction.It should be noted that this hair
The activated carbon raw material that bright embodiment is selected are Chinese medicine dreg, and its wide material sources is cheap, excellent with apparent cost performance
Gesture, not only helps its popularization, and also contribute to the recycling of environmental protection and resource.
Further, among the embodiment of the present invention, activator solution used is liquor zinci chloridi, solution of potassium carbonate or phosphoric acid
Any one in solution.Liquor zinci chloridi is preferably used, and be emphasized that using activator solution to Chinese medicines
Slag carries out activation process, and it is mainly the moisture and oil content removed inside Chinese medicine dreg, and the carbon component for enabling it internal is sent out
Raw polycondensation restructuring, and then form microcellular structure.
Further, on Chinese medicine dreg and the mixed proportion consumption of activator, the present embodiment is also defined, and it is limited
It is set to the activator 5-25mL that every 1g Chinese medicine dregs concentration is 0.05-3mol/L.It should be noted that why to Chinese medicine
The amount ratio of the dregs of a decoction and activator is defined, and is, because the consumption of its activator is excessive or very few, to be unfavorable for its activation and make
Effective realization, activator level is very few, it is impossible to play activation well, weakens effect of activator, activation
Agent consumption is excessive, and the microcellular structure of Chinese medicine dreg can be caused to become big, so that the specific surface area of the important dregs of a decoction is reduced, thus it is also unfavorable
The movable charcoal of high adsorption capacity is made in its Chinese medicine dreg.
Further, in order to be that Chinese medicine dreg and activator create optimal activation condition, the present embodiment is being sealed
Time during standing is defined to 23-25h, it is therefore preferable to 24h；Temperature when being dried is 79-81 DEG C, and the time is 23-
25h, and the moisture content of the first activation products is less than 15% after drying, wherein, temperature is preferably 80 DEG C when drying, and the time is
24h。
S2, the first activation products are heated successively and constant temperature activation, obtain the second activation products.
Further, in the embodiment of the present invention, when being heated to the first activation products, atmosphere protection has also been carried out, preferably
Protected using nitrogen, in order to which the first activation products have a good clean space environment, in addition also for energy
It is enough not oxidized in heating process, so as to be conducive to its ensuing re-activation.
Further, the heat temperature raising speed before secondary constant temperature activation is 10 DEG C/min, and why to heat temperature raising
Speed has a relatively stable limitation, is because the programming rate of its reasonably stability is conducive to an activation products institutional framework
Stable progress changes, and irreversible influence is caused on it without that should overheat or be subcooled, this is also helped to ensure that finally
The quality of activated carbon.
Further, during carrying out constant temperature activation to the first activation products, activation temperature is controlled at 400-700 DEG C,
Soak time is controlled in 0.5-4h.It should be noted that during re-activation, for activation temperature and the limit of soak time
System, can cause the moisture that contains in the first activation products and oil content and various impurity further to remove, in addition, it is internal
Carbon component restructuring also can further be deepened, and microcellular structure can be more.Therefore after second activates, its second activation products will
With better pore structure, its quality is able to further be lifted.
S3, the second activation products are post-processed.
Further, activated carbon is can obtain after being post-processed to the second activation products.It should be noted that to second
The process that activation products are post-processed includes room temperature cooling, pickling, washing and dried successively.Wherein, acid cleaning process is：Use
After 3mol/L HCL solution immersion 30min, then carry out suction filtration；The distilled water washed including the use of 70-80 DEG C is carried out repeatedly repeatedly
Cleaning, until the pH of product is in neutral range；Dry condition is 110 DEG C of temperature, and room temperature is cooled down after drying.
The embodiment of the present invention additionally provides a kind of activated carbon, and it is made by the preparation method of above-mentioned activated carbon.Need
It is bright, activated carbon provided in an embodiment of the present invention, its raw material yield is big, source is wide, price is low, and it, which has, preferably adsorbs
Ability, therefore it enriches current activated carbon commodity market, is conducive to energy-conservation and environmental protection, promotes the development of recycling economy, has
Important application value.
The feature and performance to the present invention are described in further detail with reference to embodiments.
Embodiment 1
The preparation method for the activated carbon that the present embodiment is provided, comprises the following steps：
Weigh 1g peppermint dregs of a decoction raw material to be put into small beaker, measure 3mol/L chemical activating agent ZnCl2Solution 25mL
It is sufficiently mixed with the peppermint dregs of a decoction in small beaker, Chinese medicine dreg is uniformly dispersed, the preservative film on beaker mouth mask
Protection, is placed among room temperature and stands 24h.
Preservative film is removed, the Chinese medicine dreg being standing and soak for is put among electric drying oven with forced convection, by temperature setting
For 80 DEG C of heating 24h, moisture therein is dried, the moisture content of the dregs of a decoction is less than 15%.
Dried Chinese medicine dreg is put into the tube furnace full of nitrogen, since room temperature, gradually with 10 DEG C/min's
Speed raises temperature, up to 400 DEG C, then constant temperature activation 4h.
The product activated is taken out from tube furnace, room temperature is cooled to, with 3mol/L HCL solution pickling, and soaked
Steep after 30min, suction filtration is carried out to product, with 80 DEG C of distilled water cyclic washing product, until the pH value of resulting product exists
In neutral range.
Neutral product is put into electric drying oven with forced convection, after being dried with 110 DEG C of temperature, room temperature is taken out cold
But.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Embodiment 2
The preparation method for the activated carbon that the present embodiment is provided, the preparation method of its activated carbon provided with embodiment 1 is substantially
Identical, difference is, in the preparation method for the activated carbon that the present embodiment is provided, and Chinese medicine dreg used is the schizonepeta dregs of a decoction.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Embodiment 3
The preparation method for the activated carbon that the present embodiment is provided, the preparation method of its activated carbon provided with embodiment 1 is substantially
Identical, difference is, in the preparation method for the activated carbon that the present embodiment is provided, and Chinese medicine dreg used is the Herba Andrographitis dregs of a decoction.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Embodiment 4
The preparation method for the activated carbon that the present embodiment is provided, the preparation method of its activated carbon provided with embodiment 1 is substantially
Identical, difference is, in the preparation method for the activated carbon that the present embodiment is provided, and Chinese medicine dreg used is the capsule of weeping forsythia dregs of a decoction.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Embodiment 5
The preparation method for the activated carbon that the present embodiment is provided, the preparation method of its activated carbon provided with embodiment 1 is substantially
Identical, difference is, in the preparation method for the activated carbon that the present embodiment is provided, and Chinese medicine dreg used is the capsule of weeping forsythia dregs of a decoction, worn
The mixing dregs of a decoction that the heart lotus dregs of a decoction, the schizonepeta dregs of a decoction and the peppermint dregs of a decoction are constituted.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Embodiment 6
The preparation method for the activated carbon that the present embodiment is provided, the preparation method of its activated carbon provided with embodiment 1 is substantially
Identical, difference is, in the preparation method for the activated carbon that the present embodiment is provided, and Chinese medicine dreg used is the fruit of glossy privet dregs of a decoction.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Embodiment 7
The preparation method for the activated carbon that the present embodiment is provided, the preparation method of its activated carbon provided with embodiment 1 is substantially
Identical, difference is, in the preparation method for the activated carbon that the present embodiment is provided, and Chinese medicine dreg used is the Chinese ephedra dregs of a decoction.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Embodiment 8
The preparation method for the activated carbon that the present embodiment is provided, the preparation method of its activated carbon provided with embodiment 1 is substantially
Identical, difference is, in the preparation method for the activated carbon that the present embodiment is provided, and Chinese medicine dreg used is the field Hu dregs of a decoction.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Embodiment 9
The preparation method for the activated carbon that the present embodiment is provided, the preparation method of its activated carbon provided with embodiment 1 is substantially
Identical, difference is, in the preparation method for the activated carbon that the present embodiment is provided, and Chinese medicine dreg used is astragalus root dregs.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Embodiment 10
The preparation method for the activated carbon that the present embodiment is provided, the preparation method of its activated carbon provided with embodiment 1 is substantially
Identical, difference is, in the preparation method for the activated carbon that the present embodiment is provided, and Chinese medicine dreg used is the motherwort dregs of a decoction.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Embodiment 11
The preparation method for the activated carbon that the present embodiment is provided, the preparation method of its activated carbon provided with embodiment 1 is substantially
Identical, difference is, in the preparation method for the activated carbon that the present embodiment is provided, and activator solution used is that potassium carbonate is molten
Liquid.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Embodiment 12
The preparation method for the activated carbon that the present embodiment is provided, the preparation method of its activated carbon provided with embodiment 1 is substantially
Identical, difference is, in the preparation method for the activated carbon that the present embodiment is provided, and activator solution used is phosphoric acid solution.
The present embodiment additionally provides a kind of activated carbon, and it is the preparation method preparation of the activated carbon provided by the present embodiment
Gained.
Test example
In order to prove in the superiority that activated carbon and preparation method thereof is provided among the embodiment of the present invention, the selection of this test example
The activated carbon of embodiment 1-5 offers is stated as sample progress N2 adsorption characterization test, its test result refer to Fig. 1-10.
Further, the N on peppermint dregs of a decoction matrix activated carbon2Physical absorption characterization test result referring to Fig.1 and 2,
Wherein, Fig. 1 is the N of peppermint dregs of a decoction matrix activated carbon2Adsorption/desorption isotherms, I type isothermal of obvious IUPAC classification is presented in it
Line, indicates the superiority of micropore in pore structure.Furthermore it is also possible to find, in relative pressure 0.4<P/P0<Between 0.8, inhale
Desorption curve one small hysteresis loop of formation, illustrates to contain a small amount of central hole structure in structure.In addition, from Fig. 2 provide it is thin
From the point of view of the DFT pore size distributions of lotus dregs of a decoction matrix activated carbon, wherein have a large amount of below 2nm micropore and 2-6nm mesopore, its specific surface area
Up to 1569m2/g.Therefore, in general, the peppermint dregs of a decoction matrix activated carbon provided in embodiment 1 has good distribution of pores
Structure and higher specific surface area, its adsorption capacity performance are excellent.
Further, the N on schizonepeta dregs of a decoction matrix activated carbon2Physical absorption characterization test result refer to Fig. 3 and Fig. 4,
Wherein, Fig. 3 is the N of schizonepeta dregs of a decoction matrix activated carbon2Adsorption/desorption isotherms, I type isothermal of obvious IUPAC classification is presented in it
Line, indicates the superiority of micropore in pore structure.Furthermore it is also possible to find, in relative pressure 0.4<P/P0<Between 0.8, inhale
Desorption curve one small hysteresis loop of formation, illustrates to contain a small amount of central hole structure in structure.In addition, the chaste tree provided from Fig. 4
From the point of view of the DFT pore size distributions of mustard dregs of a decoction matrix activated carbon, wherein have a large amount of below 2nm micropore and 2-6nm mesopore, its specific surface area
Up to 1569m2/g.Therefore, in general, the schizonepeta dregs of a decoction matrix activated carbon provided in embodiment 2 has good distribution of pores
Structure and higher specific surface area, its adsorption capacity performance are excellent.
Further, the N on Herba Andrographitis dregs of a decoction matrix activated carbon2Physical absorption characterization test result refer to Fig. 5 and figure
6, wherein, Fig. 5 is the N2 adsorption/desorption isotherms of Herba Andrographitis dregs of a decoction matrix activated carbon, and I type of obvious IUPAC classification etc. is presented in it
Warm line, indicates the superiority of micropore in pore structure.Furthermore it is also possible to find, in relative pressure 0.4<P/P0<Between 0.8,
Adsorption desorption curve one small hysteresis loop of formation, illustrates to contain a small amount of central hole structure in structure.In addition, provided from Fig. 6
From the point of view of the DFT pore size distributions of Herba Andrographitis dregs of a decoction matrix activated carbon, wherein having a large amount of below 2nm micropore and 2-6nm mesopore, it compares table
Area is up to 1667m2/g.Therefore, in general, the Herba Andrographitis dregs of a decoction matrix activated carbon provided in embodiment 3 has good hole
Gap distributed architecture and higher specific surface area, its adsorption capacity performance are excellent.
Further, the N on capsule of weeping forsythia dregs of a decoction matrix activated carbon2Physical absorption characterization test result refer to Fig. 7 and Fig. 8.
Wherein, Fig. 7 is the N of capsule of weeping forsythia dregs of a decoction matrix activated carbon2Adsorption/desorption isotherms, I type isothermal of obvious IUPAC classification is presented in it
Line, indicates the superiority of micropore in pore structure.Furthermore it is also possible to find, in relative pressure 0.4<P/P0<Between 0.8, inhale
Desorption curve one small hysteresis loop of formation, illustrates to contain a small amount of central hole structure in structure.In addition, the company provided from Fig. 8
From the point of view of sticking up the DFT pore size distributions of dregs of a decoction matrix activated carbon, wherein have a large amount of below 2nm micropore and 2-6nm mesopore, its specific surface area
Up to 1690m2/g.Therefore, in general, the capsule of weeping forsythia dregs of a decoction matrix activated carbon provided in embodiment 4 has good distribution of pores
Structure and higher specific surface area, its adsorption capacity performance are excellent.
Further, the mixing dregs of a decoction base on being made up of the capsule of weeping forsythia dregs of a decoction, the Herba Andrographitis dregs of a decoction, the schizonepeta dregs of a decoction and the peppermint dregs of a decoction
The N of activated carbon2Physical absorption characterization test result refer to Fig. 9 and Figure 10.Wherein, Fig. 9 is the N of mixing dregs of a decoction matrix activated carbon2Inhale
Attached desorption isotherm, it is presented I type thermoisopleth of obvious IUPAC classification, indicates the superiority of micropore in pore structure.Separately
Outside, it is also found that in relative pressure 0.4<P/P0<Between 0.8, adsorption desorption curve one small hysteresis loop of formation, explanation
Contain a small amount of central hole structure in structure.In addition, from the point of view of the DFT pore size distributions for the mixing dregs of a decoction matrix activated carbon that Fig. 8 is provided, wherein
There are a large amount of below 2nm micropore and 2-6nm mesopore, its specific surface area is up to 1569m2/g.Therefore, in general, embodiment 5
The mixing dregs of a decoction matrix activated carbon of middle offer has good distribution of pores structure and higher specific surface area, the performance of its adsorption capacity
It is excellent.
In summary, the embodiment of the present invention is carried out after once activating by using activator to Chinese medicine dreg, is continued to it
Carry out constant temperature re-activation and post processing so that prepared activated carbon possesses preferably adsorption capacity, it is even more important that living
Property charcoal preparing raw material wide material sources, it is and cheap, there is larger promotional value using upper in industry.In addition, above-mentioned activity
The preparation method of charcoal is also equipped with preparation technology simply, the high advantage of preparation efficiency.Therefore, above-described embodiment provide activated carbon and
Its preparation method, possesses the advantage that technique is simple and preparation efficiency is high, raw material is sufficient and cheap, these are favourable on the whole
In environmental protection and effective recycling of resource, therefore it possesses larger application value.
Embodiments described above is a part of embodiment of the invention, rather than whole embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Claims (10)
1. a kind of preparation method of activated carbon, it is characterised in that it comprises the following steps：
Chinese medicine dreg is mixed with activator solution, and carries out sealing and standing and drying successively, the first activation products are obtained；
First activation products are heated successively and constant temperature activation, obtain the second activation products；
Second activation products are post-processed.
2. the preparation method of activated carbon according to claim 1, it is characterised in that the Chinese medicine dreg be the peppermint dregs of a decoction,
The schizonepeta dregs of a decoction, the Herba Andrographitis dregs of a decoction, the capsule of weeping forsythia dregs of a decoction, the fruit of glossy privet dregs of a decoction, the Chinese ephedra dregs of a decoction, the field Hu dregs of a decoction, astragalus root dregs and motherwort medicinal
At least one of slag.
3. the preparation method of activated carbon according to claim 1, it is characterised in that the activator solution is that zinc chloride is molten
Any one in liquid, solution of potassium carbonate or phosphoric acid solution.
4. the preparation method of activated carbon according to claim 3, it is characterised in that Chinese medicine dreg concentration described in per 1g
For the 0.05-3mol/L activator 5-25mL.
5. the preparation method of the activated carbon according to claim 1-4 any one, it is characterised in that carry out sealing and standing
Time is 23-25h.
6. the preparation method of activated carbon according to claim 5, it is characterised in that temperature when being dried is 79-81
DEG C, the time is 23-25h, and the moisture content of first activation products is less than 15% after drying.
7. the preparation method of activated carbon according to claim 1, it is characterised in that first activation products are heated
When, atmosphere protection has been carried out, and heat temperature raising speed is 10 DEG C/min.
8. the preparation method of activated carbon according to claim 7, it is characterised in that first activation products are carried out permanent
During temperature activation, activation temperature is 400-700 DEG C, and soak time is 0.5-4h.
9. the preparation method of activated carbon according to claim 1, it is characterised in that after being carried out to second activation products
The process of processing includes room temperature cooling, pickling, washing and dried successively.
10. a kind of activated carbon, it is characterised in that it passes through the preparation method of the activated carbon described in claim 1-9 any one
It is made.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589825A (en) * | 2019-10-11 | 2019-12-20 | 河南科技学院 | Preparation method of glossy privet fruit bioactive carbon |
| CN113479876A (en) * | 2021-08-05 | 2021-10-08 | 河南中医药大学 | Belladonna herb residue porous carbon and preparation method and application thereof |
| CN116040627A (en) * | 2022-12-22 | 2023-05-02 | 华中农业大学 | Porous carbon, composite material, diaphragm modification material and application |
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| CN110589825B (en) * | 2019-10-11 | 2021-05-25 | 河南科技学院 | Preparation method of glossy privet fruit bioactive carbon |
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