CN106629708A - Preparation method for waste edible-mushroom culture medium formed active carbon - Google Patents
Preparation method for waste edible-mushroom culture medium formed active carbon Download PDFInfo
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- CN106629708A CN106629708A CN201610833139.3A CN201610833139A CN106629708A CN 106629708 A CN106629708 A CN 106629708A CN 201610833139 A CN201610833139 A CN 201610833139A CN 106629708 A CN106629708 A CN 106629708A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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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
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Abstract
The invention relates to waste edible-mushroom culture medium formed active carbon and a preparation method thereof, belonging to the field of carbon materials. The preparation method comprises the following steps: drying, crushing, pyrolysis carbonization under nitrogen, impregnation with an activating agent, activating, and press molding by adopting a binder. According to the invention, the edible-mushroom culture medium comprises biomasses like straw, sawdust and seed shells, so the problems of stacking and pollution of a waste mushroom culture medium are solved; the effective utilization rate of waste resources is improved; and new economic values are created. The active carbon prepared by using the method provided by the invention has a specific surface area of 500 to 3000 m2/g and a pore size of 1 to 10 nm, has rich microporous and mesoporous structures and strong adsorbability, and can be extensively applied to fields like environment, food, energy, medicine and chemical industry.
Description
Technical field
The present invention relates to prepared by activated carbon, belong to field of charcoal material, be related to a kind of discarded edible mushroom culture medium Constitutive active
The preparation method of charcoal, it is particularly applicable to prepare the activated carbon with high specific surface area using agriculture and forestry organic waste material.
Background technology
With developing rapidly for edible fungi of china industry, China's discarded edible mushroom culture medium is more and more.According to statistics, 2015
Year, the national discarded edible mushroom culture medium quantity for producing was up to 4,000,000 tons, at present for these obsolete fungus sticks are but without rational
Using directly burning or directly discarding after being dried mostly, this processing mode not only wastes remaining fibre in obsolete fungus stick
The material with value such as dimension element and lignin, can also cause great environmental pollution.
There are pore structure, huge specific surface area and the abundant surface of prosperity as activated carbon prepared by raw material with biomass
Functional group, so having preferable absorption property, can be used for organic matter and inorganic matter, the colloidal solid in adsorbed gas, solution
Deng being widely used in medicine, food processing, three industrial wastes improvement, gold extraction, semiconductor application, ultracapacitor, battery
The aspects such as electrode material.The primary raw material for preparing activated carbon is the thing for having the carbon contents such as coal, timber, shell and sawdust higher
Matter, in recent years, due to the exhaustion of coal resources, timber it is in short supply, how using discarded biomass resource prepare activated carbon into
For the emphasis that everybody studies.
Therefore, the present invention proposes a kind of preparation method of discarded edible mushroom culture medium pressed active carbon, it is intended to rationally sharp
Discarded edible mushroom culture medium is used, is reduced due to the improper environmental pollution for bringing of discarded edible mushroom medium treatment, while finding out one
Plant and be suitable to prepare the abandoned biomass of activated carbon, realize rationally processing discarded edible mushroom culture medium and discarded using cheap
Biomass resource produces the dual purpose of activated carbon, and culture medium of edible fungus used is the biomass such as stalk, wood chip, seed shell.
The content of the invention
The present invention is directed to above-mentioned problem, there is provided a kind of discarded edible mushroom culture medium pressed active carbon and its preparation
Method
The present invention for achieving the above object, takes technical scheme below to be achieved:
A kind of discarded edible mushroom culture medium pressed active carbon, the specific surface area of the activated carbon is 500-3000m2/ g, hole
Footpath is in 1-10nm.
Another object of the present invention is to the preparation method of above-mentioned discarded edible mushroom culture medium pressed active carbon is provided, including
Following steps：
(1) by discarded edible mushroom culture medium crushed after being dried；
(2) under nitrogen protection, in high temperature process furnances by discarded edible mushroom culture medium powder with the speed of 10-20 DEG C/min
Degree is warming up to 400-800 DEG C of pyrolysis charring 0.5-2 hour, is cooled to after room temperature and takes out carbonizing production；
(3) pyrolysis charring product and activator are compared into 1 according to activator than pyrolysis carbonaceous amount:1-4:1 mix after go from
Dissolve in sub- water, dry completely after dipping 10-48 hours；It is preferred that the activator is ammonium phosphate, ammonium dihydrogen phosphate, phosphoric acid, hydrogen
Any one in potassium oxide, NaOH, zinc chloride, potassium chloride；
(4) under nitrogen protection, after impregnated carbon being warming up to into 600-1000 DEG C with the speed of 2-10 DEG C/min, 0.5- is activated
3 hours, it is cooled to after room temperature and takes out activation charcoal, after deionized water immersion 10-36 hours 0.5-2mol/L hydrochloric acid solutions is used
Immersion 10-36 hours, deionized water is washed till after neutrality and filters, and 60-150 DEG C is positioned in baking oven after filtration and is dried to constant weight, obtains
To discarded edible mushroom culture matrix activated carbon.
(5) first using sodium carboxymethylcellulose as binding agent and deionized water the carboxylic that mass fraction is 2%-15% is made
Sodium carboxymethylcellulose pyce glue, then by sodium carboxymethylcellulose glue and discarded edible mushroom culture matrix activated carbon according to 1.5:1-3.5:
1 ratio is sufficiently stirred for, and obtains activated carbon clay.
(6) it is with 2-15MPa pressure that activated carbon clay is compressing with forcing press, it is positioned over 60-150 DEG C of drying in baking oven
5-15 hours.
Beneficial effects of the present invention are as follows：
The invention provides a kind of preparation method of discarded edible mushroom culture medium pressed active carbon, the activated carbon have compared with
High specific surface area (500-3000m2/ g), aperture is in 1-10nm.
The invention provides a kind of method that activated carbon is produced by new raw material (discarded edible mushroom culture medium), effectively
Alleviate the situation of activated carbon preparing raw material shortage main at present.
The invention provides a kind of method of the recycling of new discarded edible mushroom culture medium, effectively to discarded food
Processed with bacterium culture medium, advantageously accounted for the pollution that the improper process of discarded edible mushroom culture medium brings.
Description of the drawings
The scanning electron microscope (SEM) photograph of Fig. 1 embodiments 1.
The scanning electron microscope (SEM) photograph of Fig. 2 embodiments 2.
The scanning electron microscope (SEM) photograph of Fig. 3 embodiments 3.
The scanning electron microscope (SEM) photograph of Fig. 4 embodiments 4.
The scanning electron microscope (SEM) photograph of Fig. 5 embodiments 5.
Specific embodiment
A kind of discarded edible mushroom culture medium pressed active carbon preparation method is embodiments provided, for providing one kind
With special micropore, meso-hole structure, the activated carbon for possessing excellent absorption property, and environmental pollution and the wasting of resources can be avoided.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, following examples are listed,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that the embodiments described below are only this
Invent a part of embodiment, and not all embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
Have and make all other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.Further with
Lower embodiment may be selected from a collection of discarded edible mushroom culture medium.
Embodiment 1
A kind of discarded edible mushroom culture medium pressed active carbon preparation method, belongs to chemical activation method, comprises the following steps:
(1) by discarded edible mushroom culture medium crushed after being dried, 40 mesh sieves are crossed, obtains discarded edible mushroom culture medium powder；
(2) under nitrogen protection, discarded edible mushroom culture medium powder is warming up to into 500 DEG C of pyrolysis with the speed of 20 DEG C/min
Charing 1 hour, is cooled to after room temperature and takes out carbonizing production；
(3) pyrolysis charring product and activator are compared into 2 according to activator than pyrolysis carbonaceous amount:1 mixing is after deionized water
Middle dissolving, at 80 DEG C, impregnates 24 hours under 130r/min rotating speeds in constant-temperature table；
(4) dipping solution is placed in baking oven, is dried to constant weight at 105 DEG C；
(5) under nitrogen protection, it is living after impregnated carbon being warming up to into 800 DEG C with the speed of 5 DEG C/min in high temperature process furnances
Change 1 hour, be cooled to after room temperature and take out activation charcoal, deionized water is soaked after soaking 24 hours with 0.5mol/L hydrochloric acid solutions
24 hours, deionized water was washed till filtering drying after neutrality, obtained discarded edible mushroom culture matrix activated carbon.
(6) first using sodium carboxymethylcellulose as binding agent and deionized water the carboxymethyl that mass fraction is 8% is made
Sodium cellulosate glue, then by sodium carboxymethylcellulose glue and discarded edible mushroom culture matrix activated carbon according to 1.5:1 ratio is filled
Divide stirring, obtain activated carbon clay.
(7) it is with 10MPa pressure that activated carbon clay is compressing with forcing press, it is positioned over 105 DEG C of drying 10 in baking oven little
When.
Wherein activator is preferably KOH.
The final products that above-mentioned chemical activation is obtained after processing, specific surface area is 1600m2/g.Scanning electron microscope (SEM) photograph is shown in Fig. 1.
Embodiment 2
A kind of discarded edible mushroom culture medium pressed active carbon preparation method, belongs to chemical activation method, comprises the following steps:
(1) by discarded edible mushroom culture medium crushed after being dried, 40 mesh sieves are crossed, obtains discarded edible mushroom culture medium powder；
(2) under nitrogen protection, in high temperature process furnances by discarded edible mushroom culture medium powder with the speed of 20 DEG C/min
It is warming up to 500 DEG C of pyrolysis charrings 1 hour, is cooled to after room temperature and takes out carbonizing production；
(3) pyrolysis charring product and activator are compared into 3 according to activator than pyrolysis carbonaceous amount:1 mixing is after deionized water
Middle dissolving, at 80 DEG C, impregnates 24 hours under 130r/min rotating speeds in constant-temperature table；
(4) dipping solution is placed in baking oven, is dried to constant weight at 105 DEG C；
(5) under nitrogen protection, after impregnated carbon being warming up to into 800 DEG C with the speed of 5 DEG C/min, activate 0.5 hour, cooling
To room temperature will activation charcoal take out, deionized water soak 24 hours after with 0.5mol/L hydrochloric acid solutions soak 24 hours, go from
Son is washed to filtering drying after neutrality, obtains discarded edible mushroom culture matrix activated carbon.
(6) first using sodium carboxymethylcellulose as binding agent and deionized water the carboxymethyl that mass fraction is 8% is made
Sodium cellulosate glue, then by sodium carboxymethylcellulose glue and discarded edible mushroom culture matrix activated carbon according to 2:1 ratio is abundant
Stirring, obtains activated carbon clay.
(7) it is with 10MPa pressure that activated carbon clay is compressing with forcing press, it is positioned over 105 DEG C of drying 10 in baking oven little
When.
Wherein activator is preferably KOH.
The final products that above-mentioned chemical activation is obtained after processing, specific surface area is 1500m2/g.Scanning electron microscope (SEM) photograph is shown in Fig. 2.
Embodiment 3
A kind of discarded edible mushroom culture medium pressed active carbon preparation method, belongs to chemical activation method, comprises the following steps:
(1) by discarded edible mushroom culture medium crushed after being dried, 40 mesh sieves are crossed, obtains discarded edible mushroom culture medium powder；
(2) under nitrogen protection, in high temperature process furnances by discarded edible mushroom culture medium powder with the speed of 20 DEG C/min
It is warming up to 700 DEG C of pyrolysis charrings 1 hour, is cooled to after room temperature and takes out carbonizing production；
(3) pyrolysis charring product and activator are compared into 3 according to activator than pyrolysis carbonaceous amount:1 mixing is after deionized water
Middle dissolving, at 80 DEG C, impregnates 24 hours under 130r/min rotating speeds in constant-temperature table；
(4) dipping solution is placed in baking oven, is dried to constant weight at 105 DEG C；
(5) under nitrogen protection, after impregnated carbon being warming up to into 800 DEG C with the speed of 5 DEG C/min, activate 1 hour, be cooled to
Activation charcoal is taken out after room temperature, deionized water is soaked 24 hours after soaking 24 hours with 0.5mol/L hydrochloric acid solutions, deionization
Filtering drying after neutrality is washed to, discarded edible mushroom culture matrix activated carbon is obtained.
(6) first using sodium carboxymethylcellulose as binding agent and deionized water the carboxymethyl that mass fraction is 8% is made
Sodium cellulosate glue, then by sodium carboxymethylcellulose glue and discarded edible mushroom culture matrix activated carbon according to 2:1 ratio is abundant
Stirring, obtains activated carbon clay.
(7) it is with 10MPa pressure that activated carbon clay is compressing with forcing press, it is positioned over 105 DEG C of drying 10 in baking oven little
When.
Wherein activator is preferably KOH.
The final products that above-mentioned chemical activation is obtained after processing, specific surface area is 1150m2/g.Scanning electron microscope (SEM) photograph is shown in Fig. 3.
Embodiment 4
A kind of discarded edible mushroom culture medium pressed active carbon preparation method, belongs to chemical activation method, comprises the following steps:
(1) by discarded edible mushroom culture medium crushed after being dried, 40 mesh sieves are crossed, obtains discarded edible mushroom culture medium powder；
(2) under nitrogen protection, in high temperature process furnances by discarded edible mushroom culture medium powder with the speed of 20 DEG C/min
It is warming up to 500 DEG C of pyrolysis charrings 1 hour, is cooled to after room temperature and takes out carbonizing production；
(3) pyrolysis charring product and activator are compared into 2 according to activator than pyrolysis carbonaceous amount:1 mixing is after deionized water
Middle dissolving, at 80 DEG C, impregnates 24 hours under 130r/min rotating speeds in constant-temperature table；
(4) dipping solution is placed in baking oven, is dried to constant weight at 105 DEG C；
(5) under nitrogen protection, after impregnated carbon being warming up to into 700 DEG C with the speed of 5 DEG C/min, activate 1 hour, be cooled to
Activation charcoal is taken out after room temperature, deionized water is soaked 24 hours after soaking 24 hours with 0.5mol/L hydrochloric acid solutions, deionization
Filtering drying after neutrality is washed to, discarded edible mushroom culture matrix activated carbon is obtained.
(6) first using sodium carboxymethylcellulose as binding agent and deionized water the carboxymethyl that mass fraction is 8% is made
Sodium cellulosate glue, then by sodium carboxymethylcellulose glue and discarded edible mushroom culture matrix activated carbon according to 2:1 ratio is abundant
Stirring, obtains activated carbon clay.
(7) it is with 10MPa pressure that activated carbon clay is compressing with forcing press, it is positioned over 105 DEG C of drying 10 in baking oven little
When.
Wherein activator is preferably KOH.
The final products that above-mentioned chemical activation is obtained after processing, specific surface area is 1350m2/g.Scanning electron microscope (SEM) photograph is shown in Fig. 4.
Embodiment 5
A kind of discarded edible mushroom culture medium method for preparation of active carbon, belongs to chemical activation method, comprises the following steps:
(1) by discarded edible mushroom culture medium crushed after being dried, 40 mesh sieves are crossed, obtains discarded edible mushroom culture medium powder；
(2) under nitrogen protection, in high temperature process furnances by discarded edible mushroom culture medium powder with the speed of 20 DEG C/min
It is warming up to 500 DEG C of pyrolysis charrings 1 hour, is cooled to after room temperature and takes out carbonizing production；
(3) pyrolysis charring product and activator are compared into 2 according to activator than pyrolysis carbonaceous amount:1 mixing is after deionized water
Middle dissolving, at 80 DEG C, impregnates 24 hours under 130r/min rotating speeds in constant-temperature table；
(4) dipping solution is placed in baking oven, is dried to constant weight at 105 DEG C；
(5) under nitrogen protection, after impregnated carbon being warming up to into 800 DEG C with the speed of 10 DEG C/min, activate 1 hour, cooling
To room temperature will activation charcoal take out, deionized water soak 24 hours after with 0.5mol/L hydrochloric acid solutions soak 24 hours, go from
Son is washed to filtering drying after neutrality, obtains discarded edible mushroom culture matrix activated carbon.
(6) first using sodium carboxymethylcellulose as binding agent and deionized water the carboxymethyl that mass fraction is 8% is made
Sodium cellulosate glue, then by sodium carboxymethylcellulose glue and discarded edible mushroom culture matrix activated carbon according to 2:1 ratio is abundant
Stirring, obtains activated carbon clay.
(7) it is with 10MPa pressure that activated carbon clay is compressing with forcing press, it is positioned over 105 DEG C of drying 10 in baking oven little
When.
Wherein activator is preferably KOH.
The final products that above-mentioned chemical activation is obtained after processing, specific surface area is 1300m2/g.Scanning electron microscope (SEM) photograph is shown in Fig. 5.
The above, above example only to illustrate technical scheme, rather than a limitation；Although with reference to front
State embodiment to be described in detail the present invention, it will be understood by those within the art that：It still can be to front
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (4)
1. a kind of preparation method of discarded edible mushroom culture medium pressed active carbon, it is characterised in that comprise the following steps：
(1) by discarded edible mushroom culture medium crushed after being dried；
(2) under nitrogen protection, in high temperature process furnances by discarded edible mushroom culture medium powder with the speed liter of 10-20 DEG C/min
Temperature is cooled to after room temperature and takes out carbonizing production to 400-800 DEG C of pyrolysis charring 0.5-2 hour；
(3) pyrolysis charring product and activator are compared into 1 according to activator than pyrolysis carbonaceous amount:1-4:1 mixes after deionized water
Middle dissolving, dries completely after dipping 10-48 hours；The activator is ammonium phosphate, ammonium dihydrogen phosphate, phosphoric acid, potassium hydroxide, hydrogen
Any one in sodium oxide molybdena, zinc chloride, potassium chloride；
(4) under nitrogen protection, after impregnated carbon being warming up to into 600-1000 DEG C with the speed of 2-10 DEG C/min, 0.5-3 is little for activation
When, it is cooled to after room temperature and takes out activation charcoal, soaked with 0.5-2mol/L hydrochloric acid solutions after deionized water immersion 10-36 hours
10-36 hours, deionized water is washed till after neutrality and filters, and 60-150 DEG C is positioned in baking oven after filtration and is dried to weight, is given up
Abandon culture medium of edible fungus activated carbon.
(5) first using sodium carboxymethylcellulose as binding agent and deionized water the carboxymethyl that mass fraction is 2%-15% is made
Sodium cellulosate glue, then by sodium carboxymethylcellulose glue and discarded edible mushroom culture matrix activated carbon according to 1.5:1-3.5:1
Ratio is sufficiently stirred for, and obtains activated carbon clay.
(6) it is with 2-15MPa pressure that activated carbon clay is compressing with forcing press, it is positioned over 60-150 DEG C of drying 5-15 in baking oven
Hour.
2. according to a kind of preparation method of the discarded edible mushroom culture medium pressed active carbon described in claim 1, it is characterised in that
The activator is any one in ammonium phosphate, ammonium dihydrogen phosphate, phosphoric acid, potassium hydroxide, NaOH, zinc chloride, potassium chloride.
3. discarded edible mushroom culture medium pressed active carbon is prepared in accordance with the method for claim 1.
4. discarded edible mushroom culture medium pressed active carbon is prepared in accordance with the method for claim 1, it is characterised in that into
The specific surface area of type activated carbon is 500-3000m2/ g, aperture is in 1-10nm.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455601A (en) * | 2018-04-23 | 2018-08-28 | 长沙蘑道文化创意有限公司 | The method for preparing activated carbon with mushroom culture medium |
| CN108455598A (en) * | 2018-02-11 | 2018-08-28 | 北京科技大学 | A kind of method that antibiotic bacterium dregs prepare the high performance active carbon rich in micropore |
| CN109941994A (en) * | 2019-03-04 | 2019-06-28 | 杭州电子科技大学 | A kind of method and its supercapacitor preparing active carbon based on bean curd of fermented |
| CN110697707A (en) * | 2019-10-22 | 2020-01-17 | 天津大学 | Method for preparing high-performance activated carbon organic pollutant adsorbent by using edible fungus residues |
| CN112279244A (en) * | 2020-10-30 | 2021-01-29 | 山东大学 | Preparation method and application of activated carbon |
| CN113353930A (en) * | 2021-07-27 | 2021-09-07 | 齐鲁工业大学 | Preparation method and application of straw-based antibacterial activated carbon |
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| CN101112985A (en) * | 2007-07-03 | 2008-01-30 | 四川大学 | Method for preparing activated charcoal by using discarded edible mushroom slag |
| CN101544370A (en) * | 2009-05-04 | 2009-09-30 | 成都信息工程学院 | Method for producing active carbon by using traditional Chinese medicine dregs |
| CN101575097A (en) * | 2009-06-12 | 2009-11-11 | 国家林业局林产工业规划设计院 | Method for preparing active carbon from fungus sticks of waste edible fungi |
| CN102040218A (en) * | 2011-01-19 | 2011-05-04 | 成都信息工程学院 | New method for producing active carbon by using biomass wastes |
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| CN101112985A (en) * | 2007-07-03 | 2008-01-30 | 四川大学 | Method for preparing activated charcoal by using discarded edible mushroom slag |
| CN101544370A (en) * | 2009-05-04 | 2009-09-30 | 成都信息工程学院 | Method for producing active carbon by using traditional Chinese medicine dregs |
| CN101575097A (en) * | 2009-06-12 | 2009-11-11 | 国家林业局林产工业规划设计院 | Method for preparing active carbon from fungus sticks of waste edible fungi |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455598A (en) * | 2018-02-11 | 2018-08-28 | 北京科技大学 | A kind of method that antibiotic bacterium dregs prepare the high performance active carbon rich in micropore |
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| CN109941994A (en) * | 2019-03-04 | 2019-06-28 | 杭州电子科技大学 | A kind of method and its supercapacitor preparing active carbon based on bean curd of fermented |
| CN110697707A (en) * | 2019-10-22 | 2020-01-17 | 天津大学 | Method for preparing high-performance activated carbon organic pollutant adsorbent by using edible fungus residues |
| CN112279244A (en) * | 2020-10-30 | 2021-01-29 | 山东大学 | Preparation method and application of activated carbon |
| CN113353930A (en) * | 2021-07-27 | 2021-09-07 | 齐鲁工业大学 | Preparation method and application of straw-based antibacterial activated carbon |
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