CN117142461A - Edible fungus residue treatment method, graphene and application thereof - Google Patents
Edible fungus residue treatment method, graphene and application thereof Download PDFInfo
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- CN117142461A CN117142461A CN202310993556.4A CN202310993556A CN117142461A CN 117142461 A CN117142461 A CN 117142461A CN 202310993556 A CN202310993556 A CN 202310993556A CN 117142461 A CN117142461 A CN 117142461A
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- edible fungus
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- edible
- polyethylene plastic
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- 241000233866 Fungi Species 0.000 title claims abstract description 93
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000004698 Polyethylene Substances 0.000 claims abstract description 43
- -1 polyethylene Polymers 0.000 claims abstract description 43
- 229920000573 polyethylene Polymers 0.000 claims abstract description 43
- 229920003023 plastic Polymers 0.000 claims abstract description 40
- 239000004033 plastic Substances 0.000 claims abstract description 40
- 238000000197 pyrolysis Methods 0.000 claims abstract description 33
- 239000002699 waste material Substances 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 20
- 239000011575 calcium Substances 0.000 claims abstract description 15
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 240000006499 Flammulina velutipes Species 0.000 claims description 5
- 239000012785 packaging film Substances 0.000 claims description 5
- 229920006280 packaging film Polymers 0.000 claims description 5
- 244000234623 Coprinus comatus Species 0.000 claims description 3
- 235000004439 Coprinus comatus Nutrition 0.000 claims description 3
- 235000016640 Flammulina velutipes Nutrition 0.000 claims description 3
- 244000252132 Pleurotus eryngii Species 0.000 claims description 3
- 235000001681 Pleurotus eryngii Nutrition 0.000 claims description 3
- 240000001462 Pleurotus ostreatus Species 0.000 claims description 3
- 235000001603 Pleurotus ostreatus Nutrition 0.000 claims description 3
- 240000006794 Volvariella volvacea Species 0.000 claims description 3
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 claims description 3
- 239000002362 mulch Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 240000000599 Lentinula edodes Species 0.000 claims 1
- 235000001715 Lentinula edodes Nutrition 0.000 claims 1
- 239000002243 precursor Substances 0.000 abstract description 8
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 3
- 125000004432 carbon atom Chemical group C* 0.000 abstract description 3
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 229930195733 hydrocarbon Natural products 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003575 carbonaceous material Substances 0.000 abstract description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000003993 interaction Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 12
- 239000000047 product Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000002994 raw material Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000003337 fertilizer Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000000227 grinding Methods 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000003917 TEM image Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 238000004626 scanning electron microscopy Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000002411 thermogravimetry Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910001576 calcium mineral Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000001350 scanning transmission electron microscopy Methods 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004627 transmission electron microscopy Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/184—Preparation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/04—Specific amount of layers or specific thickness
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to the technical field of carbon materials, and particularly relates to an edible fungus residue treatment method, graphene and application thereof. The edible fungus dreg treatment method provided by the invention comprises the following steps: mixing edible fungus residues and polyethylene plastic for pyrolysis to obtain graphene; the edible fungus residues contain calcium, and the content of the calcium in the edible fungus residues is more than 1000mmol/kg. In the process of blending pyrolysis of the edible fungus residues and the polyethylene plastic, the polyethylene plastic generates a large amount of hydrocarbon radicals, so that deep decomposition of the edible fungus residues is promoted, and a precursor favorable for preparing graphene is obtained; calcium in the edible fungus residues promotes interaction between the edible fungus residues and the polyethylene material to obtain more graphene precursors, promotes catalytic conversion of the graphene precursors, guides ordered growth of carbon atoms, and is beneficial to formation of graphene. The method not only solves the problem of recycling waste of the edible fungus residues, but also realizes green and low-cost preparation of graphene.
Description
Technical Field
The invention belongs to the technical field of carbon materials, and particularly relates to an edible fungus residue treatment method, graphene and application thereof.
Background
Edible fungi are fungi (large fungi) which are large in fruiting body and can be eaten. Edible fungi are organic, nutritional and health-care green foods, and the edible fungi cultivation has the advantages of small investment, short period and quick response, so the industry for cultivating edible fungi is rapidly developed. With the rapid development of the edible fungus cultivation industry, edible fungus residues as byproducts of edible fungi are also produced in large quantities. The raw materials of the edible fungus residues are the mixture of biomasses such as wood chips, straws, rice hulls, shells and the like, and the biomass mixture is changed into the edible fungus residues after crushing, stewing sterilization, inoculation and edible fungus growth. Edible fungus residues are used as emerging solid wastes, and no feasible utilization means is available at present. Wherein, a small part of the fertilizer is tried to be developed and utilized as fertilizer or feed, but the fertilizer has the defects of long composting period, uncontrollable property and the like, and the implementation of the fertilizer is limited; most of the waste water is directly discarded or burned, occupies land and grows mould, so that resource waste and environmental pollution (atmospheric pollution, water pollution and soil pollution) are caused. How to reasonably treat and dispose edible fungus residues becomes a problem to be solved.
Disclosure of Invention
In view of the above, the invention provides an edible fungus residue treatment method, graphene and application thereof.
In order to solve the technical problems, the invention provides a method for processing edible fungus residues, which comprises the following steps:
mixing edible fungus residues and polyethylene plastic for pyrolysis to obtain graphene;
the edible fungus residues contain calcium, and the content of the calcium in the edible fungus residues is more than 1000mmol/kg.
Preferably, the mass ratio of the edible fungus residues to the polyethylene plastic is 10:1-1:10.
Preferably, the pyrolysis temperature is 800-1000 ℃, and the pyrolysis heat preservation time is 2-5 h.
Preferably, the heating rate for heating to the temperature required by pyrolysis is 1-20 ℃/min.
Preferably, the mixing further comprises:
removing impurities from edible fungus residues, sequentially drying, crushing and sieving to obtain edible fungus residue powder.
Preferably, the polyethylene plastic is waste polyethylene plastic;
the mixing process further comprises the following steps: and cleaning and drying the waste polyethylene plastic, and crushing to obtain plastic scraps.
Preferably, the waste polyethylene plastic comprises: one or more of waste polyethylene mulch film, waste polyethylene plastic bag and waste polyethylene packaging film.
Preferably, the edible fungus residues are fungus sticks after edible fungus cultivation, and the edible fungus comprises one or more of mushrooms, flammulina velutipes, oyster mushrooms, coprinus comatus, pleurotus eryngii and straw mushrooms.
The invention also provides the graphene obtained by the edible fungus residue treatment method according to the technical scheme, wherein the thickness of the graphene is 1-8 nm, and the number of carbon layers is 3-25.
The invention also provides application of the graphene in the fields of high-strength composite material preparation, energy storage or catalysis.
The invention provides a method for processing edible fungus residues, which comprises the following steps: mixing edible fungus residues and polyethylene plastic for pyrolysis to obtain graphene; the edible fungus residues contain calcium, and the content of the calcium in the edible fungus residues is more than 1000mmol/kg. In the invention, during the blending pyrolysis process of the edible fungus residues and the polyethylene plastic, the polyethylene plastic generates a large amount of hydrocarbon radicals to promote the deep decomposition of the edible fungus residues and obtain a large amount of precursors which are beneficial to the preparation of graphene; the calcium in the edible fungus residues can strengthen interaction between the edible fungus residues and the polyethylene material to obtain more precursors for preparing graphene, promote catalytic conversion of the graphene precursors, guide ordered growth of carbon atoms, play a role of a catalyst and obtain a high-value graphene product. The invention takes the waste edible fungus residues and polyethylene plastics as raw materials to obtain the high-value carbon nanomaterial graphene, which not only solves the problem of recycling waste of the edible fungus residues, but also realizes the green and low-cost preparation of the high-value carbon nanomaterial graphene.
Drawings
FIG. 1 is an SEM image of the pyrolysis product prepared in example 1;
FIG. 2 is a TEM image of the pyrolysis product prepared in example 1;
fig. 3 is a thermogravimetric plot of graphene prepared in example 1.
Detailed Description
The invention provides a method for processing edible fungus residues, which comprises the following steps:
and mixing the edible fungus residues with polyethylene plastic for pyrolysis to obtain graphene.
In the invention, the edible fungus residues are preferably fungus sticks after edible fungus cultivation, and the edible fungus preferably comprises one or more of mushrooms, flammulina velutipes, oyster mushrooms, coprinus comatus, pleurotus eryngii and straw mushrooms.
In the invention, the edible fungus residues contain calcium, and the content of the calcium in the edible fungus residues is more than 1000mmol/kg, preferably 1400-1800 mmol/kg. In the invention, the ash content of the edible fungus residue is preferably more than 15%, more preferably 16-24%.
In the present invention, the polyethylene plastic is preferably waste polyethylene plastic; the waste polyethylene plastic comprises: one or more of waste polyethylene mulch film, waste polyethylene plastic bag and waste polyethylene packaging film.
In the invention, the mass ratio of the edible fungus residues to the polyethylene plastic is preferably 1-10:1-10, more preferably 1-2:1.
In the present invention, the mixing step preferably further comprises:
removing impurities from edible fungus residues, sequentially drying, crushing and sieving to obtain edible fungus residue powder. In the invention, the impurity removal is preferably to remove soil in the edible fungus residues. The method has no special requirement on the impurity removal mode, and only the impurities in the edible fungus residues can be removed. In the present invention, the drying is preferably a drying, and the temperature of the drying is preferably 100 to 110 ℃, more preferably 105 ℃; the drying time is preferably 3 to 5 hours, more preferably 4 hours. The invention has no special requirement on the crushing, and can be realized by adopting a conventional mode in the field. In the present invention, the pore diameter of the screen for sieving is preferably 20 to 60 mesh, more preferably 30 to 40 mesh.
In the present invention, the mixing step preferably further comprises: and cleaning and drying the waste polyethylene plastic, and crushing to obtain plastic scraps. The invention has no special requirement on the cleaning, and can clean the dirt on the surface of the waste polyethylene plastic. The drying is not particularly limited as long as the solvent on the surface of the waste polyethylene plastic can be removed. In the present invention, the size of the crushed product is preferably 0.2 to 2. Mu.m, more preferably 0.5 to 1. Mu.m.
The invention has no special requirement on the mixing, so long as the mixing can be uniform. In an embodiment of the invention, the mixing means is preferably grinding.
In the present invention, the pyrolysis temperature is preferably 800 to 1000 ℃, more preferably 800 to 900 ℃; the holding time for the pyrolysis is preferably 2 to 5 hours, more preferably 2 to 4 hours. In the present invention, the heating rate to the temperature required for pyrolysis is preferably 1 to 20℃per minute, more preferably 2 to 10℃per minute.
In the present invention, the pyrolysis is preferably performed in a protective atmosphere, which is preferably an inert gas or nitrogen, more preferably nitrogen. In the present invention, the inert gas is preferably argon or helium. In the present invention, the pyrolysis is preferably performed in a pyrolysis reactor. In the present invention, the pyrolysis reactor preferably comprises a tube furnace, a muffle furnace, a bedroom fixed bed, a vertical fixed bed, or a fluidized bed.
In the present invention, the pyrolysis preferably further comprises: the post-pyrolysis system was cooled to room temperature. In the present invention, the cooling is preferably air cooling. In the present invention, the temperature of the room temperature is preferably 20 to 35 ℃, more preferably 25 to 30 ℃.
According to the invention, the edible fungus residues rich in calcium and loose in structure are used as raw materials, and the raw materials and the waste polyethylene plastics are subjected to blending pyrolysis, so that on one hand, free radicals which cause condensation and coking of the edible fungus residues can be captured by pyrolysis products of the waste polyethylene plastics, and hydrocarbon radicals and hydrogen radicals are provided for deepening decomposition of the edible fungus residues; meanwhile, calcium minerals in the edible fungus residues play two important roles in blending pyrolysis: (1) strengthening the synergism of the edible fungus residues and the waste plastics to obtain a large amount of precursors for preparing graphene; (2) promoting the catalytic decomposition of the precursor of the graphene, guiding the ordered growth of carbon atoms, and obtaining the high-value carbon nanomaterial graphene. Compared with the traditional production process for producing graphene by using fossil fuel as a raw material, the edible fungus residues are low in price and wide in source, and the production cost of graphene is reduced while recycling of edible fungus residues is realized.
The invention also provides the graphene obtained by the edible fungus residue treatment method according to the technical scheme, wherein the thickness of the graphene is 1-8 nm, preferably 1-5 nm; the number of the carbon layers of the graphene is 3-25, preferably 3-12.
In the invention, the graphene has excellent mechanical, thermal and photoelectric properties.
The invention further provides the graphene. The method is used for the application in the fields of high-strength composite material preparation, energy storage or catalysis.
The technical solutions provided by the present invention are described in detail below in conjunction with examples for further illustrating the present invention, but they should not be construed as limiting the scope of the present invention.
Example 1
Removing impurities such as soil from the mushroom sticks, drying at 105 ℃ for 4 hours, crushing the dried mushroom sticks, and sieving the crushed mushroom sticks with a 40-mesh sieve to obtain mushroom residue powder; the ash content in the mushroom residue powder is 16.72 percent, and the Ca content is 1406.4mmol/kg;
cleaning, drying and shearing the waste agricultural polyethylene mulching film to be 1 mu m in size to obtain plastic scraps;
grinding and mixing mushroom residue powder and plastic scraps in a mass ratio of 1:1, placing the mixture into a vertical fixed bed, heating to 800 ℃ at a heating rate of 10 ℃/min by taking nitrogen as a shielding gas, and naturally cooling to 25 ℃ after pyrolysis for 2 hours to obtain the graphene.
Example 2
Removing impurities such as soil from needle mushroom fungus sticks, drying at 105 ℃ for 4 hours, crushing the dried needle mushroom fungus sticks, and sieving the crushed needle mushroom fungus sticks with a 20-mesh sieve to obtain needle mushroom fungus dreg powder; the ash content in the flammulina velutipes fungus dreg powder is 19.65%, and the Ca content is 1235.8mmol/kg;
cleaning and drying the waste polyethylene packaging film, and then shearing the waste polyethylene packaging film to be 0.5 mu m in size to obtain plastic scraps;
grinding and mixing flammulina velutipes fungus dreg powder and plastic scraps in a mass ratio of 2:1, placing the mixture in a horizontal tube furnace, heating to 900 ℃ at a heating rate of 2 ℃/min by taking nitrogen as a shielding gas, and naturally cooling to 25 ℃ after pyrolysis for 4 hours to obtain the graphene.
The pyrolysis product prepared in example 1 was subjected to scanning electron microscopy to obtain an SEM image, as shown in fig. 1. The pyrolysis product prepared in example 1 was subjected to transmission electron microscopy to obtain a TEM image, as shown in fig. 2. As can be seen from fig. 1 and 2, the product obtained by pyrolysis in example 1 is a thin layer graphene with a cluster paper-like structure having an edge thickness of about 1 to 3nm and a carbon layer number of about 3 to 8 layers.
And (3) carrying out scanning electron microscopy and transmission electron microscopy on the pyrolysis product prepared in the embodiment 2, and finding that the obtained product is graphene with a cluster paper-like structure, the edge thickness of which is about 1-5 nm and the carbon layer number of which is about 3-12 layers.
Thermal gravimetric analysis was performed on the graphene prepared in example 1 to obtain a thermal gravimetric graph, and as shown in fig. 3, the yield of the graphene in example 1 was 9.24% through thermal gravimetric peak integration calculation.
Thermogravimetric analysis of the graphene prepared in example 2 gave a yield of 8.82% for the graphene in example 2 by thermogravimetric peak integration calculation.
Although the foregoing embodiments have been described in some, but not all, embodiments of the invention, it should be understood that other embodiments may be devised in accordance with the present embodiments without departing from the spirit and scope of the invention.
Claims (10)
1. A method for processing edible fungus residues comprises the following steps:
mixing edible fungus residues and polyethylene plastic for pyrolysis to obtain graphene;
the edible fungus residues contain calcium, and the content of the calcium in the edible fungus residues is more than 1000mmol/kg.
2. The edible fungus residue treatment method according to claim 1, wherein the mass ratio of the edible fungus residue to the polyethylene plastic is 10:1-1:10.
3. The method for processing edible fungi residues according to claim 1 or 2, wherein the pyrolysis temperature is 800-1000 ℃, and the pyrolysis heat preservation time is 2-5 h.
4. The method for treating edible fungi residues according to claim 3, wherein the heating rate for heating to the temperature required for pyrolysis is 1-20 ℃/min.
5. The method for processing edible fungi residues according to claim 1, further comprising, before the mixing:
removing impurities from edible fungus residues, sequentially drying, crushing and sieving to obtain edible fungus residue powder.
6. The method for processing edible fungi residues according to claim 1, wherein the polyethylene plastic is waste polyethylene plastic;
the mixing process further comprises the following steps: and cleaning and drying the waste polyethylene plastic, and crushing to obtain plastic scraps.
7. The method of claim 6, wherein the waste polyethylene plastic comprises: one or more of waste polyethylene mulch film, waste polyethylene plastic bag and waste polyethylene packaging film.
8. The method according to claim 1, wherein the edible fungus residue is a fungus stick after cultivating an edible fungus, and the edible fungus includes one or more of Lentinus edodes, flammulina velutipes, oyster mushrooms, coprinus comatus, pleurotus eryngii, and straw mushrooms.
9. The graphene obtained by the edible fungus residue treatment method according to any one of claims 1 to 8, wherein the thickness of the graphene is 1 to 8nm, and the number of carbon layers is 3 to 25.
10. Use of the graphene according to claim 9 in the field of high strength composite preparation, energy storage or catalysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310993556.4A CN117142461A (en) | 2023-08-08 | 2023-08-08 | Edible fungus residue treatment method, graphene and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310993556.4A CN117142461A (en) | 2023-08-08 | 2023-08-08 | Edible fungus residue treatment method, graphene and application thereof |
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| Publication Number | Publication Date |
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| CN117142461A true CN117142461A (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310993556.4A Pending CN117142461A (en) | 2023-08-08 | 2023-08-08 | Edible fungus residue treatment method, graphene and application thereof |
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| Country | Link |
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| CN (1) | CN117142461A (en) |
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2023
- 2023-08-08 CN CN202310993556.4A patent/CN117142461A/en active Pending
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