CN114534690A - Biomass activated carbon for removing tetracycline and preparation method thereof - Google Patents
Biomass activated carbon for removing tetracycline and preparation method thereof Download PDFInfo
- Publication number
- CN114534690A CN114534690A CN202210270509.2A CN202210270509A CN114534690A CN 114534690 A CN114534690 A CN 114534690A CN 202210270509 A CN202210270509 A CN 202210270509A CN 114534690 A CN114534690 A CN 114534690A
- Authority
- CN
- China
- Prior art keywords
- biomass
- activated carbon
- tetracycline
- preparation
- potassium hydroxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
-
- 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
- B01J20/3085—Chemical treatments not covered by groups B01J20/3007 - B01J20/3078
-
- 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
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
-
- 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
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/336—Preparation characterised by gaseous activating agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
-
- 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
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Carbon And Carbon Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention belongs to the technical field of activated carbon materials, and discloses biomass activated carbon for removing tetracycline and a preparation method thereof. Mixing biomass with a potassium hydroxide solution, and carrying out heat preservation at a certain temperature; and after the heat preservation is finished, activating, and sequentially carrying out acid washing, water washing and drying on the activated product to obtain the biomass activated carbon for removing the tetracycline. The inventionThe preparation method has the advantages of greatly reduced alkali consumption, mild preparation conditions and suitability for industrial large-scale production. The prepared biomass activated carbon has higher specific surface area up to 1796.52m2The volume of the effective hole for adsorbing the tetracycline is obviously improved, and the removal efficiency of the tetracycline is obviously improved. The preparation method of the invention has simple operation, low production cost and obvious environmental and economic benefits.
Description
Technical Field
The invention relates to the technical field of activated carbon materials, in particular to biomass activated carbon for removing tetracycline and a preparation method thereof.
Background
Tetracycline is one of the most widely used antibiotics in human therapy and animal husbandry due to its relatively low cost and effective therapeutic effect. However, antibiotics are difficult to metabolize, with excretion of up to 90% of the urine and feces by humans and animals. Antibiotics are reported to be present in a wide variety of water bodies, such as surface water, ground water, and even drinking water. Researchers around the world have been working on the removal of antibiotics from water bodies, and conventional removal methods include biological methods, electrochemical methods, membrane separation methods, advanced oxidation methods, adsorption methods, and the like.
Compared with other methods, the adsorption method has the advantages of simple operation, low toxicity and energy cost, high removal efficiency and the like. The adsorbents are various and include biomass activated carbon, carbon nanotubes, zeolite, chitosan and the like. Among them, biomass activated carbon has a strong competitive advantage due to its high specific surface area, high stability and benign raw materials. It is known that tetracycline has a longest interatomic distance of about 1.2nm, in other words, a pore volume of 0 to 1.2nm is advantageous for tetracycline adsorption. However, the production of high specific surface area (high micropore volume) biomass activated carbon often requires a large amount of KOH (the conventional mass ratio of KOH solid to biomass is about 2), which results in increased production cost, complicated process, and high KOH concentration is very corrosive to equipment, thus making it difficult to realize industrial application.
Therefore, how to provide a preparation method of the biomass activated carbon capable of efficiently removing tetracycline has important significance to the field of water treatment.
Disclosure of Invention
The invention aims to provide a biomass activated carbon for removing tetracycline and a preparation method thereof, and solves the problem that an adsorbent provided by the prior art is poor in tetracycline adsorption effect.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a preparation method of biomass activated carbon for removing tetracycline, which comprises the following steps:
mixing biomass with a potassium hydroxide solution, and preserving heat at a certain temperature; after the heat preservation is finished, activating in protective gas to obtain an activated product;
and sequentially carrying out acid washing, water washing and drying on the activated product to obtain the biomass activated carbon for removing tetracycline.
Preferably, in the above method for preparing a biomass activated carbon for tetracycline removal, the biomass is pretreated before being mixed with a potassium hydroxide solution; the pretreatment comprises cleaning, drying and crushing.
Preferably, in the above method for preparing the biomass activated carbon for removing tetracycline, the particle size of the crushed biomass is 20 to 40 mesh.
Preferably, in the preparation method of the biomass activated carbon for removing tetracycline, the biomass is one or more of pinecone, pine needles and artificial boards.
Preferably, in the preparation method of the biomass activated carbon for removing tetracycline, the concentration of the potassium hydroxide solution is 4-8 wt%; the mass-volume ratio of the biomass to the potassium hydroxide solution is 1-2 g: 6 mL.
Preferably, in the preparation method of the biomass activated carbon for removing tetracycline, the temperature for heat preservation is 160-300 ℃; the heat preservation time is 60-120 min.
Preferably, in the preparation method of the biomass activated carbon for removing tetracycline, the activation temperature is 890-930 ℃; the activation time is 30-90 min.
The invention also provides the biomass activated carbon for removing tetracycline, which is prepared by the preparation method.
Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:
(1) the preparation method provided by the invention has the advantages that the dosage of alkali is greatly reduced, the preparation conditions are mild, and the preparation method is suitable for industrial large-scale production.
(2) The biomass activated carbon has higher specific surface area which is as high as 1796.52m2And the effective pore volume for adsorbing the tetracycline is obviously improved, and the removal efficiency of the tetracycline is obviously improved.
(3) The preparation method of the invention has simple operation, low production cost and obvious environmental and economic benefits.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below.
FIG. 1 is a block flow diagram of the process for the preparation of biomass activated carbon for tetracycline removal of the present invention;
FIG. 2 is a nitrogen adsorption/desorption curve of the pine cone activated carbon of examples 1 to 3 and comparative example 1.
Detailed Description
The invention provides a preparation method of biomass activated carbon for removing tetracycline, which comprises the following steps:
mixing biomass with a potassium hydroxide solution, and preserving heat at a certain temperature; after the heat preservation is finished, activating in protective gas to obtain an activated product;
and sequentially carrying out acid washing, water washing and drying on the activated product to obtain the biomass activated carbon for removing tetracycline.
In the invention, the biomass is pretreated before being mixed with the potassium hydroxide solution; the pretreatment comprises cleaning, drying and crushing.
In the present invention, the particle size of the pulverized biomass is preferably 20 to 40 mesh, more preferably 23 to 35 mesh, and still more preferably 30 mesh.
In the invention, the biomass is preferably one or more of pinecone, pine needle and artificial board, more preferably pinecone or pine needle, and even more preferably pinecone.
In the present invention, the concentration of the potassium hydroxide solution is preferably 4 to 8 wt%, more preferably 4.2 to 7.1 wt%, and still more preferably 5.4 wt%.
In the invention, the mass-volume ratio of the biomass to the potassium hydroxide solution is preferably 1-2 g: 6mL, more preferably 1.1 to 1.9 g: 6mL, more preferably 1.6 g: 6 mL.
In the invention, the heat preservation temperature is preferably 160-300 ℃, more preferably 167-289 ℃, and more preferably 203 ℃; the heat preservation time is preferably 60-120 min, more preferably 76-102 min, and even more preferably 96 min.
In the invention, the activation temperature is preferably 890-930 ℃, more preferably 897-921 ℃, and more preferably 901 ℃; the activation time is preferably 30-90 min, more preferably 36-84 min, and even more preferably 65 min; the heating rate for heating to the activation temperature is preferably 7-12 ℃/min, more preferably 8-11 ℃/min, and even more preferably 10 ℃/min.
In the present invention, the protective gas is preferably nitrogen.
In the present invention, the drying temperature is preferably 100 to 110 ℃, more preferably 103 to 108 ℃, and still more preferably 107 ℃.
The invention also provides the biomass activated carbon for removing tetracycline, which is prepared by the preparation method.
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
This example provides a pinecone activated carbon, as shown in fig. 1, and its preparation method includes the following steps:
(1) cleaning, drying and crushing the pinecone to 20 meshes to obtain a pretreated pinecone;
(2) mixing 6g of pretreated pinecone with 36mL of 4 wt% potassium hydroxide solution, placing the mixture in a reaction kettle, and placing the reaction kettle in a muffle furnace at 160 ℃ for heat preservation treatment for 90min to obtain a mixture subjected to alkali heat treatment;
(3) activating the mixture subjected to the alkali heat treatment in a tubular furnace, wherein the activated protective gas is nitrogen, the temperature is increased to 900 ℃ at the heating rate of 10 ℃/min, and the mixture is activated for 60min at 900 ℃ to obtain an activated product;
(4) and (3) sequentially carrying out acid washing and water washing on the activated product, and drying at 105 ℃ to constant weight to obtain the pinecone activated carbon (marked as AC-1) for removing tetracycline.
Example 2
This example provides a pinecone activated carbon, as shown in fig. 1, and its preparation method includes the following steps:
(1) cleaning, drying and crushing the pinecone to 20 meshes to obtain a pretreated pinecone;
(2) mixing 6g of pretreated pinecone with 36mL of 6 wt% potassium hydroxide solution, placing the mixture in a reaction kettle, and placing the reaction kettle in a muffle furnace at 160 ℃ for heat preservation treatment for 90min to obtain a mixture subjected to alkali heat treatment;
(3) activating the mixture subjected to the alkali heat treatment in a tubular furnace, wherein the activated protective gas is nitrogen, the temperature is increased to 900 ℃ at the heating rate of 10 ℃/min, and the mixture is activated for 60min at 900 ℃ to obtain an activated product;
(4) and (3) sequentially carrying out acid washing and water washing on the activated product, and drying at 105 ℃ to constant weight to obtain the pinecone activated carbon (marked as AC-2) for removing tetracycline.
Example 3
This example provides a pinecone activated carbon, as shown in fig. 1, and its preparation method includes the following steps:
(1) cleaning, drying and crushing the pinecone to 20 meshes to obtain a pretreated pinecone;
(2) mixing 6g of pretreated pinecone with 36mL of 8 wt% potassium hydroxide solution, placing the mixture in a reaction kettle, and placing the reaction kettle in a muffle furnace at 160 ℃ for heat preservation treatment for 90min to obtain an alkali heat treatment mixture;
(3) activating the mixture subjected to the alkali heat treatment in a tubular furnace, wherein the activated protective gas is nitrogen, the temperature is increased to 900 ℃ at the heating rate of 10 ℃/min, and the mixture is activated for 60min at 900 ℃ to obtain an activated product;
(4) and (3) sequentially carrying out acid washing and water washing on the activated product, and drying at 105 ℃ to constant weight to obtain the pinecone activated carbon (marked as AC-3) for removing tetracycline.
Comparative example 1
The comparative example provides a pinecone activated carbon, and the preparation method comprises the following steps:
(1) cleaning, drying and crushing the pinecone to 20 meshes to obtain a pretreated pinecone;
(2) mixing 6g of pretreated pinecone and 12g of potassium hydroxide solid, placing the mixture in a tubular furnace for activation, wherein the activated protective gas is nitrogen, heating to 900 ℃ at the heating rate of 10 ℃/min, and activating for 60min at 900 ℃ to obtain an activated product;
(3) and (3) sequentially carrying out acid washing and water washing on the activated product, and drying at 105 ℃ to constant weight to obtain the pinecone activated carbon (marked as AC-0) for removing tetracycline.
The nitrogen adsorption and desorption measurements of the pinecone activated carbons prepared in examples 1 to 3 and comparative example 1 were carried out, and the results are shown in fig. 2 and table 1.
TABLE 1 pore Structure parameters of pine cone activated carbon
As can be seen from FIG. 2 and Table 1, the specific surface area of AC-1 (1505.26 m)2/g) compared with AC-0(1288.43 m)2The volume of pores (0.41 cm) of AC-1 of 0-1.22 nm is increased by 16.83%3Per g) compared to AC-0(0.37 cm)3The increase in/g) was 10.81%. The alkali consumption for preparing AC-1 is obviously reduced compared with that for preparing AC-0Low (about 88% reduction). In addition, the adsorption rate of 10mgAC-1 to 100mL tetracycline hydrochloride (100ppm) at 60min reaches 99.32%, which is obviously higher than that of AC-0 (81.27%);
specific surface area of AC-2 (1796.52 m)2/g) compared with AC-0(1288.43 m)2The volume of pores of 0 to 1.22nm (0.40 cm) of AC-2 is increased by 39.43 percent3/g) is compared with AC-0(0.37 cm)3The increase in/g) was 8.10%. The amount of base used to prepare AC-2 was significantly reduced (about 82% reduction) compared to the amount of base used to prepare AC-0. In addition, the adsorption rate of 10mg of AC-2 to 100mL of tetracycline hydrochloride (100ppm) at 60min reaches 99.05 percent, which is obviously higher than that of AC-0(81.27 percent);
specific surface area of AC-3 (1588.91 m)2/g) compared with AC-0(1288.43 m)2Increased by 23.32%, and 0-1.22 nm pore volume (0.49 cm) of AC-33/g) is compared with AC-0(0.37 cm)3/g) increase by 32.43%. The amount of base used to prepare AC-3 was significantly reduced (about 76% reduction) compared to the amount of base used to prepare AC-0. In addition, the adsorption rate of 10mg of AC-3 to 100mL of tetracycline hydrochloride (100ppm) at 60min is 99.98%, which is obviously higher than that of AC-0 (81.27%).
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A preparation method of biomass activated carbon for removing tetracycline is characterized by comprising the following steps:
mixing biomass with a potassium hydroxide solution, and preserving heat at a certain temperature; after the heat preservation is finished, activating in protective gas to obtain an activated product;
and sequentially carrying out acid washing, water washing and drying on the activated product to obtain the biomass activated carbon for removing tetracycline.
2. The process for preparing a biomass activated carbon for the removal of tetracycline in claim 1, wherein the biomass is pretreated before mixing with potassium hydroxide solution; the pretreatment comprises cleaning, drying and crushing.
3. The method for preparing a biomass activated carbon for tetracycline elimination as in claim 2, wherein the particle size of the pulverized biomass is 20-40 mesh.
4. The preparation method of the biomass activated carbon for removing tetracycline according to claim 1 or 2, wherein the biomass is one or more of pine cone, pine needle and artificial board.
5. The preparation method of the biomass activated carbon for removing tetracycline as in claim 4, wherein the concentration of the potassium hydroxide solution is 4-8 wt%; the mass volume ratio of the biomass to the potassium hydroxide solution is 1-2 g: 6 mL.
6. The preparation method of the biomass activated carbon for removing tetracycline according to claim 1 or 5, wherein the temperature for heat preservation is 160-300 ℃; the heat preservation time is 60-120 min.
7. The preparation method of the biomass activated carbon for removing tetracycline as in claim 6, wherein the activation temperature is 890-930 ℃; the activation time is 30-90 min.
8. A biomass activated carbon for tetracycline elimination prepared by the process according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210270509.2A CN114534690A (en) | 2022-03-18 | 2022-03-18 | Biomass activated carbon for removing tetracycline and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210270509.2A CN114534690A (en) | 2022-03-18 | 2022-03-18 | Biomass activated carbon for removing tetracycline and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114534690A true CN114534690A (en) | 2022-05-27 |
Family
ID=81663950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210270509.2A Pending CN114534690A (en) | 2022-03-18 | 2022-03-18 | Biomass activated carbon for removing tetracycline and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114534690A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153162A (en) * | 2011-04-29 | 2011-08-17 | 南京大学 | Application of KOH activated active carbon to removing antibiotics in water body through adsorption |
| CN105271227A (en) * | 2015-11-25 | 2016-01-27 | 江苏大学 | Preparation method for porous carbon material with high specific surface area |
| CN106000298A (en) * | 2016-05-18 | 2016-10-12 | 大连理工大学 | Method for preparing KOH-based modified walnut shell biomass hydrothermal carbon |
| CN106517183A (en) * | 2016-11-15 | 2017-03-22 | 河南理工大学 | A low-cost simple preparing method for nitrogen-doped porous charcoal with a high specific surface area |
| CN107021483A (en) * | 2017-05-31 | 2017-08-08 | 宁夏大学 | A kind of method based on biomass by hydro-thermal synthesizing flaky porous carbon |
| CN109081340A (en) * | 2018-09-19 | 2018-12-25 | 中南大学 | A kind of pine tree based biomass active carbon and preparation method thereof and the application in electrochemical energy storage |
| CN110002446A (en) * | 2019-01-24 | 2019-07-12 | 华中科技大学 | A kind of method and product preparing active carbon using biomass castoff |
| CN110002442A (en) * | 2019-01-24 | 2019-07-12 | 华中科技大学 | A kind of active carbon and preparation method thereof with high-specific surface area |
| CN110060881A (en) * | 2019-04-28 | 2019-07-26 | 常州大学 | A kind of preparation method of water system high capacity electrode material for super capacitor |
| CN111232978A (en) * | 2020-03-26 | 2020-06-05 | 南京林业大学 | Method for preparing high-yield activated carbon by grouping and separating shell biomass |
| US20200276556A1 (en) * | 2019-03-01 | 2020-09-03 | NOVOREACH Technologies LLC | Composite adsorbents and method of making them |
| CN113233462A (en) * | 2021-03-15 | 2021-08-10 | 河南省冶金研究所有限责任公司 | Preparation method of lignite-based activated carbon with high specific surface area |
| CN113233460A (en) * | 2021-03-31 | 2021-08-10 | 南京林业大学 | Method for hydrothermal-assisted production of lignin activated carbon with high specific surface area |
-
2022
- 2022-03-18 CN CN202210270509.2A patent/CN114534690A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153162A (en) * | 2011-04-29 | 2011-08-17 | 南京大学 | Application of KOH activated active carbon to removing antibiotics in water body through adsorption |
| CN105271227A (en) * | 2015-11-25 | 2016-01-27 | 江苏大学 | Preparation method for porous carbon material with high specific surface area |
| CN106000298A (en) * | 2016-05-18 | 2016-10-12 | 大连理工大学 | Method for preparing KOH-based modified walnut shell biomass hydrothermal carbon |
| CN106517183A (en) * | 2016-11-15 | 2017-03-22 | 河南理工大学 | A low-cost simple preparing method for nitrogen-doped porous charcoal with a high specific surface area |
| CN107021483A (en) * | 2017-05-31 | 2017-08-08 | 宁夏大学 | A kind of method based on biomass by hydro-thermal synthesizing flaky porous carbon |
| CN109081340A (en) * | 2018-09-19 | 2018-12-25 | 中南大学 | A kind of pine tree based biomass active carbon and preparation method thereof and the application in electrochemical energy storage |
| CN110002446A (en) * | 2019-01-24 | 2019-07-12 | 华中科技大学 | A kind of method and product preparing active carbon using biomass castoff |
| CN110002442A (en) * | 2019-01-24 | 2019-07-12 | 华中科技大学 | A kind of active carbon and preparation method thereof with high-specific surface area |
| US20200276556A1 (en) * | 2019-03-01 | 2020-09-03 | NOVOREACH Technologies LLC | Composite adsorbents and method of making them |
| CN110060881A (en) * | 2019-04-28 | 2019-07-26 | 常州大学 | A kind of preparation method of water system high capacity electrode material for super capacitor |
| CN111232978A (en) * | 2020-03-26 | 2020-06-05 | 南京林业大学 | Method for preparing high-yield activated carbon by grouping and separating shell biomass |
| CN113233462A (en) * | 2021-03-15 | 2021-08-10 | 河南省冶金研究所有限责任公司 | Preparation method of lignite-based activated carbon with high specific surface area |
| CN113233460A (en) * | 2021-03-31 | 2021-08-10 | 南京林业大学 | Method for hydrothermal-assisted production of lignin activated carbon with high specific surface area |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104289179B (en) | Method for preparing attapulgite/carbon composite adsorbent by one-step carbonization-activation | |
| CN102107863B (en) | Porous carbon material and preparation method thereof | |
| CN109264716B (en) | Easily-controlled preparation process of biomass framework carbon with micropore-mesopore structure and high specific surface area | |
| CN110935280B (en) | Nitrogen-doped mesoporous bamboo-based biochar and application thereof | |
| JP2013539411A (en) | Multi-aperture carbon particle air purifier and method for producing the same | |
| CN106914218B (en) | A kind of high-performance edible fungi residue active carbon and preparation method thereof | |
| CN104437432B (en) | A kind of finely dispersed activated carbon kieselguhr air purifying particles and preparation method thereof | |
| CN113198418B (en) | Method for preparing efficient phosphorus removal activated carbon by using edible fungus residues | |
| CN107626280A (en) | Charcoal base heavy metal absorbent, preparation method and applications | |
| CN109569519A (en) | The method for preparing active sludge carbon base formaldehyde adsorbent using municipal sludge | |
| CN104495841A (en) | Preparation method of walnut shell-doped sludge activated carbon | |
| CN106185929A (en) | A kind of preparation method of the activated carbon with flourishing pore structure | |
| CN112194131A (en) | Method for preparing papermaking sludge carbonaceous adsorbent by chemical activation method and application | |
| CN112111211A (en) | Environment-friendly coating | |
| CN111729654A (en) | Preparation method and application of modified pagodatree leaf biochar | |
| CN113000041B (en) | Regeneration method of waste activated carbon by using biomass | |
| CN107285311B (en) | Method for preparing mesoporous bamboo activated carbon through physical activation | |
| CN102363118A (en) | Method and adsorbent for removing heavy metal lead in aquatic product flavoring | |
| CN114534690A (en) | Biomass activated carbon for removing tetracycline and preparation method thereof | |
| CN111530436A (en) | Method for modifying shells | |
| CN115337917B (en) | Preparation method of selenium-rich modified biochar for adsorbing cadmium | |
| CN111604029A (en) | Modified activated carbon composite material and preparation method thereof | |
| CN116474748A (en) | Modified biochar and application thereof in cadmium and arsenic polluted soil | |
| CN114804100B (en) | Porous carbon with ultrahigh specific surface area and preparation method thereof | |
| CN110817869A (en) | Zinc phosphate-organic acid composite activator and method for preparing activated carbon by using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |