CN113184847A - Porous carbon material and preparation method and application thereof - Google Patents

Porous carbon material and preparation method and application thereof Download PDF

Info

Publication number
CN113184847A
CN113184847A CN202110407823.6A CN202110407823A CN113184847A CN 113184847 A CN113184847 A CN 113184847A CN 202110407823 A CN202110407823 A CN 202110407823A CN 113184847 A CN113184847 A CN 113184847A
Authority
CN
China
Prior art keywords
carbon material
porous carbon
parts
hsc
material according
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
Application number
CN202110407823.6A
Other languages
Chinese (zh)
Inventor
王晓婷
何峥辉
朱博文
蒯乐
张书海
韦一
余谟鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui University of Technology AHUT
Original Assignee
Anhui University of Technology AHUT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui University of Technology AHUT filed Critical Anhui University of Technology AHUT
Priority to CN202110407823.6A priority Critical patent/CN113184847A/en
Publication of CN113184847A publication Critical patent/CN113184847A/en
Pending legal-status Critical Current

Links

Images

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
    • C01B32/30—Active carbon
    • C01B32/312—Preparation
    • C01B32/342—Preparation characterised by non-gaseous activating agents
    • C01B32/348—Metallic compounds
    • 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
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28057—Surface area, e.g. B.E.T specific surface area
    • B01J20/28064—Surface area, e.g. B.E.T specific surface area being in the range 500-1000 m2/g
    • 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
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28057—Surface area, e.g. B.E.T specific surface area
    • B01J20/28066—Surface area, e.g. B.E.T specific surface area being more than 1000 m2/g
    • 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
    • C01B32/33—Preparation characterised by the starting materials from distillation residues of coal or petroleum; from petroleum acid sludge
    • 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
    • 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
    • C02F2101/345—Phenols

Abstract

The invention provides a porous carbon material and a preparation method and application thereof, wherein the porous carbon material comprises the following components in parts by weight: 1-4 parts of coal tar pitch; 5-30 parts of magnesium oxide; 10-30 parts of an activating agent. The technical scheme of the invention can solve the problem that no specific adsorption material adsorbs phenolic pollutants in water in the prior art.

Description

Porous carbon material and preparation method and application thereof
Technical Field
The invention relates to the technical field of carbon materials, in particular to a porous carbon material and a preparation method and application thereof.
Background
With continuous innovation and improvement of water treatment technology, certain achievements are achieved in the aspect of sewage treatment work, but due to the updating of production products, the material composition of product production, the change of manufacturing treatment technology and workshop management level and different requirements, ammonia nitrogen, sulfide, cod and other pollutants in discharged water of most enterprises have a lot of overproof conditions. Current treatment methods for treating organic-containing wastewater are classified into physical methods, chemical methods, biological methods, and biochemical methods.
At present, a common physical treatment method for organic pollution is an adsorption method, and activated carbon is adopted for adsorption, but the existing adsorption carbon material has the advantages of small specific surface area, limited adsorption effect and no specific adsorption material for phenolic pollutants in water.
Disclosure of Invention
The invention provides a porous carbon material and a preparation method and application thereof, which are used for solving the problem that no specific adsorption material adsorbs phenolic pollutants in water in the prior art.
In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:
a porous carbon material comprises the following components in parts by weight:
1-4 parts of coal tar pitch; 5-30 parts of magnesium oxide; 10-30 parts of an activating agent.
Optionally, the composition comprises the following components in parts by weight:
2 parts of coal tar pitch; 15 parts of magnesium oxide; 20 parts of an activating agent.
Optionally, the composition comprises the following components in parts by weight:
2 parts of coal tar pitch; 5 parts of magnesium oxide; 10 parts of an activating agent.
Optionally, the activator is potassium hydroxide.
Optionally, the specific surface area of the porous carbon material is 737.61-2553.65 m2/g, the total pore volume is 0.85-2.82 cm3/g, the average pore diameter is 3.86-4.43 nm, and the pore size distribution is 0-6 nm.
Optionally, the surface of the porous carbon material comprises-NH 2, -OH, -COOH.
The embodiment of the invention also provides a preparation method of the porous carbon material, which comprises the following steps:
(1) mixing raw materials: uniformly mixing coal tar pitch, magnesium oxide and an activating agent to obtain a mixture;
(2) preparing reactants: placing the porcelain boat filled with the mixture in the middle of a tube furnace, opening a gas cylinder, introducing nitrogen, exhausting air in the tube furnace, heating to a set temperature at a constant speed, and keeping the set temperature for 2 hours to obtain a reactant;
(3) preparing a porous carbon material: and grinding the reactant and adjusting the pH to obtain the porous carbon material.
Optionally, in step (2):
the nitrogen is introduced at a set flow rate of 45mL/min and heated to 700-900 ℃ at a rate of 5 ℃/min.
Optionally, in step (3):
grinding and crushing the reactants and placing the reactants in a beaker;
adding hydrochloric acid into the beaker, and adjusting the crushed reactant to be acidic;
the acidic reaction was filtered with distilled water and the pH was adjusted to neutral.
The embodiment of the invention also provides application of the porous carbon material in adsorbing phenolic pollutants in water.
The embodiment of the invention has the following technical effects:
according to the technical scheme, coal pitch is used as a carbon source, nanoscale MgO is used as a hard template, an activating agent is KOH, the coal pitch base is heated and fired by using a template method under conventional conditions to obtain the porous carbon with high specific surface area, the nanoscale MgO is used as the hard template, the carbon source is attached to a large number of specific columns, the number of surface holes obtained by firing is large after etching treatment by the activating agent, the specific surface area is greatly improved, the maximum specific surface area of the prepared porous carbon is 2553m2/g, and the adsorption effect of the prepared porous carbon on water phenol pollutants is greatly improved by using the prepared porous carbon as an adsorbent.
Drawings
FIG. 1 is a diagram of HSC prepared by the present invention4-30-700Transmission electron microscopy images of;
FIG. 2 is a diagram of HSC prepared by the present invention4-30-800Transmission electron microscopy images of;
FIG. 3 shows HSCs prepared by the present invention4-30-900Transmission electron microscopy images of;
FIG. 4 is a HSC prepared by the present invention4-30-700Scanning electron microscope images of;
FIG. 5 is a HSC prepared by the present invention4-30-800Scanning electron microscope images of;
FIG. 6 is a HSC prepared by the present invention4-30-900Scanning electron microscope images of;
FIG. 7 shows a high specific surface area carbon material HSC4-30-700、HSC4-30-800、HSC4-30-900The nitrogen adsorption and desorption curve diagram;
FIG. 8 is a high specific surface area carbon material HSC4-30-700、HSC4-30-800、HSC4-30-900Pore size distribution plot of (a);
FIG. 9 is a high specific surface area carbon material HSC4-30-700、HSC4-30-800、HSC4-30-900Adsorption isotherm of phenol at a concentration of 10mg/L to 50 mg/L;
FIG. 10 is a high specific surface area carbon material HSC4-30-700、HSC4-30-800、HSC4-30-900For phenol adsorption kinetics plots;
FIG. 11 is a high specific surface area carbon material HSC4-30-700、HSC4-30-800、HSC4-30-900Langmuir fit plot for phenol adsorption isotherms;
FIG. 12 is a high specific surface area carbon material HSC4-30-700、HSC4-30-800、HSC4-30-900Secondary power simulation for phenol adsorptionAnd (6) drawing.
Detailed Description
The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application for the understanding of the same, which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Example 1
The embodiment of the invention provides a porous carbon material which comprises the following components in parts by weight:
1 part of coal tar pitch; 5 parts of magnesium oxide; 10 parts of potassium hydroxide.
Example 2
The embodiment of the invention provides a porous carbon material which comprises the following components in parts by weight:
2 parts of coal tar pitch; 15 parts of magnesium oxide; and 20 parts of potassium hydroxide.
Example 3
The embodiment of the invention provides a porous carbon material which comprises the following components in parts by weight:
2 parts of coal tar pitch; 5 parts of magnesium oxide; 10 parts of potassium hydroxide.
Example 4
The embodiment of the invention provides a porous carbon material which comprises the following components in parts by weight:
4 parts of coal tar pitch; 30 parts of magnesium oxide; 30 parts of potassium hydroxide.
Example 5
The specific surface area of the porous carbon material is 737.61-2553.65 m2/g, the total pore volume is 0.85-2.82 cm3/g, the average pore diameter is 3.86-4.43 nm, and the pore size distribution is 0-6 nm.
Example 6
The surface of the porous carbon material comprises-NH 2, -OH, -COOH.
According to the technical scheme, the porous carbon material is high in specific surface area utilization rate, multiple in chemical adsorption sites and good in adsorption performance.
Example 7
The embodiment of the invention also provides a preparation method of the porous carbon material, which comprises the following steps:
(1) weighing 4g of powdered coal tar pitch and 10g of granular nano MgO;
(2) weighing 20g of KOH, and stirring the three substances in a grinder for 10min to mix uniformly;
(3) placing the porcelain boat filled with the reactants which are mixed uniformly in the middle of the tube furnace, opening the gas cylinder, introducing nitrogen gas, setting the flow rate to be 45mL/min, introducing nitrogen gas for 5 minutes to exhaust the air in the tube furnace, setting a program by adopting a conventional heating mode, heating to 700 ℃ at the speed of 5 ℃/min, and finally keeping the final temperature for 2 hours. After the reaction is finished, turning off the power supply for about 5 hours to naturally cool the product to room temperature, and then turning off the nitrogen gas and taking out;
(4) taking the obtained product out of the tubular furnace, grinding and crushing the product, putting the ground product into a 1000mL beaker, adjusting the ground product to be acidic by using hydrochloric acid, and carrying out suction filtration by using distilled water until the pH test paper is neutral;
(5) after washing with water, the sample was placed in a beaker and dried in an air-blown drying oven at 100 ℃ for 1 hour. And finally, recording the microporous carbon with high specific surface area obtained by the quality.
Example 8
The embodiment of the invention also provides a preparation method of the porous carbon material, which comprises the following steps:
(1) weighing 4g of powdered coal tar pitch and 20g of granular nano MgO;
(2) weighing 20g of KOH3, and stirring the three substances in a grinder for 10min to mix uniformly;
(3) placing the porcelain boat filled with the reactants which are mixed uniformly in the middle of the tube furnace, opening the gas cylinder, introducing nitrogen gas, setting the flow rate to be 45mL/min, introducing nitrogen gas for 5 minutes to exhaust the air in the tube furnace, setting a program by adopting a conventional heating mode, heating to 800 ℃ at the speed of 5 ℃/min, and finally keeping the final temperature for 2 hours. After the reaction is finished, turning off the power supply for about 5 hours to naturally cool the product to room temperature, and then turning off the nitrogen gas and taking out;
(4) taking the obtained product out of the tubular furnace, grinding and crushing the product, putting the ground product into a 1000mL beaker, adjusting the ground product to be acidic by using hydrochloric acid, and carrying out suction filtration by using distilled water until the pH test paper is neutral;
(5) after washing with water, the sample was placed in a beaker and dried in an air-blown drying oven at 100 ℃ for 1 hour. And finally, recording the microporous carbon with high specific surface area obtained by the quality.
Example 9
The embodiment of the invention also provides a preparation method of the porous carbon material, which comprises the following steps:
(1) weighing 4g of powdered coal tar pitch and 30g of granular nano MgO;
(2) weighing 20g of KOH, and stirring the three substances in a grinder for 10min to mix uniformly;
(3) placing the porcelain boat filled with the reactants which are mixed uniformly in the middle of the tube furnace, opening the gas cylinder, introducing nitrogen gas, setting the flow rate to be 45mL/min, introducing nitrogen gas for 5 minutes to exhaust the air in the tube furnace, setting a program by adopting a conventional heating mode, heating to 900 ℃ at the speed of 5 ℃/min, and finally keeping the final temperature for 2 hours. After the reaction is finished, turning off the power supply for about 5 hours to naturally cool the product to room temperature, and then turning off the nitrogen gas and taking out;
(4) taking the obtained product out of the tubular furnace, grinding and crushing the product, putting the ground product into a 1000mL beaker, adjusting the ground product to be acidic by using hydrochloric acid, and carrying out suction filtration by using distilled water until the pH test paper is neutral;
(5) after washing with water, the sample was placed in a beaker and dried in an air-blown drying oven at 100 ℃ for 1 hour. And finally, recording the microporous carbon with high specific surface area obtained by the quality.
Example 10
The embodiment of the invention also provides application of the porous carbon material in adsorbing phenolic pollutants in water.
According to the technical scheme, the prepared high-specific-surface-area porous carbon material for adsorbing phenolic pollutants in water contains more O elements and N elements, the O elements can change the surface chemical properties of the carbon material, the wettability of the material is improved, phenolic molecules can easily penetrate into pores, the effective specific surface area of the prepared carbon material is increased, and meanwhile, the O elements and the N elements can provide chemical adsorption sites, so that the adsorption performance is better.
Specifically, the carbon material with a high specific surface area obtained in example 7 was designated as HSC4-30-700The carbon material with a high specific surface area obtained in example 8 was designated as HSC4-30-800The carbon material with a high specific surface area obtained in example 9 was designated as HSC4-30-900。
As shown in FIGS. 1-6, are HSC, respectively4-30-700、HSC4-30-800、HSC4-30-900Transmission electron microscope images and scanning electron microscope images.
For HSC4-30-700、HSC4-30-800、HSC4-30-900Adsorption characterization for phenolic contaminants:
(one) separately testing HSC4-30-700、HSC4-30-800、HSC4-30-900The nitrogen adsorption/desorption performance, pore size distribution, and pore structure parameter of (a) are shown in fig. 7, which is a nitrogen adsorption/desorption performance curve, and in fig. 8, which is a pore size distribution diagram, and table 1 shows the pore structure parameter.
TABLE 1 HSC4-30-700、HSC4-30-800、HSC4-30-900Pore structure parameter table
Figure BDA0003022985410000061
Wherein dap (nm) represents the average pore diameter in nm; SBET (m)2The specific surface area is expressed in m2/g；Smic(m2The specific surface area of the micropores is expressed in m2/g；Vt(cm3,/g) represents the total pore volume in cm3/g；Vmic(cm3The volume of pores in the unit of cm is expressed as the volume of pores in the micropores3/g。
As shown in FIG. 7, is HSC4-30-700、HSC4-30-800、HSC4-30-900The nitrogen adsorption and desorption and the aperture distribution diagram are shown in the figure, the hysteresis ring can be observed in three isotherms, and the three isotherms can be judged to beType IV isotherms of the pair N2The adsorption amount of (a) rapidly increased, indicating that the three carbons contained a large number of micropores. HSC at a relative pressure of 0.1-0.44-30-800And HSC4-30-900To N2The amount of adsorption of (a) slowly increases with increasing pressure, indicating that both carbons contain small mesopores of less than 3.5 nm.
As shown in FIG. 7, HSC4-30-700、HSC4-30-800、HSC4-30-900Having a large number of micropores and a small number of mesopores, and HSC4-30-700And HSC4-30-800The pore diameter of the micropores is between 1 and 2 nm.
As can be seen from Table 1, the sample carbons prepared were predominantly microporous, but also contained some mesopores. When the temperature increases, HSC4-30-700、HSC4-30-800、HSC4-30-900The surface area of (a) is rapidly increased and the total pore volume is also rapidly increased, while the non-microporosity ratio is substantially unchanged, and when the mass of the template to the mass of the carbon source is 2:15, the maximum value of the specific surface area of the microporous carbon material is 2553m at 900 degrees centigrade2Per g, pore volume of 2.82cm3In terms of/g, the mean pore diameter is 4.43 nm. The above shows that the temperature has an important influence on the specific surface area of the carbon material but a greater influence on the proportion of non-micropores in the activation of the carbon material preparation, HSC4-30-700、HSC4-30-800、HSC4-30-900Has a relatively large specific surface area and a moderate average pore size.
As can be seen from Table 2, HSC, a carbon material having a high specific surface area4-30-900The content of C element is 92.99 percent, the content of N element is 1.18 percent, and the content of O element is 5.83 percent; wherein the content of C ═ O in the O element is 3.20%, the content of C-OH is 1.46%, and the content of COOH is 1.17%.
TABLE 2 elemental table of high specific surface area carbon materials
Figure BDA0003022985410000071
For carbon material HSC with high specific surface area4-30-700、HSC4-30-800、HSC4-30-900And respectively carrying out phenol solution adsorption performance tests.
1. Performing an adsorption performance test on the phenol solution, and performing an adsorption isotherm test on a series of solutions with different concentrations (10, 20, 30, 40 and 50mg/L) for 24h, as shown in FIG. 9, to obtain an adsorption isotherm diagram of the carbon material with a high specific surface area; preparing a solution with a concentration of about 30mg/L, selecting different time points (10min, 30min, 60min, 120min, 240min, 480min, 650min and 750min) for sampling, and performing adsorption kinetics test as shown in FIG. 10; langmuir fitting was performed on the resulting adsorption isotherm experimental data as shown in fig. 11; the resulting adsorption kinetics experimental data were subjected to pseudo-second order kinetics as shown in fig. 12.
TABLE 3 adsorption data of carbon material with high specific surface area
Figure BDA0003022985410000072
Wherein q ismRepresents the adsorption amount per unit mass of the adsorbent, mg/g; kLDenotes the surface adsorption affinity constant, L/mg, qeRepresents the adsorption amount per unit mass of the adsorbent, mg/g; k is a radical of2Represents the pseudo-second order adsorption rate constant, g/(mg.min), K2The larger the adsorption rate, the faster the adsorption rate; r2Representing the correlation coefficient of the data.
As can be seen from Table 3, HSC4-30-700、HSC4-30-800、HSC4-30-900The adsorption capacity of the high-specific surface area carbon material is 386-442 mg/g; and with the increase of the preparation temperature, the adsorption amount of the carbon material with high specific surface area is continuously increased, and HSC4-30-900The adsorption amount of (2) is the largest.
As shown in FIG. 6, with HSC4-30-900The scanning electron microscope of (2) for analysis.
Known as HSC4-30-900The porous carbon has a large number of microporous structures, the shape of the pores is good, the pore walls are thin, and the pore diameters are mostly 1-2 mu m, so that the adsorption sites and the specific surface area of the carbon material with high specific surface area can be improved, and the adsorption performance of the carbon material can be improved.
The above detailed description should not be construed as limiting the scope of the disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.

Claims (10)

1. The porous carbon material is characterized by comprising the following components in parts by weight:
1-4 parts of coal tar pitch; 5-30 parts of magnesium oxide; 10-30 parts of an activating agent.
2. The porous carbon material according to claim 1, comprising the following components in parts by weight:
2 parts of coal tar pitch; 15 parts of magnesium oxide; 20 parts of an activating agent.
3. The porous carbon material according to claim 2, comprising the following components in parts by weight:
2 parts of coal tar pitch; 5 parts of magnesium oxide; 10 parts of an activating agent.
4. The porous carbon material of claim 3, wherein the activator is potassium hydroxide.
5. The porous carbon material according to claim 4, wherein the porous carbon material has a specific surface area of 737.61-2553.65 m2/g, a total pore volume of 0.85-2.82 cm3/g, an average pore diameter of 3.86-4.43 nm, and a pore size distribution of 0-6 nm.
6. The porous carbon material of claim 5, wherein the surface of the porous carbon material comprises-NH 2, -OH, -COOH.
7. A method for preparing a porous carbon material according to any one of claims 1 to 6, comprising the steps of:
(1) mixing raw materials: uniformly mixing coal tar pitch, magnesium oxide and an activating agent to obtain a mixture;
(2) preparing reactants: placing the porcelain boat filled with the mixture in the middle of a tube furnace, opening a gas cylinder, introducing nitrogen, exhausting air in the tube furnace, heating to a set temperature at a constant speed, and keeping the set temperature for 2 hours to obtain a reactant;
(3) preparing a porous carbon material: and grinding the reactant and adjusting the pH to obtain the porous carbon material.
8. The method for preparing a porous carbon material according to claim 7, wherein in the step (2):
the nitrogen is introduced at a set flow rate of 45mL/min and heated to 700-900 ℃ at a rate of 5 ℃/min.
9. The method for preparing a porous carbon material according to claim 7, wherein in the step (3):
grinding and crushing the reactants and placing the reactants in a beaker;
adding hydrochloric acid into the beaker, and adjusting the crushed reactant to be acidic;
the acidic reaction was filtered with distilled water and the pH was adjusted to neutral.
10. Use of a porous carbon material according to any one of claims 1 to 6 for adsorbing phenolic contaminants in water.
CN202110407823.6A 2021-04-15 2021-04-15 Porous carbon material and preparation method and application thereof Pending CN113184847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110407823.6A CN113184847A (en) 2021-04-15 2021-04-15 Porous carbon material and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110407823.6A CN113184847A (en) 2021-04-15 2021-04-15 Porous carbon material and preparation method and application thereof

Publications (1)

Publication Number Publication Date
CN113184847A true CN113184847A (en) 2021-07-30

Family

ID=76977092

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110407823.6A Pending CN113184847A (en) 2021-04-15 2021-04-15 Porous carbon material and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN113184847A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110318254A1 (en) * 2009-03-10 2011-12-29 Toyo Tanso Co., Ltd. Porous carbon and method of manufacturing same
CN102431992A (en) * 2011-09-22 2012-05-02 安徽工业大学 Method for preparing porous carbon material by using magnesium oxide template in cooperation with activation of potassium hydroxide
CN103787327A (en) * 2014-03-06 2014-05-14 安徽工业大学 One-step preparation method of hollow spherical porous graphite for supercapacitor
CN108126677A (en) * 2017-12-28 2018-06-08 安徽工业大学 A kind of preparation method of carbon composite for Acid Dye Wastewater processing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110318254A1 (en) * 2009-03-10 2011-12-29 Toyo Tanso Co., Ltd. Porous carbon and method of manufacturing same
CN102431992A (en) * 2011-09-22 2012-05-02 安徽工业大学 Method for preparing porous carbon material by using magnesium oxide template in cooperation with activation of potassium hydroxide
CN103787327A (en) * 2014-03-06 2014-05-14 安徽工业大学 One-step preparation method of hollow spherical porous graphite for supercapacitor
CN108126677A (en) * 2017-12-28 2018-06-08 安徽工业大学 A kind of preparation method of carbon composite for Acid Dye Wastewater processing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张丽: "沥青基多孔炭的制备及其对染料吸附性能的研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 *

Similar Documents

Publication Publication Date Title
Mopoung et al. Characterization and properties of activated carbon prepared from tamarind seeds by KOH activation for Fe (III) adsorption from aqueous solution
Chen et al. CO 2 adsorption on crab shell derived activated carbons: contribution of micropores and nitrogen-containing groups
Wang et al. Preparation of sludge-based activated carbon and its application in dye wastewater treatment
Liu et al. Ultra-high adsorption of tetracycline antibiotics on garlic skin-derived porous biomass carbon with high surface area
Gergova et al. A comparison of adsorption characteristics of various activated carbons
Obregón-Valencia et al. Comparative cadmium adsorption study on activated carbon prepared from aguaje (Mauritia flexuosa) and olive fruit stones (Olea europaea L.)
Chen et al. Template-free and fast one-step synthesis from enzymatic hydrolysis lignin to hierarchical porous carbon for CO2 capture
Gao et al. Hierarchical porous carbon activated by CaCO3 from pigskin collagen for CO2 and H2 adsorption
Özçimen et al. Adsorption of copper (II) ions onto hazelnut shell and apricot stone activated carbons
CN113683089B (en) Layered porous biochar and preparation method and application thereof
Rahman et al. Waste palm shell converted to high efficient activated carbon by chemical activation method and its adsorption capacity tested by water filtration
CN109967033A (en) A kind of modified rice husk biomass carbon and preparation method thereof
Huang et al. Adsorption of CO2 on chitosan modified CMK-3 at ambient temperature
RU2436625C1 (en) Method to produce carbon adsorbent
Ma et al. Preparation of high-performance activated carbons using bamboo through one-step pyrolysis
Yue et al. Preparation and characterization of NaOH-activated carbons from phenolic resin
Yu et al. Single and bicomponent anionic dyes adsorption equilibrium studies on magnolia-leaf-based porous carbons
Baghel et al. Preparation and characterization of active carbon spheres prepared by chemical activation
Cong et al. Study on the adsorption characteristics of Congo red by sycamore bark activated carbon
Joshi et al. Synthesis and characterization of sugarcane bagasse based activated carbon: effect of impregnation ratio of zncl2
CN113184847A (en) Porous carbon material and preparation method and application thereof
CN109133195B (en) Biomass porous carbon material doped with bimetallic oxide, preparation method thereof and application of biomass porous carbon material in dye adsorption
Xu et al. Carbon molecular sieves from soybean straw-based activated carbon for CO 2/CH 4 separation
CN112774629B (en) Corn-based biomass porous carbon and method for removing methylene blue in printing and dyeing wastewater by using same
CN108862277A (en) Rice husk-sludge base composite activated carbon and preparation method thereof

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20210730

RJ01 Rejection of invention patent application after publication