Composite honeycomb activated carbon adsorption material and preparation method thereof

Abstract

The invention relates to a composite honeycomb activated carbon adsorption material and a preparation method thereof, and belongs to the technical field of activated carbon, and the composite honeycomb activated carbon adsorption material comprises the following raw materials: composite modified activated carbon, a binder, a polytetrafluoroethylene emulsion and deionized water. Manganese acetate, zirconium tetrachloride and copper acetate are added in the process of preparing the composite modified activated carbon, three elements of manganese, zirconium and copper are introduced to achieve a synergistic effect, meanwhile, a 2-imidazolone aqueous solution is added to introduce a nitrogen-containing functional group with high electronegativity, a sodium para aminobenzoate aqueous solution is added to introduce an amino functional group, and the composite modified activated carbon is prepared. And formaldehyde can be effectively adsorbed and removed, so that the prepared composite honeycomb activated carbon adsorption material finished product has excellent formaldehyde adsorption and purification performance.

Description

Technical Field

[0001] The present invention belongs to the technical field of activated carbon, and in particular relates to a composite honeycomb activated carbon adsorption material and a preparation method thereof. Background Art

[0002] Formaldehyde, a common indoor air pollutant, is highly irritating, and long-term exposure can cause serious harm to human health. Therefore, efficient formaldehyde removal has become an important research direction in the field of air purification. Activated carbon is often used as an adsorption material due to its large specific surface area and rich pore structure. However, traditional activated carbon has obvious limitations in its adsorption of formaldehyde. On the one hand, the pore structure of ordinary activated carbon is relatively simple, mostly microporous, and the adsorption of small molecule pollutants such as formaldehyde mainly relies on intermolecular forces, resulting in poor adsorption selectivity. In addition, the adsorption process is easily affected by factors such as ambient humidity and temperature, resulting in limited adsorption capacity and a short-term purification effect. On the other hand, activated carbon lacks chemically active sites, and its adsorption of formaldehyde is mostly physical adsorption, which makes it difficult to completely decompose formaldehyde into harmless substances. After adsorption saturation, formaldehyde molecules are easily released back into the environment, causing secondary pollution.

[0003] These problems make it difficult for existing activated carbon materials to meet actual needs in formaldehyde purification applications. Therefore, developing a composite honeycomb activated carbon adsorption material with the ability to adsorb and purify formaldehyde to overcome the shortcomings of existing activated carbon adsorption materials has become a key issue that needs to be solved urgently. Summary of the Invention

[0004] The purpose of the present invention is to provide a composite honeycomb activated carbon adsorption material and a preparation method thereof, which solves the problem of poor formaldehyde adsorption and purification performance of activated carbon in the prior art.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] In one aspect, the present application provides a composite honeycomb activated carbon adsorption material, comprising the following raw materials in parts by weight:

[0007] 100 parts by weight of composite modified activated carbon, 4-5 parts by weight of binder, 26-28 parts by weight of polytetrafluoroethylene emulsion, and 6-8 parts by weight of deionized water.

[0008] As a preferred technical solution of the present invention, the binder includes at least one of carboxymethyl cellulose and methyl cellulose.

[0009] As a preferred technical solution of the present invention, the preparation method of the composite modified activated carbon comprises the following steps:

[0010] S1. Mix manganese acetate, copper acetate, zirconium tetrachloride and deionized water, perform ultrasonic treatment, perform temperature-controlled hydrothermal treatment, cool to room temperature, centrifuge, wash, temperature-controlled dry, grind, and sieve to obtain an oxidized mixture, which is then set aside.

[0011] S2, the powdered activated carbon was temperature-controlled and dried, KH550 ethanol solution was added and ultrasonicated, and then temperature-controlled and stirred, washed, and temperature-controlled and dried to obtain intermediate material A, and the intermediate material A, the oxidized mixed material and the ethanol solution were mixed and ultrasonicated, stirred in a temperature-controlled water bath, centrifuged, washed, and then temperature-controlled and dried, ground, and sieved to obtain intermediate material B;

[0012] S3. Add the intermediate material B into the 2-imidazolone aqueous solution for immersion, centrifuge, wash, control the temperature and dry, then add the sodium p-aminobenzoate aqueous solution, stir and ultrasonicate, then control the temperature and stir in a water bath, rotary evaporate and dry, grind and sieve to obtain the composite modified activated carbon.

[0013] As a preferred technical solution of the present invention, the mass ratio of manganese acetate, copper acetate and zirconium tetrachloride in step S1 is 2-2.4:1-1.2:1; and the total molar concentration of manganese acetate, copper acetate and zirconium tetrachloride in deionized water is 1-1.5 mol / L.

[0014] This is a preferred technical solution of the present invention, wherein the ultrasonic time in step S1 is 20-30 minutes; the temperature of the temperature-controlled hydrothermal treatment is 145-150°C, and the time is 6-8 hours; the washing is 2-3 times of deionized water washing; the temperature of the temperature-controlled drying is 70-80°C, and the time is 24-26 hours; and the screening is through a 200-250 mesh sieve.

[0015] As a preferred technical solution of the present invention, the powdered activated carbon in step S2 includes coconut shell activated carbon; and the iodine value of the powdered activated carbon is not less than 600 mg / L.

[0016] As a preferred technical solution of the present invention, the dosage ratio of the powder active and KH550 ethanol solution in step S2 is 1-1.5 g:50-65 mL; the mass ratio of the intermediate material A, the oxidized mixture and the ethanol solution is 2-2.5:1:30-35.

[0017] Furthermore, the KH550 ethanol solution is 2-3 wt %, and the ethanol solution is 90-95 wt %.

[0018] As a preferred technical solution of the present invention, the temperature of the temperature-controlled drying in step S2 is 70-80°C, and the time is 12-14h; the time of the ultrasonication is 10-15min; the temperature of the temperature-controlled stirring is 55-60°C, and the time is 2-3h; the washing is 3-5 times with deionized water; the temperature of the temperature-controlled water bath stirring is 60-65°C, and the time is 2-3h; and the screening is through a 200-250 mesh sieve.

[0019] As a preferred technical solution of the present invention, the mass ratio of the intermediate material B, 2-imidazolone aqueous solution, and sodium p-aminobenzoate aqueous solution in step S3 is 1:1.2-1.8:0.5-0.8.

[0020] Furthermore, the 2-imidazolone aqueous solution is 0.3-0.5 mol / L, and the sodium aminobenzoate aqueous solution is 0.1-0.15 wt%.

[0021] As a preferred technical solution of the present invention, the immersion in step S3 is immersion at room temperature for 8-10 hours; the washing is washing with deionized water 2-3 times; the temperature of the temperature-controlled drying is 90-100°C and the time is 6-8 hours; the stirring time of the ultrasound after stirring is 3-5 minutes, and the ultrasound time is 10-15 minutes; the temperature of the temperature-controlled water bath stirring is 85-90°C and the time is 2-3 hours; and the screening is through a 200-250 mesh sieve.

[0022] Another aspect of the present application provides a method for preparing a composite honeycomb activated carbon adsorption material, comprising the following steps:

[0023] (1) mixing and stirring the composite modified activated carbon, the binder, the polytetrafluoroethylene emulsion and the deionized water to obtain an intermediate slurry;

[0024] (2) kneading the intermediate clay, pouring it into a mold, extruding it into shape, and drying it under controlled temperature to obtain a finished composite honeycomb activated carbon adsorption material.

[0025] As a preferred technical solution of the present invention, the stirring time in step (1) is 0.5-1h.

[0026] As a preferred technical solution of the present invention, the temperature of the temperature-controlled drying in step (2) is 130-150° C. and the time is 10-12 hours.

[0027] Beneficial effects of the present invention:

[0028] (1) In the process of preparing the composite modified activated carbon, manganese acetate is added to introduce manganese elements with oxygen vacancies on the surface. Oxygen molecules can be activated at the oxygen vacancies to form active oxygen, which then adsorbs free formaldehyde and converts it into carbon dioxide and water. At the same time, the added zirconium tetrachloride can introduce zirconium elements as Lewis acid sites to promote the adsorption and enrichment of formaldehyde by the system, and help the manganese elements convert more formaldehyde. Copper acetate introduces copper elements as an activating component, which can preferentially participate in electron transfer, reduce the reaction activation energy, and assist the manganese elements in improving the activation ability. Therefore, the composite modified activated carbon is used to prepare the composite honeycomb activated carbon adsorption material, and the obtained composite honeycomb activated carbon adsorption material can also have outstanding adsorption and purification performance of formaldehyde.

[0029] (2) In the process of preparing the composite modified activated carbon, the present application adds a 2-imidazolone aqueous solution to introduce nitrogen-containing functional groups with strong electronegativity to increase the electron cloud density on the surface of the activated carbon, thereby enhancing the adsorption capacity of the activated carbon for formaldehyde. At the same time, a sodium p-aminobenzoate aqueous solution is added to introduce amino functional groups to attack the carbonyl groups on the adsorbed formaldehyde, thereby achieving the removal of formaldehyde; therefore, the composite modified activated carbon is used to prepare the composite honeycomb activated carbon adsorption material, and the obtained composite honeycomb activated carbon adsorption material can also have excellent formaldehyde adsorption and purification performance. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] The raw materials used in this application are all commercially available, including:

[0032] The coconut shell activated carbon supplier is Guangdong Hanyan Activated Carbon Technology Co., Ltd.;

[0033] The supplier of polytetrafluoroethylene emulsion is Guangzhou Songbai Chemical Co., Ltd.;

[0034] The above will not be repeated any more.

[0035] Example 1

[0036] A composite honeycomb activated carbon adsorption material comprises the following raw materials in parts by weight:

[0037] 100 parts by weight of composite modified activated carbon, 4.5 parts by weight of binder, 26 parts by weight of polytetrafluoroethylene emulsion, and 8 parts by weight of deionized water;

[0038] The binder is carboxymethyl cellulose;

[0039] The preparation method of the composite modified activated carbon comprises the following steps:

[0040] S1. Mix manganese acetate, copper acetate, zirconium tetrachloride and deionized water and ultrasonicate for 20 minutes, hydrothermally treat at 145°C for 7 hours, cool to room temperature, centrifuge, wash twice with deionized water, dry at 70°C for 26 hours, grind, and pass through a 250-mesh sieve to obtain an oxidized mixture for later use;

[0041] The mass ratio of the manganese acetate, copper acetate and zirconium tetrachloride is 2.2:1:1; the total molar concentration of the manganese acetate, copper acetate and zirconium tetrachloride in the deionized water is 1 mol / L;

[0042] S2, the powdered activated carbon was temperature-controlled and dried at 80 ° C for 12 h, and a 2 wt% KH550 ethanol solution was added, ultrasonicated for 12.5 min, and then temperature-controlled and stirred for 2 h at 60 ° C, washed with deionized water 3 times, and dried at 80 ° C for 12 h to obtain intermediate material A. The intermediate material A, the oxidized mixture and the 92 wt% ethanol solution were mixed and ultrasonicated for 10 min, stirred in a water bath at 65 ° C for 2 h, centrifuged, washed with deionized water 3 times, and then temperature-controlled and dried at 80 ° C for 12 h, ground, and passed through a 200 mesh sieve to obtain intermediate material B;

[0043] The powdered activated carbon is coconut shell activated carbon with an iodine value of 600 mg / L;

[0044] The ratio of the powder activity and 2.5 wt% KH550 ethanol solution is 1.5 g:50 mL;

[0045] The mass ratio of the intermediate material A, the oxidation mixture and the 90wt% ethanol solution is 2.5:1:32.5;

[0046] S3, the intermediate material B was added to a 0.3 mol / L 2-imidazolone aqueous solution and immersed at room temperature for 8 h, centrifuged, washed with deionized water 3 times, dried at 90 ° C for 8 h, and then added with a 0.1 wt% sodium p-aminobenzoate aqueous solution, stirred for 5 min, and then ultrasonicated for 10 min, and then stirred in a water bath at 87.5 ° C for 2 h, rotary evaporated, dried, ground, and passed through a 250 mesh sieve to obtain a composite modified activated carbon;

[0047] The mass ratio of intermediate material B, 2-imidazolone aqueous solution, and sodium p-aminobenzoate aqueous solution is 1:1.2:0.65;

[0048] The preparation method of the composite honeycomb activated carbon adsorption material comprises the following steps:

[0049] (1) The composite modified activated carbon, binder, polytetrafluoroethylene emulsion and deionized water were mixed and stirred for 0.5 h to obtain an intermediate slurry;

[0050] (2) Knead the intermediate clay, pour it into a mold, extrude it into shape, and dry it at 140°C for 10 hours to obtain the finished composite honeycomb activated carbon adsorption material.

[0051] Example 2

[0052] A composite honeycomb activated carbon adsorption material comprises the following raw materials in parts by weight:

[0053] 100 parts by weight of composite modified activated carbon, 5 parts by weight of binder, 27 parts by weight of polytetrafluoroethylene emulsion, and 6 parts by weight of deionized water;

[0054] The binder is carboxymethyl cellulose;

[0055] The preparation method of the composite modified activated carbon comprises the following steps:

[0056] S1. Mix manganese acetate, copper acetate, zirconium tetrachloride and deionized water and ultrasonicate for 25 minutes, hydrothermally treat at 150°C for 6 hours, cool to room temperature, centrifuge, wash with deionized water 3 times, dry at 75°C for 24 hours, grind, and pass through a 250-mesh sieve to obtain an oxidized mixture for later use;

[0057] The mass ratio of the manganese acetate, copper acetate and zirconium tetrachloride is 2:1.2:1; the total molar concentration of the manganese acetate, copper acetate and zirconium tetrachloride in the deionized water is 1.2 mol / L;

[0058] S2, the powdered activated carbon was temperature-controlled and dried at 70 ° C for 13 h, and a 2.5 wt% KH550 ethanol solution was added and ultrasonicated for 10 min, and then the mixture was temperature-controlled and stirred at 55 ° C for 2.5 h, washed with deionized water 4 times, and dried at 70 ° C for 13 h to obtain intermediate material A. The intermediate material A, the oxidized mixture and the 95 wt% ethanol solution were mixed and ultrasonicated for 15 min, and the mixture was temperature-controlled and stirred in a water bath at 62.5 ° C for 2.5 h, centrifuged, washed with deionized water 4 times, and then temperature-controlled and dried at 70 ° C for 13 h, ground, and passed through a 250 mesh sieve to obtain intermediate material B;

[0059] The powdered activated carbon is coconut shell activated carbon with an iodine value of 600 mg / L;

[0060] The ratio of the powder activity and 3 wt % KH550 ethanol solution is 1 g:57.5 mL;

[0061] The mass ratio of the intermediate material A, the oxidation mixture and the 95wt% ethanol solution is 2:1:30;

[0062] S3, the intermediate material B was added to a 0.5 mol / L 2-imidazolone aqueous solution and immersed at room temperature for 9 h, centrifuged, washed with deionized water twice, dried at 95 ° C for 6 h, and then added with a 0.12 wt% aqueous solution of sodium p-aminobenzoate, stirred for 3 min, and then ultrasonicated for 12.5 min, and then stirred in a water bath at 90 ° C for 2.5 h, rotary evaporated, dried, ground, and passed through a 200 mesh sieve to obtain a composite modified activated carbon;

[0063] The mass ratio of intermediate material B, 2-imidazolone aqueous solution, and sodium p-aminobenzoate aqueous solution is 1:1.8:0.8;

[0064] The preparation method of the composite honeycomb activated carbon adsorption material comprises the following steps:

[0065] (1) The composite modified activated carbon, binder, polytetrafluoroethylene emulsion and deionized water were mixed and stirred for 1 hour to obtain an intermediate slurry;

[0066] (2) Knead the intermediate clay, pour it into a mold, extrude it into shape, and dry it at 130°C for 12 hours to obtain the finished composite honeycomb activated carbon adsorption material.

[0067] Example 3

[0068] A composite honeycomb activated carbon adsorption material comprises the following raw materials in parts by weight:

[0069] 100 parts by weight of composite modified activated carbon, 4 parts by weight of binder, 28 parts by weight of polytetrafluoroethylene emulsion, and 7 parts by weight of deionized water;

[0070] The binder is methyl cellulose;

[0071] The preparation method of the composite modified activated carbon comprises the following steps:

[0072] S1. Mix manganese acetate, copper acetate, zirconium tetrachloride and deionized water and ultrasonicate for 30 minutes, hydrothermally treat at 147.5°C for 8 hours, cool to room temperature, centrifuge, wash with deionized water 3 times, dry at 80°C for 25 hours, grind, and pass through a 200-mesh sieve to obtain an oxidized mixture for later use;

[0073] The mass ratio of the manganese acetate, copper acetate and zirconium tetrachloride is 2.4:1.1:1; the total molar concentration of the manganese acetate, copper acetate and zirconium tetrachloride in the deionized water is 1.5 mol / L;

[0074] S2, the powdered activated carbon was temperature-controlled and dried at 75 ° C for 14 h, 3 wt% KH550 ethanol solution was added and ultrasonicated for 15 min, then temperature-controlled and stirred at 57.5 ° C for 3 h, washed with deionized water 5 times, and dried at 75 ° C for 14 h to obtain intermediate material A, and the intermediate material A, the oxidized mixture and 90 wt% ethanol solution were mixed and ultrasonicated for 12.5 min, temperature-controlled and stirred in a water bath at 60 ° C for 3 h, centrifuged, washed with deionized water 5 times, and then temperature-controlled and dried at 75 ° C for 14 h, ground, and passed through a 250 mesh sieve to obtain intermediate material B;

[0075] The powdered activated carbon is coconut shell activated carbon with an iodine value of 600 mg / L;

[0076] The ratio of the powder activity and 2 wt% KH550 ethanol solution is 1.2 g:65 mL;

[0077] The mass ratio of the intermediate material A, the oxidation mixture and the 92.5wt% ethanol solution is 2.2:1:35;

[0078] S3, the intermediate material B was added to a 0.4 mol / L 2-imidazolone aqueous solution and immersed at room temperature for 10 h, centrifuged, washed with deionized water 3 times, dried at 100 ° C for 7 h, and then added with a 0.15 wt% sodium p-aminobenzoate aqueous solution and stirred for 4 min, then ultrasonicated for 15 min, and then stirred in a water bath at 85 ° C for 3 h, rotary evaporated and dried, ground, and passed through a 200 mesh sieve to obtain a composite modified activated carbon;

[0079] The mass ratio of intermediate material B, 2-imidazolone aqueous solution, and sodium p-aminobenzoate aqueous solution is 1:1.5:0.5;

[0080] The preparation method of the composite honeycomb activated carbon adsorption material comprises the following steps:

[0081] (1) The composite modified activated carbon, binder, polytetrafluoroethylene emulsion and deionized water were mixed and stirred for 1 hour to obtain an intermediate slurry;

[0082] (2) The intermediate clay material is kneaded, poured into a mold, extruded and formed, and dried at a controlled temperature of 150°C for 11 hours to obtain a finished composite honeycomb activated carbon adsorption material.

[0083] Comparative Example 1

[0084] Compared with Example 3, the difference is that manganese acetate is not added in Comparative Example 1, and the rest remain unchanged.

[0085] Comparative Example 2

[0086] Compared with Example 3, the difference is that copper acetate is not added in Comparative Example 2, and the rest remain unchanged.

[0087] Comparative Example 3

[0088] Compared with Example 3, the difference is that zirconium tetrachloride is not added in Comparative Example 3, and the rest remain unchanged.

[0089] Comparative Example 4

[0090] Compared with Example 3, the difference is that in Comparative Example 4, no 2-imidazolone aqueous solution is added, and the rest remains unchanged.

[0091] Comparative Example 5

[0092] Compared with Example 3, the difference is that no sodium p-aminobenzoate aqueous solution is added in Comparative Example 5, and the rest remain unchanged.

[0093] Test Case

[0094] Take 10g of the finished composite honeycomb activated carbon adsorption materials prepared in Examples 1-3 and Comparative Examples 1-5 respectively and put them into air purifiers. The air volume of the air purifier is 10m 3 / h, placed at 1m 3 In the experimental chamber, the temperature is 25℃ and the relative humidity is 50%. Formaldehyde is added dropwise in the experimental chamber, and the initial formaldehyde concentration is 2.0 mg / m 3 , turn on the purifier, take samples to test the formaldehyde concentration in the cabin after 1h, 6h, 12h, 24h, and 48h, and calculate the formaldehyde purification rate according to the following formula:

[0095] Formaldehyde purification rate (%) = [(formaldehyde concentration before purification - formaldehyde concentration after purification) / formaldehyde concentration before purification] × 100%;

[0096] The results are shown in Table 1.

[0097] Table 1

[0098]

[0099]

[0100] As can be seen from Table 1, the finished composite honeycomb activated carbon adsorption material prepared in the present application has excellent formaldehyde adsorption and purification performance.

[0101] Throughout the specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0102] The above content is merely an example and explanation of the concept of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A composite honeycomb activated carbon adsorption material, characterized in that: It includes the following raw materials in parts by weight: 100 parts by weight of composite modified activated carbon, 4-5 parts by weight of binder, 26-28 parts by weight of polytetrafluoroethylene emulsion, and 6-8 parts by weight of deionized water.

2. The composite honeycomb activated carbon adsorption material according to claim 1, characterized in that: The binder includes at least one of carboxymethyl cellulose and methyl cellulose.

3. The composite honeycomb activated carbon adsorption material according to claim 1, characterized in that: The preparation method of the composite modified activated carbon comprises the following steps: S1. Mix manganese acetate, copper acetate, zirconium tetrachloride and deionized water, perform ultrasonic treatment, perform temperature-controlled hydrothermal treatment, cool to room temperature, centrifuge, wash, temperature-controlled dry, grind, and sieve to obtain an oxidized mixture, which is then set aside. S2, the powdered activated carbon was temperature-controlled and dried, KH550 ethanol solution was added and ultrasonicated, and then temperature-controlled and stirred, washed, and temperature-controlled and dried to obtain intermediate material A, and the intermediate material A, the oxidized mixed material and the ethanol solution were mixed and ultrasonicated, stirred in a temperature-controlled water bath, centrifuged, washed, and then temperature-controlled and dried, ground, and sieved to obtain intermediate material B; S3. Add the intermediate material B into the 2-imidazolone aqueous solution for immersion, centrifuge, wash, control the temperature and dry, then add the sodium p-aminobenzoate aqueous solution, stir and ultrasonicate, then control the temperature and stir in a water bath, rotary evaporate and dry, grind and sieve to obtain the composite modified activated carbon.

4. The composite honeycomb activated carbon adsorption material according to claim 3, characterized in that: The mass ratio of manganese acetate, copper acetate and zirconium tetrachloride in step S1 is 2-2.4:1-1.2:1; the total molar concentration of manganese acetate, copper acetate and zirconium tetrachloride in deionized water is 1-1.5 mol / L.

5. The composite honeycomb activated carbon adsorption material according to claim 3, characterized in that: The powdered activated carbon in step S2 includes coconut shell activated carbon; the iodine value of the powdered activated carbon is not less than 600 mg / L.

6. The composite honeycomb activated carbon adsorption material according to claim 3, characterized in that: In step S2, the dosage ratio of the powder active agent and the KH550 ethanol solution is 1-1.5 g: 50-65 mL; the mass ratio of the intermediate material A, the oxidized mixture and the ethanol solution is 2-2.5: 1: 30-35.

7. The composite honeycomb activated carbon adsorption material according to claim 3, characterized in that: The mass ratio of the intermediate material B, 2-imidazolone aqueous solution, and sodium p-aminobenzoate aqueous solution in step S3 is 1:1.2-1.8:0.5-0.

8.

8. A method for preparing the composite honeycomb activated carbon adsorption material according to any one of claims 1 to 7, characterized in that: The steps include: (1) mixing and stirring the composite modified activated carbon, the binder, the polytetrafluoroethylene emulsion and the deionized water to obtain an intermediate slurry; (2) kneading the intermediate clay, pouring it into a mold, extruding it into shape, and drying it under controlled temperature to obtain a finished composite honeycomb activated carbon adsorption material.

9. The method for preparing the composite honeycomb activated carbon adsorption material according to claim 8, characterized in that: The stirring time in step (1) is 0.5-1h.

10. The method for preparing the composite honeycomb activated carbon adsorption material according to claim 8, characterized in that: The temperature of the temperature-controlled drying in step (2) is 130-150° C., and the time is 10-12 hours.

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