Amine-containing organic adsorption material and preparation method thereof

Abstract

The invention discloses an amine-containing organic adsorption material, and the preparation method thereof is as follows: ceramic powder is mixed and stirred with a PDDA solution, and a pre-treated ceramic powder is obtained after washing and drying; ethanol, deionized water, ammonia water and CTAB are mixed to obtain a composite solution, and the pre-treated ceramic powder is mixed with the composite solution to prepare an impregnation solution; the adsorption ceramic is placed in the impregnation solution and stirred, tetraethyl orthosilicate is slowly added and stirred, and dried; a hydrogen peroxide solution is mixed with a metal sulfate solution, and the dried adsorption ceramic is placed in the mixed solution for modification, and the modified adsorption ceramic is dried and then roasted and cooled to obtain an adsorption ceramic with a mesoSiO2 adsorption layer formed on the surface. The adsorption ceramic prepared by the invention has strong adsorption performance for amine-containing organic matter, can be used as a pre-treatment material before amine-containing organic waste gas enters RTO, and the preparation method is simple and practical.

Description

Technical field:

[0001] The invention belongs to the technical field of environmental protection, and in particular relates to an amine-containing organic adsorption material and a preparation method thereof. Background technology:

[0002] In recent years, as the country continues to manage environmental protection, SO2, PM 2.5 The emission reduction effect of pollutants such as VOCs is obvious, and the ambient air quality has been significantly improved. However, there is still pressure to continuously improve the environmental quality. O3 pollutants have increased instead of decreased in the past two years, and the control effect is not optimistic. Therefore, it is necessary to further improve the environmental quality. For key areas and key industries, the total VOCs emissions are required to decrease by more than 10%.

[0003] Among the common VOCs treatment technologies currently, the regenerative thermal incineration (RTO) method has high purification efficiency and is widely used. In the pharmaceutical and chemical industry, waste gas often contains amine-containing organics such as triethylamine and trimethylamine. RTO will produce NOx byproducts in the process of treating amine-containing organics, which is easy to form ammonium salt crystals in the low-temperature zone of the RTO thermal storage body, resulting in blockage at the bottom of the RTO. The longer the RTO is used, the lower the overall purification efficiency will be. To solve this problem, the industry often uses shutdown flushing or high-temperature gas back-burning methods. However, shutdown flushing has the problem of affecting production efficiency and high cost. The use of high-temperature gas back-burning is easy to damage the catalyst filled in the lower layer of the thermal storage body, and there are safety hazards. Therefore, it is necessary to pre-treat the amine-containing organic waste gas before it enters the RTO. The commonly used pretreatment material is the saddle ring. However, the traditional saddle ring is an open filler with a grooved semicircular structure, which has poor sliding properties and almost no adsorption properties on the surface, and is not targeted for the adsorption of amine-containing organics.

[0004] Based on the above, it is necessary to develop a material for pretreatment of amine-containing organic matter. Therefore, the present invention provides an amine-containing organic matter adsorption material and a preparation method thereof to solve the above problems. Summary of the invention:

[0005] The object of the present invention is to provide an amine-containing organic adsorption material and a preparation method thereof in view of the deficiencies in the prior art.

[0006] The present invention adopts the following technical solutions:

[0007] (I) The present invention provides a method for preparing an amine-containing organic adsorption material, comprising:

[0008] S1. Take a ceramic block and ball-mill it into a ceramic powder with a particle size of 0.1 to 1 mm. Wash the ball-milled ceramic powder with ethanol and deionized water for 2 to 3 times, then dry it for later use.

[0009] The ceramic powder is mixed with a polydiallyldimethylammonium chloride (PDDA) solution, stirred, washed, and dried to obtain a pretreated ceramic powder;

[0010] S2, mixing ethanol, deionized water, ammonia water, and cetyltrimethylammonium bromide (CTAB) to obtain a composite solution, mixing the pretreated ceramic powder with the composite solution to prepare an impregnation solution;

[0011] S3, placing the adsorbent ceramic in the impregnation solution and stirring, slowly adding tetraethyl orthosilicate (TEOS) and stirring, and drying;

[0012] S4. Mixing the hydrogen peroxide solution with the metal sulfate solution, placing the dried adsorption ceramic in the mixed solution for modification, drying the modified adsorption ceramic, calcining it, and cooling it to obtain an adsorption ceramic with a mesoSiO2 adsorption layer formed on the surface.

[0013] Furthermore, in S1, the ceramic powder is obtained by ball milling a ceramic block, and the particle size of the ceramic powder is 0.1 to 1 mm; the ceramic powder is mixed with a polydiallyldimethylammonium chloride (PDDA) solution, and then stirred at room temperature for 1 to 2 hours.

[0014] Furthermore, in S1, the solid-liquid mass ratio of the ceramic powder to the polydiallyldimethylammonium chloride solution is 1:(10-20); and the mass concentration of the polydiallyldimethylammonium chloride solution is 1.0 g / L.

[0015] Furthermore, in S1, after the ceramic powder and the polydiallyldimethylammonium chloride (PDDA) solution are stirred, they are centrifuged and washed 2 to 3 times, and dried at 60 to 80° C. for 12 hours to obtain a PDDA-pretreated ceramic powder.

[0016] Furthermore, in the composite solution of S2, the mass ratio of ethanol, deionized water, ammonia water and CTAB is (200-300):350:5:(3-5); the mass ratio of the pretreated ceramic powder to the composite solution is 1:(40-50).

[0017] Furthermore, in S3, the mass ratio of tetraethyl orthosilicate to ceramic powder is 1:(2-4); the stirring is uniform clockwise stirring, the stirring time is 2-5 hours, and the stirring temperature is 50-60°C; after the stirring is completed, the mixture is washed with deionized water 2-3 times, the drying temperature is 120°C, and the drying time is 12 hours.

[0018] Furthermore, in S3, the adsorption ceramic is a honeycomb ceramic ball, which is a spherical ceramic structure with a diameter of 50 to 100 mm, and has a mutually intersecting channel structure arranged inside, and the channel diameter is 8 to 12 mm.

[0019] Furthermore, in S4, the volume ratio of the hydrogen peroxide solution to the metal sulfate solution is 1:(1-1.5), the mass concentration of the hydrogen peroxide solution is 15%-25%, and the mass concentration of the metal sulfate solution is 2%-4%; the metal sulfate is cobalt sulfate, nickel sulfate or chromium sulfate.

[0020] Furthermore, in S4, the modification temperature is room temperature, and the modification time is 4 to 8 hours; the modified adsorption ceramic is washed, dried, and then calcined, and the washing process is washing with deionized water for 2 to 3 times, the drying temperature is 120° C., and the drying time is 12 hours.

[0021] Furthermore, in S4, the calcination temperature is 500-600° C., and the calcination time is 5-6 hours.

[0022] (II) The present invention also provides an amine-containing organic adsorption material, which is prepared by the preparation method described above.

[0023] Beneficial effects of the present invention:

[0024] (1) The present invention adopts a self-assembly method to form an adsorption layer of mesoSiO2 on the surface of the adsorption ceramic, which has a better adsorption effect on amine-containing organic matter.

[0025] (2) In the present invention, the ceramic ball is ground into powder and used as a crystallization nucleus. On the one hand, it is beneficial to the self-assembly of mesoSiO2. On the other hand, the ceramic powder has the same components as the adsorption ceramic and is easy to form silicon-oxygen bonds, so that the adsorption layer on the surface of the adsorption ceramic is more stable and not easy to fall off.

[0026] (3) After modification by hydrogen peroxide and metal sulfate, the number of acidic groups such as carboxyl, aldehyde, and hydroxyl groups on the surface of the adsorption ceramic increases, thereby increasing the acidity of the surface of the adsorption ceramic and making it easier to adsorb weakly alkaline amine-containing organic matter. At the same time, metal ions are added to the surface of the material, which makes it easy to form complexes with amine-containing organic matter, thereby increasing its adsorption amount.

[0027] (4) In the embodiment of the present invention, the adsorption ceramic is a honeycomb ceramic ball. A cross-channel structure is arranged inside the honeycomb ceramic ball, which can increase the contact area between the gas and the honeycomb ceramic ball and make the gas distribution more uniform. Compared with the traditional rectangular saddle ring, it has a larger specific surface area and is easy to move. Description of the drawings:

[0028] Figure 1 It is a schematic diagram of a honeycomb ceramic ball;

[0029] Figure 2 TEM images of C, C@mesoSiO2, and C@mesoSiO2-Co;

[0030] Figure 3This is the adsorption performance curve of C, C@mesoSiO2, and C@mesoSiO2-Co for triethylamine. Specific implementation method:

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] The embodiment of the present invention provides an amine-containing organic adsorption material, and the preparation method thereof is as follows:

[0034] (I) Preparation of PDDA pretreated ceramic powder:

[0035] The ceramic block was ball-milled into a ceramic powder with a particle size of 0.1 mm. The ball-milled ceramic powder was washed with ethanol, washed with deionized water for 3 times, and dried for use. The ceramic powder was mixed with a 1.0 g / L polydiallyldimethylammonium chloride (PDDA) solution at a solid-liquid mass ratio of 1:20, stirred at room temperature for 1 h, washed with deionized water by centrifugation for 3 times, and dried at 80 ° C for 12 h to obtain a PDDA-pretreated ceramic powder.

[0036] (ii) Preparation of impregnation solution:

[0037] Ethanol, deionized water, ammonia water, and hexadecyltrimethylammonium bromide (CTAB) were mixed to obtain a composite solution, wherein the mass ratio of ethanol, deionized water, ammonia water, and CTAB was 300:350:5:3. The pretreated ceramic powder was mixed with the composite solution at a mass ratio of 1:50, and ultrasonically dispersed for 10 minutes to obtain an impregnation solution.

[0038] (III) Impregnation of honeycomb ceramic balls:

[0039] Prepare honeycomb ceramic balls, which are spherical ceramic structures with a diameter of 50 mm and an intersecting channel structure inside, with a channel diameter of 8 mm. Place the honeycomb ceramic ball in the impregnation solution and stir it clockwise at a uniform speed. Slowly add tetraethyl orthosilicate (TEOS) during the stirring process and continue stirring for 2 hours. The stirring temperature is controlled at 60°C. The mass ratio of tetraethyl orthosilicate to ceramic powder is 1:2. After stirring, filter and wash with deionized water 3 times, dry at 120°C for 12 hours, and take out for use.

[0040] (IV) Modification and calcination of honeycomb ceramic balls:

[0041] Prepare a hydrogen peroxide solution with a mass concentration of 15%, and prepare a cobalt sulfate solution with a mass concentration of 4%. Mix the prepared hydrogen peroxide solution with the metal sulfate solution in a volume ratio of 1:1 to obtain a modified solution. Place the honeycomb ceramic ball dried in step (iii) in the mixed solution for secondary immersion to modify the honeycomb ceramic ball. The secondary immersion temperature is room temperature and the secondary immersion time is 8 hours. Filter the modified honeycomb ceramic ball, wash it with deionized water 2 to 3 times to wash away the immersion liquid on the surface of the sample, then dry it at 120°C for 12 hours, and place it in a muffle furnace for calcination after drying. The calcination temperature is 500°C and the calcination time is 5 hours. After cooling to room temperature, take it out to obtain a honeycomb ceramic ball with a mesoSiO2 adsorption layer formed on the surface, which is recorded as C@mesoSiO2-Co.

[0042] Example 2

[0043] The embodiment of the present invention provides an amine-containing organic adsorption material, and the preparation method thereof is as follows:

[0044] (I) Preparation of PDDA pretreated ceramic powder:

[0045] The ceramic block was ball-milled into a ceramic powder with a particle size of 0.1 mm. The ball-milled ceramic powder was washed with ethanol, washed with deionized water three times, and dried for use. The ceramic powder was mixed with a polydiallyldimethylammonium chloride (PDDA) solution with a mass concentration of 1.0 g / L at a solid-liquid mass ratio of 1:10, stirred at room temperature for 2 h, washed with deionized water by centrifugation three times, and dried at 60°C for 12 h to obtain a PDDA-pretreated ceramic powder.

[0046] (ii) Preparation of impregnation solution:

[0047] Ethanol, deionized water, ammonia water, and hexadecyltrimethylammonium bromide (CTAB) were mixed to obtain a composite solution, wherein the mass ratio of ethanol, deionized water, ammonia water, and CTAB was 200:350:5:5. The pretreated ceramic powder was mixed with the composite solution at a mass ratio of 1:40, and ultrasonically dispersed for 10 minutes to obtain an impregnation solution.

[0048] (III) Impregnation of honeycomb ceramic balls:

[0049] Prepare honeycomb ceramic balls, which are spherical ceramic structures with a diameter of 50 mm and a cross-channel structure inside, with a channel diameter of 8 mm. Place the honeycomb ceramic ball in the impregnation solution and stir it clockwise at a uniform speed. Slowly add tetraethyl orthosilicate (TEOS) during the stirring process and continue stirring for 4 hours. The stirring temperature is controlled at 50°C. The mass ratio of tetraethyl orthosilicate to ceramic powder is 1:4. After stirring, filter and wash with deionized water 3 times, dry at 120°C for 12 hours, and take out for use.

[0050] (IV) Modification and calcination of honeycomb ceramic balls:

[0051] Prepare a hydrogen peroxide solution with a mass concentration of 25%, and prepare a cobalt sulfate solution with a mass concentration of 2%. Mix the prepared hydrogen peroxide solution with the metal sulfate solution in a volume ratio of 1:1.5 to obtain a modified solution. Place the honeycomb ceramic balls dried in step (iii) in the mixed solution for secondary immersion to modify the honeycomb ceramic balls. The secondary immersion temperature is room temperature and the secondary immersion time is 6 hours. Filter the modified honeycomb ceramic balls, wash them with deionized water 3 times to wash away the immersion liquid on the surface of the sample, then dry them at 120°C for 12 hours, and place them in a muffle furnace for calcination after drying. The calcination temperature is 600°C and the calcination time is 6 hours. Take them out after cooling to room temperature to obtain honeycomb ceramic balls with a mesoSiO2 adsorption layer formed on the surface.

[0052] Example 3

[0053] The embodiment of the present invention provides an amine-containing organic adsorption material, and the preparation method thereof is as follows:

[0054] (I) Preparation of PDDA pretreated ceramic powder:

[0055] The ceramic block was ball-milled into a ceramic powder with a particle size of 0.1 mm. The ball-milled ceramic powder was washed with ethanol, washed with deionized water for 3 times, and dried for use. The ceramic powder was mixed with a polydiallyldimethylammonium chloride (PDDA) solution with a mass concentration of 1.0 g / L at a solid-liquid mass ratio of 1:15, stirred at room temperature for 1 h, washed with deionized water by centrifugation for 3 times, and dried at 70 ° C for 12 h to obtain a PDDA-pretreated ceramic powder.

[0056] (ii) Preparation of impregnation solution:

[0057] Ethanol, deionized water, ammonia water, and hexadecyltrimethylammonium bromide (CTAB) were mixed to obtain a composite solution, wherein the mass ratio of ethanol, deionized water, ammonia water, and CTAB was 250:350:5:4. The pretreated ceramic powder was mixed with the composite solution at a mass ratio of 1:45, and ultrasonically dispersed for 10 minutes to obtain an impregnation solution.

[0058] (III) Impregnation of honeycomb ceramic balls:

[0059] Prepare honeycomb ceramic balls, which are spherical ceramic structures with a diameter of 50 mm and a cross-channel structure inside, with a channel diameter of 8 mm. Place the honeycomb ceramic ball in the impregnation solution and stir it clockwise at a uniform speed. Slowly add tetraethyl orthosilicate (TEOS) during the stirring process and continue stirring for 5 hours. The stirring temperature is controlled at 55°C. The mass ratio of tetraethyl orthosilicate to ceramic powder is 1:3. After stirring, filter and wash with deionized water 3 times, dry at 120°C for 12 hours, and take out for use.

[0060] (IV) Modification and calcination of honeycomb ceramic balls:

[0061] Prepare a hydrogen peroxide solution with a mass concentration of 20%, and prepare a cobalt sulfate solution with a mass concentration of 3%. Mix the prepared hydrogen peroxide solution with the metal sulfate solution in a volume ratio of 1:1.2 to obtain a modified solution. Place the honeycomb ceramic balls dried in step (iii) in the mixed solution for secondary immersion to modify the honeycomb ceramic balls. The secondary immersion temperature is room temperature and the secondary immersion time is 8 hours. Filter the modified honeycomb ceramic balls and wash them with deionized water 3 times to wash away the immersion liquid on the surface of the sample, then dry them at 120°C for 12 hours, and place them in a muffle furnace for calcination after drying. The calcination temperature is 550°C and the calcination time is 5 hours. After cooling to room temperature, take them out to obtain honeycomb ceramic balls with a mesoSiO2 adsorption layer formed on the surface.

[0062] Comparative Example 1

[0063] Comparative Example 1 provides a method for processing a honeycomb ceramic ball, specifically:

[0064] (I) Preparation of PDDA pretreated ceramic powder:

[0065] The ceramic block was ball-milled into a ceramic powder with a particle size of 0.1 mm. The ball-milled ceramic powder was washed with ethanol, washed with deionized water for 3 times, and dried for use. The ceramic powder was mixed with a 1.0 g / L polydiallyldimethylammonium chloride (PDDA) solution at a solid-liquid mass ratio of 1:20, stirred at room temperature for 1 h, washed with deionized water by centrifugation for 3 times, and dried at 80 ° C for 12 h to obtain a PDDA-pretreated ceramic powder.

[0066] (ii) Preparation of impregnation solution:

[0067] Ethanol, deionized water, ammonia water, and hexadecyltrimethylammonium bromide (CTAB) were mixed to obtain a composite solution, wherein the mass ratio of ethanol, deionized water, ammonia water, and CTAB was 300:350:5:3. The pretreated ceramic powder was mixed with the composite solution at a mass ratio of 1:50, and ultrasonically dispersed for 10 minutes to obtain an impregnation solution.

[0068] (III) Impregnation and calcination of honeycomb ceramic balls:

[0069] Prepare honeycomb ceramic balls, which are spherical ceramic structures with a diameter of 50 mm and a cross-channel structure inside, with a channel diameter of 8 mm. Place the honeycomb ceramic ball in the impregnation solution and stir it clockwise at a uniform speed. Slowly add tetraethyl orthosilicate (TEOS) during the stirring process and continue stirring for 2 hours. The stirring temperature is controlled at 60°C, and the mass ratio of tetraethyl orthosilicate to ceramic powder is 1:2. After stirring, filter and wash with deionized water 3 times, dry at 120°C for 12 hours, and place in a muffle furnace for calcination after drying. The calcination temperature is 500°C and the calcination time is 5 hours. Take it out after cooling to room temperature to obtain the treated honeycomb ceramic ball, which is recorded as C@mesoSiO2.

[0070] Comparative Example 2

[0071] Comparative Example 2 is an untreated honeycomb ceramic ball, which is a spherical ceramic structure with a diameter of 50 mm and an intersecting pore structure arranged inside. The pore diameter is 8 mm, which is recorded as C.

[0072] Comparative test:

[0073] The C@mesoSiO2-Co prepared in Example 1, the C@mesoSiO2 prepared in Comparative Example 1 and the untreated honeycomb ceramic ball C in Comparative Example 2 were compared in terms of morphology and adsorption effect on amine-containing organic matter.

[0074] 1. Appearance:

[0075] C, C@mesoSiO2, and C@mesoSiO2-Co were tested under a transmission electron microscope (TEM). Figure 1 is the morphology of the untreated honeycomb ceramic ball C. Figure 2 Transmission electron microscope morphology of honeycomb ceramic spheres.

[0076] It can be seen from the TEM image that there is no dense mesoSiO2 shell on the surface of the untreated honeycomb ceramic ball C, and a dense mesoSiO2 shell is formed on the outer surface of the C@mesoSiO2 and C@mesoSiO2-Co crystals.

[0077] 2. Adsorption of triethylamine:

[0078] 2.5 g of C, C@mesoSiO2, and C@mesoSiO2-Co were weighed and filled into adsorption tubes as adsorbents. The air volume was 15 L / min, the air temperature was 25 °C, the air humidity was 50%, and the air triethylamine concentration was 500 mg / m 3, the adsorption performance of the three materials on triethylamine was tested and the adsorption breakthrough curve was plotted. Figure 3 .

[0079] The adsorption performance of the three materials for triethylamine was calculated from the adsorption penetration curve. The calculation results show that the untreated honeycomb ceramic ball C has a very poor adsorption effect on triethylamine, with an adsorption capacity of 5.1 mg / g. The adsorption capacity of the core-shell structure C@mesoSiO2 formed by self-assembly is 18.5 mg / g for triethylamine, and the adsorption capacity of the metal ion-modified C@mesoSiO2-Co for triethylamine is 22.9 mg / g. The adsorption performance of the modified material for triethylamine is improved by more than 3 times, which shows that the adsorption performance of the modified C@mesoSiO2-Co for triethylamine is significantly improved.

[0080] The present invention provides an amine-containing organic adsorption material, which solves the problem that the conventional square saddle ring has poor adsorption capacity for amine-containing organics and improves the enrichment capacity for amine-containing organics. More specifically, an adsorption layer capable of targeting amine-containing organics is formed on the surface of the adsorption ceramic (honeycomb ceramic ball), which facilitates the enrichment of amine-containing organics.

[0081] The honeycomb ceramic balls prepared in the embodiment of the present invention can be used as pretreatment materials before amine-containing organic waste gas enters RTO, so that more crystals in RTO are gathered on the honeycomb ceramic balls, avoiding the problem of blockage caused by ceramic bricks and indoor dioxin decomposition catalysts. Regular cleaning of the honeycomb ceramic balls can extend the service life of RTO.

[0082] The above are only preferred implementations of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A method for preparing an amine-containing organic adsorption material, characterized in that: include: S1, mixing ceramic powder with polydiallyldimethylammonium chloride solution, washing and drying to obtain pretreated ceramic powder; S2, mixing ethanol, deionized water, ammonia water, and hexadecyltrimethylammonium bromide to obtain a composite solution, mixing the pretreated ceramic powder with the composite solution to prepare an impregnation solution; S3, placing the adsorbent ceramic in the impregnation solution and stirring, slowly adding tetraethyl orthosilicate and stirring, and drying; the adsorbent ceramic is a honeycomb ceramic ball; S4. Mixing the hydrogen peroxide solution with the metal sulfate solution, placing the dried adsorption ceramic in the mixed solution for modification, drying the modified adsorption ceramic, calcining it, and cooling it to obtain an adsorption ceramic with a mesoSiO2 adsorption layer formed on the surface.

2. The method for preparing an amine-containing organic adsorption material according to claim 1, characterized in that: In S1, the ceramic powder is obtained by ball milling a ceramic block, and the particle size of the ceramic powder is 0.1 to 1 mm; The ceramic powder is mixed with the polydiallyldimethylammonium chloride solution and stirred at room temperature for 1 to 2 hours.

3. The method for preparing an amine-containing organic adsorption material according to claim 1, characterized in that: In S1, the solid-liquid mass ratio of the ceramic powder to the polydiallyldimethylammonium chloride solution is 1:(10-20); the mass concentration of the polydiallyldimethylammonium chloride solution is 1.0 g / L.

4. The method for preparing an amine-containing organic adsorption material according to claim 1, characterized in that: In S1, after the ceramic powder and the polydiallyldimethylammonium chloride solution are stirred, they are centrifuged and washed 2 to 3 times, and dried at 60 to 80° C. for 12 hours to obtain the PDDA-pretreated ceramic powder.

5. The method for preparing an amine-containing organic adsorption material according to claim 1, characterized in that: In the composite solution of S2, the mass ratio of ethanol, deionized water, ammonia water and hexadecyltrimethylammonium bromide is (200-300):350:5:(3-5); The mass ratio of the pretreated ceramic powder to the compound solution is 1:(40-50).

6. The method for preparing an amine-containing organic adsorption material according to claim 1, characterized in that: In S3, the honeycomb ceramic ball is a spherical ceramic structure with a diameter of 50 to 100 mm, and is provided with a mutually intersecting channel structure inside, and the channel diameter is 8 to 12 mm.

7. The method for preparing an amine-containing organic adsorption material according to claim 1, characterized in that: In S3, the mass ratio of tetraethyl orthosilicate to ceramic powder is 1:(2-4); The stirring is performed in a clockwise direction at a uniform speed for 2 to 5 hours at a temperature of 50 to 60° C. After the stirring is completed, the mixture is washed with deionized water for 2 to 3 times at a drying temperature of 120° C. for 12 hours.

8. The method for preparing an amine-containing organic adsorption material according to claim 1, characterized in that: In S4, the volume ratio of the hydrogen peroxide solution to the metal sulfate solution is 1:(1-1.5), the mass concentration of the hydrogen peroxide solution is 15%-25%, and the mass concentration of the metal sulfate solution is 2%-4%; The metal sulfate is cobalt sulfate, nickel sulfate or chromium sulfate.

9. The method for preparing an amine-containing organic adsorption material according to claim 1, characterized in that: In S4, the modification temperature is room temperature and the modification time is 4 to 8 hours; The modified adsorption ceramic is washed, dried and then calcined, wherein the washing process is washing with deionized water for 2 to 3 times, the drying temperature is 120° C., and the drying time is 12 hours; The calcination temperature is 500-600°C and the calcination time is 5-6h.

10. Amine-containing organic adsorption material prepared by the preparation method according to any one of claims 1 to 9.

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