32results about How to "Reduce adsorption cost" patented technology

The invention discloses a method for preparing a biomass charcoal material by utilizing waste durian skin and an application of the biomass charcoal material in adsorbing oils and organic substances. The preparation method specifically comprises the following steps of removing hard outer skin of the durian skin, performing thorough washing, performing dicing, and sequentially performing treatment such as hydrothermal treatment, hot-water-bath soaking, freeze-drying, high-temperature pyrolysis in a nitrogen-gas atmosphere and the like, thereby obtaining the durian skin based biomass charcoal material. After the durian skin based biomass charcoal material is soaked into oil or organic solvents to conduct static and sufficient adsorption, a blocky adsorbent is taken out, so that separation can be realized. Besides, regeneration of the adsorbent can be realized through a method of evaporating the solvent.

The invention discloses a spherical SiO2-based adsorbent adopting a core-shell structure as well as a preparation method and an application of the adsorbent. An MgCl2 aqueous solution and SiO2 micro-spheres are modified with a surfactant respectively, then a modified SiO2 dispersion liquid is mixed with the MgCl2 aqueous solution, meanwhile, a certain amount of stronger ammonia water is dropwise added, the mixture is stirred for a period under the water bath condition, then subjected to suction filtration, washing and drying and finally calcined in a muffle furnace, and the spherical SiO2-based adsorbent adopting the core-shell structure can be obtained. The adsorbent is large in specific surface area, high in adsorption capacity, easy to regenerate and recyclable, and the adsorption cost is reduced. The adsorbent can effectively solve the problem of treatment of dye wastewater and is potentially applied to fields of chemical engineering, petroleum, food, light industries, environmental protection and the like.

The invention relates to a method for adsorption deacidification of diesel oil and production of bentonite naphthenate. The method is characterized in that the diesel oil is deacidified by calcium hydroxide-loaded active argil serving as an adsorbent and the adsorbent after deacidification is recycled at the same time so as to prepare the bentonite naphthenate, and specifically comprises the following steps of: adding the calcium hydroxide-loaded active argil into the primarily deacidified diesel oil, performing deacidification under stirring and filtering to obtain the finished diesel oil with the acid value of less than 2mg KOH / 100mL and a filter cake; adding the filter cake into the raw diesel oil with the acid value of 15 to 50mg KOH / 100mL, performing deacidification under stirring and filtering to obtain the primarily deacidified diesel oil and a bentonite naphthenate filter cake, and returning the primarily deacidified diesel oil for secondary deacidification; and recycling residual diesel oil from the bentonite naphthenate filter cake and drying and crushing the bentonite naphthenate filter cake to obtain the bentonite naphthenate with the organic content of 15 to 30 percent. Compared with the prior art, the method has the advantages that: the adsorbent is relatively cheap calcium hydroxide-loaded active argil, and the using amount of the adsorbent is below 1 percent. During the deacidification, the bentonite naphthenate is produced, and therefore the pollution of solid waste is avoided and certain economic benefits are made.

The invention discloses an enhanced magnetic adsorbent, which is prepared by the following steps: S1, adding Fe3O4 magnetic nanoparticles into an ethanol solution, carrying out ultrasonic dispersion,adding an ammonia water solution and distilled water, carrying out ultrasonic dispersion, and dropwisely adding TEOS to obtain Fe3O4@SiO2, S2, dissolving chitosan in acetic acid to obtain a chitosan solution, adding Fe3O4@SiO2 nanoparticles, stirring to obtain a suspension, dispersing the suspension in a mixed solution of cyclohexane and span80, and dropwise adding a glutaraldehyde solution to obtain a magnetic chitosan microsphere solution, and S3, adding an initiator VA-044, uniformly mixing, adding a cationic monomer, sealing, and initiating copolymerization under ultraviolet light to obtain the enhanced magnetic adsorbent. The adsorption performance of the chitosan magnetic microspheres can be improved, the chitosan magnetic microspheres can be repeatedly used, and the adsorption costis reduced.

The invention discloses a special organic waste gas purification device for a pipeline of a laboratory ventilation cabinet. The special organic waste gas purification device comprises a waste gas collection system, a waste gas treatment system and a waste gas emission system which are connected sequentially; the waste gas treatment system consists of an air inlet, a purification cabinet and an air outlet; the air inlet is formed in the left lower side of the purification cabinet and connected with the waste gas collection system, the air outlet is arranged on the right side of the purification cabinet and is connected with the waste gas emission system, the purification cabinet is cuboid and has a hollow interior; a deflector plate, a photocatalytic oxidization module and a honeycomb activated carbon adsorption module are arranged in the purification cabinet; the deflector plate is a one-fourth circularly arc-shaped steel plate with the radius of 130mm, the length of the deflector plate is equal to the depth of the purification cabinet and is fixedly arranged on the inner side of the purification cabinet. The device has a simple and reasonable structure, is easy to process and convenient to use, and can effectively purify various waste gases in a laboratory, thus being wide in application range and low in adsorption cost.

The invention provides an adsorbent for purifying VOCs in air. The adsorbent comprises the following raw materials by weight: 160-170 parts of lipase solution, 60-65 parts of activated carbon, 25-30 parts of diatomaceous earth, 18-20 parts of shell powder, 12-15 parts of expanded graphite, 8-10 parts of zeolite powder, 15-18 parts of sepiolite powder, 2-4 parts of alumina, 8-10 parts of ramie fiber, 6-8 parts of loofah fiber and 8-10 parts of fragrant essence powder. Raw materials of the fragrant essence powder include cortex albiziae, fingered citron, polygala, pine needle leaves, apple eucalyptus leaves, lemon grass and fragrant wood leaves. The interaction and the synergistic effect between the raw material components can be achieved by fully utilizing the specific content of each raw material component to prepare the adsorbent according to a specific preparation method, so that the removal rate of the VOCs in the atmosphere by the adsorbent is greatly improved. Compared with the prior art that the activated carbon adsorbent is used, the adsorbent is less in dosage and can greatly reduce the adsorption cost during treatment.

The invention provides a method for fish culture in a paddy field, and belongs to the technical field of agricultural cultivation. The method comprises the following steps of 1) preparing the paddy field; 2) transforming the paddy field; 3) preparing fish culture facilities; 4) transplant rice seedlings; 5) carrying out biological adsorption; 6) carrying out paddy field disinfection; 7) carrying out irrigation and fertilization; 8) selecting stocking fingerlings; 9) carrying out stocking fry disinfection; 10) carrying out stocking; and 11) carrying out feeding management. According to the method, heavy metals in soil and irrigation water of the paddy field are absorbed by adopting a bio-adsorbent, most of the heavy metals in the soil and the irrigation water can be adsorbed, the pollutionof the heavy metals in the soil and the irrigation water in the paddy field is obviously reduced, and the contents of the heavy metals such as plumbum and cadmium in cultured fishes and in rice produced by rice planting are very low and are far lower than the national standard; and on the other hand, the bio-adsorbent is prepared from waste silk frigon and activated carbon, the adsorption cost islow, the source is extensive, the cost is low, and no damage is caused to human and the ecology.

The invention provides a carbon material for heavy metal adsorption and a preparation method and application thereof. By grafting an oxygen-containing group on a carbon material and combining the oxygen-containing group with a phosphorus-containing group, more than 90% of heavy metal ions can be removed in an acidic environment without adjusting the pH value. The method comprises the following steps of oxidizing the carbon material: adding concentrated sulfuric acid into the carbon material, stirring and adding potassium permanganate, adding ice into the solution for quenching, cooling, dropwise adding hydrogen peroxide until the solution becomes bright yellow, stirring, centrifuging, and washing until the pH value is not changed to obtain the carbon oxide material, and performing the phosphorylation of the carbon oxide material: taking the carbon oxide material, phosphorous acid and phosphorus trichloride, stirring, heating, mixing, cooling, adding water after cooling, heating to a certain temperature, refluxing for a certain time, carrying out suction filtration, collecting solids, adding water, heating to a certain temperature, refluxing for a certain time, cooling to a certaintemperature, filtering while the solids are hot, collecting the solids, and washing until the pH value is not changed to obtain a phosphorylated carbon oxide material.

The invention discloses a SiO2@MgSi0.84O2.68 core-shell structure adsorbent, as well as a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing a silica solution and activated magnesium oxide according to the mass ratio that SiO2:MgO is 5:1; adding in water, and stirring into a paste; adding in spherical SiO2 and water, and stirring again; then stirring for 20 min at the rotating speed of 1800 rmp in a rotary stirring machine; drying at a temperature of 120 DEG C; calcining the dried powders for 3 hours at a temperature of 500-600 DEG C in a muffle furnace to obtain the novel core-shell structure adsorbent. The core-shell structure adsorbent is large in specific surface area, high in adsorption capacity, low in adsorption cost, easy for regeneration and good in recycling effect, so that the core-shell structure adsorbent can effectively solve the problem of dye wastewater treatment, and has the potential application in the industries of food, medicine, petroleum, cosmetics and the like.

The invention belongs to the technical field of carbon emission reduction, and particularly relates to a system and method for directly capturing carbon dioxide in air by using clean energy, and the system comprises an energy supply / storage module, a pretreatment module, an adsorption thermal desorption module and a CO2 storage module; the energy supply / storage module is used for providing electric energy and heat energy for the whole system through clean energy; the collected redundant clean energy is stored in the battery; the pretreatment module is used for capturing and pretreating the sucked air; the adsorption and thermal desorption module is used for adsorbing carbon dioxide in air and thermally desorbing adsorbed CO2; and the CO2 storage module is used for storing CO2 after thermal desorption. A large amount of surplus clean energy can be utilized, a large amount of light abandoning and wind abandoning phenomena are caused by incomplete coverage of a power grid structure in many areas with abundant clean energy, the system is deployed in the areas, the clean energy which is not easy to collect and transmit is used for supplying energy to the system, and the cost is greatly reduced.

The invention discloses a SiO2@MgSi0.84O2.68 core-shell structure adsorbent, as well as a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing a silica solution and activated magnesium oxide according to the mass ratio that SiO2:MgO is 5:1; adding in water, and stirring into a paste; adding in spherical SiO2 and water, and stirring again; then stirring for 20 min at the rotating speed of 1800 rmp in a rotary stirring machine; drying at a temperature of 120 DEG C; calcining the dried powders for 3 hours at a temperature of 500-600 DEG C in a muffle furnace to obtain the novel core-shell structure adsorbent. The core-shell structure adsorbent is large in specific surface area, high in adsorption capacity, low in adsorption cost, easy for regeneration and good in recycling effect, so that the core-shell structure adsorbent can effectively solve the problem of dye wastewater treatment, and has the potential application in the industries of food, medicine, petroleum, cosmetics and the like.

The invention provides an organic waste gas purification adsorbent. The adsorbent includes the following raw materials by weight: 120-145 parts of lipase solution, 50-55 parts of coconut shell charcoal, 20-22 parts of diatomaceous earth, 13-15 parts of shell powder, 10-12 parts of expanded graphite, 6-8 parts of zeolite powder, 5-7 parts of attapulgite powder, 5-7 parts of bentonite, 6-8 parts oframie fiber and 4-7 parts of loofah fiber. The interaction and the synergistic effect between raw material components can be achieved by fully utilizing the specific content of each raw material component to prepare the adsorbent according to a specific preparation method, so that the removal rate of VOCs in the atmosphere by the adsorbent is greatly improved. Compared with the prior art that theactivated carbon adsorbent is used, the adsorbent is less in dosage and can greatly reduce the adsorption cost during treatment.

The invention discloses an efficient and energy-saving device for treating sewage with charcoal. The device mainly comprises a first sedimentation tower, a second sedimentation, a sterilization tank and a backwash tank, wherein the first sedimentation tower comprises a mud scraping mechanism, a filtering screen and an impurity cleaning mechanism; the second sedimentation comprises an adsorption tube, a second rotating rod for stirring and pushing wastes, and a waste tank mounted at the bottom of the second sedimentation tower; a plurality of progressive fan blades are mounted on the second rotating rod; the second sedimentation tower communicates with the waste tank through a baffle plate which is arranged at the bottom of the second sedimentation tower; the adsorption tube is an arch-shaped pipeline which is composed of a plurality rows of U-shaped tubes in a communication manner; the sterilization tank comprises a plurality of sterilization rods which are arranged at the top and thebottom of the sterilization tank in a staggered manner and a water outlet tube which is arranged on a side surface of the sterilization tank; and the backwash tank comprises a water pump and an air pump. The device is high in sewage treatment efficiency, low in cost and applicable to wide popularization.

The invention relates to the technical field of composite adsorption materials, and discloses a magnetic composite adsorption material based on Fe3O4-Co-based metal organic frameworks (MOFs), and a preparation method of the magnetic composite adsorption material. The magnetic composite adsorption material comprises the following formula raw materials: a Co-tetra(formate)azobenzene MOFs material, FeCl3, Fe2SO4 and a reducing agent. According to the magnetic composite adsorption material based on the Fe3O4-Co-based MOFs and the preparation method of the magnetic composite adsorption material, the Co-tetra(formate)azobenzene MOFs material has a uniform particle size and a good core-shell network structure; the MOFs material is regulated and controlled by a highly controllable synthesis method, so that the magnetic composite adsorption material has a huge specific surface and a rich and regular pore channel structure; through an adsorption flocculation effect, the magnetic composite adsorption material has a good adsorption effect on organic pollutants and has a certain flocculation adsorption effect on algae; Fe3O4 nano particles with excellent magnetism uniformly grow on the surfaceand in pore channels of the Co-tetra(formate)azobenzene MOFs material, so that the Fe3O4 nano particles are prevented from being agglomerated into macromolecular particles; and in addition, the magnetic composite adsorption material can be recovered by magnetic adsorption through an additional magnetic field and magnetic effect.

The invention discloses a solvent recovery cleaning device, and belongs to the technical field of solvent recovery. The solvent recovery cleaning device comprises a water tank for storing water, an air pipe, a first fan, a second fan and a hot air generating device; activated carbon to be cleaned is placed in the water tank; one end of the air pipe is communicated with the water tank; the air outlet end of the first fan is communicated with the other end of the air pipe; the air outlet end of the second fan faces the water tank; and the output end of the hot air generating device is connectedwith the air inlet end of the second fan. Therefore, compared with the prior art, the solvent recovery cleaning device, has the advantage of low adsorption cost.

The invention relates to an electrospun fiber membrane and a preparation method thereof, in particular to a positive-electric particle adsorption membrane prepared by using a sulfonated polyaryletherketone (SPEK-C) material and an electrospinning preparation method thereof. The method comprises the basic steps that concentrated sulfuric acid is used for sulfonating a polyaryletherketone (PEK-C) material, deionized water is used for separating the sulfonated polyaryletherketone (SPEK-C) material, N-methylpyrrolidone (NMP) is taken as a solvent to dissolve the SPEK-C to prepare an electrospinning liquid, and finally the SPEK-C fiber membrane for adsorption is prepared by an electrospinning device with a roller. The degree of sulfonation of SPEK-C is deepened with the sulfonation time, and the adsorption capacity is also increased, that is to say that an adsorption active site can be controlled by adjusting a sulfonation parameter; the SPEK-C fiber membrane can be desorbed and regeneratedthrough a desorbent, and the electrospun fiber membrane can be recycled and used many times, is environmentally friendly, and greatly reduces the adsorption cost.

The invention discloses a material taking mechanism and an automatic assembling device for an assembling component. The material taking mechanism comprises a base block, a clamping assembly arranged on the base block and an adsorption assembly arranged in the clamping assembly, wherein the clamping assembly is used for clamping a first assembled part, and the adsorption assembly is used for adsorbing and installing a second assembled part on the first assembled part. The automatic assembling device for the assembling component comprises a material separating mechanism, an assembling mechanismand a moving mechanism, and the assembling mechanism comprises the material taking mechanism. According to the material taking mechanism of the structure, the adsorption assembly is arranged in the clamping assembly, in the material taking process of the material taking mechanism, the second assembled part can be adsorbed on the first assembled part, and the assembling time and assembling cost arereduced. Because the automatic assembling device for the assembling component comprises the material taking mechanism, the automatic assembling device naturally has all the advantages brought by thematerial taking mechanism.

The invention provides a high-efficiency high-temperature activated carbon adsorbent. Raw materials of the adsorbent comprise activated carbon and lipase liquid, wherein the mass ratio of the activated carbon to the lipase liquid is 1:(10-20); and the lipase liquid is lipase liquid secreted during mixed fermentation culture of pseudomonas putida, pseudomonas fluorescens and denitrifying bacteria.According to the adsorbent disclosed by the invention, the adopted lipase liquid is the lipase liquid secreted by mixed fermentation of the pseudomonas putida, pseudomonas fluorescens and denitrifyingbacteria on a culture medium added with industrial wastewater. The lipase liquid can adapt to an environment of the industrial wastewater in the culture medium, is applicable to high-temperature conditions, can still maintain extremely high activity under the high-temperature conditions, and has stability. The lipase liquid has excellent adsorption effects on heavy metal ions and organic matters.The activated carbon adsorbent prepared by performing synergistic matching on the lipase liquid with the characteristics and the activated carbon has excellent high temperature resistance.

The invention relates to the technical field of wastewater treatment, in particular to an adsorption material and a preparation method and application thereof, and the adsorption material is mainly obtained by modifying a solid catalyst through alkali and lanthanum ions; the solid catalyst is prepared from the following main components: SiO2, Al2O3 and Fe3O4. The raw material of the adsorption material is the Fischer-Tropsch synthesis waste catalyst, the modified Fischer-Tropsch synthesis waste catalyst can be used as an adsorbent for wastewater treatment, the adsorption cost is low, and fluorine ions in coal chemical wastewater can be effectively adsorbed.

The invention discloses a rural water-quality-based water supply and purification integrated system for energy conservation and emission reduction. The rural water-quality-based water supply and purification integrated system for energy conservation and emission reduction comprises a pretreatment system (2), a heavy metal ion treatment system (5), a water softening system (9) and an ultrafiltration system (14), wherein the water softening system (9) comprises an activated carbon filter layer (10) and a resin softening filter layer (12); the heavy metal ion system (5) consists of an adsorptionmain body (6), a filter screen (7) and a carrier (8); and the adsorption main body (6) consists of at least three adsorption layers which are successively connected in a stacked manner or has an integrated cylindrical structure; and an adsorbing material comprises KDF55 alloy or KDF55 alloy and one or more of graphene oxide, activated carbon, attapulgite clay and polyacrylic acid. Water-quality-based water supply can be realized, heavy metal ions, microorganisms and other impurities in water can be removed effectively, water source purification is classified into irrigation water, toilet washing water, washing water and drinking water, the system is simple to operate and low in cost, and resources are saved.

The invention relates to the technical field of composite materials, in particular to a heteroatom-rich functionalized graphene oxide composite material and a preparation method and application thereof. The composite material is effectively covalently coupled by the organic molecule 2-amino-1,3,4-thiadiazole rich in sulfur / nitrogen and graphene oxide, and the obtained composite material has a stable structure and good selectivity. The heteroatom functionalized graphene composite material has introduced heteroatom functional groups, has abundant adsorption active sites, can coordinate and chelate with heavy metal ions, realize the adsorption of heavy metals, and has good reusability.

The invention relates to the technical field of waste biomass resource utilization, in particular to a method for preparing porous biochar through ionic liquid modified waste biomass low-temperature pyrolysis, the porous biochar and application of the porous biochar, and the porous biochar is prepared through the steps of mixing, co-pyrolysis, extraction, filtration, freeze drying, rotary evaporation recycling and the like with waste biochar and ionic liquid as reactants. And the charcoal product with large surface area, high porosity and multiple surface functional groups is prepared at a lowpyrolysis temperature. Compared with the prior art, the method has the advantages that the waste biomass is used as the raw material, so that waste resource utilization is realized; the pyrolysis temperature is low, the residence time is short, and the energy consumption loss is reduced; the specific surface area and the porosity are improved while functional groups on the surface of the biocharare reserved; the ionic liquid can be recycled after the reaction is finished, so that the preparation cost is further reduced; activation treatment is not needed, operation is convenient, and meanwhile secondary pollution to the environment is avoided; the product can be used for adsorbing CO2 in the atmosphere.

The invention provides an oil and gas separation and purification integration machine. The oil and gas separation and purification integration machine comprises an oil and gas separator and a waste gas purifying processor, the oil and gas separator comprises a box body, the internal of the box body is divided into a flue gas storage box, a mixing and washing box, an oil and gas separation box and an oily water storage box, the flue gas storage box is connected with a gas inlet tube and a water inlet tube, the upper end of the oil and gas separation box is connected with a blower, and the oily water storage box is provided with a water discharge opening; and the waste gas purifying processor comprises a machine box, the internal of the machine box is divided with a photocatalytic oxidation chamber, a plasma treatment chamber and an adsorption chamber, the lower portion of the machine box is connected with a gas feeding pipeline, and the upper portion of the machine box is connected with a gas outlet. The oil and gas separation and purification integration machine separates oil and gas to avoid obstruction, recovers separated oil to save the cost, improves the structure layout of the photocatalytic oxidation chamber to realize full proceeding of the photocatalytic oxidation reaction, changes the plasma chamber to a plate structure from a honeycomb structure to realize full low-temperature plasma treatment, and adopts active carbon and oxygen depolymerization nano-particle mixed adsorption to reduce the adsorption cost.

The invention discloses a semiconductor single crystal silicon growth device, and belongs to the field of semiconductor manufacturing. The semiconductor single crystal silicon growth device comprises a single crystal silicon furnace body, and a direction adjusting adsorption cylinder located between a graphite heater and a silicon melting crucible is fixedly installed in the single crystal silicon furnace body. An isolation effect can be achieved through the direction adjusting adsorption cylinder, such that the SiO gas cannot approach the graphite heater, and less carbon monoxide is generated. An X-type zeolite molecular sieve, a micro-porous one-way adsorption plate and a reflux gas pump group are matched to perform adsorption circulation on the mixed gas flow on the upper side in the single crystal silicon furnace body. The air flow on the periphery of crystalline silicon is increased while carbon monoxide is effectively removed, convection is formed with introduced argon, the generated carbon monoxide is dispersed and isolated, carbon generation is reduced, and pollution of carbon to the crystalline silicon is reduced. Therefore, the preparation quality of a single crystal silicon rod is improved, the conductive quality of the single crystal silicon rod is improved, the rework rate is reduced, and the economic benefit of manufacturing of the single crystal silicon rod is improved.

The invention provides a multi-core multi-variable metal organic framework material and its synthesis and application. The metal organic framework material, its molecular formula is {(NH 2 (CH 3 ) 2 )[W 9 (μ 3 -OH) 2 (μ 4 -OH)(X) 2 (Y) 8 (Z)]} n ; Among them, W is Co 2+ or Ni 2+ ; X is 4,4',4"'-(pyridine-2,4,6-triyl)tribenzoic acid, phenyl-1,3,5-tribenzoic acid, 4,4',4"-all Triazine‑2,4,6‑triylbenzoic acid; Y is isonicotinic acid, trifluoroisonicotinic acid, trimethylisonicotinic acid; Z is terephthalic acid, naphthalene dicarboxylic acid, thiophenedicarboxylic acid, Dibromobenzoic acid; n is the number of repeating units. The metal organic framework material can selectively adsorb acetylene in carbon dioxide. And it can be used repeatedly, the adsorption cost is low, and it has a great application prospect in the industrial purification of acetylene and the recovery of acetylene.

The invention discloses a semiconductor single crystal silicon growth device, which belongs to the field of semiconductor manufacturing. A semiconductor single crystal silicon growth device includes a single crystal silicon furnace body, and a graphite heater and a silicon melting furnace are fixedly installed in the single crystal silicon furnace body. The direction-adjusting adsorption cylinder between the crucibles can be used for isolation by adjusting the direction of the adsorption cylinder, so that SiO gas cannot be close to the graphite heater, thereby reducing the generation of carbon monoxide, and through X-type zeolite molecular sieves, microporous one-way adsorption plates and reflux With the cooperation of the air pump group, the mixed airflow inside the monocrystalline silicon furnace body can be adsorbed and circulated. While effectively removing carbon monoxide, the airflow around the crystalline silicon can be increased to form convection with the incoming argon gas, and the generated Carbon monoxide is dispersed and isolated to reduce carbon generation, reduce carbon pollution to crystalline silicon, improve the preparation quality of single crystal silicon rods, and then improve its electrical conductivity, reduce rework rates, and improve the economic benefits of its manufacturing.

The invention discloses a preparation method of an adsorbing material for extracting perfluorooctanoic acid. The preparation method of the adsorbing material for extracting the perfluorooctanoic acid comprises the following steps of (1): preparing a water phase; (2), preparing an oil phase; (3), carrying out a suspension polymerization reaction; (4), carrying out a chloromethylation reaction; (5), carrying out an amination reaction. The preparation method of the adsorbing material for extracting the perfluorooctanoic acid has the advantages that a product is high in adsorptive capacity and long in service life.