140results about How to "Improve catalytic stability" patented technology

The invention discloses a preparation method and application of a zinc-manganese bimetal organic framework derived composite nano-enzyme, and belongs to the technical field of nano-materials. Zinc-manganese bimetal organic framework nanoparticles prepared by reacting ZIF-8 with manganese (III) acetylacetonate are used as a template, and are calcined at different temperatures in a tubular furnace to obtain zinc-manganese bimetal organic framework derivative composite nano-enzymes with different morphologies. The nano enzyme has peroxidase-like activity, glutathione peroxidase-like activity and catalase-like activity, and has a wide application prospect in anti-tumor treatment.

The invention provides a supported IrOx catalyst as well as a preparation method and application thereof. The supported IrOx catalyst comprises an oxide carrier and an active component supported on the carrier, the active component comprises an Ir elementary substance and amorphous IrOx coated on the surface of the Ir elementary substance; and the crystal structure of the IrOx is long-range disordered and short-range ordered. The preparation method of the supported IrOx catalyst is convenient to implement, high in reproducibility and beneficial to industrial preparation and production, gram-level batch preparation can be achieved under the laboratory condition, and possibility is provided for large-scale preparation of the low-cost, high-activity and high-stability proton exchange membrane water electrolysis hydrogen production anode catalyst.

The invention belongs to the technical field of environmental rock soil, and particularly relates to a preparation method of zeolite-magnetic iron oxide and application of the zeolite-magnetic iron oxide in catalyzing sodium percarbonate to repair petroleum hydrocarbon polluted soil. The specific method comprises the following steps: carrying out alkali treatment on zeolite, and then carrying out heat treatment to obtain alkali-heat combined modified zeolite; extracting an iron element in the iron-containing by-product with acid and preparing ferric hydroxide colloid; and uniformly mixing the alkali-heat combined modified zeolite with the ferric hydroxide colloid, carrying out solid-liquid separation, and then carrying out heat treatment and hydrogen reduction treatment to obtain the zeolite-magnetic iron oxide, the application specifically comprises the following steps: uniformly mixing sodium percarbonate, tween-80, silica sol and water to prepare a turbid solution A; uniformly mixing zeolite-magnetic iron oxide, organic acid, silica sol and water to prepare a turbid solution B; and uniformly mixing the turbid liquid B with the petroleum hydrocarbon polluted soil, then adding the turbid liquid A, uniformly mixing, and maintaining for 12-15 days to finish the remediation.

The invention relates to a preparation method and application of a hollow nanorod array oxygen evolution electrode, and belongs to the field of hydrogen production by alkaline electrolysis of water. The self-supporting nickel-iron double-metal hydroxide nanosheet coated cobalt hydroxide hollow nanorod array oxygen evolution electrode is obtained through a continuous electro-deposition method; foamed nickel is used as a substrate, and catalytic active components loaded on the substrate are cobalt hydroxide and ferro-nickel double-metal hydroxide; a hollow nanorod structure vertically grows on the surface of the foamed nickel substrate, and the hollow nanorod structure comprises a hollow nanorod-shaped cobalt hydroxide layer located in the hollow nanorod structure and a plurality of layers of nickel-iron double-metal hydroxide nanosheets wrapping the surface of the hollow nanorod-shaped cobalt hydroxide layer; the diameter of the hollow nanorod is 0.2-1 micron, and the length of the hollow nanorod is 2-3 The electrode provided by the invention has unique morphology and good oxygen evolution catalytic activity.

The invention provides an anode catalyst, an electro-catalysis system containing the anode catalyst and a method for producing hydrogen through electro-catalysis ethylene glycol coupled seawater electrolysis. The anode catalyst includes a foam metal as a substrate material; the MCo2O4 spinel oxide is loaded on the foam metal; the palladium nano particles are loaded on the MCo2O4 spinel oxide; wherein M represents metal Mn, Fe, Ni, Cu or Zn. The anode catalyst is applied to hydrogen production through electrocatalysis of ethylene glycol coupled with seawater electrolysis, and shows relatively high selectivity, catalytic activity and stability, which are specifically embodied in that when the industrial-grade current density (600mA cm < 2 >) is reached, the working voltage is only 1.14 V; when the ethylene glycol is completely electrolyzed, the yield of the glycollic acid is as high as 92.6%; meanwhile, the anode catalyst can realize stable electrolysis for more than 100 hours under a seawater condition, and is superior to all current palladium-based ethylene glycol oxidation catalysts.

The invention discloses an iron monatomic catalyst as well as a preparation method and application thereof, and belongs to the technical field of catalyst preparation. Porous amidoximation polyacrylonitrile is prepared from polyacrylonitrile powder by combining gelation, a non-solvent phase separation process and an amidoximation reaction, then the porous amidoximation polyacrylonitrile is soaked in a metal salt solution to obtain porous amidoximation polyacrylonitrile chelated with iron ions and zinc ions, and finally the high-temperature pyrolysis process is performed. The porous metal chelate precursor is converted to a porous iron monatomic catalyst. The prepared catalyst has high specific surface area and abundant three-dimensional continuous hierarchical porous structures, contains abundant Fe-N2O2 catalytic active sites, and can efficiently catalyze cathode oxygen reduction reaction in fuel cells and metal-air cells.

The invention provides a preparation method of an oxygen-defect-enriched copper-doped manganese dioxide catalyst, which is characterized in that potassium permanganate and copper nitrate are used as precursors, oxalic acid is used as a reducing agent, and an oxygen-defect-enriched copper-doped manganese dioxide material is synthesized through a redox coprecipitation method. A series of characterization proves that the composite material is successfully synthesized and shows excellent low-temperature activity of catalytic oxidative degradation of toluene due to the fact that the specific surface area of the catalyst is increased due to the coralline porous form of the composite material, and more reaction active sites are provided by the synergistic effect of oxygen deficiency and copper species. The catalyst has excellent performance in 12-hour stability and water vapor resistance tests, and has the advantages of stability, high efficiency and the like.

The invention discloses a preparation method of an aluminum ash-molecular sieve co-supported active metal multifunctional catalyst and application of the aluminum ash-molecular sieve co-supported active metal multifunctional catalyst in tar cracking, and the preparation method comprises the following steps: uniformly mixing activated aluminum ash and a molecular sieve to prepare an aluminum ash-molecular sieve co-carrier; active metal and the aluminum ash-molecular sieve co-carrier are added into a dispersing agent, the active metal is loaded on the co-carrier through auxiliary methods such as ultrasonic treatment, and a solid is obtained after redundant dispersing agent is removed; and drying the solid, and calcining in an inert atmosphere to prepare the aluminum ash and molecular sieve co-supported catalyst. According to the invention, the aluminum ash and the HZSM-5 molecular sieve are taken as raw materials of a co-carrier, a multifunctional series Ni-based catalyst (Ni-Fe / ASA-HZSM-5 catalyst) for preparing high-quality hydrogen-rich gas through pyrolysis of biomass and by-products thereof is successfully synthesized, hydrogen-rich gas can be selectively produced, and the highest yield is up to 80%.

The invention belongs to the technical field of materials, and particularly relates to a CuMn bimetallic nano-enzyme, a preparation method of portable hydrogel of the CuMn bimetallic nano-enzyme and application of the portable hydrogel in ascorbic acid detection. A preparation method of the portable hydrogel ball comprises the following steps: preparing a CuMn bimetallic nano-enzyme into a turbid liquid, ultrasonically dispersing sodium alginate into the CuMn bimetallic nano-enzyme turbid liquid, sucking sol by using a dropper, putting the sol into a tube cover of a plastic centrifugal tube, dropwise adding a calcium chloride solution, and continuously shaking to form the hydrogel ball. The CuMn bimetallic nano-enzyme material disclosed by the invention has rich active sites and a relatively large specific surface area, and the material has a relatively low detection limit on ascorbic acid detection. The hydrogel can immobilize the enzyme and can improve the catalytic activity and stability of the enzyme. The hydrogel has porosity and can promote molecular diffusion, and the hydrogel is very perfect as a substrate due to optical clarity. And the color change of the device can be combined with a smart phone to carry out on-site portable visual detection.

According to the nickel-based catalyst and the preparation method and application thereof, through Ga modification, the methane cracking depth can be reduced, and then carbon deposition is effectively inhibited; ceO2 oxygen vacancies can effectively activate CO2, the generated intermediate oxygen species O further reacts with deposited carbon so as to achieve the purpose of carbon cleaning, the GaxNi / CeO2 catalyst is prepared by adopting a urea homogeneous precipitation method, 1000-hour long-term stable catalytic conversion of the nickel-based catalyst in a carbon dioxide methane dry reforming reaction is achieved, and the catalyst has the advantages of simple process, low cost and high efficiency. The nickel-based catalyst prepared by the method can keep good catalytic stability.

The invention discloses a metal-free catalyst, a preparation method and application of the metal-free catalyst in preparation of benzyl alcohol through transfer hydrogenation of biomass-based benzaldehyde, and the catalyst is a nitrogen-doped carbon catalyst; in the catalyst, nitrogen is used as a Lewis alkaline site, and does not contain a Lewis acidic site and a # imgabs0 # acidic site. According to the preparation method of the metal-free nitrogen-doped carbon-based catalyst, the metal-free nitrogen-doped carbon-based catalyst (MF-NC) can be prepared through solvothermal self-assembly and pyrolysis processes by virtue of a structure regulator and taking a ZIF material as a sacrificial template, the preparation process is simple, the surface appearance is controllable, and the metal-free nitrogen-doped carbon-based catalyst has a relatively high specific surface area. The obtained MF-NC can efficiently and selectively convert benzaldehyde into benzyl alcohol through a Lewis alkaline site mediated MPV transfer hydrogenation reaction by taking cheap and renewable bioethanol as an in-situ hydrogen donor and a reaction solvent.

The invention discloses a preparation method and application of a carbon-based single-atom oxygen reduction reaction electrocatalyst, using dopamine functionalized polypyrrole nanoparticles as a skeleton material, ethylenediaminetetraacetic acid and bipyridine as ligands, and forming a multi-level stable loaded complex with Fe-O and Fe-N coordination structure on the skeleton material through dynamic timing ligand regulation, gradual temperature increase and coordination time control, and then the obtained complex-loaded polypyrrole nanoparticles are subjected to 200-300°C low-temperature pre-calcination, corrosive gas etching and 500-900°C high-temperature step-by-step calcination treatment to stably generate FeN4 / Fe2O3 active site structure linked by N-Fe-O bridge bonds, and at the same time obtain a rich pore structure to optimize the contact between electrolyte and active site, and finally prepare a carbon-based single-atom oxygen reduction reaction electrocatalyst. The oxygen reduction reaction electrocatalyst prepared by the present invention exhibits excellent catalytic activity and catalytic stability.

The invention relates to the technical field of carbon dioxide dealkylation, and discloses a catalyst for removing hydrocarbon impurities in carbon dioxide and a preparation method of the catalyst. According to the catalyst for removing hydrocarbon impurities from carbon dioxide, active components are loaded on composite carrier particles; the composite carrier particles are obtained by loading a catalytic promoter cerium oxide on composite aerogel, grinding and sieving; the composite aerogel is prepared from a coagulant aid and at least two aerogel precursors by a sol-gel method. The preparation method of the catalyst for removing hydrocarbon impurities in carbon dioxide comprises the following preparation steps: 1) preparing composite aerogel from an aerogel precursor and a coagulant aid through a sol-gel method; 2) soaking the composite aerogel in a cerium nitrate solution, naturally airing, drying, roasting, grinding and sieving to obtain composite carrier particles; and 3) dipping the composite carrier particles in a mixed solution of active components, standing, drying and roasting to obtain the catalyst for removing hydrocarbon impurities from carbon dioxide.

The invention discloses a preparation method and application of a dimethyl ether carbonylation catalyst, and belongs to the field of industrial catalysis. According to the method, monobasic inorganic acid and polybasic carboxylic acid are respectively used for preparing a wet material, then the monobasic inorganic acid and the polybasic carboxylic acid are mixed together and kneaded together, and finally the formed H-MOR molecular sieve catalyst is prepared through the procedures of extrusion molding, exchange, drying and roasting in sequence. The method is beneficial to improving the strength and diffusivity of the catalyst, so that the catalytic activity and stability of the catalyst are improved. In the reaction of preparing methyl acetate through dimethyl ether carbonylation, the catalytic activity and the stability are both improved.

The application discloses a kind of delta-MnO2-GO catalyst and its preparation method and application in room temperature formaldehyde degradation, it is related to inorganic catalyst technical field.The preparation method of delta-MnO2-GO catalyst of the application can significantly limit the growth of manganese dioxide nanosheet by doping with low amount of GO, to manufacture abundant mass transfer transmission channel, delta-MnO2-GO catalyst presents unique two-dimensional crown structure, two-dimensional coral-like hierarchical pore structure delta-MnO2 nanorod is uniformly dispersed on the GO of plane structure, greatly promote the exposure of catalytic site and the mass transfer of reactant, produce a large number of surface active oxygen ROS and hydroxyl radical-OH, greatly maintain the excellent catalytic activity and stability to HCHO degradation, stably realize nearly 100% HCHO elimination at room temperature.

The invention provides a smoke purification catalyst as well as a preparation method and application thereof. The smoke purification catalyst comprises an active metal and an active compound, the active metal comprises Pt and Pd; the active compound comprises modified aluminum oxide, a modified cerium-zirconium oxygen storage material and a molecular sieve. The flue gas purification catalyst provided by the invention has excellent catalytic activity and high-temperature-resistant stability through synergistic cooperation of the active metal and the active compound component, has a remarkable purification effect on CO and hydrocarbon, has the purification efficiency of 99% or more and can still reach 98% or more after aging treatment, and has a good purification effect on high-concentration flue gas in a smoking working condition. Long-term stable operation can be achieved, and the overall purification efficiency is 95% or above.

The application discloses a preparation method of a palladium-iron-based catalyst. A carbon carrier is added into an iron precursor solution, and after impregnation, solid-liquid separation, washing, drying and calcination in an oxygen-containing atmosphere, an iron and carbon mixed carrier is obtained. Then the mixed carrier is impregnated in a palladium precursor solution, and after separation, washing and drying, the palladium-iron-based catalyst is obtained after reduction. The palladium-iron-based catalyst prepared by the method has high dispersion and stable palladium. In the reaction of selective hydrogenation of phenol to cyclohexanone, the conversion rate of phenol and the yield of cyclohexanone are both higher than 95%, and the catalyst has good catalytic stability.

The invention discloses a rare earth tailing-based aerogel catalyst for refractory coal and a preparation method thereof, and the preparation method comprises the following steps: a, pretreating rare earth tailings rich in cerium oxide to obtain raw material powder; b, carrying out modification treatment on the raw material powder obtained in the step a to obtain modified powder; and c, preparing rare earth tailing-based aerogel from the modified powder obtained in the step b, and grinding to obtain the catalyst. The rare earth tailing-based aerogel catalyst prepared by the invention has a relatively high specific surface area and a rich pore structure, obviously improves the combustion efficiency of fire coal, can be suitable for fire-retardant solid fuel, realizes wide-load stable combustion of fire-retardant coal powder, expands the coal type adaptability of a unit, reduces the use amount of long flame coal, and reduces the production cost. The coking problem is effectively solved.

This invention discloses a two-step hydrothermal method for preparing nickel-iron bimetallic MOF derivatives and its application. By controlling the precursor structure through a two-step hydrothermal strategy, the nickel-iron bimetallic MOF derivative catalyst forms a foam-like hierarchical porous carbon framework. The metal nanoparticles are uniformly dispersed, small in size, and encapsulated by carbon layers, significantly improving the specific surface area and accessibility of active sites. It exhibits excellent hydrogen yield and anti-carbon deposition performance in plastic pyrolysis tar reforming. The synergistic effect of nickel and iron electrons effectively inhibits metal sintering and carbon deposition, and has good catalytic stability. This invention solves the problem in existing nickel-iron bimetallic MOF derivatives where phase separation easily occurs in one-step synthesis due to the difference in nucleation and growth rates between nickel and iron ions and organic ligands, leading to uneven metal distribution, increased particle size, underdeveloped pore structure, and low accessibility of active sites, thus affecting catalytic reforming activity and anti-carbon deposition ability.

The present application relates to a kind of metal single atom and nanoparticle composite catalyst and its preparation method.By the reasonable proportioning of metal salt, dicyanediamine and urea dosage, high loading single atom and nanoparticle composite catalyst is prepared by simple two-step pyrolysis method, the preparation method is simple, metal loading can be controlled, with good reproducibility and applicable to a variety of metal salt (such as Co, Cu, Ni, Fe, Mn, etc.).Single atom and nanoparticle composite catalyst obtained by the present application can construct a large number of active sites, significantly improve the catalytic activity and stability of catalyst, for degrading sulfonamide organic pollutants, quinolone organic pollutants and tetracycline organic pollutants, or for depolymerization lignin, all of which show excellent catalytic activity, and the degradation or depolymerization effect is higher than that of currently reported catalyst.

The invention belongs to the technical field of catalysts, and particularly relates to a composite carrier dehydrogenation catalyst for preparing gamma-butyrolactone through dehydrogenation of 1, 4-butanediol as well as a preparation method and application of the composite carrier dehydrogenation catalyst. According to the composite carrier dehydrogenation catalyst disclosed by the invention, a Y-type molecular sieve / gamma-Al2O3 is used as a composite carrier, and an active component copper oxide is loaded on the composite carrier; wherein the mass ratio of the Y-type molecular sieve to the gamma-Al2O3 is (1-2): 1, the copper element content is 10%-20% according to the weight ratio of the composite carrier, and the zinc element content is 6%-10% according to the weight ratio of the composite carrier. By adopting a composite carrier structure, the dispersity and stability of active metals Cu and Zn are effectively enhanced. The composite carrier dehydrogenation catalyst prepared by the preparation method provided by the invention has the advantages of high catalytic activity, high selectivity and high stability.

The present application belongs to the technical field of electrolytic water electrocatalysis, and relates to a design method of a chromium-doped ruthenium dioxide catalyst and a ruthenium dioxide catalyst. Chromium is used as a doping element to dope a seven-layer RuO2 supercell to obtain surface chromium doping configurations with different spatial arrangement forms under each doping concentration. The ground state surface chromium doping configuration under each doping concentration is selected, the OER free energy path of the seven-layer RuO2 supercell and the ground state surface chromium doping configuration is calculated, and the activity improvement difference of the ground state surface chromium doping configuration is obtained. The spin density distribution of the OER reaction intermediate adsorption structure of the seven-layer RuO2 supercell and the ground state surface chromium doping configuration is obtained, and the site magnetic moment increment and the intermediate magnetic moment increment of the ground state surface chromium doping configuration are obtained. Based on the activity improvement difference, the site magnetic moment increment and the intermediate magnetic moment increment, the doping concentration value range and the spatial arrangement form when the oxygen evolution reaction activity of the ruthenium dioxide is increased are obtained, so as to design the chromium-doped ruthenium dioxide catalyst.

This invention relates to the field of catalyst preparation, and discloses a methanation catalyst, its preparation method and application, and a methanation method. The methanation catalyst contains a catalyst support and a nickel active component. Based on the total mass of the methanation catalyst, the catalyst support comprises 80-90 wt% by mass, and the nickel active component (calculated as oxide) comprises 10-20 wt% by mass. The average mechanical strength of the catalyst support is 35-80 N / mm. The particle mechanical strength dispersion coefficient of the catalyst support is in the range of 0-0.55. The catalyst support has a large specific surface area and pore volume. Combined with the supported nickel active component, it can improve the catalytic activity and selectivity of the catalyst. Simultaneously, the catalyst has high average mechanical strength, resulting in high CO conversion and methane selectivity in the methanation reaction.

The invention relates to a metal oxide loaded monatomic Ru catalyst and a preparation method and application thereof, the preparation method comprises the following steps: mixing salt of metal M with a grinding aid, and then carrying out ball milling to obtain a metal oxide precursor; calcining the metal oxide precursor to obtain a metal oxide MOx; and dissolving the metal oxide MOx in deionized water, adding a ruthenium source and 6-aminocaproic acid under oil bath heating, mixing, adding sodium borohydride, continuously stirring until the reaction is completed, and then washing and drying to obtain the metal oxide loaded monatomic Ru catalyst Ru SAs / MOx. According to the method, the 6-aminocaproic acid is used for assisting the NaBH4 reduction method, monatomic-scale Ru is constructed on the surface of the metal oxide, high-temperature reducing gas calcination is not needed, the method is simple and rapid, the requirements for equipment and raw materials are low, the economic effect is high, Ru is evenly dispersed on the surface of the oxide carrier and does not form clusters, and a large amount of Ru monatomic loaded oxide carriers can be rapidly prepared.

The invention discloses a sulfur-tolerant platinum-based catalyst and a preparation method thereof, and the preparation method of the sulfur-tolerant platinum-based catalyst comprises the following steps: weighing roasted ZrO2 as a carrier, weighing ammonium metatungstate, completely dissolving in deionized water, dropwise adding the solution until the carrier is completely immersed, and carrying out ultrasonic treatment; standing at room temperature, drying, and roasting in air at 500-600 DEG C to prepare a tungsten oxide loaded solid acid composite carrier WO3-ZrO2; and weighing chloroplatinic acid, completely dissolving the chloroplatinic acid in deionized water, dropwise adding the solution into the composite carrier, completely immersing the composite carrier, carrying out ultrasonic treatment, standing at room temperature, drying, and roasting in air at 250-350 DEG C to obtain the sulfur-tolerant platinum-based catalyst. The catalyst is simple in preparation method, has relatively strong tolerance to different sulfur species, and has good low-temperature catalytic performance and catalytic stability to low-carbon alkane.

The present invention provides a method for preparing a rare earth-site-modified hydrotalcite-based oxygen evolution catalyst. The preparation method comprises the following steps: constructing a hydrotalcite precursor with selective metal vacancies by hydrothermal-alkali etching, and then introducing rare earth elements into the hydrotalcite precursor at specific points to obtain a rare earth-precisely modified hydrotalcite-based oxygen evolution catalyst. The hydrotalcite-based oxygen evolution catalyst of the present invention has a stable structure, abundant active sites, excellent oxygen evolution catalytic performance and stability, and has a prospect for large-scale promotion and application.

The invention discloses a copper-silicon catalyst for plasma treatment as well as a preparation method and application of the copper-silicon catalyst. According to the method, a copper-silicon catalyst precursor prepared by a traditional ammonia distillation method is subjected to dielectric barrier discharge plasma treatment in the atmosphere of H2 / Ar and the like, and traditional high-temperature roasting and reduction processes are replaced. According to the method, efficient reduction and high dispersion of copper can be achieved at the room temperature, the Cu < + > / Cu0 proportion is regulated and controlled, and the strong interaction between metal and a carrier is enhanced. The catalyst is used in a reaction for preparing ethylene glycol through hydrogenation of dimethyl oxalate, the activity, selectivity and stability of the catalyst are higher than those of a traditional heat treatment catalyst, the dimethyl oxalate conversion rate reaches up to 100%, the ethylene glycol selectivity is larger than 97%, and the stability reaches 1000 h or above. The method is simple in process, low in energy consumption and environment-friendly, and has a wide industrial application prospect.

The application provides a self-supporting Ni-Fe-Mn oxygen evolution electrocatalyst and a preparation method thereof, and belongs to the technical field of catalytic material preparation. The Ni, Fe and Mn metal raw materials are repeatedly smelted, and after smelting, suction casting is carried out to obtain a cast plate. The cast plate is subjected to homogenization treatment, and then is cut and polished. Finally, etching is carried out in a nitric acid solution to obtain the self-supporting Ni-Fe-Mn oxygen evolution electrocatalyst. The self-supporting electrocatalyst is prepared by the method of arc smelting, heat treatment and chemical etching, and has the advantages of simple preparation process, easy industrialization, adjustable size, excellent stability and excellent OER performance.

The invention discloses a preparation method of a ruthenium-manganese alloy catalytic material, which comprises the following steps: adding ruthenium chloride, manganese acetate and cetyltrimethylammonium bromide into a polyacrylonitrile solution with the mass fraction of 10-12% (the solvent is N, N-dimethylformamide), the mass ratio of ruthenium chloride to polyacrylonitrile is 1: 15, and the mass ratio of manganese acetate to ruthenium chloride is (1-5): 1; the self-supporting RuMn alloy catalyst (C (at) RuMn / CNFs) is prepared by utilizing electrostatic spinning and high-temperature carbonization, and the RuMn alloy particles are wrapped by a plurality of carbon layers, so that the method has the advantages of no need of adopting a binder, no covering of catalytic active sites and no shedding of the RuMn catalyst.

The invention belongs to the technical field of new materials, and discloses a copper-manganese bimetallic fiber catalyst and a preparation method and application thereof.The preparation method specifically comprises the steps that copper ions and manganese ions are loaded on polymer fibers, and copper-manganese-loaded polymer fibers are obtained; s2, roasting the copper-manganese-loaded polymer fiber prepared in the step S1 in an inert gas atmosphere to obtain a copper-manganese bimetallic fiber catalytic material precursor; and S2, carrying out ozone in-situ activation treatment on the copper-manganese bimetallic fiber catalytic material precursor prepared in the step S2 by adopting ozone airflow to obtain the copper-manganese-based fiber catalyst. The prepared catalyst is high in catalytic activity, good in water vapor resistance and high in thermal oxidation stability, in addition, the selection of forms is not limited, the catalyst can be applied in any forms such as disordered fibers, woolen yarns, needle-punched fabrics and knitted fabrics, filling is convenient, and the use depth and range of catalytic materials are greatly widened.