256 results about "Polythiophene" patented technology

The invention relates to the technical field of coating materials, in particular to an anti-corrosion epoxy composite coating and a preparation method thereof. The anti-corrosion epoxy composite coating is prepared from the following raw materials in parts by mass: 40 to 60 parts of epoxy resin, 10 to 20 parts of alkoxy silane, 4 to 6 parts of pigment, 1 to 4 parts of auxiliaries, 2 to 6 parts of solvents, 14 to 18 parts of hexagonal boron nitride type preservatives and 10 to 30 parts of curing agents, and the hexagonal boron nitride type preservatives contain hexagonal boron nitride and polythiophene. According to the anti-corrosion epoxy composite coating, the defect that hexagonal boron nitride particles are prone to agglomeration can be overcome, and the anti-corrosion epoxy composite coating has more excellent anti-corrosion performance.

The invention relates to a low-temperature graphite negative electrode material and a preparation method thereof, and belongs to the technical field of high polymer materials. According to the prepared low-temperature graphite negative electrode material, firstly, the surface of graphite is pre-oxidized through potassium persulfate, phosphorus pentoxide and concentrated sulfuric acid, and then under the action of sodium nitrate, potassium permanganate and hydrogen peroxide, graphite oxide is prepared; then, ammonium molybdate hydrate and thioacetamide are used as a molybdenum source and a sulfur source, graphite oxide is used as a supporting material, a molybdenum disulfide-graphite compound is synthesized, and the conductivity and the cycling stability are improved; secondly, the surface of the negative electrode is coated with amorphous resin carbon / nickel oxide, so that the ion diffusion efficiency of the low-temperature graphite negative electrode material is enhanced, and the electrochemical lithium storage performance is improved in a low-temperature environment; and finally, the surface of the amorphous resin carbon / nickel oxide is coated with a layer of polythiophene film, so that the rate capability of the negative electrode material is improved due to large surface area and high pores.

The invention discloses a composite positive electrode of an aqueous zinc battery, a preparation method of the composite positive electrode and the aqueous zinc battery, and belongs to the field of secondary batteries. Comprising a current collector and a conductive polymer, the conductive polymer is deposited on the current collector; the conductive polymer is selected from at least one of polypyrrole and derivatives thereof, polythiophene and derivatives thereof, and polyaniline and derivatives thereof. The composite positive electrode of the aqueous zinc battery has high conductivity and excellent stability, and the aqueous zinc battery assembled by the composite positive electrode has high specific capacity and good cycle performance.

The invention relates to the technical field of polyether-ether-ketone composite materials, in particular to a conjugated polythiophene-polyether-ether-ketone-based high-antibacterial coating and a preparation method thereof.The preparation method comprises the steps that hydroxyl modified boron nitride with photocatalytic capacity and aminated PEEK are subjected to melt blending to generate chemical bonding, and a BN-OH / PEEK-NH2 composite fine powder material is formed; then carrying out oxidative polymerization on the BN-OH / PEEK-NH2 composite fine powder and a thiophene monomer under the action of an oxidizing agent, carrying out in-situ synthesis to obtain a polythiophene / BN-OH / PEEK-NH2 conjugated composite material, and subsequently spraying the polythiophene / BN-OH / PEEK-NH2 conjugated composite material to the surface of a base material to prepare a composite coating with excellent antibacterial property, high thermal stability and low friction coefficient; the antibacterial rate of the coating on escherichia coli and staphylococcus aureus under illumination reaches 90% or above, and the coating is suitable for the medical antibacterial field.

Provided is a conductive polymer solution capable of providing an electrolytic capacitor having high capacity and exhibiting low ESR characteristics. A conductive polymer solution having a pH of 1.5-5.0 is used, the solution containing 0.01-10% by mass of a polythiophene (A) containing at least one type of structural unit selected from the group consisting of structural units represented by general formula (1) and structural units represented by general formula (2), 0.001-20% by mass of an epoxy compound (B) having at least two or more epoxy groups, and water. In general formulae (1) and (2), R2 represents a hydrogen atom, a methyl group, an ethyl group, a C3-6 linear or branched alkyl group, or a fluorine atom, m represents an integer of 1-10, and n represents 0 or 1. ] # imgabs0 #

The invention discloses an aluminum ion battery positive pole piece, an aluminum ion battery and a preparation method, and belongs to the field of batteries. The positive pole piece of the aluminum ion battery comprises an active substance and a binder, the binder is a mixture of 3, 4-ethylenedioxythiophene: polystyrene sulfonate and a functional agent; the active substance is one of graphite, polytriphenylamine, polydiphenylamine, polythiophene, polypyrrole, polyaniline and graphene; the functional agent is one of tannic acid, polyethylene oxide, sorbitol, polyethyleneimine, glycerol and xylitol. Anions of polystyrolsulfon acid and positive ions of 3, 4-ethylenedioxythiophene molecules form positive and negative electron pairs, so that the adhesive has conductivity; the binder enables the active substances to be mutually connected to form conductive chains through intermolecular acting force, and the conductive chains are mutually contacted to form a conductive network. The positive pole piece adopting the binder has good conductivity, temperature resistance and cohesiveness, and does not react with electrolyte, so that the performance of the aluminum ion battery is improved.

The invention provides an electrochromic film, an electrochromic device and a preparation method of the electrochromic film, and relates to the technical field of electrochromic materials.The preparation method of the electrochromic film comprises the steps that a conjugated polymer is dissolved in a good solvent, and an electrochromic medium is obtained; preparing the electrochromic medium into an electrochromic film by adopting a spin coating method or a blade coating method; the electrochromic film is placed in a dopant solution to be doped, and the final electrochromic film is obtained. The invention provides a novel color changing mode of the polythiophene-based electrochromic film, and can improve the problem of poor bistable performance of the existing polythiophene-based electrochromic film.

The invention belongs to the technical field of self-repairing materials, and particularly relates to a double-microcapsule self-repairing waterborne polyurethane material and a preparation method thereof. Comprising the following steps: ultrasonically dispersing cellulose nanocrystals in deionized water to form a water phase, adding drying oil and lauryl sodium sulfate, and stirring to obtain the drying oil microcapsule taking Pickering emulsion as a template. Preparing a polyvinylpyrrolidone aqueous solution, a non-polar solvent solution of thiophene monomers and an ammonium persulfate aqueous solution; and mixing and ultrasonically dispersing the two, mixing with an ammonium persulfate aqueous solution, stirring and polymerizing to obtain a polythiophene microcapsule suspension after the reaction is completed, centrifuging until the supernatant is colorless, and washing and drying the solid to obtain the polythiophene microcapsule. And finally, adding the two microcapsules into waterborne polyurethane, uniformly mixing, and drying at room temperature to form the double-microcapsule self-repairing waterborne polyurethane material. According to the invention, the self-repairing and mechanical property improvement of the double-microcapsule self-repairing waterborne polyurethane material under room-temperature natural light are realized.

The invention discloses a battery negative electrode material and a preparation method thereof, and relates to the technical field of batteries. The battery negative electrode material comprises an inner core, a titanium dioxide coating layer coated on the surface of the inner core, a lithium titanate coating layer coated on the surface of the titanium dioxide coating layer, a carbon coating layer coated on the surface of the lithium titanate coating layer and a polymer coating layer coated on the surface of the carbon coating layer, the inner core comprises a silicon-based negative electrode material; the polymer coating layer comprises at least one of polyaniline, polythiophene and polypyrrole. Under the action of the four coating layers, the integrity of the silicon-based negative electrode material can be kept, direct contact between the silicon-based negative electrode material and an electrolyte is avoided, side reactions are reduced, the capacity fading of the battery in the charge-discharge cycle process is reduced, and the rate capability and the cycle stability of the battery are improved.

The present application discloses a polythiophene conductive polymer, a positive electrode slurry, a positive electrode sheet and a preparation method therefor, a battery cell, a battery, and an electric device. The polythiophene conductive polymer comprises a first structural unit shown in formula (1) and at least one of a second structural unit shown in formula (2), a third structural unit shown in formula (3) and a fourth structural unit shown in formula (4).

To solve a problem of a conventional conductive polymer composition that its use is limited due to its high surface resistance and to provide a conductive polymer composition that has lower surface resistance than the heretofore known composition and has excellent stability.SOLUTION: Used is a conductive polymer composition comprising: 0.01-10 mass% of, for example, polythiophene (A) comprising, as a structural unit, 6-(2,3-dihydro-thieno[3,4-b][1,4]dioxin-2-yl)hexane-1-sulfonic acid as a polythiophene; 0.01-1.0 mass% of a dispersible metal (B); and, further, polyvinyl alcohol (C).SELECTED DRAWING: None

The invention belongs to the technical field of sodium ion batteries, and relates to a preparation method of modified asphalt-based hard carbon microspheres for a negative electrode of a sodium ion battery. The preparation method comprises the following steps: (S1) oxidizing asphalt powder to obtain oxidized asphalt; (S2) modifying the oxidized asphalt by thienyl silane to obtain thienyl silane modified asphalt; (S3) adding the thienyl silane modified asphalt, thiophene aldehyde, an oxidant and a surfactant into water, and reacting at 40-65 DEG C for 5-8 hours; adding an acidic catalyst, and reacting at 80-95 DEG C for 3-6 hours to obtain modified asphalt microspheres; and (S4) sequentially carrying out low-temperature pre-carbonization and high-temperature carbonization on the modified asphalt microspheres to obtain the modified asphalt-based hard carbon microspheres for the negative electrode of the sodium-ion battery. According to the invention, asphalt is modified to obtain an asphalt-polythiophene precursor with a compact network structure, namely the modified asphalt microspheres, and the hard carbon microspheres formed by segmented carbonization have excellent electrochemical performance when being used as the negative electrode of the sodium-ion battery.

The invention discloses an antistatic and antibacterial mixed fiber and a preparation method thereof, and belongs to the technical field of textile fabrics. The preparation method comprises the steps of fiber pretreatment, polycaprolactam graft modification, polyethylene glycol terephthalate graft modification, blending treatment and after-treatment. According to the invention, the PA6 (polycaprolactam) fiber is grafted and modified step by step to load quaternary ammonium salt, so that the long-acting antibacterial effect is realized; pET (polyethylene glycol terephthalate) fiber is grafted with a cationic monomer to construct an antistatic path, and the PET fiber and the cationic monomer are blended in a ratio of (6-7): (3-4), so that the performance and the mechanical strength are considered; a polythiophene conducting layer and silver-doped nano titanium sol are adopted in after-treatment, so that the surface is endowed with double antibacterial and efficient antistatic functions. According to the process, the environmental protection property and the production efficiency are remarkably improved through a water-phase reaction system and a padding-baking method, and the function retention rate is larger than or equal to 90% after 50 times of washing.

The present invention relates to a monomer composition comprising at least one functionalized thiophene monomer having the structure (I) wherein X1 and X2, independently of each other, represent O or S; x3 represents-CH2-O-in which a carbon atom is bonded to R1, or represents-O-; r1 represents a trivalent organic group; r2 represents a divalent organic group; m1 represents a monovalent cation; wherein the monomer composition is substantially free of an unsaturated organic sulfonic acid having the structure (II) wherein R3 represents a divalent organic group; m2 represents a monovalent cation; or wherein the monomer composition comprises an unsaturated organic sulfonic acid having the structure (II) in a maximum amount such that the molar ratio of the total amount of unsaturated organic sulfonic acid having the structure (II) to the total amount of functionalized thiophene monomer having the structure (I) is 1: 32 or less. The invention also relates to a process for the preparation of functionalized pi-conjugated polythiophenes, the functionalized pi-conjugated polythiophenes obtainable by this process, polymer compositions comprising functionalized pi-conjugated polythiophenes, a process for the preparation of lamellar bodies, lamellar bodies obtainable by this process, and methods for the preparation of functionalized pi-conjugated polythiophenes. And the use of the monomer composition or the polymer composition according to the invention for producing an electrically conductive layer in an electronic device. # imgabs0 #

The invention discloses a positive electrode material, a secondary battery and a power utilization device, and belongs to the technical field of batteries, the positive electrode material comprises an inner core and a coating layer arranged on the outer surface of the inner core, the inner core comprises a ternary positive electrode active material, and the coating layer comprises a graft polymer, a dielectric material and a lithium salt; the main chain of the graft polymer comprises a conductive polymer, and the conductive polymer comprises at least one of a styrene-butadiene-styrene block copolymer, nitrile rubber and a styrene-isoprene-styrene copolymer; the side chain of the graft polymer comprises at least one of poly-p-phenylene, polypyrrole, polythiophene, polydiacetylene and polyaniline. The positive electrode material disclosed by the invention can effectively improve the coulombic efficiency and the cycle performance of the secondary battery.

A hydrogel includes a polysaccharide including aldehyde groups and carboxy groups, a functionalized chitosan, and iron (III) ions. The hydrogel further includes particles including a core including a carboxy-functionalized polythiophene and a shell including polydopamine. A wound dressing includes the hydrogel and a base layer selected from the group consisting of a gauze, lint, plaster, bandage and cotton wool. The hydrogel is attached or adhered to the base layer.

The invention provides a bio-based super-soft cool antibacterial knitted fabric and a preparation method thereof. The preparation method comprises the following steps: step 1, blending modified nanometer jade powder and PLA master batch, and carrying out melt spinning through a double-screw extruder to obtain cool fibers; 2, polyamide is mixed with the mango seed kernel extract and the polythiophene nano shell powder, and hollow fibers are obtained through wet spinning; 3, combing and drawing PLA fibers, the hollow fibers and the cool fibers to obtain blended yarns; 4, the PLA fibers and the blended yarn serve as outer layer yarn, the hollow fibers serve as inner layer yarn, a double-face circular weft knitting machine is adopted for knitting, and gray fabric is obtained; and step 5, carrying out low-temperature dyeing and post-treatment on the gray fabric to obtain the bio-based super-soft cool antibacterial knitted fabric. By optimizing the addition amount of the nanometer jade powder, the proportion of a marriage house and a low-temperature post-treatment process, collaborative improvement of cool feeling, antibiosis, breathability and super softness is achieved.

The invention provides a multiband electrochromic polymer, an electrochromic film, an electrochromic device and a preparation method of the multiband electrochromic polymer, and relates to the technical field of electrochromic materials.The preparation method of the electrochromic film comprises the steps that the multiband electrochromic polymer is dispersed in an organic solvent, and an electrochromic medium is obtained; preparing the electrochromic medium into an electrochromic film by adopting a spin coating method or a blade coating method; and the electrochromic film is placed in a dopant solution to be doped. The invention is beneficial to improving the defects of poor solubility and low optical contrast of the current polythiophene-based electrochromic molecule; and rhodamine electrochromic materials are poor in micromolecule film-forming property and easy to diffuse, and optical signal change is only limited to visible light band.

The invention provides a composite binder, and a pole piece and a battery using the same, the composite binder comprises a first binder, the first binder is a block polymer, and the first binder is prepared through a block reaction of polyvinylidene fluoride and a conjugated polymer; the conjugated polymer comprises at least one of polyacetylene and polythiophene; wherein the mass content of polyvinylidene fluoride used for preparing the first binder is 50-90%. The conjugated polymer and PVDF are subjected to a block reaction to obtain the first binder, and the first binder has good binding performance, ionic conductivity and electronic conductivity.

The invention provides a conductive backboard, a preparation method thereof and a photovoltaic module. The conductive backboard comprises a supporting layer, a conductive layer and an insulating layer which are stacked in sequence, the conductive layer comprises a conductive circuit area, the conductive circuit area comprises a conductive material, and the conductive material is a conductive adhesive and / or a conductive coating; the conductive material comprises the following components in parts by weight: 20-40 parts of matrix resin, 50-80 parts of conductive filler and 5-10 parts of a curing agent, wherein the conductive filler is selected from any one or more of metal particles, metal oxide, a fiber material, a carbon-based material, a polythiophene polymer and a mica material with a metal layer on the surface. According to the conductive backboard, the composition of the conductive material in the conductive layer is optimized, so that the conductive layer has good ductility, is better matched with the thermal performance of a polymer and is better compounded with the supporting layer, and the conductive performance, the mechanical strength and the weather resistance of the conductive backboard are improved, so that the photoelectric conversion efficiency of a photovoltaic module is improved.

The invention relates to a permanent antistatic PA composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The permanent antistatic PA composite material comprises the following components in parts by weight: 70-90 parts of PA resin, 30-60 parts of polyethylene, 5-15 parts of polythiophene, 1-5 parts of a modified antistatic agent, 1-5 parts of a modified flame retardant, 1-3 parts of a flexibilizer, 1-3 parts of a dispersant and 1-3 parts of a lubricant, a compound containing an alkanolamide bond in the modified antistatic agent forms a conductive layer on the surface of the material, the resistivity is reduced, and the pre-product enhances the hydrophilicity of the material and accelerates the transfer and dissipation of charges; diphenyl chlorophosphate in the modified flame retardant forms an expanded carbon layer in the combustion process, absorbs heat, dilutes combustible gas and isolates flames, and cooperates with the phosphorus-nitrogen flame retardant to reinforce the carbon layer, so that the flame retardant property of the material is remarkably improved; the permanent antistatic PA composite material prepared by the invention not only has a good antistatic effect, but also has an excellent flame retardant effect.

The application belongs to the technical field of self-repairing materials, and particularly relates to a kind of double-microcapsule self-repairing water-based polyurethane material and its preparation method. It comprises: ultrasonic dispersion of cellulose nanocrystals in deionized water to form an aqueous phase, adding dry oil and sodium dodecyl sulfate, and stirring to obtain a dry oil microcapsule with a Pickering emulsion as a template. Then, polyvinylpyrrolidone aqueous solution, non-polar solvent solution of thiophene monomer and ammonium persulfate aqueous solution are prepared. The first two are mixed and ultrasonically dispersed, then mixed with the ammonium persulfate aqueous solution and stirred to polymerize. After the reaction is completed, polythiophene microcapsule suspension is obtained. After centrifugation, the supernatant is colorless. The solid is washed and dried to obtain polythiophene microcapsules. Finally, the two kinds of microcapsules are added to the water-based polyurethane, mixed uniformly, dried at room temperature to form a double-microcapsule self-repairing water-based polyurethane material. The application realizes the self-repairing and mechanical property improvement of the double-microcapsule self-repairing water-based polyurethane material under room temperature natural light.

To provide a conductive polymer film remarkably excellent in electrical conductivity and a conductive polymer composition for providing the conductive polymer film.SOLUTION: The conductive polymer composition is used which contains 0.01-5 mass% of a specific polythiophene (A) and 0.016-0.5 mass% of carbon nanotubes (B). The polythiophene (A) can be produced by polymerizing a thiophene monomer represented by the following general formula (3) in water or an alcohol solvent in the presence of an oxidizing agent, and subsequently performing acid treatment if necessary.SELECTED DRAWING: None

The invention discloses twelve-hole polyester staple fiber and a preparation method thereof, and relates to the technical field of polyester. The preparation method comprises the following steps: reacting 3-thiophene isocyanate with phenol to prepare thienyl blocked isocyanate; carbon nanotubes are carboxylated by sulfuric acid and nitric acid and then react with 3-aminothiophene to prepare thienyl carbon nanotubes, and thiophene and thienyl blocked isocyanate are subjected to oxidative polymerization reaction on the surfaces of the thienyl carbon nanotubes to prepare polythiophene carbon nanotubes; the preparation method comprises the following steps: reacting N, N-dimethyl-n-octylamine with epoxy chloropropane to prepare functional diol; the preparation method comprises the following steps: carrying out polycondensation on ethylene glycol, terephthalic acid, 2-vinyl terephthalic acid and functionalized diol to prepare pre-modified polyester; carrying out a reaction on the pre-modified polyester and methoxyl polyethylene glycol sulfydryl to prepare modified polyester; and carrying out melt spinning on the modified polyester and the polythiophene carbon nanotubes to obtain the finished product fiber. The twelve-hole polyester staple fiber prepared by the method has the effects of resisting bacteria, absorbing moisture, resisting static electricity and being good in mechanical property.

A photoresist composition includes a conjugated resist additive, a photoactive compound, and a polymer resin. The conjugated resist additive is one or more selected from the group consisting of a polyacetylene, a polythiophene, a polyphenylenevinylene, a polyfluorene, a polypryrrole, a polyphenylene, and a polyaniline. The polyacetylene, polythiophene, polyphenylenevinylene, polyfluorene, polypryrrole, the polyphenylene, and polyaniline includes a substituent selected from the group consisting of an alkyl group, an ether group, an ester group, an alkene group, an aromatic group, an anthracene group, an alcohol group, an amine group, a carboxylic acid group, and an amide group. Another photoresist composition includes a polymer resin having a conjugated moiety and a photoactive compound. The conjugated moiety is one or more selected from the group consisting of a polyacetylene, a polythiophene, a polyphenylenevinylene, a polyfluorene, a polypryrrole, a polyphenylene, and a polyaniline.

The application belongs to the technical field of chemical separation materials, and relates to a preparation method of a sulfonated polythiophene modified nitrogen-doped honeycomb carbon and Co9S8 composite microsphere integrated flow electrode, which comprises the following steps: taking chitosan as a carbon source and a nitrogen source, adding a cobalt source and a sulfur source, performing cross-linking aging, forming and curing, performing freeze drying and high-temperature carbonization, and obtaining chitosan derived nitrogen-doped honeycomb carbon and Co9S8 composite microspheres; taking thiophene and 3-sulfonic acid thiophene as monomers, coating a sulfonated polythiophene film on the surface of the composite microspheres through chemical polymerization, and obtaining the integrated flow electrode. The high specific capacitance electrode material and the conductive ion exchange membrane function are combined into one, the specific capacitance, the hydrophilicity and the ion selective permeability are significantly improved, the integrated flow electrode is used for deionization technology treatment of uranium-containing wastewater, the uranium removal rate is high, the electric adsorption capacity is large, the balance time is short, the device is simplified, and the application prospect is wide.

The present invention discloses a polythiophene-based photothermal fabric based on dextran sulfate as a template and a preparation method and application thereof, belonging to the technical field of functional textile processing. The preparation method of the present invention specifically comprises the following steps: (1) grafting dextran sulfate onto the fiber surface; (2) in-situ polymerization of polythiophene onto the fiber surface; (3) fabric washing and drying post-treatment; the present invention aims to form a template for inducing polymerization of thiophene monomers by grafting dextran sulfate onto the fiber surface; and then using an initiator to catalyze in-situ polymerization of 3,4-ethylenedioxythiophene monomers on the fiber surface to prepare polythiophene-based photothermal fabrics; after washing and drying, a fabric with a durable and stable photothermal effect is obtained. Compared with the traditional method of applying PEDOT:PSS to the fabric surface by an impregnation method or a coating method for preparing a photothermal fabric, the method of the present invention has the advantages of good photothermal uniformity, high efficiency, durable photothermal effect and strong photothermal bactericidal property.

This invention relates to the field of lithium-ion battery technology, specifically to a silicon-carbon material, its preparation method, and its application. The silicon-carbon material includes a core and a coating layer covering at least a portion of the surface of the core. The core includes nano-silicon material. The coating layer includes a flexible conductive polymer layer and a carbon layer existing between the core and the flexible conductive polymer layer. The flexible conductive polymer layer includes a conductive polymer having a conjugated structure. The conductive polymer includes at least one of polyaniline, polypyrrole, polyacetylene, polythiophene, polyquinoline, polyfluorene, polybenzothiadiazole, and poly(p-phenylenevinylene). The mass ratio of the conductive polymer to the total mass of the carbon layer and the core is (0.05-0.2):1. This invention, by constructing a shell structure with a "carbon layer-flexible coating layer" on the core, enables the silicon-carbon material with this core-shell structure to solve the problems of volume expansion, poor conductivity, and SEI layer instability of silicon materials in lithium-ion batteries.

The invention discloses a modified spherical graphite negative electrode material and a preparation method and application thereof.The modified spherical graphite negative electrode material comprises a graphite core, an embedded structure and a coating layer, the graphite core is spherical or spheroidic graphite, the embedded structure is achieved by embedding boron nitride nanosheets into the surface of the graphite core, and the coating layer is coated with the boron nitride nanosheets. The number of layers of the boron nitride nanosheets is 1-5, the proportion of the embedded structure is 5-15 wt%, the coating layer is one of sulfonated polypyrrole, sulfonated polyaniline or sulfonated polythiophene, the thickness of the coating layer is 5-50 nm, the surface sulfonic acid group content of the coating layer is 5-10 wt%, and the coating layer coats the embedded structure and the graphite core. The graphite negative electrode material is subjected to BNNS embedding through high-pressure homogenization, and then is coated by a sulfonated polymer surface in-situ polymerization process, so that the material is endowed with high tap density, high thermal conductivity and excellent ion transmission capability, and the graphite negative electrode material is suitable for high-energy-density power batteries and fast charging scenes.

The application belongs to the technical field of catalyst preparation, and particularly discloses a Cu 2‑x The application discloses a preparation method and application of an S / carbon / MnO2 / attapulgite composite catalyst. Attapulgite is used as a carrier, and is reacted with thiophene and potassium permanganate to uniformly load flaky manganese dioxide on the attapulgite carrier, and simultaneously, the thiophene is oxidized into a polymer to prepare polythiophene / MnO2 / attapulgite. A copper source is added, and complexation and coordination occur between sulfur atoms (S) in the thiophene and copper ions (Cu 2+ ), so that the copper ions are adsorbed in situ to the surface of the polythiophene / MnO2 / attapulgite composite, and Cu 2‑x S / carbon / MnO2 / attapulgite is prepared by pyrolysis. The prepared catalyst has both thermal catalysis function and plasmonic photothermal effect, greatly reduces the reaction temperature when the catalyst catalyzes and oxidizes VOCs, and realizes the purpose of coupling and catalyzing and oxidizing VOCs under low-temperature conditions.