34 results about "Mixed valent" patented technology

Techniques disclosed herein relate to sol-gel materials that include at least one metal halide precursor and at least one alcohol. After being annealed, the metal in the metal halide is in at least two different oxidation states, both of which are stable and transparent to visible light. By producing a mixture of the same metal in multiple oxidation states that are all transparent to visible light, an amorphous state of the sol-gel material without any noticeable domain formation that would otherwise distribute stress locally and lead to voiding inside nano-gratings to be overcoated is obtained. Highly condensed states of the sol-gel have refractive index values in the 1.7-2.2 range, without sacrificing recessed-feature fill.

The invention relates to the technical field of composite fibers, in particular to a light-absorbing and heat-generating composite fiber and a preparation method thereof.The preparation process comprises the following steps that 1, core-shell structure light-absorbing and heat-generating particles are prepared; (2) carrying out surface modification on ferroferric oxide coated silicon dioxide particles; (3) in-situ polymerization; and (4) melt spinning. According to the scheme, nano ferroferric oxide is selected as a core light absorption material, and due to a unique Fe < 2 + > / Fe < 3 + > mixed valence electronic structure, while wide-spectrum light absorption is realized, oxidative photo-generated holes are hardly generated, so that the photocatalytic degradation risk similar to titanium dioxide is avoided from the source, and the long-term stability of a polymer matrix is guaranteed; in combination with in-situ polymerization, axial gradient magnetic field spinning processes and the like, the washing resistance, aging resistance and strength of the light-absorbing and heating composite fiber are synchronously improved.

The invention discloses a mixed valence copper doped bismuth vanadate nanodisk photocatalyst and a preparation method and application thereof, a main body of the catalyst is a bismuth vanadate nanodisk, copper is doped in the bismuth vanadate nanodisk, and the copper is composed of Cu < + > and Cu < 2 + >; the catalyst has the characteristics of high stability, simplicity in implementation, high universality and the like. The doped copper ions not only can improve the light absorption capacity of the bismuth vanadate material, but also can promote the rapid separation of photo-induced electrons and holes of the bismuth vanadate material by virtue of the mixed valence state of the copper ions, and improve the carrier dynamics on the material, so that the photocatalytic efficiency of the bismuth vanadate material is improved. The bismuth vanadate photocatalyst doped with the copper ions in the mixed valence state has an efficient photocatalytic degradation effect on pollutants such as rhodamine B and the like, and has a wide application prospect in the technical aspects of environmental pollutant degradation and green advanced oxidation.

The invention belongs to the technical field of carbon monoxide catalysts prepared through CO2 thermocatalytic hydrogenation, and provides a high-entropy oxide catalyst based on precursor valence engineering and a preparation method and application thereof. The catalyst is a CuZnMgNiCo-O high-entropy oxide with a rock salt crystal structure, Co exists in a Co < 3 + > / Co < 2 + > mixed valence state form, and the catalyst is prepared from Co2O3 through mechanical ball milling and a high-temperature solid phase method. According to the method, high-concentration oxygen vacancies are successfully constructed in situ in the catalyst, the ratio of Co < 3 + > to Co < 2 + > is optimized, and a rich HEO / Co3O4 phase interface is formed. The prepared catalyst shows excellent performance far superior to that of a CoO derivative catalyst in a reverse water gas shift reaction, has high CO2 conversion rate, CO selectivity close to 99%, apparent activation energy as low as 43 kJ / mol and excellent thermal stability, and provides a high-performance and easily-prepared catalytic material for efficient resource utilization of CO2.

Techniques disclosed herein relate to sol-gel materials that include at least one metal halide precursor and at least one alcohol. After being annealed, the metal in the metal halide is in at least two different oxidation states, both of which are stable and transparent to visible light. By producing a mixture of the same metal in multiple oxidation states that are all transparent to visible light, an amorphous state of the sol-gel material without any noticeable domain formation that would otherwise distribute stress locally and lead to voiding inside nano-gratings to be overcoated is obtained. Highly condensed states of the sol-gel have refractive index values in the 1.7-2.2 range, without sacrificing recessed-feature fill.

The invention belongs to the technical field of water electrolysis hydrogen production energy conversion, and particularly relates to a molybdenum oxide-nickel molybdenum based compound water electrolysis hydrogen production catalyst material and a preparation method thereof. The method comprises the following steps: preparing a molybdenum oxide nanofiber substrate by adopting an electrostatic spinning technology in combination with pre-oxidation treatment; introducing a mixed valence state and oxygen vacancy defect into the substrate through a double-temperature-zone molybdenum vapor doping technology; performing bombardment treatment on the doped substrate by using argon-hydrogen low-temperature plasma to activate the surface; a nickel-molybdenum-based compound grows in situ on an activated substrate through a soaking crystallization method, and a final catalyst material is obtained through reductive heat treatment. The material has a unique three-dimensional hierarchical structure, a large specific surface area and abundant active sites. When being applied to a water electrolysis hydrogen evolution reaction, the catalyst shows excellent catalytic activity and stability under an alkaline condition, hydrogen evolution overpotential and electrolysis energy consumption can be remarkably reduced, the preparation process is controllable, the raw material cost is low, and the catalyst has a good application prospect.

The invention discloses a cobalt-doped ruthenium dioxide nanoparticle material as well as a preparation method and application thereof, and relates to a ruthenium dioxide nanoparticle material as well as a preparation method and application thereof. The nano-particle cluster is formed by irregularly distributing nano-particles; the nanoparticles have a single-phase crystal structure, and the spacing distribution of {110} crystal faces is 0.315 nm; the material is composed of three elements of Co, Ru and O, wherein Co is doped into RuO2 to form Co < 0.3 > Ru0. 7O2 nanoparticles; the material is of an octahedral structure, and Ru sites are replaced by Co doping; the chemical valence state of Ru on the surface of the material is a mixed valence state of + 3 and + 4; charge transfer occurs among three ions of Co, Ru and O, so that Ru is in a lower oxidation state. The cobalt-doped ruthenium dioxide nanoparticle material is used for electrolyzing water to produce hydrogen, and shows 2500-hour long-term stability under the current density of 10 mAcm <-2 >.

Techniques disclosed herein relate to sol-gel materials that include at least one metal halide precursor and at least one alcohol. After being annealed, the metal in the metal halide is in at least two different oxidation states, both of which are stable and transparent to visible light.

Operational characteristics of an extremely low resistance (“ELR”) film comprised of an ELR material may be improved by depositing a modifying material onto appropriate surfaces of the ELR film to create a modified ELR film. In some implementations of the invention, the ELR film may be in the form of a “c-film.” In some implementations of the invention, the ELR film may be in the form of an “a-b film,” an “a-film” or a “b-film.” The modified ELR film has improved operational characteristics over the ELR film alone or without the modifying material. Such operational characteristics may include operating in an ELR state at increased temperatures, carrying additional electrical charge, operating with improved magnetic properties, operating with improved mechanic properties or other improved operational characteristics. In some implementations of the invention, the ELR material is a mixed-valence copper-oxide perovskite, such as, but not limited to YBCO. In some implementations of the invention, the modifying material is a conductive material that bonds easily to oxygen, such as, but not limited to, chromium.

The techniques disclosed herein relate to sol-gel materials that include at least one metal halide precursor and at least one alcohol. After annealing, the metal in the metal halide is in at least two different oxidation states, both of which are stable and transparent to visible light. By creating a mixture of the same metal in multiple oxidation states, all of which are transparent to visible light, it is possible to obtain an amorphous sol-gel material for overcoating without forming any significant domains that, if formed, would locally distribute stress and create voids in the nanolattice. The highly condensed sol-gel has a refractive index value in the range of 1.7 to 2.2 without sacrificing the filling of recessed features.

The invention discloses an inorganic halide perovskite material with low thermal conductivity and a preparation method and application thereof. The molecular formula of the inorganic halide perovskite material with low thermal conductivity is Rb4Sb2Br12; the inorganic halide perovskite material with low thermal conductivity is a quadruple perovskite material and belongs to an I41 / a space group of a tetragonal system; the inorganic halide perovskite material with low thermal conductivity is composed of a SbBr6 < 3-> octahedral framework, Rb atoms occupy cavities among octahedrons, and Sb is in a mixed valence state of + 3 and + 5; the Rb4Sb2Br12 perovskite single crystal prepared by the method is complex in structure, pollution-free, low in price and simple to prepare, has intrinsic low thermal conductivity, and can grow into large blocks; the intrinsic thermal conductivity of the Rb4Sb2Br12 single crystal at normal temperature can reach 0.24 Wm <-1 > K <-1 >, and the intrinsic thermal conductivity of the Rb4Sb2Br12 single crystal at 150 DEG C can reach 0.21 Wm <-1 > K <-1 >, so that the Rb4Sb2Br12 single crystal is a very promising low-thermal-conductivity material.

The invention belongs to the field of crystalline materials, and relates to a CuI / CuII mixed valence bimetallic Cu / Eu-MOF catalyst, a preparation method and catalytic application. The catalyst is a metal-organic framework catalyst constructed based on pyridine carboxylic acid ligands and copper / europium bimetal ions, the chemical formula is {[(CuI3I2) 4 (CuII2EuIII) 3L24 (H2O) 6] (NO3)} n, L is an organic ligand 5-chloronicotinic acid, and the catalyst is specifically formed by further connecting nanocages assembled by two different cluster base nodes of [Cu3I2] and [Cu2Eu (COO) 8] through organic ligands, the catalyst has complex mixed valence and Cu / Eu bimetallic synergistic catalytic sites, is high in porosity and large in specific surface area, is high in conversion yield of catalyzing reaction of CO2 and terminal alkynol compounds under mild conditions, and can be recycled for multiple times.

The present invention discloses a method for preparing a mixed-valence copper ion antibacterial masterbatch, and the specific steps of the method are as follows: 1) Preparation of Cu@CuO: stirring an emulsion containing ethanol, deionized water, glycerol and a soluble copper salt until uniform, transferring it to a high-pressure reactor for reaction, cooling, washing and drying to obtain Cu@CuO. 2) Preparation of a three-dimensional aerogel network Cu@Cu 2 Preparation of Cu@CuO: Soluble copper salt and strong base were added to deionized water and stirred until uniform, then transferred to a three-necked flask and continued to stir while passing inert gas; ethanol was added to the mixture, and the reducing agent solution was quickly added to the solution during stirring. After 15-20 min, the mixture was centrifuged and washed to obtain a three-dimensional aerogel network Cu@Cu 2 O. 3) Cu@CuO and three-dimensional aerogel network Cu@Cu prepared in step 1) and step 2) are 2 O is mixed with polyethylene powder to obtain a mixed powder, and then the mixed powder is heated to 130-210° C. by a twin-screw extruder granulator to melt and extrude, and then air-cooled and pelletized to obtain a mixed-valence copper ion antibacterial masterbatch.

The invention discloses a preparation method of an element mixed valence state doped lithium-rich manganese-based positive electrode material, and belongs to the technical field of lithium ion batteries. The method comprises the following steps: synthesizing a sodium-based precursor with a layered structure in advance, jointly mixing the precursor with a lithium salt and a target dopant salt through an ion exchange step, and synchronously driving sodium-lithium ion exchange and partial oxidation of low-valence ions by virtue of a co-molten salt reaction system, so as to obtain the lithium ion battery. And finally, a stable valence state complementary doping structure is constructed at the atomic scale. According to the design, different valence states of the same doping element play a synergistic role in crystal lattices, high-valence-state ions can stabilize a crystal frame, and low-valence-state ions can adjust a local electronic structure and a coordination environment. According to the invention, lithiation, doping and valence regulation are realized in one step, and the prepared lithium-rich manganese-based positive electrode material has significantly improved coulombic efficiency, capacity retention rate and rate capability.

The invention belongs to the technical field of crystal catalytic material preparation and pollutant degradation, and relates to a CoSe nanocrystalline catalytic material as well as a preparation method and application thereof. The chemical formula of the CoSe nanocrystal is CoSe, the CoSe nanocrystal is formed by assembling Co atoms and Se atoms through covalent bonds, the crystal size is concentrated at 5-20 nm, and Co exists in a mixed valence of + 2 / + 3. The nanocrystal is synthesized in situ through controllable pyrolysis and gas-phase selenylation by combining coordination self-assembly with in-situ phase engineering. The CoSe nanocrystalline material is used as a peroxymonosulfate (PMS) activation catalyst for oxidative degradation of tetracycline.

This invention discloses a metallically modulated Mn-doped spinel-type ZnCo₂O₄ anode material and its preparation method, belonging to the field of lithium-ion battery electrode materials. The material maintains a pure-phase spinel crystal structure, exhibiting uniform and regular 2–5 μm polyhedral micron-sized particles with layered wrinkles and stepped porous structures on the surface. Mn and Co exist in mixed valence states of Mn²⁺ / Mn³⁺ and Co²⁺ / Co³⁺. First-principles DFT calculations confirm that Mn doping transforms the material from a semiconductor to a metallic conductor, eliminating the band gap, significantly increasing the Fermi level electronic state density, and reducing the lithium-ion diffusion barrier from 1.05 eV to 0.75 eV. Its preparation employs a hydrothermal method combined with a calcination process. This material exhibits high reversible specific capacity at a current density of 0.1 A·g⁻¹, excellent capacity retention after 200 cycles, outstanding rate performance in the range of 0.1~1.0 A·g⁻¹, significantly reduced charge transfer resistance, and overall electrochemical performance far superior to pure-phase ZnCo₂O₄. It can be directly used as a negative electrode for lithium-ion batteries and has good application prospects in the field of lithium-ion batteries.

The present application relates to the technical field of probabilistic bit device, and especially relates to a probabilistic bit device based on bias control and a preparation method thereof. The probabilistic bit device comprises an electrode pair and a probabilistic bit molecule, and the probabilistic bit molecule is connected between the electrode pair. The skeleton core is a symmetric or near-symmetric biferrocene group, and the two ferrocene units are equivalent redox active centers, and the redox potential is similar, which lays a foundation for state reversible switching and uniform charge delocalization. The ferrocene unit has excellent chemical stability and no thermal degradation problem; the intermediate bridging group can control the electronic coupling strength, which ensures the charge migration across the sites and avoids the coupling of the strong state merging. The results show that in the bias range of 260 mV-400 mV, the probabilistic bit molecule can be switched between the reduced state and the mixed valence state, and then the high and low state ratio of the device is changed, and finally a stable and controllable bias control type probabilistic bit device is constructed.

The invention belongs to the technical field of tetracycline degradation under visible light catalysis, and particularly relates to a transition metal doped bismuth tungstate photocatalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: adding a bismuth source, a tungsten source and an iron source into ethylene glycol, dispersing to obtain a first mixed solution, adding 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid and citric acid to adjust the mixed solution to be weakly acidic to obtain a precursor dispersion liquid, performing solvothermal reaction at 120-180 DEG C for 8-15 hours, washing, and drying to obtain the catalyst. The catalyst is bismuth tungstate nano-particles doped with an iron element and modified by the ionic liquid and has a hollow microsphere structure, the iron element exists in a mixed valence state of Fe < 2 + > and Fe < 3 + >, and the molar ratio of Fe to (Fe + Bi) is (0.25-0.75): 1. The catalyst disclosed by the invention is high in tetracycline antibiotic wastewater degradation efficiency under visible light, good in mineralization degree, strong in process adaptability and excellent in stability.

The present invention discloses a catalyst for in-situ catalytic preparation of methanol from methane, its preparation method and application, including the steps: Step 1, mixing a metal precursor solution with a carbon source or a nitrogen source, and carrying out a sealed hydrothermal synthesis reaction to obtain a MOF containing at least two valence state metals; Step 2, adding a reducing agent solution to a noble metal precursor solution, and carrying out a reduction reaction to obtain a noble metal nanoparticle solution; Step 3, dispersing the MOF obtained in Step 1 in the noble metal nanoparticle solution, and drying to remove the solvent to obtain the catalyst. In the present invention, noble metals are dispersed and loaded onto a metal-organic framework by a hydrothermal synthesis-liquid phase reduction deposition method, realizing the coupling process of in-situ synthesis, efficient decomposition of an oxidant and methane oxidation. A MOF material is formed by bridging carbon, nitrogen or oxygen with a transition metal in a mixed valence state. Applying it to the preparation of methanol from methane can not only reduce the reaction cost, but also obtain high methane catalytic activity and methanol selectivity.

The application belongs to the technical field of nanomedicine, and particularly relates to a kind of nanometer material for inducing tumor cell ferroptosis and its preparation method and application.The nanometer material is GZHMU-1 and GZHMU-1@Mo, contains mixed valence copper ions, contains monovalent copper and divalent copper, has a similar Fenton effect, is more sensitive to GSH, the effect is more obvious under the condition of containing hydrogen peroxide, and the latter also contains guest molecule MoO4 2‑ , increases the effect of generating hydroxyl radicals, and if hydrogen peroxide exists, the effect of generating ROS is more obvious, and triaminoguanidine hydrochloride is used as a frame connector, which has good biological safety;The nanometer material of the application can be oxidized and reduced in response to high concentration of GSH and hydrogen peroxide in tumor microenvironment to induce tumor cell ferroptosis.

The application discloses a preparation method of cerium-doped goethite adsorption material and application thereof. The cerium-doped goethite adsorption material Ce-FeOOH is composed of metal cerium Ce doped goethite FeOOH; the Ce doping amount is 1.5-10.9 wt%, Ce is loaded on the surface of FeOOH in the form of mixed valence of Ce(III) and Ce(IV), and the proportion of Ce(III) is 17.8-30.0%. The Ce-FeOOH adsorption material maintains excellent adsorption stability in extracellular antibiotic resistance gene eARGs contaminated water bodies in a wide pH range and high ionic strength. The controllable doping method solves the problems of limited adsorption capacity and pH sensitivity of traditional materials, has high efficiency and economy in the treatment of eARGs pollution in a complex salinity water environment, and provides an innovative solution for water eARGs pollution control.

The invention relates to the technical field of Raman spectroscopy and nano materials, and discloses a preparation method and application of a surface-enhanced Raman scattering substrate, and the preparation method comprises the following steps: step 1, preparing a polydopamine modified nano tungsten bronze (MxWO) composite material: dispersing nano MxWO powder in a Tris buffer solution with the pH value of 7-9 to prepare a suspension with the mass concentration of 0.05-10wt%, and preparing a nano tungsten bronze (MxWO) composite material; performing ultrasonic treatment for 30-120 minutes in an ice-water bath at the power of 50-300 W, adding 0.1-1 g of dopamine hydrochloride, continuously performing ultrasonic treatment for 5-60 minutes, then performing magnetic stirring reaction for 4-12 hours at room temperature, and collecting precipitates; by virtue of a unique one-dimensional tunnel structure of nano tungsten bronze and a mixed valence state of tungsten, and in cooperation with a composite system constructed by polydopamine modification and metal nanoparticle introduction, efficient integration of an electromagnetic enhancement mechanism and a chemical enhancement mechanism is realized. The technical problems that a traditional precious metal substrate is high in cost and insufficient in stability and an oxide semiconductor substrate is limited in enhancement effect are solved.

The invention belongs to the technical field of sewage treatment, and relates to a core-shell structure C-coated Co / NF electrode material, a preparation method and application thereof, and an EC-coated Co / NF-PMS system.The electrode material takes foamed nickel as a three-dimensional conductive substrate, the core-shell structure of carbon-embedded cobalt elementary substance uniformly and compactly grows on the surface of the foamed nickel in situ, and four elements of C, O, Ni and Co are uniformly distributed in the C-coated Co / NF electrode material; wherein the atomic percentage content of carbon is the highest and exceeds 50%, the Co element is mainly Co0, two mixed valence states of Co < 3 + > and Co < 2 + > are introduced, the Ni element is mainly Ni < 2 + >, and meanwhile, the metallic nickel Ni0 of the substrate is reserved. The electrode material has high conductivity, high catalytic activity (excellent degradation capability), strong stability, good economical efficiency and environmental friendliness, and can be used for efficiently electrically activating PMS and deeply degrading organic pollutants such as SMX in water.

The application belongs to the field of catalytic chemistry, and particularly relates to a Cu-Cu x O / C catalyst and a preparation method thereof, the catalyst is composed of a carrier carbon and an active component of copper and copper oxide with mixed valence, KBr is added as an inducer during Cu-MOF nucleation and growth, and the obtained sample is pyrolyzed at low temperature in a nitrogen atmosphere to obtain Cu-Cu x O / C. The prepared Cu-MOF derived mixed valence Cu-Cu x O / C catalyst can efficiently catalyze the electro-reduction of nitrate to ammonia.

This invention discloses a QCM gas-sensitive element based on electrospun Ce-MOF nanofibers and its preparation method, belonging to the field of gas sensing materials technology. The gas-sensitive element includes a quartz crystal microbalance substrate and a sensitive coating disposed thereon, wherein the sensitive coating is Ce-UiO-66 nanofibers; the Ce-UiO-66 nanofibers are prepared by electrospinning, with a diameter of 300-500 nm, and the cerium element is represented by Ce. 3+ / Ce 4+ It exists in a mixed valence state. This invention combines the high specific surface area adsorption characteristics of MOF with the rapid mass transfer advantages of porous fibers. The QCM gas-sensitive element has high sensitivity and rapid response characteristics to borneol volatile gases. Moreover, the QCM gas-sensitive element provided by this invention has a simple preparation process, low cost, and can operate at room temperature.

The present application relates to the technical field of composite fibers, in particular to a light-absorbing and heat-generating composite fiber and a preparation method thereof, and the preparation process comprises the following steps: (1) preparing core-shell structure light-absorbing and heat-generating particles; (2) modifying the surface of ferroferric oxide@silicon dioxide particles; (3) in-situ polymerization; and (4) melt spinning. In the present application, nano-ferroferric oxide is selected as a core light-absorbing material, and its unique Fe2+ / Fe3+ mixed valence electron structure can realize wide-spectrum light absorption while hardly generating oxidative photo-generated holes, thus avoiding the photocatalytic degradation risk similar to titanium dioxide from the source and ensuring the long-term stability of the polymer matrix. In combination with in-situ polymerization, axial gradient magnetic field spinning process and the like, the water washing resistance, aging resistance and strength of the light-absorbing and heat-generating composite fiber are simultaneously improved.

The application provides a noble metal catalyst with mixed valence, which comprises a carrier, noble metal and optional active metal. The content of noble metal in the catalyst is 0.01-20% of the total weight of the carrier, and the valence of the noble metal includes three or more than three of zero valence, one valence, two valence, three valence and four valence in X-ray photoelectron spectroscopy analysis. The application can accurately obtain the valence characteristics and corresponding content proportion of the noble metal on the catalyst surface, and further obtain the influence law of the valence characteristics and corresponding content proportion of the noble metal on the catalyst performance. In addition, the content of the noble metal with different valence on the catalyst surface can be controlled by changing the type, proportion and preparation conditions of the carrier, the additive and the modifier, so that the reaction performance of the catalyst is improved.

The technology disclosed herein relates to a sol-gel material comprising at least one metal halide precursor and at least one alcohol. After annealing, the metal in the metal halide is at least in two different oxidation states, and the two oxidation states are stable and transparent to visible light. By producing a mixture of the same metal in multiple oxidation states, which is transparent to visible light, an amorphous state of the sol-gel material is obtained without any significant domain formation, which would otherwise locally distribute stress and result in voids inside the nanograting to be coated. The highly condensed state of the sol-gel has a refractive index value in the range of 1.7-2.2 without sacrificing the recessed feature fill.

The application belongs to the technical field of sewage treatment, and relates to a core-shell structure C@Co / NF electrode material and a preparation method and application thereof, and an EC-C@Co / NF-PMS system. The electrode material takes foamed nickel as a three-dimensional conductive substrate, and a core-shell structure of carbon-embedded cobalt element is uniformly and densely grown in situ on the surface of the foamed nickel. Four elements of C, O, Ni and Co are uniformly distributed in the C@Co / NF electrode material, wherein the atomic percentage content of carbon is the highest and exceeds 50%, Co element is mainly Co 0 , Co 3+ and Co 2+ two mixed valence states are introduced, Ni element is mainly Ni 2+ , and the metal nickel Ni 0 of the substrate itself is reserved. The electrode material has high conductivity, high catalytic activity (excellent degradation capacity), strong stability, good economy and environmental friendliness, can efficiently electroactivate PMS and deeply degrade organic pollutants such as SMX in water.

The application relates to a preparation method and activity verification method of a mixed valence MOF material with laccase activity. The application belongs to the field of biomimetic catalysis. The application aims to solve the technical problem of low catalytic activity of existing laccase enzyme simulation materials. The application designs a kind of Cu + / Cu 2+ The application has the advantages of simple process, mild conditions, and the obtained Cu + / Cu 2+ The HKUST-1 material has higher laccase activity than the current Cu 2+ The enzyme simulation material has the potential of higher laccase activity, the catalytic activity of 2,3-dichlorophenol is up to 1.4 times that of the equal mass commercial laccase, has the advantages of high efficiency and low cost, and has good industrial application prospect. The application can be widely used for oxidizing phenolic compounds.