78results about How to "Curb churn" patented technology

The invention discloses a water and soil loss telemetry data analysis method and system based on deep learning, and relates to the technical field of data analysis, and the method comprises the steps: extracting soil loss data, surface runoff data and topographic data; fusing the soil loss data, the surface runoff data and the topographic data, and obtaining water and soil loss risk index data and soil erosion rate data through a feature extraction technology; calculating weight values of the water and soil loss risk index data and the soil erosion rate data by using a feature evaluation technology; and based on the water and soil loss risk index data, the soil erosion rate data and the weight value, constructing a water and soil loss prediction model by using a deep learning framework and a space-time analysis algorithm. According to the invention, through telemetry data collection and feature extraction, key water and soil loss information can be rapidly obtained, the data processing flow is simplified, and the accuracy and reliability of data are ensured.

The invention discloses a supported iron-molybdenum catalyst for formaldehyde production and a preparation method and application thereof, and belongs to the field of catalysts.The catalyst comprises a core-shell structure, the core of the catalyst is a carrier, molybdenum trioxide is supported on the carrier, and the shell of the catalyst is iron molybdate. The carrier is selected from at least one of silicon dioxide, aluminum oxide, titanium oxide, magnesium oxide, magnesium silicate, a molecular sieve, white carbon black and hydroxyapatite; the preparation method comprises the following steps: firstly, loading molybdenum trioxide on a carrier, then dispersing the carrier in deionized water, dropwise adding a molybdenum source solution and an iron source solution in a parallel flow manner under stirring to perform deposition loading of iron molybdate, and performing aging, drying, forming and calcining to obtain the catalyst. The catalyst is used for preparing formaldehyde by oxidizing methanol, dimethyl ether and methylal; according to the catalyst disclosed by the invention, the raw material cost and the pollutant treatment capacity are obviously reduced due to the reduction of the dosage of molybdenum and iron components, and the catalyst has relatively good activity and stability.

The invention relates to application of mouse combined lactobacillus. According to the application disclosed by the invention, the lactobacillus murins DSM 28683 can be applied to the preparation of a product for treating type 2 diabetes mellitus or a product for reducing body fat. A T2D mouse is subjected to intragastric administration by using the Ligilbacillus murins DSM 28683, and it is found that the Ligilbacillus murins DSM 28683 can significantly improve metabolism of the T2D mouse, effectively improve insulin sensitivity of the T2D mouse, reduce body weight and improve fatty liver, and has a good application prospect in treatment of type 2 diabetes mellitus.

The invention relates to the technical field of new energy, and discloses a single-crystal positive electrode material which comprises a core layer and a first shell layer, the core layer is a ternary material core layer doped with a metal element A; the first shell layer is a fluoride coating layer; the metal element A is selected from at least one of zirconium, titanium, magnesium, aluminum, niobium and tungsten; the fluoride coating layer is obtained by doping villiaumite containing a metal element A into the core layer, sintering and migrating to the surface of the ternary material core layer; through the design, the cycling stability of the positive electrode material is improved from two aspects of improving the internal structure stability of the positive electrode material and consuming residual lithium on the surface, and meanwhile, due to doping of the metal element A and the villiaumite containing the metal element A, the metal element A is more uniformly distributed in the positive electrode material, so that the stability of the material is further improved; in addition, the invention also discloses a single-crystal positive electrode material.

The invention relates to a fertilizer synergistic composition, a special corn fertilizer and a preparation method thereof, and belongs to the technical field of fertilizers. The fertilizer synergistic composition comprises the following components in percentage by weight: 0.6%-5.0% of polyaspartic acid, 1.2%-4.0% of polyacrylamide, 0.3%-2.0% of a nitrification inhibitor and the balance of zeolite powder. The invention also provides a special corn fertilizer containing the fertilizer synergistic composition. The polyacrylamide in the composition provided by the invention can improve the soil structure, increase the porosity and air permeability of the soil, improve the water retention capacity of the soil and reduce the permeability of the soil, so that the fertility of the soil and the yield of crops are improved. According to the fertilizer synergist, the utilization degree of a fertilizer is increased, the release speed of the fertilizer is controlled, and the fertilizer can act for a long time.

The invention relates to the technical field of catalysts, in particular to a catalyst for hydrodechlorination synthesis of 2, 3-dichloropyridine, a preparation method of the catalyst and a synthesis method of the 2, 3-dichloropyridine. The catalyst comprises a carrier, an active component loaded on the carrier and a coating layer located outside the carrier, the active component is Pd; and the coating layer is made of a nitrogen-doped carbon material. According to the present invention, the nitrogen-doped carbon material (CN) is adopted to coat the Al2O3-loaded Pd catalyst (PdM / Al2O3, and M is adopted as the auxiliary agent), the acid-base property of the catalyst surface is adjusted, and the electronic structure of Pd can be changed through the interaction of CN and Pd so as to improve the catalytic performance of the catalyst; meanwhile, CN can inhibit poisoning, loss and aggregation of the Pd active component, so that the stability and recycling performance of the catalyst are improved. In addition, due to the addition of the auxiliary agent, the dispersity of Pd is improved, and the activity of the catalyst is further improved.

The invention belongs to the technical field of food packaging materials, and particularly discloses a preparation method and fresh-keeping application of a wheat protein cross-linked edible nanocellulose coating film. The multifunctional edible composite coating film with good mechanical strength, water resistance, water binding capacity, self-healing property and transparency is successfully prepared by dissolving four substances of soybean seed coat nanocellulose, sodium alginate, wheat protein and lactone at high temperature to form a composite solution, and is applied to fruit preservation, such as bananas; the preparation method of the edible nanocellulose coating film is simple, and various properties are integrated and excellent.

The invention discloses a high-entropy ferric pyrophosphate sodium ion battery positive electrode material and a preparation method thereof, and belongs to the field of battery positive electrode materials. The chemical formula of the positive electrode material is Na4Fe3-aMa (PO4) 2P2O7 (0.05 < = a < = 0.5), M is a metal element and comprises at least five of cobalt, magnesium, zirconium, zinc, aluminum, molybdenum, copper, manganese, nickel, calcium and chromium, the high-entropy ferric sodium phosphate pyrophosphate battery positive electrode material is spherical, and the surface of the high-entropy ferric sodium phosphate pyrophosphate battery positive electrode material is coated with an amorphous carbon layer. The preparation method adopts a sol-gel method and comprises the following steps: mixing an iron source, a doped metal source, sodium pyrophosphate, ammonium dihydrogen phosphate and citric acid monohydrate according to a stoichiometric ratio, stirring, gelatinizing and drying to obtain xerogel, and calcining through a two-stage hydrogen-argon mixed gas to obtain the iron-doped metal-doped sodium pyrophosphate / citric acid composite material. The crystal structure is optimized by means of the high-entropy synergistic effect, the electron conductivity and the Na < + > diffusion rate are improved, and the industrial adaptability of the spherical morphology and the structural stability of carbon coating are combined.

The invention provides a copper-based electrocatalyst as well as a preparation method and application thereof, and relates to the technical field of electrocatalysis. The copper-based electrocatalyst is composed of a copper carrier and a copper-based micron wire growing on the surface of the copper carrier in situ, the interior of the copper-based micron wire is elemental copper, and the surface of the copper-based micron wire is a copper oxide nanosheet. The copper-based electrocatalyst has the advantages of large electrochemical active area, strong binding force, strong stability, strong conductivity, high energy utilization rate and the like, and solves the problem that the existing method for producing 2, 5-furandimethanol through electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) / 2, 5-furandimethanol (BHMF) is low in cost. The invention solves the problems of low energy utilization rate of nickel-based and cobalt-based catalysts and poor stability of copper-based catalysts in the process of preparing 1, 5-furandicarboxylic acid (FDCA). The preparation method provided by the invention can be carried out at room temperature, and compared with other copper-based electrocatalyst preparation methods needing high temperature and high pressure, an external oxygen source and additional metal elements and additives, the preparation method provided by the invention is more environment-friendly and lower in cost.

The invention provides a fuel cell ORR catalyst and a preparation method and application thereof. The fuel cell ORR catalyst comprises a nitrogen-doped porous carbon core, a nitrogen-doped porous carbon coating layer arranged on the surface of the nitrogen-doped porous carbon core, and doped metal simple substances distributed in pore channels of the nitrogen-doped porous carbon core and the nitrogen-doped porous carbon coating layer, the ratio of micropores in the nitrogen-doped porous carbon core is gt; the total proportion of mesopores and macropores in the nitrogen-doped porous carbon core; the ratio of micropores in the nitrogen-doped porous carbon coating layer is lt; the total ratio of mesopores to macropores in the nitrogen-doped porous carbon coating layer is 1: 1. The nitrogen-doped porous carbon structure monatomic catalyst with multiple micropores inside and multiple mesopores / macropores outside is obtained through gradient pore channel design in space in combination with a CVD coating technology, and dissolution and loss of metal elementary substances are greatly inhibited while the catalytic activity of the catalyst is guaranteed, so that the service life of the catalyst is prolonged.

The application belongs to the technical field of carbonyl sulfur hydrolysis catalysts, and discloses a high-efficiency sulfur-resistant catalyst for carbonyl sulfur hydrolysis, a preparation method and application thereof.The preparation method comprises the following steps: (1) preparing a porous ceramic carrier containing alumina, titanium dioxide and zirconium dioxide; (2) in-situ growing a metal organic framework material containing lanthanum, bismuth and cerium on the surface of the porous ceramic carrier by using a solvothermal method; (3) performing a calcination treatment on the porous ceramic carrier loaded with the metal organic framework material in an oxygen-containing atmosphere to obtain a catalyst precursor; and (4) performing a reducing gas plasma bombardment treatment on the catalyst precursor to obtain the high-efficiency sulfur-resistant catalyst.The high-efficiency sulfur-resistant catalyst has high-efficiency low-temperature activity, excellent sulfur resistance and long service life.

The invention relates to the technical field of surface modification, and discloses a surface modification method based on an ion implantation method, which comprises the following steps: carrying out surface pretreatment on a titanium-based or cobalt-chromium-based implant; forming an interface steady-state layer by adopting low-energy nitrogen ion implantation; low-concentration oxygen ion co-injection is carried out on the steady-state layer to form a discontinuous anti-migration blocking layer; calcium ions, zinc ions and silver ions are injected in sequence, and a depth gradient structure from inside to outside is obtained through biphase modulation bias voltage; then implementing oxygen ion directional injection to form a non-stoichiometric oxide layer; performing alternating electric field aging in a water vapor and phosphate atmosphere to construct an ion trapping layer; and finally, sterilizing and sealing the treated workpiece. By constructing a multi-layer synergistic structure and a dynamic ion regulation and control mechanism, migration and agglomeration of functional ions can be slowed down, and the long-term stability of the surface of the implant is improved.

This invention discloses a low surface energy active-passive synergistic antifouling coating and its preparation method, belonging to the field of marine antifouling materials technology. The preparation method of the antifouling coating includes the following steps: S1, mixing acetone and xylene and stirring under a nitrogen atmosphere to form a mixed solvent; S2, adding vinyl-terminated silicone resin and acrylic resin to the mixed solvent, stirring and heating to obtain a coating base liquid; S3, adding an initiator to the coating base liquid and continuously stirring and heating to react; S4, after the reaction is complete and the coating base liquid cools, adding functional fillers to form a coating liquid; S5, coating the coating liquid and drying to obtain a low surface energy active-passive synergistic antifouling coating. The low surface energy active-passive synergistic antifouling coating prepared by this invention solves the problem in existing marine antifouling technologies where the single antifouling mechanism prevents the simultaneous consideration of environmental friendliness and long-term effectiveness, and has broad application prospects in the field of marine antifouling materials technology.

The invention provides a lithium-rich manganese-based composite positive electrode material and a preparation method and application thereof. The lithium-rich manganese-based composite positive electrode material comprises a lithium-rich manganese-based matrix material core and a high-entropy oxide material coating the surface of the core, metal elements in the high-entropy material comprise Mg, Zn, Cu and Nb. According to the positive electrode material provided by the invention, through synergistic cooperation of Mg, Zn, Cu and Nb in the surface layer high-entropy oxide material, migration of transition metal in the positive electrode material is inhibited, loss of oxygen is inhibited, and the electron conductivity is also improved, so that the cycle performance and the rate capability of the lithium-rich manganese-based composite positive electrode material are greatly improved.

The invention discloses low-carbon coconut fiber modified ardealite vegetation concrete and a preparation method thereof. The ardealite vegetation concrete is prepared from the following components in parts by mass: 10 to 15 parts of anhydrous ardealite, 65 to 80 parts of natural aggregate, 0.5 to 2.5 parts of carbide slag, 3 to 9 parts of mineral powder, 0.07 to 0.5 part of alkali modified coconut fiber and 0.1 to 0.5 part of water reducing agent. The low-carbon coconut fiber modified ardealite vegetation concrete has excellent mechanical properties, ecological compatibility and durability, and the preparation method is simple, low in cost and suitable for industrial application.

The application discloses an improver for treating cadmium contaminated soil and a preparation method thereof, and belongs to the technical field of heavy metal contaminated soil treatment. The improver comprises the following raw materials: iron oxide, tri-potassium phosphate, biochar, corn sugar residue, xanthan gum, sodium citrate, vitamin E, arbutin, bilirubin and sodium bicarbonate. The improver is applied to cadmium contaminated soil, cadmium ions in the soil can be adsorbed and precipitated to form cadmium precipitates, the toxicity of the cadmium ions is reduced, earthworms ingest the cadmium precipitates into the body and fix them, so that the cadmium content in the soil is reduced. The improver can also promote the absorption, ingestion and digestion of cadmium ions by earthworms, maintain the normal physiological activities of the earthworms, reduce the toxic effect of cadmium on the earthworms, and make the earthworms better treat cadmium contaminated soil. The preparation method of the improver is simple, good in effect and friendly to the environment.

The invention discloses a zinc-based catalyst for gas-solid phase acetylene hydration reaction and a preparation method of the zinc-based catalyst, relates to the technical field of catalyst preparation, and solves the problems of poor stability, loss of active components and carbon deposition when the catalyst participates in acetylene hydration reaction to produce acetaldehyde. The preparation method comprises the following steps of: adding 200 milliliters of deionized water and magneton into two beakers, marking the two beakers as No.1 and No.2, respectively adding 200 milliliters of deionized water and magneton into the beakers, turning on a magnetic stirrer, adjusting a constant temperature system of the stirrer to 20-40 DEG C, and adjusting the stirring speed to 500 revolutions per minute; 2, 1.35 g of zinc chloride is added into the first beaker under the condition that the temperature is kept at 20-40 DEG C and the stirring speed is 500 rpm. According to the prepared catalyst, ZIF-8 which is high in porosity, adjustable and controllable in crystal structure and good in thermal stability serves as a precursor, sodium diethyldithiocarbamate trihydrate serves as a heteroatom doping agent, and the catalyst has the advantages of being low in price and high in yield.

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 invention provides a method for recycling and regenerating a positive electrode material from a lithium ion battery and modifying the positive electrode material. The method comprises the following steps: pretreating the waste lithium ion battery to obtain waste positive electrode material powder; then leaching valuable metal elements in the positive electrode material by using sulfuric acid and oxalic acid to obtain a leaching solution rich in valuable metals; adjusting the molar ratio of nickel, cobalt and manganese in the leachate, and preparing a nickel, cobalt and manganese oxalate precursor by adopting an oxalic acid co-precipitation method; and mixing and grinding the precursor and a proper amount of tungsten source and lithium source, and then synthesizing the tungsten-doped modified nickel-rich ternary positive electrode material by adopting a high-temperature solid-phase method. When the modified high-nickel ternary positive electrode material is used as a positive electrode of a lithium ion battery, the positive electrode material can simultaneously have excellent energy density, structural stability and conductivity, so that the rate capability, the cycle performance and the safety performance of the battery can be remarkably improved.

The invention belongs to the field of catalyst materials, and discloses a cobalt-based oxide catalyst material and a preparation method and application thereof, and the cobalt-based oxide catalyst material comprises the following raw materials by mass: 0.66-4.66% of carbon cloth; 24.82 to 34.82 percent of cobalt salt; the content of the methylimidazole is 62.32 to 73.32 percent; 0.01 to 0.1 percent of manganate; and 0.01 to 0.1 percent of iridium salt. The cobalt-based oxide catalyst material is prepared by doping manganese and loading iridium in the cobalt oxide catalyst, the catalytic activity and the stability of the cobalt oxide in an oxygen evolution reaction under an acidic condition are optimized, and compared with other cobalt-based oxide catalysts, the cobalt-based oxide catalyst has the advantages that the performance is remarkably improved, and the cobalt-based oxide catalyst material is suitable for an efficient acidic water decomposition electrolytic bath system; meanwhile, a carbon cloth loaded manganese-doped cobalt oxide material is prepared by doping second metal manganese, so that the structural stability of the cobalt-based oxide catalyst material is improved, the structural collapse caused by dissolution of the catalyst in an acid medium is effectively prevented, and the loss of active ingredients in the catalyst in the reaction process is inhibited.

This invention discloses a cerium-doped calcium-based photothermal catalyst supported on carbon nanotubes and its application in the preparation of biodiesel, belonging to the field of catalysis technology. The photothermal catalyst is prepared by the following method: a calcium source and a cerium source are mixed and dissolved in an aqueous ethanol solution, then multi-walled carbon nanotubes are added and stirred to load the calcium and cerium sources onto the surface of the multi-walled carbon nanotubes. The mixture is then dried to remove the solvent; calcined under nitrogen protection; and after calcination, naturally cooled to obtain the cerium-doped calcium-based photothermal catalyst supported on carbon nanotubes. This invention utilizes the strong electronic interaction between cerium and calcium to regulate the structure of active sites, inhibiting the aggregation and loss of active components, while simultaneously enhancing the catalyst's broad-spectrum light absorption and photothermal conversion capabilities, thereby achieving efficient and green biodiesel production.

The invention relates to a catalyst for acetylene dimerization reaction as well as a preparation method and application thereof. The invention discloses a catalyst for acetylene dimerization reaction. The catalyst comprises a main catalyst, a ligand and a carrier, the main catalyst is copper chloride; wherein, the ligand is 1-ethyl-2-pyrrolidone, and the ligand is 2-methyl-2-pyrrolidinone; the carrier is coconut shell activated carbon. According to the catalyst for acetylene dimerization reaction as well as the preparation method and the application of the catalyst, water is taken as a solvent, 1-ethyl-2-pyrrolidone is taken as a ligand, and the catalyst has the characteristics of low price and environment friendliness, and is high in acetylene activation capacity, acetylene conversion rate and vinyl acetylene selectivity.

The application discloses instant flower glue with high elasticity and high glycosaminoglycan retention rate and a preparation method thereof. After cleaning and steaming of the flower glue, the flower glue is soaked in water below 20 DEG C, then mixed and dissolved with donkey-hide gelatin instant powder, milk and granulated sugar, sealed, filled and sterilized, and finally cooled by water cooling, with the cooling rate controlled within 10-15 DEG C / min, so that the center temperature of the product is steadily decreased to 25+ / -0.5 DEG C, and the instant flower glue is prepared. The instant flower glue prepared by the method has excellent texture characteristics, Q elastic and smooth, and does not stick to teeth. The flower glue has good water retention, and the proportion of free water is as high as 85% or more. Most importantly, the method maximally retains glycosaminoglycan in the flower glue, and the degradation of active ingredients such as chondroitin sulfate is reduced, and the dry base content is high.

The application discloses a manganese monatomic carbon-based electrocatalyst with a core-shell structure and a preparation method and application thereof. A solvent thermal reaction is carried out by adding manganese nitrate solution and 1H-1,2,3 triazole into N,N dimethylformamide solvent, and MET-2 mixed dicyandiamide prepared through the solvent thermal reaction is pyrolyzed in a vacuum environment. In the application, dicyandiamide is first heat-induced polymerized on the surface of MET-2 crystals to generate a graphene-like shell, and then gas molecules generated in the pyrolysis process can adjust the pore structure. The manganese monatomic carbon-based electrocatalyst with the core-shell structure prepared through the method has more excellent ORR activity than a Pt / C catalyst, and when the manganese monatomic carbon-based electrocatalyst is applied to a zinc-air battery, the zinc-air battery has higher energy density and stability than a zinc-air battery assembled by the Pt / C.

The invention relates to an ecological road paving system based on red mud pervious concrete, comprising: a sidewalk, the sidewalk comprising a first red mud pervious concrete layer and a first waterproof separation layer arranged up and down; the roadway comprises a second red mud pervious concrete layer, a graded broken stone layer and a second waterproof separation layer from top to bottom in sequence; the ecological ditch is arranged between the sidewalk and the roadway and comprises a ditch body with the top open, and a vegetation layer and a plurality of permeable wells arranged at certain intervals in the length direction of the ditch body are arranged in the ditch body. The permeable well is used for collecting water from the first red mud permeable concrete layer, the second red mud permeable concrete layer and the graded broken stone layer. A red mud vegetation concrete layer for purifying water is arranged at the upper part of the vegetation layer. The red mud permeable concrete material and the optimized road pavement layout are utilized, so that the effects of efficiently permeating water, reducing road surface runoff, controlling road surface runoff pollution and reducing road surface noise are achieved.

The application discloses application of a bimetallic catalyst in catalytic decomposition of hydrazinium nitrate and hydroxylamine nitrate in nitric acid, the bimetallic catalyst comprising a carrier and an active component supported on the carrier; the carrier is selected from oxides of titanium and / or oxides of cerium; the active component comprises a first active component and a second active component; the first active component is ruthenium; the second active component is selected from at least one of iridium and rhodium. The catalyst completely catalytically decomposes hydroxylamine nitrate and hydrazinium nitrate in a nitric acid system, and provides a method for removing hydroxylamine nitrate and hydrazinium nitrate under mild conditions. The catalyst raw material is easy to obtain, the process is simple, and the catalyst has a good application prospect.

The invention discloses a passion fruit fresh-keeping composite coating material and a preparation method thereof, and belongs to the technical field of fresh keeping. The passion fruit fresh-keeping composite coating material has the functional components of curcumin and chitosan quaternary ammonium salt, and a fresh-keeping film formed by coating the surface of a fruit with the material has good coating property and proper barrier property; the passion fruit preservative can simultaneously meet the special ventilation, dry and cool storage conditions of passion fruits and the preservation requirements of oxidation aging resistance and fruit water evaporation resistance, and has high practical application value, and the passion fruits preserved and preserved by the passion fruit preservative are good in appearance, taste and texture and long in shelf life.

This invention relates to a Ru / C cluster catalyst for the electrocatalytic PTA-to-CHDA reaction, its preparation method, and its application. The method employs a molten salt electrolyte containing carbonate; a Ru-containing compound and a morphology control agent are mixed with the molten salt electrolyte; heating is performed to form an ion-conducting molten electrolyte system; electrolysis at constant potential or constant current allows the Ru element in the precursor and the C element in the carbonate to be co-electrodeposited on the cathode surface, forming a supported metal catalyst; after electrolysis, cooling is performed, and the catalyst is collected from the cathode, washed, and dried to obtain the supported metal catalyst. This invention provides a one-step in-situ generation of amorphous carbon-supported supported Ru / C catalysts, effectively simplifying the complex multi-step preparation process of traditional catalysts, reducing energy consumption and production costs, and solving the problem of existing technologies struggling to prepare Ru-group cluster catalysts with uniform size, good dispersibility, and high stability.

The invention discloses an activated clay catalyst for removing trace olefin in reformate and a preparation method, and relates to the technical field of petrochemical industry. The catalyst has a core-shell structure, the core is activated clay loaded with L acid, and the shell layer is amorphous solid aluminosilicate; the preparation method comprises the following steps: acidifying and activating montmorillonite raw ore to obtain activated clay, carrying out ball-milling compounding on the activated clay and haloid to obtain composite clay nanoparticles, carrying out tetraethyl orthosilicate liquid phase deposition and roasting to obtain modified composite clay nanoparticles, and finally, carrying out hydrothermal crystallization and roasting on the modified composite clay nanoparticles, a template agent and aluminum hydroxide to obtain the modified montmorillonite composite material. The activated clay catalyst is obtained. The acidity of the catalyst is improved by loading the L acid, the catalytic performance can be further enhanced by the coated amorphous solid aluminosilicate, and when trace olefin in reformate is removed, the catalyst shows excellent catalytic activity and longer service life.

The invention provides an anti-crack and anti-impact UHPC (Ultra High Performance Concrete) board based on decoration wastes and a preparation method of the anti-crack and anti-impact UHPC board based on the decoration wastes. Comprising the following components: 120-200 parts of ordinary Portland cement, 60-80 parts of slag, 60-90 parts of decoration waste micro powder, 200-300 parts of decoration waste aggregate, 20-40 parts of steel fiber, 4-8 parts of waste fiber, 8-15 parts of an expanding agent, 3-6 parts of a water reducing agent and 50-60 parts of water. The anti-cracking and anti-impact UHPC board based on the decoration waste has the advantages of being high in strength, high in early strength development rate, good in anti-cracking and anti-impact performance and the like, all components in the decoration waste are fully utilized, the use amount of cement is greatly reduced, production carbon emission is reduced by about 50% compared with a traditional UHPC board, cost is low, sources are wide, and the anti-cracking and anti-impact UHPC board is suitable for industrial production. The method has good environmental and economic benefits, is suitable for large-scale popularization and industrial production, and has positive significance in promoting sustainable development of the building industry.