241 results about "Colloidal Solution" patented technology

The invention relates to the technical field of biological medicine, and particularly discloses an atopic dermatitis treatment medicine and a preparation method and application thereof.The preparation method comprises the steps that sodium alginate, sodium polyacrylate and water are mixed and then subjected to a swelling reaction, and a colloidal solution with the viscosity larger than or equal to 5000 cP is formed; mixing upatinib, a preservative, glycerol and azone to obtain a raw material phase; and mixing the colloidal solution with the raw materials, and homogenizing to obtain the atopic dermatitis treatment medicine. Through swelling reaction of sodium alginate and sodium polyacrylate, the viscosity of a colloidal solution is remarkably improved through molecular chain entanglement, charge repulsion and water absorption synergistic effects of sodium alginate and sodium polyacrylate; through compounding of all the components, the transdermal efficiency of the medicine is improved, the irritation of the medicine is reduced, and meanwhile, the inhibition efficiency on atopic dermatitis inflammatory factors is also improved.

The invention relates to the technical field of seed coating materials, and discloses a wheat and rice seed coating material and a coating process. The wheat and rice seed coating material comprises micron iron powder, nano calcium phosphate, nano magnesium hydroxide and a binder, the addition amounts of the micron iron powder, the nano calcium phosphate and the nano magnesium hydroxide respectively account for 10%-20%, 2%-10% and 3%-10% of the total weight of the seeds; the binder is at least one of a polyvinyl alcohol colloidal solution, a carboxymethyl cellulose colloidal solution and a hydroxypropyl methyl cellulose colloidal solution. The invention also provides a coating process of the wheat and rice seed coating material. The coating material disclosed by the invention not only can protect seeds, but also can efficiently adsorb and fix heavy metal ions of lead, cadmium and arsenic after the micron iron powder, the nano calcium phosphate and the nano magnesium hydroxide are slowly released in soil, so that integrated prevention and control from'seeds' to'rhizosphere 'is realized.

The application discloses a N2O decomposition catalyst taking waste and old rare earth-based denitration catalyst as raw material and a preparation method thereof, and the catalyst is prepared from the waste and old rare earth-based denitration catalyst, diatomite and kaolin as a N2O decomposition catalyst carrier, and a nickel-lanthanum composite oxide (NiLaO x ) as a catalytically active component. The waste and old rare earth-based denitration catalyst, diatomite and kaolin are prepared into the carrier through crushing, batching and calcining processes, a nickel-lanthanum composite oxide precursor is configured into a colloidal solution, then the carrier is immersed in the nickel-lanthanum composite oxide precursor colloidal solution, and the N2O decomposition catalyst is obtained through drying and calcining. The catalyst not only realizes harmless disposal of the waste and old rare earth-based denitration catalyst, but also uses the waste and old rare earth-based denitration catalyst as a high-value resource for N2O decomposition, and the catalyst has high N2O decomposition activity and strong stability.

An electrophoretic display with aligned microcell structure, comprising: a control substrate having a first surface and a second surface; a drive circuit layer, a control electrode layer, an electrophoretic layer, the drive circuit layer, the control electrode layer, the electrophoretic layer are sequentially arranged on the second surface of the control substrate; the electrophoretic layer has a microcell structure arranged above the control substrate and made of a polymer material, the microcell structure comprises a plurality of cell walls for defining a plurality of chambers filled with a colloidal solution, and the overlapping area of the cell walls and the control electrode in the projection direction of the viewing surface is less than 50% of the area of the control electrode.

The present application relates to a controllable preparation method of a colloidal crystal capillary column and its application in biomolecule separation, and specifically comprises the following steps: a plunger and an electroosmotic pump are prepared in situ at one end of a capillary; a buffer solution containing monodisperse colloidal particles is filled in an upper reservoir of an electric field assembly device, and a buffer solution is filled in a lower reservoir; the capillary is filled with the buffer solution, and the end of the capillary containing the electroosmotic pump is inserted into the lower reservoir; the dispersion of the colloidal solution is maintained by applying oscillation to the upper reservoir, an electric field is applied between the two reservoirs to make the colloidal particles move to the electroosmotic pump under the action of an electroosmotic flow, and a three-dimensional colloidal crystal is assembled; and the capillary is supplemented with an ultrasonic force to reduce lattice defects. The present application has the advantages of simple preparation process, controlled directional movement of colloidal particles through an electric field, improved assembly efficiency and quality of the three-dimensional colloidal crystal, and controllable assembly of the colloidal particles under the action of an electric field through regulation and control of the length and surface charge of the electroosmotic pump.

Provided are a method for producing microparticles capable of improving the purity of microparticles, and a colloidal solution. A method for generating microparticles using a femtosecond pulse laser includes an irradiation step of irradiating a powder material 5 in a solvent 6 with a femtosecond pulse laser to generate microparticles containing a metal atom, in which the powder material 5 has a mid-diameter larger than that of the microparticle and contains the metal atom. For example, the powder material 5 includes a first powder material containing a first metal atom and a second powder material containing a second metal atom different from the first metal atom, and the microparticle is an alloy containing the first metal atom and the second metal atom.

This invention discloses a TiC-Ti3C2T x The preparation method of MXene composite material includes: acid etching of Ti3AlC2 ceramic powder, washing of etching products, centrifugation, and ultrasonic layering to obtain single-layer and few-layer Ti3C2T. x Colloidal solution, then freeze-dried to obtain monolayer and few-layer Ti3C2T x Powder; TiC powder, dried Ti3C2T x TiC-Ti3C2T was prepared by high-shear emulsification and mixing of powder and polytetrafluoroethylene dissolved in anhydrous ethanol, followed by rotary evaporation, drying, and spark plasma sintering. x MXene composite material. This invention solves the problem of reinforcement dispersion in TiC ceramic matrix and addresses the issue of Ti3C2T under high-temperature sintering conditions. x The MXene phase transformation and oxidation problems are addressed, and the TiC matrix is ​​strengthened and toughened by inducing matrix grain refinement, crack deflection, crack bridging, and lamellar pull-out, thereby improving bending strength and fracture toughness.

The preparation method of the high-temperature-creep-resistant nano-composite pressure vessel steel comprises the following steps that a lead sulfide precursor is dissolved in an organic solvent, and heating reaction is conducted under the inert gas condition to generate lead sulfide quantum dots; mixing quantum dots with amphiphilic molecules, and performing ultrasonic emulsification to form a quantum dot colloidal solution; mixing the quantum dot colloidal solution with supercritical carbon dioxide to form a homogeneous fluid phase; the steel matrix is placed in a high-pressure reaction kettle, the homogeneous fluid phase is introduced, permeation is conducted for 2-4 h under the conditions that the pressure is 10-15 MPa and the temperature is 50-70 DEG C, and a steel billet is obtained; the steel billet is placed in hot isostatic pressing equipment, heat preservation and pressure maintaining are conducted for 1-2 h in the inert gas environment under the conditions that the pressure ranges from 150 MPa to 200 MPa and the temperature ranges from 800 DEG C to 900 DEG C, and then the steel billet is cooled to the room temperature; semiconductor quantum dots are introduced into a metal matrix, atomic-scale interface strengthening is achieved through the quantum effect and the supercritical fluid permeation technology, and the steady-state creep rate of the material at the temperature of 600 DEG C can be reduced to 1 / 10 of that of a traditional process by combining the microcosmic strengthening advantage of the quantum dots and the macroscopic permeation advantage of supercritical fluid.

The invention provides a preparation method for improving the solid content of a glue solution in the production process of a catalytic cracking catalyst, and belongs to the technical field of catalytic cracking catalyst preparation. According to the method, the mixing sequence of a silicon source and an aluminum source is optimized, the pH value and temperature of a reaction system are controlled, and a composite dispersing aid is introduced, so that the problems of difficulty in subsequent catalyst forming, unstable activity and the like caused by low solid content of a glue solution in a traditional preparation process are solved. The method is characterized by comprising the steps of (1) preparing an aluminum source solution, (2) preparing a silicon source dispersion liquid and (3) preparing a glue solution through a mixed reaction, the solid content of the glue solution can be increased to 38-45%, the glue solution is good in dispersion uniformity and free of obvious agglomeration phenomenon, the abrasion index of the subsequently prepared catalytic cracking catalyst is reduced by 8-12%, the catalytic activity is improved by 5-8%, and the method is suitable for large-scale industrial production.

The application belongs to the technical field of medical materials, and discloses a hydrogel for graded release of acid and long-acting consumption of alkali as well as a preparation method and application thereof, which comprises the following steps: adding a quaternary ammonium salt chitosan solution into a polyvinyl alcohol-organic acid ester solution, stirring uniformly to obtain a polyvinyl alcohol-organic acid / quaternary ammonium salt chitosan solution; under stirring, adding a nano metal sulfide colloidal solution into the polyvinyl alcohol-organic acid / quaternary ammonium salt chitosan solution, stirring uniformly, and repeatedly freezing and thawing to obtain the hydrogel for graded release of acid and long-acting consumption of alkali after thawing. The application proposes a strategy for graded release of acid and long-acting slow release of alkali, the hydrogel slowly releases acid in application, and the process of long-acting consumption of alkali liquid avoids secondary damage of an acid-alkali reaction to a cornea, so that the hydrogel has a good application prospect in clinical application of corneal alkali burn and opens up a new way for application of H2S in corneal alkali burn.

A method for producing a gold colloid-labeled antibody suspension, comprising: a labeling step of obtaining a mixture by mixing a gold colloid solution and an antibody solution to obtain a gold colloid-labeled antibody in the mixture; a centrifugation step of centrifugating the mixture to obtain a precipitate of the gold colloid-labeled antibody and removing the supernatant containing antibody that does not have gold colloid adsorbed; and a suspension step of suspending the precipitate of the gold colloid-labeled antibody in a suspension solution containing lactalbumin to obtain a gold colloid-labeled antibody suspension.

The invention relates to a surface-enhanced flexible Raman substrate, a surface-enhanced Raman sensor for nano-plastic trace detection and a preparation method of the surface-enhanced Raman sensor. The preparation method of the surface-enhanced flexible Raman substrate comprises the following steps: preparing a colloidal solution by taking BNCs, a CS solution and a HAuCl4 aqueous solution as raw materials; the preparation method specifically comprises the following steps: dispersing an aqueous solution of HAuCl4 into an aqueous solution of BNCs, adding pvp for physical mixing and stirring, and then adding ethanol to obtain a mixture; and irradiating the mixture with laser, washing with deionized water for three times to obtain a BNCs / AuNWs colloidal solution, dropwise adding a CS solution, stirring, and carrying out suction filtration on the colloidal solution to obtain the BNCs / AuNWs coated CS surface-enhanced Raman scattering substrate. The CS substrate enhances molecular adsorption, so that the adsorption rate of the nano-scale plastic particles is greatly improved, the gold nanoparticles generate an enhanced LSPR effect on the surface of the substrate, a Raman signal is improved by 60-63 times, and the detection efficiency is improved.

The invention discloses reaction equipment for preparing low-sodium aluminum sol, and relates to the technical field of chemical equipment, the reaction equipment comprises a reaction kettle, and the reaction kettle is internally provided with an inner cavity for aluminum sol preparation reaction. The invention further discloses a reaction method of the reaction equipment for preparing the low-sodium aluminum sol. The reaction method comprises the following steps of aluminum sol generation, aluminum sol transfer, product discharge and back flushing. The reaction kettle, the fixed cover and the annular cover are arranged, metal aluminum and hydrochloric acid react in the reaction kettle to generate a colloidal solution of aluminum sol, the colloidal solution of the aluminum sol is in a nano-particle state after generation, and the colloidal solution of the aluminum sol is directly transferred into the annular cover at the moment; the aluminum sol colloidal solution in the nano-particle state passes through the ion exchange column in the annular cover, sodium ions in the aluminum sol colloidal solution are adsorbed and separated by the strong-acid cation exchange resin in the ion exchange column, and therefore the low-sodium aluminum sol can be obtained.

This invention relates to a microwave radiation method for preparing room-temperature phosphorescent polymer films based on polyacrylamide, belonging to the field of organic light-emitting materials. The method involves dissolving acrylamide monomer, ammonium persulfate initiator, and β-diketone ligand in a mixed solvent of water and acetonitrile, placing the solution in a microwave reactor, and polymerizing it under microwave radiation to obtain the polymer. The resulting colloidal solution, dissolved in deionized water, is uniformly coated onto a polytetrafluoroethylene (PTFE) or silicone plate, and dried to obtain the room-temperature phosphorescent polymer film based on polyacrylamide. The prepared polymer film exhibits blue or blue-green fluorescence and a green afterglow. The polymer film containing 4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedione has an afterglow time of up to 7.5 seconds. The raw materials of this invention are readily available, the preparation method is simple, convenient, and rapid, requiring no inert gas protection, the solvent does not require treatment, polymerization can be completed in minutes, and the obtained material is non-toxic, non-polluting, free of heavy metals and halogens, has good water solubility, and has broad application prospects.

This invention belongs to the field of lithium resource extraction technology, specifically relating to a polypyrrole-coated MXene / lithium iron phosphate composite aerogel material, its preparation method, and its application. The preparation method of the polypyrrole-coated MXene / lithium iron phosphate composite aerogel material of this invention includes the following steps: S1, mixing MXene colloidal solution with lithium iron phosphate powder, stirring and dispersing to obtain mixture A; adding a pyrrole monomer solution to mixture A, stirring to allow the pyrrole monomer to adsorb onto the surfaces of MXene and lithium iron phosphate; S2, adding an initiator solution to the system obtained in step S1 to initiate in-situ polymerization of the pyrrole monomer, forming an MXene / LFP / PPy composite hydrogel; S3, washing and freeze-drying the composite hydrogel. The polypyrrole-coated MXene / lithium iron phosphate composite aerogel material of this invention helps improve lithium extraction efficiency and exhibits good cycle stability.

The present application belongs to the technical field of environmental data analysis, and particularly relates to a method for predicting heavy metal concentration in soil colloid solution based on a machine learning model. Colloid extraction is performed on heavy metal contaminated soil samples, and characteristic variables of the soil colloid solution are determined. The characteristic variables are standardized and coded, and the preprocessed characteristic variables are respectively input into pre-trained machine learning models for predicting the concentrations of As, Cd, Pb and Zn in the soil colloid solution to obtain predicted values corresponding to the heavy metal concentrations. The pre-trained machine learning models for As and Pb are two-stage models, the first stage being a release probability classification model and the second stage being a release amount regression model. The pre-trained machine learning models for Cd and Zn are single-stage regression models. The present application provides a method for predicting heavy metal concentration in soil colloid solution based on a machine learning model, which provides a reliable technical method for accurately predicting heavy metal release characteristics.

The invention discloses a method for preparing porous zirconia ceramic by low-temperature sintering, which comprises the following steps: S1, mixing citric acid, zirconium acetylacetonate and absolute ethyl alcohol according to a certain proportion to obtain a colloidal solution A; s2, mixing inorganic yttrium salt, inorganic zirconium salt and water according to a certain proportion to obtain a mixed solution B; s3, slowly adding the colloidal solution A into the mixed solution B obtained in the step S2; s4, drying the colloidal solution to obtain a dried precursor; s5, carrying out low-temperature calcination on the dried precursor to obtain nano yttrium-stabilized zirconia powder; s6, performing ball milling and spray granulation on the powder to obtain spherical granulation powder with uniform particle size; s7, carrying out dry pressing molding and cold isostatic pressing molding to obtain a to-be-sintered ceramic biscuit; and S8, sintering in a muffle furnace to obtain the final porous zirconia ceramic. After the powder is subjected to ball milling, granulation, dry pressing and cold isostatic pressing, the zirconia ceramic which is uniform in pore diameter and has nano-scale pores is prepared through low-temperature sintering.

The invention discloses a heteromorphic covalent organic framework membrane as well as a preparation method and application thereof, and belongs to the technical field of separation membrane materials. The method comprises the following steps: firstly, synthesizing a COF nanosheet colloidal solution through a homogeneous solution method; then carrying out suction filtration on the colloidal solution to a porous supporting base membrane to form a crystalline COF layer; and finally, growing an amorphous COF layer on the surface of the crystalline COF layer in situ through interfacial polymerization, and carrying out heat treatment to obtain the heteromorphic covalent organic framework film. According to the invention, the rigid crystalline COF is used for providing a long-range ordered pore channel, the flexible amorphous COF is used for strengthening the controllable processability to make up the defect, a rigid-flexible heteromorphic configuration is formed, and the construction of the continuous defect-free COF film is realized. The preparation method is simple, the characteristics of a crystalline state and an amorphous state are coupled, a multi-layer sub-nanometer mass transfer channel is formed in the membrane, high permeability and high rejection rate are shown in the separation process of organic pollutants in water, and good long-term separation stability is achieved.

The invention discloses a Ti < 3 > C < 2 > T < x > MXene-GQD nano composite material as well as a preparation method and application thereof, and relates to the technical field of composite material preparation. The method comprises the following steps: dissolving LiF in a hydrochloric acid solution, and adding Ti3AlC2 powder to prepare a colloidal solution; the preparation method comprises the following steps: dissolving citric acid in deionized water, and then carrying out hydrothermal carbonization to prepare a GQD solution; and mixing the colloidal solution and the GQD solution, and stirring to obtain the nano composite material. According to the invention, the Ti3C2Tx MXene two-dimensional lamellar structure is utilized to stabilize the GQD nanoparticles, so that the GQD nanoparticles are uniformly dispersed and are not easy to agglomerate, and the long-term uniformity is ensured; by utilizing the photothermal effect of Ti3C2Tx MXene and the photodynamic effect of GQD, the dual photoresponse antibacterial efficiency is realized, the infection of drug-resistant bacteria can be efficiently inhibited, a non-antibiotic way is provided for treating the drug-resistant bacteria, and the infection problem and the related postoperative pain problem are effectively controlled in practice.

The invention discloses a hydrophilic colloid wet film preparation and permeability test method, which comprises the following steps: pouring hydrated hydrophilic colloid liquid into a front feeder and a rear feeder, stopping adding the hydrophilic colloid liquid and starting to cool when a wet film forming channel is completely filled with the hydrophilic colloid liquid, after the hydrophilic colloid liquid is completely solidified, the left baffle and the right baffle are taken down, and a hydrophilic colloid wet film is prepared; adding a detection solution into the left inner cavity, adding a pure solvent into the right inner cavity, balancing for a certain time, transferring a certain volume of a detection sample in the right inner cavity, transferring a sample with the same volume from the left inner cavity, discarding the sample, and calculating the permeability of the hydrophilic colloid wet film to a corresponding detection substance through analysis and test. According to the invention, the change, pollution and loss of the hydrophilic colloid wet film in the transfer process can be avoided, so that the accuracy of the tested permeability can be correspondingly improved.

A hydrate decomposition inhibiting composition, a coupling enhanced solid hydrate, and a method for improving the solid hydrate storage and transportation stability relating to the technical field of natural gas safety storage and transportation are provided. The hydrate decomposition inhibiting composition contains a carboxymethyl starch salt and an alkyl glycoside surfactant. The composition improves the interface stability of the hydrate phase boundary and the mechanical stability of the hydrate and enhance the strength of the hydrate crystal interface since the colloidal solution formed by dispersing the sodium carboxymethyl starch and the alkyl glycoside surfactant in water can coat the surface of the hydrate to form a protective layer, thereby improving the structural stability of the hydrate. Therefore, the composition inhibits the decomposition of the hydrate, reduces the decomposition rate of the hydrate, and can further reduce the decomposition amount of the hydrate.

The invention belongs to the technical field of catalysts, and discloses a preparation method and application of a catalyst for hydrogen production through ethanol cracking and acetaldehyde as a byproduct. The preparation method comprises the following steps: dissolving copper nitrate trihydrate, zinc nitrate hexahydrate and nickel nitrate hexahydrate in deionized water, then adjusting the pH value to 10.5-12.5 by using ammonia water, stirring for 30-40 minutes, then adding alkaline silica sol, stirring for 2-2.5 hours, then adding a tetraethoxysilane solution and a molybdenum disulfide quantum dot colloidal solution, stirring for 2-2.5 hours, carrying out rotary evaporation and drying, and roasting for 6 hours in an air atmosphere of 550 DEG C to obtain a molybdenum disulfide quantum dot precursor; and finally, heating to 300 DEG C in a nitrogen atmosphere, and reducing for 5 hours at 300 DEG C in a mixed atmosphere of hydrogen and nitrogen to obtain the catalyst. The prepared catalyst has excellent activity, selectivity and stability. Therefore, the method has a wider application prospect in the field of hydrogen production by ethanol cracking and acetaldehyde as a byproduct.

This invention provides a method for preparing high-purity ultrafine yttrium oxide, relating to the field of ultrafine oxide powder preparation technology. The method involves removing impurities from a 5N-6N grade yttrium chloride solution to obtain a yttrium chloride solution with low non-rare earth impurities. While emulsifying and shearing an ammonia solution, the low-non-rare earth impurity yttrium chloride solution is introduced into the solution via atomization until the pH of the resulting solution reaches 8-10, yielding a yttrium hydroxide colloidal solution. While emulsifying and shearing the yttrium hydroxide colloidal solution, an oxalic acid solution is introduced into the solution via atomization until the pH of the resulting solution reaches 1.8-2.5. The solution is then filtered to obtain ammonium oxalate yttrium precipitate. Finally, calcination yields high-purity ultrafine yttrium oxide powder. This invention can prepare high-purity ultrafine yttrium oxide with a purity of 99.999-99.9999%, D... 50 The diameter is 0.3–0.5 μm, D 90 With a diameter of less than 1.0 μm, it is suitable for applications such as transparent ceramics and electronic ceramics.

An electrophoresis display with tapered micro partition structure includes a control substrate having a first face and a second face, a driving circuit layer, a control electrode layer, and an electrophoresis layer. The driving circuit layer, the control electrode layer, and the electrophoresis layer are sequentially arranged on the second face. The electrophoresis layer includes a micro partition structure arranged on the control substrate and made from polymer material. The micro partition structure includes a plurality of partition walls to define chambers for accommodating a colloidal solution. The sectional width of the partition wall decreases with a layer number of a polymer stacks forming the partition wall increases.

The invention provides a preparation method of a water-proof and oxygen-proof nanocrystal composite material, which comprises the following steps: atomizing and drying a solution I containing a nanocrystal precursor and a polymer to obtain nanocrystal composite particles, dispersing the nanocrystal composite particles in a colloidal solution, ultrasonically and uniformly mixing the nanocrystal composite particles with a solution II containing a water-proof and oxygen-proof polymer, and performing secondary atomizing and drying to obtain the water-proof and oxygen-proof nanocrystal composite material. And forming a polymer protective layer with water and oxygen barrier property on the surfaces of the nanocrystalline composite particles to obtain the water-proof and oxygen-proof nanocrystalline composite material. The nanocrystalline composite material can be dispersed in packaging base materials such as EVA and POE, has high photoelectric conversion efficiency, maintains long-term environmental stability, and remarkably prolongs the service life of a display device. According to the preparation method, the nanocrystalline composite material is prepared by adopting a secondary spray drying process, the destructive effect on the nanocrystalline material in a traditional liquid phase coating method is avoided, the second waterproof oxygen-barrier polymer layer can greatly improve the environmental stability of the nanocrystalline material, and meanwhile, the nanocrystalline material can be prepared with high efficiency and high material utilization rate; and the method is suitable for large-scale production.

This invention relates to a method for synthesizing multicolored luminescent polymer films using a microwave approach. The method first involves dissolving acrylamide, ammonium persulfate, and α-thiophenecarboxylic acid trifluoroacetone in a solvent, then refluxing the mixture under microwave power. After cooling to room temperature, polymer A is precipitated with methanol. Polymer A is then dissolved in deionized water, europium nitrate solution is added, the pH is adjusted to neutral, the mixture is shaken, and after standing, polymer B is precipitated with methanol. Finally, polymer B is dissolved in deionized water to obtain a colloidal solution. The colloidal solution is dropped into a silicone mold and dried to obtain the multicolored luminescent polymer film. This invention provides a simple, convenient, and rapid preparation method that does not require inert gas protection and can complete polymerization within minutes, showing broad application prospects.

The invention relates to a high-stability perovskite quantum dot film and a preparation method thereof, and belongs to the technical field of photoelectric functional materials.The high-stability perovskite quantum dot film is obtained by compounding and curing a composite perovskite quantum dot colloidal solution and polydimethylsiloxane under a certain condition. Calcium ions in a composite perovskite quantum dot colloidal solution serve as Lewis acid, surface oleic acid molecules are effectively replaced, stable chemical bonding is established, the structural stability is enhanced, meanwhile, vacancy defects are filled with iodide ions, surface defects are passivated, in addition, carboxylate radical groups on the surfaces of Zr-MOFs have the very high electron donating characteristic, and therefore the Zr-MOFs material can be used for preparing the high-electron-donating Zr-MOFs material. Pb ions on the surface of after-treatment perovskite quantum dot powder can be effectively passivated, a hydrophobic shell of Zr-MOFs can reduce contact between water molecules and composite perovskite quantum dots, and then a physical protective shell is formed after curing of polydimethylsiloxane, so that erosion of gases such as hydrogen sulfide and oxygen is further isolated.

The invention relates to the technical field of catalysts, in particular to a carbon monoxide catalyst capable of being regenerated in situ, a preparation method and application. The catalyst is prepared by the method. The method comprises the following steps: uniformly mixing prepared carbon deposition repairing powder and prepared active catalytic powder according to a mass ratio of 1: (1-2) to obtain composite powder; uniformly mixing the composite powder, a colloidal solution and water according to the mass ratio of 20: (3-5): (25-40) to obtain slurry with the solid content of 30%-45%; and coating a carrier with the slurry, and sequentially carrying out third drying treatment and third roasting treatment to obtain the carbon monoxide catalyst capable of being regenerated in situ. The application comprises application of the catalyst in catalytic oxidation of carbon monoxide and application of the catalyst in regeneration after carbon deposition. The catalyst prepared by the invention not only can catalytically oxidize carbon monoxide into carbon dioxide, but also has a carbon deposit repairing function and an in-situ regeneration function at 330-350 DEG C.

The present application relates to the technical field of catalyst, in particular to a carbon monoxide catalyst capable of in-situ regeneration, a preparation method and application thereof. The catalyst is prepared by the method. The method comprises the following steps: uniformly mixing carbon deposition repair powder and active catalyst powder prepared according to a mass ratio of 1:1-2 to obtain a composite powder; uniformly mixing the composite powder, a colloidal solution and water according to a mass ratio of 20:3-5:25-40 to obtain a slurry with a solid content of 30%-45%; and coating the slurry on a carrier, and then sequentially performing third drying treatment and third calcination treatment to obtain the carbon monoxide catalyst capable of in-situ regeneration. The application comprises the application of the catalyst in catalyzing the oxidation of carbon monoxide, and the application of the catalyst in regeneration after carbon deposition. The catalyst prepared by the present application not only can catalyze the oxidation of carbon monoxide into carbon dioxide, but also has the functions of carbon deposition repair and in-situ regeneration at 330-350 DEG C.

A working process for beating the Handmade Soba is classified into water circulation, rolling and cutting. To solve the problem that the most important and hard work is water circulation and buckwheat without water circulation is bad taste. This watering work is a hard work. If this work can be abolished, the effort of the soba making can be reduced, and anyone can easily beat beside.SOLUTION: The need for water circulation can be eliminated by replacing a necessary amount of water required for water circulation with a gelled liquid obtained by pregelatinizing cereal flour, buckwheat flour, starch, flour, refined rice flour, top-grade rice flour, or the like, a colloidal liquid, and a soft drink made from sugars, salts, and high-fructose corn syrup, and mixing the soft drink with buckwheat flour for 20 to 30 seconds. The amount of water required at this time is 50 to 60% by weight with respect to the flour.SELECTED DRAWING: None.