13results about How to "Simple and fast manufacturing method" patented technology

The invention discloses a superfine medium-entropy nanoparticle catalyst for electrochemical oxidation of ethylene glycol and other micromolecules as well as a preparation method and application of the superfine medium-entropy nanoparticle catalyst. The catalyst comprises a superfine medium-entropy nano-particle metal material and a conductive substrate material, the superfine medium-entropy nano-particle metal material comprises copper metal and at least two precious metals, and the catalyst has outstanding catalytic ability. The preparation method of the catalyst is simple and convenient, and only the superfine medium-entropy nanoparticle metal material needs to be synthesized through a solvothermal method and is loaded on the conductive substrate material; the temperature of the whole synthesis process is lower than 200 DEG C, so that the problems of high cost, high energy consumption, poor stability, large potential safety hazard and the like in the traditional synthesis method are solved. The superfine medium-entropy nanoparticle catalyst prepared by the invention shows excellent performance in oxidation of micromolecules such as electro-catalysis ethylene glycol and the like. By taking ethylene glycol electrooxidation as an example, the Pb-CuPtPd MEANs-C can efficiently and stably convert ethylene glycol into glycollic acid, the mass activity of the Pb-CuPtPd MEANs-C under 0.9 V vs.RHE reaches up to 14 A mg <-1 > PtPd, and the Faraday efficiency (FEGA) of glycollic acid production is 82.3%.

The application provides a method for simultaneously synthesizing thioether compounds and nitrile compounds, and belongs to the technical field of organic synthesis; the thioamide compound, fluoride and acetonitrile are mixed, then a phenylacetylene precursor is added, so that the thioether compound and the nitrile compound are simultaneously synthesized at room temperature; the method is simple and fast, does not need transition metal catalysis, has a wide substrate range, the fluoride source used is cheap and easy to obtain, and does not cause environmental pollution; the method has the advantages of simple process, mild reaction condition, good universality and the like, and the yield of the synthesized thioether compound and nitrile compound is very high, the thioether compound and the nitrile compound can reach 98% at most, and has extremely high industrial popularization value.

This invention belongs to the field of feed technology, specifically relating to a beef cattle feed containing Artemisia annua and its preparation method. Artemisia annua is added to an acetic acid aqueous solution, boiled at a specified temperature for a specified time, filtered, and cooled. The cooled Artemisia annua is then mixed with forage to obtain the beef cattle feed containing Artemisia annua. The preparation method of this application is simple and convenient, greatly improving the palatability of Artemisia annua and effectively increasing its utilization rate. Furthermore, experiments have shown that feeding cattle with the beef cattle feed prepared in this application as roughage does not adversely affect their growth and development; the average weight gain of cattle is the same as that fed with ordinary roughage. Moreover, the beef cattle feed of this application can reduce the incidence of foot-and-mouth disease in cattle, helping them resist the disease.

The invention relates to the technical field of catalyst preparation, and discloses a preparation method of a high-dispersion copper-based catalyst and application of the high-dispersion copper-based catalyst in preparation of CHDM, the preparation method comprises the following steps: (1) adding a copper salt, a manganese salt, an aluminum salt and a rare earth metal salt into water, and dissolving to obtain a mixed salt solution; sodium hydroxide and sodium carbonate are added into water to be dissolved, and a mixed alkali solution is obtained; (2) reacting the mixed salt solution and the mixed alkali solution in a micro-liquid membrane reactor, after the reaction is completed, carrying out crystallization reaction on the obtained suspension, and then centrifuging and drying to obtain a quaternary hydrotalcite precursor; and (3) roasting and reducing the quaternary hydrotalcite precursor to obtain the copper-based catalyst. According to the copper-based catalyst, Cu nanoparticles are highly dispersed on the surface of a composite metal oxide, the copper-based catalyst is applied to 1, 4-cyclohexanedicarboxylic acid dimethyl ester reaction hydrogenation for preparing 1, 4-cyclohexanedimethanol, excellent catalytic activity and stability are shown, and CHDM has a high trans-cis ratio.

This invention provides a biological filter media ceramic particle for removing perchlorate from water and its preparation method. The preparation method of the biological filter media ceramic particle of this invention includes mixing the filter media ceramic particle with an iron modifier and performing a shaking treatment to obtain iron-modified biological filter media ceramic particle. The iron modifier impregnation of the biological filter media ceramic particle ensures sufficient contact between iron ions and the biological filter media ceramic particle, thereby loading the iron ions onto the biological filter media ceramic particle. The modified biological filter media ceramic particle can remove phosphorus, ammonia nitrogen, and COD, and also enhances the adsorption capacity of the biological filter media ceramic particle for perchlorate, which can significantly improve the removal efficiency of the biological filter media ceramic particle for perchlorate.

The present application relates to a kind of polybenzidine nanofiber and its preparation method, the polybenzidine nanofiber length is 43~67 μm, and the length-diameter ratio is 120~256.Its preparation method is as follows: benzidine is dissolved in solvent, when the system pH value is 3~6, benzidine and hydrogen peroxide occur oxidation polymerization reaction under the catalysis of divalent copper salt to obtain polybenzidine nanofiber.The polybenzidine nanofiber provided by the present application morphology is regular and controllable and has high length-diameter ratio, and conductivity is high, as a kind of semiconductor high polymer material has potential application prospect in battery, supercapacitor.

The invention discloses a composite material as well as a preparation method and application thereof. The composite material comprises a core, a shell layer and a satellite body, the material of the core comprises an organic matter slow-release material; the material of the shell layer comprises a porous mineral material loaded with an electron shuttle, and the shell layer coats the core; the material of the satellite body comprises a Fe3O4 and iron reducing bacteria compound; and the satellite body is adsorbed on the surface of the shell layer. The composite material provided by the invention realizes integration of positioning, activation and slow release, can be actively anchored on the surface of a soil mineral needing to be activated, can accurately activate the soil mineral in situ and maintain the continuity of an iron reduction process, and releases fixed nutritional ingredients in soil.

The invention belongs to the technical field of animal husbandry medicines, and particularly relates to a wormwood extract, a preparation method and application of the wormwood extract in preparation of a medicine for preventing foot-and-mouth disease of beef cattle. The method specifically comprises the following steps: adding artemisia desertorum into an acetic acid aqueous solution, boiling at 60-100 DEG C for specified time, filtering and cooling; and adding the cooled artemisia desertorum into an ethanol solution, soaking for a second time at room temperature, and carrying out material-liquid separation to obtain a leaching solution, namely the artemisia desertorum extract. The wormwood extract can prevent cattle from being infected with the foot-and-mouth disease, in the high-incidence period of foot-and-mouth disease infection, the morbidity of cattle taking the wormwood extract is only 10%, the morbidity is reduced by 10% compared with that of cattle taking common diet (the morbidity is 20%), the foot-and-mouth disease of cattle is effectively prevented, and no adverse effect is generated on growth and development of the cattle. In addition, the wormwood is wide in source and low in cost, and the preparation method is simple, convenient and suitable for large-scale breeding and popularization.

This invention relates to a polyimide-doped silver nanowire polarizer and its preparation method, comprising: providing a polyimide solution-dispersed silver nanowire ink; starting a casting machine, coating the polyimide solution-dispersed silver nanowire ink onto a stainless steel strip of the casting machine, and drying it at a first temperature to obtain a polyimide-doped silver nanowire cast film; placing the polyimide-doped silver nanowire cast film in a heating and stretching device, and unidirectionally stretching it to 2-4 times its original size at a second temperature to obtain a polyimide-doped silver nanowire stretched film; placing the polyimide-doped silver nanowire stretched film in a tunnel-type imidization baking oven, and baking and curing it at a third temperature before winding it up to obtain a polyimide-doped silver nanowire polarizer. This method not only achieves large-area thin-film and ultra-thin production of metal wire grid polarizers, but also enables the use of thin-film polarizers in high-temperature polarizing devices. The process is simple and easy to industrialize.

The invention discloses a chicken peptide protein reactant capable of preventing or relieving alcoholic liver injury as well as a synthetic peptide and an application of the chicken peptide protein reactant. According to the preparation method, protease and tryptophan are added into the chicken enzymolysis product, and enzyme deactivation is performed after proteoid reaction, so that the prepared chicken peptide proteoid reactant has relatively good ADH stable activity and antioxidant activity, and the ADH stable activity and the antioxidant activity are remarkably improved compared with those of the chicken enzymolysis product CP; meanwhile, the digestion stability of the chicken peptide is also improved, and the chicken peptide has a better effect of preventing and treating the alcoholic liver injury. The peptide fragment is further analyzed by mass spectrometry, and six synthetic peptides which are identified and synthesized from chicken peptide protein reactants also have better ADH stable activity and antioxidant activity. More sources and options are provided for protein polypeptide substances with ADH activity and antioxidant activity, the preparation method is simple, convenient and rapid, reaction conditions are mild, and the protein polypeptide can be better used for preparing products for preventing and treating alcoholic liver injury.

This invention discloses a cell membrane-targeted H2S two-photon fluorescent probe, its preparation method, and its applications. This probe not only possesses excellent optical properties such as near-infrared fluorescence emission at 650 nm, a large Stokes shift of 140 nm, and two-photon excitation characteristics, exhibiting advantages such as low excitation-emission light scattering, low tissue absorption, and strong penetration, but also demonstrates excellent analytical and detection performance. Its pyridinium and sulfonic acid groups prevent it from entering the cell interior, allowing it to adhere only to the cell membrane surface, thus endowing the probe with excellent cell membrane localization capabilities. The probe uses a 2,4-dinitrobenzenesulfonyl group as both the H2S recognition group and a fluorescence quencher. Because the 2,4-dinitrobenzenesulfonyl group is adjacent to the pyridinium group, it is located on the outer surface of the cell membrane, enabling two-photon fluorescence imaging of H2S released transmembrane from cells.

The application discloses an anti-hydrolysis functional additive, a preparation method thereof and application of the additive in a solid-state electrolyte. The preparation method comprises the following steps: adding fluorobenzenacetic acid and metal hydroxide into a mixed solution of ethanol and water, and heating, stirring and drying to obtain the anti-hydrolysis functional additive. The anti-hydrolysis functional additive prepared by the application has the characteristics of stability in air, and the additive can be oxidized and reduced into a film in a lithium metal battery, so that the interface compatibility of the positive / negative electrode and the solid-state electrolyte in the all-solid-state lithium metal battery can be greatly improved. When the functional additive is used in a polymer-based solid-state electrolyte, the assembled all-solid-state battery has double-interface stability and exhibits high rate capacity and good cycle performance.

This invention provides a method for preparing and applying a multifunctional targeted nanomaterial for the treatment of various cancers. By modifying the surface of polycyclodextrin with a biotin receptor-targeting derivative and mixing it with a Golgi-targeting photosensitizer and a PD-L1 in situ inhibitor, the constructed novel multifunctional targeted nanomaterial can precisely target and recognize various tumor cells, increase the accumulation of photosensitizers at tumor sites, and further achieve accumulation in the Golgi apparatus, significantly disrupting its structure and function. Furthermore, this nano-drug delivery system can effectively downregulate PD-L1, further enhancing the photodynamic synergistic immunotherapy effect against tumors. The novel multifunctional targeted nano-drug delivery system prepared by this invention solves the problems of poor targeting and biosolubility of traditional photosensitizers, limited immune response capacity, and limited therapeutic effects, providing an innovative strategy for achieving targeted photodynamic synergistic immunotherapy for cancer.