628results about How to "Suitable for mass manufacturing" patented technology

The invention discloses a compound metal oxide water oxidation catalyst and a preparation method thereof adopting an electrostatic spinning technology, and belongs to the technical field of electrocatalyst synthesis. The preparation method of the compound metal oxide water oxidation catalyst comprises the steps of preparing a nanometer fiber precursor by using an electrostatic spinning technology, and performing calcination processing on the preparing nanometer fiber precursor, so as to obtain an amorphous compound metal oxide nano-fiber, wherein the molar ratio of indispensable metallic elements to auxiliary metallic elements is 2:(1-10), and the indispensable metallic elements and the auxiliary metallic elements are not the same; the indispensable metallic elements are iron, cobalt, nickel or manganese, and the auxiliary metallic elements are iron, cobalt, nickel, manganese, copper, zinc, calcium, magnesium, barium, strontium, lanthanum, chromium, molybdenum, gallium or cerium; the catalyst has excellent electrocatalysis water oxidation activity in a strong alkaline solution with the pH value of 14, is equivalent to a noble metal IrOx / C in catalytic property, and has stable catalytic activity. The electrostatic spinning technology adopted by the invention is simple, convenient, feasible, low in price, efficient, excellent in controllability and repeatability, and suitable for larger-scale preparation.

The invention discloses a graphene-latex functional high-strength protection glove and a production method thereof. The method comprises the following steps: (1) immersing a glove blank in a coagulating agent, immersing the glove blank in a graphene-latex composite liquid, and drying the immersed glove blank to obtain the glove; or (2) immersing the glove blank in the coagulating agent, drying the immersed glove blank, immersing the dried glove blank in the graphene-latex composite liquid, leaching the immersed glove blank, crimping the leached glove blank, drying the crimped glove blank, vulcanizing the dried glove blank, leaching the vulcanized glove blank, and drying the leached glove blank to obtain the glove. Compared with gloves in the prior art, the graphene-latex functional high-strength protection glove produced in the invention fully performs the advantages of high electricity conductivity, high strength, friction resistance and strong bacteriostasis of graphene, and has wide uses in the fields of the manufacturing industry, the medical industry, the chemical engineering industry and the space flight and aviation industry.

The invention relates to a preparation method of a graphene-based surface strain sensor. The method comprises the following steps: (1), preparing graphene oxide dispersion liquid; (2), spraying the graphene oxide dispersion liquid on a substrate to form a thin graphene oxide film; (3), carrying out chemical reduction or ultraviolet irradiation on the thin graphene oxide film to form a thin graphene film; (4), connecting two copper electrodes to the two ends of the thin graphene film by conducting resins and connecting an ohm gauge between the two electrodes; and (5), spraying or brushing a high molecular solution on the thin graphene film continuously to form a high-molecular latex film. Compared with the prior art, the thin graphene oxide film is prepared by spraying; reduction is carried out by using a certain means; and then the graphene-based surface strain sensor is prepared. Because the operation is simple, the cost is low, and large-scale preparation can be realized well, the preparation method can be applied to the heath monitoring of the building structure.

The invention discloses a modified graphite phase carbon nitride photocatalyst as well as a preparation method and application thereof. The modified graphite phase carbon nitride photocatalyst is prepared from urea and salicylic acid serving as raw materials by virtue of calcination, wherein a mass ratio of urea to salicylic acid is 1:(0.002-0.02). The modified graphite phase carbon nitride photocatalyst disclosed by the invention has the advantages of being high in specific surface area, wide in light absorption range, low in electron-hole pair recombination rate, excellent in photocatalyticperformance and the like, and has multiple reactive sites, excellent application value and application prospects. The preparation method has the advantages of being simple in process, wide in raw material source, low in cost, high in preparation efficiency, high in yield and the like, is suitable for large-scale preparation and is favorable for industrial production. The modified graphite phase carbon nitride photocatalyst disclosed by the invention can be used for degrading organic pollutants, has the advantages of being simple in process, convenient to operate, low in cost, high in treatmentefficiency, excellent in degradation effect and the like, and has excellent effects of degrading the various organic pollutants.

The invention discloses a manufacture method of circuit board slot bottom graphics. The method comprises the following steps: preparation before plate pressing, slotting, gasket laying, plate pressing and hole drilling, electroplating, adhesive tape adhering and dry film slot sealing treatment, electroplating of protection tin layer, etching of slot wall, adhesive tape tearing, and manufacture of graphics in slot. According to the method, a single side of the slot bottom is bonded through an antielectroplating adhesive tape after step slot electroplating, a protection drying film is manufactured, the opening of the step slot is completely sealed, then a protection tin layer is electroplated, etching is performed after stripping of the film, non metallization of the slot wall is realized, and graphics at the slot bottom are manufactured after the adhesive tape at the slot bottom is torn. The method is good in matching ability with the conventional flow, manufacture of exquisite graphics can be performed, meanwhile through holes can be manufactured in the slot bottom, special protection materials and special technical processes are not required, the method is suitable for large-scale manufacture, and the manufacture effect is good. No design limits exist for external layer graphics, and the method is suitable for batch manufacture of side wall non metallization step slot graphic panels.

The invention discloses a surface modified nano ferroferric oxide Fenton catalyst and a preparation method thereof. The preparation method of the surface modified nano ferroferric oxide Fenton catalyst comprises the following steps: firstly preparing high dispersibility nano ferroferric oxide by adopting a coprecipitation method, and then carrying out surface modification on the nano ferroferric oxide by adopting a hydrolysis method. Organic acid salt and a non-ionic surface active agent are added when the coprecipitation method is adopted for preparing ferroferric oxide particles, so that the quantity of inorganic matters deposited on the surfaces of the ferroferric oxide particles is low, enrichment of reaction substrate and charge transfer on the surfaces of the ferroferric oxide particles can be enhanced, good catalytic efficiency can be realized at room temperature in a larger pH range, and the surface modified nano ferroferric oxide Fenton catalyst can be used for advanced oxidation treatment of dye sewage, organic pollutant sewage, pesticide sewage and the like. Therefore, the preparation method of the surface modified nano ferroferric oxide Fenton catalyst has the characteristics of simplicity in operation, mild conditions, adaptability to large-scale preparation and the like, cost for obtaining the product is low, and the obtained product can be widely and more easily popularized.

The invention belongs to the technical field of epoxy resin based chemical crosslinking material preparation, and particularly relates to a diamine addition crosslinking agent and a preparation method thereof, as well as a composition for preparing thermal reversible crosslinking epoxy resin and a composite material of the thermal reversible crosslinking epoxy resin. The structure of the diamine addition crosslinking agent is as shown in the formula (I), wherein R1 is methyl or H, and n is 1-3; and R is non-aromatic radical. The epoxy resin and the composite material prepared from the composition containing the crosslinking agent have all excellent performance of traditional chemical crosslinking epoxy resin at a low temperature, have re-processing forming performance of thermoplastic materials at a high temperature, restore crosslinking characteristics after being cooled, and are called 'thermosetting-thermoplastic' materials. The reversible crosslinking epoxy resin and the composite material thereof have a self-recovery capability, and the performance of the re-processing forming material can be regulated by means of thermal treatment, so that the diamine addition crosslinking agent is applicable to preparation of self-restoring paint, electronic packaging materials, thermal reversible adhesives and the like.

The invention belongs to the field of nano magnetic composite material preparation, and discloses a MXene-magnetic metal composite material and a preparation method thereof. The MXene-magnetic metal composite material is composed of flake MXene and magnetic metal nanoparticles uniformly loaded on the MXene. The preparation method comprises the steps of: dispersing the Mxene in a mixed liquid consisting of ethylene glycol and water, adding a magnetic metal salt into the mixed liquid and stirring the mixture, then adding NaOH into the mixture to adjust a system pH value to 8-14, then adding hydrazine hydrate into the mixture, and stirring the mixture evenly; heating the mixture to 60-120 DEG C and keeping the temperature for 0.2 to 8 h; cooling, separating, washing and drying the mixture toobtain the MXene-magnetic metal composite material. The preparation method adopts the ethylene glycol and water as a solvent and the MXene as a carrier, the magnetic cations are adsorbed on the surface of the MXene selectively and heated at the temperature of 60-120 DEG C, the magnetic cations are gradually reduced to magnetic nanoparticles under the common reducing action of hydrazine hydrate andethylene glycol, and the final prepared MXene-magnetic metal composite material integrates the properties of the MXene and magnetic metal.

The invention relates to the field of synthesis of drug intermediates, in particular to an intermediate of antitumor drug GDC-0449 (vismodegib) and a synthesis method of the intermediate. The synthesis method is characterized by comprising the following steps: with parachlorobenzoic-acid as a raw material, firstly carrying out iodination and then carrying out a rearrangement reaction under the action of diphenylphosphoryl azide; reacting with coupled boronic acid pinacol ester; and finally carrying out coupling reaction with 2-bromopyridine; and removing protecting groups to finally obtain the intermediate of GDC-0449. The preparation method provided by the invention has the following advantages: the raw material is cheap, the reaction conditions are moderate, the yield of each reaction is high, and the total yield is high up to 54.7%; and therefore the preparation method is suitable for large-scale preparation.

The invention discloses graphene-latex functional high-strength protective gloves and a preparation method thereof. The gloves are repeatedly usable graphene-latex protective gloves or disposable graphene-latex gloves. When the gloves are repeatedly usable graphene-latex protective gloves, the preparation method includes: dipping a glove blank in a coagulating agent and then in a graphene-latex compound liquid, and then performing drying; and when the gloves are disposable graphene-latex gloves, the preparation method includes: dipping a glove mold in a coagulating agent, performing drying, then conducting dipping in a graphene-latex compound liquid, and then carrying out edge curling, vulcanization and cooling. Compared with the prior art, the graphene-latex protective gloves prepared by the method provided by the invention give full play to the advantages of high conductivity, high strength, friction resistance, strong bacteriostasis and the like of graphene, and accordingly have wider application in manufacturing industry, medical industry, chemical industry, aerospace industry and other fields.

The invention belongs to the technical field of material preparation and photocatalysis, and discloses a high-activity graphite-phase carbon nitride material and a preparation method thereof. The preparation method comprises the following steps: forming a self-generated gas atmosphere a gas generated from a precursor by pyrolysis in the high-temperature calcining process under the control on an inert gas, and guiding synthesis of a carbon nitride material, thereby obtaining a flaky porous graphite-phase carbon nitride material. According to the preparation method, after the inert gas is not introduced any longer, a self-generated gas generated from the precursor is relatively uniform at different parts, and the carbon nitride material prepared with the preparation method is uniform in morphology and relatively good in crystal form; due to the escape of the self-generated gas, the material is effectively pored, and thus the specific surface area and the active sites of the material are increased; due to the self-generated gas atmosphere, the polymerization degree of the precursor is reduced, and the obtained carbon nitride material has a relatively large amount of unpolymerized amino or imino groups. The preparation method disclosed by the invention is simple, efficient and low in cost, and the carbon nitride material prepared with the preparation method is excellent in photocatalysis activity and very good in practicability.

The invention relates to a super-dispersion non-noble metal nitrogen-doped MOF double-effect electrocatalyst and a preparation method thereof. The preparation method comprises the following steps of 1) adding a hydroxyl-rich carbon source organic matter and a nitrogen-rich organic matter into a surfactant dispersed solution, and carrying out stirring and mixing; and enabling the carbon-nitrogen source organic matters to be reacted in the solution to obtain a primary precursor; 2) adding a transition metal solution, stirring at a constant temperature and sufficiently chelating with the organicprecursor; 3) putting the object obtained in the step 2) into a high-temperature kettle to carry out hydrothermal crystallization to promote crystals to grow slowly; 4) carrying out centrifuging, washing and drying on the object obtained in the step 3); and 5) carrying out high-temperature carbonization on the object obtained in the step 4) to obtain the catalyst. The catalyst has the advantages that the uniformly dispersed ultrafine metal nanoparticles are embedded and wrapped in a carbon shell, and the carbon layer structure is activated; and the catalyst has rich transition metals and nitrogen-bonded M-N chelating active sites, so that the catalyst stably exists in an acid solution, and has important application value and significance in the fields of fuel cells, water electrolysis andother electro-catalysis.

The invention relates to an oxygen evolution reaction electrocatalyst of a Ruddlesden-Popper layered perovskite-type oxide, the structure general formula of the oxygen evolution reaction electrocatalyst is A3B2O<7-Delta>, wherein A is one or more of rare earth metal ions or alkaline earth metal ions, b is one or more of transition metal ions, 0 is less than or equal to Delta, Delta is less than orequal to 1. The oxygen evolution reaction electrocatalyst disclosed by the invention has excellent oxygen evolution reaction (OER) catalytic performance in an alkaline solution, the activity is superior to those of commercial noble metal oxide RuO2 catalysts. The preparation method of the catalyst is simple to operate and easy for large-scale production, and the catalyst can be widely applied toelectrolysis water, metal-air battery and other energy storage and conversion technologies related to oxygen evolution reaction and has relatively high practical value.

The invention discloses a photoelectrochemical adaptor sensor as well as a preparation method and application thereof. The photoelectrochemical adaptor sensor comprises a conductive glass electrode, wherein the reacting end surface of the conductive glass electrode is modified with a composite membrane consisting of phosphorus hybridization graphite phase carbon nitride nanosheets loading gold nanoparticles; and a specific adaptor probe is self-assembled on the surface of the membrane. The preparation method of the photoelectrochemical adaptor sensor comprises the following step: modifying thephosphorus hybridization graphite phase carbon nitride nanosheets loading the gold nanoparticles and the specific adaptor probe on the reacting end surface of the conductive glass electrode. The sensor disclosed by the invention has the advantages of high stability, long service life, high anti-jamming capability, wide detection range, low detection limit and the like. The preparation method of the photoelectrochemical adaptor sensor has the advantages of simple technology, convenient operation, safety, low cost, no pollution, high production efficiency and the like. The sensor disclosed by the invention can be widely applied to detecting pollutants (such as antibiotics) in mediums such as a water body and a living body and has the advantages of high utilization rate, wide application range, high application value and the like.

The invention provides a respiratory-tract magnetic-resonance spray contrast agent, which is a gadolinium-lipid compound formed from a gadolinium contrast agent and a lipid, wherein the average diameter of the compound is less than 1,000 nm, and the mean value of the Zeta potential of the compound is more than 40 mv. The lipid component is selected from at least one or combination of phospholipids, glycolipids, sterol, cationic lipids, surfactant, amphiphilic polymers, and at least contains a positive-charge lipid component. The invention also provides a method for preparing the respiratory-tract magnetic-resonance spray contrast agent. After the contrast agent is atomized and inhaled, gadolinium is effectively distributed on the surface of far-end respiratory-tract mucosa by utilizing theelectrostatic interaction between positive charges carried by the compound and negative charges on the surface of the respiratory-tract mucosa, and the distribution uniformity of spray drips on the surface of the mucosa by means of the action of the surface activity of the lipid, so that the problem that the gadolinium is only distributed on near-end respiratory tracts, is easy to gather and flows to the lower parts of the respiratory tracts after gadolinium aqueous solution is sprayed is solved, and the surface of the whole respiratory-tract mucosa is completely and clearly shown.

The invention discloses a thin-film solar cell based on an inorganic planar hetero-junction and a preparation method thereof. The solar cell comprises a glass substrate, an FTO layer as the anode, a planar hetero-junction photoactive layer composed of a TiO2 nano-structure compacted thin film and a Sb2S3 mono-crystal bulk single-layer compacted thin film, a polymer PCPDTBT electron blocking layer, a composite hole transport layer composed of PEDOT: PSS and Spiro-MeOTAD, and an Au film layer as the cathode of the solar cell. The inorganic planar hetero-junction thin-film solar cell disclosed by the invention has a spectral response range of 300-750nm. When the photoactive layer of the whole cell is under light, the conversion efficiency of the cell is up to 9.11%. The key photoactive layer material of the solar cell as well as the materials of the electron blocking layer, a hole blocking layer and a buffer layer are prepared through a simple solution method. Therefore, the solar cell has great potential for large-scale industrialization.

The invention discloses a preparation method of a silver nanowire with a high length-diameter ratio. The preparation method comprises the following steps that a surfactant is taken and dissolved in an organic solvent to obtain a solution A; a silver salt precursor is taken and dissolved in an organic solvent to obtain a solution B; the solution A and the solution B are mixed and react in a supergravity reactor, and a dispersion liquid C containing a silver halide nanocrystal nucleus is generated; and the dispersion liquid C is conveyed into a kettle type reactor, and finally the silver nanowire is prepared through an alcohol thermal reduction method. According to the method, the supergravity technology is adopted in the nucleation and growth processes of crystal nucleus, and the silver halide crystal nucleus with small particle diameter and uniform particle size can be prepared; and the preparation method has the following advantages that (1) the prepared silver nanowire is small in diameter, large in length-diameter ratio and uniform in length; (2) no silver nanoparticles exist in the product, and the silver nanowire does not need to be obtained by separation; and (3) the method is high in yield and suitable for large-scale preparation of the silver nanowire.

The invention discloses conductive aerogel and a preparation method thereof. Coaxial composite micro-nanofibers are adopted as fibers for preparing the aerogel, an insulated macromolecular micro-nanofiber prepared through electrostatic spinning serves as the axis of the coaxial composite micro-nanofibers, and the outer surface of the insulated macromolecular micro-nanofiber is coated with a conductive layer through an in-situ polymerization reaction of a conductive polymer material. The conductive aerogel has the good conductivity, the preparation method of the aerogel is simple, has the universality and is suitable for large-scale preparation, and the types of the conductive aerogel can be greatly increased through the preparation method.

The invention discloses nanometer vanadyl phosphate as well as a preparation method and application thereof. The beta-phase nanometer vanadyl phosphate is of a granular hollow structure; the particle diameter of nanometer vanadyl phosphate is 10-30nm; and the wall thickness of nanometer vanadyl phosphate is 1-5nm. The preparation method disclosed by the invention comprises the steps of: placing a vanadium source and a phosphorus source in a metal atom molar ratio of 1:1 in a pressure vessel, adding a solvent and uniformly mixing, heating to 120-280 DEG C after sealing to carry out solvent thermal reaction for 2-240 hours, filtering, washing and vacuum drying the product to obtain a vanadyl phosphate precursor; and calcining the precursor for 0.5-12 hours at a temperature of 400-900 DEG C, and cooling to room temperature to obtain nanometer vanadyl phosphate. The prepared nanometer vanadyl phosphate is small in size, uniform in particle diameter distribution, good in dispersity and large in specific surface area, simple in the preparation method and available in raw material. The nanometer vanadyl phosphate has very high catalytic activity and good reaction selectivity when being used for catalyzing ammoxidation of methyl aromatics to prepare aromatic nitrile, and reaction temperature is reduced compared with the vanadyl phosphate prepared by adopting a conventional method.

The invention particularly relates to a pure iron based surface Fe3O4 nano-column array and a preparation method thereof. The technical scheme of the invention is as follows: the method comprises the steps: carrying out anodic oxidation treatment on pure iron, which is subjected to surface pretreatment, in an ammonium fluoride-water-ethanediol system electrolyte; taking out, cleaning and drying through blowing; heating to the temperature of 400-800 DEG C from room temperature in a hydrogen atmosphere at the heating rate of 5-15 degrees centigrade per minute, carrying out heat preservation for 3-8 hours, and carrying out furnace cooling naturally, thereby preparing the pure iron based surface Fe3O4 nano-column array. The method is characterized in that in the ammonium fluoride-water-ethanediol system electrolyte, the mass percentage of ammonium fluoride is 0.2-0.5%, and the volume percentage of water is 1.5-3%; the anodic oxidation treatment is carried out under the conditions that the voltage is 20-60 voltage, the temperature is 20-60 DEG C and the time is 0.05-1 hour. The preparation method has the characteristics of simple process, environmental friendliness and low cost; the prepared pure iron based surface Fe3O4 nano-column array has the advantages that the structure is regular and orderly, the composition is uniform, the density of nano-columns is high, the specific surface area is large, the bonding with substrates is tight, and other impurity elements are not involved.

The invention discloses a polysilazane coating solution containing metallic elements and a method for preparing a high-transparency composite coating containing metallic oxide-SiO2. The polysilazane coating solution containing the metallic elements comprises polysilazane, a metallic compound, a solvent and a catalyst. The method for preparing the transparent composite coating containing the metallic oxide-SiO2 on the basis of the coating solution comprises the steps as follows: a substrate is coated with the coating solution; and high-temperature treatment is performed after low-temperature treatment and hydrolysis are performed for certain time. A mixture of one or more of SiO2 / TiO2, SiO2 / ZrO2, SiO2 / HrO2 and SiO2 / ZnO composite coatings can be prepared with the method. Compared with the prior art, the method is simpler, the application is wider, the surface of the coating layer is dense and even, the transparency is good, and the visible light transmittance is above 90%.

The invention discloses a self-luminous device, which comprises a first electrode layer, a second electrode layer, a luminous layer and an insulating layer, wherein the luminous layer is arranged between the first electrode layer and the second electrode layer; the insulating layer is arranged between the first electrode layer and the second electrode layer or outside the first electrode layer and the second electrode layer; at least one layer body in the insulating layer, the first electrode layer and the second electrode layer generates a high refractive index material and low refractive index material mixing structure through a temperature change and / or a pressure change, so that the luminous efficiency is improved. The invention further discloses a preparation method of the self-luminous device and a display device. According to the self-luminous device, the light emitted from the luminous layer can be refracted and / or scattered when passing through the high refractive index material and low refractive index material mixing structure; the light totally reflected on the interface is reduced; and the light transmittance is improved, so that the light extraction efficiency of the self-luminous device is effectively improved; meanwhile, processing and production are carried out by the temperature change and / or the pressure change; the production cost is low; and the self-luminous device is suitable for mass production.

The invention discloses a method for synchronously reducing and modifying graphene oxide, and particularly relates to a method for preparing graphene containing a large number of long carbon chains on the surface as well as polymerizable carbon-carbon double bonds and showing good dispersibility in an organic solvent through chemical reduction by taking the extraction liquid urushiol of the Chinese lacquer tree or the extraction liquid cardanol of cashew nut shell as a reducing agent and a modifying agent without adding any stabilizer or dispersant, which provides convenience to the follow-up preparation of a graphene-based polymer composite. The method disclosed by the invention is green and environment-friendly, simple in process, low in production cost and easy to popularize and use; the reaction process is easy to control; and particularly, the surface-modified unsaturated urushiol or cardanol with a long side carbon chain can be crosslinked or blended with most polymers, thereby being favorable for applying the modified graphene to the field of new materials such as high-molecular composites.

The invention discloses an extensile island-bridge structure preparation method based on an electric fluid spray printing technology. According to the method, firstly, a flexible substrate is prestreched, then, an electric fluid spray printing process is used for printing patterns on the substrate, according to the electric fluid spray sprinting process, a high voltage alternating current needs to be applied between a nozzle and the substrate, after an solution is sprayed from the nozzle, an island-bridge structure is directly deposited on the prestretched substrate by the solution, wherein the diameter range of an island is 10-200 micrometers, the width range of the bridge is 200-30 micrometers, then, substrate prestrain is released, island morphology is basically not changed, a microbridge is buckled by compression, and the extensile island-bridge structure is formed. The extensile island-bridge structure preparation method has the advantages of being simple in process, low in cost, capable of achieving large-area and array preparation and the like, and has a wide application prospect in the flexible / extensile electronic field.

The invention relates to an electrocatalyst with mixed precious metal and perovskite oxides. The electrocatalyst with mixed precious metal and perovskite oxides is characterized in that precious metal and perovskite oxides are mixed mechanically at different ratios so as to prepare an electrode, thereby obtaining the electrocatalyst with high ORR (oxygen reduction reaction) and OER (oxygen evolution reaction); the single precious metal is an excellent oxygen reduction catalyst, but the catalytic oxygen evolution reaction is relatively poor; the perovskite oxides have relatively high catalytic activity to the oxygen evolution reaction, and have very flow catalytic activity to the ORR. Aiming at the situation, the catalyst obtained by the invention has high ORR and OER activity at the same time only by a simple mixing method, and can act as a double-effect oxygen electrode for the fields of integrated recyclable fuel batteries, chargeable metal-air batteries, water electrolysis and the like.

The invention discloses a degradable plastic containing algae protein. The degradable plastic is prepared from the following major raw materials in parts by weight: 80-100 parts of microalgae protein powder, 0-20 parts of starch, 2-10 parts of modifier, 10-30 parts of plasticizer and 1-10 parts of surfactant; the various components are mixed in proportions, put into the plate mold of a press vulcanizer, and subjected to hot-pressing and cold-pressing processes, and finally, the degradable plastic containing the algae protein as the major component is obtained. The invention provides a treatment method for changing algae into things of value for the algae bloom burst period; as a result, the treatment method is advantageous for environmental protection.

The present invention discloses a method for simultaneously preparing hyperin and isorhammetin-3-O-galactoside control products. Said method includes the following steps: (1) placing Chinese medicinal material evodia in a container, adding solvent to make extraction with reflux; (2) filtering evodia extract, reduced pressure concentrating to obtain extractum, adding water to dissolve it, then successively using petroleum ether, chloroform and ethyl acetate to make extraction; (3). using column chromatographic process to purify the ethyl acetate extracted portion twice; and (4). combining chromatographic eluents, concentrating, recrystallizing so as to obtain the invented two control products of hyperin and isorhamnetin-3-O-galactoside. Said invention is simple, and can simultaneously prepare hyperin and isorhamnetin-3-O-galactoside pure products whose purity can be above 98%.

The invention discloses a nitrogen-doped carbon material modified silver phosphate composite photocatalyst, a preparation method and application thereof. The silver phosphate composite photocatalyst comprises a nitrogen-doped carbon material, and silver phosphate particles are loaded on the nitrogen-doped carbon material. The preparation method comprises the following steps: preparing the nitrogen-doped carbon material into a nitrogen-doped carbon material dispersion liquid, adding an Ag<+> solution to prepare a nitrogen-doped carbon material / Ag<+> dispersion liquid, and adding an HPO4<2-> solution to prepare the silver phosphate composite photocatalyst. The silver phosphate composite photocatalyst disclosed by the invention has the advantages of high photo-induced electron-hole pair separation efficiency, strong light corrosion resistance, strong photocatalytic activity and the like, is a novel efficient visible light photocatalyst, can be widely applied to removal of organic pollutants in the environment, and has very high use value and very good application prospect. The preparation method of the silver phosphate composite photocatalyst has the advantages of simple process, operation method, low cost, greenness, no pollution and the like, is suitable for large-scale preparation, and is beneficial to industrial application.

The invention discloses a preparation method of a positive electrode catalyst Mn2O3 of a lithium carbon dioxide battery. The method comprises the following steps of dissolving PVP into absolute ethylalcohol and then adding Mn(CH3COO)2.4H2O; carrying out magnetic stirring and reflux reaction at 40-80 DEG C to obtain a white precipitation product and carrying out vacuum drying to obtain a powdery precursor; and carrying out heat preservation in a tube furnace at 500-700 DEG C for 2-4h to obtain the positive electrode catalyst Mn2O3 of the lithium carbon dioxide battery. The positive electrode catalyst Mn2O3 of the lithium carbon dioxide battery is used for preparing a positive electrode of the lithium carbon dioxide battery. The materials are easy to obtain, and the method is simple in preparation process and technology, low in cost and friendly to environment.

The invention discloses a method for treating antibiotic wastewater by using a cobalt ion-doped metal organic framework material. The method comprises the following steps: mixing the cobalt ion-dopedmetal organic framework material and the antibiotic wastewater, and performing oscillating adsorption to complete treatment to the antibiotic wastewater, wherein the cobalt ion-doped metal organic framework material comprises cobalt ions and UiO-66(Zr), and the cobalt ions are doped in the UiO-66(Zr). By the method for treating the antibiotic wastewater by using the cobalt ion-doped metal organicframework material, a treatment technology is simple, operation is convenient, equipment is simple, the cost is low, the treatment efficiency is high, the removing effect is good, the repeated utilization rate is high, and cleanness and no pollution are achieved; the method is a treatment method which can be widely applied and by which antibiotics can be effectively removed, and has a very high application value and a very high commercial value.