33results about How to "Uniform specific surface area" patented technology

The invention relates to a zinc oxide medium and high temperature coal gas fine desulfurizer and a preparation method, belonging to the technical field of the preparation and the application of desulfurizers, in particular to the preparation and the application of zinc oxide medium and high temperature coal gas fine desulfurizers. The zinc oxide medium and high temperature coal gas fine desulfurizer is characterized by having wide sources and high price and can finely remove sulfureted hydrogen at medium and high temperature (300-550 DEG C) in the strongly reducing atmosphere. The active ingredients of the desulfurizer are uniformly distributed on a carrier surface and have the particle diameter of 10-400 nm. In the preparation method, the two steps of semicoke carrier modification and the active ingredient dipping are combined into one step, the two functions for improving the carrier hole structure and loading the components can be synchronously finished in an autoclave. The semicoke has wide sources, high price and simple preparation technique; the prepared desulfurizer can finely remove sulfureted hydrogen at medium and high temperature in the strongly reducing atmosphere, hasbetter thermal stability, and can be widely used in the field of desulfurizing and purifying the reducing chemical virgin gas which is prepared by using coal as materials.

The invention relates to a high-activity TiO2 nanometer pipe/ intermediate phase carbon microsphere composite material and a preparation method and application thereof. The high-activity TiO2 nanometer pipe/ intermediate phase carbon microsphere composite is obtained by depositing TiO2 nanometer pipes on surfaces of intermediate phase carbon microspheres performed with alkali activating treatment in a hydrothermal method. The obtained high-activity TiO2 nanometer pipe/ intermediate phase carbon microsphere composite has large specific surface area and strong adsorption/ desorption performance, is used as electrode materials of a super capacitor, remarkably improves the specific surface area, utilization rate, specific capacitance and conducting performance of electrode materials in aqueous electrolyte and organic electrolyte and prolongs service life of the super capacitor. Further the preparation method of the high-activity TiO2 nanometer pipe/ intermediate phase carbon microsphere composite has the advantages of being easy in process, low in manufacture cost and the like, and raw materials are low in price.

The invention discloses a composite base fertilizer for grapes. The composite base fertilizer comprises the following raw materials in parts by weight: 50-70 parts of fermented chicken manure, 14-22 parts of edible mushroom dregs, 20-26 parts of biogas digester dregs, 14-22 parts of fishbone dust, 16-24 parts of sunflower seed meal, 10-20 parts of monopotassium phosphate, 25-40 parts of ammonium nitrate, 20-28 parts of potassium fulvic acid, 20-40 parts of a kiln dust potassium fertilizer, 4-8 parts of carbonized coconut shell powder, 3-7 parts of sepiolite powder, 4-8 parts of kieselguhr, 1.5-2.5 parts of seashell powder, 4-8 parts of modified illite-montmorillonoid clay, 1-2 parts of fulvic acid diamine iron, 2-3 parts of fulvic acid manganese, 4-6 parts of traditional Chinese herbal medicine additives and 0.1-0.2 part of compound bacteria. The composite base fertilizer is balanced in nutrition and focuses on the mixing ratio of nitrogen, phosphorus and potassium, grapes can take nutrient components rapidly and sufficiently in different growth periods, normal growth of roots, leaves, flowers, fruits and the like of the grapes can be ensured, the yield of the grapes can be increased, the quality of the grapes can be improved, and the yield and the income can be increased.

The invention belongs to the field of antioxygen, in particular to an emulsion antioxygen and a preparation method thereof. The emulsion antioxygen is emulsified and compounded by the following raw material reagents at the proportion: main antioxygen, auxiliary antioxygen, emulsifying agent, dispersing agent and defoaming agent. The emulsion antioxygen has better oxidation resistance than other similar antioxygens and can achieve the optimal oxidation resistance effect, and the total solid content of the emulsion antioxygen is more than 52%. The emulsion antioxygen has the advantages of good oxidation resistance effect, big activity, low volatility, high durability, no pollution and the like and is especially suitable for protecting tint and pollution-free color polymer thereof. The emulsion antioxygen can be favorably dispersed in ABS (Acrylonitrile Butadiene StyreneAcrylonitrile Butadiene Styre) rubber latex, is ideal antioxygen used preparing ABS by emulsion polymerization and has excellent dispersibility. According to the emulsion antioxygen, the heating oxygen aging time of the ABS resin can be prolonged in the ABS production, the oxidation inducing temperature of the ABS resin is improved, the phenomenon that the ABS resin becomes yellows in the production and processing process thereof can be prevented, the strength of a product can be improved, and the oxidation resistance problem for preparing ABS by emulsion polymerization can be solved.

The invention discloses a molecularly-imprinted nanoparticle for glycoprotein and a synthesis method thereof, belongs to the field of analytical chemistry, and relates to synthesis of molecularly-imprinted polymers. The synthesis method comprises the following steps: firstly, preparing a solution phase A from template glycoprotein molecules, preparing a solution phase B from a functional monomer and a cross-linking agent, and preparing solution phase C from an initiator; secondly, respectively fixing the solution phase A, the solution phase B and the solution phase C on three micro-fluidic injection pumps with adjustable flow rates, connecting and mixing the solution phase A and the solution phase B through a Y-shaped three-way valve, connecting and mixing the mixed solution and the solution phase C through another Y-shaped three-way valve, and enabling the obtained mixed solution and the solution phase C to flow into a reactor for a polymerization reaction; and finally, collecting a polymerized nanoparticle at the tail end of the reactor, and removing the glycoprotein template molecules to obtain the molecularly-imprinted nanoparticle for glycoprotein. The molecularly-imprinted nanoparticle for glycoprotein is prepared in a microfluidic mode, operation is easy, continuous production can be achieved, and the obtained molecularly-imprinted nanoparticle can be used for specific recognition of target glycoprotein molecules.

The invention discloses an aqueous-phase preparation method of bismuth sulfide/protein composite nanospheres. Mannitol is used as ligand, and the bismuth sulfide/protein composite nanospheres are prepared for the first time in an aqueous phase under room temperature condition. The prepared bismuth sulfide/protein composite nanospheres have characteristics of porous structure, large specific area, uniform shape, controllable size, low biological toxicity and the like, can be used as a biological medical probe and have potential application prospect in the medical imaging aspect such as CT. The method is simple in devices, moderate in condition, low in energy consumption, short in preparation period, easy to realize and is an ideal method for preparing a bismuth sulfide/protein composite nano material.

The invention belongs to the field of environment-friendly materials, and particularly relates to adsorption type bone apatite and a preparation method and application thereof. The preparation methodcomprises the following steps: removing organic matters in animal bones; calcining the animal bones without the organic matters to obtain bone apatite; and carrying out surface chemical modification on the bone apatite by adopting a phosphoric acid solution to obtain the adsorption type bone apatite. The adsorption type bone apatite can be used for adsorbing heavy metal ions in industrial sewage,and the specific surface area of the adsorption type bone apatite is increased from 47.832 (m<2>/g) to 131.566 (m<2>/g) compared with the specific surface area of the adsorption type bone apatite before modification; when the initial concentration of Pb<2> is 200 mg/L, a removal rate can reach 98.3%; for Zn<2> and Cu<2> ions with an initial concentration of 200 mg/L, the removal rate of the ions can reach 70% or above; so the adsorption type bone apatite has good heavy metal ion removal capacity. The technical problem that bone apatite in the prior art is not high enough in adsorption capacityis solved.

The invention discloses a preparation method of TNT magnetic molecularly imprinted polymer microspheres. The method comprises the steps of: firstly adopting 3-aminopropyltriethoxysilane to perform amination modification on surfaces of Fe3O4 nanoparticles, then dispersing the aminated Fe3O4 nanoparticles in acetonitrile, adding a template molecule TNT and functional monomer acrylamide, performing prepolymerization, adding a cross-linking agent ethylene glycol dimethacrylate and an initiator azobisisobutyronitrile so as to prepare magnetically imprinted polymer microspheres, and finally performing elution treatment on the microspheres to obtain the TNT magnetic molecularly imprinted polymer microspheres. By combining technologies of molecular imprinting with magnetic separation, the preparedpolymer particles have a uniform shape and uniform size, the specific surface area of the TNT molecularly imprinted polymer microspheres is increased, and good adsorption and separation performance are achieved, wherein the adsorption amount is about 2.6 times that of a traditional embedding method, the separation time is about 1/5 of that of the embedding method, and specific adsorption of TNT is achieved.

The invention relates to a method for detecting amaranth in food by using porous graphene, belonging to the field of analytical chemistry or food safety. According to the invention, porous graphene is prepared by using a metal etching method; dispersion liquid of porous graphene is dispensed on the surface of a glassy carbon electrode so as to prepare a porous graphene modified glassy carbon electrode; and since porous graphene has a large specific surface area, high conductivity, strong adsorption capability and good mass transfer effect, the porous graphene modified glassy carbon electrode is used for detecting amaranth in food in experiments. The detection method provided by the invention has the advantages of high sensitivity, low detection limit, easiness and accurate results.

The invention discloses a crude benzene hydrorefining catalyst and a preparation method thereof. The catalyst consists of a pre-hydrogenization catalyst and a main hydrogenization catalyst, wherein the pre-hydrogenization catalyst is obtained by performing surface modification on active aluminum oxide serving as a carrier by adding rare elements, then soaking the active aluminum oxide in a molybdenum and nickel solution and performing activation; the main hydrogenization catalyst is obtained by performing surface modification on active aluminum oxide and titanium dioxide which serve as carriers by adding rare elements, then soaking the carriers in a molybdenum and cobalt solution and performing activation. By the adding of phosphoric acid and rare earth metal, the catalyst disclosed by the invention is beneficial for dispersion of molybdenum serving as an active component, and the specific surface area is relatively large and uniform; the number of active points is increased; moreover, by the adding of the rare elements, the poisoning performance and the carbon deposition resistance of the catalyst are enhanced; by virtue of the preparation of the catalyst carriers and the adding of the titanium dioxide and the rare earth material, the use temperature range of the catalyst is enlarged, and the defect that the use temperature range of an existing catalyst is relatively small is effectively overcome.

The invention discloses a high-impact transparent permanent antistatic polypropylene composite material and a preparation method thereof. The high-impact transparent permanent antistatic polypropylenecomposite material comprises the following raw materials: polypropylene, functionalized ethylene propylene rubber, a transparent agent, an antioxidant and a nucleating agent. The polypropylene composite material prepared by melting, mixing and granulating the raw materials has the advantages of high impact resistance, excellent transparency, permanent static resistance and the like, can be applied to the fields of light diffusion LED illumination, food packaging, daily article packaging and the like, and is particularly applicable as a raw material for the packaging industry of direct injection molding and the like.

The invention discloses a modified soft carbon negative electrode material, a lithium ion battery, a negative electrode material and a preparation method. The preparation method of the modified soft carbon negative electrode material comprises the steps of sequentially carrying out activation treatment, washing, drying and heat treatment on a soft carbon carbonization precursor material, wherein the soft carbon carbonization precursor material is obtained by carbonizing a soft carbon precursor material at the temperature of 1250-1450 DEG C; the mass ratio of the soft carbon carbonization precursor material to an activating agent in the activating treatment process is 100: (3-15); the activating agent is an alkali metal-containing alkaline inorganic compound and/or chlorine-containing inorganic salt; and the temperature of the heat treatment is 500-700 DEG C. According to the modified soft carbon negative electrode material disclosed by the invention, the structure of the soft carbon isimproved, the amorphous degree of the soft carbon structure is improved, pore lithium storage sites of the soft carbon material are increased, lithium intercalation and deintercalation channels are increased, and the obtained modified soft carbon negative electrode material is high in initial reversible capacity, initial coulombic efficiency and capacity retention ratio after 100 cycles.

The invention discloses a method for simultaneously preparing iron phosphate (FePO4) with a micro-nano porous structure and 5-hydroxymethylfurfural (5-HMF), and an obtained material and application thereof. The method comprises the following steps: with deionized water and ethanol as solvents, a ferric iron salt and a phosphate radical-containing compound as raw materials and carbohydrate as a morphology guiding agent and a surfactant, conducting uniform mixing, performing one-step reduction by adopting a hydrothermal reaction method, filtering a product to obtain a liquid 5-HMF, and washing and drying a solid to obtain the iron phosphate with the micro-nano porous structure. Compared with a traditional preparation method, the method is simple, rapid and green to operate, the prepared ironphosphate with the micro-nano porous structure is uniform in morphology and has the micro-nano porous structure, and large-scale production can be achieved. The iron phosphate with the micro-nano porous structure prepared by the method has the advantages of porosity, large specific surface area and the like, has excellent electrochemical performance and can be applied to a positive electrode material of lithium ion battery. The liquid obtained by the reaction is 5-HMF with high purity, and can be used as a biological energy material.

The invention discloses an amorphous carbon material, a preparation method thereof, a negative electrode material and a lithium ion battery. The preparation method includes the following steps: mixinga biomass material with conductive carbon black to obtain a mixture; heat-treating the mixture; and carbonizing the heat-treated mixture in an inert atmosphere, and grinding the carbonized product toobtain the amorphous carbon material. The preparation method provided by the embodiment of the present invention allows the spherical amorphous carbon material to be prepared, so the specific surfacearea of the amorphous carbon material is reduced, the mechanical properties and electrochemical properties of the amorphous carbon material are improved, and the energy crisis and environmental issues are effectively alleviated; and the preparation method of the amorphous carbon material has the advantages of simplicity, low device requirements and low preparation cost, so the amorphous carbonmaterial can be easily industrially produced and applied.