48results about How to "Meet friendly request" patented technology

The invention relates to transition metal oxides, in particular to a method for manufacturing a nanoflower film based on a manganese cobalt oxide hierarchy structure. A water heating and high-temperature calcination synthetic method is adopted, a layer of a nanoflower film material composed of nanobands grows in situ on the surface of a foamed nickel sheet at the low temperature through a water heating method, the nanoflower film material is further calcinated, and therefore the metallic oxide film material of the nanoflower structure is obtained. By the adoption of the method, hexamine is used as an externally-added alkali source, the thickness and the size of nanoflowers can be adjusted and controlled, and the metallic hydroxide nanoflower film material is obtained; and through further calcination, the metallic oxide nanoflower film material which is regular in appearance and stable in structure and is of the hierarchy structure are obtained finally. By the adoption of the method, the experiment conditions are gentle and controllable, practicality is high and reproducibility is good.

The invention relates to a preparation method and applications of an aqueous reflective radiation type composite heat insulation paint. The aqueous reflective radiation type composite heat insulationpaint is of a double layer paint layer structure composed of a radiation thermal-insulation paint and a reflective thermal-insulation paint; the radiation thermal-insulation paint is sprayed onto a lower layer; the reflective thermal-insulation paint is sprayed onto an upper layer; the high radiation performance of convenience carbon nanotube and the reflective performance of rutile type titaniumdioxide are combined, reflective thermal insulation effect is achieved by the titanium dioxide at the upper layer; the radiation thermal insulation effect is achieved by the carbon nanotube at the bottom layer. Compared with simple blended single-layer structures, the double-layer structure possesses a following advantage: the reflective effect of rutile type titanium dioxide can be ensured effectively. The aqueous reflective radiation type composite heat insulation paint is low in VOC, is friendly to the environment. The aqueous reflective radiation type composite heat insulation paint possesses excellent reflective performance on visible light and near infrared light, is high in hemispherical emissivity, and excellent in thermal insulation effect, is green, and is friendly to the environment; the preparation method is simple and controllable; construction is convenient; and the aqueous reflective radiation type composite heat insulation paint can be applied on building exterior wallsand petroleum chemical storage tanks based on different requirements.

The invention relates to an environment-friendly rust removing and resisting agent applied to acid pickling. The rust removing and resisting agent is prepared from the following raw materials in percentage by mass: 17-35% of phosphorous acid, 1-8% of zinc dihydrogen phosphate, 1-8% of an oxidant, 1-10% of a complexing agent, 0.05-5% of a passivator, 0.01-2% of a surfactant, 0.01-2% of a corrosioninhibitor and the balance of water, wherein the oxidant is selected from one or two of cerous nitrate or zinc nitrate; the passivator is sodium molybdate; the corrosion inhibitor is selected from oneor two of rodine and benzotriazole; the surfactant is selected from JFC (fatty alcohol-polyoxyethylene ether) and OP-10 (alkylphenol polyethylene ether). Through the rust removing and resisting agent,the rust removing and resisting effect can be achieved by carrying out acid pickling under the normal temperature; a good galvanization effect can also be achieved after steel products are placed inthe air for a period of time after removing rust; meanwhile, the rust removing and resisting agent has the advantages of low production cost, simple operation process, no harm to operators and environment friendliness.

The invention relates to a preparation method of a graphene compounded/metal ion doped defective semiconductor photocatalyst, and relates to a preparation method of a photocatalytic functional material. With a ternary sulfide ZnIn2S4 as a reference, Ag<+>, a zinc source, an indium source, a sulfur source and oxidized graphene are subjected to a reaction under a hydrothermal condition according toa certain molar ratio in order to produce the target photocatalyst. The visible light photocatalyst is definite in structure and composition, and the visible light spectral response range of ZnIn2S4 can be obviously enhanced through doping of Ag <+>; after the graphene is compounded with the graphene, the diffusion range of photon-generated carriers can be increased, so that recombination of photo-generated electron-hole pairs is inhibited, and the visible light catalytic activity is enhanced. The product is a promising visible light photocatalytic material.

The invention provides a method for preparing a graphene/carbon nanotube/carbon nanofiber membrane ternary composite capacitive demineralization electrode. The method comprises the steps of adding polyacrylonitrile into a well-dispersed graphene oxide and carbon nanotube N,N-dimethylformamide solution, carrying out stirring at a certain temperature so as to prepare a spinning solution, then, preparing a composite film by using an electrostatic spinning technology, and carrying out high-temperature annealing and carbon dioxide activating, so as to obtain a graphene/carbon nanotube/carbon nanofiber membrane ternary composite film. The film obtained by the method can be directly used as the capacitive demineralization electrode. The method provided by the invention is simple, a binder is not required, the prepared electrode material has a flexible characteristic, the assembly is facilitated, and the requirements on environment-friendliness are met; the prepared ternary composite material has a unique microstructure and good electric conductivity, the demineralization performance can be effectively improved, and thus, the ternary composite material has a potential development prospect.

The invention relates to a preparing method for glyphosate and belongs to the technical field of chemical engineering. The preparing method specifically comprises the four steps of synthesis of iminodiacetic acid, preparation of pmida, preparation of glyphosate and solid and liquid separation. According to the preparing method, firstly, precious metal silver is loaded on titanium dioxide, the surface nature of titanium dioxide is influenced, electron distribution is changed, and catalytic activity is improved; then, titanium dioxide loaded with silver is loaded into activated carbon and irradiated with an ultraviolet source. The selectivity of glyphosate is greatly improved, the oxidization process of pmida is greatly shortened, the yield of glyphosate is increased to 96.3%, and the product purity can reach 97.6%; besides, the content of methyl aldehyde is low, fewer products are generated, and the requirement of the nation for environment friendliness is met.

The invention relates to an electrochemical aptamer sensor for detecting atrazine, and preparation and detection methods for the sensor, and overcomes the defects that an existing atrazine detection method is complex and high in cost, needs professional operators and the like. According to the electrochemical aptamer sensor, reduced graphene oxide is modified on the surface of a glassy carbon electrode to serve as a substrate electrode material, and nickel-iron cyanide complex nanoparticles are deposited on the surface of the electrode through an electrochemical deposition technology to serveas a signal probe; and gold nanoparticles are deposited on the surface of the electrode through electrochemical deposition, and an atrazine aptamer is fixed on the surface of the electrode through anAu-S key. The atrazine can be subjected to high-sensitivity analysis, and high selectivity can be obtained in a complex environment medium; the sensor has the advantages of being simple in instrumentequipment, low in analysis cost, fast in response and the like; and a new detection method can be provided for evaluating the residual components of the atrazine as a pesticide in the environment.

The invention discloses a silver ion doped zinc thioindate heterojunction photocatalyst preparation method, and relates to a catalyst preparation method, which comprises: carrying out a reaction on silver nitrate, zinc acetate, indium acetate, thioacetamide and indium oxide according to a certain ratio under an oil bath heating condition to obtain a target photocatalyst. According to the invention, the novel visible light photocatalyst is clear in structure and definite in composition; by doping with Ag<+>, the photon utilization rate of ZnIn2S4 can be remarkably increased; by compounding withIn2O3, the diffusion range of photon-generated carriers can be enlarged, the electron-hole pair is effectively separated, the recombination of photo-induced electron-hole pairs is inhibited, and theutilization rate of photo-induced electrons is greatly increased, so that the catalytic activity of visible light is enhanced; and the Ag:ZnIn2S4/In2O3 composite material has high visible light activity, good hydrogen production capacity and good photocatalytic stability, so that the Ag:ZnIn2S4/In2O3 composite material has wide prospect in the field of clean energy production and energy conversion, and is a catalyst with good development prospect.

The invention discloses a bi-dihydroxy ethylene urea, a plurality of derivatives thereof, a preparation method and an application thereof. The molecular structure of the compound comprises a plurality of hyperactive hydroxies which can perform dehydration and condensation cross-linking reaction with a plurality of polymers containing active hydrogen therein, thereby replacing traditional urea/formaldehyde resin, melamine/formaldehyde resin, dicyandiamide/formaldehyde resin, bird dropping amine/formaldehyde resin and the like containing nitrogen hydroxymethyl or nitrogen hydroxymethyl ether active functional groups therein. The bi-dihydroxy ethylene urea can be widely used as thermosetting crosslinking agent of various polymer resin coatings (such as acrylate resin, alkyd resin, polyurethane resin, phenolic resin and the like) containing active hydrogen, and used as anti-wrinkle finishing agent and waterproof finishing agent of cotton, flax, silk and other natural textile fibers. In the cross-linking curing use process, the invention only releases water rather than any harmful micromolecular compounds such as formaldehyde, methanol and the like, thus the invention belongs to a new environment-friendly species of chemical cross-linking agent.

The invention belongs to the technical field of agriculture, and relates to a novel environment-friendly medical fertilizer which comprises the following components in parts by weight: 50-80 parts of a macroelement fertilizer, 0.1-5 parts of a medium trace element fertilizer, 1-10 parts of monosultap, 0.1-5 parts of chlorantraniliprole and 10-20 parts of a kaolin natural polymer slow-release adhesive. The preparation method comprises the following steps: respectively crushing a macroelement fertilizer, a medium trace element fertilizer, monosultap and chlorantraniliprole according to set weight parts, and preparing a kaolin protein composite slow-release adhesive according to set weight parts; the fourth slow-release layer, the third slow-release layer, the second slow-release layer and the first slow-release layer are sequentially wrapped and dried to prepare a pesticide fertilizer finished product. The invention further provides application of the novel environment-friendly pesticide fertilizer in rice pest control. The kaolin natural polymer slow-release adhesive is used as the adhesive, so that the action time of the medical fertilizer can be prolonged, the utilization rate of the medical fertilizer is increased, and degradable natural components are adopted, so that the requirement of environmental friendliness is met.

The invention discloses a fibrous composite material and a preparation method thereof. The fibrous composite material is a three-dimensional multi-layer fabric which comprises an upper surface layer and a lower surface layer, wherein a middle layer formed by the connection of middle separating yarns is arranged between the upper surface layer and the lower surface layer and is filled with nanofiber. The preparation method comprises the step of filling the middle layer of the three-dimensional multi-layer fabric with nanofiber by virtue of an electrostatic spinning method or a biological method, so as to form the fibrous composite material. The fibrous composite material has strong force, is capable of resisting external tensile force and bearing a certain compression performance and has very good elastic return action, the structure is relatively strong, and the bonding is relatively firm. Furthermore, the nano-level fibrous composite material has relatively high porosity and high in filter efficiency. The preparation method is low in cost and and suitable for industrial production. The fibrous composite material can be further taken as a filling material and has a protection enhancing effect.

The invention discloses an antibacterial waterborne aluminum pigment and a preparation method thereof. The preparation method includes: A, washing the surface of aluminum powder, forming a passivatedwater-resistant layer on the surface of the aluminum powder, and forming an antibacterial layer on the surface of the aluminum powder; alternatively B, washing the surface of aluminum powder, and forming both a passivated water-resistant layer and an antibacterial layer on the surface of the aluminum powder. The preparation method specifically includes: (1) washing the surface of aluminum powder with organic solvent diluted phosphoric acid; (2) forming a passivated water-resistant layer on the surface of the aluminum powder through an inorganic salt or tetraethoxysilane; (3) forming an antibacterial layer through a quaternary ammonium salt silane coupling agent. The quaternary ammonium salt silane coupling agent utilized herein subjects the aluminum pigment to further covering modificationthrough hydrolysis; the quaternary ammonium salt terminal having antibacterial effect has good hydrophilicity; a carbon chain of suitable length enables the modified aluminum powder to be well compatible with water and gain certain water resistance; the waterborne aluminum pigment herein has good antibacterial property and water resistance.

The invention belongs to the technical field of nanometer materials, and concretely relates to a preparation method of a zinc stannate nanocube or a nanosheet material. The invention adopts a higher-temperature hydrothermal synthesis method so as to directly obtain a metal oxide material with the nanocube or a nanosheet structure. The preparation method comprises the steps of adopting sodium dodecyl benzene sulfonate as an external acidifying source, adopting tetraethylammonium hydroxide as an external alkalifying source, adjusting different hydrothermal times to adjust the size of the cube, adjusting the dosage of the sodium dodecyl benzene sulfonate to optimize the shape of the material, and finally obtaining the metallic oxide hierarchical-structure nanometer material with a regular shape and a stable structure. The method provided by the invention is mild and controllable in experiment conditions, high in practicability, and good in reproducibility.

The invention belongs to the technical field of preparation of metal oxide composite materials, relates to the preparation of a foamed-nickel-based composite material, and particularly relates to a foamed-nickel-based ZnCo2O4/ZnWO4 composite material synthesized according to a hydrothermal method and an application thereof. The process comprises the steps of dissolving zinc nitrate hexahydrate, cobalt nitrate hexahydrate, ammonium fluoride and urea, immersing foamed nickel into the solution, performing a hydrothermal reaction for 4-6h at a temperature of 110-130 DEG C, and calcining to obtainZnCo2O4 loaded on the foamed nickel; and then placing the foamed nickel loaded with ZnCo2O4 into a mixed solution of zinc nitrate hexahydrate, sodium tungstate dihydrate and ammonium fluoride, performing the hydrothermal reaction for 5-7h at a temperature of 160-200 DEG C, and calcining to obtain a ZnCo2O4/ZnWO4 composite material loaded on the foamed nickel. The foamed-nickel-based ZnCo2O4/ZnWO4composite material is simple in process, good in repeatability, the raw materials are low in price and low in toxicity, and the production cycle is short, so that the energy consumption and cost are reduced, and the large-scale production is facilitated. The prepared composite material shows excellent electrochemical performance and has high energy density and power density. The prepared foamed-nickel-based ZnCo2O4/ZnWO4 composite material is utilized to prepare an asymmetric supercapacitor which can still keep a specific capacity of 98.5% after being charged and discharged for 5000 times, thereby conforming the requirement of being environment-friendly.

The invention belongs to the technical field of photocatalysts and particularly relates to nonmetal co-doped thorn-shaped inlaid TiO2 hollow structures as well as a preparation method and an application thereof. A titanium source, alcohol and a nonmetal element dopant are added to a self-made ultrasonic integrated device, the solution is dispersed into uniform mist by an ultrasonic sprayer, the mist is slowly conveyed to an ultrasonic reactor to react under the action of inert gas, then, the mists passes through a microwave dryer, the nonmetal co-doped thorn-shaped inlaid TiO2 hollow structures, including thorn-shaped hollow spheres, thorn-shaped hollow boxes and symbiotic structures of thorn-shaped hollow spheres and hollow boxes, can be obtained by controlling the amount of alcohol and conditions of a reaction device, and these nonmetal co-doped thorn-shaped inlaid TiO2 hollow structure photocatalysts have better catalytic effects on degradation of organic pollutants and organic oxidation reactions.