20 results about "Copper(II) acetate" patented technology

A preparation method of a Cu-HHTP-PPy / stainless steel mesh oil-water separation membrane comprises the following steps: depositing polypyrrole on the surface of a stainless steel mesh to obtain a PPy / stainless steel mesh; pPy / stainless steel is subjected to plasma activating treatment and then placed in a copper acetate solution to be soaked, then the PPy / stainless steel is placed in HHTP, and the Cu-HHTP-PPy / stainless steel mesh separation membrane is obtained through electrochemical auxiliary soaking treatment. The Cu-HHTP-PPy / stainless steel mesh oil-water separation membrane prepared by the invention has super-hydrophilicity-underwater super-oleophobicity, also has electrothermal-photothermal properties, has an underwater oleophobic contact angle of 155 degrees, has efficient oil-water separation performance for different oils, has oil-water separation efficiency of 99% or more, also has relatively high permeation flux and excellent cycle stability, and can be applied to the field of oil-water separation. After circulation for more than 30 times, the oil-water separation efficiency still reaches more than 99%, and the permeation flux stably fluctuates in a relatively small range.

The application relates to the technical field of electrocatalysis, in particular to an Ag@AgCl / Cu2O double-shell structure nanowire catalyst, a preparation method thereof, an electrode and a preparation method thereof and application. The preparation method of the Ag@AgCl / Cu2O double-shell structure nanowire catalyst comprises the following steps: 1) uniformly mixing sodium chloride, ferric nitrate, polyvinylpyrrolidone and silver nitrate in ethylene glycol, reacting at 120-140 DEG C for 20-50 min, and obtaining a suspension; 2) uniformly mixing the suspension prepared in the step 1) with copper acetate and polyvinylpyrrolidone in ethylene glycol, then reacting at 120-140 DEG C, then uniformly mixing with copper chloride, and reacting at 120-140 DEG C, and then carrying out solid-liquid separation. The Ag@AgCl / Cu2O double-shell structure nanowire material prepared by the application can be widely used in the field of electrochemical energy storage devices for electro-reducing carbon dioxide.

This invention discloses a nitrogen-sulfur co-doped multi-chamber carbon-supported copper nanocluster composite material and its preparation method. By integrating polyether F127, 2,6-diaminopyridine, sodium dodecylbenzenesulfonate, fulvic acid, and copper acetate (II), a semi-open and surface-fully embedded copper cluster multi-chamber carbon was successfully constructed. The surface of this multi-chamber carbon is rich in -NH2 and -SO3. ‑ With abundant active groups, it not only boasts a large specific surface area and ample adsorption sites, but also exhibits excellent anti-interference and wide pH adaptability. As an environmentally friendly material, it can simultaneously and efficiently adsorb and remove Cu²⁺ from electroplating wastewater. + Ni² + Pb² + Cd² + It contains heavy metals and organic complexing agents such as ethylenediaminetetraacetic acid (EDTA) and hydroxyethylidene diphosphonic acid (HEDDI). After electroplating wastewater treatment, it achieves convenient solid-liquid separation and recovery through centrifugation and filtration. After acid washing and alcohol washing regeneration, it exhibits excellent cycle stability. With its superior purification efficiency and recycling advantages, it has shown promising development potential in the field of electroplating wastewater treatment.

This invention discloses a bimetallic complex with whitening and anti-aging effects, its preparation method, and its application, belonging to the field of biomaterial preparation technology. The preparation method includes S1, dissolving an amino acid in water to obtain solution A; S2, dissolving a metal salt in ethanol to obtain solution B; S3, mixing solutions A and B evenly, and then reacting them through a solvothermal reaction to obtain solution C; S4, washing and drying solution C to obtain the final product. The amino acid in step S1 is at least one of glutamic acid and aspartic acid; the metal salt in step S2 is copper acetate and zinc acetate, copper acetate and manganese chloride, or copper acetate and cobalt nitrate; the solvothermal reaction conditions in step S3 are: temperature 60-110℃, reaction time 2-48h. The prepared bimetallic complex has both whitening and anti-aging effects, providing a new direction for the application of BioMOFs materials.

This invention provides a sheet-like sulfur-containing carbon nitride / tubular copper-doped phosphorus-nitride homo-heterojunction, its preparation method, and its application. The preparation method is as follows: S1. Calcining trithiocyanate to obtain sheet-like sulfur-containing carbon nitride; dissolving copper acetate and melamine in water, then adding concentrated phosphoric acid and stirring until homogeneous, and obtaining a tubular copper-doped phosphorus-nitride precursor using a hydrothermal method; S2. Dispersing the tubular copper-doped phosphorus-nitride precursor and sheet-like sulfur-containing carbon nitride in ethanol or an ethanol-water solution, ultrasonicating, stirring, drying, and then performing a second calcination to obtain the sheet-like sulfur-containing carbon nitride / tubular copper-doped phosphorus-nitride homo-heterojunction. The prepared sheet-like sulfur-containing carbon nitride / tubular copper-doped phosphorus-nitride homo-heterojunction is sensitive to visible light response, has high photocatalytic hydrogen production activity, and the preparation method is simple, easy to operate, and has good reproducibility.

The invention relates to the technical field of catalysts, in particular to a reverse water gas shift reaction catalyst and a preparation method and application thereof. The preparation method of the reverse water gas shift reaction catalyst provided by the invention comprises the following steps: dissolving a Cu salt and a Co salt in water, adding a TS-1 molecular sieve, stirring, heating in a water bath until water is evaporated to dryness, drying and calcining the evaporated sample, and finally performing reduction treatment to obtain the reverse water gas shift reaction catalyst, wherein the Cu salt is selected from one or more of copper acetate, ethylenediamine tetraacetic acid copper diammonium or copper gluconate, and the Co salt is selected from one or more of cobalt acetate, cobalt acetylacetonate or cobalt disalicylaldehyde ethylenediamine. According to the method, the organic metal salt is uniformly loaded on the TS-1 molecular sieve through a wet impregnation method, and the organic metal salt and the TS-1 molecular sieve interact to form a stable active center with high dispersity, so that efficient conversion of carbon dioxide is realized.

The invention provides a preparation method and application of a porous organic framework film ammonia gas sensor, and the preparation method comprises the following steps: S1, preparing an abietic acid solution, dropwise adding the abietic acid solution into ultrapure water, stirring to obtain a white emulsion, standing, centrifuging, carrying out suction filtration separation to obtain a white solid, and drying to obtain purified abietic acid; s2, dissolving cupric acetate and purified abietic acid in absolute ethyl alcohol according to a preset molar ratio, carrying out ultrasonic uniform mixing treatment, reacting in a constant-temperature oil bath at 55 DEG C for 5 hours, cooling to room temperature, pouring into ultrapure water to separate out a product, and carrying out suction filtration and drying to obtain a copper abietate porous organic framework; and S3, dissolving the copper abietate porous organic framework in dimethyl sulfoxide to prepare a dispersion liquid, sucking 2mL of the dispersion liquid, uniformly dispensing the dispersion liquid to two surfaces of a quartz crystal oscillator, and drying to form the porous organic framework film ammonia gas sensor. The preparation method has the beneficial effect that the porous organic framework ammonia gas sensor which has a high specific surface area, a regular pore structure and specific adsorption sites for ammonia gas can be prepared.

The application discloses a preparation method of N,N-diaryl urea compounds, which couples aromatic amine compounds into N,N-diaryl urea compounds through carbonylation. The application uses formic acid as a carbonyl source, copper acetate as an oxidant, palladium acetate as a catalyst, 1,4-dioxane as a solvent, and performs a reflux reaction at 120 DEG C. The method has good safety and high yield.

The invention discloses a copper-doped high-nuclear-number titanium-oxygen cluster compound as well as a preparation method and application thereof, and relates to the field of materials and photoelectrocatalysis. The method for preparing the copper-doped high-nuclear-number titanium oxygen cluster compound comprises the following steps: 1) adding 3, 5-dimethylbenzoic acid, phenanthroline, cupric acetate and ammonium iodide into a solvent, and stirring to uniformly mix to obtain a turbid liquid; and (2) adding tetraisopropyl titanate and formic acid into the turbid liquid obtained in the step (1), uniformly stirring under sealing, carrying out heat preservation reaction, and after the reaction is finished, carrying out post-treatment to obtain a target product. The preparation method is simple, raw materials are easy to obtain, and industrial production is easy; a template agent or a surfactant is not needed in the reaction process, the raw material cost is low, the post-treatment is simple, the pollution is less, and the green and environment-friendly requirements are met. According to the prepared copper-doped high-nuclear-number titanium-oxygen cluster compound, due to doping of Cu, the high-nuclear-number titanium-oxygen cluster compound has high selectivity, and the Faraday efficiency of the product urea is improved.

The invention discloses humidity response type antibacterial and mildew-proof leather and a preparation method thereof. The method comprises the following steps: firstly, dissolving silver nitrate and quercetin to obtain QC-Ag nanoparticles; secondly, preparing polydopamine nano particles; then copper acetate is dispersed in an ethanol solution, PDA nano-particles are added, ultrasonic stirring and standing precipitation are carried out, precipitates are added into an ethanol solution of sodium hypophosphite, reflux condensation is carried out for 30 min at the temperature of 80 DEG C, and PDA-Cu nano-particles are obtained after alcohol and water alternate centrifugation and drying treatment are carried out. And finally, physically blending the obtained QC-Ag nano-particles and PDA-Cu nano-particles with a polyacrylate emulsion in proportion, and constructing the two nano-composite finishing agents on the surface of leather by adopting layer-by-layer self-assembly, brush coating or magnetron sputtering. The leather coating prepared by the method has a remarkable inhibition effect on growth of aspergillus niger, and particularly has good wet-sensing, antibacterial and mildew-proof properties when the environment humidity changes.

The invention belongs to the technical field of photocatalytic materials, and discloses a method for loading copper oxide quantum dots on the surface of titanium dioxide, which comprises the following steps: coating the surface of TiO2 with carbon quantum dots (CQDs) to form a composite material CQDs / TiO2, and placing the prepared material in a dark environment for more than 24 hours, so that the TiO2 of the CQDs / TiO2 is reversibly converted from hydrophilic to hydrophobic, and the CQDs still maintain the hydrophilic property; in a dark environment, CQDs / TiO2 is immersed in a cupric acetate solution, is rapidly taken out and absorbs a surface solution, so that the solution only exists at a CQDs site; and finally, carrying out air calcination at 400 DEG C through a thermal decomposition method, and cooling to obtain a material structure in which the CuO quantum dots are loaded on the surface of TiO2. The method is suitable for functional modification of materials with fine nanostructures, has significant significance in improvement of photocatalyst performance, and provides a new synthesis thought for design of semiconductor quantum dot heterojunction materials.

This invention discloses a Ti3C2T x / TiO2 / CuO nanocomposite material and a gas sensor based thereon, the nanocomposite material being a multilayer Ti3C2T obtained by etching x The composite material prepared by this invention is prepared by a hydrothermal reaction of a mixed solution of powder and copper acetate. The composite material possesses gas-sensitive properties, based on the constructed Ti3C2T... x The TiO2 / CuO gas sensor features fast response, high sensitivity, good stability, good selectivity, and low detection limit, enabling accurate and rapid detection of ethanol gas.

The invention discloses a CuO / TiO2 (at) SA super-hydrophobic coating and a preparation method thereof.The preparation method comprises the steps that tetrabutyl titanate, NaOH and copper acetate are added into a mixed solution obtained by evenly stirring absolute ethyl alcohol, deionized water and acetic acid to be evenly stirred, a hydrothermal reaction is conducted, cooling, centrifugal washing and drying are conducted, and CuO / TiO2 composite nanoparticles are obtained; and dispersing the CuO / TiO2 composite nanoparticles in an ethanol solution of stearic acid to obtain a colloid, immersing a cleaned pretreated cotton fabric in the colloid, extruding, pulling and drying to obtain the CuO / TiO2 (at) SA super-hydrophobic coating. According to the invention, CuO nanorods and TiO2 nanoparticles are utilized to synergistically construct a rice-shaped micro-nano dual coarse structure, and the rice-shaped micro-nano dual coarse structure and the stearic acid low-surface-energy layer are synergistically acted, so that the surface has self-cleaning capability, and liquid drops can take away dust when rolling down, thereby realizing the integration of multiple functions of self-cleaning, corrosion resistance, ice prevention and the like.

The invention discloses a polyacrylate / PDA-Cu nano composite material as well as a preparation method and application thereof. The method comprises the following steps: dissolving dopamine hydrochloride in a tris (hydroxymethyl) aminomethane aqueous solution, adjusting the pH value to 8.5 by using concentrated hydrochloric acid, and stirring for reaction to obtain the polydopamine nanoparticles. The preparation method comprises the following steps: dispersing cupric acetate in an ethanol solution, adding PDA nanoparticles, carrying out ultrasonic stirring, standing, collecting a precipitate, adding the precipitate into an ethanol solution of sodium hypophosphite, carrying out reflux condensation at 80 DEG C for 30 min, and carrying out alcohol and water alternate centrifugation and drying treatment to obtain the PDA-Cu nanoparticles. And the obtained PDA-Cu nano particles are physically blended with a polyacrylate emulsion. The prepared PDA-Cu nano composite material is simple in preparation process, safe and environmentally friendly, the obtained nano composite material has a remarkable inhibition effect on growth of aspergillus niger, and the moisture permeability of a leather sample after coating is improved.

The application relates to the technical field of catalyst preparation, in particular to a Cu-N-C catalyst and application thereof in glycerol conversion synthesis of lactic acid, which comprises the following steps: step one: copper acetate and 1,10-phenanthroline are added into a solvent for mixing to obtain a mixture, the mixture is heated in an oil bath, and then a template agent is added into the heated mixture for stirring; step two: the solvent in the mixture is removed by rotary evaporation to obtain a mixed solid, and the mixed solid is ground into fine powder after vacuum drying; step three: the fine powder is pyrolyzed under a nitrogen atmosphere to obtain a pyrolysis product; and step four: the pyrolysis product is subjected to acid washing treatment to remove the template agent, and then vacuum drying is carried out to obtain the Cu-N-C catalyst; the problems of poor catalyst stability and high cost of noble metal catalysts existing in the prior art glycerol catalytic dehydrogenation lactic acid synthesis technology are solved.

The invention discloses a Cu3 (MoO4) 2 (OH) 2 material as well as a preparation method and application thereof.The Cu3 (MoO4) 2 (OH) 2 material is synthesized by taking copper acetate and ammonium molybdate as raw materials and adopting a one-step hydrothermal method, the Cu3 (MoO4) 2 (OH) 2 material is of a rod-shaped cluster structure and has a developed pore system, the contact area between the material and an electrolyte is remarkably increased, more oxidation-reduction active sites of molybdenum and copper are exposed, and the oxidation-reduction activity of molybdenum and copper is improved. A sufficient reaction interface is provided for embedding / removing of ammonium ions, a continuous ion transmission channel is formed by multistage pores, and electrolyte infiltration and ion migration are accelerated. Meanwhile, gaps among particles in the Cu3 (MoO4) 2 (OH) 2 material cluster provide a buffer space for volume expansion in the NH4 < + > intercalation / deintercalation process, mechanical stress is reduced, material pulverization or structure collapse is avoided, the cycle stability is remarkably improved, and the problems that an existing water system ammonium ion battery positive electrode material is poor in stability, low in specific capacity and short in cycle life are solved.

The invention discloses a preparation method of single crystal cuprous oxide nano-particles with high crystal quality and capable of accurately regulating and controlling the particle size. The preparation method of the monocrystal cuprous oxide nanoparticles comprises the following steps: irradiating an aqueous solution of cupric acetate by using a main light source and an auxiliary regulation and control light source at the same time to generate the cuprous oxide nanoparticles in situ, the main light source is an ultraviolet light source of 200-400 nm; the auxiliary regulation and control light source is a light source with the wavelength of 300-600 nm. According to the invention, based on a physical regulation and control strategy of dual-light-source synergistic irradiation, on the basis of ultraviolet chemical synthesis, the size and uniformity of the product can be remarkably regulated and controlled only by introducing visible light with a specific wavelength to assist irradiation; the whole process ensures that the original reaction has the advantages of no need of complex equipment, vacuum environment, lengthy reaction time or subsequent annealing treatment and the like, has the characteristics of greenness, environmental protection and process simplification, and realizes effective regulation and control on the size and morphology of the product.

The invention relates to the field of catalysts, and discloses a bimetal-doped manganese dioxide and carbon nanotube composite catalyst and an application thereof, the catalyst comprises the following components by mass: 90-110 parts of acidified multi-walled carbon nanotubes; 14 to 62 parts of copper acetate (II) monohydrate; 180 to 220 parts of potassium permanganate; and 28 to 82 parts of cerous nitrate (III) hexahydrate. The composite catalyst with a spatial separation interface structure is prepared by firstly loading a copper source on a multi-walled carbon nanotube and then adopting a dual pH gradient process and a hydrothermal method of injecting a reducing agent in a pulse manner, so that a Cu < + > valence copper species can be contained in an interface region of a copper oxide phase and a cerium element doped alpha-manganese dioxide nanorod; the catalyst provided by the invention has low-temperature oxidation-reduction performance in hydrogen temperature programmed reduction, so that the catalyst shows higher low-temperature activity in catalytic oxidation of volatile organic compounds.

The invention relates to the technical field of porous metal material preparation, in particular to a porosity-controlled pure copper porous structure preparation method which comprises the following steps: preparing a solution A (PS-b-PEO / toluene) and a solution B (CS-SFB and cupric acetate / DMF); dropwise adding the solution B into the solution A to form a composite precursor; preparing a solution C (L-ascorbic acid / DMF), and dropwise adding the solution C into the precursor for reaction; performing centrifugation, toluene reflux extraction, drying and inert atmosphere heat treatment on the product to obtain a pure copper porous structure; wherein the PS-b-PEO is obtained by preparing PEO-Br from PEO-COOH and then copolymerizing the PEO-Br with styrene. The CS-SFB is prepared by carrying out grafting reaction on chitosan and salicylaldehyde; the technical problems that in the reduction process of copper ions, uncontrollable agglomeration is prone to occurring, and structural orientation is lacked are solved.

This application provides a supported composite catalyst for the production of N-methyl-o-fluoroaniline, with Al2O3 as the support and K2CO3, MgO, and Cu as the active components. A method for preparing the supported composite catalyst includes the following steps: Step 1: Dissolving a predetermined mass of potassium carbonate and magnesium nitrate in anhydrous ethanol to obtain a primary impregnation solution; dissolving copper acetate in anhydrous ethanol to obtain a secondary impregnation solution; Step 2: Adding Al2O3 to the primary impregnation solution for thorough impregnation, and drying to obtain a first precursor; Step 3: Adding the first precursor to the secondary impregnation solution for thorough impregnation, and drying to obtain a second precursor; Step 4: Calcining the second precursor at high temperature, and then cooling to room temperature to obtain a K2CO3-MgO-CuO / Al2O3 intermediate; Step 5: Reducing the K2CO3-MgO-CuO / Al2O3 intermediate with hydrogen at high temperature to obtain K2CO3-MgO-Cu / Al2O3, which is the supported composite catalyst of this application. The catalyst of this application can significantly improve the reaction rate, reduce side reactions, and has high stability.