64results about How to "The preparation method is simple and economical" patented technology

The invention discloses a carbon material/covalent organic two-dimensional gird composite electrode material as well as a preparation method and application thereof. The carbon material/covalent organic two-dimensional gird composite electrode material has the advantages that a graphitized carbon material is taken as a base template, a covalent organic two-dimensional gird layer grows on the graphitized carbon material base in situ, and the covalent organic two-dimensional gird layer is prepared by carrying out reaction on an aroma polyaldehyde compound and diamino-anthraquinone; a covalent organic two-dimensional gird prepared by taking diamino-anthraquinone as a reaction monomer is compounded with the graphitized carbon material for the first time, and a condition for growing the covalent organic two-dimensional gird on the graphitized carbon material is provided; meanwhile, the preparation method is simple and economic, no high-end delicate instrument is needed, no high energy is needed, and the actual production need can be met; and compared with an electrode prepared by directly adopting covalent organic two-dimensional gird crystal powder, the preparation method disclosed by the invention has the advantage that the utilization rate of an electrochemical active group, namely diamino-anthraquinone, is increased.

The invention discloses a novel bimodal (magnetic/fluorescent) integrated molecular image probe and a preparation method. The preparation method for the molecular image probe comprises the following steps of: adding a carbon nanometer material into mixed solution of hydrogen peroxide and ammonia water, and reacting to obtain solution containing the magnetic/fluorescent bimodal molecular image probe; centrifuging to remove insoluble substances and concentrating; and adding ethanol into concentrated solution, oscillating to generate a large number of precipitates, collecting the precipitates, washing by using the ethanol, and drying to obtain the magnetic/fluorescent bimodal molecular image probe, wherein the carbon nanometer material may be one of metal-embedded fullerene, hollow fullereneand oxidized graphene. In the method, the intervention of an organic solvent is saved, intermediate products are not needed to be separated, conditions of water, oxygen and the like are saved, and the preparation method has the advantages of simplicity, economy, environment friendliness and the like.

The invention discloses amino acid modified metallofullerene water-soluble nanoparticles as well as a preparation method and an application thereof. The general structural formula of the amino acid modified metal fullerene water-soluble nanoparticles is metallofullerene@C2n(OH)x(Amino Acid)y, wherein x is larger than or equal to 0 and smaller than 50, y is larger than or equal to 0 and smaller than 20, and Amino Acid is water-soluble amino acid. The preparation method comprises steps as follows: an alkaline solution of water-soluble amino acid and metallofullerene are mixed and subjected to a nucleophilic addition reaction, and thus the amino acid modified metallofullerene water-soluble nanoparticles are obtained. The nanoparticles can be dissolved in water, and the preparation method is simple and environment-friendly.

The invention discloses a CuO-carbon nano tube composite macro-nano ball, a preparation method thereof and application of the CuO-carbon nano tube composite macro-nano ball. The method for preparing the CuO-carbon nano tube composite macro-nano ball comprises the following steps: 1) a surfactant and cupric salt are dissolved to be prepared into a reactant solution A; 2) a carbon nano tube is dispersed into N, N-dimethyl formamide to obtain a reaction solution B; 3) the reaction solution B is added into the reactant solution A, and dispersed to obtain a dispersed solution C; and 4) the dispersed solution C is added with ammonia and subjected to heating reflux reaction to obtain the CuO-carbon nano tube composite macro-nano ball. The method takes the surfactant such as polyoxyethylene-polyoxypropylene-polyoxyethylene as a structure-directing agent, adopts a simple solution reflux method for one-step synthesis to obtain the CuO-carbon nano tube composite macro-nano ball. The used preparation raw materials are simple and have wide sources; and the preparation method is simple and economic, has low energy consumption and is convenient to operate, and can realize large-scale synthesis of the CuO-carbon nano tube composite macro-nano ball.

The invention discloses a preparation method for a two-dimensional MoS2 regulated and controlled photocatalyst. The method comprises the following steps: (1) performing electrodeposition at the surface of a conductive substrate by using a Fe<2+> precursor solution as an electrolyte, and performing calcination treatment to obtain a Fe2O3 film; and (2) immersing the Fe2O3 film into a precursor solution of MoS2 and C3N4, performing electrodeposition, and performing constant-temperature calcination in an inert atmosphere to obtain a Fe2O3-MoS2/C3N4 film. The invention also discloses the two-dimensional MoS2 regulated and controlled photocatalyst prepared by the above method and an application of the photocatalyst in treatment of phenol-containing wastewater. The preparation method provided bythe invention only adopts an electrodeposition method, the preparation process is simple, the repeatability is high, and the economic costs are lower. The invention also discloses the two-dimensionalMoS2 regulated and controlled photocatalyst prepared by the above method, the photoinduced electron-hole pair of the prepared Fe2O3-MoS2/g-C3N4 film has high separation efficiency, the photoelectric performance is strong, and the stability is high.

The invention discloses an external-use drug and preparation with analgesic and antibacterial effect and a preparation method thereof. The external-use drug comprises a component A like silver sulfadiazine, a component B like zinc sulfadiazine and an analgesic component like lidocaine. Excipients of the preparation include Carbomer, glycerin, triethanolamine and water. The preparation method includes: adding water into Carbomer for swelling, and adding triethanolamine to adjust pH to obtain transparent colloid; adding glycerin dispersed with the components A and B into the transparent colloid to obtain milky colloid; using water to disperse and dissolve the analgesic component, adding into the milky colloid, using water to adjust water content, and stirring well. The external-used drug and preparation has the analgesic and antibacterial effect, wound healing time can be shortened remarkably, and the preparation method is simple, convenient, economical and wide in application prospect.

A technology for manufacturing the Cu-alloy bush used for large grinder includes such steps as providing hot rolled aluminium-bronze plate QAL9-4, rolling to become arc blank, fixing it to special supporter, ageing in heating furnace, fixing it to special die, and machining. Its advantages are high strength and high resistance to high temp, abration and pressing.

The invention provides a preparation method for a high-concentration compound organic pollution restoration agent. The preparation method includes the steps of preparing, optimizing and modifying sodium-type bentonite and forming modified bentonite. The preparation method is simple and economical, the prepared restoration agent has outstanding performance of adsorbing various organic pollutants and particularly existing high-concentration organic pollutants, is reliable in adsorption, stable in nature and environmentally friendly and is an economical high-practicability restoration agent. The restoration agent is particularly suitable for treating and restoring high-concentration compound organic pollution, for example, severe organic pollution soil, organic waste water and refuse landfill organic leachate.

The invention discloses a tellurium-zinc sulfide heterojunction compound hollow microsphere and a preparation method thereof. Chloroform is taken as a solvent, and ammonium hydroxide is taken as a buffered solution; a tellurium source, a sulfur source and an accelerant are added into the chloroform, then, the ammonium hydroxide is added to form a mixed solution, the mixed solution is added into areaction still, and the reaction still is put into a drying oven at the temperature of 130 DEG C to react for four hours; then, the reactant of the reaction still is poured into a centrifuge tube to absorb liquid in the centrifuge tube; ethyl alcohol is added for washing, ultrasound is carried out for five minutes, and then, the centrifuge tube is put into a centrifuge to be centrifuged for 5-10 minutes to remove liquid; with the same method, according to a water-water-ethyl alcohol sequence, washing is carried out, and a product is put in the drying oven at the temperature of 90 DEG C after washing is completely carried out to be dried for five hours to obtain the ZnS/Te microsphere. The tellurium-zinc sulfide microsphere prepared with the preparation method can be used for favorably remove various heavy metal ions, including Pb<2+>, Hg<2+>, Cu<2+> and Cd<2+>, in waste water, the removal rate of the tellurium-zinc sulfide microsphere for various ions is high and can be 98% or above, and removal efficiency even for low-concentration heavy metal ions is still high.

The invention discloses a Beta zeolite and a preparation method thereof. The Beta zeolite has the properties as follows: the total pore volume is 0.45-0.99ml/g, the mesoporous pore volume is 0.25-0.89ml/g, the specific surface is 550-1,000m<2>/g, the mesoporous specific surface is 200-600m<2>/g, the volume ratio of the pore volume to the total pore volume is 0.56-0.9 and the acid content is 0.30-0.85mmol/g. The preparation method comprises the steps of (1) mixing deionized water, a surfactant and a silicon source in an agitated vessel evenly, heating the agitated vessel to maintain certain pressure in the agitated vessel and adding a template agent, an aluminum source and sodium hydroxide to the agitated vessel; (2) controlling the certain pressure in the agitated vessel for crystallization; and (3) closing a decompression valve, further carrying out constant-temperature crystallization, carrying out decompression, carrying out solid-liquid separation on the crystallization product, washing, drying and roasting to obtain the Beta zeolite. The Beta zeolite crystal particles have a lot of mesoporous channel structures, the mesoporous specific surface and the mesoporous pore volume are improved, mesoporous channels are communicated with microporous channels; and the diffusibility of the Beta zeolite is greatly improved. According to the method, the operation is simple in the preparation process, the production cost is low and the beta zeolite is suitable for massive industrial production.

The invention relates to an adsorbent and a preparation method thereof and in particular relates to an adsorbent for adsorbing small molecular gas and a preparation method thereof. The adsorbent comprises a physical adsorbent and chemical adsorbents, wherein the chemical adsorbent is attached on the physical adsorbent. The adsorbent takes the conventional physical adsorbent for treating organic waste gas as a carrier, and the chemical adsorbents including magnesium chloride, calcium chloride, copper sulfate and the like are attached on the physical adsorbent; a working principle is similar with that of the conventional physical adsorbent; the adsorbent has good technology compatibility and an efficient adsorption capability on low-carbon-number small molecules including methanol, ethanol and the like, so that the treatment effect on the organic waste gas is greatly improved; and the preparation method of the adsorbent is simple and economical and is suitable for large-scale industrialpopularization and application.

The invention provides low-density and high-elasticity hydrophobic/oleophylic carbon sponge, a preparation method and applications thereof, wherein melamine-derived carbon sponge is soaked in a surface modifier solution, and the surface of the melamine-derived carbon sponge is modified with the surface modifier to prepare the low-density and high-elasticity hydrophobic/oleophylic carbon sponge. The hydrophobic/oleophylic carbon sponge provided by the invention has good adsorption effect on oil substances, can be used for efficiently recovering oil from water through an adsorption-extrusion desorption method, can be recycled, and has wide application prospect in the fields of adsorption and separation treatment of oil stains on the surface of a water body and the like. The preparation method of the low-density high-elasticity hydrophobic/oleophylic carbon sponge is simple, economical, convenient to operate and suitable for large-scale preparation.

The invention discloses a photoelectric synapse device based on an organic-inorganic heterojunction, and a preparation method and application thereof. The device sequentially comprises a bottom electrode, an oxide layer, a polymer layer and a top electrode from bottom to top, the oxide layer is a zinc oxide nano array prepared by a hydrothermal method, and the polymer layer is a two-dimensional conjugated microporous polymer prepared by a solution method. Due to the fact that the zinc oxide nano array and the polymer have strong light absorption performance in ultraviolet and visible light wave bands respectively, the zinc oxide nano array and the two-dimensional polymer are assembled layer by layer, and the constructed organic-inorganic two-dimensional heterojunction can achieve light absorption in the range from ultraviolet to visible light. The device can change the carrier concentration and the current intensity by adjusting the illumination time/intensity, and further can simulate the current enhancement effect and the empirical learning behavior after excitatory synapse in the human brain. The photoelectric synapse device based on the organic-inorganic heterojunction prepared by the invention has the performance advantages of broadband response, easiness in preparation, low cost, low power consumption, high stability and the like.

The invention provides a preparation method of a remediation agent for low-concentration single-type organic pollution. The preparation method comprises the following steps: preparation of sodium bentonite, optimization of the sodium bentonite, modification of the sodium bentonite through excessive low-molecular-weight quaternary ammonium bromide solutions as well as forming of the modified bentonite. The preparation method of the remediation agent for the low-concentration single-type organic pollution is simple and economical; the prepared remediation agent has excellent adsorbability on neutral organic matters especially aromatic organic matters, further has the advantages of reliable adsorption, stable properties, environment friendliness and higher practical values, and is particularly applicable to governance and remediation of low-concentration single-type organic pollution such as remediation and governance of mild organic pollution soil or native water.

The invention belongs to the technical field of composite materials, and relates to an LDH-based composite material, in particular to an LDH-based composite material based on nickel-containing sludge. The LDH-based composite material comprises sludge and LDH nanosheets, wherein the size of the LDH nanosheets is 400-800 nm, the mass percentage content of the LDH nanosheets is not less than 10%, and the LDH nanosheets are one or any combination of more of Ni-Al LDH, Mg-Al LDH and Zn-Al LDH and are uniformly mixed with the sludge. The invention also discloses a preparation method of the material. The functional material is prepared from the solid waste sludge containing the heavy metal, the sludge is turned into wealth, the problem that the heavy metal sludge is difficult to treat is solved, and the material is stable in property, large in specific surface area and capable of being used in the fields of catalysis, adsorption and chemical separation; and the preparation method is simple, economical, free of secondary pollution and suitable for industrial application.

The invention discloses a surface preparation method of a flexibility-controllable liquid drop self-driven multistage gradient structure. The method includes following steps: (1), preparing coating liquid; (2), preparing a covering plate; (3), preparing a multistage gradient structure surface having flexibility; (4), adjusting and controlling the flexible surface. On the basis that a flexible material is combined with a bent structure, and the coating liquid immerses into holes in a silicon template and solidifies to form a cylindrical structure. The preparation method is simple and efficient, and probability of directionally driving liquid drops is realized. The multistage structure is prepared by using a flexible VHB adhesive tape as a substrate, so that changing of arrangement density of the multistage structure can be realized by stretching the substrate, and control on liquid drop directional driving speed can be realized. Pre-stretching strain of the VHB adhesive tape can be changed properly, so that acquired bending and wrinkling amplitude is changed correspondingly.

The invention belongs to the field of preparation of antibacterial agents, and particularly relates to an anisaldehyde/diarginine composite antibacterial agent, and a preparation method and an application thereof. Diarginine, anisaldehyde, ethanol and sterile distilled water are mixed according to a certain ratio to prepare the anisaldehyde/diarginine composite antibacterial agent, so that the preparation cost of the antibacterial agent can be reduced, and the antibacterial performance of the antibacterial agent can be improved. The novel composite antibacterial agent can effectively kill various food-borne pathogenic bacteria, such as escherichia coli O157 and listeria monocytogenes. Compared with single diarginine (anisaldehyde), the composite antibacterial agent has a good antibacterialeffect in application of vegetables and cheese.

The invention relates to a d10 transition metal acetylide two-dimensional nanosheet and a preparation method thereof. The d10 transition metal acetylide two-dimensional nanosheet has a monocrystal structure, and the mole ratio of d10 transition metal and alkyne source in the d10 transition metal acetylide is 1: 1-1: 1.2. The d10 transition metal acetylide two-dimensional nanosheet has monocrystal structure, uniform thickness, and good dispersing property. Due to the specific conjugated structure of quasi-graphene, the structure makes that the material has high in-plane carrier concentration, and can be used as promoter for supporting electronic conduction or two-dimensional photoelectricity sensing material; the nanosheet is expected to apply to catalyst, photoelectricity, biology and other domains.

The invention belongs to the field of food antibacterial additives, in particular to a preparation method for an intensive pulse light treated cumaldehyde/tetra-lysine antibacterial agent. According to the antibacterial agent prepared by the preparation method, firstly, tetra-lysine is mixed with cumaldehyde, ethanol and sterile distilled water according to a certain proportion; magnetic stirringfor dissolution is performed to obtain a compound antibacterial agent solution; and then, the compound antibacterial agent solution is treated with intensive pulse light to obtain the intensive pulselight treated cumaldehyde/tetra-lysine antibacterial agent. The preparation method is simple, and the prepared antibacterial agent is safe and non-toxic, has the biological film inhibiting feature andrelatively high antibacterial activity, can effectively inhibit growth of all kinds of escherichia coli and biological films thereof and growth of staphylococcus aureus and biological films thereof,and has very good market application value in the field of food safety.