73 results about "Thioacetamide" patented technology

The invention discloses a mixing device for preparing thioacetamide, and relates to the technical field of thioacetamide mixing. Comprising a mixing installation part, an isolation mixing part is installed on the mixing installation part, and the isolation mixing part is used for mixing thioacetamide raw materials; a filler control piece is mounted on the mixed mounting piece; a stored material detection part is mounted on the mixed mounting part; the stored material detection piece is used for detecting melting of solid raw materials; a discharge control part is mounted at the bottom of the mixed mounting part; the discharge control part is used for discharging a thioacetamide raw material mixed solution; by adopting the premixing discharging part, when the discharging electromagnetic valve needs to be opened for discharging work, the mixing motor is kept to be started and is in a driving mixing state; the mixing device is used for solving the problem that the existing mixing device for manufacturing thioacetamide is easy to generate precipitates when discharging thioacetamide raw material mixed liquid intermittently for multiple times.

The invention discloses a preparation method of FePS3, which comprises the following steps: mechanically mixing pyrite powder, sulfur-containing small molecules and elemental phosphorus, calcining the fully mixed powder in two temperature stages under a protective atmosphere, and cooling to obtain FePS3 nano-powder; wherein in the first temperature stage, the temperature is 200-300 DEG C, and the heat preservation time is 120-240 minutes, and in the second temperature stage, the temperature is 400-600 DEG C, and the heat preservation time is 120-180 minutes; the sulfur-containing small molecules are thiourea, thioacetamide or a mixture of the thiourea and the thioacetamide; the molar ratio of sulfur atoms to phosphorus atoms in FeS2 molecules and sulfur-containing small molecules in the pyrite powder is (1: 3: 5)-(1: 1: 5). According to the method, pyrite is used as an iron source and a sulfur source, sulfur-containing small molecules are used as a second sulfur source, and the FePS3 nano-powder is directly obtained through solid-phase reaction with the simple substance phosphorus without additional purification treatment. The method is low in solid-phase reaction temperature and simple in process, does not need harsh reaction conditions, and is easy for large-scale production.

The invention discloses a preparation method and application of a ferroelectric enhanced core-shell structure artificial photosynthetic heterojunction catalyst, and belongs to the field of solar energy conversion and photocatalytic degradation. The invention aims to explore the technical problems of low-cost green preparation, high photoelectric conversion efficiency and photocatalytic performance improvement of the photocatalyst. The method comprises the following steps: 1, respectively dissolving bismuth nitrate pentahydrate and iron nitrate nonahydrate in ethylene glycol in sequence, heating in a water bath, stirring, aging, transferring sol into an air dry oven, drying to obtain gel powder, grinding, transferring the powder into a muffle furnace, and calcining to obtain BiFeO3 powder (named as BFO); and 2, dissolving thioacetamide in deionized water, fully stirring, adding the BFO prepared in the step 1, transferring the solution into an ultrasonic cleaning machine, carrying out ultrasonic dispersion, transferring the solution into a reaction kettle, carrying out heating reaction, cooling, washing, and drying to obtain the ferroelectric enhanced Bi2S3 / BFO photocatalyst with a stable heterojunction structure.

A ZIF-derived zinc-cadmium sulfide photocatalyst, its preparation method, and its application are disclosed. The catalyst, by molar fraction, comprises: 35-50% 2-methylimidazole; 0-7.7% divalent cadmium ion compound; 0-7.7% divalent zinc ion compound; 7-10% thioacetamide; and 35-50% amines. The preparation method involves: preparing a 2-methylimidazole solution and a cadmium-zinc mixed solution separately; then preparing a ZIF precursor solution with cadmium and zinc as the central metals; adding thioacetamide to the precursor solution; transferring the solution to a polytetrafluoroethylene liner and hydrothermally treating it; finally collecting the hydrothermally treated solution, centrifuging, washing, drying, and grinding to obtain the ZIF-derived zinc-cadmium sulfide photocatalyst. The catalyst prepared by this invention has a large specific surface area and exhibits significant catalytic effects in photocatalytic water splitting for hydrogen production. Furthermore, the catalyst has a stable structure and can be recycled for a long period without a significant decrease in the hydrogen production rate.

The invention discloses a preparation method of a CuInS2 / FeS2 wood mildew-proof antibacterial agent, which comprises the following steps: dissolving cuprous chloride, indium chloride tetrahydrate, ferric trichloride hexahydrate and thiourea or thioacetamide in ethylene glycol, and carrying out one-step solvothermal reaction and calcination to obtain a CuInS / FeS composite antibacterial agent; the material has triple effects of photo-thermal, photocatalysis and copper ion slow release, and can inhibit mildew and decay fungi on the surface of wood under the condition of visible-near infrared illumination or no illumination. NH4VO3 and 2-methylimidazole are added into a reaction system and calcined in an ammonia-containing atmosphere, so that a V < 5 + > / V < 4 + > redox pair can be formed on the surface, near-infrared absorption is further widened, electron-hole recombination is delayed, and long-acting antibiosis under weak light is realized. The process is simple, does not contain chromium and arsenic heavy metals, and is suitable for environmental protection of wood materials.

The invention relates to a preparation method of a polyacid modified CuMoSelectrode material, and belongs to the technical field of new energy materials and photoelectric conversion. According to the preparation method, an in-situ synthesis method is adopted, and SiW11Co is doped in a CuMoS material through a one-step solvothermal preparation technology; comprising the following steps: S1, dissolving sodium molybdate and thioacetamide in ethylene glycol, then adding SiW11Co into the solution for dissolving, finally adding Cu2O, and carrying out ultrasonic treatment on the mixed solution at room temperature for 10-15 minutes to obtain a uniform dark brown suspension; s2, continuously stirring for 5 minutes, transferring the precursor suspension into a high-pressure reaction kettle, and carrying out a solvothermal process for 22-24 hours; s3, the reaction kettle is cooled to the room temperature, a final product is centrifugally washed three times with deionized water and absolute ethyl alcohol respectively, then vacuum drying is conducted, and the SiW11Co / Cu2MoS4 composite material is obtained. By introducing a proper amount of SiW11Co, a rough structure is formed on the surface of CuMoS, the number of active sites is increased, the specific surface area is increased, and the catalytic performance and the stability are far better than those of a traditional CuS counter electrode and an unmodified CuMoS counter electrode.

This application relates to a method for preparing multi-acid modified Cu₂MoS₄ electrode materials, belonging to the field of new energy materials and photoelectric conversion technology. An in-situ synthesis method is employed, using a one-step solvothermal preparation technique to dope Cu₂MoS₄ materials with SiW. 11 Co; includes the following steps: S1. Dissolve sodium molybdate and thioacetamide in ethylene glycol, and then add SiW to the solution. 11 Co is dissolved, and finally Cu2O is added. The above mixed solution is ultrasonically treated at room temperature for 10-15 min to obtain a uniform dark brown suspension. S2. After stirring for another 5 min, the precursor suspension is transferred to a high-pressure reactor for a solvothermal process of 22-24 h. S3. The reactor is cooled to room temperature, and the final product is washed three times each with deionized water and anhydrous ethanol by centrifugation, and then vacuum dried to obtain SiW. 11 Co / Cu2MoS4 composite material. This invention utilizes an appropriate amount of SiW... 11 The introduction of Co creates a rough structure on the surface of Cu₂MoS₄, increasing the number of active sites and the specific surface area. This results in catalytic performance and stability that are far superior to those of traditional Cu₂S counter electrodes and unmodified Cu₂MoS₄ counter electrodes.

The application discloses a kind of sulphur-containing amide compounds and its preparation method and application;It has the structural formula shown in formula I: Wherein, R1 Selected from H, C 1～6 Alkyl, naphthyl, wherein, R7 Selected from H, C 1～6 Alkyl, halogen, cyano, cyano-substituted phenyl, nitro, C 1‑6 Alkoxy, phenyl, C 1～6 Halogenated alkyl, C 2～6 Ester group;R2 Selected from H, C 1～6 Alkyl;R3 Selected from H, halogen, C 1‑6 Alkoxy;R4 Selected from H, halogen, cyano, nitro, C 1‑6 Alkoxy, C 1～6 Alkyl;R5 Selected from H, C 1～6 Alkyl;R6 Selected from H, C 1～6 Alkyl, wherein R8 Selected from C 1～6 Alkyl.The application develops a kind of novel structure sulphur-containing amide compounds, and the compound has the effect of inhibiting tumour cell activity.

The invention relates to the technical field of electrode materials, in particular to a Co3S4 / MnCo-LDH / MnCo2S4 nano composite material as well as a preparation method and application of the Co3S4 / MnCo-LDH / MnCo2S4 nano composite material. The preparation method comprises the following steps: taking soluble manganese salt and soluble cobalt salt as raw materials, taking foamed nickel as a carrier, carrying out hydrothermal reaction in an alkaline environment to obtain MnCo-LDH / NF, then immersing the MnCo-LDH / NF in a precursor solution composed of the soluble cobalt salt and 2-methylimidazole, carrying out coordination reaction to obtain MnCo-LDH (ZIF)-67 / NF, and finally carrying out incomplete vulcanization on the MnCo-LDH (ZIF)-67 / NF by adopting thioacetamide to obtain the MnCo-LDH (ZIF)-67 / NF composite material. And the Co < 3 > S < 4 > / MnCo-LDH / MnCo < 2 > S < 4 > nano composite material is obtained. The technical defects of the MnCo2S4 are overcome by virtue of the Co3S4 and the MnCo-LDH.

This invention discloses a method for preparing hollow metal sulfides based on a mild template method using calcium carbonate. Calcium chloride powder and potassium carbonate powder are uniformly dispersed separately in an alcohol solution. The two solutions are then mixed and allowed to stand for aging to obtain solution A. Simultaneously, thioacetamide is dissolved in the alcohol solution to obtain solution B, and a chloride is dissolved in the alcohol solution to obtain solution C. The chloride is either stannous chloride or copper chloride. Then, solutions B and C are added sequentially to solution A at a molar ratio of thioacetamide to chloride of 2:1 and mixed uniformly to obtain solution D. Solution D is then placed in a polytetrafluoroethylene (PTFE) reactor and reacted at 140–180°C for 12 hours. Carbon dioxide is then continuously bubbled through the reactor for 2–3 hours. The mixture is filtered and washed with water and ethanol to obtain the hollow metal sulfides. This invention can obtain hollow metal sulfides with different morphologies and avoids the contamination problems associated with high-temperature calcination or acid dissolution for template removal.

The application discloses a flower ball-shaped bismuth disulfide / tungsten disulfide composite material and a preparation method and application thereof. Tungsten hexachloride is added into anhydrous ethanol solution and fully stirred, then bismuth nitrate pentahydrate is added into the mixed solution and stirred to uniformly disperse the bismuth nitrate pentahydrate into the solution, then thioacetamide is added and stirred to be uniform, the obtained solution is moved into a reaction kettle, and the reaction kettle is sealed and placed into a homogeneous reactor; after the reaction is completed, the product is taken out, washed and fully dried in a vacuum oven to obtain the composite material. The composite material has a thickness of 20-30 nm, and nanosheets are vertically grown on a self-assembled flower ball-shaped structure with a diameter of 350-400 nm; the composite material can be applied to preparation of a potassium ion battery negative electrode material, and the structure is more stable, the conductivity is better, and the electrochemical performance is greatly improved.

The invention provides a preparation method of a composite material for a photo-anode, the photo-anode and a battery, the preparation method of the composite material comprises the following steps: (1) mixing citric acid, urea and ethylene glycol, stirring, heating, filtering and dialyzing, and freeze-drying a solution obtained after dialyzing to obtain carbon quantum dot powder; (2) dissolving thioacetamide and cobalt chloride pentahydrate into an aqueous solution of ethanol, adding the carbon quantum dot powder obtained in the step (1), stirring, carrying out hydrothermal treatment to obtain a precipitate, washing with absolute ethyl alcohol, and then centrifuging and drying to obtain carbon quantum dot doped cobalt sulfide powder; and (3) adding titanium dioxide and the carbon quantum dot doped cobalt sulfide powder obtained in the step (2) into an ethanol aqueous solution, stirring, carrying out hydrothermal treatment to obtain a precipitate, washing, centrifuging and drying to obtain a carbon quantum dot-cobalt sulfide-titanium dioxide composite material, namely the composite material for the photo-anode. According to the invention, higher photoelectric conversion efficiency is obtained.

The invention belongs to the technical field of antibacterial photodynamics, and provides antibacterial photodynamics for treating periodontitis by regulating ROS (reactive oxygen species) through microenvironment response and a preparation method of the antibacterial photodynamics. Comprising the following steps: preparing tin sulfide oxide by taking sodium dodecyl benzene sulfonate, tin chloride pentahydrate and L-cysteine as raw materials; zinc nitrate, copper nitrate, urea and thioacetamide are used as raw materials to prepare nano-enzyme; the antibacterial photodynamic material is prepared by taking indocyanine green, bacterial targeting peptide, nano enzyme, tin sulfide oxide and dihydromyricetin as raw materials. The microenvironment response antibacterial photodynamic force aiming at periodontitis infection and treatment characteristics is constructed, the antibacterial photodynamic force is constructed by a strategy of combining bacterial infection microenvironment response ROS programmed regulation and control, precise and long-acting treatment and immune regulation and control, and the curative effect and scene of the antibacterial photodynamic force for treating periodontitis are improved and widened.

The invention provides nickel sulfide as well as a preparation method, an electrochemical performance test method and application thereof, and relates to the technical field of electrochemical materials. The method comprises the following steps: adding nickel acetate hexahydrate and thioacetamide into a container, adding ultrapure water into the container, and uniformly stirring to obtain a mixed solution; transferring the mixed solution into a reaction kettle, sealing the reaction kettle, putting the reaction kettle into a drying oven, heating the reaction kettle to a first temperature for a first duration, and carrying out a hydrothermal reaction to generate nickel sulfide; and after the hydrothermal reaction is finished, after the reaction kettle is cooled to room temperature, opening the reaction kettle, and washing nickel sulfide in the reaction kettle to prepare nickel sulfide. According to the method, the concentration in nickel sulfide is accurately controlled by regulating and controlling the hydrothermal reaction time, and the electro-catalytic hydrogen evolution performance is improved, so that the performance of the nickel sulfide electrochemical material is optimized.

The invention belongs to the technical field of photothermal-photocatalytic synergistic materials, and particularly relates to a reduced graphene oxide-based nanocomposite as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, uniformly dispersing a graphene oxide dispersion liquid; s2, adding Ti < 3 > C < 2 > TX MXene, cobalt chloride hexahydrate and thioacetamide into the graphene oxide dispersion liquid to form a uniform reaction system; s3, carrying out hydrothermal reaction on the reaction system obtained in the step S2; s4, soaking and washing a product obtained after the hydrothermal reaction in the step S3; and S5, carrying out freeze drying on a product obtained after washing to obtain the reduced graphene oxide-based nano composite material. According to the preparation method disclosed by the invention, the reduced graphene oxide with more oxygen-containing functional groups reserved on the surface is obtained by utilizing the in-situ auto-oxidation reduction reaction between the graphene oxide and the Ti3C2TX MXene under the condition of not needing additional oxidizing agents and reducing agents, so that the composite material is endowed with good water transmission performance, and the high water evaporation rate is realized.

The application belongs to the technical field of organic synthesis, and particularly relates to a method for efficiently and greenly preparing allyl ketoxime in one step. The preparation method specifically comprises the following steps: cross-coupling reaction of enol, hydrazine and aldehyde under the action of a palladium catalyst to obtain an allyl ketoxime compound. The reaction raw materials used in the application are cheap and easy to obtain. The allyl ketoxime compound can be efficiently and greenly prepared in one step through the coupling reaction, the synthesis process is simple, and the synthesis cost is greatly reduced. The reaction condition is mild, the yield is high, the substrate applicability range is wide, the reaction conversion efficiency is high, the gram-scale experiment can be realized, and industrialization is easy to realize.

The application relates to the cross field of photocatalytic composite materials and soil environment remediation technology, and specifically discloses a three-dimensional graphene aerogel loaded cadmium sulfide quantum dot composite material, a preparation method and application of the composite material in soil cadmium pollution remediation, the composite material is composed of a three-dimensional interconnected porous sulfur-doped graphene aerogel skeleton and in-situ anchored cadmium sulfide quantum dots, the cadmium sulfide quantum dots have a particle size of 2-10 nm, a loading amount of 10 wt%-25 wt%, a surface sulfur vacancy density of 5%-8%, the skeleton has a sulfur atom content of 2 at%-5 at%, and the two are connected through a carbon-sulfur-cadmium covalent bridge; the material has a hierarchical porous structure with longitudinal through macropores of 20-80 mu m and intrawall mesopores of 2-20 nm, the material is prepared by adopting a three-stage programmed hydrothermal method, and a sulfur source is released in stages by 30%-50% excess thioacetamide to drive the formation of an epoxy group nucleophilic ring-opening anchor point, in-situ nucleation of quantum dots and generation of surface sulfur vacancies.

The invention provides a carbon-coated nickel-chromium catalyst with an external sulfur source and a preparation method and application thereof, and the preparation method comprises the following steps: A) dissolving and mixing a nickel source, a chromium source and a carbon source in water, and removing a solvent to obtain a precursor; b) pyrolyzing the precursor in a protective atmosphere to obtain a catalyst precursor; and C) mixing the catalyst precursor with a sulfur source solution to obtain the carbon-coated nickel-chromium catalyst with the additional sulfur source, a sulfur source in the sulfur source solution comprises one or more of dimethyl sulfoxide, thioacetamide, thiourea, dimethyl disulfide, dimethyl sulfide and p-fluorothiophenol. According to the invention, a pre-sulfurization strategy of adding an organic sulfur source is innovatively adopted, so that the catalyst is endowed with low-temperature high efficiency, high selectivity and strong engineering suitability, and a bottom layer support is provided for kiloton-level industrial amplification.

This invention belongs to the field of catalytic material synthesis technology, specifically referring to a composite material based on red mud modification and its preparation method. The red mud-modified composite material includes the following raw materials in parts by weight: 0.3-0.5 parts red mud, 0.05-0.1 parts thioacetamide, 0.3-0.6 parts straw, 0.03 parts CTAB, 0.05 parts silane coupling agent, 0.04-0.06 parts polyvinyl alcohol, 0.05-0.08 parts PVP, 0.2-0.3 parts citric acid, and 20 parts alcohol solution. Using red mud as the core, the material is prepared by acid leaching followed by co-calcination with thioacetamide (TAA) and straw under an inert atmosphere. This process achieves iron reduction, pore formation, and atomic doping. The modified material surface becomes positively charged, enabling it to strongly adsorb anionic pollutants and degrade them in situ under visible light through photo-Fenton degradation, thus realizing an integrated wastewater treatment function of "adsorption-enrichment-degradation-regeneration".

This invention provides a method for constructing a liver injury model in largemouth bass and its application, belonging to the field of aquatic pharmaceuticals. The construction method includes the following steps: 1) Intraperitoneal injection of thioacetamide into largemouth bass at a dose of 100-150 mg / kg body weight, once; 2) Obtaining the model after 6-15 days of conventional rearing. This invention enables model creation with a short cycle, low cost, good reproducibility, and simple operation, solving the problem of high animal mortality in existing technologies for creating acute liver injury models.

The invention discloses a preparation method and application of a rare earth doped vanadium disulfide electro-hydrogen evolution catalyst, and belongs to the technical field of electro-catalytic hydrogen production. According to the method, ammonium metavanadate is used as a precursor, thioacetamide is used as a sulfur source, rare earth chloride is used as a doping agent, and the rare earth doped VSpowder is prepared through a hydrothermal reaction under the assistance of polyvinylpyrrolidone. The obtained catalyst is of a flower-shaped nanosheet array structure, rare earth elements are evenly distributed in crystal lattices, the high conductivity of a 1T phase structure is kept, and the adsorption free energy of hydrogen atoms is optimized. Compared with an undoped VS, the catalyst shows lower overpotential and better reaction kinetics in a water electrolysis hydrogen evolution reaction, and the overpotential of a sample doped with 1.5% of Ce is as low as 150mV when the sample is-10mA. Cm. The method is simple in process and low in cost, and the obtained catalyst is high in stability, has wide application prospects and can be applied to the fields of hydrogen production through water electrolysis of new energy and the like.

The application discloses a preparation method of copper sulfide nanomaterial. The method comprises the following steps: dissolving sodium polyacrylate in deionized water, stirring for 20-30 min, and adding isopropyl alcohol dropwise to obtain a sodium polyacrylate ball solution; then adding a copper salt solution to the sodium polyacrylate ball solution, and obtaining PAAS / Cu(OH)2 NPs after reaction; dispersing the PAAS / Cu(OH)2 NPs in deionized water, adding a sulfur source, and reacting in a constant-temperature water bath at 60-80 DEG C under stirring for 30-60 min to obtain copper sulfide nanomaterial; and the sulfur source is sodium thiosulfate or thioacetamide. The application has the advantages of mild reaction condition, fast preparation, uniform particle size, beautiful appearance, good photothermal stability and the like.

This invention relates to the field of biomedical technology, and in particular to a method for preparing and applying a nanomedicine for treating deep endometriosis. The method involves mixing ferrous ammonium sulfate, trisodium citrate, and polyethyleneimine, then adding thioacetamide and triethanolamine via a solvothermal reaction to obtain two-dimensional iron sulfide nanosheets. Dopamine hydrochloride is then added and stirred at room temperature in anhydrous ethanol to obtain polydopamine-coated iron sulfide (FP). FP is then mixed with larotrectinib and anhydrous ethanol to obtain the nanomedicine FPL for treating deep endometriosis. The synthesis method of this invention is simple and highly operable; the product is stable and reproducible; FPL exhibits good biocompatibility and biodegradability. After entering the microenvironment of deep endometriosis lesions, it can responsively release larotrectinib, effectively inhibiting the Trk signaling pathway and significantly reducing the degree of nerve infiltration; simultaneously, the anti-inflammatory effect of the FP carrier alleviates the local inflammatory response, jointly inhibiting lesion progression.

The invention relates to the technical field of photocatalytic material preparation, in particular to a nickel / cadmium manganese sulfur modified photocatalytic material and a preparation method thereof.The preparation method comprises the following steps that S1, manganese acetate tetrahydrate, cadmium acetate dihydrate and thioacetamide are dissolved in a mixed solvent of deionized water and ethidene diamine, and a mixed solution is obtained; s2, reacting the mixed solution obtained in the step S1 to obtain a primary product; s3, carrying out acid treatment and heating treatment on the natural zeolite in sequence; s4, putting the natural zeolite treated in the step S3 into a nickel chloride hexahydrate aqueous solution to obtain natural zeolite loaded with nickel ions; and S5, adding the natural zeolite loaded with the nickel ions obtained in the step S4 into an ethanol water solution containing sodium chloride, and adding the primary product to react to obtain the photocatalytic material. The photocatalytic material prepared by the method is uniform in loading and free of agglomeration, and the catalytic effect of the photocatalytic material is effectively improved.

This invention discloses a chiral CuO / HgS heterojunction catalyst, its preparation method, and its application, belonging to the field of inorganic chiral materials technology. The chiral CuO / HgS heterojunction includes D-CuO / D-HgS heterojunction, L-CuO / L-HgS heterojunction, D-CuO / L-HgS heterojunction, and L-CuO / D-HgS heterojunction. Its preparation method includes: (1) preparing chiral CuO powder using a liquid-phase synthesis method with chiral cysteine ​​and CuCl2; (2) obtaining chiral HgS crystal nuclei by reacting Hg(NO3)2 solution with chiral penicillamine and thioacetamide, and dispersing them in water to obtain chiral HgS seed colloids; (3) synthesizing chiral CuO / HgS heterojunctions using a seed-mediated epitaxial growth method. Using the prepared chiral material for photocatalytic CO2 reduction can yield high-value-added C2 and C3 products, achieving efficient energy utilization.

The application discloses a preparation method of a hydrogen molybdenum bronze-sulfur indium zinc composite photocatalyst and belongs to the technical field of nanometer material preparation. Sodium molybdate is used as a precursor, is dispersed in water, nitric acid is added, and molybdenum trioxide is obtained through aging; then the molybdenum trioxide is dispersed in water, zinc sulfate, indium nitrate and thioacetamide are added, and MoO3-ZIS is obtained through hydrothermal reaction; the obtained MoO3-ZIS is added into an aqueous nitric acid solution, and H x MoO3-ZIS composite is generated through irradiation. The preparation method of the hydrogen molybdenum bronze-sulfur indium zinc composite photocatalyst is simple in preparation process, convenient in operation, high in yield, and stable in product performance.

The application discloses a Mo-doped NiS micrometer flower electrocatalyst and a preparation method and application thereof, and adopts a one-step hydrothermal-solvothermal method to synthesize a NiS micrometer flower self-supporting electrocatalyst on an industrial metal substrate, namely a porous nickel mesh; firstly, ammonium molybdate tetrahydrate and thioacetamide are simultaneously added into anhydrous ethanol, a small amount of amino carboxylate complexing agent promoting surface growth is added, and a uniform solution is obtained by stirring; a clean porous nickel mesh is immersed into the solution to perform a hydrothermal reaction; and after being cleaned and dried, a Mo-doped NiS micrometer flower structure electrocatalyst is obtained; the method has the characteristics of mild reaction conditions, simple operation, no need of harsh reaction conditions and realization of mass production; the surface morphology of the prepared electrocatalyst is a composite structure of micrometer flowers and nanoparticles grown on the porous nickel mesh; and the material has excellent performance as an alkaline electrocatalytic water splitting hydrogen production catalyst under a large current density.

The invention relates to the technical field of inorganic and organic nano composite materials, and discloses preparation and application of a sulfur vacancy regulated Zn0. 5Cd0. 5S / MIL-68 (In)-NH2 composite material, firstly, MIL-68 (In)-NH2 microrods are synthesized, then the MIL-68 (In)-NH2 microrods are dispersed in deionized water, Zn (NO3) 2.6 H2O, Cd (NO3) 2.4 H2O and thioacetamide are sequentially added, sulfur vacancy is introduced through hydrazine hydrate, the sulfur vacancy regulated Zn0. 5Cd0. 5S / MIL-68 (In)-NH2 composite material is obtained, and the sulfur vacancy regulated Zn0. 5Cd0. 5S / MIL-68 (In)-NH2 composite material is prepared. The catalyst is used for converting light energy into chemical energy under sunlight to realize preparation of chemical energy H2O2 and treatment of MBT wastewater. The prepared composite material has good light absorption performance and light energy conversion activity.

This invention relates to the field of sodium-ion battery anode material technology, and discloses a cobalt vanadium sulfide / graphene three-dimensional composite aerogel and its preparation method, comprising: mixing cobalt salt, vanadium salt, urea, thioacetamide and water and reacting at high temperature to obtain cobalt vanadium sulfide; mixing cobalt vanadium sulfide, graphene oxide (GO) dispersion, multi-walled carbon nanotubes and polyvinyl alcohol solution for pre-crosslinking; then adding ascorbic acid and high-temperature hydrothermal molding to obtain composite hydrogel; solvent displacement and freeze-drying of composite hydrogel to obtain composite aerogel; and finally calcining under an inert atmosphere to obtain the product. The three-dimensional aerogel framework of this invention can uniformly and confinedly disperse cobalt vanadium sulfide, inhibiting the agglomeration of nanoparticles; the interconnected three-dimensional pore structure can provide rapid diffusion channels for electrolytes / reactants, shortening the ion and molecule transport distance, significantly improving the material mass transfer efficiency, and exhibiting superior reaction kinetics in energy storage, catalysis, adsorption and other applications.

The invention belongs to the field of new energy and electrochemical catalysis, and particularly relates to a Pd / S-SnO2 (at) BTAB / PPy / GO nano material, a preparation method thereof and application of the Pd / S-SnO2 (at) BTAB / PPy / GO nano material in electro-catalysis of air to synthesize nitrate. The preparation method comprises the following steps: adding PPy / GO nanosheets, 1, 4-dibromobutane and KOH into DMF (Dimethyl Formamide), dispersing, stirring to react, centrifuging, washing, adding triethylamine, centrifuging, washing, drying, and grinding to obtain BTAB / PPy / GO; the preparation method comprises the following steps: dispersing BTAB / PPy / GO in water, adding K2PdCl6, SnCl4. 5H2O and thioacetamide, uniformly stirring, carrying out a hydrothermal reaction, washing, centrifuging and drying to obtain the Pd / S-SnO2 (at) BTAB / PPy / GO nano material. The palladium site is an actual catalytic center of NOR, and shows excellent stability and selectivity in the reaction process. Besides, the invention not only provides an environment-friendly and efficient way for the production of nitrate, but also solves the problems of high energy consumption and high emission in the traditional method, and has important industrial application prospects.