202 results about "Thioacetamide" patented technology

The invention relates to a low-temperature graphite negative electrode material and a preparation method thereof, and belongs to the technical field of high polymer materials. According to the prepared low-temperature graphite negative electrode material, firstly, the surface of graphite is pre-oxidized through potassium persulfate, phosphorus pentoxide and concentrated sulfuric acid, and then under the action of sodium nitrate, potassium permanganate and hydrogen peroxide, graphite oxide is prepared; then, ammonium molybdate hydrate and thioacetamide are used as a molybdenum source and a sulfur source, graphite oxide is used as a supporting material, a molybdenum disulfide-graphite compound is synthesized, and the conductivity and the cycling stability are improved; secondly, the surface of the negative electrode is coated with amorphous resin carbon / nickel oxide, so that the ion diffusion efficiency of the low-temperature graphite negative electrode material is enhanced, and the electrochemical lithium storage performance is improved in a low-temperature environment; and finally, the surface of the amorphous resin carbon / nickel oxide is coated with a layer of polythiophene film, so that the rate capability of the negative electrode material is improved due to large surface area and high pores.

The invention provides a method for promoting acquisition of clean fuel by light / sound concerted catalytic degradation of waste plastics and upgrading and conversion thereof, which comprises the following steps: uniformly mixing g-C3N4, cadmium acetate and thioacetamide according to a predetermined proportion, pouring into a reaction kettle, placing in a high-temperature oven for a predetermined time, centrifuging, cleaning and drying to obtain a catalyst, the method comprises the following steps: loading a catalyst on the surface of aerogel, hydrogel or non-woven fabric to obtain an MTSJA-loaded catalyst, treating waste plastic with NaOH, adding the MTSJA-loaded catalyst, stirring under irradiation of a xenon lamp, starting ultrasound for reaction, and carrying out light / sound synergistic catalytic degradation on the waste plastic. According to the method, energy consumption is not needed, toxic and harmful gas is not generated, the purposes of energy conservation and environmental protection can be achieved, meanwhile, carbon dioxide in water can be catalytically reduced to generate clean energy such as methane in the process of degrading the waste plastic, and further obtaining of the energy is promoted.

The invention discloses a method for synthesizing a Mn0. 43Cd0. 57S / Cu2MoS4 photocatalyst by adopting a solvothermal method, and belongs to the technical field of catalysts. The preparation method comprises the following steps: preparing copper molybdenum sulfide by using cuprous oxide as a template, synthesizing copper molybdenum sulfide with high purity and good crystallinity by combining a solvothermal method, preparing manganese cadmium sulfide by using manganese acetate, cadmium acetate, sodium hydroxide and thioacetamide as raw materials, adding copper molybdenum sulfide before a hydrothermal reaction, successfully modifying the manganese cadmium sulfide by constructing a heterojunction, and preparing the copper molybdenum sulfide modified manganese cadmium sulfide. The Mn0. 43Cd0. 57S / Cu2MoS4 photocatalyst is synthesized, and the photocatalytic hydrogen production rate of the cadmium manganese sulfide is improved. Moreover, the hydrogen production rate of the Mn0. 43Cd0. 57S / Cu2MoS4 photocatalyst prepared by the invention can reach 8233 mu mol / (g.h), which is 2.08 times of the hydrogen production rate of pure cadmium manganese sulfide, and 1.24 times of the hydrogen production rate of cadmium manganese sulfide loaded with 1% platinum.

The invention discloses a near-infrared light response ultrathin nanosheet sulfur-doped BiOCl photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of photocatalytic materials. The preparation method comprises the following technical steps: (1) preparing a BiOCl nanosheet; and (2) preparing the sulfur-doped BiOCl nanosheet. By adopting a secondary hydrothermal method and controlling the dosage of thioacetamide and BiOCl nanosheets, the prepared catalyst is an ultrathin nanosheet with uniform morphology, the average size is 70-120nm, the catalyst has light response in a near-infrared light region of 780-1200nm, the light absorption capacity of the catalyst is better, and near-infrared light response can be achieved. The catalyst is applied to catalytic degradation of ENR, the ENR degradation rate under visible light is 66.87%, and the degradation effect is good; under near-infrared light, the ENR degradation rate is 9.25%, and the degradation performance from zero to existence is achieved. The preparation method disclosed by the invention is simple, mild in condition, easy to control, low in raw material consumption, free of complex operations such as centrifugation, low in preparation cost and easy to popularize and apply.

The invention discloses a method for yeast-assisted synthesis of porous carbon / vanadium sulfide nano-enzyme and application of the porous carbon / vanadium sulfide nano-enzyme in serum creatinine detection, and belongs to the technical field of serum creatinine detection. Comprising the following steps: (1) mixing saccharomycetes, vanadium chloride and ethanol, performing ultrasonic dispersion, and stirring until liquid is completely volatilized to obtain a first solid A; (2) mixing and grinding the first solid substance A, potassium carbonate and potassium chloride to obtain a second solid substance B; (3) respectively placing the second solid substance B and thioacetamide in grooves at the left end and the right end of a Joule thermal device graphite sample table, and carrying out rapid Joule thermal shock to obtain a third solid substance C; and (4) washing and drying the third solid C to obtain the porous carbon / vanadium sulfide nano-enzyme. A colorimetric sensing method is constructed based on the nano-enzyme prepared by the invention, is used for creatinine detection, and has extremely low detection limit, LOD is as low as 0.07 M / mL, and high specificity and sensitivity are embodied.

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 belongs to the technical field of aquaculture, and relates to a thioacetamide-induced procambarus clarkii hepatopancreas injury model construction and evaluation method and application thereof, and the method comprises the following steps: selecting healthy and temporarily cultured procambarus clarkii with the weight of 10.0 + / -1.45 g as an object for establishing the hepatopancreas injury model; fasting the procambarus clarkii for 12 hours, and then giving a thioacetamide solution, wherein the application dosage is 0.4-0.8 mg / g body weight; the thioacetamide is a thioacetamide solution which is prepared from a 0.9 wt% NaCl solution and has the concentration of 40 to 80 mg / mL; the mode of administration of the thioacetamide solution is intramuscular injection. The TAA is applied to construction of the hepatopancreas injury model of the procambarus clarkia for the first time, individual death is not induced in the model construction process, and an ideal experimental model capable of researching pathogenesis of hepatopancreas diseases and screening related therapeutic drugs is obtained. The method has the advantages of being short in period, low in cost, easy to operate, good in repeatability and the like.

The invention relates to the technical field of PE pipes, in particular to a PE pipe and a preparation method thereof. The PE pipe is prepared from, by weight, 40-60 parts of polyethylene, 6-8 parts of filler, 4-6 parts of auxiliaries, 4-6 parts of silicon dioxide, 2-4 parts of stabilizer and 2-4 parts of antioxidant. According to the invention, the filler is added in the preparation process of the PE pipe, and the coconut shell forms a porous carbon structure after being carbonized and ground, so that the interface bonding force between the materials can be effectively enhanced, and the coconut shell is uniformly dispersed in a PE matrix to bear part of external force and play a role in structure enhancement; thiomolybdate ions generated by thioacetamide and sodium molybdate can uniformly precipitate and grow on the surface and in pores of the coconut shell powder, and are tightly combined with the coconut shell powder, so that the structural stability of the PE pipe is effectively improved.

The invention relates to the technical field of benzamide, in particular to a preparation process of 4-hydroxythiobenzamide, which comprises the following steps: S1, preparing raw materials: preparing the 4-hydroxythiobenzamide from the following raw materials in parts by weight: 80-100 parts of formic acid, 80-100 parts of hydrochloric acid, 20-30 parts of 4-hydroxybenzaldehyde, 8-12 parts of hydroxylamine hydrochloride, 8-12 parts of thioacetamide and 4-6 parts of sodium hydroxide. According to the preparation method, after 4-hydroxybenzaldehyde is subjected to activating treatment reaction, part of positive charges on aldehyde carbon are dispersed, oxygen atoms in an acetal structure are connected with the aldehyde carbon through covalent bonds to generate an electron withdrawing induction effect, the reaction sequence and the reaction path of the 4-hydroxybenzaldehyde can be controlled through aldehyde activation, and the reaction efficiency of the 4-hydroxybenzaldehyde is improved. Therefore, the generation of byproducts is reduced, and the purity of a reaction product obtained from 4-hydroxybenzaldehyde is improved.

The invention belongs to the technical field of solid waste recycling and organic wastewater treatment, and particularly relates to a method for treating organic wastewater by utilizing a composite material constructed by waste lithium iron phosphate to activate peroxymonosulfate. The method comprises the following steps: carrying out pyrolysis treatment on a waste lithium iron phosphate battery positive electrode material, and collecting a waste lithium iron phosphate SLFP powder material; preparing the SLFP into a uniform solution; sodium molybdate dihydrate and thioacetamide are added into the solution for a hydrothermal reaction, and a composite catalyst material SLFP-MoS2 is prepared; putting the catalyst into the wastewater to achieve adsorption equilibrium; and adding peroxymonosulfate to trigger an oxidation reaction, and removing organic pollutants in the solution. The SLFP-MoS2 catalyst provided by the invention can realize mutual promotion of Fe-Mo bimetal active sites, ensures stable circulation of iron ions and molybdenum ions in a local microenvironment, further activates peroxymonosulfate (PMS) to generate active species, and realizes effective removal of organic pollutants in wastewater.

The invention discloses a flotation reagent for high-sulfur lead-zinc ore in a low-alkali environment, and is characterized in that the flotation reagent comprises a zinc activation combined reagent and a zinc combined collector, the zinc activation combined reagent is composed of copper sulfate and thioacetamide or ammonium dithiocarbamate, and the zinc combined collector is composed of zinc sulfate and ammonium dithiocarbamate. The zinc combined collecting agent is composed of ethyl thiocarbamic acid-O-ester and N, N-diethyl dithiocarbamic acid sodium salt, and the zinc combined collecting agent is composed of ethyl thiocarbamic acid-O-ester and N, N-diethyl dithiocarbamic acid sodium salt. In addition, the invention provides a flotation method for high-sulfur lead zinc ore in a low-alkali environment, so that efficient activation of marmatite and accurate separation of marmatite and pyrite are realized by using the zinc combined activating agent and the zinc collecting agent in a new process, the content of pyrite in zinc concentrate is reduced, and the recovery rate and grade of zinc in the zinc concentrate are improved.

The invention discloses preparation and application of a yolk-shell structure body phase hydrodesulfurization catalyst based on hydrogen overflow, and the preparation method comprises the following steps: (1) adding nickel nitrate hexahydrate into an aqueous solution of glycerol, isopropanol and deionized water, and carrying out solvothermal reaction on a green solution to obtain a solid spherical nickel composite precursor; (2) mixing the nickel composite precursor with an ethanol solution of thioacetamide, and adding an ammonium heptamolybdate aqueous solution to obtain a turbid liquid; and performing solvothermal reaction on the turbid liquid to obtain the yolk-shell structure catalyst. The yolk-shell structure catalyst with rich NiMoS phases is controllably derived by adopting a limited range vulcanization coupling in-situ intercalation strategy. Under the action of confinement vulcanization, organic molecules are intercalated in situ and assist in constructing stable 1T-MoS2 with short plate length and low stacking, so that full exposure of rim sites is promoted. According to the catalyst, an inner core NiS2 is used as an auxiliary active phase to trigger a hydrogen overflow effect, and cooperation of double active phases is promoted through an egg yolk-shell structure, so that ultra-deep desulfurization of an oil product is realized.

The invention belongs to the technical field of preparation of antibacterial and anti-inflammatory nanoparticles, and particularly relates to a preparation method of magnetocaloric nanoparticles based on piezoelectric catalytic molybdenum disulfide nanoflowers, and the preparation method comprises the following steps: S1, preparing MoS2; in the step S1, MoS2 is prepared by the following steps: weighing 1.235 g of ammonium molybdate and 1.052 g of thioacetamide, dissolving the ammonium molybdate and the thioacetamide in 20 mL of deionized water, and uniformly stirring to obtain a colorless transparent solution; transferring into a 50mL high-pressure reaction kettle, and reacting at 220 DEG C for 8 hours; and repeatedly washing with distilled water and absolute ethyl alcohol for multiple times, and carrying out vacuum drying on the product at 60 DEG C for 48 hours to obtain MoS2. According to the novel antibacterial nano material integrating MHT, PCT and enzyme activity, the synergistic effect of each single treatment means is enhanced, multiple antibacterial effects are achieved, and the treatment efficiency of bacterial pneumonia is improved.

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.

The application discloses a graphene quantum dot / indium sulfide electromagnetic wave absorbing material and a preparation method thereof, and comprises the following steps: carrying out a hydrothermal reduction reaction on trinitro-pyrene and an alkaline solution to obtain graphene quantum dot powder rich in hydroxyl functional groups on the surface; and carrying out a hydrothermal reaction on a mixture of indium chloride tetrahydrate and thioacetamide and the graphene quantum dot powder to obtain a graphene quantum dot / indium sulfide heterojunction electromagnetic wave absorbing material with a sulfur vacancy concentration of 3.8% to 5.7%. The addition amount of the sulfur source is controlled by regulating the addition amount of the thioacetamide in the hydrothermal reaction process, the introduced sulfur vacancy concentration is accurately controlled, the In-O covalent bond is formed at the interface between the graphene quantum dot and the indium sulfide, the interface covalent bridging structure is formed, the interface charge transfer efficiency is accelerated, the built-in electric field in the interface is enhanced, stronger interface polarization loss is induced, and the performance of high absorption intensity and wide bandwidth of the composite wave absorbing material is realized.

The present invention discloses a preparation method of a single-atom coordinated composite photoelectrocatalyst, which utilizes non-metal defects (sulfur / oxygen vacancies) and an amorphous substrate to synergistically anchor variable-valence single atoms and in-situ growth strategies and methods such as solvothermal method to achieve the coordination and composite of Bi2S3-S V and Co-N4-C. Through the liquid-phase sulfidation method, thioacetamide is used as a sulfur source to in-situ generate Bi2S3-S V , and by regulating the sulfur source ratio and reducing the concentration of thioacetamide, sulfur defects are directly introduced during the sulfidation process. Then, combined with the annealing process, Co single atoms are promoted to migrate to the Bi2S3-S V interface to form Co-S y coordination, while retaining the Co-N4 coordination within the N-C framework, constructing a unique Bi2S3-S V / Co-N4-C composite photoelectrocatalyst with the synergistic effect of sulfur vacancies and Co single-atom double coordination to achieve efficient photoelectrocatalytic hydrogen production and coupling reactions such as formaldehyde oxidation.

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.

The present invention belongs to the field of photocatalyst technology, and specifically relates to a fluorine-modified ZnS photocatalyst method, its preparation method and application. The method is to dissolve zinc chloride, thioacetamide and NaF in water, stir to obtain a mixed solution, and then subject the mixed solution to a hydrothermal reaction. After the reaction is completed, the solution is cooled to room temperature, washed with water, centrifuged, dried, and ground to finally obtain a fluorine-modified ZnS photocatalyst. The present invention performs a one-pot hydrothermal method on a precursor solution of doping ions and ZnS, so that F ions are uniformly doped with ZnS. The doping of F ions is beneficial to the conduction of electrons, effectively reduces the recombination rate of electron holes, and at the same time changes the energy band position of ZnS, significantly improves the charge separation efficiency, improves the carrier migration efficiency, and thus improves the photocatalytic efficiency. The preparation method of the fluorine-modified ZnS photocatalyst of the present invention is simple, low in cost and has good photocatalytic activity, and is a new type of photocatalyst that can be practically applied.

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 discloses a landfill leachate electrocatalytic plate in the field of electrocatalytic technology, a preparation method and an application thereof. After the surface of a titanium substrate is activated, ruthenium, iridium, copper and cobalt metal elements are introduced, and thioacetamide and 2-methylimidazole are used to form sulfur and nitrogen doping, and finally a multi-element heterojunction structure is formed on the titanium substrate. The catalytic activity of the electrocatalytic plate can be improved, the electrocatalytic plate has high pH stability and corrosion resistance, can adapt to long-term operation, and has strong recyclability and sustainability.

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 discloses multivalent high-entropy sulfide, a preparation method thereof and application of the multivalent high-entropy sulfide as an electrocatalyst, and belongs to the technical field of high-entropy transition metal sulfide. The preparation method comprises the following steps: dissolving a plurality of metal nitrates in isopropanol and glycerol according to the concentration of equal molar ratio by adopting a solvothermal method, carrying out solvothermal reaction, filtering and washing to obtain a metal glycerol precursor; the method comprises the following steps: dissolving a metal glycerol precursor and thioacetamide in ethanol, carrying out solvothermal reaction, cooling, centrifuging, washing and drying to obtain the multivalent high-entropy sulfide. The multivalent high-entropy sulfide which is simple in synthesis method, stable in structure and easy in raw material obtaining is obtained and can serve as an electrocatalyst to be applied to electrocatalytic nitrate reduction synthesis of ammonia, and a foundation is laid for developing other high-entropy transition metal sulfide serving as an electrocatalyst for electrocatalytic nitrate wastewater synthesis of value-added chemicals.