158 results about "Thioacetamide" patented technology

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 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 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 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.

The invention discloses a zirconium-doped nickel sulfide self-supporting electrode material, a preparation method thereof, and an application thereof. The method comprises the following steps: step 1, adding 0.5-3 mmol of zirconium nitrate pentahydrate and 1.5-9 mmol of thioacetamide to a beaker containing 20 mL of anhydrous ethanol, and stirring evenly to obtain a mixed solution A; step 2, firstly transferring the mixed solution A dropwise to a polytetrafluoroethylene liner, then placing 1.5 cm×4 cm×0.2 cm of pure nickel foam into the polytetrafluoroethylene liner containing the mixed solution A, then sealing the polytetrafluoroethylene liner and placing it in an autoclave, finally placing the autoclave in an oven, heating the temperature from room temperature to 120-180° C. at a heating rate of 5° C. / min, and keeping the temperature until the reaction is fully completed; step 3, after the heat preservation is completed, allowing the autoclave to cool naturally to room temperature, taking out the product, cleaning it, and standing it at room temperature. After the product is completely dried, Zr-Ni 0.96 S / NF has excellent catalytic performance for water electrolysis.

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 present invention discloses a Mo-Co-V-S microtube material, a preparation method thereof and an application thereof. The Mo-Co-V-S microtube material comprises a hollow microtube containing Mo, Co, V and S elements and nano-sheets densely distributed on the surface of the hollow microtube. The preparation method of the microtube material is as follows: rod-shaped MoO3 is dispersed in an alcohol solvent, and then cobalt nitrate, an alcohol solution of 2-methylimidazole and NaVO3 are successively added. After stirring and reacting, the precipitate is taken by centrifugation to obtain rod-shaped MoO3@ZIF-67@NaVO3; the rod-shaped MoO3@ZIF-67@NaVO3 is dispersed in an organic solvent to obtain a suspension, and thioacetamide is added to the suspension. After solvothermal reaction, the precipitate is taken by centrifugation to obtain the microtube material. The microtube material can be applied to the preparation of a positive electrode material for a supercapacitor and has excellent electrochemical performance. The preparation method of the microtube material is simple, controllable, low in cost and pollution-free to the environment.

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 present invention discloses a novel composite heterojunction photocatalyst, a preparation method thereof, and its application in carbon dioxide reduction. The photocatalyst is prepared by a hydrothermal method using WCl6 as the tungsten source, thioacetamide (TAA) as the sulfur source, cobalt phthalocyanine as the CoPc source, phosphoric acid (H3PO4) as the phosphoric acid source, and deionized water (H2O) as the solvent. The prepared (CoPc-P / WS2) photocatalyst has a spherical structure with a diameter of about 500 nm, and the surface contains rich functional groups, and it exhibits excellent photocatalytic CO2 reduction activity under visible light.

The invention discloses a preparation method of a febuxostat intermediate, and relates to the technical field of chemical synthesis of medicines, cyanophenol and thioacetamide are catalyzed by polyphosphoric acid, zinc chloride and Bi (OTf), and a reaction solution is subjected to impurity removal and centrifugation to obtain a centrifugal wet product; 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylic acid ethyl ester reacts with 2-chloroacetoacetic acid ethyl ester to obtain 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylic acid ethyl ester, and finally 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylic acid ethyl ester reacts with hexamethylenetetramine under the action of p-toluenesulfonic acid and concentrated sulfuric acid to obtain the febuxostat intermediate product. The reaction period is greatly shortened, the production cost is reduced, and the yield and the purity of the product are improved.