28 results about "Polythiocyanogen" patented technology

The invention relates to a composite nanodot loaded porous carbon nitride photocatalyst as well as a preparation method and application thereof, and the preparation method comprises the following steps: calcining a precursor formed by mixing melamine, cyanuric acid and trithiocyanuric acid to obtain porous carbon nitride, and loading cobalt oxide nanodots and nickel nanodots on the porous carbon nitride in two steps, the composite nanodot loaded porous carbon nitride photocatalyst with excellent visible light catalytic hydrogen production performance is obtained; when the composite nanodot loaded porous carbon nitride photocatalyst obtained by the method is used for photocatalytic hydrogen production, an activity test result shows that the activity of the photocatalyst prepared by the method is improved by 222.5 times compared with that before modification; the preparation method disclosed by the invention has the advantages of high reaction efficiency and good performance of the obtained photocatalyst, and has a wide application prospect.

The invention provides a metal plate frame and fluororubber sealing assembly and a preparation method thereof, and the preparation method is applied to the technical field of semiconductor sealing and comprises the steps that S1, a metal plate frame is coated with an adhesive, dried and then cooled, and the adhesive is a trithiocyanuric acid derivative solution; s2, a cross-linking agent and an addition agent are added in the thin-passing mixing process of the perfluoroether elastomer, a mixed rubber compound is obtained, the addition agent comprises fluorinated silicon dioxide, fluorinated titanium dioxide or PFA micro powder, and the mass of the addition agent is 2-10% of the mass of the perfluoroether elastomer; and S3, the mixed rubber sheet is placed in a metal plate frame, the metal plate frame with the mixed rubber sheet is placed in a mold to be subjected to hot pressing vulcanization forming, then secondary vulcanization is conducted, then radiation vulcanization is conducted, and the assembly is obtained. The assembly prepared through the method is resistant to plasma etching and high in cleanliness, the bonding performance of the perfluoroether rubber and the metal plate frame is good, and the rate of finished products is high.

The invention relates to the technical field of sewage treatment in environmental protection, in particular to a high-valence metal cation composite remover and a use method of the high-valence metal cation composite remover. The polyhydroxy compound, the polycarboxyl compound and the polyamido compound are one or more than two of dithiomethyl carbamate, dithioethyl carbamate, dithiopiperazine dicarboxylate, trithiocyanate, hyperbranched vinylamine dithiocarbamate and dodecyl sulfonate, and the polyhydroxy compound, the polycarboxyl compound and the polyamido compound are one or more than two of dithiomethyl carbamate, dithioethyl carbamate, dithiopiperazine dicarboxylate, trithiocyanate, hyperbranched vinylamine dithiocarbamate and dodecyl sulfonate; the inorganic matter is one or more than two of silicate, phosphate and carbonate. According to the method, after the ammonia water is added, the composite removing agent is added for reaction and precipitation, the method has the advantages that the technological process is simple, the agent adding amount is small, the removal rate of high-valence metal cations reaches 99.9% or above, the operation cost is low, the pH value in the process is low, ammonia volatilization waste is inhibited and controlled, and the problems of safety and environmental protection are solved, and the method is suitable for industrial production.

The application discloses a low-alkalinity inhibitor for pyrite in secondary copper-sulfur ore and a method. The method comprises the following steps: adding trisodium trithiocyanate in the process of ore grinding; and adding a second inhibitor to adjust the pH value of the ore slurry to 9.5-10.5 in the process of flotation. The second inhibitor is calcium oxide and an organic copolymer, the organic copolymer is an acrylamide-acrylic acid-maleic anhydride copolymer, and the molecular weight of the organic copolymer is 5000-10000. The method can reduce the activation of copper ions on pyrite, realize low-alkalinity inhibition of pyrite, and avoid problems such as high pH value of mineral processing waste water, easy pipe blockage, and low recovery rate of precious metals.

The application discloses a preparation method of a nitrogen-containing heterocyclic compound and an alkali metal salt of the nitrogen-containing heterocyclic compound, and steps of the preparation method of the nitrogen-containing heterocyclic compound comprise: (1) uniformly mixing trithiocyanic acid with a first solvent, introducing sulfuryl fluoride gas or adding an alkenyl sulfonyl fluoride to perform a reaction, and obtaining a crude product through a crude treatment after the reaction is finished; (2) purifying the crude product to obtain the nitrogen-containing heterocyclic compound shown in a structural formula 1; wherein R1, R2 and R3 are each independently selected from -H, -SO2F or -CH2-(CH2) n -SO2F, n is an integer selected from 1-10, and R1, R2 and R3 are not H at the same time. The preparation method of the nitrogen-containing heterocyclic compound and the alkali metal salt of the nitrogen-containing heterocyclic compound can be applied to a large amount of trithiocyanic acid in a lithium battery electrolyte, raw materials are easy to obtain, operation is simple, the yield is high, the condition is mild, the requirement for equipment is low, and the method is suitable for industrial production.

The application provides a preparation method of a biomimetic flagelliform nanowire and relates to the technical field of nanowire material preparation. The method comprises the following steps: mixing and immersing a trithiocyanic acid solution and copper hydroxide nanowires, and obtaining immersed nanowires after drying; the immersion conditions comprise the following steps: the temperature is 20-45 DEG C, and the time is 0.01-50 min; and the obtained immersed nanowires are calcined at 250-500 DEG C for 2-6 h. The method provided by the application uses a trithiocyanic acid solution to immerse Cu(OH)2 nanowires, and then calcines in a muffle furnace. The method provided by the application is simple in operation, the prepared nanowires are uniform and controllable in morphology, and can be applied to the fields of oil-water separation, battery negative electrode current collectors, adsorption and the like.

The invention discloses an amorphous copper-trithiocyanuric acid coordination polymer as well as a preparation method and application thereof, and belongs to the technical field of functional materials and biomimetic catalysis. The polymer does not have a long-range ordered structure, and the copper element takes cuprous as a main existence valence state. The preparation method comprises the following steps: carrying out surface coordination reaction on cuprous oxide serving as a template and trithiocyanuric acid to form a core-shell intermediate, removing the template through acid etching, and reconstructing to obtain the final amorphous coordination polymer. The material simultaneously has high-efficiency peroxidase-like and glutathione-like oxidase double-enzyme activity, can synergistically catalyze hydrogen peroxide to generate hydroxyl radicals and consume glutathione, and can remarkably kill cancer cells by inducing a copper death mechanism in a tumor microenvironment. The material is unique in structure and excellent in catalytic performance, the preparation method is simple, convenient and controllable, and the material has wide application prospects in the fields of tumor catalytic treatment, bionic sensing and the like.

This invention belongs to the field of water treatment technology, specifically relating to a trithiocyanate-coupled graphene oxide composite material, its preparation method, and its application. To more efficiently and selectively separate and enrich copper ions in wastewater, this invention provides a trithiocyanate-coupled graphene oxide composite material, obtained by covalently coupling trithiocyanate and graphene oxide through a nucleophilic substitution reaction. This composite material exhibits excellent adsorption and removal efficiency for copper ions in complex aqueous systems with both single and multiple components, while showing minimal adsorption of other metal ions such as gallium, silver, indium, cobalt, and neodymium. Furthermore, after multiple adsorption-desorption cycle tests, the composite material maintains a high metal ion removal rate, demonstrating excellent structural stability and regeneration performance. Therefore, this composite material holds promise for the selective separation and enrichment of copper ions in complex aquatic environments, possessing excellent prospects for industrial application.

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

The embodiment of the invention relates to a preparation method and application of a nitrogen-sulfur co-doped resin-based porous hard carbon material, and belongs to the field of carbon material preparation. The preparation method comprises the following steps: taking resin as a carbon source, taking trithiocyanuric acid as a double doping agent and a pore forming agent, mixing through an ethanol solvent to form a uniform and dry precursor, performing high-temperature carbonization in an inert atmosphere to realize nitrogen-sulfur co-doping and porous structure construction in one step, and cooling to room temperature to obtain the nitrogen-sulfur co-doped resin-based porous hard carbon material. The prepared hard carbon material has an amorphous structure, the doping amounts of nitrogen and sulfur are respectively 1-5at%, and the specific surface area is less than 5m < 2 > g <-1 >. When the material is used as an active material of a negative electrode of a potassium ion battery, the electrochemical properties such as specific capacity, rate capability and cycling stability are excellent. The method has the characteristics of simple process and low cost, is easy to realize large-scale production, and provides a new strategy for the development of high-performance potassium ion batteries.

The invention relates to the technical field of preparation of electrochemical materials, in particular to a sulfur-nitrogen-cobalt co-doped porous carbon tube electrode material and a preparation method and application thereof. The preparation method comprises the following steps: jointly dissolving melamine, trithiocyanuric acid and soluble cobalt salt in water, carrying out a cross-linking reaction to generate a cobalt-doped melamine-trithiocyanuric acid supramolecular precursor, drying and crushing, and then carrying out pre-calcining treatment to obtain a sulfur-nitrogen-cobalt co-doped tubular material; and co-dissolving the sulfur-nitrogen-cobalt co-doped tubular material and asphaltene oxide in a solvent, performing drying treatment, and performing calcination treatment to obtain the sulfur-nitrogen-cobalt co-doped porous carbon tube electrode material. The adsorption capacity and electrochemical activity of the sulfur-nitrogen-cobalt co-doped porous carbon tube electrode material on heavy metal ions in a water body are improved by combining the advantages of heteroatom doping and tubular morphology through a step-by-step synthesis method, so that high-sensitivity detection on the heavy metal ions in the water body is realized.

The application discloses a kind of supermolecule self-decomposition template synthesis multi-element doped diameter adjustable carbon-based micropipe method, belong to carbon micropipe preparation technical field, operation steps are as follows: (1) respectively preparation containing melamine (M) or 2,4,6-triaminopyrimidine (TAP) solution A and containing cyanuric acid (CA) or trithiocyanuric acid (TCA) solution B;(2) A liquid drop is added to B liquid, and the supermolecule precursor of M-CA, M-TCA, TAP-TCA is obtained;(3) 2-methylimidazole and sulfur, boron, phosphorus, fluorine and other element compounds are added in the solution of precursor, and after heating and drying, the precursor composite with different diameters is obtained by drying in oven for 24h;(4) it is obtained by calcining at 500-700 DEG C for 1-2h under argon atmosphere;In the application, the synthesized supermolecule as a template has the advantages of self-decomposition, adjustable diameter, and can be partially converted into carbon-based materials;During preparation, adding appropriate drugs realizes multi-element doping in one step, and the method has the advantages of simplicity, low cost and large-scale preparation.

The invention discloses a method for synchronously degrading antibiotics and aging plastics through a defective cyano-co-doped carbon nitride photocatalyst, which comprises the following steps: adding the defective cyano-co-doped carbon nitride photocatalyst into wastewater containing antibiotics and plastics, and reacting under an illumination condition, electrons provided by the antibiotics are used for accelerating generation of. O2 <->, so that plastic aging is accelerated, and synchronous degradation of the antibiotics and plastic aging are realized; wherein the defective cyano co-doped carbon nitride photocatalyst is obtained by taking trithiocyanuric acid as a precursor and calcining twice. Through synchronous treatment, the treatment efficiency can be remarkably improved, the treatment time and the treatment cost can be reduced, meanwhile, the problems of process complexity and secondary pollution caused by respective treatment are avoided, and the method has the characteristics of efficient active oxygen generation, remarkable improvement of the aging effect and the like, so that the method has remarkable application value in the field of antibiotic wastewater and plastic pollution treatment; a new technical approach is provided for solving the problem of complicated water body pollution.

The present invention provides a preparation method and application of an S-type CdS-MnO2 heterojunction photothermal catalyst, the preparation method comprising: providing high-purity manganese dioxide; and dissolving cadmium nitrate tetrahydrate in deionized water to obtain a first solution; dissolving polythiocyanate in deionized water, and adding sodium hydroxide to adjust the pH value to obtain a second solution; adding the second solution dropwise to the first solution, stirring, aging, filtering, washing, and drying to obtain a precursor cadmium trithiocyanate; cadmium trithiocyanate and manganese dioxide are mixed in deionized water, reacted under heating conditions, filtered, washed, and dried to obtain the S-type CdS-MnO2 heterojunction photothermal catalyst, the preparation method process is simple, the prepared catalyst has good stability, and the photothermal synergistic catalytic performance is high. The present invention also provides an S-type CdS-MnO2 heterojunction photothermal catalyst and a toluene photothermal catalytic oxidation method.

The invention discloses a preparation method of a lignin supramolecular derived carbonaceous bimetallic compound, which comprises the following steps: modifying lignin by using ethylenediamine and formaldehyde through Mannich reaction to synthesize aminated lignin; enabling the aminated lignin, melamine and trithiocyanuric acid to form a lignin supramolecular precursor; and boric acid is added into the lignin supramolecular precursor for boron doping, then the vanadium-manganese compound is added, and then the lignin supramolecular derived carbonaceous bimetallic compound is obtained through hydrothermal treatment and carbonization. According to the invention, supramolecular synthesis, nonmetal doping and metal loading are realized, the electronic structure and the pore structure of the material are optimized, the ion diffusion resistance can be effectively reduced, the ion transmission efficiency is improved, and the comprehensive electrochemical performance of the lignin-derived carbon material in an aqueous zinc ion energy storage system is improved.

The invention discloses titanium dioxide loaded trithiocyanuric acid modified loofah sponge and a preparation method and application thereof.The preparation method comprises the steps that loofah sponge is soaked in a sodium hydroxide aqueous solution and reacts for 8-24 h at the normal temperature, and alkali-treated loofah sponge is obtained; reacting the alkali-treated loofah sponge with an ethanol water solution of tetraethyl titanate at 20-100 DEG C for 12-48 hours to obtain a titanium dioxide-loaded loofah sponge; and reacting the titanium dioxide filament-loaded melon sponge, chloroacetyl chloride and an N, N-dimethylformamide solution of trithiocyanuric acid at 20-80 DEG C for 8-24 hours in sequence, taking out and drying to obtain the titanium dioxide-loaded trithiocyanuric acid modified loofah sponge. According to the preparation method of the titanium dioxide loaded trithiocyanuric acid modified loofah sponge, an organic framework does not need to be chemically synthesized; the titanium dioxide loaded trithiocyanuric acid modified loofah sponge obtained by the invention not only has excellent dye adsorption and degradation functions, but also has excellent adsorption and reduction capability on noble metal ions.

The application belongs to the field of non-noble metal catalysts, and particularly relates to a Fe-S1N3 coordination structure double-enzyme characteristic single-atom nanozyme as well as a preparation method and application thereof. The preparation method comprises the following steps: taking Hemin / ZIF-8 as a template, taking trithiocyanic acid TTCA as a sulfur source, forming a Hemin / ZIF-8@TTCA core-shell precursor, and then further carbonizing at high temperature to obtain the Fe-S1N3 coordination structure double-enzyme characteristic single-atom nanozyme. The asymmetric Fe-S1N3 coordination configuration and electronic structure make the Fe-S / N-C have higher peroxidase-like activity and glutathione oxidase activity compared with a typical Fe-N4 configuration Fe-N-C SAzyme.

The application belongs to the technical field of carbon materials, and proposes a preparation method of nitrogen-phosphorus-sulfur co-doped porous carbon, which comprises the following steps: A, dissolving chitosan in an acetic acid solution, stirring and dissolving to obtain a chitosan gel, then adding ferric chloride and thiocyanic acid, and performing hydrothermal treatment at 150-200 DEG C to obtain an intermediate product; B, mixing the intermediate product with potassium hypophosphite, and then performing carbonization at 800-1000 DEG C in an inert gas atmosphere to obtain a carbon material. The carbon material preparation method is simple, and the prepared carbon material has excellent electrochemical performance.

The invention provides a chalcopyrite combined inhibitor and application thereof, and particularly relates to the technical field of copper sulfide molybdenum ore beneficiation. The combined inhibitor comprises penicillamine and trithiocyanuric acid, floating of the chalcopyrite is inhibited in the copper-molybdenum separation flotation process by adding the combined inhibitor, and therefore the floatability difference between molybdenite and the chalcopyrite is enlarged, and separation of the chalcopyrite and the molybdenite is achieved. According to the copper-molybdenum sulfide flotation separation combined inhibitor, the defects that a traditional copper-molybdenum flotation separation inhibitor is high in toxicity, harmful to the natural environment and the like are overcome, meanwhile, the remarkable flotation effect is achieved in separation flotation of copper-molybdenum sulfide ore, and the novel efficient combined inhibitor is provided for efficient utilization of copper-molybdenum ore resources.

The invention discloses a trithiocyanuric acid aminoguanidine ultraviolet birefringent crystal and a preparation method and application thereof, the chemical formula of the crystal is (CN4H7) H2C3N3S3, the crystal structure belongs to a triclinic system, the space group is # imgabs0 #, the cell parameters a are 6.7573 (4), b is 8.7534 (4), c is 8.9165 (3), alpha is 91.103 (3), beta is 92.980 (4), gamma is 102.896 (4), Z is 2, the unit cell volume V is 513.15 (4) 3, and the crystal is wide in transmission range and large in birefringence rate and can be used for birefringent crystal materials in the ultraviolet band. The trithiocyanuric acid aminoguanidine single crystal is easy to grow, colorless, transparent and good in chemical stability, and can be used for manufacturing an ultraviolet birefringent optical device; a birefringent optical device made of the birefringent optical crystal plays an important role in modulation of polarized light in optical communication and laser industries.

The application belongs to the technical field of pharmaceutical analysis, and particularly relates to a separation and determination method of alosiltib mesylate intermediate Z2 and impurities thereof. 1d The impurities include one or more of trithiocyanic acid, triphenyl phosphine oxide, impurity SM1, impurity SM 2d 2, impurity SM 1a 2, impurity Z1, impurity Z 1b 2, impurity Z 1d 2, impurity B, impurity C, impurity D, impurity F, impurity SM 1b 2 and triphenyl phosphine. The method comprises the following steps: adopting octadecylsilane bonded silica gel as chromatographic column filler, taking phosphate buffer as mobile phase A, taking a mixed solution of methanol and acetonitrile as mobile phase B, performing linear gradient elution, and entering a detector for detection. Finally, whether the content of impurity SM1 is qualified is detected by limit method, and the content of other impurities is calculated by principal component self-control method with a correction factor. The method has the characteristics of good separation degree, good durability, high sensitivity and good reproducibility.

The application provides a treatment method of industrial organic wastewater, comprising the following steps: adjusting the pH of the industrial organic wastewater to 3.8-5.5, and performing a stirring reaction to obtain wastewater A; adding reagent B into the wastewater A, and performing a stirring reaction; and after standing, obtaining treated industrial organic wastewater; the reagent B is one or more of sodium dimethyl dithiocarbamate, sodium diethyl dithiocarbamate, trisodium trithiocyanate and sodium piperazine dithiocarbamate. The treatment method has the advantages of simple operation, simple process equipment, low investment cost, easy engineering promotion, cheap and easily available reagent, and can be used for treating heavy metal-containing organic wastewater in different industrial fields, and has good heavy metal removal effect and good industrial application value.

The invention discloses a photocatalytic material and a preparation method and application of gel of the photocatalytic material, and the method comprises the following steps: mixing trithiocyanuric acid, oxalic acid, Bi2O3 and TiO2 according to a preset mass ratio, calcining, cooling to obtain an O, S-g-C3N4 / Bi2O3 / TiO2 photocatalytic material, dispersing the O, S-g-C3N4 / Bi2O3 / TiO2 photocatalytic material in water, adding a gel matrix, stirring, aging, freezing, freeze-drying and carrying out crosslinking treatment to obtain the O, S-g-C3N4 / Bi2O3 / TiO2 photocatalytic material. The invention discloses S-g-C3N4 / Bi2O3 / TiO2 photocatalytic gel, and solves the problems of low efficiency and high preparation cost of a photocatalyst.

This invention relates to the field of photocurable functional materials technology, specifically to a UV-curable antioxidant polymerization inhibitor crosslinking agent, its preparation method, and its application. The UV-curable antioxidant polymerization inhibitor crosslinking agent is an addition product of trithiocyanate and a multifunctional (meth)acrylate compound; the functionality of the multifunctional (meth)acrylate compound is 2-21. The molecular structure of this UV-curable antioxidant polymerization inhibitor crosslinking agent contains a triazine heterocycle and multiple thioether bonds. This structure can efficiently quench oxygen in the environment during UV curing, thereby inhibiting the oxygen polymerization inhibitory effect and achieving rapid and complete curing of the coating surface. Simultaneously, the high functionality of this compound ensures a high crosslinking density in the cured film, significantly optimizing the surface curing effect and greatly improving the scratch resistance, chemical stability, and insulation properties of the UV-cured coating.

The present invention relates to a hydrodesulfurization catalyst, specifically a core-shell molecular sieve@transition metal-doped molybdenum disulfide / carbon composite catalyst, its preparation method, and application, comprising: S1: dispersing the core phase material in water, adjusting the pH to a negative charge, adding a positively charged polymer, and centrifuging and washing; S2: dispersing the configured material in water, adding a molybdate solution, and centrifuging and washing; S3: repeating the electrostatic adsorption processes of S1 and S2 at least once, leaving the outermost layer as a molybdenum layer; S4: dispersing the precursor in water, stirring, and drying; S5: calcining the product under an inert atmosphere; when the core phase material is not doped with a transition metal, S4: dispersing the precursor, and then adding a transition metal salt additive and trithiocyanate. Compared with the prior art, the present invention solves the problem of the lack of a simple and suitable bonding pathway between the molybdenum-based / carbon-supported hydrodesulfurization catalyst and the acidic support in the prior art, thereby achieving a regional distribution of metal active centers in the shell phase and acid active centers in the core phase.

The invention relates to a molybdenum catalyst and a preparation method and application thereof. The method comprises the following steps: by taking ammonium heptamolybdate as a molybdenum source, trithiocyanuric acid as a sulfur source and activated carbon as a carrier, dispersing by ball milling, and calcining and loading in a nitrogen atmosphere to obtain the catalyst with molybdenum disulfide loaded on the activated carbon. The catalyst can be recovered through centrifugation and filtration and has excellent cycle stability. According to the method, a dexlansoprazole by-product (a mixture mainly containing levolansoprazole) is taken as a substrate, under the action of a molybdenum catalyst, hydrogen is introduced as a reducing agent, and the by-product can be reduced into the lansoprazole thioether (a synthetic precursor of dexlansoprazole) in a high-selectivity manner. In addition, racemic lansoprazole can be directly used as a substrate, high-selectivity reduction into lansoprazole thioether (a dexlansoprazole synthesis precursor) can be realized under the action of the same molybdenum catalyst, and the raw material application range of the process is further widened. The method solves the industrial problem that byproducts cannot be efficiently recycled in the existing dexlansoprazole synthesis process, has the advantages of simple reaction process, easiness in product separation and catalyst recyclability, and has a good industrial application prospect.

The invention provides a lithium ion battery, a preparation method thereof and a power utilization device. The lithium ion battery comprises a diaphragm, wherein the diaphragm comprises a base material layer, a ceramic layer arranged on at least one surface of the base material layer and a binder layer arranged on the surface of the ceramic layer; the ceramic layer comprises a first additive, the first additive comprises a first transition metal ion capturing agent, the binder layer comprises a second additive and a second binder, and the second additive comprises a second transition metal ion capturing agent; the first transition metal ion trapping agent and the second transition metal ion trapping agent respectively and independently comprise one or more of sodium xanthate, thiophosphate, thiocarbamate, trisodium trithiocyanurate and trithiol tetrabutylammonium salt. The diaphragm in the lithium ion battery can effectively reduce transition metal ions in the charging and discharging process of a battery cell, and the cycle life of the battery is prolonged.