586 results about "Material synthesis" patented technology

The invention discloses a material synthesis data extraction method and system based on a knowledge enhancement large model, and relates to the related field of artificial intelligence, and the method comprises the steps: retrieving literature data, and constructing a material synthesis knowledge text by executing data denoising and OCR text conversion; performing LoRA fine tuning on the basic large model, introducing a field instruction data set to perform fine tuning learning, and determining an extraction large model; performing semantic partitioning and vectorization on the material synthesis knowledge text, constructing a multi-level retrieval framework, performing retrieval enhancement in combination with a material science knowledge base, and determining an enhanced knowledge text; and constructing a data extraction prompt, combining the enhanced knowledge text with a material to synthesize a knowledge text, inputting the knowledge text into an extraction large model, and executing knowledge extraction processing. The problem that the accuracy of data extraction is insufficient in the prior art is solved, and the effect of improving the accuracy of data extraction is achieved. Meanwhile, manual work can be replaced to complete literature analysis extraction and domain knowledge association, and support is provided for material synthesis process recommendation.

The invention discloses a method for designing a new pollutant perfluorinated compound adsorption material based on a large language model. The method comprises the following steps: firstly, constructing a mixed retrieval enhancement generation framework fusing a structured knowledge graph and vectorized semantic retrieval; then constructing a field knowledge graph and semantic representation big language model oriented to the PFAS adsorption material by utilizing a big language model framework; generating an initial material design framework through a large language model, performing iterative adjustment on a material structure in combination with a machine learning model, and predicting and generating a performance-optimized PFAS adsorption material; and finally, based on knowledge graph reasoning and vector storage information, combining molecular structure information, and recommending an experiment path for PFAS adsorption material synthesis and verification. According to the method, the knowledge graph and the semantic model are constructed to realize automatic extraction and systematization of domain knowledge, an interpretable design rule is generated through data reasoning, an optimization code is automatically generated through combination of LLM and ML, an experiment path is recommended to accelerate material design iteration, the experiment period is shortened, and a reliable screening scheme is provided.

The invention discloses a reaction kettle device for synthesis of an iron phosphate material, and particularly relates to the technical field of synthesis of battery materials, and the device comprises a kettle body, a driving motor, a transmission disc and a turbo-type paddle. A sealing cover is arranged at the top of the kettle body, a driving motor is connected with a rotating shaft, an anchor blade is arranged below the rotating shaft, and the bottom realizes turbine blade lifting and sleeve guide limiting through transmission of a piston cavity and compressed gas; and a ratchet wheel on the outer wall of the rotating shaft is meshed with a pawl in the transmission disc in a one-way mode, and intermittent wall scraping is achieved. According to the device, dead angles are broken through synergistic stirring of the double blades, the mixing uniformity and the reaction rate are improved, materials adhering to the wall are efficiently removed through intermittent wall scraping, the stable reaction environment is guaranteed through multiple sealing, the structure is flexible to adjust, maintenance is convenient and fast, efficient and high-quality synthesis of the iron phosphate material can be achieved, and the device is suitable for industrial large-scale production.

The invention aims to serve the national strategic emerging industry, and discloses a deterministic material synthesis method and a deterministic material synthesis system for pre-nucleation chiral intervention (PNChI for short), which are suitable for one-dimensional or quasi-one-dimensional material systems (such as carbon nanotubes, biomacromolecules and the like) with formalized chiral tags. According to the method, before irreversible closed nucleation of a precursor is completed, deterministic authorization of a target chiral index (n, m) is realized in a controllable time window through at least one engineering intervention mechanism (such as physical field regulation, catalytic interface design, information coding guidance and the like) based on distinguishable physical properties, and consistency is kept in subsequent growth. The system comprises a programmable intervention unit and an intelligent sequence control module, and does not depend on a separation or screening step after nucleation. The single chiral index abundance in the obtained material is greater than or equal to 95%, preferably greater than or equal to 98%. The statistical limitation of traditional chiral control is broken through, a general synthesis normal form from'instruction input 'to'structure output' is constructed, and the method is suitable for high-consistency application scenes such as semiconductors, quantum devices, catalysts and biological recognition.

The invention belongs to the technical field of solid waste recycling and porous carbon material synthesis, and particularly relates to abandoned wind turbine blade-based porous carbon as well as a preparation method and application thereof. The method comprises the following steps: carbonizing waste wind turbine blade powder in first protective gas, etching, mixing the obtained primary porous carbon material with an activator, and carrying out pyrolysis activation in second protective gas to obtain the waste wind turbine blade-based porous carbon. According to the method, the waste wind turbine blade is converted into the graded porous carbon material with micropores, mesopores and macropores, the diffusion performance of gas in the pore channels is greatly improved through the synergistic effect of the graded porous structure, the performance advantages of high capacity, fast mass transfer and high adaptability are shown, a way is provided for high-value recycling of the waste blade, and the method is suitable for industrial production. And a low-cost material is provided for the fields of energy storage and conversion, environmental governance, catalysis, adsorption and separation and the like, and the material has remarkable economic and environmental benefits and a wide commercial prospect.

The invention discloses a preparation method and application of an artificially synthesized carbon-based functional biofilm repair material, and relates to the technical field of material synthesis and modification. The method comprises the following steps: inoculating a synthetic functional flora into an inorganic salt culture medium according to the inoculum size of 1.9-2.1% in volume fraction, culturing, centrifuging, collecting thalli, and adjusting OD600 to 0.09-0.11 by using the inorganic salt culture medium under a sterile condition to obtain a compound bacterial solution; mixing the composite bacteria solution, the biological membrane culture solution and the carbon-based material, then carrying out shake culture at 29-31 DEG C, then replacing nutrients, continuing shake culture at 29-31 DEG C, removing an upper-layer turbid liquid, and cleaning with a PBS (Phosphate Buffer Solution) to obtain the artificially synthesized carbon-based functional biological membrane repair material. The invention can obtain the preparation method and the application of the artificially synthesized carbon-based functional biological membrane repair material.

The invention discloses a simple preparation method of a barium-based metal organic framework (Ba-H2Sip) and proton conduction application of the barium-based metal organic framework (Ba-H2Sip), belongs to the field of functional material synthesis and energy application, and is characterized in that functional differentiation design of a 5-sulfoisophthalic acid ligand: a sulfonic group forms a two-dimensional layered structure by chelating Ba < 2 + >; the carboxyl groups are differentiated into'anchoring carboxyl groups' for constructing a three-dimensional supramolecular skeleton and'proton supply carboxyl groups' for providing a proton source, and the design is reported for the first time in Ba-based MOFs; according to the present invention, the large-scale preparation can be achieved by stirring the low-cost raw material in 1 mol / L hydrochloric acid at the room temperature, the yield exceeds 70%, the product can resist 8 M acid and pH = 13 alkali liquid, the conductivity at 90 DEG C / 90% humidity can achieve 1.39 * 10 <-2 > Scm <-1 >, the high-temperature process is not required, the raw material is low in cost and easy to obtain, and the feasible scheme is provided for the high-efficiency proton conductor industrialization.

The embodiment of the application relates to an oxygen reduction catalyst for constructing a local alkaline-like microenvironment and a preparation method and application thereof, and belongs to the technical field of material synthesis. The preparation method of the oxygen reduction catalyst for constructing a local alkaline-like microenvironment comprises the following steps: (1) loading Fe on a core MOF material to obtain a core Fe / MOF material, and then constructing metal atoms M with water activation capacity in-situ on a shell MOF material by an epitaxial growth method to obtain a core-shell Fe / MOF@M / MOF precursor material, and Fe and M are limited in the core and the shell respectively; (2) performing in-situ carbon conversion on the Fe / MOF@M / MOF precursor material by pyrolysis to obtain a FeNC@MNC oxygen reduction catalyst for constructing a local alkaline-like microenvironment in natural seawater. The catalyst with water activation capacity provided in the embodiment overcomes the challenges of low ion conductivity and chloride adsorption in natural seawater, enhances the stability and activity of the catalyst in seawater, and realizes efficient and stable oxygen reduction.

The present invention relates to a bimetallic layered hydroxide / phytic acid synergistic flame-retardant nylon 6 composite material and its preparation method and application, belonging to the technical field of flame retardant material synthesis. The composite material is prepared from nylon 6, bimetallic layered hydroxide and phytic acid. Wherein, the phosphate functional group in the phytic acid can chelate with the metal ion in the bimetallic layered hydroxide, thereby forming a novel flame retardant. When combustion occurs, the layered structure and thermal decomposition products such as metal oxides, metal phosphates, and carbon-containing aromatic network structure substances in the flame retardant help to suppress the release of smoke and toxic gases, and the release of metal ions and phosphorus-containing free radicals helps to suppress the spread of fire. Compared with pure nylon 6, the peak heat release rate and total heat release rate of the composite material are greatly reduced, the limiting oxygen index is greatly increased, and the vertical combustion test reaches V-0 level. At the same time, the raw material sources in the preparation method of the composite material are abundant, the operation is simple, and it is suitable for scaled-up production.

This invention provides a method and application for the comprehensive utilization of chlor-alkali salt mud solid waste to prepare a composite de-icing agent, belonging to the field of comprehensive utilization of solid waste resources and composite material synthesis technology. The invention first prepares a slurry by mixing chlor-alkali salt mud with water. Then, under the action of an acidification aid and an ionic liquid, organic and inorganic acids are added in a single step, followed by precipitation of the composite de-icing agent in an alcohol precipitation solution. The method of this invention achieves a salt mud utilization rate of 86.55-88.85% and an effective component extraction rate of 96.70-99.27%, especially for Ca... 2+ Na + K + Mg 2+ Al 3+ The extraction rates reached 95-99.99%, 99.9%, 99.9%, 85.5-95.0%, and 80.5-90.0%, respectively, and also improved the extraction efficiency of Ca in the solution. 2+ Na + K + Mg 2+ Al 3+ The precipitation rates reached 95.5-99.5%, 75.5-80.5%, 72.5-75.5%, 95.5-99.5%, and 71.5-75.5%, respectively, and the product yield reached 90.80-95.08%. It has broad prospects for snow melting and ice removal in low-temperature environments of -15℃ to -20℃.

The invention relates to the technical field of organic photoelectric materials, and particularly discloses a non-condensed ring small molecule acceptor material based on a quinonoid structure as well as a preparation method and application of the non-condensed ring small molecule acceptor material. According to the invention, easily available 1, 4-diacetyl piperazine-2, 5-diketone is used as a center, an alkyl chain and Ar are used for modification, EG is used as an end group, the non-condensed ring A-D-A '-D-A type structure acceptor material based on a quinone structure is constructed, and the general formula is shown in the specification. Wherein the PCE of the acceptor material which is modified by bithiophene and takes 2-(3-ethyl-4-oxothiazolidine-2-subunit) malononitrile as a terminal group reaches 15%. The non-condensed ring small molecule acceptor material based on the quinonoid structure is simple in synthesis process, and an effective strategy is provided for solving the problem of the overall performance of an organic solar cell.

The invention provides a synthesis method of adsorption resin for removing immune globulin, and relates to a high polymer material synthesis technology, polyethylene glycol (PEG) or sulfobetaine (SBMA) is grafted through RAFT polymerization, the thickness of a grafting layer is 50-150nm, the nonspecific adsorption capacity of albumin is less than 5ng / cm < 2 >, photosensitive groups (such as phenyl azide) and ultraviolet light (254nm) are introduced to trigger crosslinking, and the coating shedding rate is less than 0.5% / time. According to the present invention, the cyclic stability is improved by 2 times, the Protein A directional capture antibody is grafted on the surface of the acrylic resin grafted with the polyethylene glycol or sulfobetaine, the IgG adsorption capacity achieves 150 mg / g, the specificity is more than 95%, the polyethylene glycol (PEG) is grafted on the surface of the magnetic particle by using ATRP / RAFT controllable polymerization, the organic solvent use amount is reduced by more than 80%, and the product adsorption capacity achieves 150 mg / g.

The invention provides a cobalt tungstate and bismuth vanadate photocatalytic material as well as a preparation method and application thereof, and belongs to the technical field of material synthesis and photocatalytic application. In the presence of monoclinic-phase decahedron BiVO4, CoWO4 nanoparticles grow in situ on an electron-rich (010) crystal face of the CoWO4 nanoparticles through a hydrothermal reaction, and the cobalt tungstate and bismuth vanadate photocatalytic material is obtained. According to the cobalt tungstate and bismuth vanadate photocatalytic material, a simple hydrothermal method is adopted, in the synthesis process, a CoWO4 precursor is guided by electrostatic interaction, preferentially adsorbed and subjected to nucleation growth on the (010) crystal face of BiVO4, a compact chemical bonding interface is constructed through selective growth, the charge migration distance is effectively shortened, and the photocatalytic performance of the material is improved. The interface charge transfer resistance is reduced to the greatest extent, and the formed binary photocatalyst has excellent effects on photocatalytic hydrogen evolution and tetracycline degradation.

The invention relates to the technical field of organic functional material synthesis and mycotoxin removal, in particular to a magnetic covalent organic framework for adsorbing zearalenone and a preparation method and application thereof.The magnetic covalent organic framework is Fe3O4 (at) COF-VPBA and is prepared from 1, 3, 5-tris (4-aminophenyl) benzene, 2, 5-dimethoxy terephthalaldehyde, 4-alkenyl phenylboronic acid, boron trifluoride diethyl etherate, 2, 3-dichloro-5, 5-di (4-aminophenyl) benzene, 2, 5-dimethoxy terephthalaldehyde, 2, 5-dimethoxy terephthalaldehyde, 2, 5-dimethoxy terephthalaldehyde, 2, 5-dimethoxy terephthalaldehyde, 2, 5-dimethoxy terephthalaldehyde, 2, 5-dimethoxy terephthalaldehyde, 2 The catalyst is prepared from 2, 6-dicyano-1, 4-benzoquinone and nano ferroferric oxide through a four-component one-pot in-situ Povarov reaction. According to the method, the process is simplified, the defects of a fractional step method are avoided, due to specific covalent binding of boric acid groups and ZEN catechol hydroxyl groups, the adsorption capacity and the adsorption rate are remarkably superior to those of traditional and unfunctionalized adsorption materials, the adsorption rate still exceeds 90% after acetonitrile is eluted and regenerated and is repeatedly used for more than 5 times, and the comprehensive requirements of high selectivity, high adsorption capacity, easiness in separation and recyclability are met.

The invention relates to a synthesis method of functionalized (poly) silazane, which comprises the following steps: providing heat energy or light energy under the action of an iron catalyst, and completely reacting in a corresponding solvent in the presence of an additive and a functionalization reagent to realize the breakage and functionalization of carbon-hydrogen bonds on a chain in the (poly) silazane compound so as to obtain a polar functionalized product; a (poly) silalkane (oxo) compound; according to the method, commercialized silane, siloxane and polysiloxane compounds are directly used as raw materials, carbon-hydrogen bond functionalization is carried out in a catalytic mode, the method has the advantages of being simple in reaction, easy to operate, short in reaction time, mild in reaction condition, high in reaction efficiency, easy in product separation and purification, good in substrate universality and the like, and a large amount of precious metal and heavy metal salt are prevented from being used; the method is suitable for industrial production in the fields of small molecule synthesis, polymer modification, new material synthesis, luminous silica gel, waste silica gel recovery and the like.

A method of recommending a process recipe is provided. The method includes selecting candidate process recipes for material synthesis corresponding to target physical properties based on a prediction result of a pre-trained process result predictor based on pieces of recipe data corresponding to a target process, collecting preference data of an expert for arbitrary process recipe pairs selected from among the candidate process recipes, training a preference predictor to predict preference of the expert for the arbitrary process recipe pairs, using the preference data, and recommending, among the candidate process recipes, a target process recipe for the target process, based on the target physical properties predicted by the pre-trained process result predictor and a preference prediction value predicted by the preference predictor in response to the candidate process recipes.

The invention discloses a method for synthesizing butyl zirconate and butyl hafnate, and relates to the technical field of material synthesis, and the method comprises the following steps: mixing and stirring: putting a solvent n-heptane into a reaction kettle, putting a certain amount of hafnium tetrachloride (or zirconium tetrachloride) solid into the reaction kettle, putting a certain amount of n-butyl alcohol into the reaction kettle, and stirring for 30-60 minutes; finally, stirring; organic synthesis: introducing ammonia gas in the stirring process in the step S1, and setting the reaction temperature to be 45 DEG C or below and the reaction pressure to be normal pressure; performing solid-liquid separation; organic distillation; compared with the existing process, the preparation method has the advantages that the preparation cost of the product is greatly reduced through an organic synthesis and secondary distillation treatment mode; and secondly, in the preparation process, the generation of pollutants, especially triethylamine hydrochloric acid, is reduced, the generation of hazardous wastes is avoided, only deacidification and ammonium chloride removal treatment are needed, and compared with the existing process, the cost is greatly reduced, and the environmental protection benefit is relatively obvious.

The present invention relates to the technical field of high polymer material synthesis, and discloses an anti-clogging microreactor for high viscosity silicone rubber synthesis, the anti-clogging microreactor comprises a microreactor chip, and the interior of the microreactor chip is provided with a tree-shaped bifurcated microchannel network based on fractal structure design; the invention relates to a continuous preparation method of an anti-clogging microreactor for synthesizing high-viscosity silicone rubber. The continuous preparation method comprises the following steps: S1, precisely metering a methyl cyclosiloxane monomer and a vinyl siloxane monomer, and then inputting the methyl cyclosiloxane monomer and the vinyl siloxane monomer into the microreactor; s2, carrying out a controllable ring-opening polymerization reaction in the microchannel; and S3, quickly terminating the reaction by injecting a terminating agent on line, and controlling the molecular weight and distribution of the polymer. Compared with the prior art, the method has the advantages that the problems that an existing microreactor is prone to blockage and difficult to operate stably for a long time when treating a high-viscosity siloxane polymerization system are solved, meanwhile, the method can achieve accurate control over product quality and continuity and intellectualization of the production process, the production efficiency is remarkably improved, and energy consumption is reduced.

This invention relates to the field of polymer material synthesis technology, specifically to a modified PVB resin and its preparation method. The invention introduces a fluorinated acetal monoaldehyde derivative containing fluorine into the PVB resin. This derivative is mixed with n-butyraldehyde and glyoxal, thereby undergoing an acetalization reaction with the 1,3-o-diol structure of the PVB molecular chain, incorporating the fluorinated side link into the PVB molecular chain. Utilizing the high electronegativity and high C-F bond energy of fluorine atoms, it shields against the intrusion of external corrosive media, inhibits oxidative yellowing, and improves weather resistance. Furthermore, the invention introduces glyoxal as a crosslinking agent, containing dialdehyde groups, which can react between adjacent polyvinyl alcohol segments, causing slight crosslinking between the originally linear PVB resin segments, improving the resin's shielding performance, further reducing the intrusion of external corrosive media, and enhancing the stability of the PVB resin.

The invention discloses block polyol as well as a preparation method and application thereof, and belongs to the technical field of polymer polyol. An antibacterial compound containing a conjugated ring structure is directly embedded into a polyol molecular chain through a polymerization reaction, and the block polyol is applied to synthesis of a polyurethane material. According to the method, through covalent bonding of an antibacterial structure block and polybasic acid, stable existence of an antibacterial functional group in a polyurethane main chain is realized, and the defect that the antibacterial property is weakened or environmental pollution is caused due to migration and surface grafting of an antibacterial agent is avoided; an effective solution is provided for developing a polyurethane material with excellent antibacterial property and biological safety.

The present application relates to the technical field of gas sensitive material synthesis, in particular to a preparation of a hemin nanosphere-graphene composite material and its application in detecting nitric oxide gas, and provides a preparation method of the hemin nanosphere-graphene composite material, wherein the hemin is first treated at high temperature in a ketone solvent, and then the hemin nanosphere is obtained after purification and drying; and the hemin nanosphere and graphene oxide are subjected to alcohol thermal reaction to obtain the hemin nanosphere-graphene composite material. The hemin nanosphere-graphene composite material is prepared into a gas sensitive electrode and applied to the detection of nitric oxide gas, and the electrode has good effects, can work at room temperature, and has the characteristics of strong selectivity, high sensitivity, low power consumption, high stability and fast recovery.

The application provides a method for building and interacting with a reinforcement learning environment, and belongs to the field of reinforcement learning and material science. Because the method uses computer simulation of the phase transition process of a crystal structure to obtain the intermediate structure of the phase transition process and defines a transformation rule, the method can effectively assist the experiment, thereby reducing the number of experiments and the cost, and has high economic value for the material synthesis discipline.

The application discloses a kind of photocatalytic performance composite materials, the composite material is schulte mineral-titanium dioxide supported biochar, the surface of the biochar is loaded with schulte mineral and titanium dioxide, and the schulte mineral is also connected titanium dioxide.The composite material obtained by the application has excellent structural effect, the surface of the biochar with wrinkle structure is uniformly covered with schulte mineral and TiO2, wherein the schulte mineral is also combined with TiO2 closely.The composite material of the application can effectively enhance the electron transfer efficiency of photoelectronic and hole, increase the catalytic efficiency of catalyst.The composite material of the application has the advantages of short processing time and large capacity of processing.The precursor material for material synthesis is derived from waste biomass resources, FeSO4·7H2O is widely available and low in price, and TiO2 nanoparticles is low in price, so the catalyst in the application has the advantages of low cost, easy popularization and easy operation.

The invention belongs to the field of new energy material synthesis and electro-catalysis, and particularly relates to a chiral molecule coupling layered hydroxide catalyst and a preparation method and application thereof. The invention innovatively provides a synergistic strategy fusing chiral molecular engineering and a bionic design principle to improve the oxygen evolution performance of the nickel-iron layered hydroxide, a one-step hydrothermal method is adopted for preparation, controllable anchoring of chiral molecules between layers of the nickel-iron layered hydroxide is realized, and the performance of the nickel-iron layered hydroxide is improved. Chiral molecules with a proton acceptor function are introduced into a NiFe-LDH interlayer; due to the steric hindrance and coordination characteristics of chiral molecules, regular growth of NiFe-LDH laminates can be disrupted, and more lattice defects, edge sites and unsaturated coordination metal centers are induced to be generated. The coordination effect of chiral molecules and metal centers (Ni and Fe) can adjust the electronic state and valence state of metal, so that the reaction energy barrier is reduced, and the reaction kinetics is accelerated.

The invention discloses a sodium ion battery hard carbon negative electrode material and a preparation method thereof, and belongs to the technical field of carbon material synthesis and electrochemistry. The hard carbon negative electrode material is prepared by carrying out pre-oxidation treatment, inert atmosphere pyrolysis, constant-speed cooling and crushing treatment on an animal hair generating substance material. According to the invention, the corresponding relationship among the interlayer spacing, the micropore number and the surface oxygen-containing groups of the animal hair generating substance fiber under the preoxidation-inert atmosphere temperature-changing pyrolysis, the sodium storage capacity and the cycling stability is determined; the rabbit hair-based hard carbon negative electrode prepared under the optimal condition realizes the sodium storage specific capacity of 265.30 mAh g <-1 > and the capacity retention ratio of 88.55% after 300 cycles under the current density of 50mA g <-1 >. The low-cost large-scale preparation scheme of the hard carbon negative electrode material, which can be industrially popularized, provided by the invention provides technical reference for industrial development of the sodium-ion battery.

The application relates to the technical field of material synthesis, and provides a carbon nanotube and a preparation method thereof, the preparation method comprising the following steps: preparing a spinel crystal structure of FeCoMgO as a metal catalyst, the specific surface area of the metal catalyst being 220-300 cm 3 / g; introducing the metal catalyst and a carbon source into a carbon nanotube growth device, reacting under first reaction conditions to obtain a first reaction product; reacting the first reaction product under second reaction conditions to obtain a second reaction product; and crushing the second reaction product to obtain the carbon nanotube. Through the above scheme, the dispersibility of the carbon nanotube is improved, and the problem of uneven mixing of the carbon nanotube and a high polymer composite material in a short time is solved.

The application relates to the technical field of photoelectric functional materials, in particular to an interface modification layer material and a synthesis method and application thereof. The interface modification layer material provided by the application increases the steric hindrance of the molecule by introducing a functional group at the para-position of the benzene ring in the BPhen molecular structure, and reduces the aggregation and crystallization of the molecule; the molecular weight of the synthesized phenanthroline derivative is large, the glass transition temperature is higher than that of BPhen, and the thermal stability of the material is better; the synthesized phenanthroline derivative exists in the form of ionized quaternary ammonium salt, the reactivity of the imine group in the molecular structure is weaker than that of BPhen or BCP, and the stability of the device is improved; and the synthesis method of the interface modification layer material provided by the application is simple, the yield is high, the purification is easy, the price is low, and the interface modification layer material can be prepared on a large scale. The interface modification layer material can be applied in a semiconductor photoelectric device, and is used as an electrode modification layer to reduce the electrode work function.

The present disclosure belongs to the technical field of material synthesis and utilization of renewable clean energy, and provides a red titanium dioxide heterojunction, and a preparation method therefor and the use thereof. The preparation method for a red titanium dioxide heterojunction comprises: forming a first precursor of B-doped titanium dioxide; calcining the first precursor at a high temperature to obtain a second precursor of a B-doped titanium dioxide heterojunction; and mixing any one of (NH4)2TiF6, NH4TiOF3 and (NH4)2TiOF4 with the second precursor, followed by a nitridation treatment in an ammonia gas flow to obtain a red titanium dioxide heterojunction uniformly doped with a rutile phase and an anatase phase. In the present disclosure, titanium dioxide in a rutile phase can be nitrided by means of an ammonium fluotitanate treatment, such that a red titanium dioxide heterojunction uniformly doped with both a rutile phase and an anatase phase is formed, which heterojunction exhibits relatively high water oxidation activity in a photocatalytic water decomposition reaction.

A material synthesis apparatus includes: at least one device configured to synthesize a material; a user interface configured to obtain information on a target product; and a processor, wherein the processor is configured to: determine synthesis conditions for preparing the target product using a pretrained synthesis prediction model; calculate a first synthesis method for preparing the target product based on the synthesis conditions; and control the at least one device based on the first synthesis method.

The invention relates to the technical field of high polymer material synthesis, in particular to a carbon dioxide-based polycarbonate type polyurethane polyurea material as well as a preparation method and application thereof. In the carbon dioxide-based polycarbonate type polyurethane polyurea material, carbon dioxide-based polycarbonate diol is used as a soft segment, a chain segment formed by reaction of diisocyanate, diamino disulphide and a micromolecular diol chain extender is used as a hard segment, and a melting method is adopted for polymerization in the preparation process. The polyurethane-polyurea material prepared by the invention has self-repairing capability when being damaged or scratched, can be pressed into a film or a coating to be used in the field of flexible electronic devices or automobile protective films, can ensure the durability of equipment, prolong the service life, reduce the maintenance cost, prolong the life cycle of a high polymer material, reduce pollution, and is suitable for industrial production. Meanwhile, the material takes carbon dioxide-based polycarbonate diol as one of main raw materials, and belongs to one of technologies for recycling carbon dioxide in carbon neutralization.