Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

26results about How to "Fully developed" patented technology

Antioxidant peptide from cantharellus cibarius sporocarp, antioxidant peptide detection reagent and application

The invention belongs to the technical field of food biology, and particularly relates to an antioxidant peptide derived from cantharellus cibarius sporocarp, an antioxidant peptide detection reagent and application, and the amino acid sequence of the antioxidant peptide is at least one of FPYPY, YPPYF, YYPF and MPWY. The antioxidant peptide provided by the invention is derived from chanterelle, is an enzymolysis product of chanterelle protein, and is derived from edible and medicinal fungus chanterelle, so that the antioxidant peptide is small in toxic and side effects and high in safety. Meanwhile, the antioxidant peptide disclosed by the invention has good biological activity and a relatively strong antioxidant effect, can remarkably scavenge free radicals, and can be applied to repair damage caused by oxidative stress.
Owner:JILIN AGRICULTURAL UNIV

Soil layer identification method and system based on static sounding data

The invention relates to the technical field of geotechnical engineering investigation, and provides a soil layer identification method and system based on static sounding data, and the method comprises the steps: carrying out the framing of static sounding sequence data through a sliding window, and carrying out the layering according to the formation process of a soil layer, the method comprises the following steps: inputting each soil layer in an uplink soil layer into an uplink head for soil layer evolution information extraction, inputting each soil layer in a downlink soil layer into a downlink head for soil layer evolution information extraction, carrying out vector splicing on features extracted by the uplink head and the downlink head, and then carrying out classification, so that a soil development and evolution rule can be comprehensively captured; redundant information is abandoned, and the purpose of capturing stratum depth sequence correlation to assist in soil texture type prediction is achieved.
Owner:SHANDONG HI SPEED GRP CO LTD +1

Fluorine-containing polymer, preparation method thereof and ArF immersed photoresist prepared from polymer

The invention relates to the technical field of photoetching materials, and particularly discloses a fluorine-containing polymer, a preparation method thereof and an ArF immersed photoresist prepared from the polymer. The fluorine-containing polymer comprises, by mol%, 5-15 mol% of a monomer A, 55-80 mol% of a monomer B and 15-30 mol% of a monomer C. The monomer A is a methacrylate monomer whose side chain is lactone, the monomer B is a methacrylate monomer whose side chain contains a protective group, and the monomer C is a methacrylate monomer whose side chain contains fluorine. The preparation method comprises the steps of dissolution, heating reaction, purification, drying and the like. The fluorine-containing polymer can be used for preparing an ArF immersed photoresist, a water-resistant layer with excellent hydrophobicity can be formed on the surface of the photoresist, the fluorine-containing polymer has good compatibility with the ArF immersed photoresist, and the developing performance of the photoresist is remarkably improved.
Owner:SUZHOU RUIHONG ELECTRONIC CHEM CO LTD

Boron-doped multi-component polyanionic sodium-ion battery cathode material and its preparation method

This invention relates to a boron-doped multi-element polyanionic sodium-ion battery cathode material and its preparation method, comprising the following steps: [The method involves] mixing Na₄Fe₂O₃ with... 3‑X B X (PO4) 2‑Y (SiO4) Y The stoichiometric ratio of P2O7 is determined by adding ferrous source, boric acid, sodium source, phosphorus source, and silicon source to water, followed by the addition of carbon source and mixing thoroughly to obtain a mixed slurry; wherein 0.2≤X≤0.5, 0<Y≤1; the mixed slurry is then ground to obtain a sand-milled slurry; the sand-milled slurry is dried to obtain precursor powder; under a protective atmosphere, the precursor powder is sintered at 450~550℃ to obtain boron-doped multi-element polyanion sodium-ion battery cathode material. The introduction of boron and silicon elements in this invention helps reduce raw material costs, improve the electrochemical performance of the material, especially enhancing the structural stability, rate performance, and cycle life of the cathode material, and also lowers the sintering temperature, meeting the requirements for cost reduction and efficiency improvement.
Owner:武汉启钠新能源科技有限公司 +1

Fermentation method of Xanthoceras sorbifolia bunge floral leaf radial root wine brewing

The invention discloses a fermentation method of Xanthoceras sorbifolia Bunge floral leaf root wine, and the Xanthoceras sorbifolia Bunge floral leaf root wine is prepared from Xanthoceras sorbifolia Bunge as a fermentation raw material through saccharification and alcoholization fermentation. According to the invention, the xanthoceras sorbifolia bunge is used as a raw material to brew the wine, and the flowers, leaves, stems and roots of the xanthoceras sorbifolia bunge have unique fragrance and taste, so that the xanthoceras sorbifolia bunge can be prepared into the wine with characteristics and unique flavor; according to the invention, the xanthoceras sorbifolia bunge used for making the wine is rich in antioxidant substances such as vitamin C, flavonoid compounds and the like, and the nutrient substances can be better reserved and converted in the wine making process, so that the xanthoceras sorbifolia bunge has multiple effects of resisting oxidation, resisting inflammation, regulating immunity and the like; according to the method, the whole xanthoceras sorbifolia bunge is used for brewing the wine, full development and comprehensive utilization of resources are achieved, and the xanthoceras sorbifolia bunge brewed wine is a product rich in uniqueness and has high market potential.
Owner:徐向来

Low-permeability sandstone uranium mine vertical shaft multi-node blasting permeability increasing device and construction method thereof

The invention provides a low-permeability sandstone uranium mine vertical shaft multi-node blasting permeation increasing device and a construction method thereof. An intelligent flexible directional blasting drill is arranged in a main shaft and used for drilling a plurality of branch wells which are distributed in an umbrella shape with the main shaft as the center; the slant adjustor is arranged in the main shaft and connected with the intelligent flexible directional blasting drill; the underground fracturing device is arranged in the main well, is lowered into a target reservoir and is used for performing perforation gas explosion combined fracturing on the main well and performing blasting fracturing on the branch wells; and the ground pumping and injecting mechanism is connected with the intelligent flexible directional blasting drill and the underground fracturing device and is used for pumping and injecting an additive material into the multilateral well and pumping a chemical permeation enhancing agent into the main well, so that the multilateral well in the target reservoir is drilled, plugged, filled or subjected to blasting fracturing, and the main well in the target reservoir is subjected to blasting fracturing. According to the device and the method, the porosity and the permeability of the low-permeability sandstone uranium mine reservoir around the main shaft can be improved in a large range, so that the mining rate of the uranium mine is improved.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

Shale gas well long-term productivity prediction method, device and equipment

The invention relates to a shale gas well long-term productivity prediction method, device and equipment, and the method comprises the steps: carrying out fracturing simulation on an uncommissioned well according to target fracturing construction pump injection parameters and stratum parameters of a stratum where the uncommissioned well is located, and obtaining fracture parameters of the uncommissioned well; calculating shale gas reservoir reserves of the non-commissioning wells according to the well parameters of the non-commissioning wells and the fracture parameters; according to the long-term productivity actual values of the multiple put-into-production wells in the stratum, the single-well production rate of each put-into-production well is calculated, single-well production rate posterior distribution is constructed, and a target single-well production rate value is determined based on a Markov chain-Monte Carlo sampling method; and according to the shale gas reservoir reserves of the non-commissioning well and the target single well production rate value, the long-term productivity predicted value of the non-commissioning well is calculated, so that a worker develops the non-commissioning well according to the long-term productivity predicted value, stratum resources are fully developed, and the overall efficiency of shale gas development is improved.
Owner:PETROCHINA CO LTD

Chain type rice full-bowl seedling raising belt and seedling raising plate

The invention relates to the technical field of crop planting, and discloses a chain type rice full-bowl seedling raising belt and seedling raising tray, the seedling raising tray is composed of a plurality of seedling raising belts, each seedling raising belt comprises a seedling raising bowl and a paper tape, the outer surface of each seedling raising bowl is fixedly connected with the two ends of the corresponding paper tape, and the paper tapes are arranged on the seedling raising belts. According to the chained rice full-bowl seedling raising belt and the seedling raising plate, the seedling raising plate is composed of a plurality of seedling raising belts, the seedling raising belts are bonded through glue, the seedling raising bowls are connected through paper belts to form a chain shape, the whole seedling raising plate can be pulled into a linear strip shape by pulling the topmost portions of the seedling raising belts, and therefore the seedling raising plate is convenient to transport; the seedling raising plate made of the degradable material can be used as a fertilizer to be buried after seedling raising is finished, the degradable material has the characteristic of absorbing water, irrigated water can be fully absorbed by pot seedlings, and the overall strength of the seedling raising plate can be effectively enhanced by adding fiber lines or reinforcing ribs in the seedling raising belt.
Owner:HEILONGJIANG ZHANGYUMEI AGRI MASCH EQUIP CO LTD

Paper-based piezoelectric nano generator and preparation method thereof

The invention discloses a paper-based piezoelectric nano-generator and a preparation method thereof, and belongs to the technical field of nano-generators, the paper-based piezoelectric nano-generator is characterized in that BCZT ceramic particles with different crystal phases are prepared through a solid phase method, and then a first-layer film and a second-layer composite film are prepared through layer-by-layer tape casting and scraper height regulation and control methods. Compared with a one-layer film only containing one crystal phase, in the two-layer composite film containing two different crystal phases, two crystal phase BCZT ceramic particles are co-doped, so that the piezoelectric nano generator has two working modes of d33 and d31, and in the two-layer composite film, a three-dimensional hydrogen bond engineering strategy established between layers enables the two-layer composite film to have better mechanical properties. Different working modes and higher mechanical properties are combined, so that the piezoelectric nano generator prepared from the two layers of composite films can be used in a harsh mechanical environment.
Owner:XIAN SHUANGWANG ENG CONSULTING CO LTD

Use of an animal bifidobacterium lactis cp-9 in the preparation of a composition for aiding neurodevelopment, alleviating cognitive impairment and neural injury

PendingCN122271548AImprove or promote neurological developmentneurodevelopmental maintenanceBiotechnologyMicrobiology
This invention provides the application of *Bifidobacterium animalis* subsp. lactis CP-9 in the preparation of compositions that promote neurodevelopment and alleviate cognitive impairment and nerve damage. This invention discovers that *Bifidobacterium animalis* subsp. lactis CP-9 can improve abnormal neurodevelopment, cognitive impairment, and nerve damage, and has a protective effect on the nervous system and overall health. This novel application expands the application scope of *Bifidobacterium animalis* subsp. lactis as a probiotic, and is of great significance for further exploring the functions of probiotics and developing probiotics with higher nutritional and health benefits. It also opens up new avenues and solutions for protecting nervous system health and preventing nervous system diseases through dietary strategies.
Owner:AUSNUTRIA DAIRY CHINA +1

Artificial hybridization method for cultivating new yellow peony varieties by inter-subgroup induced pollination

The invention discloses an artificial hybridization method for cultivating a new yellow peony variety through guided pollination between subgroups. The method utilizes the flowering period inheritance of a fleshy flower disc subgroup, freezes and stores pollen due to its strong desiccation resistance to solve the problem of different flowering periods between subgroups, removes part of petals to promote ovary development, and treats guided pollen through ultraviolet irradiation to carry out artificial hybridization breeding between subgroups, fully taps the genetic material of yellow germplasm resources in the fleshy flower disc subgroup, solves the problem that the flowering periods of existing cultivated varieties are similar and yellow varieties are scarce in existing cultivated varieties, creatively completes the germplasm innovation of the new yellow peony variety, and has significant social and economic benefits.
Owner:LUOYANG ACADEMY OF AGRI & FORESTRY SCI +1

Method for topping Yunyan 87

The invention discloses a method for topping Yunyan 87. The method comprises the steps that tobacco plant transplanting is completed from April 25 to May 5, and classified jointing and topping are carried out according to different growth vigor (early blossoming, poor growth vigor, general growth vigor, good growth vigor and good growth vigor) of tobacco plants. The method specifically comprises the following steps: in early flowering and topping, a method of'topping without leaf removal 'is adopted, the pitch is lengthened by 5cm, 16 leaves are reserved, and the plant height is controlled to be 80-85cm after topping; the growth vigor is poor, 18 leaves, 20 leaves, 22 leaves and 24 leaves are reserved on common tobacco plants, good tobacco plants and good tobacco plants respectively, and the plant heights are controlled to be 90-95 cm, 100-105 cm, 110-115 cm and 120-125 cm. Tests prove that the method remarkably improves the tobacco leaf yield and economic benefits, the average output value per mu and the first-class tobacco proportion are greatly improved, and the method is superior to a traditional topping method. The method can effectively solve the problems of unreasonable group structure and low tobacco yield and quality in the low-latitude and high-altitude tobacco area.
Owner:GUIZHOU TOBACCO CO LIUPANSHUI CO

A carbon catalytic electrode material and its preparation method and application

The preparation method of the carbon material catalytic electrode material provided by the present invention can form a core-shell structure in which the core is a metal-N-doped carbon core with a low surface work function and the shell is a MAX semiconducting phase, the core or small microsphere inside the core-shell structure has a low surface work function, forming a high catalytic carbon core, and can prevent the direct contact between the catalytic carbon core and the electrolyte, greatly reducing the shedding of metal-doped atoms and the occurrence of side reactions, the outer polymer large microsphere inherits the topological structure of the phenolic-phenolic amine-pyrrole polymer, can effectively regulate the carbonization reaction process of the conjugated skeleton, and the side chain carbon formed while the shell directly constructs a developed pore structure can further selectively adsorb and desorb the reactant, greatly improving the catalytic efficiency of the electrocatalytic material. Thereby, the catalytic electrode material finally prepared produces a large current density and a high Faraday efficiency at a low overpotential, and can ensure that the catalytic electrode material has high mechanical strength.
Owner:HENAN ACAD OF SCI POWER CORP +1

Method for preparing graphite from peat and graphite

The invention belongs to the field of high value-added utilization of peat resources and artificial graphite, and particularly relates to a method for preparing graphite from peat and graphite. The method comprises the following steps: screening peat; and graphitizing the screened peat to obtain crystalline flake graphite. According to the method, high-quality graphite is generated from peat, so that preparation of graphite by peat graphitization becomes possible, the prejudice of the prior art is overcome, the energy consumption cost of graphitization processing enterprises can be remarkably reduced, energy conservation and emission reduction are facilitated, and high value-added utilization of peat resources is realized.
Owner:ZAOZHUANG SANXING ADVANCED MATERIALS +1

Multitask scheduling optimization method and device based on explicit penalty

The invention relates to an explicit penalty-based multi-task scheduling optimization method and device. The method comprises the following steps of: distinguishing found peaks by using diversity information; then distributing population individuals to the peaks according to an explicit penalty function; next, adjusting the number of individuals on each peak to balance so as to ensure that each peak can be fully developed; besides, if the number of the captured peaks is reasonable, local search is selected to be carried out near each peak for deep development or global search is carried out in the whole decision space for enhancing the diversity of the population. According to the method, an explicit penalty function is constructed by combining an individual multi-modal function value with diversity quantized through the distance between an individual and a nearest and better neighbor thereof. The function is used for capturing a plurality of peaks at the same time and realizing search balance among the peaks so as to accelerate convergence speed, improve robustness and ensure stability and high efficiency in a complex scheduling environment.
Owner:CENT SOUTH UNIV

Method and system for closed circulation heat removal of depleted deep shale reservoir

The invention discloses a closed circulation heat extraction method and system for an exhausted deep shale reservoir, and belongs to the technical field of energy exploitation and utilization. The method comprises the following steps: (1) selecting a target well group; (2) transforming a target well group; the fracturing section sleeve of the target well group is sealed; the toe ends of the horizontal sections of the adjacent production wells of the target well group are communicated through the new well drilling section, and a closed circulation loop is established; (3) a fluid circulation test is carried out, and it is ensured that fluid leakage does not occur; after the test is completed, a heat-carrying working medium is injected into the closed circulation loop, and closed circulation heat removal is carried out. According to the invention, the existing waste-stopped cluster fracturing production well is transformed to carry out closed circulating heat extraction, so that the geothermal energy can be fully developed. And in addition, an ultra-long heating path is provided for the heat-carrying working medium through the long horizontal section, and the closed circulation heat removal effect can be effectively improved. In addition, the geothermal development cost can be effectively reduced, and good application prospects are achieved.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

High-yield planting method for pearl plums

The invention discloses a high-yield planting method for pearl plum saplings, which comprises the following steps: (1) selecting a planting field, and digging planting pits; (2) sterilizing the pearl plum saplings and then planting the pearl plum saplings; (3) performing tree form management on the pearl plum trees; (4) planting soil management; (5) topdressing management; (6) pest control management; and (7) harvesting. According to the planting method, green manure plants are sown between rows of pearl plum tree seedlings for soil ripening, so that the soil structure and the soil fertility are improved, the growth of pearl plum trees is promoted, and the crop yield is increased; pearl plum trees are trimmed and shaped in different growth periods, so that the pearl plum trees can utilize nutrition to the maximum extent, and the fruit setting rate and the fruit yield are increased; the nutrient requirements of the pearl plum trees are met through refined fertilization, it is guaranteed that the pearl plum trees grow fully, the fruit yield is increased accordingly, the average harvest amount of each pearl plum tree every year is 55 kg or above, the average weight of each pearl plum fruit is 23 g or above, and the soluble solid content reaches 14% or above.
Owner:GUANGXI TIANE JINGUIYUAN FOOD CO LTD

Black photoresist composition and use method thereof

The invention relates to a black photoresist composition and a use method thereof. The black photoresist composition comprises the following components: resin containing vinyl and carboxyl, a curing agent containing amino, a flatting agent and an initiator, the initiator includes a combination of a photoinitiator and a thermal initiator. According to the black photoresist composition provided by the invention, the photoinitiator and the thermal initiator are used as initiators together, so that the production cost of the black photoresist composition can be reduced, the curing efficiency of the black photoresist composition near a base material can be improved, the curing uniformity degree is improved, the adhesive force of the black photoresist composition is stronger, and the service life of the black photoresist composition is prolonged. The water boiling resistance and the UV aging resistance are higher; besides, the curing agent containing amino can improve the curing degree of the resin containing vinyl and carboxyl, and can block the carboxyl, so that the alkali-resistant cleaning agent cleaning capability of the black photoresist composition is improved.
Owner:GUANGZHOU YISHENG ENVIRONMENTAL PROTECTION TECH CO LTD

Construction method and application of autism spectrum disorder animal model

PendingCN122727308Aeasy to operatefully developed
The application provides a construction method and application of an autism spectrum disorder animal model, and belongs to the technical field of biology. Gper A gene knockout animal model is successfully constructed, and it is observed for the first time in an animal model that male individuals more stably exhibit autism spectrum disorder (ASD) core behavior phenotypes such as social impairment, increased repetitive stereotyped behavior and narrow interest than female individuals. The model successfully simulates the significant gender bias characteristics of human ASD, thereby providing direct in vivo evidence and an ideal experimental tool for studying the role of the estrogen signal pathway (especially the GPER-mediated non-genomic pathway) in the pathogenesis of ASD. Based on the model, in-depth analysis of the pathological mechanism of ASD can be systematically carried out, high-throughput drug screening can be carried out, and the effectiveness and safety of candidate drugs can be evaluated, so that new research strategies and transformation tools are ultimately provided for the precise intervention and individualized treatment of ASD.
Owner:NINGXIA MEDICAL UNIV

KR desulfurization slag curing method and modified desulfurization slag prepared through KR desulfurization slag curing method

The invention discloses a KR desulfurization slag curing method and modified desulfurization slag prepared through the KR desulfurization slag curing method, and belongs to the technical field of high-temperature steel slag treatment.The curing method comprises the steps that before slagging-off, a curing agent is added into a ladle, so that the KR desulfurization slag and the curing agent make full contact / are mixed; wherein the curing agent comprises a Na salt and TiO2; and cooling the KR desulfurization slag mixed with the curing agent to a temperature below the phase transition temperature at which beta-phase dicalcium silicate is converted into gamma-phase dicalcium silicate, so as to realize curing treatment of the KR desulfurization slag and obtain the modified desulfurization slag. According to the method, the curing agent is added into the KR desulfurization slag before slagging-off, so that the pulverization phenomenon of the KR desulfurization slag caused by dicalcium silicate phase change expansion can be effectively solved.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

Novel TiC-based high-wear-resistance composite material and preparation method thereof

The invention discloses a novel TiC-based high-wear-resistance composite material and a manufacturing method thereof, and relates to the technical field of wear-resistant alloy, the novel TiC-based high-wear-resistance composite material comprises the following raw materials by weight: 50-90 wt% of multi-element solid solution strengthened TiC-N i-Ta-Nb-Mo-V-Cr powder, 0.1-3.0 wt% of reduced molybdenum powder, 5.0-13.0 wt% of 70 ferromanganese powder, 0.1-3.0 wt% of reduced Ni powder, 0.1-3.0 wt% of carbon black, and the balance of iron powder. According to the TiC-based high-wear-resistance composite material manufactured through the scheme, multiple raw materials are combined to form multi-element solid solution strengthening, complete development of crystal grains can be promoted, the technical indexes of compactness, strength, hardness, toughness, impact resistance, wear resistance and the like of the crystal grains can be improved, and the defects that an existing TiC-based alloy is low in hardness, low in strength, poor in toughness, high in porosity, prone to abrasion, poor in wear resistance and the like are overcome.
Owner:HUNAN ZHIZHE NEW MATERIALS TECHNOLOGY CO LTD

Carbon material for lithium ion battery negative electrode and preparation method, lithium ion battery negative electrode and lithium ion battery

The present invention provides a kind of carbon material for lithium ion battery negative electrode and preparation method thereof, lithium ion battery negative electrode and lithium ion battery. The preparation method includes refining, coking and carbonization steps, wherein the sulfur content of raw oil in the refining step is less than 0.5wt%, and the coking step is first heated to 380-460℃, constant temperature 6-20h, and then continued to heat to 480-520℃, after no oil gas is produced, constant temperature 2-10h, and the pressure of the whole coking step is controlled at 0.5-8Mpa. The method does not require a complicated coke pulling process or a hydrogenation process, and only needs to control the sulfur content in the raw oil, and the content of asphaltene, colloid and ash of the raw oil is not limited, and the obtained carbon material can take into account the two performance indicators of capacity and rate when used as a lithium ion battery negative electrode.
Owner:PETROCHINA CO LTD

Liquid silica gel additive manufacturing customized early-stage appliance based on 3D printing

The invention relates to the technical field of appliances, in particular to a 3D printing-based liquid silica gel additive manufacturing customized early appliance, which comprises an upper occlusion sleeve and a lower occlusion sleeve, the upper part of the upper occlusion sleeve is provided with an upper tooth socket for the insertion of maxillary teeth, the upper part of the upper occlusion sleeve is provided with lip-cheek screens on the outer side, and the lower part of the upper occlusion sleeve is provided with a lower tooth socket for the insertion of the maxillary teeth. The lip-cheek screen can move in the circumferential direction of the upper occlusal sleeve, a tongue abutting part is arranged on the upper portion of the upper occlusal sleeve and located on the inner side of the upper occlusal sleeve, the lower portion of the lower occlusal sleeve is provided with a lower tooth groove allowing lower jaw teeth to be inserted therein, and the upper occlusal sleeve and the lower occlusal sleeve are detachably connected through a connector clip. According to the orthodontic appliance, models of maxillary dentition and mandibular dentition of a patient are formed, and liquid silica gel additive manufacturing is adopted by using a 3D printer, so that customization of the orthodontic appliance according to teeth of the patient is realized, the orthodontic appliance is easier to wear and better in orthodontic effect, meanwhile, through 3D printing, the manufacturing period of the orthodontic appliance is shortened, and the manufacturing difficulty is reduced.
Owner:BEIJING YILING TECH CO LTD

A multi-task scheduling optimization method and device based on explicit penalty

The present application relates to a multi-task scheduling optimization method and device based on explicit penalty, which uses diversity information to distinguish the peaks found; then, according to the explicit penalty function, the individuals of the population are assigned to these peaks; next, the number of individuals on each peak is adjusted to balance to ensure that each peak can be fully developed; in addition, if the number of peaks captured is reasonable, a local search is selected near each peak for in-depth development or a global search is performed in the entire decision space to enhance the diversity of the population. The method constructs an explicit penalty function by combining the individual multimodal function value with the diversity quantified by the distance between the individual and its nearest and better neighbor. The function is used to capture multiple peaks at the same time and achieve a search balance between these peaks to accelerate convergence, improve robustness, and ensure stability and efficiency in complex scheduling environments.
Owner:CENT SOUTH UNIV

Carbon-free reduction one-step synthesis method of Gd2O2S: Tb < 3 + > fluorescent material

The invention discloses a carbon-free reduction one-step synthesis method of a Gd2O2S: Tb < 3 + > fluorescent material. The method comprises the following steps: weighing raw materials Gd2O3, Gd2 (SO4) 3.8 H2O, Tb4O7, Na2CO3, C6H8O7 and (C6H10O5) n according to a stoichiometric ratio, and grinding until the raw materials are uniformly mixed; according to the method, a CO reducing atmosphere provided by traditional carbon powder calcination is replaced by an adding mode of combining two reducing agents, and a pure-phase fluorescent material is obtained through high-temperature one-step sintering. In the reaction process of preparing the Gd2O2S: Tb < 3 + > fluorescent material, generation of harmful gas is reduced, the problem of environmental pollution is solved, and the preparation method is a simple and environment-friendly preparation technology.
Owner:CHANGCHUN UNIV OF SCI & TECH