42 results about "Terbium chloride" patented technology

The invention belongs to the field of low-temperature electrochemical extraction and particularly relates to a method for preparing an aluminum-based rare earth alloy through near-room-temperature electrolysis. The method for preparing the aluminum-based rare earth alloy through near-room-temperature electrolysis is an electrolytic method, and a electrolyte adopted by the electrolytic method is formed by rare earth chloride and ionic liquid, wherein the ionic liquid accounts for 96-98% of the total mass of the electrolyte, the rare earth chloride accounts for 2-4% of the total mass, and the rare earth chloride is one of neodymium chloride, lanthanum chloride, cerium chloride, scandium chloride, yttrium chloride, praseodymium chloride, samarium chloride, europium chloride, gadolinium chloride and terbium chloride. According to the technological for preparing the aluminum-based rare earth alloy through near-room-temperature electrolysis, operation is easy, and cost is low; and the technological reserve and theoretical support are provided for green extraction of the low-cost aluminum-based rare earth alloy.

The invention discloses water-soluble rare-earth terbium ion-doped cerium fluoride nanocrystallines and a preparation method thereof, and belongs to the technical field of fluorescent nano-crystalline materials and hydrothermal chemical method synthesis thereof. The rare-earth terbium ion-doped cerium fluoride nanocrystallines are rod-shaped or cube-like; and the polyethyleneimine is coated on the surfaces of the nanocrystallines. The preparation method comprises the following steps of: mixing cerium nitrate hexahydrate, terbium chloride hexahydrate, the polyethyleneimine and ethylene glycol in a certain ratio; reacting for 1 to 12 hours in a baking oven at the temperature of 160 to 240 DEG C; cooling a reaction product; washing the reaction product with water and ethanol; and drying in vacuum. The product has very high solubility, adjustable and controllable appearance, high particle stability and high fluorescence quantum yield, and also can be dispersed in different solvents. In the method, raw materials are cheap and easy to obtain; the process is simple; the cost is low; the process repeatability is high; and the nanocrystallines have a potential application value in the field of biomarkers.

The invention relates to a luminescent material with cyclotriphosphazene cross-linked rare-earth complexes and a method for preparing the luminescent material. A general structural formula of the cyclotriphosphazene cross-linked rare-earth complexes is shown. Hexa-(4-potassium formate based phenoxy) cyclotriphosphazene is used as ligand and reacts with terbium chloride and europium chloride to obtain the cyclotriphosphazene cross-linked rare-earth complexes. The luminescent material and the method have the advantages that the complexes are of cross-linked netted structures, rare-earth ions are appropriately spaced from one another, and accordingly concentration quenching of the rare-earth ions can be prevented; each single molecule is provided with multiple luminescent centers, and accordingly the complexes are excellent in luminescent performance.

The invention discloses a method for infiltrating dysprosium of a neodymium-iron-boron magnet. The method comprises the following steps: S1, taking and smashing neodymium-iron-boron sheets, adding dysprosium oxide powder, and carrying out ball-milling refining, compression molding of a green body, sintering and tempering to obtain the neodymium-iron-boron magnet; S2, taking the neodymium-iron-boron magnet to be washed, and carrying out acid pickling, ethyl alcohol cleaning and drying to complete the pretreatment of the neodymium-iron-boron magnet; S3, ultrasonically dissolving dysprosium chloride, terbium chloride and aluminum chloride into ethyl alcohol respectively, and stirring and mixing with sodium polyacrylate, polyurethane and ethyl alcohol to obtain a dysprosium infiltrated solution; S4, adding a part of the dysprosium infiltrated solution into a container, adding the neodymium-iron-boron magnet, then continuously adding the dysprosium infiltrated solution until the liquid level of the dysprosium infiltrated solution is higher than the interface of the neodymium-iron-boron magnet, heating the container, carrying out heat preservation and then ultrasonic treatment, taking out the neodymium-iron-boron magnet for drying, packaging the neodymium-iron-boron magnet with an iron sheet, carrying out vacuum aging treatment, and cooling to room temperature to complete the dysprosium infiltration of the neodymium-iron-boron magnet. According to the method disclosed by the invention, the using amount of dysprosium is small, the comprehensive utilization rate is high, the permeation effect is good, and the treatment cost is low.

The invention relates to the technical field of chemical engineering and particularly discloses a fluorescent substance based on an amino acid deep eutectic solvent and a preparation method of the fluorescent substance. The fluorescent substance based on the amino acid deep eutectic solvent comprises the following ingredients: the deep eutectic solvent and rare earth chloride at a mass ratio of (10-20):1, wherein rare earth chloride is at least one of europium chloride, lanthanum chloride, terbium chloride or gadolinium chloride; and the deep eutectic solvent comprises an alcohol compound andamino acid at a mole ratio of (5-10):1. The fluorescent substance based on the amino acid deep eutectic solvent can achieve a uniform luminescence effect, and is good in heat stability, green and environmentally friendly.

A hybrid luminescent material formed by embedding a terbium complex in inorganic nanoparticles and a preparing method thereof are disclosed. The method includes preparing an ethanol solution of terbium chloride; reacting absolute ethyl alcohol, acetylacetone, 1,10-phenanthroline, and the ethanol solution of the terbium chloride to prepare an rear earth terbium organic complex solution; reacting absolute ethyl alcohol, aqueous ammonia and tetraethyl orthosilicate to prepare a nanometer silica solution; centrifuging a solution obtained after mixing and reacting the rear earth terbium organic complex solution and the nanometer silica solution; and then performing alcohol washing and drying steps to obtain the material. The method which is simple and easy to operate and used for preparing a photoluminescence material is disclosed. The hybrid luminescent material prepared by the method has a uniform particle size, can be uniformly dispersed in absolute ethyl alcohol, and has stable fluorescence properties.

The invention discloses a method for preparing high-purity terbium oxide, belonging to the technical field of rare-earth separation. The method comprises the following steps of feeding mixed rare-earth oxide, hydrochloric acid and pure water into a container with a stirring device and a heating device, stirring, and filtering so as to obtain a mixed rare-earth chloride solution; adding the mixed rare-earth chloride into another container with a stirring device, and continuously stirring so as to obtain a separated material; by taking the separated material as a raw material, continuously extracting and separating by using a first extraction agent, a caustic soda liquid and a returning fluid so as to obtain a rich terbium chloride solution; by taking the rich terbium chloride solution as another raw material, adding a second extraction agent and the returning fluid, further extracting and separating so as to obtain a high-purity terbium chloride solution; introducing the high-purity terbium chloride solution into a settling pond, and filtering so as to obtain solid oxalate terbium; and introducing the solid oxalate terbium into a roller table type tunnel kiln for firing, controlling the firing temperature and the firing time, discharging from the roller table type tunnel kiln so as to obtain high-purity terbium oxide, wherein the purity of the terbium oxide is 99.9%. The first-pass yield is high, and the preparation cost is low.

The invention provides a preparation method of a novel fluorescent PVC wire / cable shield material. The preparation method comprises the following steps: (1) heating and stirring a terbium chloride solution and a phenanthroline solution together, adding a p-toluic acid solution, further stirring, standing, filtering, washing, and drying to obtain white powder; dissolving the white powder in dimethyl fumarate, adding distilled water to form a suspension, then adding sodium chloride and stearic acid, stirring, taking out, filtering and drying to obtain fluorescent powder; (2) adding ACR to the fluorescent power, stirring and mixing, extruding, melt spinning to obtain fluorescent fibers; (3) adding PVC, nano-montmorillonite, a heat stabilizer, a plasticizer, calcium carbonate, a coupling agent and an antioxidant together into a high speed stirrer for stirring to obtain a mixed material; and (4) dissolving the mixed material into a solvent, adding the fluorescent fibers, uniformly stirring to obtain a prepreg, drying, transferring to a die, heating, pressurizing and insulating heat, and naturally cooling to room temperature to obtain the fluorescent PVC wire / cable shield material. The shield material prepared by the preparation method provided by the invention has a relatively good fluorescent performance.

The invention discloses a high-molecular luminescent material of terbium-complex-grafted modified ethylene-acrylic acid copolymer and a preparation method thereof. The preparation method comprises thefollowing steps: firstly adopting terbium chloride hexahydrate, an aminophenyl derivative and second ligand to prepare a rare-earth complex, then carrying out surface acylating-chlorination modification on an ethylene-acrylic acid copolymer film, and then utilizing the rare-earth complex to modify the acylating-chlorinated ethylene-acrylic acid copolymer film. The prepared luminescent material has a strong luminous peak in a 544nm-wavelength area, has good thermal stability, and is suitable for being applied to fluorescent packaging materials; in addition, the preparation method has the advantages of low energy consumption, low requirements on equipment, environment-friendliness, low price and wide source of a used solvent, moderate reaction condition, and no need of high temperature andhigh pressure.

The invention discloses a preparation method of a macroporous mayenite fluorescent material. The method comprises the following steps of (1) at room temperature, dissolving a phase separation inducerinto a mixed solvent; after the magnetic stirring, adding aluminum chloride hexahydrate and calcium chloride dihydrate used as precursors; adding terbium chloride nonahydrate, drying control agents and chelating agents; after the uniform stirring, adding gel accelerators; performing ultrasonic treatment for 50 to 70 seconds; (2) putting sol liquid obtained in the step (1) into a sealed container;performing gelling at 50 to 70 DEG C; performing aging for 24+ / - 2h; (3) putting the aged gel obtained in the step (2) into a container; performing drying for 3 to 4d at 50 to 70 DEG C; then, performing heat treatment for 2 to 3h at 900 to 1300 DEG C to obtain the macroporous mayenite fluorescent material. By using the method, the rare earth element doping mayenite fluorescent material with controllable pore dimension, higher porosity and continuous macroporous structures can be obtained.

The invention provides a rare-earth double-doped functional nanocomposite material and a preparation method thereof. The method comprises the process that a sodium hydroxide solution is added into a rare earth ion solution containing gadolinium chloride, europium chloride and terbium chloride; stirring reaction is performed to obtain a colloidal transparent solution; the solvents of the rare earthion solution and the sodium hydroxide solution are polylol, so that the colloidal transparent solution and coating liquid react under heating condition; transparent suspension with a core-shell structure is obtained; the coating liquid contains 3-aminopropyl triethoxysilane, tetraethyl orthosilicate, water, triethylamine and polylol; impurities in the transparent suspension with the core-shell structure are removed; vacuum drying is performed; then, calcination is performed to obtain a product. Tb<3+> and Eu<3+> lanthanide ions are doped into a Gd2O3 substrate; crystal nucleuses are subjectedto organic polysiloxane layer coating; the problem of low Gd2O3 single-doped fluorescence intensity is solved; the biocompatibility of the material is also improved; the fluorescence lifetime is prolonged.

The invention discloses a chemical constitution of a glass film containing rare earth ion-doped Cs2LiYCl6 microcrystalline and a sol-gel preparation method of the glass film. The glass film is characterized by comprising the following components by mol percent: 71mol%-75mol% of germanium dioxide, 5mol%-10mol% of aluminum sesquioxide, 5mol%-10mol% of phosphorus pentoxide, 8mol%-12mol% of Cs2LiYCl6 and 1mol%-3mol% of rare-earth chloride, wherein rare-earth chloride is one of cerium chloride, europium chloride or terbium chloride. The sol-gel preparation method has the advantages that sol-gel is a low-temperature wet chemical method glass preparation technique, and glass is prepared by virtue of hydrolysis and chemical polymerization reaction of precursor raw materials, and a film material can be prepared under certain liquid viscosity; by virtue of low temperature synthesis conditions, the decomposition and the volatilization of the chloride raw material can be effectively prevented.

The invention relates to a method for preparing a rare-earth metal terbium thin film through low-cost electrochemical deposition, and belongs to the field of rare-earth metal low-temperature electrodeposition. The method for preparing the rare-earth metal terbium thin film through low-cost electrochemical deposition is characterized by comprising the following process steps: lithium nitrate is dissolved in DMI to obtain a DMI electrolyte of the lithium nitrate, the DMI electrolyte of the lithium nitrate is placed into an electrolytic bath, then anhydrous terbium chloride is added into the electrolytic bath, stirring and mixing are carried out in the electrolytic bath, thus the DMI electrolyte of the lithium nitrate and the anhydrous terbium chloride form a uniform system, the temperature of the whole system is controlled to be 25-80 DEG C, and the electrolytic voltage range is minus 2.0-minus 2.4 V vs Ag; and in the electrodeposition process, anhydrous terbium chloride is replenished into the electrolytic bath every a period of time, and the molar concentration of the terbium chloride is controlled to be the initial concentration + / -2%. According to the method, energy consumption and the production cost are lowered remarkably while the rare-earth metal terbium film is prepared efficiently.

The invention discloses a sol-gel preparation method of glass and glass film containing rare earth ion doped Ba2GdCl7 micro-crystal. The sol-gel preparation method is characterized by adopting the following preparation raw materials: 53-59mol% of tetraethoxygermanium, 8-16mol% of gallium ethoxide, 16-24mol% of barium chloride, 8-12mol% of gadolinium chloride and 1-3mol% of rare earth chloride, wherein rare earth chloride is cerium chloride, europium chloride or terbium chloride. The sol-gel preparation method has the advantages that a sol-gel method is a technology for preparing glass by low-temperature aqueous chemical synthesis and is characterized by obtaining glass and the glass film through precursor raw material hydrolysis and polymerization chemical reaction processes, so that the film material can be prepared under the condition of certain liquid viscosity; the low-temperature synthesis condition can conduce to effectively preventing decomposition and volatilization of the chloride raw material.

The invention discloses a waterborne potassium silicate zinc-rich primer capable of preventing easy cracking and applied to surface treatment of a steel structure. The zinc-rich primer is prepared from the following raw materials in parts by weight: 106-108 parts of flake zinc powder, 13-15 parts of potassium silicate, 6.4-7.4 parts of a styrene-acrylic emulsion, 1.4-1.6 parts of grape seed oil, 3.5-4.2 parts of amino propyl trimethoxy silane, 1.3-1.6 parts of terbium chloride, 6-8 parts of anti-crack fibers, 2-3 parts of paraffin, 9-10 parts of stainless steel powder, 0.8-1.2 parts of tallow amine, 2.4-2.7 parts of nano aluminum nitride, 0.3-0.5 part of boric acid and 24-26 parts of de-ionized water. According to the zinc-rich primer provided by the invention, the styrene-acrylic emulsion, which is modified by virtue of waterborne epoxy resin emulsion and the grape seed oil, is added to the raw materials and is combined with the potassium silicate solution, so that a binding agent is formed, the flask zinc powder, which is modified by virtue of silane doped rare earth, is taken as a pigment, and other effective adjuvants are combined, so that the prepared zinc-rich primer has the advantages of being good in dispersibility, strong in film adsorbability, long in period of preventing corrosion and the like, and the zinc-rich primer cannot get cracked easily after being dried.

The invention discloses a preparation method of terbium oxide with D50 being 2-3 microns. The preparation method concretely comprises the following steps of firstly, preparing an oxalic acid solution,adding polyethylene glycol 20000 with a set mass ratio, performing stirring until uniform dispersion, then slowly dropwise adding a terbium chloride solution with the concentration being 0.20.4mol / Lwhile performing stirring, performing ageing for 4-5 hours at 0-5 DEG C, then performing suction filtration and washing with the washing temperature being larger than 95 DEG C, performing dry filtering after washing to obtain precipitates, and searing the precipitates for 3-5 houses at 850-900 DEG C to prepare the terbium oxide with D50 being 2-3 microns. The prepared terbium oxide with a specificparticle size range can further improve some defects of some lithium iron phosphate materials and thus effectively improves the specific capacity, the cycling stability, the discharge rate and the like of a battery; and the terbium oxide with the particle size expresses better chemical performance and electronic performance in doping and improvement of lithium battery cathode materials.

The invention provides a novel terbium complex composite fluorescent material and a production method thereof. The production method comprises the steps of using tetraterbium heptaoxide for generatingterbium chloride under the action of hydrochloric acid and hydrogen peroxide, and then subjecting the terbium chloride, o-chlorobenzoic acid and calcium carbonate to reaction to produce the novel terbium complex composite fluorescent material. Moreover, through analysis experiments of ultraviolet analysis, infrared analysis, fluorescence analysis, thermogravimetry-differential thermal analysis, laser particle size analysis, XRD and the like, the performance of the produced composite fluorescent material is characterized. According to the provided terbium complex composite fluorescent material, not only is the cost of a rare earth complex luminescent material reduced, but also the produced luminescent material is environmentally friendly and good in thermal stability, and is a good high-temperature-resistant luminescent material.

The invention discloses a method for preparing high-purity terbium oxide, belonging to the technical field of rare-earth separation. The method comprises the following steps of feeding mixed rare-earth oxide, hydrochloric acid and pure water into a container with a stirring device and a heating device, stirring, and filtering so as to obtain a mixed rare-earth chloride solution; adding the mixed rare-earth chloride into another container with a stirring device, and continuously stirring so as to obtain a separated material; by taking the separated material as a raw material, continuously extracting and separating by using a first extraction agent, a caustic soda liquid and a returning fluid so as to obtain a rich terbium chloride solution; by taking the rich terbium chloride solution as another raw material, adding a second extraction agent and the returning fluid, further extracting and separating so as to obtain a high-purity terbium chloride solution; introducing the high-purity terbium chloride solution into a settling pond, and filtering so as to obtain solid oxalate terbium; and introducing the solid oxalate terbium into a roller table type tunnel kiln for firing, controlling the firing temperature and the firing time, discharging from the roller table type tunnel kiln so as to obtain high-purity terbium oxide, wherein the purity of the terbium oxide is 99.9%. The first-pass yield is high, and the preparation cost is low.

The invention discloses a corrosion-resistant PI thrust pad and a preparation method thereof. The corrosion-resistant PI thrust pad is mainly prepared from graphene oxide, chitosan, toluene diisocynate, pyromellitic dianhydride and terbium chloride. Graphene oxide and chitosan are mixed, so the strength and wear resistance of the thrust pad can be improved; meanwhile, chitosan can be protonized by adding acetic acid, so the surface of chitosan is positively charged, the surface has a large number of positive charges, the chitosan can be combined with graphene oxide with electronegativity more easily, and the combination strength is higher; the surface of the thrust pad is treated by perfluorobutane, so that the hydrophilicity of the thrust pad can be reduced, the hydrophobicity of the thrust pad can be improved, and the corrosion resistance of the thrust pad can be improved; and the corrosion-resistant PI thrust pad prepared by the invention has good corrosion resistance, solves the problem of poor transmission efficiency caused by corrosion of the thrust pad in the use process, and has good practicability.

The invention provides a terbium coordination compound composite fluorescent material taking an inorganic salt as a matrix, and a preparation method thereof. The preparation method comprises the following steps: carrying out a reaction on terbium chloride, phthalic acid and calcium carbonate to prepare a terbium coordination compound composite fluorescent material taking calcium carbonate as a matrix; and characterizing the performances of the prepared composite fluorescent material through analysis experiments such as ultraviolet analysis, infrared analysis, fluorescence analysis, thermogravimetric difference thermal analysis, XRD and the like. According to the terbium coordination compound composite fluorescent material with the inorganic salt as the matrix, the use amount of rare earthions is reduced, the cost of the rare earth coordination compound fluorescent material is reduced, and the prepared composite fluorescent material is environmentally friendly, good in thermal stability and long in fluorescent service life. The preparation method is simple, and the composite fluorescent material can be well separated from the solution.

The invention discloses water-soluble rare-earth terbium ion-doped cerium fluoride nanocrystallines and a preparation method thereof, and belongs to the technical field of fluorescent nano-crystalline materials and hydrothermal chemical method synthesis thereof. The rare-earth terbium ion-doped cerium fluoride nanocrystallines are rod-shaped or cube-like; and the polyethyleneimine is coated on the surfaces of the nanocrystallines. The preparation method comprises the following steps of: mixing cerium nitrate hexahydrate, terbium chloride hexahydrate, the polyethyleneimine and ethylene glycol in a certain ratio; reacting for 1 to 12 hours in a baking oven at the temperature of 160 to 240 DEG C; cooling a reaction product; washing the reaction product with water and ethanol; and drying in vacuum. The product has very high solubility, adjustable and controllable appearance, high particle stability and high fluorescence quantum yield, and also can be dispersed in different solvents. In the method, raw materials are cheap and easy to obtain; the process is simple; the cost is low; the process repeatability is high; and the nanocrystallines have a potential application value in the field of biomarkers.

The invention provides a preparation method of high-purity cerium oxide for compact fluorescent lamps. The preparation method includes the steps: treating a to-be-treated sample with sulfuric acid toobtain a primary treatment solution and first solid slag; carrying out a precipitation reaction of the primary treatment solution to obtain a rare earth precipitate containing cerium hydroxide; carrying out a neutralization reaction of the rare earth precipitate with hydrochloric acid to obtain a secondary treatment solution containing rare earth chloride; carrying out primary extraction treatmenton the secondary treatment solution by a first organic extractant, and then carrying out back extraction treatment on an extraction phase obtained in the primary extraction treatment process by a back-extractant, to obtain an extraction residual solution containing cerium chloride and an extraction solution containing terbium chloride; carrying out secondary extraction treatment on the extractionresidual solution with a second organic extractant to obtain a cerium chloride solution; and carrying out precipitation and burning treatment on the cerium chloride solution sequentially to obtain high-purity cerium oxide. The cerium oxide prepared by the method has the advantages of high purity, high direct yield and good environmental protection.

The invention relates to the technical field of chemical industry, and specifically discloses a fluorescent substance based on an amino acid deep eutectic solvent and a preparation method thereof. The fluorescent substance based on amino acid deep eutectic solvent includes the following components: deep eutectic solvent and rare earth chloride, the mass ratio of the deep eutectic solvent to rare earth chloride is 10-20:1, the rare earth chloride The compound is at least one of europium chloride, lanthanum chloride, terbium chloride or gadolinium chloride, and the deep eutectic solvent is composed of an alcohol compound and an amino acid with a molar ratio of 5-10:1. The fluorescent substance based on the amino acid deep eutectic solvent provided by the invention can achieve a uniform light-inducing effect, has good quality and thermal stability, and is environmentally friendly.

The invention discloses a method for producing terbium oxide and dysprosium oxide, which comprises the following steps of: (1) treating a rare earth chloride liquid, containing terbium and dysprosiumelements and obtained by extracting and separating samarium and europium, through a resin column filled with a crosslinked styrene-divinylbenzene polymer to obtain treated rare earth chloride feed liquid; (2) carrying out dysprosium-holmium extraction, gadolinium-terbium extraction and terbium-dysprosium extraction by taking the treated rare earth chloride feed liquid as a separation feed liquid to obtain a terbium chloride solution and a dysprosium chloride solution; and (3) respectively precipitating and firing the terbium chloride solution and the dysprosium chloride solution to obtain terbium oxide and dysprosium oxide. The content of ytterbium oxide impurities in dysprosium oxide and terbium oxide prepared by the method is low.

The invention relates to a method for preparing 6N-grade terbium chloride through extraction and separation. The method comprises a saponification section, a SmEuGdTb / TbDyHo full-load fractional extraction system, a SmEuGd / Tb full-load fractional extraction system, a Tb / DyHo full-load fractional extraction system and a washing section. Rare earth element impurities including samarium, europium, gadolinium, dysprosium and holmium in the 4N-grade terbium chloride aqueous solution are removed through P229 extraction and separation, and a 6N-grade terbium chloride aqueous solution is prepared. The purity of terbium in a target product 6N-grade terbium chloride aqueous solution is 99.99991%-99.99998%, and the yield of terbium is 96%-98%. The method has the advantages of high product purity, high terbium yield, low reagent consumption, good separation effect, low production cost and the like.

The invention relates to a method for preparing rare earth metal terbium thin films by electrochemical deposition at low cost, and belongs to the field of low-temperature electrodeposition of rare earth metals. A method for preparing rare earth metal terbium thin films by electrochemical deposition at low cost, which is characterized by including the following process steps: dissolving lithium nitrate in DMI to obtain a DMI electrolyte of lithium nitrate, placing the DMI electrolyte of lithium nitrate in an electrolytic tank, then add anhydrous terbium chloride to it, stir and mix in the electrolytic tank to form a uniform system, control the temperature of the entire system at 25~80℃, and the electrolysis voltage range -2.0~-2.4V vs Ag; electrodeposition During the process, anhydrous terbium chloride is added to the electrolytic cell at regular intervals to control the molar concentration of terbium chloride to the initial concentration ±2%. The method of the invention can efficiently prepare a rare earth metal terbium film while significantly reducing energy consumption and production costs.

The invention discloses a preparation method for a glass film containing rare-earth-ion-doped gadolinium chloride microcrystalline. The technical scheme is characterized in that the preparation raw materials comprise, in percent by mole, 70-74.5 mol% of ethyl orthosilicate, 10-15 mol% of butyl titanate, 10-15 mol% of gadolinium chloride, and 0.5-5 mol% of a rare-earth chloride, wherein the rare-earth chloride is one of europium chloride and terbium chloride. The advantages comprise that a sol-gel technology is a low-temperature wet-chemical-process glass preparation technology, the glass is obtained through hydrolysis of a precursor raw material and a polymerization chemical reaction process, the film material can be prepared under a certain liquid viscosity condition, and the low-temperature synthesis condition is capable of effectively preventing the chloride raw material from being decomposed and volatilized; and because of volatilization and decomposition of the solvent, certain micropores are generated in the glass prepared through the sol-gel method, and the micropores provide good environment for generation of nanometer chloride microcrystalline, and thus crystallized-particle nonuniformity and glass devitrification caused by incomplete uniformity of melt-glass chemical compositions and crystallization processing temperature are overcome to a certain degree.

The invention relates to a luminescent material with cyclotriphosphazene cross-linked rare-earth complexes and a method for preparing the luminescent material. A general structural formula of the cyclotriphosphazene cross-linked rare-earth complexes is shown. Hexa-(4-potassium formate based phenoxy) cyclotriphosphazene is used as ligand and reacts with terbium chloride and europium chloride to obtain the cyclotriphosphazene cross-linked rare-earth complexes. The luminescent material and the method have the advantages that the complexes are of cross-linked netted structures, rare-earth ions are appropriately spaced from one another, and accordingly concentration quenching of the rare-earth ions can be prevented; each single molecule is provided with multiple luminescent centers, and accordingly the complexes are excellent in luminescent performance.

The invention discloses a glass film containing rare earth ion doped K2LaCl5 microcrystal and a preparation method thereof. The glass film is characterized by comprising the following components in percentage by mole: 78 percent of diboron trioxide, 8-15 percent of aluminum oxide, 6-11 percent of K2LaCl5 and 1-3 percent of a rare-earth chloride, wherein the rare-earth chloride refers to one of cerium chloride, europium chloride or terbium chloride. The glass film disclosed by the invention has the advantages that sol-gel refers to a low-temperature wet chemistry method glass preparation technology, and glass is obtained by precursor material hydrolysis and polymerization reaction process, and therefore, a film material can be prepared at a certain liquid viscosity. Moreover, due to low-temperature synthesis condition, decomposition and volatilization of chloride raw materials can be effectively prevented. Due to volatilization and decomposition of solvents, the glass prepared by the sol-gel method generates a certain micro-pores in the materials, and the micro-pores provide a good environment for generating nano chloride microcrystal, so that the phenomenon that non-uniformity of crystallization particles and glass devitrification are caused by chemical constituents of the melted glass and incomplete uniformity of crystallization treatment temperature can be avoided to a certain degree.

The invention belongs to the field of low-temperature electrochemical extraction, and particularly relates to a method for electrolytically preparing aluminum-based rare earth alloys in a near room temperature environment. A method for preparing aluminum-based rare earth alloys by near room temperature electrolysis. The method is an electrolysis method. The electrolyte used in the electrolysis method consists of rare earth chloride and ionic liquid, wherein the ionic liquid accounts for 96 to 98% of the total mass of the electrolyte. , rare earth chloride accounts for 2% to 4% of the total mass. The rare earth chloride is neodymium chloride, lanthanum chloride, cerium chloride, scandium chloride, yttrium chloride, praseodymium chloride, samarium chloride, chloride Europium, one of gadolinium chloride and terbium chloride. The near room temperature electrolytic preparation process of aluminum-based rare earth alloys of the present invention has simple operation and low cost. Provide technical reserves and theoretical support for low-cost green extraction of aluminum-based rare earth alloys.