99 results about "Titanium ion" patented technology

The invention relates to the technical field of coating preparation, and discloses a high-adhesion quick-drying inorganic zinc silicate shop primer and a preparation method thereof.The high-adhesion quick-drying inorganic zinc silicate shop primer is prepared from modified zinc powder, modified graphite powder, a sodium silicate solution, alpha-phase nanometer AlO, a quick-drying agent, an adhesion promoter, heat-resistant filler, a dispersing agent, a defoaming agent and a diluting solvent; the quick-drying agent is prepared by compounding zinc naphthenate, EDTA and titanium isopropylate according to the mass ratio of 1: (0.2-0.3): (0.4-0.6), the quick-drying agent accelerates the reaction by catalyzing hydrolysis of silicate through zinc salt, chelating of EDTA and metal ions, titanium isopropylate provides titanium ions to synergistically form a film and improve the quick-drying efficiency, the adhesion promoter is prepared by compounding KH-560 and E-44 epoxy resin according to the mass ratio of 3: 1, and the adhesion promoter is prepared by compounding epoxy resin and epoxy resin. The adhesion promoter enhances interface mechanical occlusion and adhesion through silane bonding base materials and epoxy resin, other raw materials are matched with the adhesion promoter to accelerate the drying speed of the primer, and a coating coated with the primer is not prone to stripping and peeling. The application has the effects of improving the adhesive force and drying speed of the inorganic zinc silicate shop primer.

The invention relates to the technical field of coating materials, and discloses a pure titanium micro-arc oxidation coating for a vacuum cup and a preparation method thereof.The preparation method comprises the following steps that surface pretreatment is conducted, specifically, a pure titanium vacuum cup inner container workpiece is sequentially subjected to degreasing, acid pickling and ultrasonic cleaning; preparing an electrolyte, namely adding 15-25 parts by weight of a silicon-containing compound, 5-12 parts by weight of metal salt, 3-8 parts by weight of an antibacterial agent and 1-5 parts by weight of a stabilizer into deionized water, and controlling the pH value to be 8.5-10.5; and performing micro-arc oxidation treatment. According to the invention, a silane compound in the micro-arc oxidation electrolyte contains a high-activity silanol group which is subjected to condensation reaction with titanium hydroxyl on the surface of a pure titanium substrate under the action of an electric field to form stable covalent bonding, so that the bonding strength of the coating and the substrate is enhanced; metal ions generated by metal salt electrolysis are co-deposited with titanium ions through plasma discharge, a composite oxide structure is constructed, and micro defects on the surface of a titanium substrate are sealed.

The invention provides a method for removing a low-temperature oxidation film on the surface of a titanium alloy plate strip and a regeneration method of a used solution, and relates to the technical field of metal surface cleaning. Comprising the steps that firstly, a titanium alloy plate strip is subjected to rolling deformation, cooled and then soaked in a mixed aqueous solution of oxalic acid and sodium chloride at the temperature of 60-80 DEG C, meanwhile, the titanium alloy plate is connected to a positive electrode of a direct-current power source, and the mixed aqueous solution used in the soaking process serves as an electrolyte to remove an oxidation film on the surface of the titanium alloy through electrolysis. A mixed solution of oxalic acid and sodium chloride is adopted as an electrolyte to soak and electrolyze a titanium alloy plate strip, on one hand, the complexing effect of oxalic acid on titanium ions effectively promotes chemical dissolution of an oxide layer, on the other hand, chloride ions assist in stripping the oxide layer through pitting corrosion, and the reducibility of oxalic acid can inhibit excessive corrosion of a matrix. A titanium alloy plate strip is connected to a direct-current power supply, and a dense titanium dioxide oxide layer is rapidly dissolved by means of the synergistic effect of electrolysis. And the solution regeneration method is used, so that the green recycling of the solution can be realized.

The invention provides a lithium manganese iron phosphate / titanium carbide heterojunction positive electrode material, a preparation method thereof, a positive plate and a lithium ion battery. The chemical structural formula of the lithium manganese iron phosphate / titanium carbide heterojunction positive electrode material is LiMn1-xFexPO4 / Ti3C2, wherein x is more than or equal to 0.1 and less than or equal to 0.9. In the lithium manganese iron phosphate / titanium carbide heterojunction positive electrode material, a part of titanium ions occupy an M site in lithium manganese iron phosphate to form a metal-hole pair, so that the Jahn-Teller effect can be reduced, the dissolution of manganese ions caused by lattice distortion in the circulation process can be reduced, and the service life of the lithium manganese iron phosphate / titanium carbide heterojunction positive electrode material is prolonged. Further, the structural stability and the cycle performance of the lithium manganese iron phosphate / titanium carbide heterojunction positive electrode material can be improved. Besides, reversible high capacity is realized by constructing a heterostructure and titanium carbide absorbing and utilizing lattice oxygen, and a stable positive electrode / electrolyte interface is obtained, so that a positive electrode system is favorably stabilized, and stable output of electrochemical performance is favorably promoted.

The present invention belongs to the technical field of titanium metal processing waste acid treatment, and specifically relates to a method for regenerating titanium metal pickling waste liquid. The regeneration method comprises the following steps: adding a fluorosilicic acid solution to the titanium metal pickling waste liquid and mixing uniformly, then adding a potassium salt solution, stirring the reaction at room temperature, and centrifuging or filtering after the reaction is complete to separate the solid portion as a potassium fluorotitanate / potassium fluorosilicate complex; and the liquid portion as a regenerated titanium metal pickling liquid. The method of the present invention can significantly improve the titanium ion recovery rate without destroying the pickling liquid components. The titanium metal pickling waste liquid can be regenerated and reused, and has the advantages of good treatment effect and simple treatment process.

The present application belongs to the field of petroleum chemical catalysis technology, and relates to a process for mass production of Ti-Beta zeolite based on local structure reconstruction method. The main technical features include: using water vapor assisted tetraethylammonium bromide template agent and alcohol amine weak organic base, and preparing Ti-Beta zeolite by local desilicon etching and repair reconstruction on the hydroxyl pit of dealuminated Beta zeolite. The benefits of the present application include: the combination of tetraethylammonium bromide template agent and alcohol amine weak organic base, and the limitation of the amount of silicate dissolved by the channel condensate liquid generated by dealuminated Beta zeolite and the liquid film on the surface of zeolite solid in saturated steam, which makes it easier to control the etching desilicon of the hydroxyl pit of dealuminated Beta zeolite and improves the receiving capacity of the hydroxyl pit to titanium ions with larger volume. The local structure defects generated by controllable etching desilicon can be directly repaired by using the quaternary ammonium cation provided by the TEABr template agent as a directing agent, so that the present application does not need to be assisted by fluoride or / and aluminum source.

The invention discloses a ferrous sulfate purification method and a ferrous sulfate purified product, and the method comprises the following steps: dissolving a titanium dioxide by-product in deionized water to obtain a ferrous sulfate saturated solution; under the condition that reducing gas is introduced into the ferrous sulfate saturated solution, mixing sodium sulfide with the ferrous sulfate saturated solution, and filtering to obtain a first purified solution; mixing sodium sulfide with the first purified solution, and filtering to obtain a second purified solution; and carrying out concentration crystallization on the second purified solution, and carrying out suction filtration and drying to obtain a ferrous sulfate purified product. Iron powder does not need to be added, oxidation of ferrous ions is inhibited through reducing gas, sodium sulfide is added in stages to enable impurities with high activity to react to generate sulfide precipitates, the sulfide precipitates are filtered, the content of impurities such as titanium ions, magnesium ions, manganese ions and calcium ions is greatly reduced, the impurity removal effect is good, and finally concentration and crystallization are conducted through solubility difference. The purification purity of the ferrous sulfate purified product is generally as high as 99% or above.

A redox flow battery (RFB) is provided. The battery generally includes a catholyte including cerium ions, an anolyte including titanium ions, a porous cathode in contact with the catholyte, a porous anode in contact with the anolyte, and an ion exchange membrane positioned between the cathode and the anode, where the anode has a higher surface area than the cathode or the anode has a thickness greater than a thickness of the cathode, where the membrane is configured to restrict and / or prevent the passage of the cerium ions and / or the titanium ions and maintain ionic conductivity between the catholyte and the anolyte. A method for storing electricity and a method for generating an electrical current are also provided.

The invention relates to a high-purity ethylene production method and system. The production method comprises the following steps: S1, gasifying: pressurizing an industrial ethylene raw material and gasifying; s2, primary adsorption and purification: feeding the gasified industrial ethylene raw material gas into a primary adsorber for primary purification, and removing H2O, C2H2, CO2 and hydrocarbon impurities above C3 from the raw material gas through the primary adsorber; s3, secondary adsorption and purification: introducing the primarily purified ethylene gas subjected to primary adsorption and purification into a secondary adsorber, and carrying out adsorption-expansion desorption to obtain quasi-high-purity ethylene; s4, entering a multi-stage membrane filtration unit: enabling the quasi-high-purity ethylene subjected to secondary adsorption purification to sequentially penetrate through a plurality of membranes loaded with metal ions, so as to obtain high-purity ethylene; the metal ions are one or a mixture of more of silver ions, cobalt ions, copper ions and titanium ions. Compared with the prior art, the method provided by the invention has the advantages of short flow, low energy consumption, good separation effect, strong process continuity, high product purity and low impurity content, and can meet the production of high-purity ethylene above G5 requirements.

This invention discloses a class of polynuclear metal catalysts, their preparation methods, and their application in the catalytic alcoholysis of polyester polymers. The polynuclear metal catalyst comprises an organic ligand and metal ions (titanium ions, zirconium ions, or hafnium ions). The general chemical formula of the polynuclear metal catalyst is shown in formulas (I) and (II). The polynuclear metal catalyst of this invention can catalyze the rapid alcoholysis of general-purpose polyester polymers such as PET in alcohol solvents. The method is simple, safe, efficient, energy-saving, and yields high purity and high efficiency of the recovered monomers.

The invention discloses a photoresponse nano-enzyme array sensor as well as a preparation method and application thereof, and belongs to the technical field of neurotransmitter detection. The photoresponse nano enzyme array sensor comprises MOF1, MOF2 and MOF3, organic ligands of the MOF1, the MOF2 and the MOF3 are all ZnTCPP, and metal ions of the MOF1, the MOF2 and the MOF3 are respectively zinc ions, titanium ions and aluminum ions. By means of the large specific surface area of MOFs, the interaction between a reaction substrate and catalytic activity sites in the material is enhanced, the response sensitivity of the sensor is remarkably improved, the catalytic activity can be regulated and controlled through illumination according to the light response characteristic of the sensor, and dynamic signal amplification of neurotransmitters is achieved. The array sensor can be used for detecting various neurotransmitters and realizing accurate distinguishing and quantification within a few minutes. Even in a complex biological sample, the photoresponse nano-enzyme array sensor can still keep high precision.

The invention relates to the technical field of semiconductor manufacturing, and discloses a titanium etching solution preparation process based on a hydrogen peroxide-monoethanolamine system.The titanium etching solution comprises, by mass, 5%-15% of hydrogen peroxide, 5%-15% of monoethanolamine, 5%-15% of sodium hydroxide and the balance water. 5%-10% of monoethanolamine; 2%-5% of tris (hydroxymethyl) aminomethane; 0.5% to 1.5% of 2, 2 '-dipyridyl; and 0.1%-0.5% of a double-effect stabilizing and indicating agent. Trihydroxymethyl aminomethane and 2, 2 '-dipyridyl cooperate to stabilize hydrogen peroxide, and a stable pH buffer system is constructed. The key double-effect stabilizing agent and the indicator (such as salicylic acid) can be subjected to complexing chromogenic reaction when the etching product titanium ions are accumulated to reach a threshold value, so that the self-indication function of solution failure is realized. The invention discloses a preparation process for dropwise adding hydrogen peroxide under cooling and temperature control conditions. The titanium etching solution disclosed by the invention has the beneficial effects of high chemical stability, good Ti / Cu etching selectivity and in-situ failure early warning function.

This invention relates to the field of water pollution remediation technology, specifically providing an iron-titanium co-loaded resin material, its preparation method, and its application. The preparation method of the iron-titanium co-loaded resin material includes the following steps: preparing an Fe-loaded resin intermediate by shaking and soaking a sulfonic acid-based cation exchange resin with an iron ion solution; preparing an iron-titanium composite modified resin intermediate by shaking and soaking the Fe-loaded resin intermediate with a titanium ion solution; and stirring the iron-titanium composite modified resin intermediate with a mixed treatment solution containing sodium persulfate and sodium hydroxide, washing until neutral, and drying to obtain a composite resin material co-loaded with iron oxide and titanium oxide. This iron-titanium co-loaded resin material can significantly reduce manganese ion concentration when applied to groundwater purification and can be used in in-situ groundwater remediation projects.

The invention provides a chemiluminescent composition and a dynamic coding device and method. The chemiluminescent composition comprises (i) a luminophor compound; (ii) a first metal ion selected from one or more of Mn < 2 + >, Co < 2 + >, Cr < 3 + >, Fe < 2 + >, Fe < 3 + >, Cu < 2 + >, Ni < 2 + >, Pb < 2 + >, Zn < 2 + >, Ru < 2 + >, Ce < 3 + >, Ag < + >, Pt < 2 + >, and any combination thereof; (iii) second metal ions selected from one or more of the group consisting of zirconium ions, molybdenum ions, titanium ions, vanadium ions, niobium ions, aluminum ions, and any combination thereof; (iv) an organic ligand; (v) a first co-reactant; (vi) a second co-reactant and (vii) a luminescence retarder. The chemiluminescent composition provided by the invention can be used for accurately controlling one or more of luminescence color / wavelength, luminescence starting time, luminescence duration and luminescence intensity, precise design can be carried out on the basis, and a novel chemiluminescent coding device and a novel chemiluminescent coding method which are high in sensitivity, high in information density, precise, anti-interference and anti-cracking are realized.

The present application relates to the technical field of inorganic non-metallic refractory material preparation, in particular to a homogeneous sintering process of high-calcium and low-iron dolomite sand for refractory; comprising the steps of preparing anhydrous homogeneous modified sol, light-burning dolomite grafting treatment, pre-sintering activation and isostatic pressing forming homogeneous sintering; the technical principle is to use organic multi-tooth chelating groups to ensure homogeneous distribution of tetravalent zirconium ion / tetravalent titanium ion precursor, to generate high-melting-point continuous network phase to wrap calcium oxide at high temperature in situ, and to combine with rare earth ion solid solution to produce lattice defects to reduce sintering activation energy; the present application overcomes the defects of physical addition of burn-promoting agents to reduce high-temperature performance and easy loss of surface coating, uses in-situ wrapping of grain boundaries and defect burn-promoting mechanism to solve the problems of difficult densification and easy hydration of the material, realizes high densification, and effectively improves the anti-hydration, anti-thermal shock and anti-slag erosion capacity.

The invention provides a doped sodium electric precursor as well as a preparation method and application thereof. The preparation method comprises the following steps that a nickel-manganese-iron mixed salt solution and doped metal salt are mixed, and a mixed solution is obtained; wherein doped metal ions in the doped metal salt comprise titanium ions, magnesium ions and zinc ions; and carrying out spray pyrolysis on the mixed solution to obtain the doped sodium electric precursor. The preparation method provided by the invention is simple in process, the doped sodium electric precursor with the characteristics of high entropy effect and the like can be directly prepared through one-step spray pyrolysis, the efficiency is high, the energy consumption is low, and the cost advantage is obvious; in addition, the process route also realizes uniform atomic-scale doping of various elements. The sodium ion layered oxide positive electrode material prepared based on the method is uniform in component and stable in structure, and the rate capability and the cycling stability of the sodium ion layered oxide positive electrode material are remarkably improved.

The invention relates to a preparation method of a positive electrode material, the positive electrode material and a secondary battery, the preparation method of the positive electrode material comprises the following steps: mixing a positive electrode raw material, a carbon source and a spherical hollow metal organic framework material to obtain a positive electrode material precursor; sintering and crushing the positive electrode material precursor to obtain a positive electrode material; wherein the spherical hollow metal organic framework material comprises zirconium ions and titanium ions, the positive electrode material comprises a lithium iron phosphate core and a carbon coating layer, the outer surface of the lithium iron phosphate core is coated with the carbon coating layer, and the zirconium ions and the titanium ions are doped in the lithium iron phosphate core. The positive electrode material has a more compact carbon coating layer, so that direct contact between a lithium iron phosphate core and an electrolyte is avoided, meanwhile, the stability of a lattice structure can be effectively improved, iron dissolution caused by interface reaction or lattice structure damage is reduced, and the electrochemical performance of the positive electrode material can also be effectively improved.

The invention relates to the technical field of electroplating, and particularly discloses a cyanide-free gold electroplating solution as well as a preparation method and application thereof. The cyanide-free electrogilding plating solution comprises soluble gold salt, a first complexing agent, a second complexing agent, a buffering agent, a brightening agent, a wetting agent, a titanium ion chelating agent, an antioxidant, conducting salt and the balance deionized water. The first complexing agent is ethylene diamine tetraacetic acid disodium salt; the preparation raw materials of the second complexing agent comprise an aza-macrocyclic complex and sodium hydroxide, and the mass ratio of the aza-macrocyclic complex to the sodium hydroxide is 1: (1-2). The stability of the plating solution can be improved, and a plating layer with fine crystal nucleus and a compact structure can be formed, so that the protection performance and the appearance of the plating layer are improved.

The present application relates to the technical field of medical devices for treating aneurysms, and specifically discloses a vascular spring coil and a coating preparation process thereof. The coating preparation process of the vascular spring coil comprises: S1, taking a tungsten wire and cleaning the tungsten wire. S2, ion plating and etching the tungsten wire. S3, cleaning the surface of the tungsten wire with titanium ions, and depositing a titanium layer on the surface of the tungsten wire, the thickness of the titanium layer being 0.015-0.025 μm. S4, depositing a gold layer on the surface of the titanium layer, the thickness of the gold layer being 0.15-0.25 μm, to obtain a raw wire. S5, shaping the raw wire to obtain the vascular spring coil. In this process, ion plating and etching are performed on the tungsten wire to increase the surface roughness and enhance the adhesion of subsequent coatings. Titanium ion cleaning removes the residues of ion plating etching. The thinner titanium layer enhances the adhesion of the pure gold layer. The outermost gold layer makes the vascular spring coil have good biocompatibility and corrosion resistance.

The application relates to an antibacterial agent and a preparation method thereof, a powder coating, a product with antibacterial function and a preparation method thereof. The antibacterial agent comprises an inorganic carrier and silver ions, copper ions and third metal ions supported on the inorganic carrier; the third metal ions comprise one or more of nickel ions, titanium ions, manganese ions and zinc ions; the content of the silver ions is greater than the content of the copper ions and greater than the content of the third metal ions. In the antibacterial agent, the silver ions play a main antibacterial role, the copper ions are used for reducing the silver ions, the state of the silver ions is protected, the third metal ions increase the number of additional exchangeable cations, the release speed of the silver ions is delayed, and the copper ions are matched to improve the durability of the antibacterial effect of the silver ions.

The invention provides a sodium-ion battery positive electrode material, a precursor and a preparation method thereof, a sodium-ion battery and electric equipment, and relates to the technical field of sodium-ion batteries. The sodium ion battery positive electrode material precursor comprises an inner core, a first coating layer and a second coating layer, the first coating layer coats the inner core; the second coating layer coats the first coating layer; the first coating layer comprises sulfide; the second coating layer comprises phosphide; the chemical formula of the inner core is NiaFebMncTid (OH) 2, a + b + c + d = 1, 0.3 < = a < = 0.5, 0.1 < = b < = 0.35, 0.2 < = c < = 0.4, and 0.001 < = d < = 0.05. Through titanium ion doping, the crystal structure stability of the sodium ion battery positive electrode material precursor is enhanced, and the charge conduction efficiency is improved; the conductivity of the material is improved through the first coating layer, the corrosion resistance is improved through the second coating layer, the interface impedance is effectively reduced, and the conductivity of the material can be further enhanced.

The invention provides a preparation method and application of a mesoporous material Ce / Ti-UiO-66-NH2, and the preparation method comprises the following steps: 1) mixing a certain amount of template agent, ceric ammonium nitrate, terephthalic acid, TMB, acetic acid and sodium perchlorate, dissolving in deionized water, and reacting to obtain Ce-UiO-66; (2) adding a certain amount of tetrabutyl titanate into a N, N-dimethylformamide solution containing Ce-UiO-66, and carrying out hydrothermal reaction, so as to obtain a Ce / Ti-UiO-66 solid; and (3) carrying out ultrasonic treatment on a certain amount of 2-aminoterephthalic acid and the Ce / Ti-UiO-66 solid in a methanol solution to obtain a Ce / Ti-UiO-66-NH2 solid. According to the method, simple and convenient synthesis of mesoporous Ce-UiO-66 can be achieved, the problem that in the prior art, a mesoporous Ce-UiO-66 synthesis method is difficult is solved, the metal titanium ion-doped and amino-loaded Ce / Ti-UiO-66-NH2 mesoporous material is prepared, and meanwhile, a new material is provided for the fields of photocatalysis and the like.

The application provides a preparation method of an oxygen-containing organic compound adsorbent. The method comprises the following steps: introducing a coupling agent, copper ions and titanium ions into 13X molecular sieves to obtain the oxygen-containing organic compound adsorbent, and the preparation method of the 13X molecular sieves comprises the following steps: mixing an aluminum source and a silicon source with water to obtain an aluminum-containing material and a silicon-containing material; mixing the two materials and sequentially performing stirring, pH value adjustment and crystallization treatment to obtain a crystallization product; performing aluminum dissolution and silicon dissolution treatment on the molecular sieve-containing material, mixing the obtained aluminum-rich liquid and silicon-rich liquid to obtain a gel-like mother liquor; mixing the crystallization product and the gel-like mother liquor and performing aging, hydrothermal crystallization, filtration, washing and drying to obtain the 13X molecular sieves; and the molecular sieve-containing material is selected from any one or more of the following: waste ZSM-5 molecular sieve catalyst, waste molecular sieve adsorbent or waste VOCs adsorbent. The oxygen-containing organic compound overcomes the problem of low adsorption efficiency of the oxygen-containing organic compound in the prior art, and has high application value.

The present application relates to the technical field of inorganic non-metallic refractory material preparation, in particular to a homogeneous sintering process of high-calcium and low-iron dolomite sand for refractory; comprising the steps of preparing anhydrous homogeneous modified sol, light-burning dolomite grafting treatment, pre-sintering activation and isostatic pressing forming homogeneous sintering; the technical principle is to use organic multi-tooth chelating groups to ensure homogeneous distribution of tetravalent zirconium ion / tetravalent titanium ion precursor, to generate high-melting-point continuous network phase to wrap calcium oxide at high temperature in situ, and to combine with rare earth ion solid solution to produce lattice defects to reduce sintering activation energy; the present application overcomes the defects of physical addition of burn-promoting agents to reduce high-temperature performance and easy loss of surface coating, uses in-situ wrapping of grain boundaries and defect burn-promoting mechanism to solve the problems of difficult densification and easy hydration of the material, realizes high densification, and effectively improves the anti-hydration, anti-thermal shock and anti-slag erosion capacity.

The invention relates to the technical field of precious metal detection, in particular to a titanium metal detection reagent and a preparation method thereof.The titanium metal detection reagent comprises, by weight, 6%-15% of hydrofluoric acid, 3.0%-6.5% of ferric nitrate, 3.0%-7.5% of a color developing agent and the balance water. The acidity of hydrofluoric acid can extract titanium ions in a mode of corroding the metal surface, and ferric nitrate plays a role in oxidation catalysis. The higher the titanium content of the titanium metal and the alloy thereof is, the deeper the red color of the detection solution is. The titanium metal detection reagent reacts with aluminum to make the detection solution milky white, and when the titanium metal detection reagent detects stainless steel, the detection solution is colorless and has no obvious reaction. The titanium metal detection reagent detects zinc so that the detection solution becomes yellow, and the titanium metal detection reagent detects tin so that the detection solution becomes grey black. The titanium metal detection reagent is convenient to carry, the detection solution of the finished product is dropped on metal for detection, whether the titanium metal and alloy titanium thereof are titanium metal or not is judged by observing the color change, the operation is simple and easy to operate, the cost is lower, and the time is saved and the efficiency is high.

The invention discloses a reverse osmosis concentrated water treatment agent and a preparation method thereof, and belongs to the technical field of sewage treatment.The reverse osmosis concentrated water treatment agent is characterized in that bentonite powder is subjected to alkali washing and acid washing, carboxyl on the surface, boric acid groups of phenylboronic acid and hydroxyl of 2, 5-hydroxyterephthalic acid are subjected to an esterification reaction, then the reaction product and titanium tetrachloride are subjected to a hydrothermal reaction, and titanium-based MOF is generated in situ; after being treated by gamma-methacryloxypropyltrimethoxysilane, the activated bentonite is copolymerized with zinc acrylate and N-isopropylacrylamide to form a hydrogel membrane, boron and zinc are introduced, and the adsorption and ion exchange capacity of the treatment agent can be remarkably improved through the high specific surface area of the hydrogel membrane and activated bentonite and the porosity of a titanium base; the adsorption effect on manganese ions and calcium ions is improved; in the self-synthesis process of the titanium-based MOF, part of boron of phenylboronic acid enters crystal lattices of the titanium-based MOF to replace titanium ions, so that a band gap is narrowed, the visible light absorption range is widened, and the photocatalytic activity is improved.

This invention belongs to the technical field of battery material analysis, and discloses a sample digestion method for determining the titanium content in carbon-coated lithium iron phosphate and a method for determining the titanium content therein. The sample digestion method provided by this invention uses concentrated sulfuric acid, perchloric acid, and ammonium sulfate as the first digestion reagents. The carbon-degradation-oxidation-decomposition of carbon-coated lithium iron phosphate is achieved at a high temperature of 200℃~350℃. Concentrated hydrochloric acid is used as the second digestion reagent to achieve complexation-stabilization of titanium ions, thereby achieving complete digestion of carbon-coated lithium iron phosphate. This yields a clear, transparent digestion solution with stable titanium ions, which can be directly used for quantitative analysis of titanium. This method has the advantages of simple operation, short processing time, and high processing efficiency, and has excellent application prospects for accurate and industrialized batch detection of titanium content in this complex matrix battery material, carbon-coated lithium iron phosphate.

The invention belongs to the technical field of energy-saving films, and particularly relates to an energy-saving film, a preparation method thereof and application of the energy-saving film in hollow energy-saving glass. Tetrabutyl titanate is hydrolyzed through a gel method to form niobium-doped titanium gel, the niobium-doped titanium gel is calcined to form modified nano titanium dioxide, bismuth tungstate is loaded to the surface of the modified nano titanium dioxide to prepare the nano thermal insulation material, niobium is doped to replace titanium ions to initiate lattice distortion, bismuth tungstate is loaded to the surface of the modified nano titanium dioxide to form a heterojunction, and the nano thermal insulation material is prepared. The plasma resonance effect is improved by locally improving free electrons, and the near-infrared light blocking performance of the energy-saving film is further improved; the modified acrylic resin has excellent weather resistance, so that the transparent thermal insulation material is uniformly dispersed; the metal functional film is compounded in the transparent conductive oxide, so that the energy-saving film can maintain high visible light transmittance and generate a strong reflection effect on near-infrared electromagnetic waves, and the prepared energy-saving film is suitable for an environment needing high shading and heat insulation.

The invention relates to a titanium nitride etching solution which comprises the following components in parts by weight: 0.4-2 parts of a self-assembly additive; 0.1-1 part of ammonium salt; 5-15 parts of hydrogen peroxide; and 70-90 parts of inorganic acid. The invention also discloses a preparation method and application of the etching solution. The self-assembly additive is composed of the polyphenol hydroxyl compound and the polysaccharide compound, and has low adhesion, good water solubility and titanium ion chelating ability. The polyphenol hydroxyl compound has oxidation resistance, the polysaccharide compound assists the polyphenol hydroxyl compound in adhering to the metal surface, a compact net structure is formed on the metal tungsten surface, and W Plug protection is achieved. The etching liquid is good in water solubility, easy to wash and not prone to remaining on the metal surface.

A lithium titanium composite oxide including aluminum-coated primary particles and a method for manufacturing the same are disclosed. A lithium titanium composite oxide including aluminum-coated primary particles according to an embodiment is manufactured by coating lithium titanium oxide primary particles with aluminum by mixing an aluminum compound with re-pulverized particles and then by spray-drying the mixture again to prepare secondary particles. A battery including the lithium titanium composite oxide including the aluminum-coated primary particles exhibits effects of suppressing electrolyte decomposition and gas generation that may be respectively caused by titanium ions and residual lithium in conventional lithium titanium composite oxides.