466 results about "Aluminum Ion" patented technology

The invention discloses a preparation and regeneration method of an iron-aluminum-lanthanum-based composite fluorine removal agent, relates to the technical field of fluorine removal agent preparation, and aims to solve the problem that the performance of an existing fluorine removal agent needs to be improved. The preparation method comprises the following steps: weighing raw materials according to a molar ratio of iron ions to aluminum ions to lanthanum ions of 1: 1: 1, fully stirring and dissolving the raw materials in deionized water at room temperature, and making the volume constant to prepare a clear mixed solution; adding excessive triethanolamine into the mixed solution, dropwise adding a nitric acid solution, adjusting the pH value of the mixed solution to 3.0-4.0, continuously stirring at room temperature, and fully reacting to obtain a precursor solution; continuously heating and stirring the precursor liquid at 150 DEG C for dehydration to obtain organic group brown fluffy precursor powder; fully grinding the precursor powder, and calcining to obtain a gray powdery iron-aluminum-lanthanum-based composite fluorine removal agent; the method is simple, the prepared fluorine removal agent is large in adsorption capacity and short in reaction time, most of the adsorption capacity can be recovered through simple acid pickling, operation is easy, the service life is long, and the regeneration cost is low.

A positive electrode sheet, a secondary battery, and an electric device. The positive electrode sheet comprises a positive electrode current collector, a positive electrode active material layer located on at least one side of the positive electrode current collector, and a base coating located between the positive electrode current collector and the positive electrode active material layer; the base coating comprises an additive, and the additive comprises a compound containing at least one group among a carboxylic acid group, a phosphate group, and a fluoro group. The provision of the base coating between the positive electrode current collector and the positive electrode active material layer can effectively reduce corrosion of an electrolyte to the positive electrode current collector. Moreover, the additive comprised in the base coating contains at least one group among the carboxylic acid group, the phosphate group, and the fluoro group and thus the additive can effectively complex and / or capture free aluminum ions, so that the effect of protecting the positive electrode current collector can be further achieved, and free aluminum ions can be prevented from migrating to a negative electrode, thereby avoiding damage to an SEI membrane by the free aluminum ions.

The invention provides a method for recycling scandium, iron and aluminum from acid leachate through fractional precipitation, and belongs to the field of hydrometallurgy. The method comprises the following steps: adding a reducing agent into an acid leaching solution to obtain a first modified leaching solution; adding a stable complexing agent into the first modified leaching solution to obtain a second modified leaching solution; adding a pH regulator into the second modified leaching solution, and regulating the pH value of the second modified leaching solution to 3.5-4.5 to obtain a coarse scandium product and a scandium precipitation solution; an oxidizing agent is dropwise added into the scandium precipitation solution, and an iron product and an iron precipitation solution are obtained; and adding a pH regulator into the iron precipitation liquid to regulate the pH value of the iron precipitation liquid to be greater than or equal to 6.0, and carrying out ultrasonic enhanced aluminum ion precipitation to obtain an aluminum product and an aluminum precipitation liquid. Selective modification of metal ions is achieved by adding a reducing agent and a complexing agent, scandium is precipitated through pH regulation and control, iron is precipitated through oxidation regulation and control, and finally complexation and precipitation of aluminum are blocked, so that the separation efficiency of scandium, iron and aluminum in the acid leaching solution is improved at the same time.

The invention belongs to the technical field of lithium slag resource utilization, and discloses a composite exciting agent for lithium slag as well as a preparation method and application of the composite exciting agent. The composite activator comprises the following components in parts by weight: 10-20 parts of an alkali activator, 10-20 parts of a sulfate activator, 15-30 parts of activated aluminum, 1-8 parts of a nano filler and 3-10 parts of a dispersant. An alkali activator and a sulfate activator are used as main materials, the advantages of the alkali activator and the sulfate activator are integrated, the alkaline environment promotes release of active silica-alumina species, the sulfate activator reacts with active aluminum to generate ettringite and other gel products, meanwhile, the active aluminum supplements aluminum ions, gel generation is promoted, and the gel is formed. The nano filler can fill pores and promote generation of C-S-H gel, and the dispersing agent can effectively disperse the active excitation component and the lithium slag.

The invention provides a vanadium aluminum phosphate electrode material and a preparation method thereof. In target product components, an aluminum source, a vanadium source and a phosphorus source are respectively aluminum nitrate or other aluminum sources, vanadium pentoxide or ammonium vanadate, ammonium dihydrogen phosphate, phosphoric acid or other phosphorus sources, and a nitrogen source of nitrogen-doped carbon is from polyvinylpyrrolidone or other nitrogen sources of a gel component; the carbon source is selected from polyvinyl alcohol and glycerol. By adopting an exogenous plasticizing physical crosslinking sol-gel method, in the whole reaction system, uniform distribution of reaction ions and intermediates is maintained, and finally, gel is networked, so that the problem of capacity fading caused by an unstable structure of an existing aluminum ion battery positive electrode material in a circulating process is solved, and the service life of the aluminum ion battery positive electrode material is prolonged. And the problems of high reaction system selection requirement, long preparation period and complex process of the existing endogenous covalent polycondensation sol-gel method for preparing the electrode material are solved.

The invention relates to the technical field of water treatment filter materials, in particular to an intelligent clean gradient composite water purification filter element and a preparation method thereof. The filter element adopts an integrated design of'natural gradient base material + ZIF-67 function enhancement + fluorescence-ultrasonic intelligent regeneration ': modified vegetable sponge is used as a porous support layer, a silica gel / ZIF-67 composite gradient layer is constructed on the porous support layer to realize adsorption and antibacterial dual functions, and dopamine-aluminum ions are used for composite surface modification to enhance hydrophilicity and interlayer binding force; a matched automatic system senses pollution in real time through the fluorescence monitoring module and triggers the ultrasonic regeneration module to complete self-cleaning, and the flux recovery rate is larger than or equal to 97.5%; the interception rate of the filtering element to anabaena under the operation pressure of 0.1-0.3 MPa is larger than or equal to 99.2%, the filtering flux is increased by 6-8 times compared with that of a commercial element, the filtering element can tolerate complex water quality in the coexistence of drugs and personal care products, natural vegetable sponge serves as a base material, and the filtering element has the advantages of biocompatibility and low cost and is suitable for drinking water purification and eutrophication water body treatment.

The invention provides an amorphous high-entropy sulfide for an aluminum ion battery positive electrode and a preparation method and application thereof, the chemical general formula of the amorphous high-entropy sulfide is MS4, M is selected from at least five metal elements of Li, Mo, Ni, Cu, Mn, W, Ti, Nb, Zr, Zn and La, and at least comprises Mo, Cu, Ti and Nb. The preparation method comprises the following steps: S1, burdening; S2, preparing different types of monometal sulfide precursors by high-energy ball milling; and S3, preparing the amorphous high-entropy sulfide by high-energy ball milling. The high-entropy sulfide prepared by the method is in an amorphous state, and when the high-entropy sulfide is used as the aluminum ion battery positive electrode material, the problems that the positive electrode material in the prior art is insufficient in aluminum ion adsorption, low in storage capacity, complex in preparation condition, difficult to produce on a large scale and the like can be solved. The obtained aluminum ion battery shows good electrochemical performance and has an extremely high commercial application prospect.

The invention discloses a purification method for reducing aluminum ion residues in leucine, which comprises the following steps: 1, dissolving a leucine sample in deionized water until the concentration is 10.0-22.0 g / L, adding hydrochloric acid to adjust the pH value, heating to 75-85 DEG C for dissolving, slowly stirring, and cooling to room temperature; 2, enabling the aqueous solution to pass through amino phosphonic acid chelate resin at a flow rate of 5.0-10.0 BV, and collecting effluent; and step 3, adding activated carbon into the effluent for decoloration for 40 minutes, and carrying out refined filtration and decarburization to obtain a decolorized solution. The invention relates to the technical field of amino acid purification, and according to the purification method, macroporous structure chelating resin with a weakly acidic active group (aminophosphonic acid) is adopted to selectively adsorb aluminum ions, and an acid-soluble water-washing process is adopted, so that trace aluminum ion residues in leucine are effectively reduced. The method is low in equipment requirement and simple to operate, the content of aluminum ions can be reduced to 0.2 ppm or below, the leucine loss is extremely low, the repeated utilization rate of the resin is high, and the production cost is greatly reduced.

The invention provides a comprehensive utilization method of clay type lithium ore, and relates to the field of hydrometallurgy. The comprehensive utilization method of the clay type lithium ore comprises the following steps: mixing the clay type lithium ore with concentrated sulfuric acid, and carrying out low-temperature roasting at the temperature of 100-300 DEG C to obtain a roasted cured material; adding water into the roasted and cured material, leaching, and carrying out solid-liquid separation to obtain a lithium-rich aluminum leaching solution; adsorbing the lithium-rich aluminum leaching solution by using an aluminum ion sieve adsorbent to obtain an aluminum-rich adsorbed solution and a lithium-loaded ion sieve; analyzing the lithium-loaded ion sieve to obtain a lithium-rich desorption solution; the lithium-rich desorption solution is sequentially subjected to purification and lithium precipitation, and battery-grade lithium carbonate is obtained; sequentially carrying out iron removal, purification and impurity removal on the aluminum-rich adsorption post-liquid to obtain iron slag and an aluminum sulfate solution; and sequentially carrying out aluminum precipitation and roasting on the aluminum sulfate solution to obtain the metallurgical-grade aluminum oxide. The method has the advantages of high-efficiency leaching of lithium and aluminum, high-efficiency separation of lithium and aluminum, environment friendliness, simple process and the like.

The invention discloses a three-dimensional porous carbon encapsulated V2O5 carbon fiber electrode constructed by in-situ growth and a preparation method and application thereof, belongs to the technical field of aluminum ion battery positive electrode materials, and aims to solve the problems that the intercalation and deintercalation dynamics of AlCl4 in a polyacrylonitrile (Pan)-based carbon fiber is blocked due to disordered graphite structure, and the performance of the Pan-based carbon fiber is influenced. And the material cannot be used as an effective electrode material to be applied to an aluminum ion battery system. According to the preparation method, an in-situ growth technology is adopted, a three-dimensional porous carbon substrate is grown on the surface of carbon fiber, then an orthorhombic system vanadium pentoxide (V2O5) nano material which has high theoretical specific capacity and can realize large-current charging and discharging is packaged in the three-dimensional porous carbon substrate, and the V2O5-based carbon fiber electrode is prepared. According to the electrode, the electrostatic interaction between Al < 3 + > ions and crystal lattices is effectively relieved, the structural advantages of the carbon fibers and the energy storage performance of V2O5 are fully combined, the energy storage effect of the aluminum ion battery is remarkably improved, and a new effective scheme is provided for development of aluminum ion battery electrode materials.

The invention belongs to the field of ferrite materials, and particularly relates to a high-coercivity strontium ferrite with iron partially replaced by aluminum and a preparation method of the high-coercivity strontium ferrite. Aiming at the problem of low coercive force of a ferrite pre-sintering material in the prior art, iron is partially replaced by aluminum, ferric nitrate, strontium nitrate, aluminum nitrate and glucose are used as reaction raw materials, the ratio of the total molar weight of Fe and Al to the molar weight of Sr is (9.5-12): 1, the ratio of the molar weight of Al to the total molar weight of Fe and Al is (0-0.41): 1, and the molar weight of glucose is 0.5-3.5 times of the total molar weight of Fe, Al and Sr; and calcining at 900-1200 DEG C for 1-3 hours by adopting a solution self-combustion-aluminum ion substitution method to prepare the strontium permanent magnetic ferrite powder material with high coercivity.

The invention relates to a preparation method of an aluminum polycarboxylate precursor and an aluminum oxide fiber, the aluminum polycarboxylate precursor is stable and has good spinnability, and the aluminum oxide fiber keeps complete fiber morphology and stable crystal phase at 1200 DEG C. The preparation method comprises the following steps: by taking aluminum chloride salt as an aluminum source and potassium carboxylate as an organic ligand of aluminum ions, removing chloride ions by utilizing a potassium salt precipitation method to obtain a polycarboxylic acid aluminum precursor; and taking a high-molecular polymer as a spinning aid, obtaining an alumina precursor fiber by virtue of an electrostatic spinning technology or a centrifugal thread throwing technology, and carrying out heat treatment to obtain the alumina fiber. The method has the advantages of simple synthesis process, good sol stability and spinnability, low cost, no environmental pollution in heat treatment and the like. The prepared alumina fiber is stable in crystalline phase and microstructure, complete in fiber form under the high-temperature condition and capable of being applied to the fields of high-temperature heat insulation, catalyst carriers and the like.

The invention relates to a method for preparing 5-hydroxymethylfurfural through mild catalysis of aluminum ions. The method comprises the following steps that S1, carbohydrate and aluminum ion salt are dissolved in a solvent; s2, reacting for 24 to 48 hours in a reaction atmosphere under the condition of 80 to 120 DEG C; s3, filtering to obtain a 5-hydroxymethylfurfural sample; the mass ratio of the carbohydrate to the aluminum ion salt is 1: 1, and the mass-volume ratio of the carbohydrate to the solvent is (0.01-1g): 1mL. According to the scheme disclosed by the invention, the reaction conditions are simple and mild, the yield of the obtained 5-hydroxymethylfurfural sample can reach 99.8%, and the 5-hydroxymethylfurfural sample has the same HPLC signal as a commercially available 5-hydroxymethylfurfural standard sample and the same infrared spectrum signal as the commercially available 5-hydroxymethylfurfural standard sample; no obvious by-product peak is observed in a nuclear magnetic resonance spectrogram of a 5-hydroxymethylfurfural sample, and the product purity is extremely high. Due to high selectivity and high yield of the reaction, separation and purification of the 5-hydroxymethylfurfural are simplified, and subsequent reaction is facilitated.

The invention provides a method for extracting and separating rare earth and aluminum from an acetic acid solution by using dynamic difference, which comprises the following steps: extracting the acetic acid solution containing rare earth and aluminum for 5-30 seconds by using an organic phase containing a phosphoric acid extracting agent to realize selective separation of rare earth and aluminum ions to obtain a rare earth-loaded organic phase and an aluminum-containing raffinate; the phosphoric acid-containing extraction agent comprises a P204 extraction agent and / or a P507 extraction agent; in the acetic acid solution containing rare earth and aluminum, the concentration sum of acetic acid and acetate is 0.3 mol / L-3. 5mol / L; the pH value of the acetic acid solution containing rare earth and aluminum is 4.0-5.0. As the coordination constant of aluminum ions and acetate is larger than that of rare earth ions and acetate, when the method is used for treating the acetic acid solution containing rare earth and aluminum, rare earth can be directly extracted and separated from the solution, and meanwhile, the method has the advantages that the operation is simple and convenient, and the method can be realized by using existing conventional equipment.

The invention belongs to the technical field of zircon refractory aggregates, and discloses an in-situ formed mullite reinforced zircon spherical compact aggregate and a preparation method thereof.The zircon aggregate is directly prepared from zircon powder, clay powder and silica powder as raw materials through a granulation method, and the zircon aggregate is subjected to alumina sol vacuum impregnation and then is subjected to ball milling to obtain the in-situ formed mullite reinforced zircon spherical compact aggregate. And sintering to obtain the in-situ formed mullite reinforced zirconite spherical compact aggregate. In the invention, the alumina sol and the zirconite generate needle-like mullite in situ, and the zirconia phase fills the gap and is interwoven with the gap; the mullite gradient structure is formed by the needle-like mullite and mullite generated through clay reaction, the mullite is used as a medium to accelerate aluminum ions to migrate outwards from the inside of the zirconite spherical aggregate, and therefore the mullite gradient structure is formed, the preparation process is simple, the volume density is high, the anti-stripping performance is good, the high-temperature performance is stable, and the strength is high; the zircon refractory material is a preferable material for preparing zircon refractory materials and zircon ceramics for glass kilns.

The invention provides an aluminum foil and a preparation method thereof, the preparation method comprises the following steps: the aluminum foil is subjected to electrochemical corrosion in a mixed acid solution, the half cycle of alternating current adopted by the electrochemical corrosion comprises a plurality of wave crests, and the mixed acid solution comprises at least one of nitric acid and phosphoric acid; passivating the aluminum foil; washing the aluminum foil with water; and the steps of electrochemical corrosion, passivation treatment and water washing are repeated until the aluminum foil reaches the preset corrosion amount. The nitric acid can improve the overall corrosion amount, reduce the surface corrosion of the aluminum foil and promote the longitudinal development of corrosion. Phosphate radicals and aluminum ions can form a complex, so that the concentration of free Al < 3 + > in a hole etching area is reduced, corrosion reaction balance is pushed to move rightwards, and further corrosion is promoted.

The invention relates to the technical field of high polymer materials, in particular to an anti-aging thread gluing material and a preparation process thereof. Comprising the following steps: preparation of aluminum-doped zinc oxide, tannic acid modified aluminum-doped zinc oxide, ferulic acid modified nylon fiber and modified nylon master batch preparation of the thread gluing. According to the invention, groups of tannic acid and aluminum ions and zinc ions of aluminum-doped zinc oxide are driven by heat energy of a reflux reaction to simultaneously generate chelation-dehydration condensation to form a five-membered ring chelate, so that a compact coating layer is formed on the surface, and the coating layer is simple in component and has very stable chemical bonds; the ultraviolet light stability of aluminum-doped zinc oxide is enhanced, the layer can generate hydrogen bond / pi-pi interaction with nylon amido bonds, the interface bonding strength is improved, the particle size is kept at the level of no filter pressure fluctuation in the spinning process, and the volume resistivity of nylon fibers is reduced.

The invention discloses an environment-friendly early-strength alkali-free accelerator as well as a preparation method and application thereof, and belongs to the technical field of concrete admixtures. When the environment-friendly early-strength alkali-free accelerator is prepared, aluminum sulfate is not directly adopted to participate in the reaction, the accelerator is obtained by reacting concentrated sulfuric acid and fluosilicic acid with an aluminum oxide component in the industrial byproduct aluminum mud, and the solubility of aluminum ions is further improved by utilizing the principle that concentrated sulfuric acid releases a large amount of heat when encountering water and the principle that acid-base reaction releases heat; the resource utilization of the industrial byproduct aluminum mud is realized. According to the invention, the industrial by-product fluorosilicon slag is subjected to mechanical activation and chemical excitation and the synergistic effect of the grinding aid, so that the reaction activity of the fluorosilicon slag is greatly improved, the fluorosilicon slag is used for preparing the accelerator, the effects of accelerating and early strength are exerted, waste is turned into wealth, and the raw material cost of the accelerator is saved.

The invention discloses a sericin low-hysteresis composite conductive hydrogel as well as a preparation method and application thereof, the hydrogel takes a copolymer of methacrylamide phenylboronic acid and acrylamide as a matrix, and the composite conductive hydrogel is formed by introducing polydopamine modified sericin and aluminum ions. In the hydrogel, a boric acid group on a main chain reacts with a phenolic hydroxyl group into which sericin is introduced, so that the hydrogel has excellent self-repairing capability, and a secondary structure of the sericin is changed from disorder to alpha-helix and beta-folding in the reaction, so that the hydrogel has excellent low hysteresis capability; the introduction of aluminum ions provides good conductivity for the hydrogel. A sensor prepared from the hydrogel can respond to the deformation of human body movement and monitor the resistance change during joint movement, so that the real-time monitoring of the movement state is realized. The preparation process is simple and convenient, the materials are green and environment-friendly, and the method has wide application prospects and is suitable for the fields of design of wearable sensors, sports motion correction and the like.

The invention provides a method for recycling iron phosphate from waste lithium iron phosphate positive and negative electrode mixed lithium extraction slag and application of the method. The method comprises the steps that 1, the waste lithium iron phosphate positive and negative electrode mixed lithium extraction slag and hydrochloric acid are placed in a reaction kettle to leach out metal elements in the slag, and filtering is conducted to obtain filtrate and graphite slag; step 2, detecting the contents of copper ions and aluminum ions in the filtrate, calculating the amount of required iron powder, adding the iron powder into the filtrate to remove the copper ions in the filtrate, adjusting the pH value to remove the aluminum ions, and oxidizing ferrous iron in the filtrate into ferric iron by using an oxidizing agent; 3, ammonia water and ammonium dihydrogen phosphate are added into the filtrate, the ammonia water is used for adjusting the PH, the ammonium dihydrogen phosphate is used for adjusting the iron-phosphorus ratio to be 0.96-1.02, an iron phosphate dihydrate precipitate is synthesized through a synthesis reaction, and iron phosphate dihydrate and lithium-containing filtrate are obtained through solid-liquid separation; and 4, washing and drying the iron phosphate dihydrate precipitate to obtain regenerated iron phosphate. The economic benefit of recycling the waste lithium iron phosphate battery is increased, and the generation of solid wastes is reduced.

The invention relates to the field of wastewater treatment, and discloses a hydroxyapatite modified biochar material as well as a preparation method and application thereof in treatment of fluorine-containing wastewater. The preparation method comprises the following steps: preparing a hydroxyapatite-biochar composite material by using an in-situ precipitation method, and modifying by using metal aluminum ions, specifically, uniformly mixing peanut shell powder and anhydrous calcium chloride, dispersing, dropwise adding diammonium hydrogen phosphate for reacting, adjusting pH by using NaOH, stirring at constant temperature for reacting, washing with water and absolute ethyl alcohol to be neutral, and drying to obtain an HAP / C composite material; the HAP / C composite material is placed in a tubular furnace for pyrolysis, and an HAP / BC composite material is obtained; and adding an A1Cl3. 6H2O solution into the HAP / BC composite material, uniformly stirring, standing, carrying out suction filtration and washing until the HAP / BC composite material is neutral, and finally drying the HAP / BC composite material in a constant-temperature drying box to obtain the Al-HAP / BC composite material with low cost, large adsorption capacity and strong stable regeneration performance, and the obtained Al-HAP / BC composite material is applied to fluorine ion-containing wastewater, has a remarkable fluorine removal effect and has a good application prospect.

The invention discloses a method for treating indium raffinate, which comprises the following steps: mixing the indium raffinate with ammonium sulfate, and reacting to obtain a mixed solution; wherein the indium raffinate comprises aluminum ions; cooling the mixed solution to obtain an aluminum ammonium sulfate crystal; adding the aluminum ammonium sulfate crystal into water, and carrying out heating treatment to obtain an aluminum ammonium sulfate solution; adjusting the pH value of the aluminum ammonium sulfate solution to 4.5-5.5 to obtain an aluminum hydroxide precipitate; and calcining the aluminum hydroxide precipitate to obtain aluminum oxide. Therefore, according to the method, the aluminum element in the zinc hydrometallurgy system can be removed, the aluminum element is converted into an aluminum oxide product to be recycled, and good environmental protection benefits and economic benefits are achieved.

The invention provides a method for preparing spherical aluminum tantalum alloy powder based on segmented voltage molten salt electrolysis. The method comprises the following steps: mixing Ta2O5 powder with a pore-forming agent and a conductive agent, pressing into a sheet, sintering at high temperature to prepare a Ta2O5 cathode sheet, carrying out segmented electrolysis in cryolite-based molten salt by taking graphite as an anode, and carrying out electrolysis at low voltage in the first stage, so that Ta2O5 is subjected to solid-state electrodeoxidation to be converted into tantalum particles; and then, the voltage is increased, aluminum ions in the molten salt are electrically deposited on the surfaces of the tantalum particles to form metal aluminum, aluminum-tantalum alloying reaction is induced, and the alloy product spontaneously forms spherical particles through the reaction heat release effect. The spherical aluminum tantalum alloy powder has the advantages of being short in technological process and low in cost, and the spherical aluminum tantalum alloy powder is uniform in particle size, high in sphericity degree, good in fluidity and suitable for the technical fields of laser beam / electron beam 3D printing, cladding forming, injection forming, thermal spraying and the like.

A supported carbon molecular sieve membrane having aluminum atomically distributed in it, wherein: the aluminum is present in an amount of equal to or lower than 15 wt. % of the carbon molecular sieve membrane; the membrane comprises a pore size distribution in which at least 70% of the pores have a pore size from 0.25 to 0.7 nm; and which is obtainable by dip-coating a support with a solution comprising a phenolic-resin and aluminum ions, followed by carbonization. The carbon content of the carbon molecular sieve membrane is from 75 wt. % to 95 wt. %, the oxygen content is from 2.5 wt. % to 8 wt. %, and the hydrogen content is from 1.5 wt. % to 6% wt. %. These CMSMs are useful for gas separation, H2 recovery from natural gas grids, H2 production from biomass, solvent dehydration, obtaining oxygen-enriched air, or dehydrogenation of methylcyclohexane, and as a catalytic membrane reactor or part of a catalytic membrane reactor.

The embodiment of the invention relates to the technical field of radioactive substance transfer, in particular to a radioactive substance dissolving system and a complexing device thereof. The device is used for complexing fluorine ions in a dissolving solution in which radioactive substances are dissolved by using an aluminum ion complexing agent, and comprises an annular accommodating part and a neutron absorbing part, wherein the annular accommodating part is arranged to form an annular accommodating cavity for accommodating a dissolving solution and an aluminum ion complexing agent; the neutron absorption part is arranged on the radial inner side of the annular containing part and used for absorbing neutrons. According to the device provided by the embodiment of the invention, the accommodating cavity for accommodating the dissolving solution and the aluminum ion complexing agent is arranged as the annular accommodating cavity, so that the capacity is improved on the premise of avoiding critical problems in the complexing process; the device provided by the embodiment of the invention is provided with the neutron absorber to absorb neutrons, so that the neutrons emitted by the radioactive substance in the annular accommodating cavity can be prevented from entering the annular accommodating cavity after being emitted out of the annular accommodating cavity and being absorbed by the fissile material to cause a critical problem.

The invention belongs to the technical field of biodegradable materials, and discloses a preparation method and application of aluminum ion cluster dynamic cross-linked toughened PBAT / TPS photo-thermal repair function thermoplastic plastic. The preparation method comprises the following steps: preparing the aluminum ion cluster, preparing the pre-plasticized starch, carrying out melt blending on the obtained pre-plasticized starch and the poly (butylene adipate-co-terephthalate), cooling and drying. Metal ions are complexed with lignin and thermoplastic starch TPS to form a metal ion dynamic network structure, so that the mechanical property of the material is remarkably improved, and the material is endowed with excellent photo-thermal repair performance. Meanwhile, the lignin and the starch are biomass materials, have degradability, are low in cost and easy to obtain, can effectively reduce the cost of the composite plastic, and are suitable for industrial large-scale production.

The invention belongs to the technical field of building materials, and particularly relates to early strength type quick-setting concrete based on a composite cement system and a preparation method thereof, the early strength type quick-setting concrete comprises 400 parts of water, 400-460 parts of cement, 700-780 parts of sand, 980-1150 parts of gravel, 25-30 parts of cellulose, 18-26 parts of polyvinyl alcohol and 30-35 parts of an accelerator; aluminum ions and sulfate ions are subjected to a polymerization reaction to form a polymer with a specific structure, and an organic high-molecular polymer is added, so that the organic high-molecular polymer interacts with an aluminum sulfate polymerization product, and the performance of the accelerator is further modified.

The invention discloses a bismuth oxide-based fuel cell electrolyte material and a preparation method thereof, and relates to the technical field of cell electrolyte materials. The material is composed of a trication-doped delta-Bi2O3 core and a zirconium oxide coating layer, the trication-doped delta-Bi2O3 core is co-doped with erbium, tungsten and aluminum ions, and the material comprises the following components in parts by mass: 75-80 parts of bismuth oxide (Bi2O3); 14 to 19 parts of erbium oxide (Er2O3); 1 to 3 parts of tungsten oxide (WO3); 1 to 3 parts of aluminum oxide (Al2O3); the zirconium oxide coating layer is formed by a coprecipitation method, and the thickness of the zirconium oxide coating layer is 5-20nm, so that the technical problems that the working temperature range of delta-Bi2O3 is difficult to broaden, and the low-temperature phase change and reduction under low oxygen partial pressure are difficult to inhibit are solved.

The water-based aluminum pigment comprises aluminum powder, and an aluminum oxide layer, a silicon dioxide layer I, a silane coupling agent layer, a silicon dioxide layer II and an aluminum ion capture layer which sequentially coat the surface of the aluminum powder from inside to outside, the aluminum ion capture layer is an organic resin layer containing phosphate groups. The invention further discloses a preparation method of the water-based aluminum pigment and application of the water-based aluminum pigment in paint. The invention also discloses a water-based paint which comprises the following raw materials: water-based film-forming resin and the water-based aluminum pigment. Through mutual cooperation of the aluminum oxide layer, the first silicon dioxide layer, the silane coupling agent layer and the second silicon dioxide layer, the bonding strength and compactness of all the layers are improved, and aluminum pigment is prevented from making contact with a corrosion medium; a layer-by-layer cooperative capturing effect is formed by the silicon dioxide layer II and the aluminum ion capturing layer, so that the aluminum ion capturing effect is greatly improved, and the content of free aluminum ions in the coating is reduced; and has good water dispersibility and good metal appearance.

The invention provides a preparation method of an OrgVO material and application of the OrgVO material as a positive electrode material of a secondary battery. The OrgVO material is prepared by the following steps: adding V2O5 into deionized water, stirring, adding a hydrogen peroxide solution, and continuously stirring until the mixture is uniform; adding Org into absolute ethyl alcohol or water, and uniformly stirring; uniformly mixing the two solutions, and carrying out solvothermal reaction in a hydrothermal kettle; and after the reaction is finished, cooling and centrifuging to obtain a precipitate, washing and drying to obtain solid powder, and carrying out vacuum drying to obtain the OrgVO material. The OrgVO material is used as an aqueous zinc ion secondary battery positive electrode material for the first time, and compared with an existing positive electrode material, the OrgVO material shows excellent reversible capacity, rate capability and cycling stability. The material can be used as an electrode material in other secondary batteries, such as lithium, sodium, magnesium, calcium and aluminum ion batteries. In addition, the preparation process of the OrgVO material is simple and easy to control, the controllability and efficiency of the preparation process are greatly improved, the cost is low, and industrialization is easy to achieve.