246 results about "Ionic adsorption" patented technology

The invention discloses an ion adsorption type rare earth ore prospecting method based on a multi-element composite mineralization mode, and belongs to the technical field of rare earth ore geological exploration. The method comprises the following steps: firstly, collecting the existing exploration and research data of the known granite weathered crust type rare earth deposit; analyzing the ore-forming basic elements of the known granite weathering crust ion adsorption type rare earth ore deposit; then field geological survey and sample collection are carried out on the known granite weathered crust ion adsorption type rare earth ore deposit; determining each metallogenic mode element by utilizing analysis test data and field survey data; analyzing the formation cause of the ore deposit, establishing a prospecting mark, and constructing a multi-component composite mineralization mode of the granite weathering crust type rare earth ore deposit. And finally, prospecting target area prediction is carried out. For the known high-altitude granite weathering crust ion adsorption type rare earth deposit, multiple exploration technologies are organically fused, the special environment of the high-altitude area is optimized, a multi-element composite mineralization mode is constructed, and brand-new theoretical guidance and technical means are provided for prospecting of ion adsorption type rare earth ore in the high-altitude area.

The invention provides a material for removing sodium ions in saline-alkali soil and a preparation method, and relates to the field of sodium ion adsorbents, the preparation method comprises the following steps: (1) lignin modification: under a water bath condition, dissolving sulfate lignin in a mixed solution of analytically pure acetic acid and 30% hydrogen peroxide, then adding ferric chloride, reacting for 1.5-2.5 hours, diluting with distilled water by 7-8 times, centrifuging and washing to obtain modified lignin; drying to obtain oxidized lignin; (2) hydrogel synthesis: mixing and stirring the oxidized lignin and analytically pure acrylic acid, adding a cross-linking agent and an initiator, and reacting in a drying oven at 65-75 DEG C for 1.5-2.5 hours to form a sodium ion adsorption material with a porous interpenetrating network structure; by modifying the lignin, particularly introducing more hydroxyl and carboxyl groups, the performance of the lignin in the application of adsorbing ions, preparing hydrogel and the like can be improved.

The invention discloses an anti-corrosion fireproof coating applied to a new energy battery box and a preparation method, and relates to the technical field of industrial coatings, the anti-corrosion fireproof coating comprises the following specific components: a base resin system, a curing agent, a functional filler system, a flame retardant system, a solvent system and an auxiliary agent system; the anticorrosive and fireproof coating further comprises additives, wherein the additives specifically comprise a functionalized MXene loaded lithium ion adsorbent, a metal organic framework encapsulated quaternary phosphonium salt, polyaryletherketone coated antimony trioxide nano-particles and boron-nitrogen co-doped graphene aerogel powder; the material is prepared based on the materials. According to the invention, multiple additives are synergistically introduced into a traditional basic coating system, and on the basis of a basic flame-retardant and anti-corrosion structure, lithium ion directional adsorption, gas-phase free radical active intervention, high-temperature carbonization barrier construction and three-dimensional thermal barrier network configuration are further realized; therefore, the multi-dimensional safety performance of the coating in battery thermal runaway, salt spray corrosion and high-temperature impact environments is remarkably improved.

The invention discloses a production process of an efficient polyaluminum chloride-based composite flocculant, which includes adding tourmaline into ethanol for low-temperature ball milling treatment to obtain tourmaline fine powder; performing low-temperature grinding treatment on vermiculite, then successively adding tourmaline, aluminum isopropoxide and trichloromethylsilane and stirring, and obtaining a prefabricated vermiculite carrier after dispersion and granulation; standing the prefabricated vermiculite carrier for 1-2 h, then standing at a constant temperature for 3-5 h, then soaking it in an alkali solution for 20-30 min, performing ultrasonic treatment for 5-10 min, filtering and sintering to obtain porous mixed vermiculite; mixing dimethyldiallylammonium chloride and polyaluminum chloride evenly, then putting them into the porous mixed vermiculite and stirring evenly, then performing microwave oscillation treatment for 1-2 h, taking out the porous mixed vermiculite particles, which are the prefabricated flocculant; standing the prefabricated flocculant for 1-2 h, and obtaining an efficient flocculant after freeze-drying. The invention utilizes vermiculite to improve the sedimentation characteristics of the flocculant, combines with the negative ion adsorption of tourmaline, aggregates the flocs of dimethyldiallylammonium chloride and polyaluminum chloride, reduces the dispersion problem of the flocs, and achieves the balance of adsorption, sedimentation and flocculation.

The invention discloses a preparation method of nitrogen-doped hierarchical pore hollow carbon spheres, and relates to the technical field of electrochemical desalination, the preparation method comprises the following steps: carrying out polycondensation on melamine and formaldehyde in the presence of PVP to form a spherical template; resorcinol and HMTA form a phenolic resin coating layer on the surface of the template; calcining at high temperature to realize decomposition and carbonization of the template, and introducing double bonds through a silane coupling agent; introducing a phosphoryl chloride group through free radical polymerization; finally, grafting a sulfonic acid group through nucleophilic substitution to obtain a final product. The nitrogen-doped hollow carbon spheres with a hierarchical pore structure are prepared through a hollowing strategy and surface modification, and N, P and S ternary heteroatom synergy is realized through introduction of a phosphoryl chloride group and a sulfonic acid group, so that the material has high specific surface area, optimized pore structure and strong ion exchange capacity; the composite material shows excellent ion adsorption performance and cycling stability, and has a good application prospect in the field of capacitive deionization.

The invention discloses a relative permeability improver for efficient water control and oil increase and a preparation method thereof, belonging to the field of oil and gas field development. The relative permeability improver is a multi-component copolymerized polyacrylamide synthesized from acrylamide, sodium acrylate, 2-acrylamido-2-methylpropanesulfonic acid, a sulfonate ion-containing hydrophobic monomer, and a cationic adsorption monomer. The sulfonate ion-containing hydrophobic monomer and the cationic adsorption monomer are simultaneously introduced to cooperate with each other. Through the mutual synergy of the monomers, the water control and oil increase capability of the relative permeability improver in porous media is significantly improved, the flow resistance of the water phase in the porous medium is effectively increased, and the flow resistance of the oil phase can be further reduced due to the lubrication effect, thereby unexpectedly achieving an oil permeability effect, achieving an excellent water control and oil increase effect, and being able to have significant permeability selectivity under heterogeneous oil reservoir conditions. The invention provides key material support for the development of high-water-content oil and gas resources, ensuring the goal of efficient development of high-water-content oil and gas resources.

The invention discloses equipment and a method for preparing an electronic-grade salicylic acid solution. The equipment comprises an acidification tank, an alkali tank, a micron filter, an anion filter, a cation adsorption column and a nano filter. The acidification tank is used for loading a salicylic acid solution and an acidic substance, and the alkali tank is used for loading an eluent. The method comprises the following steps: firstly, removing large impurities from a salicylic acid solution and acidic substances through a micron filter, then conveying the salicylic acid solution and acidic substances to an anion filter, adsorbing salicylic acid through anion adsorption resin to obtain phenol, removing the phenol, then introducing an eluent, washing off the salicylic acid solution, conveying the salicylic acid solution to a cation adsorption column to remove metal ions, and finally conveying the salicylic acid solution and the acidic substances to a nano filter to obtain the purified salicylic acid. And reducing the granularity of the salicylic acid solution to obtain the electronic-grade salicylic acid solution. The electronic-grade salicylic acid solution has the advantage of strong selective complexing ability to metals, and has a good wet etching effect in the integrated circuit manufacturing process.

The invention provides a processing method and application of seaweed mud-based biochar. The method comprises the following steps: (1) cleaning and deodorizing treatment: adding water into seaweed mud, stirring, precipitating and separating impurities, adding a sodium hydroxide solution, carrying out alkali washing and swelling, removing impurities and fishy smell, and forming a porous structure; (2) adding an iron salt solution for pretreatment to enable the seaweed mud to adsorb iron ions, filtering after adsorption is completed, and performing ball milling on a filtered product to obtain ball-milled seaweed mud particles; (3) pre-oxidizing in an air atmosphere, raising the temperature to 160-180 DEG C, and keeping the temperature for 2-5 hours; and (4) performing pyrolysis under the protection of nitrogen, heating to 900-1300 DEG C, and keeping the temperature for 8-16 hours to obtain the seaweed mud-based biochar. Through the steps of cleaning, alkali washing, ferric salt adsorption, pre-oxidation, pyrolysis and the like, impurities are effectively removed, the structure of the seaweed mud is improved, the mechanical property and conductivity of the seaweed mud are improved, and the seaweed mud can serve as an adsorption material or a fiber additive.

The invention relates to a counter-ion adsorption high-voltage electrostatic spraying device and application thereof to preparation of a food sugar coating, and belongs to the technical field of equipment machinery and food processing. The device comprises a material conveying system, a high-voltage electrostatic spraying system, a sugar liquid supply system, a gas supply system, a sugar liquid recovery system, a microwave vacuum drying system and a control cabinet, the sugar liquid supply system and the gas supply system are both connected with the high-voltage electrostatic spraying system, the material conveying system is arranged below the high-voltage electrostatic spraying system, the material conveying system is connected with the microwave vacuum drying system, and the sugar liquid recovery system is further arranged below the material conveying system; the above systems are all controlled by a control cabinet. Through pulse switching of a high-voltage electrostatic field and a sugar liquid material, counter-ion charge accumulation of sprayed sugar liquid is realized, namely, positive charge sugar liquid (chitosan and the like) and negative charge sugar liquid (Arabic gum, carrageenan and the like) are alternately sprayed under the high-voltage electrostatic field, so that electrostatic adsorption and directional deposition of the sugar liquid on the surface of food are realized.

The invention relates to the field of adsorption materials, and discloses a lithium ion adsorbent and a preparation method and application thereof. The lithium ion adsorbent comprises a polyvinyl chloride molecular chain and a polymer molecular chain A, wherein the polymeric molecular chain A comprises a structural unit I from crown ether containing vinyl and a structural unit II from a vinyl silane modified lithium ion sieve. The vinyl silane modified lithium ion sieve in the lithium ion adsorbent can be connected with a polymer molecular chain through a chemical bond, so that the lithium ion sieve can be uniformly dispersed on a polymer skeleton, and the lithium ion adsorbent has excellent structural stability, high adsorption capacity and high magnesium-lithium selectivity; and the solution loss rate of the lithium ion sieve is obviously reduced.

The invention relates to the technical field of biomedical materials, and discloses an antibacterial hemostatic material and a preparation method thereof, the antibacterial hemostatic material comprises the following components by weight: 2-3 parts of amino acid terminated polyurethane, 1-3 parts of thiolated chitosan, 3-5 parts of sodium alginate, and 2-4 parts of a polyvinyl alcohol solution. Through the synergistic effect of amino acid terminated polyurethane-sulfhydrylated chitosan-sodium alginate, a dual hemostatic mechanism of physical adsorption-chemical coagulation promotion is constructed: sodium alginate as a natural polysaccharide has strong hydrophilicity and cation adsorption capacity, can quickly absorb moisture in wound blood, concentrate platelets and coagulation factors, and has a good hemostatic effect; thrombin activation is accelerated, and the blood coagulation time is shortened; the antibacterial hemostatic material disclosed by the invention has relatively good antibacterial and hemostatic effects.

The invention discloses a relative permeability improver capable of efficiently controlling water and increasing oil and a preparation method thereof, and belongs to the field of oil-gas field development. The relative permeability improver is multi-component copolymerized polyacrylamide which is synthesized by acrylamide, sodium acrylate, 2-acrylamido-2-methylpropanesulfonic acid, a sulfonate ion-containing hydrophobic monomer and a cationic adsorption monomer; meanwhile, a sulfonate ion-containing hydrophobic monomer is introduced to be matched with a cationic adsorption monomer, through mutual cooperation of the monomers, the water controlling and oil increasing capacity of the relative permeability improving agent in a porous medium is remarkably improved, the flow resistance of a water phase in the porous medium is effectively improved, and meanwhile the oil phase flow resistance can be further reduced due to the lubricating effect; the unexpected oil permeation effect is achieved, the excellent water control and oil increase effects are achieved, and the obvious permeability selection performance can be achieved under the heterogeneous oil reservoir condition; key material support is provided for development of high-water-content oil and gas resources, and the efficient development target of the high-water-content oil and gas resources is guaranteed.

The invention discloses a sodium ion adsorbent which comprises the following components: 30 to 55 weight percent of SiO2, 0 to 30 weight percent of Al2O3, 0 to 30 weight percent of TiO2, 30 to 60 weight percent of K2O and 0 to 5 weight percent of Re2O3 or / and ZrO2, the Re2O3 is one or more of Gd2O3, Yb2O3, La2O3 and Y2O3, and the Al2O3 and TiO2 are not 0 at the same time.

A preparation method of a high-activity nitrogen-doped carbon-loaded CoRu nano-alloy is used for enhancing pH universal hydrogen evolution, and is characterized by comprising the following steps: dissolving dopamine hydrochloride in an aqueous solution containing H2O2 and CuSO4. 5H2O, and magnetically stirring to form a uniform mixture; and pre-wetting carbon cloth with ethanol, immersing the pre-wetted carbon cloth in the dopamine solution for 10 minutes, taking out the pre-wetted carbon cloth, washing the pre-wetted carbon cloth with deionized water for three times, and carrying out vacuum drying to obtain the polydopamine modified carbon cloth marked as PDA / CC. And immersing the obtained PDA / CC into 20 mL of aqueous solution containing Co (NO3) 2.6 H2O and RuCl3 for 6 hours to realize metal ion adsorption. And washing and drying a sample, and calcining the sample in a tubular furnace at 700 DEG C in an N atmosphere for 2 hours to obtain the self-supporting nitrogen-doped porous carbon-loaded CoRu alloy material which is recorded as CoxRu (at) CN / CC. Through a synthesis strategy based on active ion capture and in-situ carbon thermal reduction, and through construction of a nitrogen-doped carbon cobalt ruthenium alloy nanostructure and a strong metal-carrier synergistic effect, efficient hydrogen overflow and establishment of stable active sites are realized; therefore, the performance bottleneck that high activity and high stability of a traditional electrocatalyst in a wide pH range are difficult to cooperate is broken through.

The invention discloses a method for preparing a sandwich type composite membrane capable of efficiently adsorbing heavy metal ions, and belongs to the field of water pollution treatment. The preparation method comprises the following steps: firstly, carrying out hydrolysis modification on polylactic acid particles, then dissolving the polylactic acid particles in dichloromethane / N, N-dimethylformamide to prepare an outer-layer spinning solution, and meanwhile, mixing polyvinyl alcohol, sodium alginate and polyethyleneimine to prepare an inner-layer spinning solution; performing electrostatic spinning on the outer-layer spinning solution to obtain an outer-layer film named as an outer-layer PLA film, performing electrostatic spinning on the inner-layer spinning solution to obtain an inner-layer film named as an inner-layer PVA / SA / PEI film, and re-spinning the outer-layer PLA film on the other side of the inner-layer PVA / SA / PEI film by using the outer-layer spinning solution, namely wrapping the inner-layer PVA / SA / PEI film with the two outer-layer PLA films to form a sandwich structure; and finally, obtaining the composite membrane by adopting a calcium ion cross-linking process. The composite membrane can efficiently adsorb metal ions, is high in adsorption performance retention rate and good in strong acid stability, and is suitable for selective iron removal of electroplating wastewater.

The invention provides a preparation method of biomass-derived porous carbon with ionic adsorption potential, which comprises the following steps: adding disodium ethylene diamine tetraacetate and ferrous chloride into water, and uniformly mixing to obtain EDTA-Fe; the preparation method comprises the following steps: sequentially adding an acetic acid-sodium acetate buffer solution and a biomass material into EDTA-Fe, uniformly mixing, adding aluminum chloride, carrying out a hydrothermal reaction to obtain a primary product, cleaning the primary product, and drying to obtain biomass hydrothermal carbon; the preparation method comprises the following steps: soaking biomass hydrothermal carbon in a saturated solution of potassium carbonate, then carrying out solid-liquid separation, firstly drying a solid obtained by separation, then calcining in a nitrogen atmosphere, and cleaning to obtain the biomass derived porous carbon. The biomass hydrothermal carbon prepared by the method has regular and controllable morphology, abundant surface functional groups and a stable carbon skeleton structure, and shows excellent electrochemical performance.

The invention belongs to the field of rare earth extraction processes, and particularly relates to a closed-loop dressing and smelting process for coal-series associated rare earth mineral resources based on a DESs solvent. Comprising the following steps: taking a sample, carrying out ball milling, adding a leaching agent into the sample after ball milling, leaching the ion adsorption type rare earth elements in the sample, and stirring to obtain a turbid solution; adding a precipitant into the leachate, and then carrying out solid-liquid separation to obtain supernate and precipitates; taking supernate and analyzing the extraction efficiency of the rare earth elements through inductively coupled plasma mass spectrometry (ICP-MS); and adding deionized water into the obtained supernate to recover the leaching agent for next use. The invention aims to obtain a series of deep eutectic solvent (DESs) systems capable of efficiently leaching coal series associated rare earth mineral resources, so that the efficient separation and leaching of ion adsorption type rare earth elements in coal ores are realized; and by utilizing the reversibility of DESs, the recycling of the DESs solvent and the closed-loop dressing and smelting process of coal-series associated rare earth mineral resources are realized.

The invention relates to the technical field of agricultural fertilizers, in particular to a slow / controlled-release fertilizer for saline-alkali soil and a preparation method of the slow / controlled-release fertilizer. The slow / controlled-release fertilizer sequentially comprises a core layer, an inner coating, a shell layer and an outer coating from inside to outside, the core layer comprises a functional aid, diammonium hydrogen phosphate, urea, isobutylidene diurea, potassium nitrate and biochar; a shell layer contains bagasse, a compound strain and fulvic acid; the coating material is an adhesive containing montmorillonite powder; the functional additive is loaded with an organic acid and polymethacrylamide network through modified diatomite, so that the synergistic effect of sodium ion adsorption, acid-base regulation and nutrient slow release is realized; through the multi-layer structure design and the component synergistic effect, it is guaranteed that the slow and controlled release fertilizer can improve the saline-alkali soil structure in a long-acting mode, accurately regulate nutrient release and improve the stress resistance of crops, and the slow and controlled release fertilizer is suitable for efficient utilization of saline-alkali soil.

The present invention provides a sulfonic acid-modified colloidal silica which has excellent long-term stability of metal adsorption amount and is capable of suppressing the amount of residual abrasive grains on a polished metal surface after polishing and cleaning.　This sulfonic acid-modified colloidal silica contains silica particles, and is characterized in that: (1) the surfaces of the silica particles are modified with a sulfonic acid group; (2) the Cu ion adsorption amount of the silica particles is 5.00-110.00 µmol / g; (3) the ratio (Cu ion adsorption amount (µmol / g) / S content (µmol / g)) of the Cu ion adsorption amount to the S content of the silica particles is 0.50 or more; and (4) the rate of change over time of the Cu ion adsorption amount of the silica particles is 1.30 or less as measured by the measurement method described below. [Measurement method of the rate of change over time of the Cu ion adsorption amount of the silica particles] The sulfonic acid-modified colloidal silica is left to stand at 25°C for 3 months. The Cu ion adsorption amount (µmol / g) of the silica particles before standing and the Cu ion adsorption amount (µmol / g) of the silica particles after standing are measured and the rate of change over time of the Cu ion adsorption amount of the silica particles is calculated by the following formula. (Rate of change over time of Cu ion adsorption amount of silica particles) = (Cu ion adsorption amount (µmol / g) of silica particles after standing) / (Cu ion adsorption amount (µmol / g) of silica particles before standing)

The invention discloses high-covering inorganic-organic coated titanium dioxide as well as a preparation method and application thereof, and belongs to the field of titanium dioxide. Rutile type titanium dioxide is added into a dispersing agent and is matched with 0.6-0.8 mm zirconium beads (the filling rate is 65%-80%) for sanding, silicate ions in sodium silicate are adsorbed on the surface of rutile type titanium dioxide, titanium dioxide is difficult to agglomerate, the dispersion uniformity of rutile type titanium dioxide particles in slurry is improved, the particle size is controlled to be uniform, and the light scattering efficiency is optimized; the preparation method comprises the following steps: adding an acidic aluminum salt and an alkaline aluminum salt at a specific temperature in a parallel flow manner, carrying out inorganic coating, adding an organic matter, carrying out organic coating, and finally obtaining the titanium dioxide through gas powder, and the titanium dioxide has the advantages of high titanium dioxide whiteness, low oil absorption, excellent glossiness and excellent covering power.

The invention discloses a hydrogen conductivity electric regeneration ion exchange system, and relates to the field of hydrogen conductivity. The hydrogen conductivity electric regeneration ion exchange system comprises an EDI module main body, a sample injection valve, a filter, a measuring cell and a flow meter. According to the hydrogen conductivity electro-regeneration ion exchange system, a detected water sample enters the EDI module main body, cations are exchanged into hydrogen ions under the exchange action of cation exchange resin, the anode is subjected to an oxygen evolution reaction to generate the hydrogen ions, and the generated hydrogen ions move towards the cathode under the action of an electric field; in the operation process, the system continuously carries out cation adsorption-regeneration, the advanced electrodeionization technology is adopted, the cations in water vapor are efficiently removed, automatic regeneration of the EDI resin is achieved, dynamic balance is maintained, and manual regeneration of the resin is not needed.

The invention relates to the technical field of lithium ion batteries, in particular to a positive electrode binder with a chelating function and a preparation method and application thereof. A positive electrode binder with a chelating function comprises a copolymer main chain formed through free radical polymerization, and the copolymer main chain is grafted with a functional group with transition metal chelating ability. According to the present invention, the chelating group is introduced into the binder through the molecular design, such that the free metal ions are effectively captured, the transition metal impurities in the electrolyte are reduced, the SEI film is prevented from being invaded or the invasion is reduced, and the cycle life of the battery is prolonged. Through functional group design and synthesis process innovation, multi-functionalization of the binder is realized, the binder has high bonding strength (the peel strength is greater than or equal to 10 N / m) and ion adsorption capacity (the concentration of transition metal ions in an electrolyte is reduced by greater than or equal to 50% after 100 cycles of a lithium ion battery), the cycle life of the battery is remarkably prolonged (the capacity retention rate is greater than or equal to 90% after 500 cycles of the lithium ion battery), and the safety is remarkably improved.

The present disclosure relates to the technical field of well drilling, and discloses a strongly adsorbed hyper-branched filtrate reducer for water-based drilling fluid with resistance to 240° C. and saturated salinity, a preparation method therefor and use thereof. The filtrate reducer includes a first structural unit provided by an anionic hydration-enhancing monomer, a second structural unit provided by a cationic adsorption monomer, a third structural unit provided by a main chain monomer, a fourth structural unit provided by a cyclic monomer, a fifth structural unit provided by a polyether monomer, and a sixth structural unit provided by a hyper-branched structural monomer. The filtrate reducer of the present disclosure is capable of maintaining desirable rheology and filtrate reduction performance of the drilling fluid, and the long-term stability under the conditions of 240° C. and saturated salinity.

The invention discloses an anti-radiation medical protective glove and a production process thereof, and belongs to the technical field of medical protective gloves, a polydopamine hollow microsphere is prepared by using ZIF-8 as a self-sacrifice template, bismuth and gadolinium elements are loaded through hydrothermal synthesis and ion adsorption, a composite shielding microsphere is prepared, and the composite shielding microsphere is used for preparing the anti-radiation medical protective glove. Then, the composite shielding microspheres and a nano starch enhanced cross-linked network are synergistically introduced into a natural latex matrix, after dipping forming, a hydrophilic / hydrophobic wetting gradient is constructed on a glove lining through mask auxiliary plasma etching, and the anti-radiation medical protective glove is prepared. Through the cooperation of the shielding function of the composite microspheres, the mechanical enhancement of a nano starch cross-linked network and the surface one-way moisture conduction function, the glove has excellent radiation protection performance and also has the characteristics of being light, flexible and comfortable to wear, the problems that a traditional lead rubber glove is heavy, rigid and poor in air permeability are effectively solved, and the service life of the glove is prolonged. The system is especially suitable for medical scenes requiring high flexibility and comfort, such as interventional radiosurgery.

The invention relates to the technical field of building materials, in particular to a composite saltpetering-resistant agent, saltpetering-resistant and yellowing-resistant colored facing mortar and a preparation method thereof.The composite saltpetering-resistant agent comprises a cation adsorption phase, a light stabilization phase and a hydrophobic phase; the cation adsorption phase is of a porous skeleton structure and comprises zeolite activated by acid and modified by organic functional groups; the light stable phase is a core-shell structure nano-composite and comprises a metal oxide core and a silicon dioxide shell; silanol groups of the hydrophobic phase are covalently bonded with hydroxyl groups on the surfaces of the cationic adsorption phase and the light stable phase. According to the technical scheme provided by the invention, the core problems of saltpetering, yellowing and insufficient durability of traditional facing mortar are synergistically solved by constructing a triple protection mechanism of chemical adsorption, physical barrier and light stability, the key indexes such as the saltpetering-resistant qualification rate, the weather resistance grade and the strength retention rate of the facing mortar can be improved, and the facing mortar has the advantages of high strength, high durability and the like. Furthermore, the decoration effect durability and the engineering applicability of the colored facing mortar are improved.

The invention discloses a visual efficient chloride ion removal adsorbing material and a preparation method and application thereof.The adsorbing material is prepared by the steps that hollow glass microspheres serve as a carrier, and hollow glass porous particles are synthesized from a mixture of hollow glass microsphere powder and a pore forming agent through a sol-gel method; the preparation method comprises the following steps: modifying the surface of a porous adsorption material through a low-temperature plasma bombardment technology to enhance the adsorption performance on chloride ions, and loading magnetic iron oxide nanoparticles on the porous adsorption material to prepare the chloride ion adsorption material; the adsorption material has the characteristic of environmental friendliness, not only can efficiently adsorb chloride ions in a water body, but also can realize the visualization of the adsorption process through the density difference before and after adsorption, has the characteristics of repeated use and easiness in regeneration, and has relatively high market application prospect and economic value.

The invention discloses a covalent organic framework (CD-COF-Li) applied to a solid-state lithium battery electrolyte material. The synthesis of the covalent organic framework comprises the following process steps: step 1, synthesizing carboxymethyl-beta-cyclodextrin; step 2, synthesizing carboxymethyl-beta-cyclodextrin sulfonic acid; step 3, synthesizing carboxymethyl-beta-cyclodextrin lithium sulfonate; the prepared covalent organic framework (CD-COF-Li) material has the characteristics of relatively good ion conductivity, inhibition of lithium dendrites, improvement of battery safety, energy density and process compatibility, a continuous ion transmission channel is formed by using the highly ordered porous structure, high porosity and structural order of the material, an ion diffusion energy barrier is effectively reduced, a lithium ion conductor is introduced, and the performance of a lithium ion battery is improved. The ion adsorption and migration capability is enhanced, and the problems of ion conductivity and stability balance of the solid-state battery electrolyte and lithium dendrites and side reactions of a lithium metal negative electrode are solved.

The present invention discloses a method for extracting magnesium-lithium alloy using salt lake brine, which belongs to the technical field of light metal alloy material preparation. The method comprises the following steps: using ion adsorption, analysis, concentration and liquid adjustment on salt lake brine; using metal alkaline solution to adjust the pH of the solution, while performing a first precipitation, calcining the first precipitate to obtain MgO entrained with Li2O; using sodium carbonate solution to perform a second precipitation, dehydrating and drying the second precipitate to obtain a co-precipitated solid phase of MgCO3 and Li2CO3; adding CaO for vacuum thermal decomposition; adding a reducing agent and a catalyst for vacuum thermal reduction to obtain gas phase Mg and gas phase Li, using gas co-condensation technology to obtain crude Mg-Li alloy, and then refining and purifying to make Mg-Li alloys of different proportions. The present invention can effectively reduce process complexity and magnesium-lithium alloy manufacturing costs, reduce fixed asset investment, and ensure clean and environmental protection during the preparation process.

The application provides a biomass-based composite electrode material, an electrode sheet and a hybrid supercapacitor, and belongs to the technical field of electrochemical energy storage. 3 The biomass-based composite electrode material comprises: a biomass-derived porous carbon matrix, pores with multiple pore sizes, the volume of the pores is 0.7-1.7 cm 2 / g; and nickel-cobalt layered double hydroxide nanosheets vertically anchored on the surface of the biomass-derived porous carbon matrix; the specific surface area of the composite electrode material is 900-1400 m 2 / g. The biomass-based composite electrode material of the application significantly improves the ion adsorption and charge storage capacity. In addition, the electrode material is applied in a capacitor, which effectively improves the energy density, electrode conductivity and cycle stability of the supercapacitor.

Modified polycaprolactone, zinc oxide and DMF are mixed to prepare a spinning solution, then the spinning solution is subjected to electrostatic spinning, drying and cutting, the tourniquet is prepared, modified polycaprolactone contains a quaternary ammonium salt structure, quaternary ammonium salt can adsorb bacteria with negative electricity through positive ions of the quaternary ammonium salt, and the antibacterial function is achieved. According to the tourniquet disclosed by the invention, zinc oxide is added into modified polycaprolactone, a hydrophobic group is inserted into a lipoid layer of a cell membrane, so that bacterial envelope dissolution and content release are caused, and further bacterial death is caused, zinc oxide can generate reactive oxygen free radicals when the tourniquet is illuminated, and further the bacterial cell membrane is damaged, so that the tourniquet has a very good antibacterial effect; according to the present invention, the cyclodextrin as the sacrificial conformation is embedded in the molecular skeleton, the conformation of the cyclodextrin is changed when the material is subjected to the external force so as to consume the energy, and the hyperbranched distribution of the polysiloxane chain segment and the polycaprolactone substantially improves the mechanical property of the material so as to improve the durability of the tourniquet;