43 results about "Ionic adsorption" patented technology

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.

The application provides a method for high-selectivity adsorption of extremely low concentration NH3 by using alcohol amine ionic liquid microporous materials, and belongs to the technical field of gas separation and purification. In the method, the ionic liquid microporous material uses a mesoporous material as a carrier, and is modified by a multi-site alcohol amine ionic liquid to form a novel ionic adsorption material with selective adsorption NH3 sites and microporous structure. Since the proton hydrogen on the cation of the alcohol amine ionic liquid can form a hydrogen bond with NH3, and the material has a micropore effect, the material can efficiently capture NH3, especially has high selectivity at extremely low NH3 concentration, and the adsorbed NH3 can be completely desorbed by heating or reducing pressure, and the adsorbent has good circulation after regeneration, and still has a high adsorption capacity after ten cycles, thereby providing a new way for efficient purification and separation of NH3.

The present application relates to a kind of electrolysis method of chlorine ion-containing water, electrolytic device and layered electrode.The electrolysis method of chlorine ion-containing water of the present application includes the following steps: make chlorine ion-containing water contact with chlorine ion selective barrier material, obtain treated water, then make the treated water contact with electrode, to occur the decomposition reaction of water and obtain oxygen and hydrogen, while obtaining undecomposed water, wherein by selecting the chlorine ion selective barrier material, to meet at least one condition defined in the specification.The present application improves the reaction efficiency while inhibiting the adsorption of chlorine ions by using selective chlorine ion selective barrier material, the operation method is simple and easy to realize large-scale production, so it has significant production advantages.

This invention discloses a high-salt-resistant polymer oil stabilizer and water control agent, its preparation method, and its application, belonging to the field of oil and gas production enhancement technology. This oil stabilizer and water control agent is prepared by low-temperature initiated copolymerization of acrylamide monomer, a salt-resistant monomer containing sulfonic acid groups, a cationic adsorbent monomer, and an acrylate-terminated Goerbert alcohol polyoxyethylene ether nonionic hydrophobic monomer. By introducing the synergistic effect of the nonionic hydrophobic monomer and the sulfonic acid monomer, the product exhibits excellent high-salt and high-hardness resistance, maintaining good stability and oil-water selectivity under high salinity and high hardness conditions. Simultaneously, the addition of β-cyclodextrin as a quick-dissolving agent significantly improves the dissolution rate, meeting the requirements for on-site online preparation. This agent is suitable for fracturing, profile control, and water-enhancing operations in low-permeability, high-salt reservoirs, offering advantages such as long-term stability, convenient application, and low cost.

The application belongs to the technical field of functional metal organic complexes, and particularly relates to a cadmium / zinc-based metal organic complex and a preparation method and application thereof. The complex has a molecular formula of The metal complex prepared by the application has stable structure and high thermal decomposition temperature, is suitable for a medium-high temperature catalysis and detection environment, and has simple synthesis method, mild condition, high yield and is suitable for large-scale preparation. The cadmium-based metal organic complex has temperature and ion double-response fluorescence performance, and is suitable for intelligent sensing and environmental monitoring; the zinc-based metal organic complex has ion adsorption function, and can be used for water quality purification and pretreatment.

The application relates to an iminodiacetic acid type chelating resin and a preparation method and application thereof, and the preparation method comprises the following steps: (1) in the case that the stirring speed is 200-350 r / min, two dispersants are dissolved in water, then ethylbenzene, glycidyl methacrylate, trimethylolpropane trimethacrylate, isooctane and di-t-butyl peroxide are added, the raw materials are reacted after ultrasonic mixing, centrifugal separation is carried out after the reaction is completed, the filter cake is cleaned and dried, and resin microspheres are obtained; (2) in the stirring state, the resin microspheres obtained in the step (1) are added into water, then iminodiacetic acid is added, stirring is continued, then preliminary reaction is carried out by heating, NaOH is further added, reaction is carried out by heating, after the reaction is completed, filtration, cleaning and drying are carried out, and the iminodiacetic acid type chelating resin is obtained. The chelating resin particle size can be controlled, the particle size is relatively large, the specific surface area is large, the adsorption capacity is high, and the chelating resin can be used for adsorbing lead ions in heavy salt matrix.

A method of adsorptive desalination and disinfection of saltwater, comprising: providing a volume of saltwater to be desalinated and disinfected; passing the volume of saltwater through a first cartridge assembly configured to disinfect and remove cations from the volume of saltwater, wherein the first cartridge assembly comprises an anion adsorbent comprising a polymeric impregnated iron (III) tannate amphoteric adsorbent configured to have anionic behavior, and passing the volume of saltwater through a second cartridge assembly configured to disinfect and remove anions from the volume of saltwater, wherein the second cartridge assembly comprises a cation adsorbent comprising a polymeric impregnated iron (III) tannate amphoteric adsorbent configured to have cationic behavior. In embodiments, the volume of saltwater is particulate free by sedimentation and filtration prior to passing through the cartridges. The method further comprises passing the volume of saltwater through a third cartridge assembly configured to remove any additional trace metal ions and to further disinfect the volume of saltwater.

This invention discloses a method for preparing a high-salinity intelligent responsive cement-based anti-salt corrosion and self-healing material. The method includes constructing an intelligent responsive base by preparing a microcapsule self-healing agent and regulating the ZIF-8 preparation process, followed by in-situ growth of Mg-Al-LDH and functional film coating. This achieves the synergistic functions of active anti-salt corrosion, efficient and stable self-healing, promoting cement hydration, and regulating ion adsorption in high-salt environments. This invention can accurately sense changes in high-salt environments and intelligently release the self-healing agent, realizing the dual functions of anti-salt corrosion and self-healing in cement-based materials. It can be widely applied in cement-based engineering projects in high-salt environments such as marine and salt lake environments, extending the service life of concrete structures.

The application discloses a treatment method of sewage containing halogen waste, and relates to the technical field of sewage treatment. The treatment method is under neutral to weak alkaline conditions, in which most halogen ions in sewage are adsorbed and removed by using an adsorbent, and residual halogen ions are deeply removed by using hydroxyapatite. Through the synergistic effect of the two, the sewage containing halogen waste can be effectively purified. The adsorbent used in the application not only realizes the reuse of industrial wastes such as steel slag and fly ash, improves environmental protection, but also can remove the adsorbent for adsorbing halogen waste through magnetic separation, thereby improving the treatment efficiency of the sewage.

The application discloses a kind of magnetic porous composite material and its preparation method and the application of adsorbing and purifying micro-nano plastic in water body.The magnetic porous composite material has three-dimensional network skeleton formed by microcrystalline region and hydrogen bond physical crosslinking between polyvinyl alcohol molecular chains, cationic polymer is physically inserted and distributed in the skeleton to provide cation adsorption sites, and magnetic nanoparticles are dispersed in the network;After freeze-drying, a hierarchical porous network structure containing 50-300 μm interconnected macropores and 3-10 nm mesopores is formed, wherein the interconnected macropores serve as mass transfer channels, and the mesopores and cation adsorption sites cooperate to achieve physical entrapment and electrostatic adsorption of micro-nano plastic.The present application does not require any chemical crosslinking agent, can be quickly separated by an external magnetic field, has the advantages of high adsorption efficiency, strong environmental adaptability, easy magnetic separation and multiple cycle regeneration, and is suitable for the enrichment, detection pretreatment and purification of micro-nano plastic in water body.

The application discloses a preparation method of vanadium phosphate nanosheet and application thereof. The preparation method of the vanadium phosphate nanosheet comprises the following steps: A) dissolving a phosphate anion surfactant in a mixed solution of ethanol and water to obtain a solution I; B) mixing a compound containing vanadium ions with the solution I to perform ion adsorption, and through hydrothermal reaction, centrifugation, freezing, drying and annealing treatment, ordered mesoporous vanadium phosphate nanosheet is obtained; the vanadium ions are selected from at least one of divalent, trivalent, tetravalent and pentavalent. When the ordered mesoporous vanadium phosphate nanosheet is used as a positive electrode material of a quasi-solid-state lithium metal battery, the ordered mesoporous vanadium phosphate nanosheet has super-high specific capacity and excellent rate performance, and can realize stable multi-electron reaction. The preparation method has the advantages of low raw material cost, simple process, simple equipment, high efficiency, high repeat efficiency, and important application prospect of the prepared lithium ion battery.

The application provides a kind of electrolyte of aqueous zinc ion battery and its preparation method and application, including medium viscosity (200~400 mPa.s) chitosan and L-ascorbic acid, wherein the mass ratio of the chitosan added to the volume of the solvent in the electrolyte is 0.4 g / L~3.2g / L.The electrolyte of the application forms a macromolecular complex through ion adsorption by introducing chitosan and L-ascorbic acid, and establishes a dynamic and dense protective interface on the surface of zinc negative electrode by using its specific adsorption group (such as enediol structure), thereby achieving synergistic effect from two aspects of solvation structure regulation and interface chemical modification, and ultimately improving the cycle life and electrochemical performance of aqueous zinc ion battery.

The application provides a method for preparing a zinc ion adsorbent from alkali hydrothermal modified lepidolite slag, and relates to the technical fields of resource comprehensive utilization and water treatment. The method comprises the following steps: firstly, drying and grinding and screening lepidolite smelting slag to obtain original lepidolite slag with a size of 100 meshes; then, mixing the original lepidolite slag with a NaOH solution, and performing a hydrothermal reaction in a micro reaction kettle; after the reaction, cleaning and drying the filter residue to obtain an alkali hydrothermal modified lepidolite slag adsorbent; finally, adding the adsorbent into a zinc ion-containing solution, and placing the solution in a water bath constant temperature oscillator to perform adsorption; filtering the adsorbed solution to obtain purified wastewater, and using an inductively coupled plasma emission spectrometer to determine the zinc ion adsorption rate. The adsorbent used in the method is low in price, simple in operation, and good in adsorption effect; the application uses the alkali hydrothermal modified lepidolite slag to adsorb zinc ions in water, and simultaneously solves the problems of lepidolite smelting slag storage and zinc-containing wastewater discharge polluting the ecological environment.

The application relates to the technical field of gas detection, in particular to a method and device for detecting the concentration of chlorine ions in air, which comprises the following steps: obtaining aerosol particles and identifying adsorption tracks, following the particle contact liquid surface behavior, analyzing diffusion paths and residence areas, extracting abnormal diffusion characteristics, screening interference ion tracks, eliminating interference behavior, extending the migration range of chlorine ions, and obtaining the detection result of the concentration of chlorine ions in air. In the application, the adsorption behavior of chlorine ions is identified through the particle attachment path, the residence area is screened in combination with the boundary distribution and residence characteristics in the liquid surface development process, the abnormal area is analyzed according to the direction deviation and track change in the migration path, the interference behavior is eliminated according to the contact relationship of the track in space, the migration track not affected by interference is extended to the range of the gas sample, the tracking of the moving trend of chlorine ions and the identification of the concentration state are completed, the response deviation problem in the conversion process is avoided, and the coherence of the path identification of the particle behavior is enhanced.

This invention belongs to the field of rare earth material preparation technology and discloses a method for preparing a rare earth antibacterial carrier. The specific steps are as follows: (1) rare earth chloride, zinc chloride and zirconium oxychloride are prepared into a mixed aqueous solution; (2) the mixed aqueous solution is heated, PEG and glacial acetic acid are added, mixed evenly, the pH of the mixed solution is adjusted to 6.7-7, the precipitate is filtered, dried, and the first reactant is obtained; (3) the first reactant is slurried with water, concentrated phosphoric acid and 1-butyl-3-methylimidazolium dibutyl phosphate are added, the reaction is carried out, the precipitate is filtered, dried, and a rare earth antibacterial carrier with an ion adsorption capacity of 1g / 100g-5g / 100g is obtained. This invention has the characteristics of simple operation, short reaction time, low reaction temperature, easy washing and filtration of reactants, large specific surface area of ​​the carrier, and high metal ion loading.

To provide a fluorine-containing monocyclic aromatic compound that has high chemical resistance, and also has fluorine affinity and metal ion adsorption characteristics.SOLUTION: A fluorine-containing monocyclic aromatic compound, represented by a formula (3), comprises a fluorous structure and a functional group in a part of a benzene ring structure.SELECTED DRAWING: Figure 6

This invention discloses a method for preparing an amino acid-based metal cation adsorbent and its application. This invention belongs to the technical field of radioactive waste gas treatment and functional adsorbent materials. The amino acid-based metal cation adsorbent prepared by this invention is a composite material in which an amino acid-based metal cation ionic liquid is mounted on a three-dimensional porous substrate. Through the synergistic mechanism of mass transfer from the three-dimensional porous substrate and chemical complexation and physical dissolution of the ionic liquid, it achieves efficient capture and irreversible fixation of elemental iodine (I2) and iodine aerosol in nuclear medical waste gas. The material is prepared under mild conditions, without the need for high temperature and high pressure, has stable chemical properties, and the production process is green, pollution-free, and easy to control. It exhibits excellent application effects in the fields of nuclear medical iodine waste gas and iodine aerosol purification, providing an efficient, low-cost, and easily industrialized solution for the treatment of radioactive iodine waste gas in nuclear medical settings.

The application belongs to the technical field of thickening agent preparation, and particularly relates to a preparation method of a thickening agent for fracturing. The preparation method of the thickening agent for fracturing comprises the following steps: (1) pre-emulsification treatment of dicyclopentadiene oxyethyl acrylate; (2) preparation of an aqueous phase; (3) preparation of an initiator solution; (4) polymerization reaction; and (5) post-treatment. The preparation method of the thickening agent for fracturing comprises the following steps: acrylamide is used as a main monomer, dicyclopentadiene oxyethyl acrylate, 4-[(3-methacrylamidopropyl)dimethylammonio]butane-1-sulfonate and isobutylene amide propyl trimethyl ammonium methyl sulfate are used as functional monomers to perform random copolymerization reaction, a multi-element random copolymerization structure of "rigid temperature-resistant chain segment-amphoteric ion salt-resistant chain segment-cationic adsorption chain segment" is constructed, and the prepared thickening agent for fracturing has excellent salt resistance, high-temperature resistance and high tackifying performance.

An adsorptive desalination and disinfection method for salt water includes providing a volume of salt water to be desalinated and disinfected; passing the volume through a first filter cartridge assembly configured to disinfect and remove cations from the volume, wherein the first filter cartridge assembly comprises an anionic sorbent comprising the polymer impregnated iron (III)-tannate amphoteric sorbent configured to exhibit anionic behavior, and passing the volume through a second filter cartridge assembly configured to disinfect and remove anions from the volume, wherein the second filter cartridge assembly comprises a cationic sorbent comprising the polymer impregnated iron (III)-tannate amphoteric sorbent configured to exhibit cationic behavior. The volume has particulate removed through settling and filtering prior to passing through the filter cartridges in embodiments. The method also includes passing the volume through a third filter cartridge assembly configured to remove any additional trace metal ions and further disinfect the volume.

The application discloses tobacco extract, atomized liquid and a preparation method and application thereof, and belongs to the technical field of electronic atomization products. The preparation method of the tobacco extract comprises the following steps: taking tobacco water extract to perform thermal decomposition, electrodialysis treatment and adsorption treatment, and preparing the tobacco extract. The tobacco extract is prepared by taking tobacco water solution to perform cracking, electrodialysis treatment and adsorption treatment. The cracking can enrich volatile aroma components, avoid the influence of macromolecules such as polysaccharides and proteins, and reduce the generation of harmful substances such as tar. The electrodialysis can effectively remove ions. The adsorption treatment can further purify the tobacco extract, reduce the generation of nitrosamine substances, ensure the atomization performance and sensory experience of the tobacco extract in the case of no ethanol residue and ethanol contact, and solve the problem that the safety or use of the tobacco extract is limited due to ethanol residue or ethanol contact.

The application provides a preparation method of a sulfur ion intercalation zinc-manganese LDH supported biochar composite material, which comprises the following steps: washing and drying rice straw, crushing and sieving the rice straw to obtain rice straw powder; taking the rice straw powder, adding zinc chloride and manganese chloride tetrahydrate, and dispersing the mixture in deionized water to obtain a mixed solution; adjusting the pH of the mixed solution to alkaline, continuing to stir, centrifuging and washing, and drying to obtain a precursor powder; pyrolyzing the precursor powder in an inert atmosphere to obtain a zinc-manganese layered double hydroxide supported biochar composite material; and performing sulfur ion intercalation treatment on the composite material, centrifuging and washing, and drying to obtain a target material. The application also provides the composite material prepared by the above method and application. The zinc-manganese layered double hydroxide is supported on the biochar and modified by sulfur ion intercalation, so that the defects of single biochar, i.e. weak adsorption capacity for heavy metal anions, are compensated, and the synchronous and efficient adsorption and removal of heavy metal ions in water are realized.

The present application relates to the technical field of disinfectant, and discloses a broad-spectrum, efficient and persistent chlorine oxyacid system disinfectant, which is composed of core material A, high-performance modified surface active coating material B and buffer coating layer D; compared with the prior art, the present application effectively solves the core problems of poor stability, insufficient persistence and limited disinfection efficiency of traditional solid disinfectants, and has stronger and more obvious three-dimensional and stereoscopic sterilization effect through oxidation sterilization, chlorination sterilization and acidification (cation adsorption and penetration) sterilization. The present application does not need to add complex auxiliary components, has simple and easy-to-control preparation process, is suitable for large-scale production, and has flexible dilution ratio when used, and is suitable for various scenes. The disinfectant of the present application realizes overall improvement in broad-spectrum, efficiency, persistence and stability, provides a more reliable disinfection solution for the fields of medical health, food processing, environmental cleaning and the like, and has significant practical value and market prospect.

This invention provides a sulfonium salt cationic adsorbent, its preparation method, and its application. The preparation method of the sulfonium salt cationic adsorbent involves first performing a ring-opening polymerization reaction on methionine monomers to form a methionine polymer; then, using this bacterially selective methionine polymer as a base, a bacterial adsorbent is further prepared. One route involves cross-linking the aforementioned methionine polymer base with a halogen-containing compound to form a cross-linked sulfonium salt structure. Another route involves first modifying the aforementioned methionine polymer base with a compound containing functional groups, introducing reactive functional groups into its side chains, and then cross-linking the modified methionine polymer with a cross-linkable compound to form a cross-linked sulfonium salt structure; or mixing the modified methionine polymer with a loadable matrix to coat the surface of the matrix with a layer of sulfonium salt polymer. The above adsorbents can effectively adsorb bacteria without causing thrombosis or coagulation.

This utility model discloses a multifunctional water system and a water purifier. The multifunctional water system includes a pipeline system and an electrodialysis unit and an RO unit connected in parallel within the pipeline system. The electrodialysis unit includes an electrodialysis filter cartridge with ion adsorption function, and the RO unit includes an RO filter cartridge. Raw water can be purified by the electrodialysis unit and / or the RO unit before being discharged. During the regeneration of the electrodialysis filter cartridge, the raw water can flow back through the electrodialysis unit. In the later stage of regeneration, the RO unit produces water and distributes a portion of the purified water back through the electrodialysis unit to rinse the electrodialysis filter cartridge. Users can select the electrodialysis unit and / or the RO unit to produce water according to their needs to obtain water with corresponding purification effects, thereby meeting various user needs. Furthermore, during the regeneration of the electrodialysis filter cartridge, the RO filter cartridge can still be used to produce water, ensuring an uninterrupted water supply to the user and guaranteeing the user's water consumption needs.

The present invention relates to an electrolysis method for chloride ion-containing water, an electrolysis apparatus, and a layered electrode. The electrolysis method for chloride ion-containing water of the present invention comprises the following steps: bringing chloride ion-containing water into contact with a chloride ion selective barrier material to obtain treated water; and then bringing the treated water into contact with an electrode to cause a decomposition reaction of water to obtain oxygen and hydrogen, and simultaneously obtain undecomposed water, wherein the chloride ion selective barrier material is selected to satisfy at least one condition explicitly defined in the description. In the present invention, by using the selective chloride ion selective barrier material, the reaction efficiency is improved while chloride ion adsorption is suppressed, and the operation method is simple and more readily facilitates large-scale production, thereby providing the present invention with significant production advantages.

The application relates to the field of essences, in particular to a long-lasting microcapsule essence and a preparation method and application thereof. The long-lasting microcapsule essence is composed of an essence core and a coated functional capsule wall structure; the essence core comprises high-volatility top notes, medium-volatility body notes and low-volatility base notes; the capsule wall structure comprises an inner wall material, an outer wall material and a surface modification layer; the inner wall material is a hydrophobic layer, the outer wall material is a hydrophilic layer, and the surface modification layer is a cationic adsorption layer. The three different volatile essences of the essence core of the application give the microcapsule essence a sense of layers and dynamic changes in aroma release; the hydrophobic inner wall material is used to physically seal the essence core, so that the essence is prevented from volatilizing and deteriorating too early; the hydrophilic outer wall material realizes mechanical protection of the essence core; and the cationic adsorption layer can enhance the adsorption capacity of the microcapsule essence and a negatively charged substrate, so that the long-lasting of the microcapsule essence is realized.