50 results about "Antichlor" patented technology

The invention discloses a preparation method of an acid-resistant chlorine-resistant selective palladium adsorbent, and relates to a preparation method of a selective palladium adsorbent. The invention aims to solve the technical problems of poor structural stability, low adsorption capacity, poor selectivity and difficulty in cyclic regeneration of the existing palladium adsorbent in strong acid and high chlorine systems. According to the preparation method, fumarinonitrile is taken as a cyanogen-containing monomer, zinc chloride is taken as a catalyst, a triazine skeleton network is constructed through an ionothermal trimerization reaction, no organic solvent or expensive catalyst is needed in the process, the reaction condition is mild, the process is simple and convenient, and good environmental compatibility is achieved; the PdCl4 < 2->-doped porous carbon material provides abundant coordination sites, has a relatively large specific surface area and a developed porous structure, can effectively promote mass transfer and adsorption of metal ions, can form stable complexation with PdCl4 < 2->, shows extremely high palladium adsorption capacity and selectivity, and can still keep structural integrity and adsorption activity under strong acid and high chlorine conditions.

The present invention relates to the technical field of blast furnace gas desulfurization, and specifically relates to an activated carbon-based desulfurizer and a preparation method thereof. The desulfurizer is obtained by this method. This method includes pickling waste activated carbon to obtain modified activated carbon, cerium salt loading, combined loading of iron salt and vanadium salt, anti-chlorine and sulfur treatment, and calcination activation to obtain the desulfurizer. The sulfur capacity of the activated carbon-based desulfurizer prepared by the present invention can be increased to 44% - 48%, and the activation energy for sulfides can also be reduced. It can catalyze organic sulfur and inorganic sulfur at 20 - 50 °C, greatly reducing energy consumption; among them, the removal rates of carbonyl sulfide and carbon disulfide are both greater than or equal to 98%, and the removal rate of H2S is greater than or equal to 99%.

The invention discloses a high-activity and high-stability bimetallic catalyst and a preparation method thereof, and particularly relates to a catalyst which takes cerium oxide as a carrier and takes transition metal molybdenum and noble metal platinum as active components. The catalyst can be generally used for industrially discharged chlorine-containing or chlorine-free volatile organic compounds and organic waste gases formed by other oxygen-containing or oxygen-free organic compounds; the prepared bimetallic catalyst is excellent in catalytic performance, and still has good activity, high thermal stability and long service life of chlorine poisoning resistance at a high space velocity.

The invention discloses a preparation method of a FeP / Co2P / NF electrocatalytic seawater hydrogen evolution chlorine-resistant electrode plate, relates to a preparation method of an electrode, and aims to solve the technical problems of poor chlorine resistance, few active sites and poor catalytic effect of the conventional TMPs electrode. The method comprises the following steps: after removing oil and an oxide layer from a foamed nickel substrate, putting the foamed nickel substrate into a mixed solution of cobalt salt, ammonium chloride and urea for hydrothermal reaction; then putting into a mixed solution of ferric salt, urea, aluminum nitrate nonahydrate and sodium dodecyl sulfate for hydrothermal reaction; and soaking with an alkaline solution and then carrying out high-temperature phosphorization to obtain the electrode plate. The overpotential of the electrode plate is 30-38 mV when water is electrolyzed for hydrogen production under the current density of 10 mA. Cm <-2 >, the overpotential of the electrode plate is 66-77 mV when seawater is electrolyzed for hydrogen production, the current density is reduced by 15%-20% after the electrode plate works for 100 hours, and the electrode plate has good chlorine resistance and can be used in the field of water electrolysis for hydrogen production.

The invention discloses a catalyst for seawater electrolysis oxygen evolution reaction and a preparation method thereof, and the preparation method comprises the following steps: firstly, adding a certain amount of urea and ammonium salt in a hydration reaction synthesis process to prepare NiFe-LDH with a three-dimensional microsphere structure; then, the NiFe-LDH is subjected to nitridation and phytic acid treatment in sequence, and Ni3Fe1N-PA modified by a phytic acid organic layer and provided with a three-dimensional microsphere structure is prepared. The organic phytic acid layer interacts with Ni3Fe1N through interface coupling, the electronic structures of Ni and Fe can be effectively adjusted, high-valence metals Ni and Fe in a high proportion are induced by a phosphate group, and the electrocatalytic oxygen evolution performance of Ni3Fe1N is improved. The special multi-layer structure formed by the Ni3Fe1N and the phytic acid in-situ reconstructed Fe-NiOOH can jointly promote the rejection of the catalytic electrode to chloride ions, so that the chlorine corrosion resistance of the electrode in seawater electrolysis is enhanced, and the excellent oxygen evolution stability in seawater is realized.

This invention discloses a chlorine-resistant PPR composite material, its preparation method, and its application, relating to the technical field of polypropylene materials. A chlorine-resistant PPR composite material comprises the following components in parts by weight: 92-97 parts of random copolymer polypropylene; 0.1-3 parts of chlorine-resistant agent; 0.05-1 part of antioxidant; and 0.5-2 parts of lubricant. The chlorine-resistant agent is a polyethylene glycol-bridged hindered phenolic antioxidant, wherein the molecular weight of polyethylene glycol in the polyethylene glycol-bridged hindered phenolic antioxidant is 4500-6000 g·mol⁻¹. ‑1 The weight-average molecular weight of the random copolymer polypropylene is 64-69 W. The PPR composite material described in this invention has excellent chlorine resistance, and its addition to PPR pipes can give the PPR pipes excellent migration resistance.

The invention is suitable for the technical field of test monitoring, and provides a test control method and system based on polyolefin pipe anti-chlorine equipment, and the method comprises the steps: firstly obtaining real-time monitoring parameter set information and target experiment parameter set information of target anti-chlorine equipment, and then generating and executing parameter adjustment instruction information based on the real-time monitoring parameter set information and the target experiment parameter set information. According to the system, a systematic linkage control system of experimental parameters and online monitoring of multiple core parameters can be realized, so that testers can accurately master a specific test state, the residual chlorine amount, the PH value, the ORP value and the pipeline pressure value can be stabilized in a preset reasonable range, the test error of the anti-chlorine test aging degree is remarkably reduced, and the test efficiency is improved. The reliability and consistency of test results are greatly improved, experimental data can be collected at certain intervals according to set parameters, traceable files are formed, subsequent data analysis and quality tracking are facilitated, and solid technical support and data support are provided for evaluation of the chlorine resistance of the polyolefin pipe.

The invention discloses a high chlorine resistance pipe and a preparation method thereof.The high chlorine resistance pipe comprises a pipe body, the pipe body is sequentially provided with a first layer, a second layer and a third layer outwards in the radial direction, the manufacturing material of the first layer comprises an anti-chlorine modifier, the anti-chlorine modifier is a mixture of styrene-sulfonic acid copolymer and surface modified nano zinc oxide, and the anti-chlorine modifier is a mixture of styrene-sulfonic acid copolymer and surface modified nano zinc oxide; the styrene-sulfonic copolymer is prepared by copolymerizing styrene and sodium 4-styrenesulfonate, the surface of the nano zinc oxide is modified by a silane coupling agent, the second layer is prepared from a toughening agent which is an ethylene-octylene copolymer, and the third layer is prepared from polypropylene random copolymer. According to the high-chlorine-resistance pipe and the preparation method thereof, the chlorine resistance of the pipe is improved.

The invention belongs to the technical field of preparation of composite membrane materials, and particularly relates to an antibacterial nanofiltration membrane based on a bimetal organic coordination coating as well as a preparation method and application of the antibacterial nanofiltration membrane. Phytic acid is grafted on the surface of a polyamide composite membrane, bimetal ions are complexed on the surface of the phytic acid to form a phytic acid bimetal complex, and the antibacterial nanofiltration membrane with a bimetal organic coordination coating is obtained. The metal ions and the organic phosphoric acid are fixed in the polyamide separation membrane through the coordination reaction, the prepared antibacterial nanofiltration membrane has high flux, high interception, pollution resistance, chlorine resistance and antibacterial performance, and the service life of the nanofiltration membrane is prolonged.

The present invention provides a catalyst for chlorinated organic waste gas, a preparation method thereof and an application thereof. The preparation method includes step S1: cleaning and filtering iron-containing dust to obtain iron sand; step S2: obtaining a crushed material, wherein the molar ratio of copper to praseodymium is 1:1; step S3: controlling the water content in the wet mixed material to be 20%-25%; step S4: successively aging, filtering and pre-extruding the wet mixed material to obtain a solid material, and extruding the solid material by an extruder to obtain a green body, and the green body is in a honeycomb shape or a column shape; step S5: drying and calcining the green body to obtain a catalyst for chlorinated organic waste gas. The catalyst for chlorinated organic waste gas is obtained by the preparation method. The application is the application of the catalyst for chlorinated organic waste gas in catalytic degradation of chlorinated organic waste gas. The catalyst prepared by the present invention has low cost, anti-chlorine poisoning, high activity, high stability and high selectivity.

The invention discloses a polyamide reverse osmosis membrane with a high rejection rate and a preparation method thereof, and relates to the technical field of membrane separation. The preparation method comprises the following steps: selecting a polyether sulfone ultrafiltration base membrane as a supporting layer to ensure the basic characteristics of higher mechanical strength and chemical resistance, carrying out pretreatment on a lauryl sodium sulfate solution, N, N, N-trimethyl chitosan and sodium deoxycholate to enhance the hydrophilicity and provide active sites for forming polyamide by interfacial polymerization, and adding a surfactant into a water-phase solution to improve the mechanical strength and chemical resistance of the membrane. The preparation method comprises the following steps: adding an amine monomer into an oil phase solution, accelerating the diffusion rate of the amine monomer in an interfacial polymerization reaction, adding modified silicon dioxide into the oil phase solution, forming a stable organic silicon grafting layer on the surface of nano silicon dioxide, grafting tert-butylhydroquinone on the surface of nano silicon dioxide, reducing the attack of chlorine on a polyamide chain, and improving the chlorine resistance of the polyamide chain; the rejection rate of the polyamide reverse osmosis membrane on salt inorganic matters is improved by regulating and controlling surface charges of the base membrane, activating an interface and introducing an anti-chlorine group.

The present invention relates to an Ag / Cr x ‑NiFe 1‑x OOH / NF electrolysis seawater oxygen evolution catalyst and its preparation method and application, the present invention is to in situ construct Cr on the nickel foam substrate by mixing a solution containing a divalent nickel source, a trivalent iron source, a trivalent chromium source, urea and an alkaline solution. x ‑NiFe 1‑x OOH / NF, and using spontaneous redox reaction to load silver nanoparticles on its surface, a Ag / Cr with excellent chlorine corrosion resistance was obtained. x ‑NiFe 1‑x OOH / NF. By precisely controlling the ratio of Cr to Fe, the present invention achieves a delicate balance between order and disorder in the crystal structure of the material, achieving controllable growth of nanosheets within a thickness range of 25-1 nm and controllable adjustment of the nanosheet morphology. At the same time, Ag nanoparticles and CrO₄²⁻ anion groups generated in situ under high potential synergistically construct a barrier against chloride ion corrosion, forming a "surface Ag-Cl fixed + interlayer CrO4 2‑ -Dual anti-Cl2 with "shielding effect" – Corrosion structure, significantly improving corrosion resistance and catalytic activity, also has high selectivity and high stability, and can be used for electrolysis of alkaline water or seawater for oxygen evolution.

The application relates to the technical field of functional materials, and discloses a NiFe-based catalyst resistant to chlorine corrosion and a preparation method and application thereof, the preparation method comprising the following steps: dispersing a nickel source, a zinc source, an iron source and a precipitant in deionized water, uniformly stirring and then reacting, and preparing a precursor after cooling, washing and drying; and placing the precursor in a strong alkali solution, performing immersion etching, and obtaining the catalyst. The precursor with rich active sites is uniformly grown on the substrate through a hydrothermal method, and the Zn is partially etched through a normal-temperature immersion etching method, a large number of oxygen vacancies are introduced, the overpotential of OER is significantly reduced, and the OER activity in seawater splitting is promoted.

The present disclosure directs to the technical field of epoxy resins, and particularly relates to an antichlor and a preparation method as well as an application thereof, for solving problems in existing chlorine removal methods that separation efficiency of an epoxy resin containing hydrolyzable chlorine is low, lots of energy needs to be consumed in the separation process, molecular distillation equipment is expensive and requirements on vacuum degree and material tightness are high. The antichlor is a polymer containing keto-carbonyl groups. The preparation method includes: adding a mixed solution of styrene and ketene into a reactor containing an organic solvent; adding an initiator, a coupling agent and an anti-gelling agent into the reactor under an atmosphere of shielding gas; controlling the styrene and ketene to perform a polymerization reaction under first preset reaction conditions; and removing the organic solvent after completion of the polymerization reaction, thereby obtaining the antichlor.

The invention discloses an adsorbent for removing sulfuric acid, a preparation method of the adsorbent and a method for removing trace sulfuric acid in chlorine. By preparing the efficient adsorbent, the removal of the sulfuric acid fog drops in the crude chlorine is realized. The process for removing the sulfuric acid fog drops by the dry method is simple in flow, the chlorine resistance of the adsorbent is relatively excellent, the operation stability of a reaction unit Ru-based catalyst is greatly improved after the adsorbent is put into use, the service life of the catalyst is prolonged, and the production cost of liquid chlorine is reduced.

The application belongs to the technical field of electrocatalytic materials, and particularly relates to a chlorine corrosion resistant composite electrode and a preparation method and application thereof. M The preparation method comprises the following steps: pretreatment of foamed nickel; hydrothermal synthesis of Mo-NiFe LDH electrode; preparation of Pi-V M -NiFeOOH composite electrode. Compared with the prior art, the application solves the problems of insufficient chlorine corrosion resistance and activity of the existing NiFe LDH in seawater. The composite electrode of the scheme realizes high activity, low cost and strong chlorine corrosion resistance, and is a seawater full-decomposition bifunctional electrocatalyst, which can be efficiently and stably applied in seawater electrolysis.

The invention relates to the technical field of catalysts, in particular to a catalyst for chlorobenzene purification and a preparation method thereof. The preparation method of the catalyst comprises the following steps: dissolving copper salt and cerium salt in water to obtain a solution A; adding an oxalic acid solution into the solution A and stirring to obtain a turbid liquid; and centrifugally separating the suspension, centrifugally washing the obtained solid until the solid is neutral, drying and calcining to obtain the catalyst. According to the invention, a reverse load dispersion process is utilized, and a traditional carrier is controllably deposited on an active component, so that the reverse load dispersion type catalyst with high activity and low energy consumption is prepared. The catalyst provided by the invention is used for low-temperature stable catalytic oxidation of chlorobenzene, shows excellent chlorine resistance, can greatly reduce the operation cost of enterprises, and effectively reduces the economic cost of commercial catalysts.

The invention discloses a CeO2 (at) mSiO2 (at) Ni2P catalyst with a core-shell structure as well as a preparation method and application of the CeO2 (at) mSiO2 (at) Ni2P catalyst. CeO2 is taken as a core and is coated with a mesoporous silica layer, and the outermost layer is subjected to phosphating treatment to form a Ni2P active phase, so that the composite catalyst with a core-shell structure is formed. The catalyst is prepared through the steps of a hydrothermal method, a template method, dipping precipitation, phosphating reduction and the like, and has a high specific surface area, a rich pore structure and highly dispersed active sites. In catalytic elimination of chlorine-containing volatile organic compounds such as chlorobenzene, the catalyst shows high catalytic activity, excellent deep mineralization efficiency and outstanding chlorine poisoning resistance stability through a series reduction-oxidation reaction path, and efficient conversion and degradation of chlorobenzene can be realized at a relatively low temperature.

The invention relates to the technical field of catalysts, in particular to a non-noble metal catalyst for chlorobenzene purification and a preparation method thereof. The preparation method of the non-noble metal catalyst comprises the following steps: dissolving A salt and B salt in water to obtain a solution A; adding the solution B into the solution A, and uniformly mixing to obtain a turbid liquid; performing centrifugal separation on the turbid liquid, washing the obtained solid to be neutral, drying, and calcining to obtain the catalyst; the A salt is aluminum salt or titanium oxide; the salt B is cerium salt or manganese salt; the solution B is a sodium bicarbonate aqueous solution or an oxalic acid solution. Manganese or cerium is used for constructing a core site for chlorobenzene degradation, and titanium or aluminum is used for constructing an effective protection layer of an active site. The catalyst is good in chlorobenzene catalytic oxidation performance and shows excellent chlorine resistance, the enterprise operation cost can be greatly reduced, and the economic cost of a commercial catalyst is effectively reduced.

The invention discloses a chlorobenzene tail gas treatment catalyst and a preparation method thereof, and belongs to the technical field of chemical catalysis. According to the catalyst, cordierite porous ceramic, hydroxyl copper phosphate and boron nitride nanosheets form a composite carrier, and Fe-Co-Li-Pr quaternary composite oxide active components are loaded. A unique chemical adsorption-heat management dual-path chlorine poisoning resisting mechanism is formed through the reversible complexing effect of phosphate radical groups of copper hydroxyphosphate and chloride ions and a heat conduction network constructed by the boron nitride nanosheets, and inactivation of active sites is effectively inhibited. Meanwhile, the cascade effect of electron transfer, acid-base optimization and oxygen circulation is realized through the synergistic effect of the Fe-Co spinel structure, Li and Pr, and the reaction energy barrier is remarkably reduced. The catalyst has the comprehensive advantages of low-temperature high activity, excellent moisture resistance, excellent long-acting stability and strong poisoning resistance in chlorobenzene tail gas treatment.

The application discloses an anti-chlorine polyolefin pipe and a preparation method thereof, and belongs to the technical field of polymer pipes. The anti-chlorine polyolefin pipe comprises an inner layer and an outer layer, and the inner layer comprises the following components in parts by mass: 92-97 parts of a first PP-R resin and 3-8 parts of an anti-chlorine agent. The anti-chlorine polyolefin pipe provided by the application introduces the anti-chlorine agent into the inner layer, the anti-chlorine agent is prepared by compounding molybdenum disulfide, aminoethyl mercaptan, dicyclohexyl carbodiimide and an antioxidant, the antioxidant in the inner layer can be effectively prevented from migrating into tap water, the inner layer of the pipe can continuously release the antioxidant, the released antioxidant plays a barrier and protection role on the inner layer of the pipe, so that the polyolefin pipe provided by the application has good anti-chlorine performance, and the pipeline system of the polyolefin pipe can stably operate under the actual working condition of the tap water containing chlorine.

The invention discloses a PE-Xa pipe with chlorine resistance as well as a preparation method and application of the PE-Xa pipe, and relates to the technical field of high polymer materials. The PE-Xa pipe comprises the following raw material components in parts by weight: 100 parts of high density polyethylene; 0.2 to 1 part of a cross-linking agent; 0.5 to 1.5 parts of modified hydrotalcite; 0.3 to 0.8 part of sulfonated ion exchange resin microspheres; 0.3 to 1 part of an antioxidant; 0.1 to 0.3 part of zinc oxide whisker; the modified hydrotalcite comprises magnesium aluminum hydrotalcite and nano zero-valent iron loaded on the magnesium aluminum hydrotalcite; the sulfonated ion exchange resin microspheres are formed by sulfonating ion exchange resin microspheres, and the ion exchange resin microspheres comprise at least one of styrene anion resin microspheres, polyacrylic acid anion resin microspheres, epoxy anion resin microspheres and quaternized styrene resin microspheres. The PE-Xa pipe disclosed by the invention has excellent chlorine resistance and cracking resistance.

The invention relates to the technical field of hazardous waste resource utilization, in particular to an anti-poisoning catalyst for fly ash low-temperature pyrolysis and a preparation method thereof.According to the catalyst, hierarchical pore titanium dioxide serves as a carrier, vanadium pentoxide serves as an active component, cerium-zirconium composite oxide is introduced to serve as a chlorine trapping agent, and phosphate serves as a heavy metal stabilizer. Through unique component design, the catalyst can effectively solve the problem that the catalyst is poisoned and inactivated due to chlorine and heavy metals in a fly ash pyrolysis environment. The cerium-zirconium component dynamically captures gas-phase chlorides through a reversible reaction, and active sites are protected; the phosphate component can react with heavy metals in situ to generate stable minerals, so that chemical fixation is realized. The fly ash treating agent has extremely high chlorine poisoning resistance and heavy metal poisoning resistance, is long in service life, and provides effective technical support for harmless and resourceful treatment of fly ash.

The application discloses an anti-chlorine mesoporous CoSnO x / T-5 material, a preparation method and application, comprising the following steps: first, etching HZSM-5 by using tetrapropylammonium hydroxide to form a mesoporous material and as a carrier T-5; loading CoSn precursors on the carrier T-5; in air, converting the CoSn precursors into CoSn oxides by a calcination method to prepare a CoSnOx / T-5 material for catalytic combustion of 1,2-dichloroethane. x / HZSM-5, Co3O4 / T-5, SnO2 / T-5, CoSnO x The catalytic activity and anti-chlorine property of the CoSnO x / T-5 catalyst for catalytic combustion of 1,2-dichloroethane are greatly improved. Meanwhile, the CoSnO x / T-5 catalyst prepared by the application has good dispersity, the mesoporous structure promotes effective contact of 1,2-dichloroethane with the catalyst and accelerates adsorption of the reactants.

The present invention discloses a polyamide reverse osmosis membrane with a high retention rate and a preparation method thereof, and relates to the field of membrane separation technology. By selecting a polyethersulfone ultrafiltration base membrane as a support layer, the basic characteristics of high mechanical strength and chemical resistance are guaranteed. By pre-treatment with sodium dodecyl sulfate solution, N,N,N-trimethyl chitosan and sodium deoxycholate, its hydrophilicity is enhanced, providing active sites for interfacial polymerization to form polyamide. By adding a surfactant to the aqueous phase solution, the diffusion rate of amine monomers in the interfacial polymerization reaction is accelerated. Modified silica is added to the oil phase solution to form a stable organosilicon graft layer on the surface of nano-silica. Tertiary butylhydroquinone is grafted on the surface of the nano-silica to reduce the attack of chlorine on the polyamide chain and improve its chlorine resistance. By regulating the surface charge of the base membrane, activating the interface, and introducing anti-chlorine groups, the retention rate of the polyamide reverse osmosis membrane for salt inorganic substances is improved.

This invention provides a carbonate-doped, highly active electrocatalyst for the complete hydrolysis of seawater, its preparation method, and its application. The preparation method includes the following steps: placing a pretreated nickel foam (NF) current collector in a cobalt source aqueous solution for a hydrothermal reaction; after the reaction, cooling, washing, and drying to obtain a Co3O4 / NF precursor composite material; placing the obtained Co3O4 / NF precursor composite material in a mixed solution containing a cobalt source, a molybdenum source, urea, and sodium citrate for a hydrothermal reaction; after the reaction, cooling, washing, and drying to obtain the final product. This invention uses three-dimensional metallic nickel foam as the current collector and prepares a stable electrocatalyst for the complete hydrolysis of seawater with both high activity and chlorine corrosion resistance through a two-step mild hydrothermal reaction. The prepared composite catalyst can drive the complete hydrolysis of seawater for a long period of stable operation at a relatively low potential.

The invention discloses an anti-chlorine polyolefin pipe and a preparation method thereof, and belongs to the technical field of polymer pipes. The chlorine-resistant polyolefin pipe comprises an inner layer and an outer layer, wherein the inner layer comprises the following components in parts by mass: 92-97 parts of first PP-R resin and 3-8 parts of an anti-chlorine agent; according to the anti-chlorine polyolefin pipe provided by the invention, the anti-chlorine agent is introduced into the inner layer, and the anti-chlorine agent is prepared by compounding molybdenum disulfide, aminoethanethiol, dicyclohexylcarbodiimide and the antioxidant, so that the antioxidant in the inner layer can be effectively prevented from being migrated into tap water, and the inner layer of the pipe can continuously release the antioxidant; the released antioxidant plays a role in blocking and protecting the inner layer of the pipe, so that the polyolefin pipe provided by the invention has better chlorine resistance, and a pipeline system of the polyolefin pipe can stably operate under the actual working condition of chlorine-containing tap water.

The application discloses a preparation method of an electrolytic seawater chlorine corrosion resistant heterogeneous catalytic anode electrode, and relates to the technical field of advanced nanomaterials. A nickel-iron nanosheet structure is constructed in situ on the surface of metal foam through a hydrothermal method, and the surface is modified with organic molecules to obtain a nickel-iron nanosheet array catalyst with a porous carbon heterogeneous structure. The nanosheet structure and the porous carbon are beneficial to the rapid diffusion of oxygen and electrolyte, and a large number of active sites are exposed, which is beneficial to improving the catalytic efficiency. During the oxygen evolution reaction, the surface porous carbon containing amino groups forms a coordination bond with the metal surface to construct a stable adsorption layer, blocks the direct contact of chlorine ions with the metal surface, and effectively inhibits chlorine corrosion. In an alkaline simulated seawater containing 1M KOH and 0.5M NaCl, a current density of 500mA / cm 2 2 and a stability of 200 hours are reached at a lower overpotential (HER: 360mV). The preparation process is simple, and the application has important value in the practical application of electrolytic seawater hydrogen production in the future.

The invention discloses a preparation process of a chloride ion erosion resistant solid waste-based marine concrete material. The preparation process comprises the following steps: (1) uniformly mixing multi-walled carbon nanotubes with a Fe < 2 + > and / or Fe < 3 + > solution, and standing; and separating out the carbon nanotubes, drying, adding a NaBH4 solution, and standing to obtain the Fe-coated MWCNT. And (2) uniformly mixing the Fe-coated MWCNT with a ferric acetate solution, standing, separating out solids, adding the solids into alkali liquor, heating and preserving heat to obtain the Fe-Fe (OH) 2-coated MWCNT. And (3) adding the Fe-Fe (OH) 2 (at) MWCNT into an N, N, N-trimethylglycine solution, adding Fe < 2 + > and / or Fe < 3 + >, and standing to obtain the chlorine corrosion resistant agent. And (4) preparing the concrete material by taking the granulated blast furnace slag powder, sulfate, an alkaline activator, a chlorine erosion resistant agent and the like as raw materials. The chlorine corrosion resisting agent formed based on the carbon nano tubes is adopted, so that the chlorine ion corrosion resisting capacity of the concrete is effectively improved.

The invention discloses an anti-chlorine and anti-UV silane crosslinked polyethylene pipeline and a preparation method thereof, and belongs to the technical field of plastic pipes. The components of the inner wall layer are optimized, the added chlorine-resistant master batch is obtained by compounding the modified filler and the high-molecular polymer supported amine compound, the amine compound can effectively react with free chlorine, and the hydrotalcite modified by the silane coupling agent can effectively react with free chlorine by reducing the chloride ion permeation route. Nano titanium dioxide plays a remarkable anti-chlorine effect through intercalation surface complexation in a chemical and physical combined mode, and specific high-molecular polymer supported amine compounds can effectively prevent functional components from migrating and separating out towards the interior of a pipeline under long-term washing of water flow, so that the durability of the anti-chlorine effect is improved. On the whole, through a sandwich structure with the chlorine resistance of the inner wall layer, the enhancement of the middle layer and the ultraviolet resistance and weather resistance of the outer wall layer, the application strength and remarkable UV resistance of the pipeline are guaranteed, and the safety of long-term use of the pipeline is guaranteed.