206results about How to "Rich in channels" patented technology

The invention relates to a smart express item storing and taking method and system. The method includes that S1 an expression mobile terminal records express item information of an express item to be stored and transmitting the express item information to a server; S2 the server matches a smart cabinet according to the received express item information; S3 the server remotely controls the smart cabinet to open a cabinet door after successful matching and transmits an arrival notice to the client mobile terminal after the express item to be stored is placed into the smart cabinet; S4 when a client transmits an express item taking request through the client mobile terminal, the server verifies the express item taking request transmitted by the client mobile terminal; S5 the server remotely controls the smart cabinet to open the cabinet door after successful verification, and a client takes the express item. By means of the method and system, wireless storage of the express items by a courier and wireless taking of the express items by the client can be achieved, the complex express item storing and taking process is simplified, the structure of the smart cabinet is simplified, and the smart cabinet is economical and less in power consumption.

The invention discloses a WeChat marketing service platform. A management module is used for businesses using WeChat marketing service platform accounts to add WeChat official accounts and modify password setting, view background operation settlement and platform announcement, and carry out renewal management and SMS top-up on WeChat marketing service platform accounts. A basic setting module is used for setting the basic content of WeChat official accounts. A WeChat mall module is used for providing a systematic mall system for online transaction of WeChat official accounts. A micro official website module is used for businesses to set a micro official website style according to a template provided by the WeChat marketing service platform or a custom template. A micro activity module is used for businesses to set marketing activities to attract more fans. The WeChat marketing service platform is a service platform which can be understood and used by users easily and allows users to carry out marketing easily. The platform can realize precision marketing, help enterprises to establish a brand quickly, enable enterprises to better face the consumers and market in tens of millions of marketing tides and reduce labor cost, and maximize the effectiveness of WeChat.

The invention relates to a public service management system based on government cloud. The public service management system comprises a three-tier service framework and a public service integrated management system. The three-tier service framework successively comprises a presentation layer, a business logic layer and a data access layer from top to bottom. The presentation layer comprises a web system, a mobile phone APP and a self-service terminal. The business logic layer comprises a village and town basic information system, a social conflict resolution system, a grassroots party building system, a convenience service system and a government service system. The data access layer provides basic data and a data structure for data collecting, settling and analyzing, and provides the data support service for the business logic layer. The public service integrated management system comprises user right management, service guide management, payment management, reservation information management, process management, early warning management, information release management and service access management. The public service integrated management system provides effective management means and functions for normal operation of the system and normal processing of businesses.

The invention provides a heavy metal-contaminated soil remediation agent. The remediation agent is prepared from, by weight, 30%-45% of quick lime, 10%-25% of biomass charcoal, 10%-15% of kieselguhr, 10%-15% of sodium bentonite, 10%-15% of activated aluminum oxide, 5%-10% of nitrilotriacetic acid, 1%-5% of sodium lignin sulfonate and 1%-5% of sodium dodecyl sulfate. A preparation method comprises the steps that the quick lime, the biomass charcoal, the kieselguhr, the sodium bentonite, activated aluminum oxide, nitrilotriacetic acid, sodium lignin sulfonate and sodium dodecyl sulfate are stirred and mixed to be uniform according to the weight ratio, and then the soil remediation agent is prepared. The prepared soil remediation agent has the good effect when cadmium-lead-zinc-mercury compound contaminated soil is remedied.

The invention discloses a method for preparing monodisperse carbon microspheres by using cane sugar as a carbon source. According to the method, cane sugar is used as the silicon source, sodium polyacrylate is used as a dispersing agent, and after the hydrothermal reaction at the certain temperature, the monodisperse micron-sized carbon sphere is obtained. A one-step hydrothermal method is adopted in the method for preparing the monodisperse carbon microspheres, and sodium polyacrylate is used as a dispersing agent, and has an important effect on the particle diameter, the dispersity and the surface appearance of the carbon microspheres; the carbon microspheres are solid and have relatively rough surfaces, and can obtain lots of aperture passages through simple high temperature processing; the obtained carbon sphere particle diameter range is 1-6 microns, and the carbon sphere particle diameter can be adjusted controllably through experimental parameters such as cane sugar concentration, the reaction temperature and the reaction time; the obtained carbon sphere can be applied to the fields of liquid chromatograph stationary phases, super capacitors, protein separation, enrichment and removal of organic matter in water, and the like.

The invention discloses a production method of a cellulose-based hydrogel adsorber used for treating heavy metal wastewater. The production method of the cellulose-based hydrogel adsorber used for treating the heavy metal wastewater comprises the following steps of placing cotton yarn in cellulose dissolving liquid, and after stirring and dispersing are conducted, conducting freezing to obtain a cellulose solution; adding sodium hydroxide into a mixed solution of dimethyl sulfoxide, epoxy chloropropane and triethylene tetramine, and conducting stirring to obtain a modifying solution; adding a polyvinyl alcohol solution into the cellulose solution, mixing the polyvinyl alcohol solution and the cellulose solution evenly, sequentially adding ammonium persulfate, an acrylic acid monomer and N,N'-Methylenebis(2-propenamide), and conducting stirring and polymerization to obtain a gelatinous polymer; and placing the gelatinous polymer into the modifying solution, conducting soaking, carrying out a heating reaction, and washing a product, which is obtained after the reaction is completed, with alcohol and water repeatedly to obtain the cellulose-based hydrogel adsorber used for treating the heavy metal wastewater. According to the production method of the cellulose-based hydrogel adsorber used for treating the heavy metal wastewater, a large number of amino groups are introduced to the surface of the cellulose-based hydrogel adsorber which is produced by means of cellulose in the waste cotton yarn so that heavy metal ions in the heavy metal wastewater can be efficiently and fast removed, and double purposes of using waste for treating waste are achieved.

The invention provides a cadmium-contaminated soil remediation agent, which consists of the following components by weight ratio: 30-50% of biomass charcoal, 10-20% of iron powder, 10-20% of plant ash, 10-20% of sodium sulfide, Zeolite 10‑20%; the above components fully exert synergistic effects, and through reduction, precipitation, adsorption, improvement, and adjustment of PH value, the effective cadmium in the soil is greatly reduced, and the prepared soil remediation agent can be used to repair cadmium-contaminated soil. With good effect, the restoration agent of the present invention has the advantages of simple preparation method, feasibility and good treatment effect.

The invention relates to a porous composite material for purifying formaldehyde and TVOCs and a preparation method of the porous composite material, and belongs to the field of air purification materials. The porous composite material for purifying formaldehyde and TVOCs is characterized by comprising a core-shell structure, wherein the core-shell structure consists of a core material with a porous carbon material, and a shell material containing a catalytic component; pore channels for air circulation are formed in both the core material and the shell material. By adopting the porous composite material provided by the invention, a material formation process can be simple and easy to operate, the purification capacity for formaldehyde can be up to 6.05mg / g, and the purification capacity for methylbenzene can be as high as 299.41mg / g.

The invention provides a sea-urchin-shaped hiberarchy cobaltosic oxide nanosphere and a preparing method thereof. The preparing method comprises the following steps of: mixing cobalt dichloride water solution with glycerol, adding urea into the mixture, reacting, removing impurities, burning, and obtaining the sea-urchin-shaped hiberarchy cobaltosic oxide nanosphere. According to the sea-urchin-shaped hiberarchy cobaltosic oxide nanosphere prepared by the method, the horsehide-shaped hiberarchy has abundant gaps, a large amount of pore ways of which the inner parts are communicated and a larger specific surface area, thus a lot of novel physicochemical characteristics which are generated in a coupling way can be owned, and the sea-urchin-shaped hiberarchy cobaltosic oxide nanosphere can be widely applied to the fields of electrochemistry, catalysis, biosensing, air-sensitive and magnetic materials.

The invention provides a heavy metal contaminated soil remediation agent. The heavy metal contaminated soil remediation agent is prepared from the following raw materials in parts by mass: 50-65 parts of modified biomass charcoal, 20-30 parts of organic matters, 6-15 parts of composite microbial agents, 5-10 parts of polyacrylamide, 12-20 parts of organic fertilizer and 6-12 parts of iron powder, wherein the modified biomass charcoal is obtained by mixing and modifying the biomass charcoal and sodium sulfide, and the organic matters are obtained by mixing humic acid, potassium humate and fulvic acid potassium according a mass ratio of (2 to 4):(6 to 8):3. The invention also provides a preparation method of the heavy metal contaminated soil remediation agent. According to the heavy metal contaminated soil remediation agent provided by the invention, the preparation process is simple; the conditions are mild; the removal rate of heavy metal in soil after remediation is high; the soil remediation effect is good; the heavy metal contaminated soil remediation agent has relatively high practical significance.

The invention provides a heavy metal pollution soil restoration agent which is composed of the following components in percentage by weight: 30-45% of biomass charcoal, 10-25% of alpha-cyclodextrin, 10-15% of glucose, 10-15% of iron powder, 10-15% of ferrous sulfate, 5-10% of polyacrylamide, 1-5% of sodium sulfide and 1-5% of thiocarbamide. The soil restoration agent has favorable effects on restoring cadmium / lead / zinc / mercury combined pollution soil. The restoration agent has the advantages of simple and feasible preparation and favorable treatment effect.

The invention provides a soil remediation agent. The soil remediation agent is composed of, by weight, 10-25% of hydroxyl calcium phosphate, 30-45% of biomass charcoal, 10-15% of sodium sulfide, 10-15% of sodium bentonite and 10-15% of ammonium phosphate. The soil remediation agent is effective in remediation of soil contaminated by cadmium, lead, zinc, arsenic, copper and mercury.

The invention relates to a preparation method of a microporous carbon material. The method comprises the steps of; weighing a phenolic compound,a formaldehyde solution, water and sodium carbonate in a weight ratio of 1:4-7.5:60-90:0.01-0.015, mixing, reacting at 85 DEG C for 45-120 min, and then cooling to room temperature to obtain a phenolic prepolymer solution; then weighing polyhydroxy acid, zinc chloride, hydrochloric acid and water in a weight ratio of 1:0.4-3:5-7.5:15-25, and mixing to obtain a mixed solution; weighing the mixed solution and the phenolic prepolymer solution in a weight ratio of 1:2-6, adding the mixed solution into the phenolic prepolymer solution, mixing evenly, conducting a polymerization reaction at 85 DEG C for 2-4 days, cooling to room temperature after the reaction, washing the products with a solvent with low surface tension for 2-5 times, and then drying at 40-100 DEG C for 2-24 h to obtain solid blocks; heating the solid blocks to 900-1000 DEG C for carbonization, with heating rate of 0.5-10 DEG C / min in a tube furnace under protection of inert gas; and finally naturally cooling to a room temperature to obtain the microporous carbon material. According to tests, the obtained microporous carbon material has regular microporous structure and specific surface area higher than 1000m<2> / g.

The invention discloses a preparation method for a novel nano-silver wire. The preparation method comprises the following steps: taking a sliver salt or silver amide complex, adding a solvent for dissolving to obtain liquor A; taking organic substances, adding the solvent for dissolving to obtain liquor B; mixing the liquor A with the liquor B, stirring until dissolving completely; adding a complexing agent, uniformly stirring, stewing and layering to obtain liquor C; taking the liquor C as an electrolyte, inserting an anode to a water layer of the electrolyte, inserting a cathode to an oil layer of the electrolyte, carrying out electrolytic reaction for 1-30 minutes under the condition that voltage is 1-50V; flushing the reacted cathode polar plate by distilled water, naturally drying at the room temperature to obtain the nano-silver wire. The thickness and slenderness ratio of the nano-silver wire can be conveniently controlled by electric fields, so that the controllable growth of a nano structure is realized; morphology of the generated nano-sliver wire is controllable by regulating the current density, voltage and reaction time, and the novel nano-silver wire can be synthesized by a nano-silver wire with the diameter of 1-50nm and a nano rod. The preparation process is simple and low in cost, and efficiency for synthesizing the nano-sliver wire and the nano rod is higher.

The invention relates to a method for high-yield plantation of Salicornia and soil fertility improvement of coastal mud flat, which comprises the following steps: leveling mud flat salinized soil, furrowing and ditching; applying organic fertilizer into the mud flat salinized soil to fertilize soil; after applying the organic fertilizer into soil, sowing and earthing, which comprises mixing Salicornia seeds with fine sand and uniformly sowing the seeds into ditches; before emergence of seedlings of Salicornia, adopting seawater for irrigation, keeping the soil to be moist, and adopting seawater for irrigation within three weeks after the emergence of seedlings; after the three weeks after the emergence of seedlings, applying urea as topdressing, and applying fertilizer for three times during a growth period; and after applying fertilizer, immediately adopting fresh water for irrigation, after applying fertilizer during the growth period, adopting the fresh water for irrigation for three times, adopting the seawater for irrigation during other periods, and maintaining the soil to be moist. The method has the advantages that the yield of vegetables in salinized soil can be increased, and the nutrition quality is improved; the soil fertility cultivation of saline-alkali soil can be sped up, and the water sources can be saved; the raw materials has wide sources, and are easy to obtain; the development of coastal mud flat planting can be improved, the ecological environment can be improved, and the economical benefit can be increased; and the popularization prospect is wide.

Embodiments of the invention disclose a method and a system for opening international roaming service in an overseas heterogeneous network. The method comprises the steps that: a message interception system intercepts an authentication failure message returned to a roaming destination MSC / VLR by an HLR in the heterogeneous network and forwards the authentication failure message to an international roaming service system; the international roaming service system requests a client resource management system to query whether the user has the opening qualification of international roaming service; if the user has the opening qualification of international roaming service, the client resource management system writes user authentication data of the user in the HLR; the roaming destination MSC / VLR initiates an authentication process of the user to the HLR again; after the authentication of the user is passed, the roaming destination MSC / VLR initiates a position registration request message to the HLR; a signaling interception system intercepts a position registration failure message returned by the HLR to the roaming destination MSC / VLR and forwards the position registration failure message to the international roaming service system; and the international roaming service system requests the client resource management system to open the international roaming service for the user. The method and the system disclosed by the embodiments of the invention can be used for opening the international roaming service of the user in the overseas heterogeneous network by self-help service.

The invention belongs to the technical field of preparation of aviation kerosene, and particularly relates to a preparation method of a hydrodeoxidation isocatalyst, a hydrodeoxidation isocatalyst and application thereof. Carbon nanotubes are modified by nickel phthalocyanine so as to introduce Ni and N elements into the carbon nanotubes, iron phthalocyanine is added to cooperate with the nickel phthalocyanine, and the modified carbon nanotubes are added into a SAPO-11 synthetic gel in the form of a gel component, so that the synthesized SAPO-11 has more abundant pores and higher acid strength; and by introducing the Ni, Fe and N, the synthesized molecular sieve has the hydrodeoxidation activity, so that the synthesized NiFeCNTSAPO-11 can be directly used as a biological aviation kerosene catalyst for hydrogenating vegetable oil, thereby omitting the step of impregnating active components into the support and simplifying the preparation procedure. Besides, the hydrodeoxidation isocatalyst has high catalytic efficiency and high biological aviation kerosene yield (up to 78-85%).

The invention discloses a soil remediation agent and a restoration stabilizing remediation method for hexavalent-chromium-contaminated soil. The soil remediation agent is composed of the following rawmaterials of, by mass, 35%-45% of calcium polysulfide, 15%-25% of biomass charcoal and 35-45% of ferrous sulfate, wherein the sum of the mass percentages of the raw materials is 100%. The restorationstabilizing remediation method for the hexavalent-chromium-contaminated soil comprises the step that the soil remediation agent is added into the chromium-contaminated soil. According to the remediation agent, the biomass charcoal is obtained through vacuum pyrolysis of biomass, and the biomass charcoal prepared under the vacuum condition is high in porosity and adsorption value; rice straw biomass serves as a raw material, resources are fully utilized, and environmental pollution caused by burning of the rice straw biomass is avoided; and the biomass charcoal obtained through vacuum pyrolysis has the advantages of being large in specific surface area, rich in pore canal, liable to adsorb various heavy metal ions, and capable of reducing the concentration of the mobility heavy metal ionsin the soil.

The invention relates to an alkali treatment modification method for forming an alpha-alumina carrier of a silver catalyst used for producing ethylene oxide through ethylene oxidation. The method has the beneficial effect of increasing the pore canal of the carrier by treating the formed alpha-alumina carrier with an alkaline solution at a certain concentration under the heating and stirring conditions. The silver catalyst prepared from and supported by the alpha-alumina carrier prepared by the method is beneficial to diffusion of reaction products. The modified alpha-alumina carrier shows good selectivity when applied to the reaction process of producing ethylene oxide through ethylene oxidation.

The invention provides a heavy metal polluted soil remediation agent which is prepared from, by weight, 30-50% of biomass charcoal, 10-30% of alpha-cyclodextrins, 10-20% of zeolite, 5-10% of polyacrylamide, 5-10% of glucose and 5-10% of sodium sulphide. The preparation method comprises the steps that the biomass charcoal, the alpha-cyclodextrins, the zeolite, the polyacrylamide, the glucose and the sodium sulphide are evenly mixed according to the mass ratio, and therefore the soil remediation agent is prepared. The obtained soil remediation agent has the good effect on remedying cadmium, lead, zinc and copper composite polluted soil, and has the advantages that the method is simple and feasible, and the treatment effect is good.

The invention discloses a non-catalytic efficient preparation method of a two-dimensional fluorine-containing covalent organic framework compound. The method comprises dispersing monomer materials into organic solvent, and performing liquid nitrogen freezing-vacuumizing-degassing treatment, sealed ultrasonic treatment and temperature-controlled reaction to obtain a crude product; filtering, washing and drying the crude product to obtain the two-dimensional fluorine-containing covalent organic framework compound. The non-catalytic efficient preparation method of the two-dimensional fluorine-containing covalent organic framework compound saves catalysts and can produce products high in performance through 5-minute reaction; the prepared two-dimensional fluorine-containing covalent organic framework compound is high in specific surface area and has an orderly mesoporous structure containing a large number of fluorine atoms, thereby having a potential application prospect in aspects of gasadsorption and storage, ion adsorption and the like.

The invention provides a heavy metal cadmium and lead composite polluted soil restoration agent.The restoration agent is prepared from, by weight, 30-50% of biomass charcoal, 5-10% of kieselguhr, 20-30% of ferrous sulfate, 5-10% of starch and 10-20% of chitosan.According to the preparing method, the biomass charcoal, the kieselguhr, ferrous sulfate, the starch and chitosan are mixed according to the mass ratio, and stirred fully and uniformly to obtain the prepared soil restoration agent.The prepared soil restoration agent has a good effect when restoring cadmium and lead composite polluted soil.

The invention discloses a method for preparing a vanadium phosphorus oxide catalyst. The method comprises the following steps: (1) mixing ionic liquid I and vanadium pentoxide, adding the mixture intoan impinging stream reactor, a boiling-bed reactor or a high gravity reactor, raising the temperature and reacting; (2) introducing concentrated phosphoric acid into the reactor, reacting for 2-4 hours, introducing ionic liquid II for continuously reacting for 2-4 hours, filtering, drying and calcining to obtain a vanadium phosphorus oxide catalyst precursor, and activating and molding, thereby obtaining the catalyst. The vanadium phosphorus oxide catalyst prepared by the method disclosed by the invention has dual pore channel distribution, the ionic liquid serves as the solvent and reducingagent, and the usage amount of the solvent and reducing agent is effectively reduced; with the adoption of the impinging stream reactor, the reaction time is short, the mass transfer effect is excellent, the reaction efficiency is high, and the production cost is saved.

The invention discloses a preparation method for aromatic and bacteriostatic chitosan-based wound dressing. The preparation method comprises the following steps: mixing tea tree essential oil, menthol and folium artemisiae argyi essential oil according to a certain proportion to obtain a natural aromatic bacteriostatic agent; coating lipidosome with the natural aromatic bacteriostatic agent to obtain aromatic and bacteriostatic lipidosome; dispersing the aromatic and bacteriostatic lipidosome into a chitosan-sodium alginate-gelatin solution, and performing freeze drying according to certain process to obtain the aromatic and bacteriostatic chitosan-based wound dressing. The aromatic and bacteriostatic chitosan-based wound dressing is of a porous structure and efficient in bacteria capturing effect, lasting, broad-spectrum, efficient and antibacterial, good in slow release and antibacterial performance, hemostasis, water absorption and gas permeability and good in biocompatibility, has certain mint flavor, and has obvious curative effect in large wounds and burns.

A method for preparing dual-molecular-sieve-containing cracking catalyst by using in-situ crystallization is characterized by mixing 1 to 10 % by weight of a ZSM-5, 1 to 10 % of by weight of a Y molecular sieve, 1 to 15 % by weight of a binder and the balance being kaolin, pulping and atomizing to prepare microballoons with an average particle size of 50 to 80 microns; vacuum calcinating and dehydrating under 0.01 to 0.1 MPa and 150 to 500 DEG C for 0.5 to 4 hours, and calcinating under 500 to 900 DEG C for 1 to 10 hours, adding a sodium silicate solution with a solid / liquid ratio of 1 : 1-5; adjusting a pH value of the slurry to 12-14 with a sodium hydroxide solution; hydrothermally crystallizing 20 to 60 % by weight of a NaY molecular sieve with a silica-alumina ratio of 4.5 to 5.8 respectively under 50 to 100 DEG C for 0.5 to hours and under 80 to 130 DEG C for 15 to 40 hours; and hydrothermally exchanging for 1 to 3 times with a rare earth salt solution and an ammonium salt solution and calcinating under 400 to 750 DEG C for 1 to 4 hours for 1 to 2 times to prepare a catalyst with less than or equal to 1.0 % by weight of Na2O and 2 to 12 % by weight of rare earth oxide, wherein the catalyst contains the ZSM-5 molecular sieve and the Y molecular sieve, and has advantages of strong conversion capability of heavy oil, large liquid yield and high octane number of gasoline.

The invention discloses a preparation method for an N-doped nanometer hollow carbon sphere. The method comprises the following steps: firstly, mixing ammonium hydroxide of a certain volume concentration, absolute ethyl alcohol and deionized water; placing the mixed solution onto a magnetic stirrer for stirring; adding a certain volume of ethyl orthosilicate into the mixed solution, continuing to put onto the magnetic stirrer and fully stirring the solution, thereby acquiring the silicon dioxide sphere; preparing dopamine hydrochloride solid into a solution with a certain concentration, dropwise adding the solution into the mixed solution, putting onto the magnetic stirrer and stirring; using a high speed centrifuge for centrifugally separating and cleaning the solution after the ending ofsolution, and then putting the solid into a drying oven for drying; calcining the solid under a nitrogen environment under high temperature and putting into a hydrofluoric acid with a certain concentration for etching; lastly, washing and drying the etched solid, thereby acquiring the N-doped nanometer hollow carbon sphere. The preparation method is simple, high in operability and pollution-free;the material has the advantages of porosity, abundant ducts, large specific surface area, and the like; the N-doped nanometer hollow carbon sphere can be used as an electrode material in a supercapacitor and meanwhile can be used as an adsorbent for absorbing bisphenol A, so that the material is multifunctional.

The invention relates to the technical field of materials and discloses a preparation method of a porous fiber-based aerogel adsorbent. The method comprises the following steps: 1) placing cellulose in a cellulose dissolving liquid, dispersing and freezing until cellulose is completely dissolved, so as to obtain a cellulose solution; (2) adding APS into the cellulose solution to initiate free radical, stirring and initiating, adding acrylic acid, acrylamide and N,N-methylene bisacrylamide, stirring and polymerizing to obtain a gelatinous polymer; and (3) repeatedly washing the gelatinous polymer by using alcohol and water, and freeze-drying to obtain the porous fiber-based aerogel adsorbent. Through the molecular designing, a functional group is introduced into the cellulose molecules, andthrough process control, the cellulose-based absorbent material with high-efficiency adsorption property is obtained, and the dual-purpose of using wastes to treat wastes by combining recycling of cellulose-containing spinning waste resources and efficient and rapid removal of dyes in dyeing wastewater is achieved.

A related method for processing reverse-osmosis concentrated water through catalytic ozone oxidation: dipping peanut shell powder in a phosphoric acid solution with the concentration of 60% according to the solid-liquid ratio of 1:1-1:3, transferring the material solution to a crucible for activation, cooling, washing with a hydrochloric acid solution with the concentration of 1%, washing with deionized water to get a pH value of 7, putting in a baking oven, baking at 105 DEG C to obtain a constant weight, performing grinding or ball-milling crushing and screening; dipping peanut shell activated carbon in a transition metal ion solution with the mass concentration of 0.1-10% according to a solid-liquid ratio of 1:1-1:10, baking to dry, roasting and grinding; adding into an ozone oxidation sewage processing system containing the reverse-osmosis concentrated water, and controlling the ozone oxidation sewage processing temperature to be 5-35 DEG C; and after processing is finished, separating out the peanut-shell-active-carbon-supported metal ion catalyst for next time of the catalytic process. The catalyst employed in the method is abundant in channel, large in specific surface area and more in surface active group, and has relatively strong adsorption and catalytic effects on organic pollutants in sewage.

The invention discloses an ultrafast-response overcharge-prevention electrochromic device and a preparation method thereof. The ultrafast-response overcharge-prevention electrochromic device comprisesa first transparent electrode, an ionic conduction layer, an organic electrochromic layer, an inorganic electrochromic layer and a second transparent electrode which are arranged in a sequentially laminated way. The ultrafast-response overcharge-prevention electrochromic device has the following beneficial effects that (1) the ionic conduction layer has the great pore diameter and is provided with many pore passages and facilitates positive ion transmission, so that the response speed of the device is accelerated; (2) the cooperative action of a plurality of positive ions is realized in the electrochromic process of the electrochromic device, so that the device has very high regulation capability; (3) in the ultrafast-response overcharge-prevention electrochromic device, a resin layer perse has good insulation capability, so that the electricity leakage can be prevented without adding an electron blocking layer; and (4) the wetting performance of a solid-liquid interface is better than that of solid-solid interface contact, so that the steric hindrance between interfaces is reduced, and the very high coloring efficiency is realized.

The invention discloses a preparation method for a covalent triazine framework compound and MoS2 compound hydrogen evolution catalyst and application of the hydrogen evolution catalyst. According to the covalent triazine framework compound and MoS2 compound hydrogen evolution catalyst, anhydrous zinc chloride and terephthalonitrile are taken as raw materials, a covalent triazine framework compoundis obtained, then covalent triazine framework compound powder, ammonium carbonate and thiourea react, and finally, the covalent triazine framework compound and auxiliary MoS2 compound hydrogen evolution catalyst is obtained. The preparation method is simple in operation, convenient, low in cost and capable of being widely applied to an industrial electro-catalysis hydrogen evolution reaction andprovides convenience for large-scale preparation.