92results about How to "Strong redox" patented technology

A heterojunction composite material consisting of one-dimensional In2O3 hollow nanotube and two-dimensional ZnFe2O4 nanosheets and its application are disclosed. When using this material for catalytic reactions, the hollow cavity and two-dimensional nanosheets of hollow nanomaterials can not only reduce the migration distance to accelerate the electron-hole separation, but also provide a large surface area and rich active sites to promote pollution adsorption and surface catalysis. At the same time, multiple light scattering or reflection in the hollow cavity of the hollow nanomaterials can increase light absorption and utilization. In addition, the heterojunction photocatalyst constructed by growing two-dimensional semiconductor nanosheets on a tubular substrate can promote the effective separation of photogenerated electrons and photogenerated holes, thereby improving the catalytic efficiency. In terms of catalytic performance, In2O3 @ ZnFe2O4 shows effective degradation of tetracycline, and due to its ferromagnetism, it shows convenient and good separation effect and has good recycling performance.

The invention relates to a preparation method for a microbial organic soil bactericidal and insecticidal warming conditioning agent. Fermentation raw materials are domestic fungus cultivation residue substances, the fermentation raw materials are crushed and added with water, and thus the water content mass percent of the fermentation raw materials is 25-35%; decomposing inoculants are added at a mass ratio of1:1000, the mixture is mixed uniformly, the fermentation raw materials mixed with strains are added with tourmaline powder with a mass percent of 5%, rare earth negative ion powder with a mass percent of 2%, composite biological insecticides accounting for 1% of the finished product total mass and composite biological bactericides accounting for 1% of the finished product total mass, the mixture is mixed uniformly, then loose packing or granulation is carried out, drying is carried out and the water content is 10%; packaging is carried out, and a microbial organic soil bactericidal and insecticidal warming conditioning agent is prepared. The produced conditioning agent is advantageous in that the organic matter content is high, the ground temperature is raised, absorption of phosphor and potassium for crops can be raised, the conditioning agent has functions of preventing soil borne diseases, releasing phosphorus and potassium, fixing nitrogen and killing nematodes and green environmental protection is achieved.

The invention relates to a decoloring method for reclaiming styrene from pyrolysis gasoline, which mainly solves the problems of a large quantity of solid waste and complex technology caused by adoption of gumbrine for decolorization or high equipment requirement and complex flow caused by adoption of a nitric acid for decolorization. The decoloring method is as follows: coarse styrene enters into the middle of a refined styrene tower, and pure styrene vapor is obtained on the top of the tower; after the pure styrene vapor is condensed by a condenser, one part is extracted to prepare pure styrene the chrominance of which is less than or equal to 10 as calculated by the platinum-cobalt chrominance unit, and the other part of the pure styrene vapor enters into a return tank, mixed and dissolved with a decoloring agent, and enters into the top of the tower for reflux, and heavy constituents are obtained at the bottom of the tower, wherein the decoloring agent is selected from at least one of an organic acid or organic anhydride. The technical proposal well solves the problems, and the decoloring method can be used in industrial production for reclaiming the styrene from the pyrolysis gasoline.

The invention relates to a decoloring method for reclaiming styrene by means of extraction and rectification, which mainly solves the problems of a large quantity of solid waste and complex technology caused by adoption of gumbrine for decolorization or high equipment requirement and complex flow caused by adoption of a nitric acid for decolorization. The decoloring method comprises the following steps: a decoloring agent is added into a solvent and mixed and dissolved to obtain a material one; the material one and styrene-bearing raw oil enter into the upper part and the middle part of a rectification tower respectively; light constituents the boiling point of which is lower than that of the styrene are rectified on the top of the tower, and the chrominance of the light constituents is less than or equal to 100 as calculated by the platinum-cobalt chrominance unit; a mixture material two of the styrene and the solvent is obtained at the bottom of the tower, wherein the decoloring agent is selected from at least one of an organic acid or organic anhydride, and the solvent is selected from at least one among polar solvents the boiling point of which is more than 160 DEG C; the material two enters into the middle of a solvent reclaiming tower, coarse styrene the chrominance of which is less than or equal to 10 as calculated by the platinum-cobalt chrominance unit is rectified on the top of the tower, and a reclaimed solvent is obtained at the bottom of the tower; and the coarse styrene enters into the middle of a refined styrene tower, pure styrene the chrominance of which is less than or equal to 10 as calculated by the platinum-cobalt chrominance unit is rectified on the top of the tower, and heavy constituents the boiling point of which is higher than that of the styrene are obtained at the bottom of the tower. The technical proposal well solves the problems.

The invention relates to conductive polymer gel and discloses conductive polyaniline gel preparation methods and application of the same to a supercapacitor. A first preparation method includes the steps that an ammonium persulfate solution is added into an aniline and ATMP solution, a reaction is conducted in an ice-water bath so that aniline polymerization can be conducted completely, then washing, freezing and drying are conducted, and the conductive polyaniline gel is obtained; a second preparation method includes the steps that the aniline and ATMP solution is added to a spray head A of a 3D printer, the ammonium persulfate solution is added to a spray head B of the 3D printer, the spray head A and the spray head B conduct printing alternatively at the temperature of 0-4 DEG C, a reaction is conducted at the same point, and the conductive polyaniline gel is formed; the gel prepared through the two mentioned methods can be evenly arrange on processed carbon paper in a spin coating mode, and vacuum drying is conducted, and conductive polyaniline gel electrodes are obtained. By means of the conductive polyaniline gel preparation methods and application, introduction of non-conductive polymer is avoided, the conductivity is improved, the conductive polyaniline gel with more excellent performance is obtained, the conductive polyaniline gel is used as an electrode material, the polyaniline gel is directly arranged on a current collector in a coated mode, and the amount of inactive substances in the electrodes is reduced.

The invention discloses a preparation method of a Prussian-blue-nanocrystal-loaded graphene composite material, and an application thereof in supercapacitors. The novel composite material is applied in supercapacitors. Under a condition of 5A / g, the capacitance can reach 350 F / g. The composite material has good cyclic stability. After 1000 cycles of continuous charging and discharging, the capacity loss is only 2%. According to the invention, Prussian blue nanocrystal direct synthesis on graphene is realized in a solvent. Graphene has good conductivity, and assists in improving the conductivity of the composite material. The novel composite material also has the advantages such as simple preparation process and low production cost. The novel composite material has great advantage in the application to supercapacitor.

The invention relates to a catalyst, a preparation method thereof and a method for removing nitrogen oxide and belongs to the field of catalysts. The catalyst comprises a modified material obtained by using transition metal to dope and modify a composite material, wherein the composite material comprises titanium dioxide and graphene oxide which are composited, and the transition metal comprises one or more of Mn, Fe, V, Cu, Cr and Co. The catalyst is cheap, capable of greatly lowering the activity temperature of SCR reaction and suitable for industrial application.

The invention belongs to the technical field of preparation of conductive polymer hydrogels, and provides a polypyrrole hydrogel with controllable morphology and a preparation method thereof and application of the polypyrrole hydrogel to a supercapacitor. The deficiencies and defects existing in the preparation of traditional polymer hydrogels are solved. The prepared polypyrrole hydrogel has thecontrollable morphology and excellent electrical conductivity and flexibility. The polypyrrole hydrogel is obtained by pouring dispersion liquid containing a crosslinking agent and a strong oxidant into dispersion liquid containing a polymer pyrrole monomer by one-step in-situ crosslinking polymerization, wherein the crosslinking agent is 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin, namely, TCPP, and the strong oxidant is ammonium persulfate or ferric chloride; and the molar ratio of monomer pyrrole to the crosslinking agent TCPP is (40 to 1) to (320 to 1). The polypyrrole hydrogel with thecontrollable morphology is prepared, the polypyrrole hydrogel is applied to the supercapacitor to avoid the addition of a polymer binder and a conductive active agent, and excellent energy storage performance is exhibited.

A composite air filtering material for the indoor air conditioner is prepared from a non-woven polarized polypropene cloth as filtering layer and a composite oxide layer containing photocatalyst nanoparticles through needling. Said filtering layer is composed of a non-woven polarized polypropene cloth and the surface-treated magnetic nanoparticles attached to said non-woven cloth.

The invention provides a catalyst for flue gas denitrification. The catalyst is multi-component metal oxide comprising Fe2O3, CeO2, NiO and TiO2. The Fe2O3-CeO2-NiO / TiO2 multi-component metal oxide serving as an SCR (selective catalytic reduction) flue gas denitrification catalyst has the advantages of high resistance to H2O and SO2 poisoning, low denitrification cost and the like and also has higher thermal stability, wider temperature window and better low-temperature denitrification activity.

The invention discloses a novel carbon-based desulphurization catalyst and a preparation method thereof. The carbon-based desulphurization catalyst is prepared from following raw materials by weight: 1-30 parts of cerium-zirconium solid solution powder, 100 parts of coal powder and 40-60 parts of an adhesive. The cerium-zirconium solid solution comprises cerium, zirconium, and at least one selected from yttrium, lanthanum, iron, cobalt and nickel. The preparation method includes: adding the cerium-zirconium solid solution powder, the coal powder and the adhesive into a kneader, uniformly mixing, kneading, adding the mixture into an extrusion moulding machine and moulding, drying, charing at 400-600 DEG C, and activating at 800-1000 DEG C by utilization of at least one of water vapor, carbon dioxide and water gas as an activating agent to obtain the novel carbon-based desulphurization catalyst used for flue gas desulphurization. The novel carbon-based desulphurization catalyst has characteristics of high desulphurization capability, large sulfur capacity, no desulphurization capability reduction caused by active component loss, wide applicable flue gas temperature range, and the like.

The invention discloses a catalyst carrier material made of fluorinated and modified pseudo-boehmite and a preparation method. After the fluorinated and modified pseudo-boehmite is roasted for 3 hours at the temperature of 600 DEG C, fluorine and aluminium oxide are contained. By adoption of the preparation method, the fluorine can be dispersed on the surface of the aluminium oxide, and the prepared pseudo-boehmite is used for preparing the catalyst, so that the strength of the catalyst is high, the benefit to improving the activity of the catalyst is achieved and the oxidation-reduction performances are good.

The invention discloses a preparation method of a beta-FeOOH / g-C3N4 heterojunction photocatalytic material. The preparation method of the FeOOH / g-C3N4 heterojunction photocatalytic material comprisesthe following steps of: placing melamine into a box-type furnace for multiple repeated thermal polymerization reactions to obtain block-shaped g-C3N4; dispersing the block-shaped g-C3N4 in 5-20 ml ofethylene glycol, and performing ultrasonic treatment for 10-40 minutes to finally obtain ultrasonic-assisted liquid-phase stripped GCNS suspension; adding FeCl3 solution into the GCNS suspension, mixing, fully and uniformly stirring, carrying out a solvent thermal reaction, and finally performing centrifugal washing and drying to obtain a composite material of a one-dimensional beta-FeOOH nanorodand a two-dimensional g-C3N4 sheet; placing the dried composite material into a muffle furnace for heat treatment to finally obtain the beta-FeOOH / g-C3N4 heterojunction material. The preparation method is simple, mature, and low in cost, and the prepared material is good in material chemical stability, strong in pollutant degradation capability and high in catalytic efficiency.

The invention provides a preparation method of a poly (3,4-EDOT)hydrogel having good machinery performance and excellent electrochemical performance as well as an application of the hydrogel in a super capacitor. The preparation method comprises the following steps: under ice bath condition, a conductive polymer monomer 3,4-EDOT is added in a sodium alginate solution, the materials are uniformly stirred, an ammonium persulfate solution is added in a mixed solution, the materials are uniformly stirred and placed under environment at the temperature of 4 DEG C, and reacted for 24-48 h. The invention relates to a preparation method of an electrode of the poly (3,4-EDOT)hydrogel, which is characterized in that a stainless steel mesh is coated with the finally obtained mixed liquor, then the materials are placed under environment at the temperature of 4 DEG C, and then reacted for 24-48 h, dilute sulfuric acid, ethanol and distilled water are used in order for washing, and the material is dried to obtain the gel electrode. The method avoids addition of a high-molecular binder and a conductive activator, and increases the conductivity and cycle stability.

The invention provides an anion carpet. The anion carpet comprises a bottom layer, a fiber layer and a face layer, and is characterized in that the bottom layer, the fiber layer and the face layer are sequentially connected in a bonded mode, anion materials are added into one or more of the bottom layer, the fiber layer, a bonding layer and the face layer in a raw-material-component mode, and the anion materials are 1% to 5% mass of the bottom layer, the fiber layer and the face layer; the anion materials are prepared from 50-65 parts of cellulose, 15-25 parts of a film-forming agent, 5-15 parts of anion micro powder, 30-45 parts of polypropylene and 20-25 parts of polyurethane. According to the anion carpet, the anion materials are added into the bottom layer, the fiber bottom, the bonding layer and the face layer, a large quantity of anions can be released, toxins released by bacteria or funguses are decomposed and subjected to innocent treatment through the high activities and the high reduction-oxidation effects of the anions, and meanwhile the anions have the functions of deodorizing, resisting pollution, purifying air and the like.

The invention discloses a denitrification and dephosphorization treatment technology for municipal sewage. The technology comprises the following steps: firstly mixing and stirring after filtering domestic sewage, treating the sewage through an anaerobic reaction pool, an anoxic reaction pool and an aerobic reaction pool successively, entering a disinfecting pool for disinfecting and deodorizing after the sewage is treated to reach a standard, reflowing to the anoxic reaction pool for treating while the sewage does not reach the standard, discharging waste gases generated by the sewage treatment in the anaerobic reaction pool, the anoxic reaction pool and the aerobic reaction pool to the air after treated by an air purifying device, reducing air pollution, discharging the disinfected sewage after precipitating in a precipitating pool, performing dehydration treatment on sludge and feeding water to a mixing pool, and discharging the dehydrated sludge. The technology is low in cost, goodin water treatment effect, rapid in degradation speed, especially high in nitrogen and phosphorus element and organic matter removal rate in the sewage, safe and stable, and extensive in applicationrange, beneficial to promotion and popularization and capable of performing waste gas treatment, reducing secondary pollution and guaranteeing the effect of the sewage treatment.

The invention discloses a preparation method for a cobalt-modified porous charcoal catalyst for demercuration and belongs to the technical field of control on mercury discharge of coal-fired flue gas.The preparation method comprises the following steps: taking fir as a charcoal carrier and taking Co3O4 as an active ingredient; adopting a sol-gel method for paving a crystal seed layer of crystal;performing hydro-thermal treatment for realizing growth of Co3O4 nanocrystal; performing carbonizing treatment, thereby acquiring a supported catalyst with high-dispersion active ingredients. According to the invention, source of raw materials is extensive, process is simple and controllable, operation conditions are mild and the demercuration efficiency of the acquired Co-modified porous charcoalcatalyst under different temperatures is above 80%.

The invention discloses an efficient denitration catalyst and a preparation method thereof. A hydrothermal method and a sol impregnation method are adopted for combined treatment; an Sn-containing MCM-48 molecular sieve in a skeleton serves as a carrier; the Sn-containing MCM-48 molecular sieve is subjected to SO4<2-> and PO4<3-> modification by a mixed solution which is obtained by mixing deionized water, sulfuric acid with the mass concentration of 98 percent and phosphoric acid with the mass concentration of 85 percent by weight, thereby obtaining the novel denitration catalyst taking Fe asan active component. The denitration catalyst prepared with the preparation method has relatively high specific surface area, and can have high catalytic activity and SO2 poisoning resistance withinthe range of 200 to 450 DEG C.

The invention discloses a ZnNiO / C composite nano material. The microstructure of the nano material is of a honeycomb structure. The scale of the honeycomb structure is 2.5-3.5 [mu]m, and the honeycomb structure is formed by granular nano-structures and lamellar structures arranged in a staggered manner, so a porous structure containing a large number of pores is formed. The invention also discloses a preparation method of the ZnNiO / C composite nano material. The method comprises the following steps: taking ZnCl2 and NiCl2 as metal sources of organic metal frame compounds, and taking glycolic acid as an organic ligand of an MOF material; synthesizing an MOF material containing nickel and zinc elements; and carbonizing in a quartz tube type furnace to obtain the ZnNiO / C composite nano material. The material is used as a lithium ion battery electrode material, shows a high specific capacity of 30mAh / g after 500 times of circulation at a discharge current of 600mA / g, and has good cycling stability.

The invention provides a cerium-based catalyst based method for reducing emission and denitrifying and removing dioxin of sintering smoke, and belongs to the technical field of treatment of sinteringsmoke. The method is characterized in that smoke flows through an emission reducing device in which a cerium-based catalyst is loaded; NH3 and air are blown into the emission reducing device; the cerium-based catalyst comprises Ce, Mn and Fe; the molar ratio of Ce to Mn is 0.25-1; Fe is an additive; the molar ratio of Fe to Mn is 0.25-0.5; the specific surface area of the catalyst is 80-90m<-2>g;the pore volume of the catalyst is 0.16-0.20cm<-3>g; the pore diameter of the catalyst is 5.0-6.0nm. According to the method, pollutants of the sintering smoke are subjected to emission reduction through the cerium-based catalyst, so that the dioxin and nitric oxide removing efficiency is improved; and the emission of the dioxin and the nitric oxide in the smoke can be reduced.

The invention discloses a preparation method for a porous boron-doped diamond composite electrode with a bimetallic synergistic effect and application of the porous boron-doped diamond composite electrode in detection of glucose, relates to a preparation method and application for the porous boron-doped diamond composite electrode and aims at solving the problems that the method of preparing the porous boron-doped diamond composite electrode does not exist at present, and the glucose detection sensitivity by utilizing a boron-doped diamond electrode nonenzymatic glucose sensor is relatively low at present. The preparation method comprises the following steps of 1, preparation of a boron-doped diamond film; and 2, sputtering coating and annealing treatment. The application is used for detecting glucose. The invention is used for preparing the porous boron-doped diamond composite electrode with the double-metal synergistic effect and the application of the porous boron-doped diamond composite electrode in detection of the glucose.

The invention discloses a preparation method of a bacteriostatic reflecting fabric of a traffic uniform. The method comprises the steps that (1), a fiber fabric which contains antibacterial fibers issoaked in the aqueous solution of a bacteriostatic agent, and moisture is removed in multiple steps; (2), reflecting resin, aluminum-silver powder, butyl acetate and a curing agent are uniformly stirred and mixed to coat the bacteriostatic fabric prepared in step (1); (3), glass micro beads are preprocessed, added to the aqueous solution of sodium dodecyl sulfonate, stirred in a water bath, cooled, filtered and washed for three times by sequentially adopting distilled water and absolute alcohol, and membrane coated glass micro beads are prepared after vacuum drying; (4), the membrane coated glass micro beads are planted to a PE / PET composite membrane to be compounded to a coating fabric prepared in step (2), and a washable bacteriorstatic reflecting fabric is obtained. The prepared fabrichas better bacteriostatic and reflecting performance, the bacteriostatic rate and reflection rate are not influenced basically after the fabric is washed for multiple times.

The invention belongs to the technical field of catalysts, and particularly relates to a second main group element modified cobalt-aluminum catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) dissolving a cobalt salt, a second main group element salt and an aluminum salt, and uniformly mixing to obtain a turbid liquid; (2) crystallizing the turbid liquid to obtain second main group element modified cobalt-aluminum hydrotalcite; and (3) calcining the obtained second main group element modified cobalt-aluminum hydrotalcite to obtain the catalyst. The cobalt-aluminum hydrotalcite modified by the second main group element is used as the precursor, so that the defects of trichloromethane, carbon tetrachloride and the like generated when the cobalt-aluminum hydrotalcite derived composite oxide is used for catalytic combustion of dichloromethane can be effectively controlled, the catalytic activity and stability on catalytic combustion of dichloromethane are very high, the initiation temperature is low, and the catalytic efficiency is high. The full conversion temperature is low.

The invention discloses a method for advancedly removing molybdenum from a manganese sulfate solution. The method for advancedly removing the molybdenum from the manganese sulfate solution is carriedout according to the following steps of after a pH value of the manganese sulfate solution is adjusted, adding a molybdenum removal agent into the solution, and conducting stirring and filtering to obtain filter liquor, namely a purified manganese sulfate solution; and therefore, the requirement of purifying the manganese sulfate solution can be met, and in the molybdenum removal process, the solution does not need to be heated. The method for advancedly removing the molybdenum from the manganese sulfate solution has the advantages that the procedures are simple, the cost is low, the efficiency is high, no pollution is generated, the defects of existing methods are overcome, and the requirements of the molybdenum content of manganese sulfate for producing a high-purity manganese-bearing material are met.

The invention relates to a manganese ferrite @ carbon nitride composite material and a preparation method and application thereof. The preparation method specifically comprises the following steps that S1, a pretreated carbon precursor and ammonia water are subjected to a hydrothermal reaction, then cooling, washing, centrifuging and drying the mixture to obtain C3N4; and S2, mixing an aqueous solution of manganese nitrate, ferric nitrate, ammonium fluoride and urea with the C3N4 prepared in the step S1, then carrying out hydrothermal reaction, and then cooling, washing, centrifuging and drying the mixture to obtain the manganese ferrite @ carbon nitride composite material. The prepared manganese ferrite @ carbon nitride composite material can be used as an electrode material of a supercapacitor. Compared with the prior art, the electrode material prepared by the invention has high specific capacitance and excellent oxidation-reduction capability, can be directly used as an electrode material of a supercapacitor, and is simple in preparation method and nontoxic and harmless in raw materials.

The invention provides a preparation method of a non-noble metal modified manganese oxide molecular sieve catalyst for catalytic combustion of toluene. The steps include: adding a KMnO4 solution dropwise into a mixed solution of MnSO4.H2O and HNO3, carrying out stirring reflux reaction, then performing mixing with Ce(NO3)2.6H2O, and conducting drying and calcination, thus obtaining the Ce modifiedmanganese oxide molecular sieve catalyst. Compared with noble metal catalysts, the Ce modified manganese oxide molecular sieve catalyst provided by the invention can effectively reduce the preparation cost, lower the temperature of toluene combustion reaction and achieve the purpose of energy saving, and has simple preparation process, thus having good application prospects.

The invention discloses a device for preparing a cerium-based catalyst and belongs to the technical field of sintering flue gas treatment. The device provided by the invention comprises a reaction chamber and an oxalic acid pool, wherein the oxalic acid pool is arranged in an upper part of the reaction chamber; an oxalic acid dropper is arranged below the oxalic acid pool; the oxalic acid dropperis used for dropping an oxalic acid solution into the reaction chamber; heating and insulating components are arranged outside the oxalic acid pool and the oxalic acid dropper; the heating and insulating components are used for heating and insulating the oxalic acid pool and the oxalic acid dropper; an ice-water bath pool is arranged outside the reaction chamber; the ice-water bath pool is used for water-bath cooling of the reaction chamber. The device provided by the invention ensures stability and performance of products, and also ensures that the dropped oxalic acid solution can be uniformly and rapidly mixed with a reaction solution; the prepared cerium-based catalyst improves removal efficiency of dioxin and nitrogen oxides.

The invention provides a Mn-loaded TiO2-doped activated carbon fiber air purifier filtering net, which comprises the following materials in parts by weight: 8-10 parts of bentonite, 5-8 parts of Mn-doped TiO2, 20-22 parts of activated carbon powder, 0.5-1 parts of nano-silver, 15-20 parts of epoxy resin crosslinker, and 60-75 parts of activated carbon fiber. In the filtering net disclosed by the invention, Mn is doped into titanium oxide to improve photon utilization rate during reaction, Mn-doped TiO2 and other material are together loaded on activated carbon fiber, and the adsorptive action of the porous structure of the activated carbon fiber is utilized to enhance the air purification effect.

The invention discloses a metal enclosing guard plate characterized by environmental protection, hygiene, convenient cleaning, attractive appearance, durability, and air purification and self-cleaning functions. The metal enclosing guard plate comprises a metal base plate (90), wherein the surface of the metal base plate (90) is attached with an inorganic matter isolation layer (91), and the surface of the inorganic matter isolation layer (91) is attached with a titanium oxide film layer (92). The metal enclosing guard plate can be extensively applied in the field of building materials.