51 results about "Carbon.organic" patented technology

The invention discloses a green formic acid co-production method based on electro-catalysis synergistic conversion of carbon dioxide and carbon-containing small molecules, and belongs to the technical field of new energy conversion and carbon resource utilization. According to the method, a paired electro-catalysis system is constructed; an iron / cobalt bimetal organic framework catalyst is adopted as an anode, so that high-selectivity electro-oxidation of ethylene glycol is realized to generate formic acid; a bismuth-based metal organic framework catalyst is adopted as a cathode, efficient electroreduction of carbon dioxide is achieved, formic acid is also generated, and therefore a high-added-value product is co-produced in a single system in a synergetic mode. Compared with a traditional electrolyzed water system, the method has the advantages that carbon-containing small molecules are used for replacing high-energy-consumption oxygen evolution reaction (OER), the electrolysis energy consumption is remarkably reduced, and meanwhile, the Faraday efficiency and the product selectivity are improved. According to the technical path, capture and resource conversion of CO2 are achieved, high-value utilization of typical carbon-containing organic waste liquid is promoted, and a sustainable, economical and efficient solution is provided for renewable energy-driven green chemical industry, carbon neutralization and clean energy development.

The application discloses an ultrahigh-strength carbon sequestration cementing material and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing the carbon sequestration cementing material, amphiphilic hydrophilic block copolymer and water to obtain a mixture; and performing molding and carbonization curing on the mixture to obtain the ultrahigh-strength carbon sequestration cementing material. The application creatively uses the amphiphilic hydrophilic block copolymer as a carbonization enhancer of the carbon sequestration cementing material, greatly improves the mechanical property of the carbon sequestration cementing material, and the amphiphilic hydrophilic block copolymer can regulate the crystal form of carbonization products, combines with calcium ions to form a hydrogel with an ionic crosslinking network and filled in pores, can be used as a template for calcium carbonate crystallization to form a carbon organic-inorganic composite structure, makes calcium carbonate grains grow in an orientation manner, improves the combination between calcium carbonate crystals, and greatly improves the mechanical property of the material. The enhancement technology is simple in process and low in cost, widens the application range of the carbon sequestration cementing material, and has a good application prospect.

The application discloses a solid waste treatment system and method based on gasification slag smoldering and organic solid waste pyrolysis, and belongs to the technical field of solid waste treatment. The system comprises a first reaction furnace and a second reaction furnace. The feeding mechanism, smoke outlet, heating mechanism and gas supply mechanism of the two reaction furnaces are combined and arranged. The condensing mechanism, flow distribution valve and gas purification / mixing device work cooperatively, and heat is transferred between the two reaction furnaces. The smoldering treatment of gasification slag and the pyrolysis treatment of carbon-rich organic solid waste can be accurately completed. The solid waste treatment system has simple system composition and convenient control. The high-value recycling of gasification slag and carbon-rich organic solid waste can be realized without using a large amount of external auxiliary energy. Low-oxygen CO-rich gas and pyrolysis semi-coke can be quickly prepared. The recycling rate of the available energy in the gasification slag and carbon-rich organic solid waste is improved. The treatment cost of the gasification slag and carbon-rich organic solid waste is reduced. The system has good economic value and practical value.

The invention relates to the technical field of lithium batteries, in particular to a porous carbon negative electrode material and a preparation method thereof.The preparation method comprises the steps that a biomass raw material, a carbonaceous organic matter and an inorganic additive are selected as precursor materials; the preparation method comprises the following steps: uniformly mixing a biomass raw material and a carbon-containing organic matter according to a certain proportion, adding an inorganic additive, and then carrying out a stirring reaction at a first reaction temperature to form mixed gel; transferring the mixed gel into a first reaction container, heating to 600-900 DEG C under the protection of inert gas, carrying out carbonization reaction, and then manufacturing a pore structure by adopting a physical activation method or a chemical activation method; and washing and drying the carbonized product with the prepared pore structure to obtain the porous carbon negative electrode material. The problems of high raw material cost and difficult pore structure regulation and control are solved.

The present invention discloses a method for comprehensive recovery of fixed carbon and titanium resources in molten salt chloride slag, which adopts pre-screening-coarse grain grinding-flotation to pre-enrich organic carbon-organic coarse concentrate, then grinding and flotation to select organic carbon concentrate-floating carbon tailings to screen coarse particles as titanium concentrate 1-flotation to recover fine-grained titanium concentrate 2, and recover fixed carbon and titanium resources, thereby achieving the effect of significant enrichment of fixed carbon and TiO2 components; overcoming the defects of molten salt chloride slag currently being treated by stacking or landfilling, which will occupy a large amount of land resources and have environmental risks. This method enables fixed carbon to be used as fuel, and the titanium concentrate product is used alone, added to the titanium concentrate electric furnace smelting operation, or as a sulfuric acid process titanium dioxide raw material, thereby achieving high-value recovery of solid waste, with the advantages of relatively low process cost and easy industrialization, and can be widely used in the comprehensive utilization field of vanadium titanium magnetite high calcium magnesium titanium concentrate molten salt chloride slag, and has great practical value and promotion value.

The invention discloses a TiO2 (at) cMOF heterojunction photo-anode material as well as a preparation method and application of the TiO2 (at) cMOF heterojunction photo-anode material. The TiO2 nanorod array photo-anode material TiO2 (at) cMOF coated with a single-metal conductive metal organic framework (cMOF) and a double-metal conductive metal organic framework (cMOF) is prepared by adopting a solvothermal method, and the selectivity for synthesizing glyceraldehyde through photoelectrocatalytic oxidation of glycerol in a neutral medium is high; the photo-anode has a unique core-shell structure, the separation efficiency of photon-generated carriers is enhanced, further the photoelectrocatalytic activity of glycerin is remarkably improved, biomass oriented upgrading of converting glycerin into glyceraldehyde is achieved, meanwhile, the photoelectrocatalytic reaction condition is mild, the problem of C-C bond breakage in the oxidation process of multi-carbon organic matter can be effectively solved, and the photo-anode has a good application prospect. A new thought is provided for high-selectivity preparation of a multi-carbon product.

The application discloses a graphitized activated carbon supported ruthenium catalyst for synthesizing ammonia, which is prepared by the following steps: high-temperature heat treatment of activated carbon in an inert atmosphere, then reaming treatment in a mixed gas containing water vapor, obtaining graphitized activated carbon, then impregnation of a ruthenium precursor solution to introduce a ruthenium component, reduction, then introduction of a cerium compound in a solution, then introduction of carbon-containing organic matter, then impregnation of a barium salt solution, and reduction to obtain an ammonia synthesis catalyst with the graphitized activated carbon as a carrier, the ruthenium as an active component, and barium and cerium as additives. Compared with the graphitized carbon supported ruthenium catalyst prepared by the prior art, the catalyst prepared by the application has higher ammonia synthesis activity and has a good application prospect.

The present disclosure provides a sewage treatment method and an execution system, comprising: under the conditions of stirring and anaerobic, absorbing and releasing phosphate by anaerobic phosphorus release and internal carbon source conversion reaction in the first sewage, taking the carbon-containing organic matter in the first sewage as a carbon source, to obtain the second sewage; performing aerobic treatment on the second sewage, determining the relative activity of aerobic phosphorus accumulating bacteria and aerobic ammonia-oxidizing bacteria in the second sewage according to the pH value change trend of the second sewage; treating the second sewage by using a multi-stage aeration mode according to the relative activity, adjusting the dissolved oxygen concentration by adjusting the aeration mode of the multi-stage aeration, to occur integrated nitritation-anammox and aerobic phosphorus absorption reaction, to obtain the third sewage; under the conditions of stirring and anaerobic, performing deep phosphorus and nitrogen removal on the third sewage by anaerobic ammonia oxidation reaction, denitrification phosphorus removal reaction and internal carbon source denitrification reaction to obtain the fourth sewage; standing the fourth sewage to separate the sludge and water, and outputting the sewage obtained after the sludge and water separation.

The invention discloses a high-precision recovery marine facies compact limestone sedimentary environment and oil-gas dessert area prediction method. The method comprises the steps that S1, an argillaceous limestone phase, an argillaceous limestone phase, a mud-powder crystal limestone phase and a paste limestone phase are divided through X-ray diffraction and slice identification; s2, utilizing a chemical weathering index CIA, a Sr / Ca salinity index and delta 13Corg organic carbon isotope to synergistically recover paleo-climate and paleo-hydrological conditions; s3, combining total organic carbon TOC, organic matter maturity Ro, terrestrial input Al and Ti content and nanopore development degree, and establishing an organic matter-rich high-quality lithofacies evaluation standard; and S4, according to an evaluation standard, well drilling, well logging and seismic data are fused to predict the oil and gas sweet spot area. Through the four steps of lithofacies division, paleoenvironment recovery, evaluation standard establishment and dessert area prediction, high-precision recovery of the marine facies compact limestone sedimentary environment is realized, the dessert area prediction success rate is improved to 78%, and efficient technical support is provided for oil-gas exploration.

The invention discloses a process method for preparing green hydrogen by coupling biomass flameless pyrolysis gasification with steam reforming, and relates to the technical field of hydrogen energy preparation and organic solid waste recycling, and the process method comprises the following steps: in a high-frequency electromagnetic heating austenite alloy rotary kiln, carbon-containing organic matters are subjected to primary cracking by using a light quantum energy field excited by an alloy; combustible gas and solid carbon residues are mixed; the primary product is introduced into a light quantum reforming reactor, high-temperature superheated steam is introduced into the light quantum reforming reactor, in the reforming reactor, the high-temperature steam is dissociated into active [H] atoms and [OH] free radicals under the action of a light quantum field, the active [H] atoms and the [OH] free radicals are subjected to an efficient roaming chemical reaction with primary combustible gas and solid carbon, and hydrocarbon and carbon are preferentially converted into H2 and CO; finally, the reaction product is subjected to pressure swing adsorption or molecular sieve separation to obtain high-purity hydrogen, energy field precise excitation and chemical reaction cooperation are achieved, and the yield and selectivity of hydrogen are greatly improved.

The invention discloses a method for co-processing waste incineration fly ash based on ultrafast carbon thermal reduction, organic solid wastes such as waste rubber and plastic are converted into graphene by utilizing high-voltage instantaneous current, and ultrafast carbon thermal reduction processing of the waste incineration fly ash is realized by utilizing excellent conductivity and reducibility of the graphene. According to the present invention, the waste incineration fly ash is subjected to detoxification so as to ensure the efficient and synchronous removal of the heavy metal and the dioxin in the waste incineration fly ash, the detoxified product is applied to the cement-based composite material so as to optimize the pore structure of the cement binder system and improve the hydration process, and the mechanical property of the building material product is improved, such that the harmless treatment and the resource utilization of the waste incineration fly ash are achieved. The material can be heated to over 3000 DEG C within an extremely short time, internal chemical bonds of the material in a non-equilibrium state are initiated to break and recombine, and evaporation removal of non-carbon elements such as heavy metal and thermal degradation of dioxin are promoted. And the environmental risk of the waste incineration fly ash is remarkably reduced, and co-treatment of the waste incineration fly ash, waste rubber and plastic and other high-carbon organic solid waste can be achieved.

The invention relates to a process for the oxidation of carbon-containing organic compounds where the said compounds have at least one bond with a bond order >1, wherein an oxidizing of these carbon-containing organic compounds to be oxidized is performed with electrochemically generated C—O—O oxidizing agents, in particular peroxodicarbonate. Also described is the use of C—O—O oxidizing agents generated electrochemically from carbonate, in particular peroxodicarbonate, as oxidizing agents for the oxidation of carbon-containing organic compounds, in particular carbon-containing organic compounds where the said compounds have at least one bond with a bond order >1. Finally, an arrangement for the oxidation of carbon-containing organic compounds is provided, comprising a first unit for the electrochemical preparation of C—O—O oxidizing agents generated electrochemically from carbonate, in particular peroxodicarbonate, and a second unit for the oxidizing of the carbon-containing organic compound with the C—O—O oxidizing agent generated electrochemically from carbonate, in particular peroxodicarbonate. In this case, these two units are connected to one another in such a way that an ex situ generated oxidizing agent can be fed to the second unit.

The invention discloses a preparation method of bio-based multi-dimensional carbon nitride antibacterial and antifouling resin. The preparation method comprises the following steps: preparing an acrylic acid modified tertiary carbon compound, and respectively reacting the acrylic acid modified tertiary carbon compound with organic SiO2 hydrophobic colloid and hydrophobic modified inorganic silica sol to prepare tertiary carbon-organic SiO2-a and tertiary carbon-inorganic silica sol-b; the preparation method comprises the following steps: respectively polymerizing tertiary carbon-organic SiO2-a and tertiary carbon-inorganic silica sol-b with methyl methacrylate, butyl acrylate and a fluorine-containing acrylate monomer to prepare a prepolymer 1 and a prepolymer 2, and polymerizing the prepolymer 1 and the prepolymer 2 to prepare the organic-inorganic modified tertiary carbon-fluorosilicone antifouling resin. And preparing bio-based multi-dimensional carbon nitride, and mixing the bio-based multi-dimensional carbon nitride with the organic-inorganic modified tertiary carbon-fluorosilicone antifouling resin to obtain a target product.

This magnetic material comprises magnetic nanoparticles (10) and a low-carbon organic substance (20) having 4 or less carbon atoms. The low-carbon organic substance (20) comprises C, N, O, and H, and has a structure having an amide bond. The magnetic nanoparticles (10) are each formed of Fe, an Fe-containing alloy material, or an Fe-containing compound. The magnetic nanoparticles (10) each have a mean particle diameter of 20-200 nm when being calculated as a ball having the same volume, and have a volume fraction of 80-95 vol%.

The invention relates to the technical field of sewage treatment, in particular to sewage treatment equipment for graded release of carbon sources and synchronous phosphorus recovery, comprising a water inlet unit for receiving carbon-containing organic sludge or sewage; the carbon source conversion unit is communicated with the water inlet unit; the phosphorus migration regulation and control unit is communicated with the carbon source conversion unit and adopts a multi-stage reaction tank structure and a dynamic sludge backflow channel; the phosphorus separation and recovery unit is communicated with the phosphorus migration regulation and control unit; the water outlet unit is communicated with the phosphorus separation and recovery unit and is used for outputting standard water; and the automatic control system is connected with all the units and is used for adjusting operation parameters of all the units in a linkage manner. Compared with the prior art, by arranging the carbon source conversion unit, methanation side reaction can be effectively inhibited, the carbon source conversion efficiency is improved, meanwhile, different water quality characteristics are adapted by flexibly adjusting operation parameters, stable and reliable carbon source supply is provided for subsequent phosphorus recovery and nitrogen and phosphorus removal processes, and overall optimization of the sewage treatment process is achieved.

The utility model discloses a mirror box cleaning system. The mirror box cleaning system comprises a mirror box and an electrode, the mirror box is provided with a cavity, and the mirror box is provided with an air inlet and a vacuum extraction opening which are communicated with the cavity; the electrode is arranged in the chamber, the electrode is connected with a radio frequency source, the gas inlet is connected with a gas source, the gas inlet is used for introducing working gas into the chamber, the electrode is used for ionizing the working gas to generate plasma, and the plasma is used for removing carbonaceous organic matters in the chamber. And the vacuum extraction opening is connected with a vacuum source and is used for extracting gas in the cavity. According to the utility model, carbon-containing organic matters in the chamber of the mirror box can be better removed, and a cleaner vacuum chamber is obtained.

The utility model discloses low-carbon organic wastewater treatment equipment for ultraviolet concerted catalytic oxidation, which belongs to the technical field of wastewater treatment and comprises a purification chamber, a water inlet and a water outlet are respectively arranged at the upper end and the lower end of the purification chamber, and ultraviolet lamps are arranged at the upper end and the lower end of the inner wall of the purification chamber; the purification chamber is coaxially provided with an annular frame body, the frame body is located between the two ultraviolet lamps, and the interior of the frame body is detachably connected with a photocatalyst net; two annular supports are coaxially and rotatably connected to the interior of the purification chamber, and cleaning structures for cleaning through photocatalyst nets are arranged on the supports; two driving motors are arranged on the side wall of the purification chamber, and driving gears meshed with the outer arc surfaces of the corresponding supports are arranged at the output ends of the driving motors; the utility model aims to solve the problem that the photocatalyst reaction efficiency is reduced because impurities in wastewater are gradually adsorbed on the surface of a photocatalyst layer in the treatment process, and can more effectively treat wastewater to achieve the effects of low carbon and energy conservation.

A method for preparing lithium iron phosphate includes: mixing iron phosphate, a lithium source, a carbon source, a dispersant, and a solvent to make a precursor slurry; sintering the precursor slurry to make lithium iron phosphate, where the dispersant includes an ammonium salt compound represented by Formula (1), in which R1 is a carbon-containing organic group.

The present application provides a kind of microbial iron reduction coupling biomass carbon soil carbon sequestration-organic pollution control collaborative remediation method, the present application method is by selecting including nitrogen-fixing bacteria, phosphorus solubilizing bacteria and iron-reducing bacteria Compound bacterial species, mixed with biomass carbon to form microorganism-biomass carbon compound, apply to soil, regulate soil environmental conditions, to promote iron cycle and the carbon sequestration effect of biomass carbon.The specific steps include: selecting nitrogen-fixing bacteria consisting of Clostridium pasteurianum and soybean rhizobium, phosphorus solubilizing bacteria consisting of Bacillus subtilis, flavobacterium or Streptomyces, and iron-reducing bacteria consisting of Geobacter;Prepare biomass carbon;Mix compound bacterial species with biomass carbon;Application and adjust soil pH, moisture content and aeration.The method is suitable for various soils, especially soils susceptible to MCPA pollution, can effectively improve the soil carbon sequestration capacity and reduce environmental pollution.

This invention belongs to the field of single-walled carbon nanotube technology, specifically disclosing a method and application for preparing single-walled carbon nanotube powder using ferrocene suspension. The preparation method is as follows: at room temperature, ferrocene is added to xylene solvent, and a growth promoter is introduced simultaneously. The mixture is ultrasonically dispersed to form a uniform supersaturated ferrocene suspension. Under inert gas protection, the mixture is subjected to high-temperature treatment. A mixture of inert gas, hydrogen, and gaseous carbon-containing organic matter is continuously introduced into the reaction chamber, while the catalyst solution prepared in step S1 is injected into the reaction chamber to react, thereby obtaining single-walled carbon nanotube powder. This invention uses a supersaturated suspension as feed, and ferrocene is uniformly dispersed in the solvent in the form of micro-nano-scale aggregates. After vaporization, it forms a uniformly sized aerosol precursor. Upon entering the high-temperature zone, synchronous and uniform pyrolysis occurs, making the collision probability of the released Fe atoms / small clusters more controllable and significantly reducing the polarization between "large particles" and "overly small clusters."

The invention discloses a method for preparing an arsenic passivator from coal gangue and iron tailings. The method comprises the following steps: mixing iron tailing powder, coal gangue powder and water to prepare slurry; introducing the mixed slurry into a closed reactor, carrying out free radical oxidation exothermic reaction on carbon-based minerals in the coal gangue in a high-temperature and high-pressure oxygen-controlled atmosphere to generate organic acid and organic matters, and forming a reducing atmosphere due to insufficient oxygen supply; under the high-temperature hydrothermal condition, decomposition and reconstruction of the iron tailings and the coal gangue powder are promoted, so that carbon organic matter is converted, iron is activated, and a passivation material is synthesized; and after the reaction is finished, carrying out solid-liquid separation on the reaction product, and washing to obtain the product arsenic passivator. According to the method, organic matter of carbon in the coal gangue is converted and high activity of iron in the iron tailings is converted under the hydrothermal condition of high temperature, high pressure and oxygen control, and the obtained arsenic passivator can effectively achieve fixed passivation of soil arsenic and improvement of the organic matter.

The invention provides a vegetable ground surface source pollution emission reduction method based on a confinement space and application, and belongs to the technical field of agricultural environment. The confinement space comprises an interlayer and a plough layer; the interlayer is located below the plough layer; the interlayer comprises a high-carbon organic layer and a mineral material layer; the high-carbon organic layer is located below the mineral material layer; the high-carbon organic layer comprises a high-carbon organic material; the plough layer comprises plough layer soil and an organic carbon source material. An organic carbon source material and plough layer soil are mixed to serve as a plough layer, the assimilation capacity of the soil nitrate nitrogen can be improved, the soil nitrate nitrogen is assimilated and then stored, then the soil nitrate nitrogen is mineralized into crops to improve nutrients, the nutrients are intercepted in a confinement space through adsorption and interception of the mineral material layer and the high-carbon organic layer of the interlayer, the utilization of the nutrients of the root system is improved, and the yield is increased. The pollution risk of soil nitrogen and phosphorus leaching to surrounding water bodies is reduced in a layered and multi-way mode, and agricultural non-point source pollution caused by soil nitrate nitrogen accumulation and underground water fluctuation is reduced.

The present invention discloses a method for preparing an in-situ graphene-reinforced foam metal skeleton-based composite material. The method comprises using a foam metal skeleton as a matrix and in-situ growing graphene on the surface of the foam metal skeleton by a chemical method combined with calcination, thereby preparing the in-situ graphene-reinforced foam metal skeleton-based composite material. The steps include: 1) removing impurities from the surface of the foam metal skeleton; 2) preparing a mixed solution of carbon-containing organic matter and carbon quantum dots, and immersing the foam metal skeleton in the solution; and 3) heat treating the foam metal skeleton in a spark plasma sintering system. The present invention in-situ grows graphene on the surface of the foam metal skeleton, wherein the microscopic morphology and content of the graphene are controllable. The solution immersion method combined with the heat treatment process can achieve in-situ growth of graphene in the pores within the foam metal skeleton, thereby further improving the comprehensive service performance of the foam metal skeleton.

The application discloses a ruthenium-based ammonia synthesis catalyst with alumina as a carrier and a preparation method thereof. The catalyst is prepared by the following steps: first, impregnating alumina with a water solution containing carbon-containing organic matters, and then high-temperature heat treatment in an oxygen-containing atmosphere to obtain an alumina carrier; then, introducing cerium additives by a precipitation method, and calcining in an inert atmosphere; then, introducing active components ruthenium and performing heat treatment in a carbon-containing gas; and finally, reduction to obtain the catalyst. Compared with the alumina-supported ruthenium catalyst prepared by the prior art, the catalyst prepared by the application has higher ammonia synthesis activity, and has a good application prospect.

The application provides a device and a process for gasification and ashing of carbon-containing organic matter, and relates to the technical field of carbon-containing organic matter treatment. The device comprises a cylindrical furnace body, a cylindrical shaft vertically arranged in the furnace body, and multiple layers of furnace beds perpendicular to the cylindrical shaft. Each of the furnace beds is circumferentially provided with a hollow rotating rake and a magnetic force generator. The rotating rake is in communication with the cylindrical shaft, and the gap between the rotating rake and the magnetic force generator in the furnace bed is provided with a bed of piezoelectric material. A multistage and multipole magnetic field with a temperature of less than 500 DEG C is formed in the device. At this time, oxygen molecules are ionized to form plasma, and the reaction capacity is greatly increased. Meanwhile, a large amount of electrons are released from the pyroelectric material. In a magnetic field with a strength of 0.1-0.5 T, the electrons continuously and orderly pour down the carbon-containing organic matter like a waterfall at a speed of 1.43-3.19 x 10 3 m / s, so that the cohesion of the organic matter is seriously weakened and gradually decomposed, and the gasification and ashing processes are completed.

The application discloses a method for producing calcium-carbon-based biochar ceramsite by sewage sludge and carbide slag, which comprises the following steps: mixing sewage sludge, carbide slag and fly ash by stirring; pressure forming the mixed materials to obtain wet-based columnar particles; sending the wet-based columnar particles to a low-temperature aerobic pyrolysis rotary reactor; preheating the wet-based columnar particles by using tail gas waste heat at the front end to reduce the water content of the particles; forming biochar by aerobic pyrolysis of the biomass contained in the sludge in the low-temperature aerobic pyrolysis zone, and at the same time, the carbide slag reacts with the ambient atmosphere or CO2 generated by pyrolysis to directly provide the mechanical strength of the particles; removing the surface liquid phase product by instantaneous combustion at the end of the reactor; and finally forming calcium-carbon-based biochar ceramsite which is maintenance-free and has high mechanical strength. The application replaces the raw materials such as quicklime and cement in the original biochar ceramsite with carbide slag, greatly reduces the cost, and is maintenance-free, on the basis of retaining the excellent adsorption and phosphorus removal efficiency of the original biochar ceramsite and the performance of adsorbing carbon-containing organic matters of biochar.

The invention discloses a high-performance carbon carrier supported catalyst for hydrogenated bisphenol A production and a preparation method thereof. According to the catalyst, a carbon-containing organic matter is introduced into the surface and pore channels of activated carbon in situ to form a carbon-doped modified layer, and rich oxygen functional groups are constructed through oxidation heat treatment, so that the dispersity of a metal precursor is remarkably improved, and sintering of active components is effectively inhibited; and then preparing the high-efficiency catalyst with low metal loading capacity by adopting a metal precursor solution dipping and roasting reduction process. Compared with the existing common catalyst, the catalyst provided by the invention realizes complete conversion of bisphenol A under mild conditions, the selectivity of the product hydrogenated bisphenol A exceeds 99%, and the catalyst has the characteristics of high catalytic activity, excellent stability, high precious metal utilization rate and outstanding economic benefits, and is suitable for large-scale industrial application.

The invention relates to the technical field of organic solid waste treatment, and discloses a bio-based catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, drying and crushing the landscaping waste to obtain a reactant I; s2, dehydrating the sludge anaerobic digestion biogas residues to obtain a reactant II; s3, mixing the reactant I and the reactant II, and uniformly stirring to obtain a mixture; and S4, mixing the mixture with urea, and then carrying out pyrolytic reaction under the protection of inert gas, thereby obtaining the product. The process is easy to operate, raw materials are easy to obtain, and regeneration can be achieved in a simple and low-consumption treatment mode; the bio-based catalyst can effectively activate persulfate so as to degrade bisphenol A, tetracycline, dicamba, antibiotic resistance genes and other pollutants, the purposes of synergistic interaction, pollution reduction and carbon reduction of urban carbon-rich organic solid waste are achieved, and the dual purposes of treating waste with waste and recycling waste are achieved.

The invention discloses a nitrogen-doped highly-graphitized mesoporous carbon material and a preparation method and application thereof, and relates to the technical field of hydrogen fuel cell catalysis, the nitrogen-doped highly-graphitized mesoporous carbon material comprises a material prepared from ZnxZn1-x (OH) 2-MOF and metal lithium, and X is more than or equal to 0.1 and less than or equal to 0.5. The high reaction enthalpy of formation of a lithium fluoride material is utilized, a large amount of heat can be released when metal lithium reacts with fluoride, a reaction system is rapidly heated, the contact reaction interface of molten lithium and fluorine-containing organic matter is increased, the reaction is extremely rapid, the generated high temperature is sufficient to directly pyrolyze and carbonize the carbon-containing organic matter, and a highly graphitized carbon material matrix is formed; a large amount of gas is generated in the carbon-containing organic matter pyrolysis process, a carbon material matrix is promoted to form a large number of pores, and the purpose of improving the comprehensive performance of the carbon material is achieved.

The application discloses a graphitized activated carbon supported iron-cobalt bimetallic catalyst for synthesizing ammonia and a preparation method thereof, which comprises the following steps: high-temperature heat treatment of activated carbon in an inert atmosphere, oxidation and hole expansion in air to obtain graphitized activated carbon, introduction of carbon-containing organic matter, impregnation of an iron precursor solution, heat treatment in a CO-containing mixed gas, impregnation of a cobalt precursor solution, drying, reduction, impregnation of a potassium precursor solution, drying, reduction, and ammonia synthesis catalyst with graphitized activated carbon as a carrier, iron and cobalt bimetallic as active components and potassium as an additive is obtained. Compared with the activated carbon supported iron catalyst prepared by the prior art, the catalyst obtained by the application has higher ammonia synthesis activity and better application prospect.