637 results about "Biomass carbon" patented technology

The invention provides a silicon-carbon material and a preparation method thereof, a porous carbon substrate, a negative electrode material and a battery, and relates to the technical field of battery materials. The core point provided by the invention is controllable synthesis of the porous carbon substrate in the silicon-carbon material, a phenolic monomer and an aldehyde monomer are polymerized in the presence of a catalyst and a dispersing agent, meanwhile, a doping agent and a pre-carbonized biomass carbon precursor are added into a solution, the phenolic resin formed by polymerization is of a spherical structure, and the silicon-carbon composite material is obtained. Homogeneous doping of elements is completed in the synthesis process, the added biomass carbon precursor is of a blocky structure, matching of carbon-based particles of different structures can better exert respective beneficial effects and complement each other, the battery performance is comprehensively improved, and the battery has excellent cycle performance and conductivity.

The invention discloses a zinc-iodine battery positive electrode material based on corn straw shell derived porous carbon and a preparation method of the zinc-iodine battery positive electrode material. According to the material, corn straw shells serve as the sole carbon source, an indigenous nitrogen-doped biomass charcoal carrier with a hierarchical pore structure is prepared through pre-carbonization and KOH activation processes, and the material is characterized in that the specific surface area is larger than or equal to 1500 m < 2 > / g, and the micropore proportion is larger than 90%. The iodine is loaded on the carrier (the iodine content is greater than or equal to 45wt%) through a vacuum sublimation method to form the indigenous nitrogen-doped biomass charcoal / iodine composite material. According to the positive electrode material, through the synergistic effect of physical confinement and pyridine nitrogen chemical adsorption, the multi-iodide shuttle effect is effectively inhibited, so that the capacity retention rate of the zinc-iodine battery is greater than or equal to 93% after 40000 cycles under the current density of 2A g <-1 >, and the capacity retention rate is greater than 45% under the rate of 10A / g. The method has double benefits of agricultural waste resource utilization and high-performance energy storage device development.

The invention relates to the technical field of carbon sink calculation, in particular to a forestry carbon sink calculation model, a forestry carbon credit calculation method and a storage medium. The model comprises an overground biological carbon sink amount estimation module used for calculating overground biological carbon sink data of a target area, an underground soil carbon sink amount estimation module used for calculating soil carbon sink data of the target area, and a litter carbon reserve estimation module used for calculating litter carbon sink data of the target area. The combined loss calculation module is used for calculating carbon loss data; and the final carbon sink total quantity fusion module is used for calculating the carbon sink quantity according to the aboveground biological carbon sink data, the soil carbon sink data, the litter carbon sink data and the carbon loss data. A forestry carbon sink calculation model based on multiple dimensions is established through multiple types of carbon sink estimation modules, and the problem that the requirement for rapid authentication of the global carbon market cannot be met due to high manual dependency is solved; the problems of low calculation precision, high cost and the like caused by insufficient model dynamics, single model calculation dimension and the like are solved.

The present invention discloses a method for preparing a flexible polyaniline / biomass carbon electromagnetic shielding material. After high-temperature carbonization of a fiber fabric, a structurally ordered biomass carbon matrix is ​​obtained. Under the synergistic action of an oxidant and a dopant, aniline monomer is in situ oxidatively polymerized to generate polyaniline that is adsorbed on the surface of the biomass carbon matrix, thereby obtaining the polyaniline / biomass carbon electromagnetic shielding material. The electromagnetic shielding material of the present invention has an intricate and ordered two-dimensional network structure, which helps to establish a conductive network and exhibits excellent electromagnetic shielding effectiveness. In addition, the unique flexibility can fully meet the special requirements of flexible wearable electronic devices, electromagnetic shielding clothing fillers, etc. for the performance of electromagnetic shielding materials. The synthesis process of this method is safe and environmentally friendly, and the required consumables are cheap and abundant, making it suitable for commercialization and industrialization requirements.

The invention discloses a preparation method for preparing a biomass porous carbon material through high-temperature carbonization of molten salt and application of the biomass porous carbon material, and belongs to the technical field of synthesis of inorganic functional materials. According to the technical scheme, the method is characterized in that sodium chloride and potassium chloride are mixed into mixed salt according to different proportions, then the mixed salt is mixed with enteromorpha biomass according to a certain proportion, the mixture is placed in a porcelain crucible, the mixed salt is added for covering, the porcelain crucible is placed in a muffle furnace to be heated and carbonized, and the porous biomass carbon material is obtained after water washing and drying. The enteromorpha biomass is selected as the raw material, the operation is simple and controllable, the cost is low, batch production can be realized, and the prepared novel porous biomass carbon material has a complex porous structure, a large specific surface area, a very good catalytic effect, strong adsorption capacity and good conductivity, and shows excellent performance when being applied to the field of advanced oxidation.

The invention relates to a structural design, synthesis and application of a biomass carbon dot modified poly L-cysteine-S-S-carboxylic acid amphiphilic polypeptide. The invention provides a structural design, synthesis and application of poly (L-cysteine-S-S-carboxylic acid) amphiphilic polypeptide (P-L-cys) modified by biomass carbon dots (CDs). Comprising synthesis of P-L-cys which contains hydrophobic groups, provides hydrophilic and functionalized carboxyl and provides reduction response by disulfide bonds, synthesis of CDs and CDs modified P-L-cys (CDs (at) P-L-cys), and the macroscopic performance change of the polypeptide is explored from regulation factors of a polypeptide secondary structure and a self-assembly nanostructure assembly mechanism. The P-L-cys and the CDs (at) P-L-cys prepared by the invention have functionalization, fluorescence imaging and dual-response drug release and have particle sizes suitable for drug delivery and enrichment, and the CDs also provide a photo-thermal and photodynamic synergistic treatment effect and have good application prospects in the fields of drug delivery, cancer resistance and the like.

The invention belongs to the field of battery materials, and discloses a ferric sodium pyrophosphate material as well as a preparation method and application thereof. The preparation method of the ferric sodium pyrophosphate comprises the following steps: step 1, mixing a phosphorus source, an iron source, a sodium source, a biomass carbon source and an alcohol additive, and uniformly stirring to obtain a mixed material A; step 2, carrying out hydrothermal reaction on the mixed material A, and then centrifuging and drying to obtain an intermediate product B; and 3, roasting the intermediate product C in a protective atmosphere to obtain the carbon-coated ferric sodium pyrophosphate. A three-dimensional conductive network is formed after the biomass carbon source and the NFPP are compounded, the interface resistance is reduced, the charge transfer efficiency is improved, and after the biomass carbon source is carbonized, biomass carbon with mechanical supporting and buffering effects can relieve volume expansion of the NFPP in the charge-discharge or reaction process and inhibit material pulverization, so that the cycling stability is improved.

The invention discloses a method for preparing methanol from carbon dioxide by coupling biomass direct combustion with wind, light, green and hydrogen. The method comprises the following steps: feeding biomass into a biomass boiler through a screw feeder and a trestle for direct combustion to obtain flue gas with high carbon dioxide content; the flue gas is treated to generate carbon dioxide gas with the pressure ranging from 1.4 MPaG to 1.6 MPaG; the method comprises the following steps: mixing carbon dioxide gas and hydrogen according to a molar ratio of about 1: 3, and compressing the mixture into 9.0 MPaG synthesis gas through a synthesis gas compressor; the synthesis gas flows to a gas-gas heat exchanger for heat exchange and temperature rise, and then is introduced into a methanol synthesis tower to form a material; the materials are subjected to heat exchange and cooling through a gas-gas heat exchanger and then flow to a high-pressure flash tank to be separated to form first gas and first liquid; the first liquid flows to a low-pressure flash tank to be separated to form second gas and second liquid conveyed to a crude methanol rectifying tower; separating and purifying the crude methanol in a rectifying tower to form methanol, fusel and overhead gas flowing to the biomass boiler; the utilization rate of the biomass carbon is improved.

The invention belongs to the field of coupling power generation, and provides a coupling pulverized coal fired boiler low-load stable combustion and blending combustion system and a control method. According to the system, cold air from a boiler primary air fan is divided into two paths, one path is directly conveyed to a cold air main pipe, and the other path is conveyed to a hot air main pipe after being preheated by a preheater; the coal mill correspondingly takes cold air and hot air from the cold air mother pipe and the hot air mother pipe, the cold air and the hot air are mixed to a set temperature and then enter the coal mill for pulverized coal drying, and the dried pulverized coal is conveyed to the pulverized coal boiler to enter a hearth for combustion; the biomass gasification furnace takes cold air and hot air from the cold air mother pipe and the hot air mother pipe correspondingly, and the cold air and the hot air enter the biomass gasification furnace after being mixed to a set temperature; the biomass material is gasified in the biomass gasification furnace to generate carbonized products, namely biomass charcoal and biogas; the carbonized product biomass charcoal is conveyed to a coal mill to be milled together with the raw coal, and then is blown to a pulverized coal boiler to enter a hearth for combustion; biogas directly enters the pulverized coal boiler and enters a hearth for combustion.

The invention discloses a sulfur-doped composite hard carbon material as well as a preparation method and application thereof. Sulfonated resin is used as a carbon source and a sulfur source, and non-metal sulfur atoms with the atomic radius larger than that of carbon are doped in situ, so that the carbon layer spacing of hard carbon is increased, and the rate capability of the hard carbon is improved; and the sulfonated resin is subjected to surface pre-coating modification by using a cheap biomass carbon source, so that the specific surface area and defect sites of hard carbon are reduced, the number of closed pores is increased, and the specific capacity and the first coulombic efficiency of the hard carbon are improved.

The invention relates to the technical field of electro-catalysis, in particular to a modified iron monatomic catalyst based on biomass carbon as well as a preparation method and application of the modified iron monatomic catalyst. The preparation method comprises the following steps: mixing and stirring chitosan, an acetic acid solution, thiourea and ferric chloride, adjusting the pH value to 7.5-8.5, and freeze-drying to obtain an aerogel precursor; pre-carbonizing the aerogel precursor to obtain a pre-carbonized product; mixing the pre-carbonized product with an alkali reagent, and calcining to obtain a metal nanoparticle doped monatomic catalyst; and carrying out ultrasonic treatment on the metal nanoparticle doped monatomic catalyst by using a mixed acid solution, washing to be neutral, and drying to obtain the modified iron monatomic catalyst. By adopting the modified iron monatomic catalyst provided by the invention, non-polar CO2 molecules and NO3 <-> are efficiently converted into urea under mild conditions, the yield of the urea is up to 2978.6 mu g h <-1 > mgcat <-1 >, and the maximum Faraday efficiency is up to 30.4%.

The invention discloses a method for preparing a silicon-carbon composite negative electrode material through an electrostatic self-assembly technology, and belongs to the technical field of lithium ion battery negative electrode materials. According to the invention, lignin is used as a biomass carbon source and lauryl sodium sulfate (SDS) and poly (diallyldimethylammonium chloride) (PDDA) are used as activators through a simple electrostatic self-assembly technology; a proper amount of nano silicon and PDDA are subjected to in-situ adsorption, and lignin and SDS are subjected to in-situ adsorption; a self-assembly process is carried out through the positive and negative charge attraction effect among colloidal particles, so that effective compounding of the nano silicon particles and the biomass carbon is realized; and performing vacuum drying, and performing one-stage sintering in a tubular furnace to obtain the silicon-carbon composite negative electrode material. Based on the problems of non-uniform particle size, easy agglomeration and great abrasion of a silicon-carbon composite material in a traditional mechanical synthesis technology, the invention improves the compounding efficiency of the silicon-carbon material and improves the problems of volume expansion of a silicon negative electrode, slow migration rate of lithium ions, poor cycle performance and the like.

The invention relates to the technical field of lithium ion battery negative electrode materials, in particular to a preparation process of a silicon-carbon coated negative electrode material which takes bamboo wood as a biomass carbon source and is combined with nano silicon and a dual carbon coating technology, and the preparation process comprises the following steps: step a, sol loading, step b, vacuum impregnation, step c, interface bonding, step d, inner layer coating and step e, outer layer coating. A silicon-carbon interface in-situ bonding technology and a double-layer carbon coating technology are utilized, a sol-gel method is adopted to construct a Si-O-C chemical bond on the surface of bamboo-based carbon, molecular-level anchoring of silicon particles (20-50 nm) on the surface of a carbon skeleton is achieved, the interface separation problem of traditional mechanical mixing is solved, meanwhile, inner-layer amorphous carbon (2-3 nm) is generated in cooperation with bamboo wood pyrolysis gas, and the surface of the bamboo-based carbon is separated. Then bamboo vinegar is carbonized to form an outer graphitized carbon shell (5-8nm), and the double carbon layers cooperate to inhibit volume expansion of silicon, so that the problem of volume expansion of silicon is solved, and the first charge-discharge efficiency of the battery and the capacity retention rate after circulation are effectively improved.

The invention discloses a lycium ruthenicum biomass carbon dot as well as a preparation method and application thereof. The novel lycium ruthenicum carbon dots are prepared by taking lycium ruthenicum as a raw material and adopting a one-step hydrothermal method, and the novel lycium ruthenicum carbon dots are used for detecting residual herbicides in soil without being interfered by other substances. The method for detecting the herbicide residues in the soil by adopting the prepared novel carbon dots is superior to a large instrument, the detection method has the advantages of simplicity in operation, low cost, high sensitivity and the like, the source of the lycium ruthenicum is wide, and the preparation process is green and environment-friendly. Therefore, the prepared carbon dots provide a new method for detection of the fine phosphinate ammonium salt, and a thought and a method are provided for specific application in agricultural production.

The invention relates to the technical field of battery negative electrode materials, and discloses a biomass derived carbon material as well as a preparation method and application thereof. The surface of the biomass derived carbon material is loaded with nano-clusters or nano-particles of a metal simple substance or a metal compound. The preparation method comprises the following steps: mixing a biomass precursor and a metal salt, and carrying out one-step pyrolysis to obtain the biomass derived carbon material. The biomass derived carbon material can be used as an alkali metal ion battery negative electrode material. Through the unique technical means of loading the metal simple substance / metal compound with the nano-cluster or nano-particle form on the surface of the biomass charcoal, the fast charging performance of the negative electrode material is practically and effectively improved. The battery prepared from the negative electrode material shows excellent comprehensive performance, and has excellent key performance indexes such as charge-discharge efficiency, cycle stability and energy density.

The invention discloses a biomass-based hard carbon composite material quantitatively prepared based on a hard carbon pore volume and a method thereof, a negative electrode material and a battery. The method provided by the invention comprises the following steps: firstly, uniformly dispersing a pore-forming agent in biomass powder, pre-carbonizing, and washing to obtain a porous carbon matrix; according to the steps, pore forming is completed while pre-carbonization is completed, the porous carbon matrix with a certain pore volume is prepared, the dosage of the soft carbon precursor is designed based on the total pore volume in the subsequent steps, quantification and rationalization of the dosage of the soft carbon precursor can be achieved, the obtained product is good in performance consistency, and industrial production can be achieved. And the problem that subsequent soft carbon raw materials cannot be scientifically matched due to diversity of raw materials of biomass with different sources can also be avoided. Besides, by utilizing the chemical cross-linking reaction of asphalt and biomass carbon, not only is the carbon residue rate improved, but also a unique structure rich in closed pores and ultra-micropores is constructed, and the problems of low initial coulombic efficiency and insufficient platform capacity of traditional hard carbon are effectively solved.

The invention provides a composite porous carbon material and a preparation method thereof, and a silicon-carbon negative electrode material and a preparation method thereof, and belongs to the technical field of silicon-carbon negative electrode materials. Liquid resin, biomass carbon and carbon nanotubes are fully mixed in an organic solvent, a high-strength spherical porous carbon material is obtained through processes of spray drying, carbonization, activation and the like, and finally the silicon-carbon negative electrode material is obtained through silicon deposition and carbon coating. The resin coating, the carbon nanotubes and the spherical structure cooperate with one another, so that the strength of the porous carbon structure is greatly enhanced; the high-strength porous carbon base material can effectively relieve the problem of pore fracture caused by silicon expansion and high compaction of the pole piece, improve the first efficiency and slow down long-cycle capacity attenuation.

The invention discloses a preparation method and application of a biomass-based hard carbon negative electrode material based on a microwave solvothermal method, and the preparation method comprises the following steps: fully mixing a pretreated biomass carbon source with a sulfuric acid solution, transferring into a microwave hydrothermal reaction kettle, and carrying out microwave hydrothermal treatment to obtain a hydrothermal reaction product; carrying out solid-liquid separation on a hydrothermal reaction product, collecting filter residues, cleaning until filtrate is neutral, and drying to obtain a hard carbon precursor; performing high-temperature carbonization on the hard carbon precursor under the protection of an inert atmosphere to obtain the biomass-based hard carbon negative electrode material; according to the method, a mixed system of the biomass carbon source and sulfuric acid is pre-carbonized in a microwave solvothermal mode, uniform deliming of the biomass carbon source is achieved under the controllable acidity condition, and the uniformity of the biomass carbon source is improved; the pre-carbonized biomass material is subjected to high-temperature carbonization in an inert atmosphere, so that a hard carbon material with a moderate extension interlayer spacing can be obtained, and the synergistic improvement of high-rate charge-discharge performance and long cycle stability is realized.

The invention relates to the technical field of steel sintering processes, in particular to a biomass gasification coupling system for a steel sintering process, which comprises a biomass gasification system, a circular cooler waste heat utilization system and a waste heat power generation system, the biomass gasification system comprises a biomass drying system, a raw material conveying belt system, a biomass gasification furnace, a biomass gas heat insulation combustion chamber, a sintered coke powder preparation system and a biomass gas purification system, and the biomass drying system is used for drying biomass raw materials; and the dried biomass raw materials are conveyed to the biomass gasification furnace through the raw material conveying belt system. According to the coupling system for biomass gasification for the steel sintering process and the control method, biomass serves as zero-carbon energy, and biomass charcoal obtained after biomass gasification can replace part of solid fuel to achieve the carbon reduction effect. Meanwhile, the biomass gasified gas can replace a part of coal gas, and the carbon reduction effect can also be achieved.

The invention relates to the technical field of heavy metal contaminated soil remediation, in particular to a plant-microorganism-passivator synergistic remediation method for a heavy metal contaminated farmland, which comprises the following steps: step 1, constructing a soil digital twinborn model; step 2, intelligent decision making and verification of a collaborative restoration scheme; 3, soil pretreatment before remediation; step 4, hierarchical collaborative restoration and dynamic regulation and control; 5, performing long-term verification on the repair effect and performing model iteration; physical heat treatment is used as strengthening pretreatment, the occurrence form of heavy metal is changed through high temperature, biomass charcoal is generated in situ, passivation immobilization-microbial strengthening-plant extraction three-stage collaborative operation is carried out according to the time sequence, pollutants are rapidly locked through a passivating agent, rhizosphere immobilization is strengthened through functional microorganisms, plant growth is promoted, and the quality of plants is improved. And the hyperaccumulator finally removes the heavy metals from the soil, so that the unification of short-term control and long-term reduction is realized.

The invention provides a phosphorus-based porous carbon composite material, a preparation method thereof, a negative electrode and a lithium ion battery, and the preparation method comprises the following steps: S1, carrying out etching treatment on a biomass carbon source by adopting an acidic etching agent to obtain a precursor; s2, performing first heat treatment on the precursor to obtain a porous carbon material; the temperature of the first heat treatment is 600-1000 DEG C; s3, carrying out second heat treatment on the porous carbon material and red phosphorus to obtain a phosphorus-based porous carbon composite material; the temperature of the second heat treatment is 460-800 DEG C. According to the preparation method of the phosphorus-based porous carbon composite material provided by the invention, the porous carbon material with a specific pore structure is prepared by taking biomass as a carbon source, and red phosphorus is effectively anchored on the obtained porous carbon material; the lithium ion battery subsequently prepared from the phosphorus-based porous carbon composite material disclosed by the invention has relatively high specific discharge capacity and excellent long-term rapid charging stability.

The invention relates to the technical field of silicon-carbon negative electrodes, in particular to a silicon-carbon negative electrode precursor material, a silicon-carbon negative electrode material and a preparation method of the silicon-carbon negative electrode precursor material. Preparing a porous carbon material; performing vapor deposition on a silicon source on the porous carbon material to obtain a silicon / porous carbon material; putting boron oxide and the silicon / porous carbon material into a ball milling tank according to a mass ratio of (1-5): (80-200), and carrying out ball milling for 1-3 hours to obtain a silicon-carbon negative electrode precursor material; according to the silicon-carbon negative electrode precursor material, the silicon-carbon negative electrode material and the preparation method of the silicon-carbon negative electrode material, the porous carbon material is prepared from the biomass carbon material, the silicon element is deposited on the porous carbon material, the boron element is doped on the porous carbon material, and the obtained silicon-carbon negative electrode material has excellent capacity and capacity retention rate and high electrochemical stability.

The invention discloses a preparation process of a strong hygroscopic slow-release fertilizer based on resin gel, which comprises the following steps: uniformly and fully mixing modified plant fiber and a fertilizer body according to a weight ratio of 3: 5, then adding a diatomite agent accounting for 10-15% of the total amount of the modified plant fiber, and fully stirring to obtain the strong hygroscopic slow-release fertilizer based on the resin gel. According to the strong-hygroscopicity slow-release fertilizer based on the resin gel, modified plant fibers and a fertilizer body are matched, then a diatomite agent is used for blending and improving, the modified plant fibers are prepared into an additive by performing thermal improvement on nano attapulgite, blending biomass carbon and a sodium citrate solution, and the additive is matched with raw materials such as titanium oxide to prepare a modified liquid.

The invention relates to the field of lithium ion batteries, in particular to a biomass carbon / silicon / conducting polymer ternary composite negative electrode material with a hierarchical pore structure and a preparation method and application thereof. According to the material, active nano silicon is effectively limited by utilizing natural graded pore channels of biomass, and a conductive polymer layer with elastic strain buffering capability is prepared by combining a low-temperature in-situ polymerization process. According to the structure, biomass carbon pores are filled with the conductive polymer layer, the specific surface area of the material can be reduced, interface side reaction can be inhibited, and therefore the first coulombic efficiency and cycling stability of the material are improved.

The invention belongs to the technical field of electrode materials, and relates to coffee residue heat treatment doping-based super capacitor carbon and a preparation method and application thereof, coffee residue is used as a raw material, and after hydrothermal carbonization, staged gradient activation and ultrasonic-acid etching coupling treatment, the super capacitor carbon with a rich pore structure is prepared. According to the process, through precise matching of intrinsic characteristics of coffee grounds and process parameters, a hierarchical porous structure is constructed and is matched with an electron transport network formed by self-doping, so that the technical bottleneck that a traditional biomass carbon material is poor in electrical conductivity and difficult to achieve both ion diffusion efficiency is broken through; the super-capacitor carbon with extremely high specific surface area, excellent electricity storage performance and high energy density is finally obtained; a supercapacitor electrode prepared from the supercapacitor carbon has good charge-discharge performance, large specific capacitance, high energy density and good cycle efficiency; moreover, efficient recycling of the coffee grounds can be achieved, the environment-friendly requirement is met, the process is simple, cost is low, and application and popularization are easy.

The invention provides a preparation method and application of a bamboo powder biomass carbon negative electrode material, and relates to the field of electrochemistry and new energy materials. The preparation method of the bamboo powder biomass carbon negative electrode material comprises the following steps: S1, weighing bamboo powder, washing with deionized water and ethanol, and drying in a drying oven to obtain a carbon precursor; s2, activating the dried bamboo powder by using a KOH solution, stirring, filtering and drying to obtain a carbonized precursor; s3, putting the carbonized precursor obtained in the step S2 into a crucible, and treating the carbonized precursor under a high-temperature condition and in a protective atmosphere to obtain a porous carbonized product; and S4, carrying out acid pickling on the porous carbon material by using an acid solution, washing the product to be neutral by using deionized water, and drying to obtain the bamboo powder biomass carbon negative electrode material. The bamboo powder biomass carbon negative electrode material is used for preparing lithium ion battery negative electrode slurry. The method has the advantages that renewable and environment-friendly biomass is used as a carbon source, and the method is environment-friendly, simple in preparation process, suitable for large-scale production and the like.

The invention belongs to the technical field of plastic modification and dyeing, and relates to a low-odor slow-burning biomass porous carbon black modified ABS material and a preparation method thereof.The preparation method comprises the steps that a biomass carbon-silicon material is selected to be subjected to two times of silicon dioxide removal treatment, and then a coupling agent is used for treatment to form a treated biomass porous carbon black material; aBS resin is weighed and put into the stirring pot; adding a wetting agent into the stirring pot, and uniformly stirring; adding a processing aid bag and the treated biomass porous carbon black material into a stirring pot, uniformly stirring at a high speed, and adding the mixed material into a main feeding weightlessness scale; and setting the blanking amount of the weightlessness scale and the rotating speed of the screw rod, and carrying out granulation production. According to the method, under the condition that the impact strength, the bending strength and the tensile strength of a simply supported beam notch are guaranteed, and the simply supported beam notch has a dyeing function, the treated biomass porous carbon black material is used for modifying ABS, so that the odor and the combustion speed of the ABS material can be reduced, and the low-odor and slow-combustion functions are realized.

The invention discloses a biomass carbon loaded manganese dioxide catalyst as well as a preparation method and application thereof. The biomass carbon loaded manganese dioxide catalyst comprises a carrier and MnO2 loaded on the surface of the carrier, and the carrier is carbonized biomass obtained by performing alkali treatment and hydrogen peroxide treatment on biomass and then carbonizing the biomass in an inert atmosphere. The supported catalyst prepared by the method has proper valence and morphology, a MnO2 mixed phase appears, more oxygen vacancies are generated, generation of free radicals in the activation process of peroxymonosulfate (PMS) is facilitated, PMS can be effectively activated to remove organic pollutants, and the activation efficiency of MnO2 on PMS and the operation stability of MnO2 in a packed column are greatly improved. Compared with a traditional method for adjusting the oxygen vacancy of MnO2, the method for loading the biochar is relatively controllable, simple in mode and low in cost.

The invention discloses a bio-based non-cured asphalt waterproof coating and a preparation method thereof, the bio-based non-cured asphalt waterproof coating comprises the following components by weight: 27-34 parts of asphalt; 15 to 18 parts by weight of softening oil; 1.5 parts by weight to 2.5 parts by weight of a rubber modifier; 1.5 to 2.5 parts by weight of a temperature-resistant auxiliary agent; 45 parts by weight to 54 parts by weight of an inorganic filler; 0.455 to 2.75 parts by weight of a modified bio-based carbon aerogel; the modified bio-based carbon aerogel is prepared from amino alkyl alkoxy silane and biomass carbon aerogel through a reaction. According to the bio-based non-cured asphalt waterproof coating, the heat insulation effect of the biomass aerogel is utilized, and the modified bio-based carbon aerogel is combined with the components of the traditional non-cured asphalt waterproof coating, so that the bio-based non-cured asphalt waterproof coating has a waterproof effect and also has a good heat insulation effect.

The invention discloses a low-cost high-first-effect micron silicon negative electrode material and a preparation method and application thereof. The preparation method comprises the following steps: treating the surface of micron silicon by adopting an oxidant solution to form a silicon dioxide passivation layer, and then carrying out surface modification by using a silane coupling agent; the method comprises the following steps: performing acid-base alternate soaking treatment on a biomass carbon source to reduce the content of metal impurities; mixing the delimed biomass carbon source, the composite carbon source and the pretreated micron silicon, firstly adding a weak acid catalyst for hydrothermal reaction to form a hard carbon inner layer, then adding a weak base catalyst for regulating the pH value of the system to alkalescence in batches, and continuing hydrothermal reaction to form a soft carbon outer layer; and washing and drying the product, and carrying out carbonization treatment in an inert atmosphere to obtain the composite coated micron silicon material. The first efficiency of the material is greater than or equal to 92%, the 1C 1000-time circulation capacity retention ratio is greater than or equal to 82%, the raw material cost is low, the process is simple, and the material is suitable for lithium ion batteries in the fields of power, energy storage and consumer electronics.