99 results about "Renewable biomass" patented technology

The invention belongs to the technical field of adhesives, and particularly relates to a preparation method of a polysaccharide-based reversible bonding adhesive for constructing a dynamic covalent bond network. The preparation method comprises the following steps: by taking lipoic acid and sodium alginate as reactants and ferric chloride as a cross-linking agent, carrying out cross-linking reaction under a stirring condition to obtain a lipoic acid adhesive, namely the polysaccharide-based reversible bonding adhesive. According to the invention, renewable biomass resources such as sodium alginate, hyaluronic acid, chitosan and the like are used as main raw materials, so that the adhesive is expected to replace a traditional synthetic adhesive depending on a petroleum base, accords with a sustainable development strategy, contributes to reducing consumption of fossil resources, avoids release of toxic substances such as formaldehyde and the like in the synthesis and use processes, and has a good application prospect. And the method is more environment-friendly. The bio-based polysaccharide raw material has good biocompatibility and degradability, and an ideal base material is provided for developing a green and safe biomedical adhesive.

The present invention discloses a biomass-based ionic liquid-modified carbon quantum dots, a preparation method thereof, and a composite lubricant. The preparation method of the biomass-based ionic liquid-modified carbon quantum dots uses biomass raw materials, choline chloride, and amino acids to prepare carbon quantum dots and choline amino acid ionic liquid. The choline amino acid ionic liquid is used to modify the carbon quantum dots to produce a biomass composite lubricant. This uses renewable biomass resources instead of traditional petrochemical resources, is environmentally friendly, can be decomposed by nature, achieves clean production, and eliminates environmental pollution. The CQDs / ILs composite lubricant can function as "nanoballs," thereby improving its load-bearing capacity and reducing wear. In addition to having good lubricating properties, the choline amino acid ionic liquid also has good solubility. Modifying the carbon quantum dots with the choline amino acid ionic liquid not only improves the dispersibility of the carbon quantum dots but also further enhances their tribological properties.

The present invention relates to a dental diaphragm copolyester and a preparation method thereof, the preparation method comprises the following steps: 2, 5-furandicarboxylic acid or an ester thereof, aliphatic or alicyclic diol and (2-hydroxy-5-formyl phenyl) diphenylborane are subjected to a reaction to obtain an esterification or ester exchange product; and carrying out condensation polymerization on the esterification or ester exchange product and the stabilizer to prepare the copolyester for the dental diaphragm. 2, 5-furandicarboxylic acid is derived from a renewable biomass resource and meets the requirements of green and sustainable development; compared with terephthalic acid and furan ring structures, the film has higher rigidity and polarity, the yield of hot press molding is improved, the same correction force can be met by a thinner film, the wearing comfort of a patient is improved, and meanwhile stress relaxation is improved; the catalyst perfectly combines strong Lewis acidity, intramolecular stabilization and potential bifunctional activation through structural design, provides possibility for efficient and green synthesis of polyester, avoids use of heavy metal, and is higher in biological safety.

The invention discloses a preparation method and application of a double-biomass carbon source coated ammonium polyphosphate intumescent flame retardant with a core-shell structure. Ammonium polyphosphate is used as a core, composite coating of chitosan and zinc stannate is achieved through an ion exchange reaction and a chelation reaction, then a lignin shell layer is introduced through a Mannich reaction, and the lignin and chitosan double-carbon-source coated intumescent flame-retardant antibacterial synergist is obtained. The flame retardant disclosed by the invention is simple and convenient in preparation process and high in safety, most of the raw materials are derived from green renewable biomass materials with low cost, and the flame retardant has environment-friendly characteristic and excellent polymer compatibility. The microcapsule surface modification technology enhances the interfacial interaction between the additive and the polymer matrix, systematic optimization of the flame retardant property of the composite material is realized, and when the flame retardant is used for modifying the TPU material, the molten drop phenomenon and a large amount of dense smoke generated in the combustion process can be effectively inhibited, and the TPU composite material can be endowed with excellent long-acting antibacterial property.

The invention discloses an ester group-containing organic silicon tackifier as well as a preparation method and application thereof. The preparation method of the ester group-containing organic silicon tackifier comprises the following steps: dissolving an itaconic acid compound and hydrogen-containing silicone oil in a solvent, uniformly stirring, adding a catalyst, heating to 25-100 DEG C, reacting, and distilling out the solvent under reduced pressure after the reaction is finished, thereby obtaining the ester group-containing organic silicon tackifier. The tackifier prepared by the invention can effectively improve the adhesion performance of addition type liquid silicone rubber (ALSR) to materials such as polyester fibers, stainless steel iron sheets and aluminum sheets. The additive amount is small, the silicone rubber solution has good compatibility with silicone rubber, and the formed silicone rubber solution is stable in property and long in storage life. In addition, the itaconic acid diester and the itaconic anhydride belong to renewable biomass materials, so that the cost is relatively low.

The invention discloses a degradable bio-based polyurethane wood protective coating. The coating comprises the following components: 40-60 parts of modified bio-based polyester polyol, 10-20 parts of a cross-linking agent, 3-8 parts of an antibacterial agent, 1-3 parts of a weather-resistant agent, 2-5 parts of a hydrolysis stabilizer, 20-30 parts of a solvent, 1-3 parts of a coupling agent, 0.5-1.5 parts of a leveling agent and 0.5-1.5 parts of a defoaming agent. The preparation method of the degradable bio-based polyurethane wood protective coating comprises the following steps: firstly, esterifying binary acid, dihydric alcohol and renewable biomass resources to prepare bio-based polyester polyol, then modifying the bio-based polyester polyol by using a hydrophobic modifier, finally mixing and dispersing the bio-based polyester polyol with other auxiliaries uniformly, and curing to obtain the degradable bio-based polyurethane wood protective coating. The coating has a static water contact angle of 113 degrees at most after being coated, the QUV aging life reaches 480 h, the antibacterial rate reaches 90% at most, the 90-day compost degradation weight loss rate reaches 60% at most, and the coating is environmentally friendly, low in VOC emission and suitable for efficient and durable protection of wood. The invention also provides an application of the degradable bio-based polyurethane wood protective coating.

The invention discloses a boron-phosphorus synergistic starch-based single-component intumescent flame retardant as well as a preparation method and application thereof. Starch, phytic acid, boric acid, allantoin and the like are used as raw materials, and the boron-phosphorus synergistic starch-based single-component intumescent flame retardant integrating an acid source, a carbon source and a gas source is designed and prepared. The flame retardant provided by the invention is simple and convenient in preparation process and high in safety, most of the raw materials of the flame retardant are derived from green renewable biomass materials with low cost, and the flame retardant has environment-friendly characteristic and excellent polymer compatibility. The synergistic effect of the phytic acid boron component in a flame-retardant system can be fully exerted by regulating and controlling the ratio of boron to phosphorus, when the flame retardant is applied to a polylactic acid (PLA) material, the influence on the mechanical property of the PLA is small, the PLA can be endowed with excellent flame retardance, the molten drop phenomenon and a large amount of dense smoke in the combustion process of the PLA can be effectively inhibited, and the biodegradation speed of the PLA can be increased.

The present invention discloses a modified fish scale single-component intumescent flame retardant, its preparation method and application. The present invention uses sodium alginate, fish scale, phytic acid, aluminum salt and melamine as raw materials, and prepares a "three-source-in-one" modified fish scale single-component intumescent flame retardant through a one-pot process. The preparation process of the flame retardant of the present invention is simple and safe. Most of the raw materials are derived from low-cost fishery waste and green renewable biomass materials. It is environmentally friendly and highly compatible with polymers. It has little effect on the mechanical properties of composite materials. It has high flame retardant efficiency when applied to PLA and can effectively suppress its melt dripping.

The invention relates to the technical field of phenolic resin, in particular to dialdehyde cellulose-based phenolic resin and a preparation method thereof. The dialdehyde cellulose-based phenolic resin is prepared from dialdehyde cellulose, phenol, formaldehyde and a basic catalyst. According to the invention, the dialdehyde cellulose prepared from renewable biomass resource cellulose is used for replacing part of formaldehyde to prepare the dialdehyde cellulose-based phenolic resin, so that the use amount of formaldehyde can be reduced by 20%, and the production cost and material toxicity of the phenolic resin are reduced. Meanwhile, the dialdehyde cellulose-based phenolic resin prepared by the method disclosed by the invention has excellent bonding performance and thermal stability. Technical support is provided for solving the problems that biomass components are difficult to utilize, phenolic resin raw materials excessively depend on non-renewable resources, the bonding performance is not ideal and the like, and great application and popularization value is achieved.

The invention discloses a method for preparing 2, 5-furandicarboxaldehyde based on photocatalytic oxidation of BiVO4 / Cs2AgBiBr6 with a wavelength of 440 to 450 nm. The specific method comprises the following steps: preparing a perovskite photocatalytic material BiVO4 / Cs2AgBiBr6; the prepared BiVO4 / Cs2AgBiBr6 is added into a 5-hydroxymethylfurfural (HMF) anhydrous acetonitrile solution, and a photocatalytic oxidation experiment is carried out under the condition of an LED lamp with the wavelength of 440-450 nm. According to the technical process, HMF can be efficiently converted to synthesize 2, 5-furandicarboxaldehyde (DFF), reaction conditions are mild, operation is easy, the method is a cheap and efficient DFF preparation method, reference is provided for renewable biomass resource conversion, and the method has important significance on development of novel renewable energy sources.

The present invention relates to the application of a catalyst in the reaction of catalytic synthesis of bio-based polycarbonate. In the present invention, isosorbide is used to replace bisphenol A to prepare bio-based polycarbonate with organic carbonate. On the one hand, renewable biomass raw materials are utilized, realizing the green chemistry concept of sustainable development. On the other hand, the toxicity problem of bisphenol A polycarbonate in the field of plastic products for many years is also solved. The method for preparing the bio-based polycarbonate in the present invention is simple and easy to operate. The raw materials are derived from biomass and have a high utilization rate. The obtained bio-based polycarbonate is a brown solid and non-toxic. Its thermal properties are similar to those of bisphenol A polycarbonate, and the weight-average molecular weight can reach 5×10<supgt;5< / supgt>.

Renewable biomass feed slurry hydroprocessing is described, including, for example, a slurry hydroconversion process in which a feedstock comprising a renewable biomass component is subjected to slurry hydroconversion. The process generally comprises contacting a solid biomass feedstock and a slurry hydroconversion catalyst under suitable hydroconversion conditions to convert a portion of the feedstock to liquid and / or gas products. The process may utilize raw biomass as a feedstock and does not require the use of chemically processed or modified biomass feeds. Low coke yields may be obtained.

The application belongs to the technical field of polymer material additives, and particularly relates to an anti-photooxidation nano material, a preparation method and application thereof. The anti-photooxidation nano material provided by the application comprises a core, a mesoporous silica intermediate layer wrapping the core, and a long-alkyl-chain hydrophobic modified outer layer grafted on the outer surface of the silica intermediate layer. The core is a nanoparticle formed by self-assembly of biomass polyphenol. The biomass polyphenol in the anti-photooxidation nano material provided by the application is not prone to migration, can exist stably in a plastic matrix for a long time, and the core functional material is derived from natural and renewable biomass polyphenol, thereby avoiding the use of traditional petroleum-based chemicals, and being non-toxic and good in biocompatibility.

The invention discloses a biomass carbon sequestration value-added conversion method which comprises the following steps: S1, pyrolyzing cellulose to obtain carbonized cellulose; s2, performing resistance reduction treatment and / or conductive agent addition on the carbonized cellulose to obtain pretreated carbonized cellulose; s3, performing first Joule heat treatment on the pretreated carbonized cellulose to obtain graphitized cellulose of which the resistance is within a preset range; and S4, carrying out second Joule heat treatment on the graphitized cellulose to obtain the biomass graphene. According to the method, cellulose which is a low-cost and renewable biomass raw material is utilized, the Joule heat technology is combined, cellulose is converted into high-value graphene, and the method has remarkable economic benefits and environmental protection advantages. The method is simple, convenient and efficient, high-quality graphene can be produced on a large scale, a low-cost and sustainable production path is provided for industrial application of graphene, and the method has wide application prospects and market value.

The invention discloses a method for rapidly preparing a renewable biomass filter material through banana tree residue microwave plasma modification, and belongs to the field of solid waste recycling and environmental functional materials. The method comprises the following process steps: (1) carrying out sorting and impurity removal, cutting and crushing, drying and dehydration, fine crushing and screening on banana tree residues to obtain homogenized powder; soaking and activating the powder and a caustic soda aqueous solution at normal temperature to obtain a wet material; (2) mixing the banana tree residue powder with a caustic soda aqueous solution, and soaking and activating at normal temperature to obtain a wet material; and (3) placing the wet material in microwave plasma equipment for rapid modification, and carrying out solid-liquid separation, washing, compression molding and low-temperature drying to obtain the blocky renewable biomass filter material. The biomass filter material has high porosity, high mechanical strength and renewability, the preparation method of the biomass filter material is energy-saving and environment-friendly, the biomass filter material is expected to be applied to the field of sewage treatment, and large-scale value-added utilization of banana tree residues is achieved.

The invention discloses a bio-based single-component moisture-curing polyurethane chain extender containing amido bonds and a preparation method thereof. The preparation method comprises the following steps: dissolving a bio-based monomer containing ester bonds in an organic solvent, and adding a monomer containing primary amine groups at two ends of a structural formula or a monomer containing primary amine groups at one end and hydroxyl at the other end of the structural formula; controlling the temperature of the obtained mixed solution to be 0-80 DEG C, condensing, refluxing, cooling, and carrying out suction filtration on the obtained turbid liquid to obtain a solid containing the bio-based amide chain extender; and washing the bio-based amide-containing chain extender solid with a low-boiling-point solvent to remove the low-boiling-point solvent. A hydrogen bond can be formed among amido bonds in a molecular chain of the single-component moisture-cured polyurethane prepared by utilizing the chain extender, so that the density and interaction force of the hydrogen bonds among hard segments can be increased, the microphase separation structure of the material is improved, and the mechanical property of the material is remarkably improved; the dependence on non-renewable resources can be reduced.

A low-temperature cured bio-based high-toughness epoxy asphalt material relates to the technical field of preparation of road engineering materials, and is prepared from the following raw materials in parts by mass: bisphenol A type epoxy resin, bio-based epoxy resin, a biogenic amine curing agent, an epoxy diluent, a catalyst and matrix asphalt. The asphalt comprises the following components in parts by weight: 15-30 parts of bisphenol A type epoxy resin, 5-18 parts of bio-based epoxy resin, 10-20 parts of a biogenic amine curing agent, 1-5 parts of an epoxy diluent, 0.5-3 parts of a catalyst and 35-55 parts of matrix asphalt. The preparation method of the low-temperature cured bio-based high-toughness epoxy asphalt material comprises four steps. The preparation raw materials mainly come from renewable biomass resources, the production does not depend on non-renewable petroleum resources, and the prepared finished product has good degradability, reduces the risk of environmental pollution, has certain chemical stability and physical properties, and is suitable for industrial production. The pavement performance such as high-temperature rut resistance, low-temperature crack resistance and water damage resistance of the road asphalt mixture can be improved, and the overall quality of the road mixture can be improved.

The invention discloses a high-heat-resistance intrinsic flame-retardant bio-based bismaleimide resin and a preparation method of the high-heat-resistance intrinsic flame-retardant bio-based bismaleimide resin. Firstly, a 4, 4 '-dithiodiphenylamine bismaleimide monomer (S-BMI) containing a disulfide bond is designed and synthesized, then a renewable biomass compound magnolol (MG) and the S-BMI in different proportions are copolymerized, three kinds of novel resins (BG-1, BG-2 and BG-3) are prepared, and the comprehensive performance of the BG novel resin is systematically investigated. The novel BG resin provided by the invention has a multiphase structure, and the Tg of all BG resins is between 298 DEG C and 374 DEG C. In addition, the novel BG resin not only has good impact and bending properties, but also shows excellent flame retardancy, and is at the top level in the currently reported intrinsic flame-retardant polymer. The BG resin disclosed by the invention has excellent heat resistance and flame retardance, and can be used as a key basic material urgently needed in emerging strategic fields such as new energy, electronic information, aerospace and the like.

The invention discloses a chitin carbon-based metal-loaded self-supporting electrode as well as a preparation method and application thereof, and belongs to the technical field of carbon material catalysts. According to the preparation method, rich renewable biomass resources are used for synthesizing a new material, the carbon precursor is rich, cheap and easy to obtain, the modifiability of the carbon substrate is high, the metal load variety is wide, and the system compatibility is good; the scheme has the advantages of simple steps, wide raw material sources, environmental protection and economy, and is beneficial to sustainable development and circular economy. The chitin carbon-based metal-loaded self-supporting electrode prepared by the invention has strong electrochemical corrosion resistance, can promote the action of an electrochemical mediator, and has the advantages of good conductivity, strength, modifiability, uniformity, universality, activity, stability and the like in an organic solvent system; good catalytic activity is shown in water electrolysis and organic electrosynthesis, and a new way is provided for exploring a new reaction or organic electrosynthesis.

This invention relates to functional polymer composite materials, the utilization of renewable biomass polymer resources, and the field of thermal management technology for new energy vehicle batteries. Specifically, it relates to an environmentally friendly insulating and thermally conductive material for new energy batteries and its preparation method. The aim is to solve the inherent contradiction between thermal conductivity and insulation, and the conflict between high thermal conductivity requirements and lightweight and flexibility requirements. The material of this invention is formed by mixing and cross-linking components A and B. Component A mainly includes: castor oil-based polyurethane prepolymer with UPy quadruple hydrogen bond units in its side chains, porous boron nitride microspheres modified with polydopamine coating, modified cellulose nanocrystals containing methacrylate reactive groups, and a reactive flame retardant; Component B mainly includes: a bio-based polyol crosslinking agent, modified porous boron nitride microspheres, modified cellulose nanocrystals, and a melamine polyphosphate synergistic flame retardant.

The invention relates to the technical field of demulsifiers, in particular to a green and environment-friendly polyether demulsifier and a preparation method thereof, and the green and environment-friendly polyether demulsifier is prepared from the following raw materials in parts by weight: 5-15 parts of a biological initiator, 60-80 parts of epoxypropane, 20-40 parts of ethylene oxide, 0.3-0.8 part of a catalyst and 100-150 parts of deionized water. Hydrophobized chitosan oligosaccharide in the used biological initiator can rapidly destroy an oil-water interfacial film, cellulose powder promotes droplet coalescence, the hydrophobic chitosan oligosaccharide and the cellulose powder have a synergistic effect, the demulsifier has the excellent performance of being high in demulsification speed and dehydration rate, meanwhile, the raw materials are derived from renewable biomass, and the environment-friendly effect is achieved. A supercritical carbon dioxide fluid technology and enzymatic degradation are adopted in the preparation process, and the product is low in environmental toxicity and good in biodegradability.

The utility model discloses a multi-return-stroke biomass steam boiler, which belongs to the field of steam boilers, and comprises a combustion chamber, a first boiler is fixedly connected above the combustion chamber, a separation sieve plate is fixedly connected in the combustion chamber, fossil fuel is replaced by renewable biomass materials such as straws, so that resources are saved, sustainable development is facilitated, and energy is saved. Flue gas generated in the combustion chamber heats liquid water through the first boiler and then heats the liquid through the second boiler, waste heat in the flue gas is convenient to use, waste is avoided, after steam is generated in the first boiler, the temperature of the liquid water in the first boiler is not increased any more, the flue gas in the heat conduction pipe is reversely heated, and the heat conduction efficiency is improved. After furnace ash in the combustion chamber is discharged, the second boiler is buried, heat of the furnace ash is used for heating the second boiler, heat preservation and heat insulation are conducted on the second boiler, when smoke in the smoke discharging pipe penetrates through the second boiler, the heating effect is better, and the second boiler can conveniently and rapidly generate steam.

The invention discloses a preparation method of a eucommia bark-based natural wood-plastic composite material. The method comprises the following steps: (1) taking eucommia ulmoides bark as a raw material, and performing mechanical treatment to obtain chippings; (2) partially removing hemicelluloses and lignin by adopting chemical treatment, so that the gutta-percha is fully exposed; (3) performing epoxidation modification on the eucommia ulmoides bark scraps obtained in the step (2); and (4) carrying out hot-pressing treatment on the epoxidized modified eucommia ulmoides bark chippings obtained in the step (3) to realize self-bonding so as to form the natural wood-plastic composite material with a compact structure. The eucommia ulmoides bark-based natural wood-plastic composite material provided by the invention has excellent mechanical property, waterproof property and biodegradability, can realize good cyclic utilization and biodegradation, and is expected to be applied to the fields of packaging and construction. According to the preparation method, renewable biomass resources are used as raw materials, the process is simple, the production cost is low, environmental pollution is small, and a new way is provided for development of the high-performance natural wood-plastic composite material.

The utility model discloses a combustion furnace with an automatic feeding function, which comprises a furnace body, and a feeding port is arranged on one side of the furnace body. Through the cooperation of the quantitative frame, the material collecting box, the feeding hopper and the double-roller type pulverizator, renewable biomass fuel can be pulverized in advance, so that the contact area of the renewable biomass fuel and oxygen during combustion can be increased, the renewable biomass fuel can be fully combusted, and then through the cooperation of the servo motor, the quantitative rollers and the quantitative groove, the biomass fuel can be fully combusted. According to the feeding device for the renewable biomass fuel, the crushed renewable biomass fuel can be quantitatively discharged, a certain gap is formed in each time of discharging, and therefore the safety of discharging can be further improved, and finally through cooperation of a feeding port, a transition channel, a transmission channel, a transmission motor and a spiral blade, the discharging efficiency is improved. And renewable biomass fuel can be stably conveyed into the furnace body to be combusted, so that the effects of automatic feeding of the furnace body and high feeding safety can be achieved.

The invention belongs to the technical field of high polymer material auxiliaries, and particularly relates to an anti-photooxidation nano material as well as a preparation method and application thereof. The anti-photooxidation nano material provided by the invention comprises an inner core, a mesoporous silicon dioxide intermediate layer wrapping the inner core, and a long alkyl chain hydrophobic modification outer layer grafted on the outer surface of the silicon dioxide intermediate layer, the inner core is nano-particles formed by self-assembly of biomass polyphenol, the biomass polyphenol in the photooxidation-resistant nano-material provided by the invention is not easy to migrate and can stably exist in a plastic matrix for a long time, and the core functional material is derived from natural and renewable biomass polyphenol, so that the use of traditional petroleum-based chemicals is avoided; the non-toxic effect is realized; the biocompatibility is good.

The invention discloses a method for synthesizing furyl polyamide from 3-acetamido-5-acetylfuran, and relates to the technical field of renewable biomass conversion. A renewable nitrogen-containing platform compound is used as a raw material, a furyl amino acid derivative is synthesized through oxidative esterification, hydrolysis and other reactions, biomass-based polyamide is further synthesized through polymerization, a nitrogen source does not need to be additionally added, carbon atoms of polyamide completely come from renewable biomass, the oxidative esterification reaction is promoted by adopting a Zn-Nx catalyst, and the yield of the biomass-based polyamide is increased. The catalyst prepared by compounding the Zn source and the N source is used for promoting the oxidative esterification reaction, and the Zn-Nx catalyst combines the catalytic activity of the Zn source and the coordination effect of the N source, so that the selectivity and the catalytic efficiency of the reaction can be improved.

The invention discloses a preparation method of a renewable biomass-derived efficient optical / electric super-hydrophobic coating, and belongs to the field of preparation of anti-icing coatings. The invention aims to solve the problems that the traditional anti-icing material is high in cost, low in photo-thermal efficiency and easy to pollute the environment. The method comprises the steps of 1, pretreatment; 2, preparing a composite coating solution; and 3, coating and curing. Lignin molecules extracted from coffee grounds enhance the hydrophobicity and wear resistance of the coating, lignin can enhance the binding force inside the coating and between the coating and a substrate, falling of the coating is prevented, and the service life of the coating is prolonged; furthermore, lignin molecules have a complex three-dimensional network structure, so that a micron-scale or nano-scale coarse structure can be formed on the surface of the coating, and the super-hydrophobic performance of the surface of the coating is improved; according to the invention, an electric heating, photo-thermal and super-hydrophobic triple anti-icing and deicing method is adopted, and rapid anti-icing / deicing in cold weather is realized through the action of an external electric field, solar energy or self gravity of water drops.

The invention discloses a preparation method of a carbon-based graded porous biological electrode material of a biomass-resin composite material, belongs to the technical field of microbial electrochemistry, and particularly relates to a preparation method of a porous biological electrode material. Aiming at the problems of low electrode-biological membrane interface electron transfer efficiency, low chemical energy-electric energy conversion efficiency and the like in a microbial electrochemical system, the flexible and controllable preparation of a high-performance, low-cost and graded porous carbon-based electrode material is realized by utilizing renewable biomass resources, and the porous carbon-based electrode material is prepared by compounding with an industrial resin material. And the mechanical property and the modification effect of the carbon-based electrode are enhanced. An industrial-grade resin matrix is introduced as a structural support and a conducting medium, compounding of a resin polymer can effectively improve mechanical defects and enhance durability, the resin material can serve as a structural support and a conducting medium, and target element doping and chemical modification can be achieved by flexibly changing synthetic monomers or adding other components.

The present application provides an environmentally friendly cyanide-free gold leaching agent and a process for extracting gold from electronic waste, which belongs to the field of hydrometallurgy technology. The present invention designs an environmentally friendly cyanide-free gold leaching agent, uses non-toxic and renewable biomass resources as raw materials, optimizes its molecular structure through a series of derivatization methods, introduces specific functionalized molecular groups, and prepares a series of environmentally friendly cyanide-free gold leaching agents to solve the problem that existing cyanide-free leaching agents are difficult to process electronic waste. Under the premise of meeting technical feasibility, the balance between economy and environment is achieved to the greatest extent, and the gold leaching process is simple, easy to operate, and conforms to the original facilities of existing enterprises, without the need for additional investment in equipment upgrade costs.

The application discloses a method for preparing DFF by oxidizing HMF based on IMo6-ZnIn2S4 / NiTiO3, and specifically comprises the following steps: first, preparing ZnIn2S4 / NiTiO3 metal sulfide IMo6-ZnIn2S4 / NiTiO3 loaded with heteropoly acid Na5IMo6O 24 ; and second, adding the IMo6-ZnIn2S4 / NiTiO3 into a HMF solution and performing a photocatalytic oxidation experiment under the condition of visible light with a wavelength greater than 400 nm. The process can not only efficiently synthesize DFF with a selectivity of 90.97%, but also has mild reaction conditions and simple operation, and is a cheap and efficient method for preparing DFF. The application provides valuable information for solving the problems of environmental pollution and energy shortage by developing and utilizing the photocatalysis of the metal sulfide loaded with the heteropoly acid, and provides a reference for the conversion of renewable biomass resources.