30results about How to "Good environmental compatibility" patented technology

The invention discloses a composite catalyst for a peracetic acid activation system and a preparation method and application thereof, and relates to the technical field of advanced oxidation water treatment. The preparation method of the catalyst comprises the following steps: preparing an aqueous solution of a cobalt source as a precursor solution; adding a manganese source into the precursor solution to obtain a Co-Mn mixed salt solution; adding a complexing agent into the Co-Mn mixed salt solution to form a stable sol system; heating the sol system at constant temperature to obtain wet gel; drying the wet gel to obtain a porous dry gel precursor; calcining the porous xerogel precursor, and then cooling and grinding to obtain the composite catalyst for the peracetic acid activation system. The composite structure in the catalyst greatly improves the rate of generating hydroxyl radicals and organic oxygen radicals by decomposing peracetic acid by promoting electron transfer circulation of a metal active center, shows good structural stability and recyclability, and is especially suitable for degradation of an organic pollutant sulfamethoxazole in a water body.

This invention provides an antibacterial and antistatic leather surface treatment agent, its preparation method, and its application, relating to the field of functional coatings technology. The treatment agent uses a water-based fluorocarbon-acrylic copolymer resin as a base material, and combines carbon nanotubes and conductive carbon black to construct a three-dimensional conductive network, which can stabilize the surface resistance of leather at 10 Ω·cm. 7 -10 8 This Ω-based antistatic agent exhibits superior long-lasting antistatic properties compared to traditional ionic antistatic agents. Simultaneously, it synergistically combines water-based thorium compounds with nano-titanium dioxide to form a highly efficient antibacterial system, achieving an antibacterial rate of >99.9% against Escherichia coli and Staphylococcus aureus within 24 hours, and still >95% after 6 months, thus solving the problem of short-lasting effectiveness of traditional antibacterial agents. As a water-based system, this treatment agent has VOC emissions <30g / L, meeting environmental protection requirements and satisfying the comprehensive needs of the automotive interior leather products industry for long-lasting antistatic, highly efficient antibacterial, and environmentally friendly performance.

The present invention relates to an offshore storage device for accommodating an inflatable liferaft, the inflatable liferaft comprising an internal volume containing a non-toxic gas, the internal volume having a controllable environment; an inflatable lifesaving device includes an interior volume, an uninflated inflatable lifesaving raft disposed in the interior volume, a gas cylinder disposed at least partially in the interior volume, the gas cylinder containing an inflation gas or a mixture of inflation gases for inflating the inflatable lifesaving raft, where a major portion of the inflation gas or the mixture of inflation gases is nitrogen or air, wherein the pressure indicator is operably connected with the gas cylinder to determine the pressure of the inflation gas in the gas cylinder.

This invention discloses a method for improving the resistance to postharvest black spot disease in sweet potato tubers and maintaining their quality, belonging to the field of postharvest preservation technology for agricultural products. The method includes: selecting undamaged sweet potato tubers for callus treatment at room temperature for 48 hours, disinfecting with 1% sodium hypochlorite, rinsing with sterile water and air-drying, then soaking them in a 9.0 mmol / L benzothiadiazole (BTH) solution (containing 0.05% Tween 80) at room temperature for 60 minutes, removing them and air-drying them to complete the treatment. This invention induces the activation of the sweet potato tuber's own defense system through BTH, increasing the activity of key enzymes in phenylpropane metabolism, chitinase and other disease-resistant enzymes, promoting the accumulation of total phenols and lignin, maintaining cell membrane integrity, inhibiting starch degradation and abnormal increase in soluble sugars. Under storage conditions of 28±1℃ and 80-85%RH, it can significantly inhibit the expansion of black spot disease lesions and extend the storage period to more than 25 days. This method has no pesticide residues, is unlikely to cause pathogen resistance, is environmentally friendly, simple to operate, and cost-controllable, and is suitable for large-scale postharvest preservation of sweet potato tubers.

The application is the application of Spirodela and microorganisms in repairing cadmium-polluted water bodies and reducing cadmium content in cadmium-polluted paddy field rice grains. The specific steps are as follows: first, prepare Oscillospiraceae bacterial suspension, Enterobacter bacterial suspension and Pantoea bacterial suspension respectively; then mix the three kinds of bacterial suspensions in proportion to obtain a mixed bacterial suspension; then add the mixed bacterial suspension and Spirodela prepared in proportion to the cadmium-polluted water bodies to be repaired or the cadmium-polluted paddy fields to be repaired, and the Spirodela and the microorganisms form a "Spirodela-functional bacterial community" symbiotic system; the microorganisms further transport cadmium to the leaves by adsorption, transformation, leaf surface sedimentation or transpiration; finally, the Spirodela is concentrated for treatment, thereby repairing the cadmium-polluted water bodies or reducing the cadmium content in the cadmium-polluted paddy field rice grains. Through the application, the cadmium-polluted water bodies can be better repaired, and the cadmium content in the cadmium-polluted paddy field rice grains can be effectively reduced.

The invention discloses a TEMPO-CNT composite membrane based on layer-by-layer assembly, a preparation method and application, and belongs to the technical field of preparation of electrochemical wastewater treatment materials. According to the composite membrane, a layer-by-layer assembly process is adopted, a carbon-based conductive adsorption layer and a TEMPO catalytic function layer are sequentially constructed on a substrate layer, and an ordered layered structure is formed. According to the structure, the high specific surface area and conductivity of the carbon material are fully reserved, TEMPO active sites are uniformly exposed, and efficient cooperation of pollutant adsorption and electrocatalytic degradation is achieved. The composite membrane prepared by the invention can be adapted to various electrochemical systems such as direct current and alternating current (pulse), trace organic pollutants in wastewater can be efficiently removed with low energy consumption by applying corresponding voltage, and the composite membrane has the advantages of flexible operation, wide application scene, good environmental compatibility and the like.

The application discloses a pesticide synergist and a preparation method thereof. The pesticide synergist comprises a silanol-initiated polyether shown in formula I, an inositol phosphate-initiated polyether shown in formula II, an alcohol auxiliary agent and water. The silanol-initiated polyether shown in formula I and the inositol phosphate-initiated polyether shown in formula II are synergized, so that the adhesion, spreading, penetration and retention capacity of pesticide droplets on a target surface are significantly enhanced, and the utilization rate of the pesticide is effectively improved. The product has the advantages of low toxicity, environmental friendliness, multi-functional synergism, wide compatibility and the like, the preparation process is simple and stable, and the product is suitable for industrial production.

The invention belongs to the technical field of chemical engineering separation, and provides a natural eutectic solvent and a preparation method and application thereof, the natural eutectic solvent comprises the following components: caprolactam, citric acid and water; wherein the molar ratio of caprolactam to citric acid is (1-4): (1-2); the mass of the water is 20-40% of the sum of the mass of the caprolactam and the mass of the citric acid. By introducing water as a third component, the viscosity of the system is effectively reduced, the mass transfer performance is improved, and the denitrification efficiency is improved. The eutecticevaporate solvent provided by the invention can provide more reaction sites, has relatively strong removal capacity and selectivity on nitrogenous organic matters, and can realize efficient denitrification under mild conditions. The natural deep-eutectic solvent prepared by the preparation method disclosed by the invention is applied to removal of basic nitrides of oil products, and has the advantages of short time consumption and low dosage, namely high removal efficiency.

This invention relates to the fields of compound synthesis technology and pesticide technology, specifically to natural naphthoquinone derivatives and their preparation methods and applications. The natural naphthoquinone derivatives are either natural naphthoquinone derivatives containing aryl carboxylic acids or natural naphthoquinone derivatives containing diphenyl ether units. Some of the natural naphthoquinone aryl carboxylic acid derivatives and natural naphthoquinone diphenyl ether derivatives of this invention exhibit 100% control efficacy against six weeds (barnyard grass, crabgrass, foxtail grass, velvetleaf, amaranth, purslane, etc.) at a dosage of 300 a.g. / ha. These compounds achieve good weed control effects at low dosages and have relatively good safety for crops such as corn, wheat, peanuts, soybeans, and cotton. They can be used as selective herbicides in agriculture. The compounds of this invention can be developed and used as potential PSII inhibitors and post-emergence herbicides for broadleaf weeds. The derivatives have simple structures and preparation processes, low production costs, and broad application prospects.

This invention relates to the fields of adsorbent preparation and heavy metal remediation technology, and particularly to an amorphous iron-magnesium-aluminum silicate, its preparation method, and its applications. This invention utilizes molten salt-mediated ion exchange and lattice recombination under high-temperature conditions to completely and uniformly transform various silicate minerals from complex and inconsistent natural clay minerals into a non-naturally formed, structurally homogeneous, and stable amorphous iron-magnesium-aluminum silicate. This overcomes the limitation of traditional adsorbents having a narrow applicable concentration range, exhibiting extremely strong removal capabilities for heavy metal ions from high to low concentrations, achieving deep purification. Based on the theory of "increasing configurational entropy," this invention proposes the design of a silicate network framework with dense, highly active sites and multiple metals, breaking through the traditional approach of "simple modification" of natural clay minerals. It fundamentally reconstructs their material composition, providing a material that combines low cost with revolutionary adsorption performance.

This invention discloses a method for preparing and applying a coumaric acid-modified MOF nanopesticide loaded with chlorantraniliprole, belonging to the field of pesticide formulation technology. The nanopesticide comprises: an iron-based metal-organic framework carrier MIL-101(Fe); chlorantraniliprole loaded within the pores of the carrier; and coumaric acid modified on the surface of the carrier through electrostatic interactions. The preparation method includes three steps: MIL-101(Fe) carrier synthesis, chlorantraniliprole loading, and coumaric acid surface modification. The process is simple and the conditions are mild. This invention utilizes the alkaline environment of the fall armyworm's gut to trigger carrier degradation, achieving targeted and controlled release of active molecules. Simultaneously, the released MIL-101(Fe) is reduced under the action of GSH in the gut, generating reactive oxygen species through the Fenton reaction, forming a synergistic insecticidal effect with coumaric acid. Experiments have shown that this nanopesticide exhibits far superior insecticidal activity against fall armyworm compared to single agents or carriers, possessing excellent insecticidal activity and environmental compatibility, making it suitable for green agricultural production.

The invention relates to a preparation method of a catalyst for preparing acetyl n-propanol through catalytic oxidation of 2-methyltetrahydrofuran, and belongs to the technical field of catalyst preparation. The preparation method specifically comprises the following steps: dissolving a vanadium-containing compound serving as a main component of the catalyst and oxalic acid serving as a pore-forming agent into deionized water; heating and hydrolyzing the solution to completely evaporate water to obtain a solid; and roasting the solid in an air atmosphere to obtain the catalyst. The prepared catalyst is a catalyst for catalyzing molecular oxygen to oxidize 2-methyltetrahydrofuran to prepare acetyl n-propanol, and a new route for preparing acetyl n-propanol is realized.

The present application relates to the field of compound synthesis technology and pesticides, and in particular to a pyridazine derivative, a preparation method and application thereof, the pyridazine derivative is an aromatic ether and an N-substituted phenylcarboxamide group; the aromatic ether is a substituted pyridazine group substituted phenyl ether; the substituted phenyl group is trifluoromethyl or halogen substitution, and the phenyl group containing the N-substituted phenylcarboxamide group is substituted by different halogen groups; the derivative has effective pre-emergence and post-emergence herbicidal activity, and can be applied as a herbicide; the structure of the derivative is simple, the production cost is low, and the application prospect is wide.

The application belongs to the technical field of agricultural fungicidal active ingredients, and particularly relates to a copper-tungsten polyoxometalate and a preparation method and application thereof in the field of agricultural fungicides. The existing agricultural fungicidal POM compounds have defects such as insufficient targeted bacteriostatic activity and insufficient preparation stability. The application provides a copper-tungsten polyoxometalate compound Cu-W-POMs, which exhibits excellent fungicidal activity and can effectively inhibit the cucumber fusarium wilt pathogen. Meanwhile, the compound also has a good inhibitory effect on crop disease pathogenic bacteria such as soybean seed rot, pear black spot and apple anthracnose. In particular, the compound can be used for preparing an agricultural fungicide to prevent and control cucumber fusarium wilt and other crop diseases.

This invention discloses a Bi@Ce-UiO-66-Br catalyst and its photocatalytic reduction of CO. 2 In this application, the catalyst is prepared by a solvothermal method using a ligand-functionalized Ce-based metal-organic framework (Ce-UiO-66-Br), followed by in-situ reduction encapsulation to confine and encapsulate metallic Bi within Ce-UiO-66-Br, forming a core-shell structured photocatalyst. The Ce-UiO-66-Br shell provides spatial confinement and dispersion stability for the metallic Bi, while the Bi core and the Ce-UiO-66-Br shell produce a synergistic catalytic effect, precisely controlling CO2 emissions. 2 The reduction reaction pathway directs the reaction to produce CH4. 4 The catalyst of this invention has a simple and highly controllable preparation process, and the resulting catalyst has a stable structure. It also exhibits photocatalytic CO2 production under simulated sunlight. 2 Reduction of CH 4 The selectivity is nearly 90%, and the photocatalytic stability is excellent; this catalyst can be directly applied to gas / liquid phase photocatalytic CO2 production. 2 The reducing system is CO. 2 Highly selective conversion of CH 4 It provides highly efficient core materials, which have both academic research value and industrial application prospects.

The application provides application of a bean leaf beetle energy metabolism gene MuCOX1 in interfering with normal energy metabolism of the bean leaf beetle, and belongs to the technical field of gene functions.The application provides inhibition of a bean leaf beetle energy metabolism gene MuCOX1 as shown in SEQ ID No.1, can effectively interfere with normal energy metabolism of the bean leaf beetle, and further causes the bean leaf beetle to lose movement ability, stop feeding, and finally die, thereby playing a bean leaf beetle prevention and treatment effect.The application further provides dsRNA targeting the bean leaf beetle energy metabolism gene MuCOX1 and application of the dsRNA in regulating energy metabolism of the bean leaf beetle and preventing and treating the bean leaf beetle, and has a wide application prospect.

This invention discloses an iron-based multimetallic catalytic material, its preparation method, and its application, belonging to the field of catalyst preparation technology. The preparation method includes: dissolving two or more water-soluble metal salts with different hydroxide solubility products in water to obtain a mixed solution A; dissolving potassium ferrate in cold water to obtain solution B; pouring solution B into mixed solution A under stirring to obtain mixed solution C; allowing the solution to settle at low temperature until the supernatant changes color from dark purple to light purple and reaches neutral pH, then filtering, washing, and drying to obtain a precursor; calcining the precursor in a mixed atmosphere of hydrogen and argon to obtain the iron-based multimetallic catalytic material. This material has a multi-layered enclosed microstructure, with metal oxides of high hydroxide solubility products located on the periphery and those of low solubility products located inside, achieving a gradient arrangement and synergistic effect of metal components. The process of this invention is simple and the conditions are mild. The obtained catalyst exhibits high catalytic activity, high selectivity, and excellent stability in the countercurrent water-gas reaction.

The invention discloses an iron-based multi-metal catalytic material as well as a preparation method and application thereof, and belongs to the technical field of catalyst preparation. The preparation method comprises the following steps: dissolving more than two metal water-soluble salts with different hydroxide solubility products in water to obtain a mixed solution A; dissolving potassium ferrate in cold water to obtain a solution B; pouring the solution B into the mixed solution A while stirring to obtain a mixed solution C; after the color of the supernate becomes light purple from dark purple and the pH is neutral, suction filtration, washing and drying are performed, and a precursor is obtained; and calcining in a mixed atmosphere of hydrogen and argon to obtain the iron-based multi-metal catalytic material. The material is of a multi-layer surrounding type microstructure, metal oxides with high hydroxide solubility products are located on the periphery, metal oxides with low hydroxide solubility products are located inside, and gradient arrangement and synergistic effect of metal components are achieved. The method is simple in process and mild in condition, and the obtained catalyst shows high catalytic activity, high selectivity and excellent stability in the reverse water gas reaction.

The invention discloses a method for promoting growth of intercropping crops based on a soil micro food web and application of the method, and belongs to the technical field of crop planting. According to the invention, it is found for the first time that by adding a specific type of bacterial-feeding nematodes into soil, synergistic improvement of growth indexes such as plant height, stem diameter and biomass of two crops can be obviously and stably promoted; the application method is simple and easy to operate, the cost is controllable, and no additional farming equipment or steps are needed; the method is high in environmental compatibility, is particularly suitable for a farmland peanut-corn intercropping system in alkaline and calcareous soil, can effectively improve the crop growth performance, farmland productivity and agricultural product yield and quality, can optimize the soil ecological function, continuously increases the economic benefits of farmers, and has wide application prospects. A brand-new, low-cost and easy-to-popularize candidate scheme is provided for agricultural green sustainable development of the alkaline soil area in North China, and the application prospect is wide.

This invention relates to the field of functional textile technology, and discloses a method for preparing a light-triggered, sustained-release traditional Chinese medicine antibacterial and mosquito-repellent outdoor textile for outdoor environments, as well as the resulting product. The preparation method involves: providing a light-triggered, sustained-release traditional Chinese medicine antibacterial and mosquito-repellent polyamide masterbatch, which consists of a polyamide matrix, uniformly dispersed traditional Chinese medicine composite microcapsules, and hindered amine light stabilizers. The core of the microcapsules contains Artemisia argyi oil, citronellal, and eugenol. The masterbatch is blended with the polyamide matrix, spun, and woven to obtain a grey fabric. The grey fabric is then subjected to ultraviolet light activation treatment to form an initial antibacterial and mosquito-repellent active layer. Finally, the outdoor textile is obtained through finishing. This invention utilizes the photosensitivity of hindered amine light stabilizers to achieve on-demand release triggered by ultraviolet light. The resulting textile exhibits antibacterial and mosquito-repellent effects, retaining ≥80% of its function after 20 washes. It is suitable for outdoor products such as tents, outdoor clothing, and sleeping bags, and has outstanding advantages such as long-lasting effectiveness, environmental safety, and ease of use.

The invention discloses an application of cothine dimethyl ether and sakuranetin as a bacteriostatic agent of a plant pathogen fusarium graminearum, and an application of the cothine dimethyl ether and the sakuranetin in prevention and treatment of wheat scab. According to the present invention, the prevention and the control on the wheat scab are achieved by inhibiting the mycelial growth of fusarium graminearum, inhibiting the biosynthesis of deoxynivalenol, and / or inhibiting the expression of the deoxynivalenol synthesis key gene. Both the cocaine dimethyl ether and the sakuranetin are plant source natural products and have the characteristics of low toxicity, easiness in degradation, high environmental compatibility and the like. Experimental data provided by the invention fully prove that the compound is effective in inhibiting growth of fusarium graminearum and accumulation of DON, is safe and harmless to wheat, can be used as a green replacement or supplement means of a chemical bactericide, provides a new solution for green prevention and control of wheat scab, and has important application value and popularization prospect.

The application relates to a Co-SACs@UIO-66 modified Ti / SnO2-Sb anode and a preparation method and application thereof, and belongs to the technical field of electrocatalytic materials. The anode comprises a Ti / SnO2-Sb electrode substrate and Co-SACs@UIO-66 material loaded on the surface of the electrode substrate. The preparation method is as follows: Co-SACs@UIO-66 material is prepared by solvothermal reaction of a zirconium source, terephthalic acid and a cobalt salt with the addition of acetic acid, and then the Co-SACs@UIO-66 material is spin-coated on the surface of the Ti / SnO2-Sb electrode substrate. The anode can electrochemically synergistically catalyze degradation of sulfadiazine in the presence of persulfate, the degradation rate is greater than 99% within 30 min, the reaction rate constant is 0.135 min ‑1 , the degradation rate still remains above 95% after five cycles, and the cobalt ion leaching concentration is only 0.007 mg / L.

The application belongs to the technical field of thermal insulation paste, and discloses an interior wall thermal insulation paste, a preparation method and application thereof.The interior wall thermal insulation paste comprises the following components: water glass, hollow glass microspheres, organic polymer emulsion, fumed silica, dispersant, silane coupling agent, anti-cracking fiber, aerogel powder, acrylamide / sodium acrylate copolymer, additive and water; the preparation process of step-by-step dispersion and mixing dispersion is adopted, so that the filler in the interior wall thermal insulation paste is uniformly dispersed, thereby achieving the purpose of controlling the cost by using a small amount of filler while ensuring that the interior wall thermal insulation paste has excellent flame retardance and heat insulation; the obtained interior wall thermal insulation paste has low thermal conductivity and excellent heat insulation performance, and the flame retardance grade can reach A1, so that the interior wall thermal insulation paste has excellent flame retardance, and the problems existing in the prior art can be solved, and the application of higher requirement thermal insulation paste can be met.

This invention belongs to the field of microbial technology, specifically disclosing a Bacillus C1-74 strain and its applications. More particularly, it relates to a Bacillus C1-74 strain that promotes growth and significantly inhibits garlic root rot. This Bacillus C1-74 strain was deposited on April 3, 2025, at the China Center for Type Culture Collection (CCTCC), Wuhan University, Wuhan, Hubei Province, with accession number CCTCC M 2025700. This invention discloses a Bacillus C1-74 strain and its applications. This Bacillus C1-74 strain significantly inhibits garlic root rot, effectively alleviating the harmful symptoms of root rot such as browning and decay of garlic roots. Simultaneously, this strain has a significant growth-promoting effect on seedlings of vegetables such as garlic, scallions, cucumbers, and tomatoes.

The invention relates to the technical field of bio-based polyurethane foam, in particular to high-temperature-resistant and flame-retardant bio-based polyurethane foam and a preparation method thereof.The bio-based polyurethane foam is prepared by mixing a component A and a component B according to the mass ratio of 1: 1.2-1.35; wherein the component A is prepared from 75 to 85 parts of a bio-based polyol composition, 8 to 10 parts of a foaming agent, 0.8 to 1.2 parts of a catalyst, 10 to 12 parts of a flame retardant, 1.0 to 1.5 parts of an antistatic agent, 2.5 to 3.0 parts of a functional auxiliary agent, 0.03 to 0.08 part of a visual auxiliary agent, 0.5 to 1.0 part of an antibacterial agent and 0.3 to 0.5 part of a rare earth modified auxiliary agent; and the component B is prepared by mixing diphenylmethane diisocyanate and hexamethylene diisocyanate. The preparation method comprises the following steps: preparing the rare earth ion pre-dispersion liquid, sequentially adding all the materials into a stirring kettle, stirring to obtain the component A and the component B, and mixing the component A and the component B to obtain the bio-based polyurethane foam. The invention solves the problem of single function of bio-based polyurethane foam.

The application discloses a heat transfer composition and a preparation method and application thereof. According to the total mass of the composition, the mass proportions of a first component, trans-1,3,3,3-tetrafluoropropene and difluoromethane are x%, y% and z% respectively, the first component is 2,3,3,3-tetrafluoropropene and 1,1-difluoroethane, the proportions (x, y, z) of the three are located in a ternary phase diagram, the x coordinate of point A is 23.6%, the x coordinate of point B is 90.0%, the coordinates of points on the curve segment AB are (x, 70.06-0.6395x-0.001538x 2 , 29.94-0.3605x+0.001538x 2 ), and the coordinates of point C are (77.6, 0, 22.4). The composition has a GWP of not more than 150 and a flammability level of A2L, is a low-global-warming-potential, high-refrigeration / heat-efficiency and low-flammability heat transfer composition for replacing propane, and is suitable for refrigeration / heat application.

The application belongs to the technical field of biological control of agriculture, and particularly relates to a DNA pesticide as well as a preparation method and application thereof. The application provides a DNA pesticide, which comprises a nano-carrier and a genome of a fungal virus; the fungal virus is a plant pathogenic fungal virus, and can cause pathogenicity decline of a host fungus. The application uses the nano-carrier to load the genomic DNA of the fungal virus, so as to deliver the genomic DNA of the fungal virus to a plant pathogenic fungus, make the genomic DNA of the fungal virus replicate, transcribe and translate in the plant pathogenic fungus, and form a mature virus, thereby causing pathogenicity decline of the plant pathogenic fungus, and achieving the prevention and treatment of fungal diseases.

The application relates to a composite type photo-Fenton catalyst, a preparation method thereof and application in degrading rhodamine B in water, and belongs to the field of pollutant degradation. The application adopts a one-step hydrothermal synthesis process to construct a heterojunction structure Fe 1.833 (OH) 0.5 O 2.5 / In(OH)3, so that the two functional components form an interface with close combination and high stability, and the synergistic effect of the catalytic system is effectively strengthened. Results show that the catalyst has extremely strong degradation capacity for rhodamine B under normal environmental conditions of normal temperature and normal pressure, and more than 90% removal rate can be achieved in a short reaction time, and the coupling degradation effect of photocatalysis and Fenton reaction is very prominent. The preparation method is simple, the reaction condition is mild, the cost of raw materials is low, no complex subsequent purification and modification treatment is needed, and the method has good industrialization amplification production potential. The method can efficiently treat various types of refractory organic pollutants in water, and has remarkable economic value and ecological environment benefits.

The application discloses an inlaid biodegradable polyurethane / lignin composite material and a preparation method and application thereof. The preparation method of the inlaid biodegradable polyurethane / lignin composite material comprises the following steps: (1) obtaining NCO-terminated polyurethane prepolymer by taking polycaprolactone, polycarbonate diol and polyisocyanate as raw materials; (2) mixing and stirring lignin with the NCO-terminated polyurethane prepolymer under a solvent-free condition; (3) adding glycerol or 1,4-butanediol into the system to perform a chain extension reaction, so as to obtain a chain-extended product; and (4) vulcanizing the chain-extended product to obtain the inlaid biodegradable polyurethane / lignin composite material. The application provides application of the composite material in preparation of an armored track shock-absorbing block. The polyurethane / lignin composite material prepared by the application has high strength, low compression permanent deformation and biodegradability and the like, and can improve the bearing capacity and durability of the armored track as a whole.

The invention relates to the technical field of plant extraction, and provides a cinnamomum camphora extract, a preparation method thereof and application of the cinnamomum camphora extract in mosquitocides. Comprising the following steps: drying and crushing cinnamomum camphora branches from which natural borneol is extracted to obtain cinnamomum camphora branch powder; and adding the cinnamomum camphora branch powder into an extraction solvent, carrying out ultrasonic extraction, and filtering to obtain the cinnamomum camphora extract containing lignan. According to the method, the residual value of the cinnamomum camphora branches after natural borneol is extracted is improved, lignan components rich in the cinnamomum camphora branches are directionally extracted, the problem of resource waste in traditional natural borneol processing is solved, and the cinnamomum camphora resources are developed and utilized in a full-chain and high-added-value mode. Lignan in the cinnamomum camphora extract is used as a natural plant source mosquito-killing component, has the advantages of good environmental compatibility, no chemical residue risk, accordance with green prevention and control concept and the like, and provides a sustainable environment-friendly scheme for mosquito prevention and control.