13results about How to "Sustainable" patented technology

The invention provides a method for constructing planar chiral [2, 2] paracyclophane by cobalt-catalyzed asymmetric carbon-hydrogen bond activation-kinetic resolution, which comprises the following steps: by using a cobalt catalyst, a chiral ligand and an additive, taking a graphite felt electrode as an anode and taking a platinum sheet electrode as a cathode, carrying out racemization on [2, 2] paracyclophane under the condition of direct-current electrolysis, so as to obtain the planar chiral paracyclophane. The preparation method comprises the following steps: carrying out asymmetric carbon-hydrogen bond dehydrogenation coupling / kinetic resolution on 2, 2] paracyclophane formamide and aryl acid, and after the reaction is finished, carrying out corresponding post-treatment to obtain planar chiral [2, 2] paracyclophane formamide and planar chiral oxopara-[2, 2] paracyclophane; according to the method, electrochemical synthesis of planar chiral oxara-[2, 2] paracyclophane is realized through a method for catalyzing asymmetric carbon-hydrogen bond activation by virtue of a crustal high-yield transition metal, a reaction substrate is wide in universality and excellent in stereoselectivity, and a product and a split and recycled raw material can have an excellent ee value (up to gt; 99% ee) and a splitting factor (up to 1057).

The invention relates to a negative-electrode-free lithium metal battery as well as a preparation method and application thereof. The negative-electrode-free lithium metal battery comprises a positive electrode and a negative electrode, wherein the positive electrode comprises a positive electrode current collector and a positive electrode active material layer; the lithium planting crystal layer is formed on the surface, corresponding to the positive electrode, of the negative electrode current collector; an electrolyte; and a diaphragm. According to the invention, by using an in-situ crystal planting technology, an ultrathin lithium crystal planting layer is constructed in situ on the negative electrode current collector before the first charging and discharging after the battery is injected and packaged, so that the problem of non-uniform nucleation of metal lithium on the negative electrode current collector is solved; after subsequent charging, a compact and uniform lithium deposition layer with strong binding force with the current collector can be formed on the current collector in situ, so that the cycle life is remarkably prolonged while the high energy density is maintained; and the lithium supplement additive and the fluorinated amide electrolyte are combined, so that the lithium ion battery has longer cycle life.

The present invention discloses the preparation of a photoelectric integrated catalytic electrode and its application in the degradation of antiviral drug wastewater, and relates to the technical field of sewage purification and wastewater resource utilization. The composite catalytic electrode includes a CMO electrocatalytic electrode and a WCN photocatalytic electrode, a nickel foam is placed between the CMO electrocatalytic electrode and the WCN photocatalytic electrode to form a composite catalytic electrode with a sandwich structure; the CMO electrocatalytic electrode uses CuMn2O4 particles as a catalyst material and is prepared by electrodeposition and heat treatment; the WCN photocatalytic electrode is prepared by bonding sodium tungstate, melamine and formaldehyde to a substrate through PVP, and then drying and calcining. The composite catalytic electrode of the present invention is coupled with a photoelectric bio-Fenton reaction to achieve the effective removal of acyclovir in antiviral drug wastewater, and the removal rate of acyclovir in the difficult-to-degrade acyclovir wastewater reaches 100%.

The invention discloses a blueberry soil conditioner and a preparation method and application thereof. It belongs to the technical field of soil conditioners. The conditioner comprises the following components by mass: 95-99.5 parts of Bacillus coagulans waste liquid and 0.5-5 parts of component A; wherein the Bacillus coagulans waste liquid is obtained by centrifuging the fermented liquid of Bacillus coagulans after liquid fermentation; component A is one or more of fulvic acid, D-alanine and acetic acid. The beneficial effects of the present invention are as follows: adding a certain amount of component A to the Bacillus coagulans waste liquid can make the spores of Bacillus coagulans in the waste liquid continue to be in a dormant state, and at the same time can promote the growth of blueberries; after the soil is diluted and the conditioner is used, the spore germination inhibition factor disappears, the spores of Bacillus coagulans quickly wake up to reproduce and grow, and produce a large amount of acid, thereby achieving the purpose of regulating soil acidity; regulating soil acidity is sustainable, and the regulating effect can be maintained for 2 months after one application.

This invention discloses a pretreatment method for ecological prevention and coordinated emergency response to colluvial deposits and landslide dams on riverbanks. It utilizes mature trees planted vertically at the slope toe, intersecting with horizontally planted mature trees on the slope surface to form a framework of living trees. Simultaneously, waterproof soil bags filled with rock and soil fragments are used to construct soil pillars or walls, providing support for the horizontally planted mature trees. The framework of living trees and the soil pillars or walls together form a retaining structure to prevent potential landslide impacts. The spaces between the soil pillars or walls create a drainage channel for the landslide dam, collectively providing ecological prevention and coordinated emergency response to colluvial deposits and landslide dams on riverbanks. This invention can replace the post-treatment technology of emergency excavation of spillways after landslide dam formation. By pre-constructing the drainage channel before the dam forms, it achieves ecological protection of riverbanks, reduces the risk of landslide damming, and is easy to construct.

This invention relates to the field of biomass functional materials technology, specifically disclosing a superhydrophobic radiation-cooled wood and its preparation method. The preparation method is as follows: 1) Immersing wood in a sodium chlorite / acetic acid system to remove lignin and constructing a porous wood framework; 2) Using silicon, calcium, and aluminum sources, cement-based nanoparticles are generated in situ on the wood cell walls to obtain a highly efficient scattering micro-nano photonic structure; 3) Using fluorosilanes for low surface energy modification, the superhydrophobic radiation-cooled wood is obtained. The superhydrophobic radiation-cooled wood prepared by this invention has a solar reflectivity ≥90%, an atmospheric window emissivity ≥99%, a surface water contact angle >150°, and an environmental cooling range >10℃. Furthermore, the preparation process is simple, environmentally friendly, and suitable for large-scale production, showing broad application prospects in building energy conservation, outdoor applications, and other fields.

The invention relates to a novel bacterial strain capable of degrading pesticides, in particular to a novel bacterial strain Acinetobacter oryzae F9-1, and a preparation method of the novel bacterial strain Acinetobacter oryzae F9-1. A new strain Acinetobacter oryzae F9-1 is obtained by separation, screening and identification from a soil sample in Hami region of Xinjiang, the strain is subjected to physiological and biochemical characteristic detection, the new strain F9-1 shows that the bacterial colony is small, the surface is smooth, the new strain F9-1 is white and semitransparent on an NB plate, the results of Gram staining, catalase and indole experiments and the like are positive, and the results of oxidase, V.P tests, urease and the like are negative. The strain F9-1 can hydrolyze hydrogen peroxide; l-alanine, lactic acid, L-aspartic acid, quinic acid and the like can be utilized, the strain is sensitive to 8% NaCl, lincomycin, nalidixic acid, chloramphenicol and the like, fluridone and pendimethalin can be degraded, and the strain has the advantages of being environmentally friendly, efficient, economical, sustainable and the like and is an effective means for solving the pesticide pollution problem.

This invention discloses a preservation film, preservation device, and preservation method for edible fungi. The film includes a preservation film substrate in which phosphorescent materials are dispersed. The phosphorescent materials emit light with wavelengths of 470-580 nm under ultraviolet light excitation. The ultraviolet-phosphorescent dual-effect preservation film constructed by this invention can continuously release room-temperature phosphorescence after short-term ultraviolet excitation, achieving a low-energy, intermittent, and long-lasting dual-preservation light response, avoiding tissue damage and accelerated water loss caused by prolonged direct UV irradiation. Furthermore, the composite material used is biodegradable, low-cost, and environmentally friendly.

The invention discloses application of a traditional Chinese medicine composition in preparation of traditional Chinese medicines for adjuvant therapy of AIDS. The traditional Chinese medicine composition is mainly prepared from the following medicinal materials: radix bupleuri, celosia cristata, salvia miltiorrhiza, fructus lycii, liquorice, artemisia capillaris, snake slough, schisandra chinensis, cordyceps sinensis and pig bile powder. The traditional Chinese medicine for adjuvant therapy of AIDS has the effects of resisting HIV, soothing liver-qi stagnation and tonifying spleen and qi, and can be used for clearing away heat and toxic materials, resisting inflammation and viruses and adjuvant therapy of AIDS. The traditional Chinese medicine composition has the pharmacological effects of resisting viruses, resisting inflammation and the like, can effectively inhibit reverse transcription of viruses, and has a good treatment effect on HIV (human immunodeficiency virus) and HBV (hepatitis B virus) infection. In addition, main components of the traditional Chinese medicine composition come from the nature, so that the traditional Chinese medicine composition has the advantages of being natural and safe, and has good safety in clinical application.

The invention relates to the technical field of monitoring and positioning, and particularly provides a regional monitoring and analysis positioning system, which comprises a positioning detection sensor, a relay carrier and a control center, and is characterized in that the positioning detection sensor is composed of a gyroscope, an accelerometer, a storage chip, an energy storage structure, a short-distance communication module, a control system and a circuit board; the relay carrier comprises a high-precision positioning module, a short-distance communication module A, a main control unit and a satellite communication module. The server of the control center has the functions of trigger condition quantification, state machine setting and data management strategy. The system has the advantages of sustainability, emergency response capability, extreme concealment, high-precision reverse positioning, strong target identification capability, low power consumption, high endurance, shortened emergency response time, strong environmental adaptability, stable reliability index, flexible deployment, low cost and great reduction of manpower and time cost. The defect of the bottleneck of a single vibration signal multi-target fine classification technology in the prior art is broken through.

The invention relates to a moisture-friction dual-mode power generation device and application thereof.The power generation material of the moisture-friction dual-mode power generation device has the special design of a layered structure and layered pores, the controllability of components and structural performance of the power generation material is high, the universality is high, the large-scale production potential is large, and the excellent electrical performance and application potential of a dual-mode power generation system are effectively guaranteed. According to the dual-mode power generation system provided by the invention, complementary power collection of moisture and triboelectricity is realized, and research and development of green and sustainable power supplies are promoted.

The invention discloses bio-based epoxy resin modified asphalt. The bio-based epoxy resin modified asphalt is prepared from a first component and a second component, the first component comprises epoxy resin, matrix asphalt, a diluent, a plasticizer, a flexibilizer and a defoaming agent; the second component comprises a modified amine curing agent and a polyether amine curing agent. Wherein the modified amine curing agent comprises bis (cyanoethyl) pentamethylene diamine, bisphenol A diglycidyl ether, a solvent B and a catalyst B in a mass ratio of 80: (5-15): (3-6): (3-6). Bio-based 1, 5-pentamethylene diamine is subjected to cyanoethylation to prepare bis (cyanoethyl) pentamethylene diamine, and then primary amino of the bis (cyanoethyl) pentamethylene diamine and phenolic hydroxyl of bisphenol A are subjected to dehydration condensation or nucleophilic substitution reaction under catalysis to form an amine-phenol grafted structure, so that the cured epoxy asphalt has high toughness, and the toughness of the epoxy asphalt is improved. The compatibility and reaction activity of the curing agent and an asphalt-epoxy system can be improved.

The present invention relates to a method for preparing formic acid by catalytic oxygen oxidation of carbohydrates in a separate manner of catalyst reduction and reoxidation. 40 Using H8PV5Mo7O as a catalyst, the carbohydrates are first selectively oxidized in water to produce formic acid with ultra-high yield, and the catalyst is reduced at the same time. Then, the reduced catalyst is regenerated with oxygen as an oxidant for the next round of carbohydrate oxidation. Compared with the traditional method of preparing formic acid, this method uses biomass carbohydrates as raw materials, avoids environmental pollution, and is sustainable; the reaction conditions are mild and the formic acid yield is high. 40 As a catalyst, it not only has high oxidation activity and good selectivity, but also has high reoxidation activity. Compared with the general method of preparing formic acid by catalytic oxygen oxidation of carbohydrates, this method can significantly improve the selectivity of formic acid and improve the carbon atom utilization rate of carbohydrates.