14results about How to "Improve the activation effect" patented technology

The invention discloses a Co3O4-Cu2-xS composite photo-thermal catalyst as well as a preparation method and application thereof. The composite photo-thermal catalyst is prepared by taking a surfactant as a bridge and compounding Co3O4 and Cu2-xS. The composite photo-thermal catalyst has a reduced band gap width, can effectively promote migration and separation of photon-generated carriers, enhances the absorption efficiency of visible light-near infrared light, and shows excellent photo-thermal conversion performance. The composite photo-thermal catalyst can be used for constructing a Co3O4-Cu2-xS + PMS + NIR catalytic system, and peroxymonosulfate is activated under the irradiation of near-infrared light so as to degrade antibiotics in water. Experiments prove that the Co3O4-Cu2-xS + PMS + NIR system disclosed by the invention can achieve the degradation rate of 99% on levofloxacin within 20 minutes, and the generation efficiency of active species is remarkably improved through the synergistic effect of a photothermal effect and interface activation. The catalyst has broad-spectrum degradation activity on various antibiotics, keeps efficient and stable catalytic performance in a wide pH range, and shows excellent ion interference resistance and adaptability to various water bodies.

The invention discloses a water supply plant sedimentation tank floc recycling system and method and a composite carrier material, and belongs to the technical field of water supply plant water treatment. The system comprises a monitoring regulation and control module which is used for collecting floc state data of a sedimentation tank in real time and outputting a control signal according to the floc state data; the composite carrier material supply module is used for adding a composite carrier material into the floc activation reactor according to the control signal; the floc backflow mechanism is used for adjusting recycled floc entering the floc activation reactor according to the control signal; and the floc activation reactor is used for receiving the composite carrier material and the recycled floc and carrying out three-stage activation treatment under the action of an internal flow field to obtain regenerated floc. Solid waste recycling is achieved through floc recycling, and the sludge discharge amount is reduced; and the monitoring regulation and control module combines fuzzy PID with an LSTM model, accurately matches processing requirements, and improves operation stability. According to the invention, the technical problem of floc recycling and reusing is solved.

This invention belongs to the field of metal material corrosion protection technology, specifically relating to a highly active aluminum alloy sacrificial anode for full ocean depth and its preparation method. The sacrificial anode uses Al as the main raw material, with added alloying elements: Zn, In, Ga, Mg, Ti, Ca, and Mn. The preparation method involves first heating Al and Zn to 750–1000℃, then adding In, Ga, Mg, Ti, Ca, and Mn, and finally casting at a temperature of 700–750℃. By adding Ca, an octet aluminum alloy sacrificial anode for full ocean depth is formed. The activation ability is improved by the dissolution and redeposition of In and Ga, the disruption of the continuity and density of the oxide layer by Zn and Mg, and the activation of the Al matrix surface by micron-level dot pairs. At the same time, Ti refines the grain size, resulting in a uniform and segregated distribution of alloying elements, avoiding internal self-corrosion, and improving current efficiency. It can be applied to full ocean depth environments from 0 to 10000 meters, with a current efficiency of 90–95%.

This invention provides an apophene derivative, its preparation method, and its application. The general formula of the apophene derivative structure described in this invention is shown below: Among them, R 1 C 1 -C 8 alkoxy or hydrogen, R 2 For hydroxyl or hydrogen; R 3 Selected from C 1 -C 8 Alkyl, C 1 -C 8 Alkoxy, C 2 -C 10 alkynyl group, C 2 -C 10 alkenyl, halogen, C 1 -C 8 Halogenated, cyano, nitro, or aryl. The use of the 5-hydroxytryptamine 2A receptor agonist and 5-hydroxytryptamine 2C receptor agonist described in this invention in the preparation of medicaments for the prevention and / or treatment of obesity, urinary incontinence, depression, anxiety, obsessive-compulsive disorder, epilepsy, schizophrenia, pain, diabetes, and drug addiction.

The application discloses Pseudomonas songnenensis, a microbial inoculum and application thereof, and relates to the technical field of environmental microorganisms and solid waste resource technology. The Pseudomonas songnenensis strain JP01 is preserved in the China General Microbiological Culture Collection Center, and has a preservation number of CGMCC No. 37102. The strain has salt and alkali tolerance characteristics, and can degrade coal gangue and promote the release of effective phosphorus, available potassium and effective silicon nutrients. After inoculation for 4 days, under normal conditions, the effective phosphorus content of the strain JP01 treatment group is 758.65% higher than that of the CK group; under salt and alkali conditions, the effective phosphorus content of the strain JP01 treatment group is 4.70 times that of the bacillus megaterium treatment group. The strain has good long-term colonization ability in a coal gangue-salt and alkali soil mixed substrate, and the viable cell count can still be maintained at a high level of 2.72x10 7 CFU / g after 90 days of culture. The application is suitable for coal gangue resource utilization and salt and alkali soil improvement, and has good phosphorus element activation ability and functional stability in a salt and alkali environment.

This invention belongs to the field of biomedical technology and discloses a chimeric antigen receptor targeting CD20, its gene expression construct, and its applications. The chimeric antigen receptor provided by this invention specifically includes an amino acid fragment with the sequence shown in SEQ ID NO:29 or a variant fragment having at least 85% sequence identity with SEQ ID NO:29. Its functional fragments, including the signal peptide, antigen-binding region, hinge region, transmembrane region, intracellular co-stimulatory domain, and signal transduction domain, form an organic whole, working synergistically to endow the chimeric antigen receptor with good CD20-targeting binding, T-cell activation, and cell-killing effects, demonstrating excellent application potential in the preparation of drugs for the treatment of relapsed / refractory B-cell malignancies.

The invention discloses a high-performance cobalt-doped cuprous oxide (Co-CuOx) catalyst as well as a preparation method and application thereof in catalyzing reduction of a nitro aromatic compound. The catalyst has a unique graded microsphere structure, cobalt is doped into a cuprous oxide lattice to form bivalent states of Cu < + > / Cu < 2 + > and Co < 2 + > / Co < 3 + >, and the catalyst is rich in oxygen vacancies, so that the electronic structure and the specific surface area of the catalyst are remarkably optimized. The preparation method comprises the following steps: coprecipitating copper and cobalt salts, reducing by using glucose in an alkaline environment, and carrying out a water bath reaction. The catalyst can efficiently catalyze the reduction reaction of 4-nitrophenol, the apparent rate constant of the catalyst reaches up to 38.4 min <-1 > g <-1 > and is 24 times that of pure cuprous oxide, the stability is excellent, the activity is still kept at 90% or above after the catalyst is repeatedly used for 30 times, and the catalyst shows huge practical application potential.

The invention relates to the technical field of wastewater treatment, in particular to a CuMn2O4 / gamma-Al2O3 catalyst as well as a preparation method and application thereof. The CuMn2O4 / gamma-Al2O3 catalyst is composed of a carrier gamma-Al2O3 pellet and an active component CuMn2O4, and the carrier gamma-Al2O3 pellet is The CuMn2O4 / gamma-Al2O3 catalyst disclosed by the invention is applied to an ozone-hydrogen peroxide synergistic catalytic oxidation system for treating organic wastewater, and the activation capability of the surface to ozone and hydrogen peroxide is optimized by utilizing oxygen vacancies between Cu and Mn sites and cation migration characteristics, so that the degradation efficiency of organic matters is improved. The system not only solves the problems of low heterogeneous catalytic oxidation efficiency and poor catalyst stability in the prior art, but also remarkably improves the COD removal efficiency, keeps good cycle stability, and realizes efficient degradation of high-concentration organic pesticide wastewater and reutilization of the catalyst.

The invention belongs to the technical field of catalysts, and particularly discloses a Pd monatomic and nanoparticle synergistic catalyst and a preparation method and application thereof.The active component Pd of the catalyst is loaded on a zirconium phosphate carrier in the forms of monatomic and nanoparticles; the zirconium phosphate carrier is of an amorphous structure, and the specific surface area is 120-180m < 2 > / g; and the mass fraction of the active component Pd in the catalyst is 0.3-3 wt%. The invention solves the problem that the activity, stability and selectivity of the catalyst in the alkyne semi-hydrogenation reaction cannot be combined at the same time through the simple synthesis method.

This application discloses a method for preparing a CuZn-based catalyst and its application. The method for preparing the CuZn-based catalyst includes the following steps: (S1) obtaining a CuZn-based catalyst precursor; (S2) mixing the CuZn-based catalyst precursor and an additive, and dry granulating; (S3) placing the granulated sample obtained after dry granulation in a dielectric barrier plasma discharge region, and passing a dielectric gas through it for discharge treatment to obtain the CuZn-based catalyst. During the preparation process, plasma treatment is used to regulate the electron distribution of Cu species on the catalyst surface, enhancing the interaction between the active component nanoparticles, significantly improving the catalytic activity and stability of the catalyst in the hydrogenation of methyl acetate to ethanol, exhibiting excellent catalytic performance.

The invention discloses a PDA lining confined nano Ti carbon nanotube composite photocatalyst as well as a preparation method and application of the PDA lining confined nano Ti carbon nanotube composite photocatalyst. The carbon nanotube composite photocatalyst comprises uncapped multi-walled carbon nanotubes (MWCNTs) acidized by concentrated nitric acid, an inner cavity of each MWCNTs forms a through channel, and the inner wall of each MWCNTs is covered with an organic lining layer formed by thermocuring of PDA; ti nanoparticles are confined and dispersed between the organic lining layer and the inner wall of the uncapped multi-walled carbon nanotubes (MWCNTs), and are connected with the carbon skeleton through Ti-O-C bonds to obtain the PDA (at) CNTs (at) Ti composite photocatalyst. In practical application, the catalyst shows relatively strong anti-interference capability, can stably operate in a complex water body, and has relatively good reusability and catalytic stability. The method disclosed by the invention has the advantages of simple process, easily available raw materials, high catalytic activity and the like, and particularly has a wide application prospect in the aspects of water treatment and pollutant degradation.

The application relates to the field of building materials, and particularly discloses a coal gangue activation treatment method, calcined coal gangue prepared by the method and application, the treatment method comprises the following steps: pretreatment: crushing and screening coal gangue to obtain coal gangue particles; pretreatment: treating the coal gangue particles in a eutectic solvent, and performing ultrasonic auxiliary treatment for 2-3 hours, and obtaining pretreated coal gangue after washing, the eutectic solvent comprises HBA components and HBD components, the HBA components are selected from a mixture of choline chloride and an amide compound, and the HBD components are selected from a mixture of a carboxylic acid compound and a polyhydric alcohol mixture; calcination: calcining the pretreated coal gangue at 400-450 DEG C to obtain calcined coal gangue, and the application further discloses the calcined coal gangue prepared by the method, and the application has the characteristics of realizing coal gangue activation treatment at a lower energy consumption.

A highly efficient composite catalyst for the Michael addition reaction and its application method are disclosed, relating to the field of catalytic chemistry. The composite catalyst comprises a main catalyst system, a co-catalytic modifier, and a reaction terminator. The main catalyst system is a composite of Lewis base catalyst A and metal salt catalyst B. The co-catalytic modifier works synergistically with the main catalyst system to enhance catalytic performance. In application, through steps such as raw material pretreatment, catalyst preparation, isothermal dropwise addition, temperature-controlled reaction, and termination treatment, this composite catalyst is used in the Michael addition step of the synthesis of 2-chloro-5-chloromethylpyridine, achieving synergistic optimization of catalytic activity and selectivity, providing a reliable technical solution for the efficient synthesis of related pesticide intermediates.

The invention discloses radix ophiopogonis powder capable of improving mitochondrial activity and resisting aging and a preparation method and application of the radix ophiopogonis powder, and relates to the technical field of radix ophiopogonis products. The prepared radix ophiopogonis powder can effectively improve mitochondrial membrane potential, activate a mitochondrial compound I, increase ATP (adenosine triphosphate) generation and reduce ROS (reactive oxygen species) level, remarkably recover heart beat output and realize cross-model mitochondrial activation in a zebra fish myocardial injury model, and can remarkably improve activity of a nematode compound I, nematode movement ability and nematode life in a nematode model. Meanwhile, the compound has good safety in a human body, and can improve mitochondrial activity and delay telomere shortening after being orally taken. The composition is used for human skin, has excellent moisturizing, barrier repairing and anti-oxidation effects, and has the functions of remarkably improving mitochondrial activity and resisting aging.