854 results about "Microwave irradiation" patented technology

The invention relates to the field of food processing, and discloses a pet food hot air drying processing technique which comprises the following steps: heating raw materials by using microwaves, and exciting and evaporating moisture in the raw materials by radiating the raw materials on a conveying belt through the microwaves; moisture on the surface of the food is removed through hot air drying; microwave heating and hot air drying processes are carried out synchronously, and processing data are regulated and controlled in real time through an intelligent control system. The microwave heating is realized through a frequency-adjustable microwave emitter, and the microwave frequency adjustment range of the frequency-adjustable microwave emitter is 2400 MHz to 2500 MHz. The scheme of combining microwave and hot air drying technologies is adopted, microwave is used for heating internal moisture, a hot air system is matched for removing surface moisture, microwave power and hot air temperature are adjusted in real time, the uniform drying effect is achieved, surface hardening is effectively avoided, it is ensured that moisture inside and outside food is uniformly released, and drying quality and efficiency are improved.

The invention belongs to the technical field of pyrolytic carbon black quality detection methods, and particularly relates to a method for determining the specific surface area of carbon black. The method for measuring the specific surface area of the carbon black comprises the following steps: firstly, adding an additive into the carbon black, stirring, centrifuging and filtering; the auxiliary agent is prepared by compounding polyacrylamide, dipolyglycerol dioleate and water; adding water for cleaning, centrifuging, filtering and drying; and finally calculating the specific surface area of the carbon black through a gas adsorption method. According to the method, the carbon black is pretreated, so that the influence of surface oxygen-containing functional groups, aromatic ring impurities and the like on nitrogen adsorption is effectively eliminated, and the problem that the pore structure of the carbon black is damaged by high-temperature degassing in a traditional method is solved through proper microwave irradiation, so that the measured specific surface area result is closer to a true value; methodologies such as precision and repeatability are more stable.

The invention provides a method for recovering all elements of a waste lithium iron phosphate battery positive electrode material. The method comprises the following steps: crushing the waste lithium iron phosphate positive electrode material, and performing nitrogen airflow crushing; adding hydrogen peroxide into the crushed material, performing ultrasonic treatment for multiple times, and performing microwave radiation treatment while performing ultrasonic treatment to obtain a mixture; diluted hydrochloric acid is added into the mixture, ultrasonic treatment is carried out multiple times while stirring is carried out, microwave radiation treatment and filtering are carried out while ultrasonic treatment is carried out, the pH value is adjusted to 3.5-4, then stirring and standing are carried out, a leaching material is obtained, filtering is carried out, and leaching residues and a leaching solution are obtained; the leaching residues are dried and roasted, and iron phosphate is obtained; concentrating the leachate, adjusting the pH value to 9.5-10, standing, filtering, and dropwise adding a sodium carbonate aqueous solution for reaction; and filtering and drying to obtain lithium carbonate. According to the recycling method, resource recycling of all elements can be achieved, the overall recycling rate of iron and lithium is high, and the purity of obtained lithium carbonate and iron phosphate is high.

The invention belongs to the field of tunnel construction and the field of deep engineering disaster prevention and control, and provides a hydraulic and microwave combined insensitive hard rock burst prevention and control device which comprises a vehicle-mounted system, a hydraulic fracturing system and a microwave emission system. The hydraulic fracturing system is used for injecting water into the insensitive hard rock drill hole, forming a hydraulic fracturing crack on the circumferential wall surface of the insensitive hard rock drill hole, and then injecting a sensitive mineral proppant to fill the hydraulic fracturing crack; the microwave emission system is used for moving into the insensitive hard rock drill hole for microwave irradiation after the sensitive mineral proppant is injected; according to the method, hydraulic fracturing, microwave fracturing and sensitive mineral filling are combined and applied to fracturing and pressure relief of the insensitive hard rock of the deep tunnel, and due to the fact that sensitive minerals have high dielectric constants and dielectric loss factors, a good temperature rise effect can be shown under microwave irradiation.

The present invention generally relates to a process for synthesizing a graphene oxide quantum dots-iron phthalocyanine (FePc-GOQDs) nanocomposite with enhanced electrochemical properties, particularly for oxygen reduction reactions (ORR). The process begins by dispersing 500 mg of graphene oxide (GO) in a hydrogen peroxide and deionized water solution in a 1:10 volume ratio, followed by hydrothermal treatment at 180° C. for 8 hours to produce GO quantum dots (GOQDs). The resulting material is freeze-dried to obtain GOQDs powder. Subsequently, 60 mg of GOQDs are combined with 10 mg of iron phthalocyanine (FePc) and 20 mL of dimethyl sulfoxide (DMSO), and the mixture is subjected to microwave irradiation at 500 W and 150° C. for 30 minutes. The resulting composite is rinsed repeatedly with deionized water and ethanol, then dried at 120° C. to yield the FePc-GOQDs nanocomposite. This composite demonstrates superior ORR performance due to strong Fe—O bonding and optimized electronic interactions.

The invention relates to a preparation method of a microwave-assisted synthesized near-infrared electrochemical luminescence gold nanocluster and application of the gold nanocluster in miRNA (micro Ribonucleic Acid) detection. The preparation method comprises the following steps: under a stirring condition, adding a gold source and alkali into a Met solution to obtain a mixed solution, carrying out microwave irradiation reaction, and carrying out solid-liquid separation to obtain a Met-Au NCs solution; the preparation method comprises the following steps: activating a Met-Au NCs solution by using EDC and NHS, adding a DNA solution, mixing, and dialyzing to obtain a Met-Au NCs-DNA compound, namely the near-infrared electrochemical luminescence gold nanocluster. Compared with Au NCs prepared by a common mild method, the Met-stable Au NCs prepared by a microwave-assisted method has the advantage that the fluorescence and electrochemical luminescence efficiency at 835 nm is improved. The invention also provides a'signal closing 'ECL (electron cyclotron ligand) biosensor for high-sensitivity detection of the miRNA-107 (MicroRNA-107), and a method for detecting the miRNA-107 (MicroRNA-107). The sensor is simple to operate and good in repeatability, and has important scientific significance and application value for clinical early diagnosis of cancers.

The invention belongs to the technical field of coal mine safety mining, and relates to a microwave-hydraulic power combined permeability-increasing pressure relief and gas extraction method, which comprises the following steps of: firstly, carrying out geological survey and coal sample test to obtain physical and mechanical parameters of a coal seam; calculating the fracture pressure of the coal seam according to the parameters and determining hydraulic fracturing and microwave irradiation parameters; a hydraulic fracturing drill hole and a microwave irradiation drill hole are constructed; fracturing, irradiation and monitoring equipment is installed; performing low-frequency microwave preheating on the coal seam, and then performing staged hydraulic fracturing; the fracturing effect is evaluated through micro-seismic monitoring, and a weak area is marked; and finally, high-frequency microwave enhanced irradiation is carried out in the weak area, and meanwhile gas extraction is carried out. According to the method, through the synergistic effect of microwave thermal cracking and hydraulic fracturing, the coal seam permeability and the gas desorption efficiency are remarkably improved, meanwhile, the rock burst risk is reduced, safe and efficient gas extraction is achieved, and a reliable technical scheme is provided for high-gas coal seam mining.

The invention discloses a cloud phase fine identification and liquid water and ice water quantitative remote sensing device, which comprises a split-phase cloud water quantitative detection laser radar, a novel temperature and humidity remote sensing system and a millimeter wave cloud radar, and is composed of a laser emission module, a telescope receiving module, a microwave radiation module, three laser radar detection modules and a digital signal processing module. The system is composed of a central control processing module and a terminal server. The invention further discloses a remote sensing method of the quantitative remote sensing device. All-day detection and quantitative inversion of liquid water, ice water, water vapor, aerosol and cloud are achieved through the split-phase cloud water quantitative detection laser radar. A novel temperature and humidity remote sensing system is adopted to realize real-time fine detection of a temperature and humidity profile in the cloud. According to the cloud phase state fine identification and liquid water and ice water quantitative remote sensing device and method provided by the invention, the problems that the quantitative detection precision of the liquid water and ice water content in the cloud is insufficient and the mixed phase cloud identification is difficult in the prior art are solved.

The invention belongs to the technical field of road maintenance, and discloses a road concrete pavement layer self-adaptive crushing method based on microwave-assisted resonance, and the specific technical scheme is as follows: a microwave heating device is used for pretreating a cut and divided crushing area, and a concrete layer is weakened through a heating effect of microwave radiation to realize separation of a pavement layer; when it is judged that the temperature of the concrete in the heating area reaches the needed temperature through the thermal infrared imager, the inherent frequency of the concrete is calculated, a calculation result is fed back to the resonance crushing device, and the resonance crushing device enables the pavement layer to generate forced vibration to be crushed by generating excitation frequency; the novel method for crushing the concrete pavement layer based on microwave-resonance energy coupling has the characteristics of being accurate, controllable, efficient, applicable to multiple scenes and the like, and can be matched with an acoustic emission system to realize closed-loop control of concrete crushing, so that the working environment of the concrete pavement layer is greatly improved, and the service life of the concrete pavement layer is prolonged. And the maintenance frequency of the equipment is greatly reduced while the crushing efficiency is improved.

The invention discloses a biological tissue internal temperature microwave chromatography method and system, and belongs to the technical field of microwave measurement. The problem that the internal temperature of the biological tissue cannot be accurately obtained by adopting a microwave radiation temperature measurement technology nowadays is solved. The method comprises the following steps: acquiring environmental thermal radiation rates under different environmental conditions, and acquiring temperature distribution data of a human tissue profile to be subjected to temperature measurement along with depth change under different environmental conditions by utilizing a real three-dimensional anatomical model, a heat conduction equation and a thermal radiation equation of the human tissue to be subjected to temperature measurement; calculating dielectric constants of the human tissue to be subjected to temperature measurement under different frequencies, and obtaining radiation brightness temperature data of different frequencies under different environmental conditions by combining the temperature distribution data and a real three-dimensional anatomical model of the human tissue to be subjected to temperature measurement; constructing a brightness temperature-temperature conversion matrix by adopting a least square method; and acquiring brightness temperature data of different frequencies of human tissue to be subjected to temperature measurement, substituting the brightness temperature data into the brightness temperature-temperature conversion matrix, and performing inversion to obtain temperatures of different depths of the human tissue to be subjected to temperature measurement. The method is suitable for temperature measurement.

The invention relates to a method for preparing lithium sulfide at low temperature by microwave molten salt assisted carbon disulfide-lithium salt reaction, and belongs to the technical field of key materials of lithium-sulfur batteries and solid-state batteries. The technical problems of high energy consumption, difficulty in inhibiting by-products, insufficient purity and crystal phase stability, difficulty in continuous amplification and the like in the existing lithium sulfide preparation process are solved. Comprising the following steps: step 1, performing crushing, screening and grading treatment on lithium source powder; step 2, placing the treated lithium source powder and molten salt in a closed reactor, and introducing CS2 in a gas or liquid form; 3, applying microwave radiation, and reacting at a gas-solid-liquid multiphase interface to generate lithium sulfide; and 4, cooling the material after the reaction to room temperature, separating and recovering the fused salt to obtain the lithium sulfide powder. The method is low in reaction temperature, low in energy consumption, high in reaction rate, high in product purity and suitable for continuous and industrial production.

The invention relates to a method for preparing a cement admixture resistant to mine water erosion by microwave synergistic chemical modification of fly ash, and belongs to the technical field of industrial solid waste recycling and building materials.According to the method, fly ash particles are mechanically activated and crushed, and a composite modifier treatment and gradient microwave activation technology is combined, so that the cement admixture resistant to mine water erosion is prepared; the activity of the fly ash and the erosion resistance of the cement-based material are obviously improved. The preparation process comprises the following steps: carrying out multi-stage mechanical grinding on the fly ash to obtain ultrafine powder; adding a composite modifier containing a mineral active component, an organic-inorganic composite modifier and a nano functional material for chemical activation; microwave irradiation and nitrogen quenching are adopted to cooperatively process and reconstruct the microstructure of the material; and finally forming through a microwave-steam coupling curing process. The obtained cement admixture can effectively solidify corrosive ions in mine water, improve the durability of traditional cement in a complex ion environment, and realize bulk resource utilization of fly ash solid waste.

The invention discloses a method for producing active lime by calcining limestone, which comprises the following steps of: crushing limestone raw ore, cleaning to remove mud, and removing magnetic components by using a magnet to obtain limestone powder with the particle size of less than 3mm; then adding limestone powder into a 1-2 mol / L sodium hydroxide solution with the weight 3-5 times that of the limestone powder, carrying out ultrasonic oscillation treatment, filtering to obtain a solid I, washing to be neutral, stirring and dispersing in a dispersion liquid, carrying out microwave irradiation under the condition of an alternating magnetic field, and filtering to obtain a solid II, so as to obtain pretreated limestone powder; freezing the pretreated limestone powder under a static magnetic field condition to obtain frozen limestone powder; and finally, mixing and calcining the pretreated limestone powder and carbon dioxide adsorption balls with the particle size of 10-15mm, and separating to remove the carbon dioxide adsorption balls, thereby obtaining the active lime. The obtained active lime is high in calcium oxide content, few in impurities, high in activity degree and good in stability.

The present invention belongs to the technical field of fly ash resource recycling and utilization, and relates to a method for the synergistic extraction of aluminum, lithium, gallium, and scandium from fly ash. The method comprises the following steps: (S1) pretreatment: adding fly ash to an aqueous solution of an inorganic base, subjecting it to microwave irradiation, and then pressurizing and activating it to obtain a pretreated product; (S2) graded acid leaching: subjecting the pretreated product to primary acid leaching in hydrochloric acid to obtain leachate I and a Si-rich residue I; subjecting the Si-rich residue I to secondary acid leaching in a mixed solution of hydrochloric acid and choline chloride-urea to obtain leachate II and a Si-rich residue II; and (S3) separation and purification: comprising selective adsorption of Ga / Sc / Fe by ion exchange resin, Ca removal and Al / Li separation, step-by-step resin elution, Ga / Sc extraction and separation, Ga stripping, and electrolysis. The present invention achieves efficient synergistic extraction and full resource utilization of aluminum, lithium, gallium, and scandium from fly ash, and the entire process has low energy consumption.

According to the microwave reactor and method for recycling the three-way catalytic precious metal, through the synergistic effect of microwave radiation and the telescopic glass stirring rod, the problem that the mass transfer efficiency is low due to high viscosity of a traditional ionic liquid leaching system is solved, the precious metal leaching time is shortened, and the efficiency is improved. Meanwhile, a diamond ATR crystal infrared probe is adopted to monitor components of a reaction solution in real time, multi-parameter linkage control of microwave power, temperature and stirring rate is combined, reaction conditions are dynamically optimized, and the recovery rate of platinum, palladium and rhodium is increased. The method systematically solves the technical bottlenecks of high energy consumption, heavy pollution and low ionic liquid leaching efficiency of the traditional pyrogenic process / wet process, and provides an innovative scheme with high efficiency, low environmental load and industrial feasibility for precious metal recovery.

The invention provides a superconducting diode based on superconducting quantum interference, a preparation method thereof and a quantum device. The superconducting diode provided by the invention can realize a one-way conduction function at an extremely low temperature, and has extremely low power consumption, so that basic parts of a low-temperature quantum circuit are greatly expanded. And the required external magnetic field is very small and can be provided by an external magnet and a current circuit prepared on the same chip as the device, so that the application is convenient. In addition, under low-temperature microwave irradiation, the device shows the capacity of small change along with microwave power, and it is indicated that the device also has the stable working capacity in the high-power microwave environment.

A method of delaminating a photovoltaic module is disclosed wherein the photovoltaic module comprises at least one solar cell having a first surface and a second surface opposite to the first surface, a first protective sheet, and a first encapsulant material positioned between the first surface of the at least one solar cell and the first protective sheet and fixing the first protective sheet to the at least one solar cell, the method comprising applying microwave radiation to the at least one solar cell to heat the at least one solar cell to a temperature above a melting or softening temperature of the first encapsulant material, wherein heat is transferred from the at least one solar cell to the first encapsulant material. A method of manufacturing a photovoltaic module is also disclosed that comprises applying microwave radiation to at least one solar cell.

The invention belongs to the field of material cracking, and particularly relates to a microwave bipolar heating-based in-situ graded cracking method for a carbon fiber composite material, which comprises the following steps of: initializing a feeding speed, and combining a preset three-dimensional model of a to-be-cracked material with a graded inversion function space; a multi-stage cracking control sequence containing parameters such as the feeding rate, the preheating temperature and the dual-frequency microwave radiation power is obtained through inversion, wherein a hierarchical inversion function space comprises a hierarchical hierarchical cracking feedback control node chain constructed through an associated fuzzy control algorithm. And generating a control instruction based on the control sequence and the hierarchical linkage control model, monitoring the splitting efficiency and the energy consumption conversion efficiency in real time, and feeding back to the node chain to adjust the control sequence. The node chain construction relates to flow splitting, parameter node set establishment, correlation analysis, feedback factor construction and the like, and finally, through simulation training optimization, splitting efficiency maximization and energy consumption and pollution minimization are realized.

Adsorption performance is recovered and improved by regenerating used powdery activated carbon using microwave heating. This method for regenerating activated carbon involves: a step for placing activated carbon having an average particle diameter of 1-100 μm on a flat plate; and a step for subjecting the activated carbon on the flat plate to microwave heating to regenerate the activated carbon. While microwave heating is being performed, the flat plate may be repeatedly moved forward and backward by a belt conveyor or a roller conveyor. The temperature of the activated carbon during microwave heating may be measured, and microwave irradiation energy may be controlled on the basis of a measurement result.

The invention discloses a buton rock asphalt micro-powder composite waterproof material and a preparation method thereof, and belongs to the technical field of building waterproof materials. Wherein the waterproof roll coating material is prepared from the following raw materials: matrix asphalt, buton rock asphalt micro powder, an SBS modifier, naphthenic oil, polypropylene, talcum powder and nano titanium dioxide or boron nitride nanosheets; the waterproof coating is prepared from the following raw materials in parts by weight: matrix asphalt, buton rock asphalt micro powder, an SBS modifier, bentonite paste, fluorocarbon emulsion, water and nano titanium dioxide or boron nitride nanosheets, the preparation method comprises the following steps: crushing blocky buton rock asphalt into powder of which the particle size is less than or equal to 75 microns, performing microwave activation in a microwave radiation device, adding a silane coupling agent, mixing, and drying to obtain the buton rock asphalt micro powder. The Buton rock asphalt micro powder is added to improve the dispersity of the Buton rock asphalt in the asphalt, so that the Buton rock asphalt is suitable for preparing waterproof coiled materials and self-healing waterproof coatings with high weather resistance and puncture resistance.

A transmitting / receiving unit (100) for level measurement comprising a generator and a receiver is proposed, wherein the generator (120) is set up and configured to emit microwave radiation (102) for level measurement; and wherein the microwave radiation (102) is generated by the generator (120) based on a physical quantum effect; and the receiver (130) is set up and configured to detect microwave radiation; wherein the receiver (130) is set up and configured to detect microwave radiation (102) emitted by the generator (120) and microwave radiation (102) reflected by a filling material (101) in order to provide a signal for determining a level.

The utility model particularly relates to a laser and microwave combined rock cracking experiment device, and belongs to the field of rock cracking experiment devices. The laser and microwave combined rock cracking experiment device comprises an experiment cavity, a bearing part, a laser component and a microwave component. The bearing part is accommodated in the experiment cavity and is used for placing a sample; the laser part is used for emitting laser to irradiate a sample, the microwave part is used for emitting microwaves to irradiate the sample, and the laser part and the microwave part are respectively arranged on different sides of the experiment cavity. The microwave component and the laser component jointly act on the sample, so that an experimenter can conveniently research mechanism changes of the sample in a microwave and laser coupled environment, and theoretical and data support is provided for subsequent research.

The invention discloses a threshold judgment method for eliminating loess collapsibility through microwave irradiation, relates to the technical field of data prediction and updating, and is used for solving the problem of insufficient collapsibility control effect evaluation means when the structural change is not obvious, and the method comprises the following steps: acquiring and preprocessing a collapsible loess sample to obtain initial physical information data of the collapsible loess sample; microwave irradiation experiment conditions are set, and the collapsibility coefficient change trend of loess under the conditions is calculated. And judging the change of the internal structure according to trend evaluation whether a temperature distribution analysis method is adopted, if the change is weak, further obtaining the microstructure characteristics of the sample and the change of mineral components, and comprehensively evaluating the collapsibility reduction degree. If the reduction degree is high, void ratio parameters are introduced to carry out quantitative analysis on the collapsibility change, and a scanning electron microscope or X-ray diffraction analysis is selected to verify whether the collapsibility change reaches an expected control target or not, so that the stability and safety of loess are ensured.

The invention discloses cold bonding ceramsite and a preparation method and application thereof in pervious concrete.The cold bonding ceramsite is prepared from, by mass, 70-120 parts of solid waste base material, 5-8 parts of activating agent and 5-10 parts of binder, and the solid waste base material is prepared from dredged sludge, fly ash and waste concrete powder. The cold-bonded ceramsite is prepared from the solid waste base material under the conditions of microwave radiation, multi-element activation, granulation and staged maintenance, a high-temperature calcination process is not involved, the solid waste base material is fully utilized, the energy consumption of ceramsite preparation is reduced, solid waste resourceful treatment is realized, the land pressure of landfill is relieved, and the consumption of non-renewable resources is reduced. The prepared cold-bonded ceramsite is applied to the preparation process of the pervious concrete, the obtained pervious concrete has high strength, freeze-thaw resistance and salt corrosion resistance, and the comprehensive performance is remarkably improved.

The invention discloses a flow-type fluorescence detection method and system based on a zero field. The method comprises the following steps: when a target material specifically bound with a nano-diamond mark flows through a detection area of a sample flow channel, detecting the target material; by controlling at least one of the intensity, the frequency and the on-off of the microwave field, the NV color center in the nano-diamond emits a fluorescence signal with the intensity changing periodically; the magnetic field intensity of the detection area meets the zero field condition, the excitation light module is used for exciting the NV color center of the detection area of the sample flow channel, the microwave radiation module is used for providing a microwave field for the detection area of the sample flow channel, and a microwave radiation signal provided by the microwave field has a fixed frequency; the light detection module collects a fluorescence signal at a preset collection frequency; and the data processing module judges whether the target object contains the to-be-detected biomolecules according to the fluorescence signal. According to the technical scheme provided by the embodiment of the invention, the detection sensitivity of the fluorescence detection method is improved.

The invention provides an in-situ modification method for a binder of a lithium battery recycled negative electrode material and a graphite negative electrode material prepared by the same, and relates to the technical field of lithium battery negative electrode material recycling. The modification method comprises the following steps: mixing recovered binder-containing negative electrode material powder with an acid solution, and stirring to obtain a mixed solution; oxidizing the mixed solution by adopting a composite oxidant of persulfate and ozone to degrade the binder to obtain an oxidized solution I; carrying out microwave irradiation treatment on the oxidation liquid to obtain oxidation liquid II; and filtering, washing, drying and carbonizing the oxidation liquid II to obtain the regenerated graphite material. The invention provides an efficient and environment-friendly graphite negative electrode regeneration and upgrading integrated scheme, and high-valued recovery and performance improvement of the waste graphite negative electrode are realized by innovatively combining a multi-stage process of acid dissolution, catalytic oxidation, microwave enhancement and carbonization modification.

A sensor chip structure (600) design based on a solid-state quantum spin sensing system, a manufacturing method, and a supporting related device. The sensor chip structure (600) is a diamond-based magnetic field and temperature sensing chip manufactured on the basis of a micro-nano processing technique, and comprises: a microwave radiation structure, a diamond NV center material, a laser diode, a heat dissipation structure, an optical filter (7), and a photodetector (6) which are manufactured on an insulating substrate.

The invention discloses a high-power microwave waveguide slot antenna array, and aims to solve the problem that a rectangular waveguide slot antenna cannot radiate at an extreme temperature. The antenna is composed of a vacuum window sealing power divider, a separation waveguide, N groups of flanges, N bent waveguides and N high-power microwave rectangular waveguide slot antennas with dielectric covers. The vacuum window sealing power divider carries out power division on microwaves and then inputs the microwaves into the separation waveguides, the separation waveguides input the N groups of microwaves into the N rectangular waveguide slot antennas with the dielectric covers through the N groups of flanges and the bent waveguides, and then the microwaves are radiated out. The vacuum window sealing power divider is composed of a power divider main body, a welding cover, a sealing plate and a medium window. The separating waveguide is composed of a connecting plate and a separating plate. The bent waveguide is composed of a vertical waveguide and a horizontal waveguide. The high-power microwave rectangular waveguide slot antenna with the dielectric cover is composed of the dielectric cover, a slotted waveguide, a supporting column and a supporting rod. The invention has the advantages of compact structure and large power capacity, and can be applied in extreme temperature.

The invention discloses a preparation method of a bottom mud derived photocatalytic coating ecological bank protection building block in the field of ecological bank protection materials, which comprises the following steps: dry-mixing and wet-mixing cement, clay, pretreated bottom mud and microspheres, pouring into a customized steel mould in which silica optical fibers are embedded, compacting, moisturizing and curing, and then carrying out standard curing; secondly, the pretreated bottom mud reacts with acid to generate a metal oxide precursor, the metal oxide precursor is compounded with nitrogen-doped carbide, microspheres are added to prepare a composite catalyst, and the composite catalyst is sprayed on the surface of a base body in a layered mode after ultrasonic dispersion to form a photocatalytic coating; performing plasma treatment on the quartz optical fibers, performing latticed arrangement, dispersing the tail ends in a fan shape, and coating fluorescent powder and curing resin to form a light guide conversion layer; and finally, performing microwave irradiation on the cured building block to strengthen interface bonding and catalytic activity. According to the method, the problem that the coating falls off is solved through high-valued utilization of the bottom mud, efficient degradation of pollutants by the photocatalytic coating, optical fiber light guide enhanced light utilization and microsphere materials, and the resource utilization efficiency and environmental benefits are remarkably improved.

The invention belongs to the technical field of battery materials, and mainly relates to a method for preparing porous carbon microspheres through microwave induction of high-entropy alloy-petroleum coke and application. The method comprises the following steps: performing low-temperature plasma activation treatment on crushed and sieved petroleum coke powder to obtain activated petroleum coke powder; mixing and reacting the activated petroleum coke powder with a salt solution containing at least five transition metals, and performing freeze drying to obtain a high-entropy alloy-petroleum coke composite material precursor; the high-entropy alloy-petroleum coke composite material precursor is subjected to microwave radiation treatment in an inert atmosphere, and a carbonized precursor of a spherical structure is obtained; and performing high-temperature activation treatment on the carbonized precursor with the spherical structure in an activation atmosphere, and performing acid pickling and drying to obtain the porous carbon microsphere material. According to the method, the porous carbon microsphere material with high specific surface area, high microporosity and excellent conductivity is prepared through plasma activation, multi-metal complexation, microwave radiation and high-temperature activation treatment, and can be applied to a negative electrode material of a lithium ion battery.