86results about How to "Not dangerous" patented technology

The invention discloses a synthesis method of synthesizing florfenicol. The synthesis method comprises the following steps: L-threo-(p-(methylsylfonyl) phenyl) serine ethyl ester which is used as raw material is processed by the protection by a protecting group, configurational transition, hydrolyzation, acetylation, re-protection, deoxidation, fluorination, and pre-hydrolyzation, so that the florfenicol is obtained, wherein, the protecting group R is one of benzoyl chloride, phthalic anhydride, cyanophenyl, and allyl compounds; the configurational transition is performed when sodium alcoholate or sodium methoxide exists. The raw material which is used in the method is a byproduct which is generated during the process of preparing thiamphenicol, is easy to get in the market, and is inexpensive; the technological operation is simple, the cost is low, the yield rate is high, and the synthesis method has industrialized value.

The invention relates to an environment-friendly plant source disease-resistant growth promoting agent and a preparation method of the environment-friendly plant source disease-resistant growth promoting agent. According to the plant source disease-resistant growth promoting agent, a dandelion extract, a ginkgo biloba extract and a burdock oligosaccharide-copper complex are used as main components and are mixed with monopotassium phosphate or potassium nitrate, magnesium sulfate, zinc sulfate, ferrous sulfate, boric acid and copper sulfate serving as large nutrient elements, medium nutrient elements and micronutrient elements; and the plant source disease-resistant growth promoting agent is prepared by compounding, chelating and fully stirring. Combining nutrition and disease resistance into a whole, the plant source disease-resistant growth promoting agent is wide in spectrum resistance; and by improving the immunity of a crop, the health of the plant is increased, the disease resistance of the plant is increased, pesticide application amount is reduced, the yield and the quality of the crop are improved, the performance is stable and the environment is friendly.

The invention relates to a synthetic method for Tildipirosin. The method comprises the synthetic steps of 23-hydroxy-20-piperidyl-5-O-mycaminoseyl-tylolactones, and 23-sulphonate-20-piperidyl-5-O-mycaminoseyl-tylolactones. The reaction yield of the method is high, and the conversion rate of each step of the reaction is up to more than 80%; and the purity of the product is high, and is up to more than 98.2%. The main raw material of the method is tylosin, the reaction reagent is the normal reagent which is easily obtained in the market and is cheap, and does not need to be stored in the ultralow temperature. The method is simple and safe in operation, does not need the devices in high temperature and high pressure, and has no risk. The method is capable of effectively solving the completeness of the reactant conversion, avoiding the column chromatography isolation for the intermediate product and the environment pollution, recovering the triphenylphosphine oxide of the byproduct, shortening the reaction period, improving the yield of the product, and reducing the production cost, and has the industrialized application value.

The functional environment friendly metal deoiling, derusting and antirusting fluid is prepared with polyoxyethylene alkyl ether, sodium dodecyl sulfate, 1.3-dibutyl thiourea, hexamethylidyene tetraamine, zinc dihydrogene phosphate, phosphoric acid, sodium butylnaphthalene sulfonate, sodium sulfosuccinate, triethanolamine, sodium bicarbonate, tartaric acid and 1.3-diethyl sulfourea in certain weight proportion, and through dissolving, diluting with water, mixing to react, and filtering. It has the synergistic effect of the components to deoil, derust, phosphorize, deactivate and antirust metal surface, no harm to human body and no environmental pollution.

The invention belongs to the medicine category, and in particular discloses a mild moxibustion plaster. The mild moxibustion plaster comprises the following components in parts by weight: 40-50 parts of blumea oil, 20-30 parts of indometacin, 30-45 parts of heating element, 5-10 parts of medical rubber and 2-5 parts of back lining cloth, wherein the heating element comprises reduced iron powder, active carbon, saline water and far infrared ceramic powder on a ratio by weight of reduced iron powder to active carbon to saline water to far infrared ceramic powder as (8-14):(3-6):1:(5-8). According to the mild moxibustion plaster disclosed by the invention, the moxibustion method is combined with plasters, so that a mild moxibustion plaster is developed; and the mild moxibustion plaster is used for moxibustion treatment, therefore the disadvantages of inconsistent moxibustion time, less human body absorption and large raw material waste and the like in the conventional moxibustion method are completely overcome.

The invention relates to a firefighting guide illumination line comprising a continuously luminous strong electroluminescence line (1), a PVC transparent plastic layer (2), an electroluminescence line(3) and a flexible wire cable (4) parallel to the electroluminescence line (3), wherein the PVC transparent plastic layer (2) is arranged outside the strong electroluminescence line (1); the electroluminescence line (3) and the flexible wire cable (4) are arranged in the strong electroluminescence line (1) which is wound on a rotatable wire coil wheel (6) with a stand (5); the center of the wirecoil wheel (6) is provided with charging batteries (7) and a driving controller (8) and is connected in series with one end of the strong electroluminescence line (1); the power-on strong electroluminescence line (1) can continuously illuminate when being electrified, and the wire coil wheel (6) is used to randomly withdraw and release the strong electroluminescence line (1). The firefighting guide illumination line is mainly applied to underground places, such as markets, subways, coal mine, and the like for rescue and guides refugees to evacuate towards a destination direction.

The invention discloses a windproof flowerpot. The lower wall of a pot body is fixedly connected with a fixed seat; the inner wall of the pot body is hermetically and glidingly connected with a holding plate, and the holding plate is annular; the inner bottom part of the pot body is fixedly connected with a fixed tube; an inner ring of the holding plate is hermetically and glidingly connected withthe side wall of the fixed tube; the side wall, adjacent to the bottom end, of the fixed tube is provided with a plurality of communicating holes; the lower wall of the pot body is provided with a suction cup in a communicating manner through a through hole; the inner wall of the through hole is rotatably connected with a rotating tube through a deep groove ball bearing; the rotating tube extendsto the outside of the pot body; a seal ring is arranged between the inner wall of the through hole and the rotating tube; the side wall of the rotating tube is glidingly sleeved with a magnetic ring;viscoelastic fluids fill a space located at the lower end of the holding plate and a space located at the lower end of the magnetic ring in the pot body; and a magnetic piston in heteropole attraction with the magnetic ring is glidingly arranged in the rotating tube. The windproof flowerpot can guarantee that a plant cannot be damaged by strong wind, and further can prevent dust from being blowninto the air, and it is also guaranteed that the flowerpot cannot be damaged by wind.

The invention discloses a safety plug device for power supply, and the device comprises a socket body which is fixedly installed in a wall body, and a plug body which is connected with power equipment through a wire. The socket body is provided with slots in a manner of lateral symmetry, and the outer side end walls of the slots are provided with power supply grooves. The front end walls of the power supply grooves are provided with power supply elastic pieces. The front end face of the socket body is provided with locking stretch-in grooves in a manner of lateral symmetry, and the rear ends of the locking stretch-in grooves are provided with locking grooves which extend towards outer side ends. The rear end face of the plug body is provided with power supply pins in a manner of lateral symmetry, and each power supply pin comprises a lead-in block cooperating with the corresponding slot, and a plug bar which is fixedly disposed on the rear end face of the plug body. Each lead-in block is provided with a longitudinal groove and a lateral groove, wherein the opening of the longitudinal groove faces forwards, and the opening of the lateral groove faces an outer side end. The lateral grooves are communicated with the longitudinal grooves. The plug bars stretch into the longitudinal grooves, and the lateral grooves are slidingly provided with telescoping arms. The inner side end of each telescoping arm is provided with an extruding inclined surface and a jacking surface, wherein each extruding inclined surface stretches out of the corresponding lateral groove, and stretches into the corresponding longitudinal groove to abut against an extruding action surface of the rear end of the plug bar.

A dynamic indication guiding illuminating line comprises a multi-core electroluminescent line, a multi-output electroluminescent line drive and a power source. The dynamic indication guiding illuminating line is characterized in that dielectric layers are coated on the surfaces of three continuous metal wires which are spirally wound to form a multi-core electrode, an electroluminescent layer is coated on the surface of the multi-core electrode for one time, a transparent conducting layer which is in continuous contact with an outer flexible electrode is coated outside the electroluminescent layer, and transparent plastic is used for sealing to form the multi-core electroluminescent line. When the dynamic indication guiding illuminating line is used, the multi-core electroluminescent line, the multi-output electroluminescent line drive and the power source are in series connection to form directional flowing luminescence. The guiding illuminating line for firefighting is mainly applied to rescuing at places such as markets, subways, coal mines and fields to guide trapped people to evacuate according to target directions.

The invention discloses an automatic welding manipulator. The automatic welding manipulator comprises a machine frame base, wherein a machine frame left vertical plate and a machine frame right vertical plate are arranged on the machine frame base in parallel; a lifting mechanism is arranged between the machine frame left vertical plate and the machine frame right vertical plate, the lifting mechanism is connected to a bin body rear seat, a first air cylinder is arranged above the bin body rear seat, and the first air cylinder is connected to a top cover; a welding rod storage bin is connectedto the bin body rear seat, a clockwork spring disc is arranged inside the welding rod storage bin, an annular rail is arranged on the periphery of the clockwork spring disc, and a clockwork spring isarranged inside the clockwork spring disc; a push rod is arranged outside the clockwork spring disc, one end of the push rod is connected to the clockwork spring, the other end of the push rod is arranged on the annular rail, and a welding rod is arranged on the annular rail; and a fixed support is arranged on the side surface of the welding rod storage bin, a rotating mechanism is arranged on the fixed support, a conveying mechanism is arranged on the rotating mechanism, a mechanical claw and a supporting frame are arranged on the conveying mechanism, and a welding gun is fixed on the supporting frame. According to the automatic welding manipulator, the automatic welding can be realized, and the automatic welding manipulator has the advantages of being high in efficiency, low in cost andsafe to operate.

The invention relates to an optical fiber underwater intelligent fence system and application thereof. The system includes a monitoring terminal, a transmission optical cable and an optical fiber intelligent fence; the monitoring terminal is located above water; the optical fiber intelligent fence is located under water; the transmission optical cable is connected with the monitoring terminal and the optical fiber intelligent fence; and the optical fiber intelligent fence comprises a vibration sensing optical cable subsystem, a fence and a fixing device, wherein the vibration sensing optical cable subsystem is fixed on the fence and is a passive device. Parts of the optical fiber underwater intelligent fence system are entirely composed of passive devices, and therefore, when the system operates, no current passes through, and no electromagnetic waves are radiated, and the system will not be subject to electromagnetic interference, and electric leakage, short circuiting, heat emission and the like can be avoided, and the system can work for a long term in water and is free of risks. The monitoring terminal which is located above water solely requires low-power electric energy supply; the parts under water transmit optical signals all through optical fiber devices and optical fiber cables, and therefore, energy loss is small, and the parts can work under water for a long term in a range of tens of kilometers without external energy supply required.

The invention relates to an anticoccidiosis compound, which is shown as the following structural formula (I), and also relates to a preparation method of the anticoccidiosis compound. Through the anticoccidiosis compound, the problem of drug resistance of the conventional anticoccidiosis medicine can be effectively solved, and an important role is played in treatment of domestic animals, particularly chicken coccidiosis infection. A main raw material used in the invention is extremely readily available on market and is cheap; and the compound has the characteristics of simple process operation, no danger, low cost, high yield and the like, is suitable for amplification and industrial production and has industrial value.

The invention discloses a platform plate with a winch. The platform plate comprises a plate main body and is characterized in that one end of the plate main body is provided with the winch with a rope, the other end of the plate main body is provided with a hanging buckle for connecting the tail end of the rope, and the winch extends out of and accommodates the rope.

The invention relates to a pulse diversion cavitation generator. The pulse diversion cavitation generator comprises a pulse cavitation nozzle, an abrasion-resistant throat neck, an abrasion-resistant protecting sleeve and a flow stabilizing pipe. The abrasion-resistant throat neck is of a hollow cylindrical structure and internally provided with riflings. The abrasion-resistant protecting sleeve is arranged outside the abrasion-resistant throat neck in a sleeving mode and fixedly connected with the abrasion-resistant throat neck. The pulse cavitation nozzle is fixedly connected with one end of the abrasion-resistant protecting sleeve. The other end of the abrasion-resistant protecting sleeve is fixedly connected with the flow stabilizing pipe. The pulse cavitation nozzle, the abrasion-resistant throat neck and the flow stabilizing pipe are communicated in sequence. According to the pulse diversion cavitation generator, the pressure of cleaning jet flow is small and only is 10-16 MPa; the generator is not dangerous for a user, and the safety of personnel and dirt removing can be ensured; meanwhile, it is ensured that oil paint and an antifouling and anticorrosion coating on a processed surface cannot be damaged.

The invention discloses an environment-friendly and energy-saving steam cleaning machine, which relates to the technical field of steam cleaning, and comprises a main machine and a storage device, a water tank is arranged in the main machine, a water pump is arranged at one end in the water tank, an electromagnetic water inlet valve is arranged at the right end outside the water tank, and a metalcasting is arranged at one end outside the electromagnetic water inlet valve; a metal pipe is arranged in the metal casting, an electric heating pipe is installed outside the metal pipe, a pressure sensor is arranged at the end, close to the water tank, of the metal pipe, and a safety pressure valve is installed at the end, away from the water tank, of the metal pipe. During work, the water pump conveys high-pressure water flow to the metal pipe, the electric heating pipe rapidly heats the metal pipe, the water flow is rapidly converted into high-pressure steam in the metal pipe, the high-pressure steam flows to the steam spray gun through the high-pressure steam conveying pipe, and the high-pressure steam can be sprayed out towards a muzzle as long as a worker opens a trigger switch of asteam spray gun, and high-pressure steam flow or high-pressure steam-water mixed jet flow capable of cleaning a vehicle body is generated.

The invention discloses a water soluble composition for wrapping foodstuff. The main component of the composition is water. The content of wet weight of alginate in the casing is 4 to 5%; and the content of wet weight of guar gum in the casing is 1.4 to 1.8%.

The invention discloses a gas-solid mixed rocket engine free of an initiating explosive device. The gas-solid mixed rocket engine is composed of a spark plug, an engine shell, an injector, a rupture disc, a solid propellant, a jet tube, a high-pressure air chamber and a combustion chamber. The engine uses the spark plug for ignition, and then potential safety hazards caused when an ignition head with an initiating explosive device is used for ignition are avoided. High-pressure air can make full contact with carbon powder through the injector, and it can be guaranteed that the carbon powder isreliably ignited when the spark plug is started so as to break the rupture disc; and high-temperature products generated by combustion of the carbon powder and air enter the combustion chamber to ignite the solid propellant and maintain continuous combustion of the solid propellant, and generated high-temperature gas is jetted through the jet tube to generate thrust. The rupture disc is adopted to seal gas in the high-pressure air chamber before the engine works, and then circuit design in the engine can be reduced. High-pressure gas is not dangerous during transportation and storage; and bydirectly placing the solid propellant in the combustion chamber, the space utilization rate of the engine can be increased, and the safety of the engine can be guaranteed.

The invention discloses a robotic simulation panda. A framework shaped like a Chinese character 'wang' is arranged in a trunk, and the framework is provided with a vertical frame, an upper frame, a middle frame and a lower frame, wherein the vertical frame is vertical, and the upper frame, the middle frame and the lower frame are transverse. The left end and the right end of the upper frame are each provided with an upper electric cylinder which is transverse, the end of a telescopic rod of each upper electric cylinder is connected with a transverse rotating shaft in a sleeving mode, and each telescopic rod is provided with a rotating motor. The left end and the right end of the middle frame are each provided with an abdominal cavity support with an arc-shaped section, and each abdominal cavity support is arranged vertically. A surface layer is of a four-layer structure and comprises a plastic skeleton, an elastic foam layer, a three-dimensional rubber net and a surface fur layer from inside to outside. The robotic simulation panda can vividly simulate habits of a real panda in the aspects of actions, sound and handfeel tactile senses, achieves simulation of behaviors of simple panda introduction, conversation with people, cub breeding and the like, can satisfy curiosity of children about intimate contact with the panda, can provide child experience in places such as zoos, and has a safe and vivid simulation effect.

The invention refers to a method for controlling a brushless, electronically commutated electric motor, a main AC voltage being rectified into an intermediate circuit direct voltage and this direct voltage being fed by an intermediate circuit containing an intermediate circuit capacitor to an inverter which is controlled by a motor control means for feeding and commutating the electric motor whereby the intermediate circuit direct voltage is monitored in respect of its voltage level and is compared with a predetermined limiting value and, on reaching or exceeding the limiting value, the intermediate circuit direct voltage is limited to the predetermined limiting value by clocked disconnection and reconnection.

The invention discloses a water area rescue dry-type rescue garment which comprises a waterproof breathable layer, a wear-resistant layer, a chloroprene rubber layer and an elastic rope. The wear-resistant layer is sewn on the inner side of the waterproof breathable layer, the chloroprene rubber layer is sewn at the neckline and cuff positions of the waterproof breathable layer, and the elastic rope is sewn at the waist position of the waterproof breathable layer. A heating assembly is also included and is sewn on the inner side of the wear-resistant layer, and the waterproof breathable layer, the wear-resistant layer and the heating assembly jointly form a dry type rescue garment main body. In actual use, the water area rescue dry-type rescue garment can perform self-heating, continuously provide heat for rescue workers and ensure that the body temperature always meets the body movement requirement, meanwhile, the anti-collision capacity of the chest of a user can be improved, the user can carry a life jacket without holding the life jacket by hand, search and rescue work is not hindered, and when buoyancy provided by the rescue garment is insufficient, rapid inflation can be carried out so that the buoyancy of the rescue garment is improved, and the rescue requirements of rescue workers are met.

The invention discloses a method for resource utilization and innocent treatment of etching waste liquid containing copper in the circuit board industry. The method comprises the following steps of: pre-treating acid etching waste liquid containing the copper and alkali etching waste liquid containing the copper; performing a neutralization reaction of the pre-treated etching waste liquid to generate copper sulphate and basic copper chloride, recovering the copper from remaining wastewater containing low-concentration copper through absorption by adopting an ion exchange technology after mostcopper is recovered, and obtaining a regenerated copper chloride raw material after resin desorption; and evaporating remaining copper-free wastewater, i.e. ammonia nitrogen wastewater, by using a multi-effect evaporator to recover an ammonium chloride product which can be used as a regenerated etching liquid, and discharging the remaining wastewater up to the standard. By the method, the pollution problem of heavy metal ions to the environment is solved, and cyclic utilization of the waste liquid for production of other products can be realized, so the resources are saved and the environmentis protected.

The invention discloses a body-building vehicle braking device. The device comprises a regulation device provided with a display screen and an electromagnetic control braking component which is arranged on the periphery of a flywheel and movably connected to a frame, wherein the regulation device is connected with the electromagnetic control braking component in a wired or wireless mode, a regulation part is installed on one side of the motor, and an outer ring of the flywheel is a metal ring coaxial with the flywheel; the electromagnetic control braking component comprises an electromagneticcontrol base movably connected to the frame, a U-shaped groove with the depth not smaller than the width of the metal ring is formed in the side, facing the flywheel, of the electromagnetic control base, and the U-shaped groove is internally provided with a magnet; the regulation device regulates the motor, acts on the regulation part and then acts on the electromagnetic control braking component,and the U-shaped groove of the electromagnetic control base acts on the flywheel. Accordingly, the motor is regulated by means of the regulation device to make the motor act on the regulation part, and the U-shaped groove acting on the electromagnetic control base in the electromagnetic control braking component acts on the flywheel, so that the barking effect is achieved, the structure is simple, and operation is convenient.

The invention discloses a preparation method of an adsorption material. The preparation method comprises the following steps: (1) providing a porous adsorption material; (2) immersing the porous adsorption material in a sodium thiosulfate solution with the concentration of 5g / L to 10g / L for 20min to 60min; (3) draining the porous adsorption material adsorbed by the sodium thiosulfate, and drying at 37 DEG C to 40 DEG C for 24h to 48h. The invention further discloses a water sample collection bag with the adsorption material. The preparation method disclosed in the invention has a simple preparation process and the whole process is finished at a low temperature and low pressure and is not dangerous; the sodium thiosulfate solution does not need to be prepared every time that a water sample is taken and large-batch production of the adsorption material can be realized; the sodium thiosulfate in the water sample collection bag exits in a solid form and can be stored for a long period; the bag is small in size, light in weight and convenient to carry, so that the bag is convenient to carry when people go out to sample in a large batch; only a bottle cap needs to be opened when the bag is used; the bag can be used immediately when being taken and does not need to be prepared in advance, so that the bag is convenient to utilize.

The invention discloses an insulation monitoring system for an electric vehicle, which comprises a high voltage monitoring circuit, a controller, an insulation detection device and a battery pack module, wherein the high voltage monitoring circuit comprises the controller, a sampling resistor, a capacitor, a transformer and an insulation resistor located between a high voltage battery and a body ground; and the controller comprises a digital / analog converter, a signal processing module and a logic judgment processing module. In the case of use, the controller continuously generates PWM wave signals, the detection device monitors the amplitude changes of sampling point signals caused by insulation resistance changes in real time, the monitoring result is processed by a comparator, the signal processing module and the logic judgment processing module, and insulation is judged. The monitoring program is simple, the adjustable ability is strong, the safety is high, the adaptability is strong, and the control circuit can be well protected.

The invention relates to a method for controlling a vehicle (1) by means of a remote control (2). Said method involves the steps of recording a directional input by a user via an input device (5) of the remote control (2), transmitting the recorded directional input from the remote control (2) to a control unit (3) of the vehicle (1), sensing at least some areas of the surroundings of the vehicle (1) by means of a surroundings-sensing system (4a, 4b, 4c, 4d), having the control unit (3) determine a desired steering angle of the vehicle (1) in accordance with the recorded directional input, and limiting the desired steering angle of the vehicle (1) in accordance with the sensed surroundings of the vehicle (1).

The invention discloses an automatic welding manipulator. The automatic welding manipulator comprises a rack base; the rack base is provided with a rack left vertical board and a rack right vertical board in parallel; a lifting mechanism is arranged between the rack left vertical board and the rack right vertical board and is connected with a bin rear base; a cylinder is arranged above the bin rear base; the output end of the cylinder is connected with a top cover; a welding bar storage bin is arranged in front of the bin rear base; a spring plate is arranged inside the welding bar storage bin; an annular track is arranged on the periphery of the spring plate; a spring is arranged inside the spring plate; a pushing rod is arranged outside the spring plate; one end of the pushing rod is connected with the spring; the other end of the pushing rod is arranged on the annular track; a welding bar is arranged on the annular track; a fixing support is arranged on the side face of the weldingstorage bin; a guide mechanism is arranged on the fixing support; and a welding gun fixed to the fixing support is arranged above the guide mechanism. The automatic welding manipulator can achieve automatic welding, and has the advantages of high efficiency, low cost, and safe operation.

An assembly-type lamp (1) and an electrical connection device therefor. Said lamp (1) comprises an attachable female socket (11) and an attachable male socket (12). When said male socket (12) is mounted onto said female socket (11), two electrically conductive pins (124) of said male socket (12) pass through at least one slot (1110) of said female socket (11) and, once the at least one slot (1110) rotates and locks into place, said pins electrically connect to two electrical contacts (113) of the female socket (11). The assembly-type lamp (1) is further provided with fastening structures (112, 1221) to fasten the female socket (11) to the male socket (12). Said structures are used to prevent the male socket (12) and the female socket (11) from rotating and detaching from one another, thus preventing the lamp (1) from falling when subjected to slight external impact, and thereby ensuring the female socket (11) is firmly attached to the male socket (12).

The invention relates to a synthetic method of 5-nitraminotetrazole, and belongs to the chemical synthesis field. The synthetic method comprises the following steps: firstly, nitrifying 5-aminotetrazole by a mixture of nitric acid and sulfuric acid; and then neutralizing excessive acid by alkaline substances such as sodium carbonate and the like; finally, purifying the 5-nitraminotetrazole by an organic solvent to obtain the purified 5-nitraminotetrazole. The synthetic method has the advantages of safe and reasonable process, short reaction time, simple steps, high yield, low production cost, no application and production of toxic substance, and simpler post-processing process.

The invention discloses a silicene film prepared by mechanical peeling and the application of the obtained silicene film in batteries. The two-dimensional nanomaterials are physically covered on the passivated silicon surface of the metal film. After high-temperature treatment, the silicon element diffuses into the two-dimensional The interface between the nanomaterial and the metal film is lowered to room temperature, and the sample is dispersed in a solvent liquid with a surfactant. Polar molecules are very easy to enter the interface between the metal film and the substrate material, and the metal film and the substrate are increased by ultrasonic stirring. Material friction, peeling two-dimensional nanomaterials and silicene from silicon substrates to obtain silicene films. The present invention utilizes mechanical stripping to peel off the silicene thin layer in the liquid phase through physical action, which protects the physical properties of the silicene material, avoids the working environment of high vacuum and high-risk gas, and avoids highly toxic organic reactants The use of two-dimensional nanomaterials can be used repeatedly, which reduces the cost and has broad market application value in the field of solar cells.