Method for preparing oxidized graphene base supramolecular hydrogel for selectively adsorbing dyes in waste water

The invention relates to a method for preparing an oxidized graphene base supramolecular hydrogel. The preparation method comprises the following steps: (1) preparing an oxidized graphene water solution; (2) preparing an alpha-cyclodextrin water solution doped with oxidized graphene; (3) preparing the oxidized graphene base supramolecular hydrogel. The prepared oxidized graphene base supramolecular hydrogel can selectively adsorb dyes and has an excellent absorbing effect to the cationic-type dyes containing many Pi-type conjugated radicals and hydrogen bonds; according to the preparation method, the dosage of oxidized graphene is less, the preparation cost is low, and the dye adsorbing rate can be adjusted by changing the doped amount of oxidized graphene.

Method for preparing silicon-germanium pyroelectric material

The invention is a Si-Ge system thermoelectric semiconductor preparing method, belonging to the field of thermoelectric material technique. And it combines vacuum electron beam packaging technique with hot isostatic pressing (HIP), uses solid Si powder, Ge powder and various doping agents as raw materials, and adopts high purity Ar gas as pressure transfer medium in the HIP and prepares high performance Si-Ge alloy system thermoelectric semiconductor, where the Si-Ge alloy system is of a diamond structure. And its advantages: accurate composition control; compact and nonsegregated structure; high compactness.

Preparation method of TiO2/Sb2O3/PSAC heterojunction sterilization composite material

The invention relates to a preparation method of a TiO2/Sb2O3/PSAC heterojunction sterilization composite material, which comprises the following steps: 1) sequentially adding a cationic surfactant, tetrabutyl titanate, antimony trichloride or antimony pentachloride into deionized water, and stirring until the solution is pure white; (2) putting the FOSS crucible with the coal pitch-based spherical activated carbon into a high-pressure reaction kettle with concentrated nitric acid, heating, washing with deionized water until the FOSS crucible is neutral, and naturally air-drying; 3) putting the dried coal pitch-based spherical activated carbon into a pure white solution, stirring, finally adding sodium hydroxide, stirring, putting into a high-pressure reaction kettle, heating and keeping for a period of time; and after natural cooling, carrying out centrifugal treatment, washing and drying. Through a hydrothermal one-step in-situ method, the adsorption performance and the photocatalytic ...

含水含蜡原油低温快速破乳剂及其制备方法

A low-temp high-speed demulsifier for the water and wax contained crude oil is prepared through the block copolymerization between phenolamine resin, epoxy propane and epoxy ethane to obtain star branched polyether, reacting on water-soluble cross-linking agent, and adding additive.

Efficient recycling process for heat of raw gas high-temperature section of coke oven

The invention relates to an efficient recycling process for heat of a raw gas high-temperature section of a coke oven. The efficient recycling process comprises the following steps of: introducing raw gas of the coke oven into a sleeve type steam heat exchanger in a vertical tube sleeve type quenching waste heat boiler to exchange heat with water, and reducing the temperature to be 350 DEG C or lower after exchanging heat; introducing boiler feed water into a low-temperature heat exchanger to exchange heat until the temperature of the boiler feed water is 210 DEG C or higher after performing desalting and deoxygenization on the boiler feed water, and introducing the boiler feed water subjected to heat exchange into the vertical tube sleeve type quenching waste heat boiler to generate high-temperature high-pressure saturated vapor; and overheating high-temperature high-pressure saturated vapor, and feeding the overheated high-temperature high-pressure saturated vapor to a high-pressure power ...

Preparation method of coal pitch-based three-dimensional graded porous carbon for negative electrode of lithium ion battery

The invention relates to a preparation method of coal pitch-based three-dimensional graded porous carbon for a lithium ion battery cathode, which uses sodium carbonate and silicon dioxide as double templates and coal pitch as a carbon source to prepare the coal pitch-based three-dimensional graded porous carbon, and specifically comprises the following steps: 1) taking 3-9g of medium-temperature coal pitch, putting the medium-temperature coal pitch into a beaker, and heating to 170-200 DEG C under a silicone oil bath condition; adding a template agent, stirring at a constant speed, and cooling to room temperature to obtain a black solid mixture; and heating in a tubular furnace, cooling to room temperature, washing off the template, washing to be neutral, and drying. The method has the advantages that the pore channel structure in the material is greatly improved by microcosmically regulating and controlling the surface appearance and the pore structure of the carbon material and forming ...

Female rabbit restraint device for artificial insemination

The invention discloses a female rabbit restraint device for artificial insemination. The female rabbit restraint device mainly comprises buckets made of iron sheets, a rotary shaft, an upper support and a lower support. Opening are obliquely and upwardly formed in the buckets made of the iron sheets, the two buckets made of the iron sheets are reversely arranged and are fixed onto the lower support by the aid of the rotary shaft, and the diameters of opening ends of the buckets made of the iron sheets are larger than the diameters of inner sections of the buckets made of the iron sheets. When the female rabbit restraint device is operated, a restraint person places a to-be-inseminated female rabbit into one of the buckets made of the iron sheets while the head of the female rabbit faces inwardly, an insemination person who stands on the outer side of the female rabbit restraint device turns the corresponding bucket made of the iron sheets, and the to-be-inseminated female rabbit rotates ...

Oil displacement system for improving recovery factor after polyalcohol drive and preparation method thereof

The invention relates to a flooding system used for improving the recovery factor after polymer flooding and a preparation method thereof, which belongs to the technical field of enhanced recovery of oil fields. A surfactant with unlike charges and a polymer react with each other to produce a high-activity compound; and the high-activity compound is mixed with a non-ionic surfactant to produce the novel flooding system. The novel flooding system solves the problems of the poor temperature resistance and the inorganic high valence cation resistance of the prior flooding system. The novel flooding system has the advantages of high viscocity, ultra-low interfacial tension, low feeding quantity and so on. The system has wide application prospects in oil fields to apply the technology for improving the oil recovery factor.

Breeding method and special fodder for forks

The invention discloses a breeding method for forks. The method is characterized by comprising A, selecting a shed building structure; B, setting the breeding density reasonably; C, purifying animal drinking water, and controlling the water quality; D, sterilizing fork carriers and performing sterilization after shed leaving; E, using special fodder fro breeding on account of different physiological cycles of forks, wherein the special fodder for hybridization preparation, the hybridization period, the pregnancy lactation period and the breeding period are used for each different physiological cycles and comprise dried fish oriented animal fodder, vegetables, cereals, water and additional fodder. The invention further discloses the special fodder for each physiological cycle. The special fodder is free of toxic and side effects, scientific and reasonable in formula and simple in preparation method. By means of the method and the special fodder, the bred fur-bearing animal forks have the ...

Full-automatic multi-layer solar cell module laminator

The invention discloses a full-automatic multi-layer solar cell module laminator. The laminator comprises a frame, a plurality of layers of laminating workbenches arranged in the frame in a superposed mode, and a lifting mechanism which is used for controlling displacement of the plurality of laminating workbenches, wherein a circulating conveying device is arranged between the laminating workbenches in each layer; screws are arranged on two groups of frames on two sides of the laminating workbench; a speed reducing motor is connected with and fixed on the frame through the top of screw; a nut is arranged on each screw, and is connected with an air cylinder or a hydro-cylinder; the screw is matched with the laminating workbench through the nut; and a liftable input device and a liftable output device are arranged on two ends of the laminating workbench respectively. By the full-automatic multi-layer solar cell module laminator, solar cell modules can be laminated at the same time, thelaminating ...

Method for producing siloxane by modifying surface of carbon black

The invention discloses a method for producing siloxane by modifying the surface of carbon black. A lithium ion battery conductive agent with good stability and conductivity is prepared. The method disclosed by the invention comprises the following steps: adding tetrahydrofuran and the carbon black into a reactor, wherein the mass ratio of the carbon black to tetrahydrofuran is 1 to 4.4; adding diethylamine and trimethylchlorosilane into the reactor, wherein the mass ratio of trimethylchlorosilane to diethylamine is 6 to 1; sealing the reactor; reacting for 20-24 hours under the stirring of a rotor of a magnetic stirrer: carrying out suction filtration and drying on a reaction product to obtain a siloxane product; and detecting the siloxane product by adopting an infrared spectrometer. According to the method disclosed by the invention, hydroxyls on the surface of the carbon black can react with trimethylchlorosilane to form siloxane; and the structure property of the carbon black is improved ...

Concentration degree monitoring method and system, storage medium and electronic equipment

The invention provides a concentration degree monitoring method and system, a storage medium and electronic equipment. The concentration degree monitoring method comprises the following steps: acquiring electroencephalogram signals of a subject in a concentrated state and a non-concentrated state; generating a concentration degree monitoring model corresponding to the subject based on the electroencephalogram signal; and acquiring a concentration level index of the subject based on the concentration monitoring model. According to the concentration degree monitoring method and system, the storage medium and the electronic equipment, concentration degree monitoring is achieved through the concentration degree monitoring model of the subject, and the accuracy of concentration degree monitoring is greatly improved.

Leak detecting equipment

The leak delection equipment includes container with upper cover, solid seal material positioned between upper cover and container, leak detector with suction pipe, leak detection gas source placed outside of the container and seal gripper connected with product to be detected, gas collecting cavity and leak detection hole.

Oil displacement system for improving recovery factor after polyalcohol drive and preparation method thereof

Preparation method of intelligent supramolecular aquagel for detecting formaldehyde in interior decoration and wastewater

The invention relates to a preparation method of an intelligent supramolecular aquagel for detecting formaldehyde in interior decoration and wastewater, which comprises the following steps: (1) weighing alpha-cyclodextrin powder, and adding ultrapure water to prepare an alpha-cyclodextrin water solution; (2) adding a Tyloxapol liquid, and adding ultrapure water to prepare a Tyloxapol water solution; and (3) taking the alpha-cyclodextrin water solution and Tyloxapol water solution, adding ultrapure water until the alpha-cyclodextrin concentration in the gel is 90-130 mg.mL<-1> and the Tyloxapol concentration is 15-50 mg.mL<-1>, carrying out ultrasonic dispersion, and standing. The preparation method is simple, and the used raw materials have favorable biocompatibility and are friendly to application environments. The intelligent supramolecular aquagel has the advantages of low cost and no toxic byproducts.

Phenylcarbinol kearny ester compounds

The invention discloses a group of benzyl alcohol Kearny ester compounds, which have low moisture and good stability and are the pro-drug of a carnitine with a completely new structure.

Anti-radiation vital energy tonifying electuary and preparation method thereof

The invention discloses an anti-radiation vital energy tonifying electuary. The electuary is prepared mainly from the following raw materials in parts by weight: 35-55 parts of puer tea, 12-18 parts of astragalus membranaceus, 8-12 parts of medlar, 6-8 parts of fried jujube kernel, 7-10 parts of cape jasmine, and 8-12 parts of radix pseudostellariae. The electuary has the characteristics of good anti-radiation effect and convenience in portability, can play the effect of quick radiation resistance to whole body under the action of oral administration, can be used for strengthening immunity, reducing blood sugar and beautifying, and has a main function of tonifying qi and nourishing blood. Furthermore, puer tea which is common in local areas is used as a main raw material, so that the electuary is a traditional Chinese medicinal preparation which has tea fragrance, can resist radiation, and can be used for tonifying qi and blood when being prepared from the puer tea and other medicinal materials ...

Phenylcarbinol kearny ester compounds

The invention discloses a group of benzyl alcohol Kearny ester compounds, which have low hygroscopicity and good stability and are the prodrugs of a carnitine with a completely new structure.

Method for rapidly and efficiently propagating highbred mulberry

The invention provides a method for rapidly and efficiently propagating a highbred mulberry, relating to the technical field of mulberry seeding and garden building. By applying the modern agricultural technology, top clipped residual branches are subjected to hard branch hotbed cuttage in the spring period so as to rapidly take root and survive, and then are implanted in a land for seeding or garden building. The invention has rapid seeding and garden building, low cost, high cuttage rooting rate and land implantation survival rate, wide sources of cutting woods, easy and simple technical process and convenience for popularization and application.

Lactation promoting preparation for postpartum mink, preparation method and application thereof

The invention discloses a lactation promoting preparation for a postpartum mink. The preparation comprises the following components in parts by weight: 8-15 parts of pangolin, 10-20 parts of cowherb seed, 8-15 parts of prepared rehmannia, 8-15 parts of astragalus membranaceus, 8-15 parts of angelica and radix codonopsis, and 5-12 parts of tetrapanax papyriferus. The preparation method comprises the following steps: putting the components in a marmite, pouring 100-150 parts by weight of water, decocting for 20-40 minutes, filtering decoction dregs, and separating to obtain decoction. According to the lactation method for a postpartum mink, the decoction dregs are filtered and separated to obtain decoction, the decoction is mixed with feed and taken orally by the mink, and a dose of the preparation is for 4 minks. The lactation promoting agent comprises a plurality of traditional Chinese herbal medicinal components, does not have toxic or side effect, and is scientific and reasonable, simple ...

Preparation method of mixed nano rGO (at) Bi (at) CNT sodium ion battery negative electrode composite material

The invention relates to a preparation method of a mixed nano rGO (at) Bi (at) CNT sodium ion battery negative electrode composite material, which comprises the following steps: 1) dissolving Bi (NO3) 3 in ethylene glycol, adding 3-aminopropylmethoxysilane, and stirring; 2) adding carboxyl-containing multi-walled carbon nanotubes into the suspension, and magnetically stirring; (3) transferring the obtained suspension into polytetrafluoroethylene, and putting the polytetrafluoroethylene into a high-pressure reaction kettle at the constant temperature of 160-200 DEG C; 4) dispersing graphene oxide in a mixed solution of deionized water and absolute ethyl alcohol, dissolving 0.05-0.15 g of the obtained sample in the mixed solution, performing ultrasonic stirring, performing centrifugal treatment, and drying; and 5) keeping the temperature in a tubular furnace at 600-1000 DEG C, and cooling to room temperature. The invention has the advantages that: a multi-layer mixed nano structure is adopted ...

Preparation method for bismuth-tellurium nano-porous thermoelectric material

A preparation method for bismuth(Bi)-tellurium(Te) nano-porous thermoelectric semiconductor material is disclosed, belonging to the technical field of the thermoelectric material. The preparation method comprises the following step: Bi-Te-based nano-powders Bi[2-x]Sb[x]Te[3-y]Se[y] (x=0-1.9, y=0-0.5) are placed in alcohol solution with a pore-forming agent sufficiently dissolved therein, in orderto be mixed by a method which combines ultrasonic wave with magnetic suspension agitation, the powders are sintered into bulk material by means of a discharge plasma sintering technology after being dried, and during the sintering, the pore-forming agent is utilized for sublimation and evaporation at the particular temperature so that the bulk material can form nano-sized pore structure therein inthe process of sintering in order to form the nano-porous material. The Bi-Te-based alloy belongs to rhombohedral crystal system structure. The preparation method has the advantages of simple preparation ...

Preparation method of coal pitch-based spherical activated carbon composite material with surface loaded with Bi2S3/Bi2O3

The invention relates to a preparation method of a coal pitch-based spherical activated carbon composite material loaded with Bi2S3/Bi2O3 on the surface. The preparation method comprises the following steps: dissolving Bi (NO) 3.5 H2O in a mixed solution of HNO3 and DMF; cH4N2S is dissolved in deionized water; uniformly mixing the two solutions under violent stirring; transferring the mixture into a high-pressure kettle, passing through an air dry oven, washing after reaching the room temperature, and drying in vacuum to obtain Bi2S3/Bi2O3; and mixing the obtained surface-modified Bi2S3/Bi2O3 with deionized water to obtain a dispersion liquid, putting the acidified coal pitch-based spherical activated carbon into the dispersion liquid, and carrying out magnetic stirring, vacuum filtration and drying to obtain a finished product. The preparation method has the advantages that a Bi2S3/Bi2O3 loading layer on the surface of the prepared carbon sphere is uniform, the carbon sphere has effective ...

Method for preparing shaped coal for coking by adding industrial discarded binding agent

The invention discloses a method for preparing shaped coal for coking by adding an industrial discarded binding agent. The method is used for preparing the shaped coal with low cost. According to the technical scheme, the preparation method comprises the steps of synthesizing a binding agent: mixing phenol residual oil and remnant residual oil, and stirring a mixture so as to form a uniform binding agent for the shaped coal; preparing a shaped coal raw material: adding the binding agent for the shaped coal to coal charges, and stirring at the temperature of 80-150 DEG C; preparing the shaped coal by pressing: feeding the shaped coal raw material into a coal shaping machine, and rolling by using the coal shaping machine so as to obtain the shaped coal for coking. The preparation method has the advantages that the preparation cost of the shaped coal can be effectively reduced by using discarded residual oil materials of coking plants and petrochemical plants as the binding agent for the shaped ...

Preparation method of nitrogen-sulfur co-doped Bi/gelatin carbon lithium ion battery negative electrode composite material

The invention relates to a preparation method of a nitrogen-sulfur co-doped Bi/gelatin carbon lithium ion battery negative electrode composite material. The preparation method comprises the following steps: 1) dissolving gelatin in deionized water, and stirring to obtain a solution A; 2) dissolving Bi (NO3) 3.5 H2O in dilute nitric acid, and stirring to obtain a solution B; 3) dissolving (NH4) 2S2O8 in deionized water to obtain a solution C; 4) slowly adding the solution B into the solution A, continuously stirring, adding the solution C into the mixed solution of the solution A and the solution B in a stirring state, and continuously stirring; drying in a constant-temperature drying box; and after the solution is completely solidified into a solid, performing high-temperature calcination in a nitrogen atmosphere to obtain a final product. The method has the advantages that the cheap and easily available gelatin is used as a carbon source, the cost is greatly reduced, and large-scale production ...

Method for preparing silicon-germanium pyroelectric material

Preparation method for Al-Cr-Ti-Si-Cu multi-principal element laser alloying coating on surface of aluminum alloy

The invention discloses a preparation method for an Al-Cr-Ti-Si-Cu multi-principal element laser alloying coating on the surface of aluminum alloy. The preparation method comprises the following steps: 1) weighing Cr, Ti, Si, Cu and Al powder respectively; 2) mixing the powder weighed in the step 1); 3) preparing a 4% polyvinyl alcohol solution; 4) grinding off the surface of an aluminum alloy plate, and washing the aluminum alloy plate; 5) thickening the powder mixed in the step 2) by virtue of the solution prepared in the step 3), and pre-coating the aluminum alloy plate treated in the step 4) with the thickened powder; 6) irradiating the prefabricated coating on the aluminum alloy plate. According to the preparation method, the coating with high hardness, high corrosion resistance, high oxidation resistance and strong metallurgical bonding force can be formed on the surface of the aluminum alloy.

Leakproof device for ophthalmological irrigation

The utility model provides a leakproof device for ophthalmological irrigation, which is capable of preventing dirty liquid from disorderly flowing when a conjunctiva is irrigated, and improving irrigation effect. The leakproof device comprises two transversely connected eyeshade frames and fixing straps, the fixing straps are connected to the two eyeshade frames respectively, a sealing ring is arranged at the edge position of one side of each eyeshade frame, openings are arranged on the lateral walls of the eyeshade frames close to the sealing rings respectively and are connected with corresponding drainage tubes, and the drainage tubes are respectively communicated with a collector tube. The leakproof device has the advantages of reasonable design, simple structure, convenience in use and the like, and ophthalmological irrigation treatment effect is improved effectively.

Preparation method for bismuth-tellurium nano-porous thermoelectric material

A preparation method for bismuth(Bi)-tellurium(Te) nano-porous thermoelectric semiconductor material is disclosed, belonging to the technical field of the thermoelectric material. The preparation method comprises the following step: Bi-Te-based nano-powders Bi[2-x]Sb[x]Te[3-y]Se[y] (x=0-1.9, y=0-0.5) are placed in alcohol solution with a pore-forming agent sufficiently dissolved therein, in order to be mixed by a method which combines ultrasonic wave with magnetic suspension agitation, the powders are sintered into bulk material by means of a discharge plasma sintering technology after being dried, and during the sintering, the pore-forming agent is utilized for sublimation and evaporation at the particular temperature so that the bulk material can form nano-sized pore structure therein in the process of sintering in order to form the nano-porous material. The Bi-Te-based alloy belongs to rhombohedral crystal system structure. The preparation method has the advantages of simple preparation ...

Restoration device for ecological environment of water body

The invention discloses a water body ecological environment restoration device, and relates to the technical field of ecological environment restoration, the water body ecological environment restoration device comprises a buoyancy plate, and the upper end of the buoyancy plate is fixedly connected with a push-pull assembly. Through mutual cooperation of a motor, a fifth rotating shaft, a Z-shaped rotating rod, a square frame, a pull rod, a piston, a first connecting pipe, a second connecting pipe and an extraction tank, repair liquid in a liquid storage tank can be extracted into a spraying box, and then the repair liquid is sprayed into a water body through the spraying box; in the process, two third rotating rods can be driven to rotate through mutual cooperation of a first L-shaped toothed plate and a first gear, and mixing of the repairing liquid and the water body can be accelerated through rotation of the third rotating rods under the action of a plurality of stirring rods arranged ...