70results about How to "High adsorption properties" patented technology

The invention discloses a preparation method of a fuming section of a granular heat-not-burn cigarette. The cigarette comprises a filter tip section, a cooling section and a fuming section; the fumingsection is of a closed structure sealed by breathable paper, the length of the fuming section ranges from 15 mm to 20 mm, aroma-attached particles are arranged in the fuming section, and aroma-attached particles prepared by adopting natural animals and plants such as turf, cuttlebone, coconut shells and washed tobacco stems as raw materials are arranged in the fuming section. The closed heating non-combustion cigarette smoke generation section is adopted, due to the fact that the adsorption characteristic of the porous particles is obviously higher than that of the tobacco sheets, the smoke generation agent carrying capacity of the particle type smoke generation section can be 2-3 times that of the sheet type smoke generation section, the fragrance slow release effect is better, moistureabsorption is not likely to happen, and the stability is better.

The invention provides a method and a system for treatment and recycling of feces and waste from livestock and poultry culture. The system comprises a waste water organic matter accumulating system, an anaerobic fermentation system, a sludge return system and a waste water recycling system. The method comprises the following steps: based on the characteristic that active sludge can highly absorb organic matters in waste water, accumulating the organic matters in the waste water from livestock and poultry culture; generating methane by anaerobic fermentation of sludge enriched with high-concentration organic matters together with dried feces so as to realize the recycling of biomass energy; and further treating low-concentration waste water after enrichment of organic matters by using constructed wetland and a sterilization method to meet water quality standards and to realize zero discharge of waste water. In addition, part of sludge in a sedimentation tank and biogas residues generated by anaerobic fermentation are returned and aerated in a regeneration tank to recover the high absorption activity so as to circularly absorb the organic matters in the waste water, thereby realizing recycling of the sludge and the biogas residues. The method and the system realize the treatment and recycling of feces and waste from livestock and poultry culture as well as recycling of biomass in the waste water and zero discharge of the waste water, and have the advantages of simple structure, low investment and operation cost, high treatment efficiency and the like.

The invention relates to a polyaniline / carbon nano tube adsorbent having multi-layer porous structure and a preparation method thereof, which belong to the technical field of novel nano materials and environmental protection and aim to improve adsorption capacity of polymer polyaniline to organic dye in water. According to characteristics that the specific surface area of the carbon nano tubes is large, the length-diameter ratio thereof is high and the carbon nano tubes are easy to twine to stack to form a porous structure, the carbon nano tubes are used as supporting frames, and polyaniline is prepared by the static interface polymerization process, and then covers the surfaces of the carbon nano tubes so as to form a porous polyaniline / carbon nano tube compound material. Since the polyaniline / carbon nano tube compound material has the multi-layer porous structure and the large specific surface area, adsorption efficiency and capacity of polyaniline to organic dye are improved effectively. In addition, the polyaniline / carbon nano tube adsorbent can be prepared by simple processes under conditions easy to be controlled, has high adsorption performance and excellent environment-friendly property, and can be applied to the fields of industrial dye waste water treatment and the like.

The invention relates to a high-cadmium-adsorption filamentous fungus Paecilomyces lilacinus XLA, and a preparation method and an application thereof. The preparation method comprises the following steps: 1, weighing a pot experiment soil sample used for heavy metal restoration and having a content of heavy metal cadmium of 50mg / Kg, adding to sterile water with glass beads, oscillating on a constant temperature shaking table, allowing an obtained solution to stand, taking an obtained supernatant, and carrying out serial dilution; 2, coating a Martin flat containing 60mM of cadmium with different dilution rates of dilutions, allowing the obtained flat to stand for a moment, inverting on a constant temperature culturing box, and culturing; 3, carrying out streaking purification of single colonies growing on the flat, coating the Martin flat with the obtained single colonies, and culturing; 4, carrying out separating screening to obtain the Paecilomyces lilacinus XLA stably resisting cadmium, and preserving on a PDA inclined plane for later use. The Paecilomyces lilacinus XLA is preserved and has a preservation number of CCTCC NO:M2012135. Viable and non-viable organism of the XLA can efficiently adsorb and remove the heavy metal cadmium in heavy metal sewage, so the XLA has the advantages of low cost and simple technology, and has an efficient restoration potential of heavy metal polluted soil and water.

The invention discloses a preparation method of a rice and wheat straw active carbon ecological building material for PM2.5 adsorption and radiation prevention. The preparation method comprises the following steps: 1, uniformly mixing raw materials; 2, weighing the raw materials; 3, hotly pressing a blank; 4, post-treating the blank. According to the preparation method, rice and wheat straws are utilized for making active carbon powder, so that the pollution of the rice and wheat straws on the environment is alleviated, the utilization rate of the rice and wheat straws is increased, and a preparation process for the active carbon ecological building material is simplified; the prepared active carbon ecological building material is firm and unlikely to be damaged, has relatively high adsorption property, can effectively adsorb PM2.5 particles, and has very high radiation-proof performance; the ecological building material can be applied to numerous fields of decorative materials, building materials, artware materials, wastewater treatment materials, air purification materials and the like.

The invention discloses a silver nanoparticle modified carbon nanotube-egg membrane composite surface enhanced Raman scattering (SERS) substrate as well as a preparation method and application thereof. The SERS substrate is composed of a carbon nanotube loaded on an egg membrane and silver nanoparticles modified on the carbon nanotube, wherein the carbon nanotube is 0.5-2mu m long and is 30-50nm in diameter, and sizes of the silver nanoparticles are 5-10nm. The preparation method comprises the following steps: dissolving egg shell in an acetic acid solution to obtain an egg membrane, ultrasonically processing the egg membrane in an ammonium solution to obtain alkalified egg membrane, then dispersing a carbon nanotube processed by carboxylation in de-ionized water and ultrasonically processing to obtain a carbon nanotube solution, and ultrasonically processing the alkalified egg membrane in the carbon nanotube solution to obtain the egg membrane loaded with the carbon nanotube on the surface; and finally, sputtering silver on the egg membrane in a sputtering instrument to obtain a target product. The SERS substrate disclosed by the invention can serve as an active substrate for surface enhanced Raman scattering; and through a laser Raman spectrometer, content of rhodamine or parathion-methyl or polychlorinated biphenyl PCB-3 or bovine serum albumin attached on the substrate is measured.

The invention discloses a preparation method of a magnetic stripping type montmorillonite nanocomposite material for wastewater treatment, and belongs to the technical field of the preparation of nanocomposite materials. The method comprises the following steps: modifying a large quantity of carboxyl on the surface of montmorillonite, adopting a home position chemical reaction for introducing magnetic nanoparticles between montmorillonite layers to obtain a stripping type structure, and combining the magnetic separation property of ferroferric oxide and high adsorption characteristics of carboxyl modifying montmorillonite for organic cation dye and heavy metal ions to obtain a magnetic stripping type montmorillonite nanocomposite adsorbing material which is capable of magnetic separation and is strong in adsorption capacity. The preparation technology of the preparation method disclosed by the invention is simple, and the condition can be controlled; the prepared magnetic stripping type montmorillonite nanocomposite material is low in cost, easy to separate, high in adsorption characteristics and excellent in environmental friendly characteristics; the adsorption efficiency and the adsorption capacity for the organic cation dye and the heavy metal ions can be remarkably improved, so that the preparation method is suitable for the fields of industrial wastewater treatment and the like.

The invention relates kinds of method for intensifying filter effictiveness with filter-media modification and dynamic casting of medicine in treatment of water and sewage water, the filter-media modification and dynamic casting of medicine intensifying filter effictiveness method. This invention can be through with the steps as follows: (1) before filtering, decline negative electricity in surface of filter media, or increase modified ability of positive electricity in surface of filter media; (2) in procedure of filtering, cast medicine for intensifying filter efficiency continually. The step of (1) can germinate the particle, in surface of which contains the elements such as Iron, Manganese, Calcium, Silicon, Magnesium, Aluminum, and so on. So it increases electric potential to the surface of filter media, improves absorbability of impurity particle and makes this granule be prone to depositing in the surface of filter media. The step of (2) increases electric potential to the surface of colloidal particle in water by casting medicine for intensifying efficiency continually in filtering procedure, so that it can increase absorbability of colloidal particle in the surface of filter media. The organic association with couple of devices can increase absorbability of colloidal particle in the surface of filter media in water, and intensify removal ability of turbidity in water.

The invention provides a preparation method of polyaniline / sepiolite nanocomposite fibers for wastewater treatment, which belongs to the technical field of preparation of polymeric nanocomposites. The preparation method comprises the following steps of: dispersing sepiolite into water to obtain sepiolite solution; adding hydrochloric acid and aniline monomer to the sepiolite solution to obtain aniline monomer solution; then slowly dropping hydrochloric acid solution in which oxidant ammonium persulfate is dissolved into the aniline monomer solution, reacting for 12 to 24 hours, and collecting reaction products; filtering, washing and drying the reaction products; and then grinding and dispersing the products to obtain the polyaniline / sepiolite nanocomposite fibers. The preparation method provided by the invention is simple in preparation technology and controllable in condition; and the prepared polyaniline / sepiolite nanocomposite fibers are low in cost, have the characteristics of high adsorption and environment friendliness, are capable of markedly improving the adsorption efficiency and the adsorption capacity of polyaniline to organic anionic dye and heavy metal ions, and are suitable for the fields of industrial wastewater treatment and the like.

The invention discloses a preparation method and application of a magnesium-loaded acid modification expanded vermiculite composite adsorbing material. Acid modification expanded vermiculite is obtained through the acid modification of the expanded vermiculite; or after acid modification expanded vermiculite is further loaded with straw biochar, the modified vermiculite is loaded with a magnesiumsource for the pollution control of black and odorous water; the application achieves the synchronous recovery of nitrogen and phosphorus by adopting a struvite crystallization and precipitation method, improves the reaction efficiency and purifies water; the recycled product of the magnesium-loaded acid modification expanded vermiculite composite adsorbing material is controlled-release fertilizer with the excellent performances, is useful for farmland crop production; and the efficient utilization of the product is realized.

The invention discloses high-cadmium-adsorption filamentous fungi penicillium chrysogenum J-5 as well as a preparation method and an application thereof. The preparation method comprises the following steps of: firstly weighing and putting 10g of cadmium polluted soil into 90mL of sterilized normal saline, vibrating on a constant-temperature shaking table, standing, taking supernatant liquid and diluting; secondly coating different dilution factors of diluent on a Martin rose-bengal flat plate containing 10mM of cadmium, and inversely placing the flat plate in a constant-temperature incubator for cultivation; thirdly, carrying out streaking and purification on microorganisms which grow on the flat plate, and then coating the organisms on the Martin rose-bengal flat plate containing cadmium again for cultivation; fourthly, after isolation and screening, storing a bacterial strain having stable resistance capacity on cadmium on a PDA (Potato Dextrose Agar) inclined plane. The obtained filamentous fungi penicillium chrysogenum J-5 has high tolerance and high adsorption property on multiple metals; the raw materials are easy to obtain and low in cost. The bacterial strain has relatively high fixation capacity on heavy metals in environments, can be used of reducing the biological toxic property of the heavy metals and is suitable for the in-situ remediation of large-area polluted soil.

The invention discloses a manganese activated amorphous iron-based adsorption agent preparation method. The method includes steps: (1) weighing sodium hydroxide and montmorillonite powder, dissolvinginto water, and mixing and stirring to obtain alkaline pulp; (2) drying the alkaline pulp in a drying oven to obtain alkaline mineral powder; (3) weighing ferrous sulfate and iron sulfate, mixing in water, and hermetically stirring to dissolve completely to obtain mixed iron-based solution; (4) weighing sodium hydroxide and potassium permanganate, and mixing in water to dissolve to obtain manganese-doped alkaline liquid; (5) mixing alkaline mineral powder with the mixed iron-based solution, and hermetically stirring to obtain iron adsorption pulp; (6) mixing the manganese-doped alkaline liquidwith the iron adsorption pulp, and hermetically stirring to obtain manganese activated amorphous iron-based pulp; (7) adding the manganese activated amorphous iron-based pulp into a vacuum drying oven, vacuumizing and drying to a constant weight, and grinding to obtain a manganese activated amorphous iron-based adsorption agent. By adoption of the adsorption agent prepared according to the method, high capacity in adsorption of chromium, arsenic and antimony ions in water in pH of 3-12 is realized.

Provided are a modified nanometer bamboo charcoal mask and a manufacturing method thereof. The modified nanometer bamboo charcoal mask comprises an inner mask and an outer mask, wherein the inner mask is provided with a dismounting opening, and a filer layer is arranged in the dismounting opening. The inner mask and the outer mask of the mask and a filer layer base plate are made of an electrets melt-blowing polypropylene fiber non-woven fabrics, the filer layer uses chitosan as a capsule wall material, microcapsules are made from modified nanometer bamboo charcoal powder, beewax is used as an adhesive for arranging the microcapsules on the non-woven fabrics. The modified nanometer bamboo charcoal powder are modified by adopting nanometer titanium dioxide. The modified nanometer bamboo charcoal mask is green, environment-friendly, safe and efficient, has the broad-spectrum antibacterial effect and has good washability due to the fact that the beewax is used as the adhesive to arrange the microcapsules on the non-woven fabrics.

The invention discloses a method for preparing a sulfur-doped hypoxia type TiO2 photocatalyst. Sodium silicate serves as a silicon source, titanium sulfate serves as a titanium source, sulfate radicals serve as a doped sulfur source, sodium sulfide serves as a reducing agent, first a silica gel immobilized TiO2 / TiS2 copolymer is prepared through an ultrasound copolymerization method, the mixing amount of the sulfate radicals is changed, a product precursor is synthesized by in-situ symbiosis at 140-160 DEG C, and finally a silica gel immobilized sulfur-doped hypoxia type TiO2 photocatalyst (S / hypoxia type TiO2) material is prepared through sintering at 650-800 DEG C under the protective atmosphere of N2. Obtained results indicate that the goals of O vacancy defect and S effective doping are achieved successfully, and good conditions are created for photocatalysis red shift of the TiO2 photocatalyst and efficient utilization of solar light. Besides, the product is high in purity and good in crystal condition.

The invention belongs to the field of polymer material processing, and particularly relates to a cellulose nanofibril reinforced polyurethane fiber as well as preparation method and application thereof. The preparation method of the cellulose nanofibril reinforced polyurethane fiber is divided into two steps that: in a first step, thermoplastic solid polyurethane is dissolved in a solvent, a certain concentration of a polyurethane solution is prepared, and cellulose nanofibrils are added to adjust mass ratio of the cellulose nanofibrils and the thermoplastic polyurethane, a polyurethane spinning solution is prepared after vacuum defoaming; in a second step, spinning, curing, draft matio and drying conditions are controlled, and the cellulose nanofibril reinforced polyurethane fiber is prepared by wet spinning. The the cellulose nanofibril reinforced polyurethane fiber not only has good elongation, but also greatly improves tensile strength, and resulting clothes are light and soft, comfortable to wear and have a good hand feeling.

The invention relates to an integrated harmless dead livestock treatment system and a process thereof. The integrated system comprises a drying device, an incinerating device, a pyrolysis device, a dust collection device, a tail gas treatment device and a circulating fan, wherein the air outlet of the incinerating device is connected with the air inlet of the drying device, the drying device is connected with the pyrolysis device and is connected with the dust collection device and the tail gas treatment device in sequence; the air outlet of the pyrolysis device is connected with the incinerating device. The system adopts a water wash and urea / H2O2 wet process as well as the desulfurization and denitration process and biological carbon adsorption process for combined treatment of the dried tail gas, not only is the easily water dissolved component absorbed, the usage of chemical reagent in subsequent treatment steps reduced, the temperature of reaction liquid lower and the work safety improved, and also SO2, H2S, NOx and NH3 gases can be removed simultaneously, ammonium sulfate can be recycled and no secondary pollution is caused.

The invention which belongs to the nanomaterial preparation field concretely relates to a nesting doll-shaped manganese oxide nanocrystalline grain composite particle and a preparation method thereof. The nesting doll-shaped manganese oxide nanocrystalline grain composite particle is characterized in that: the shape of the particle is spherical, the particle size is 0.7-7mum, and the BET specificsurface area is 20-310m<2> / g; and the structure of the particle has a shell-core nesting doll shape, the shell and the core are respectively composed of manganese oxide nanocrystalline grains, and surfaces of the shell and the core are full of mesopores. The nesting doll-shaped manganese oxide nanocrystalline grain composite particle has the advantages of spherical shape, controllable dimension, good fluidity, shell-core nesting doll-shaped structure, realization of a case that surfaces of the shell and the core are full of mesopores, large specific surface area, and no need of a surfactant, convenience and easy implementation, and low cost of the preparation process.

The invention provides preparation and application of a magnetic conductive polymer / sepiolite / humic acid composite microsphere, and belongs to the technical field of preparation of polymer nano composite materials. The preparation method comprises the steps of firstly mixing an aqueous solution of sepiolite with a humic acid aqueous solution, and adjusting the pH value of the mixed solution, so asto prepare a sepiolite / humic acid composite particle aqueous solution, mixing the sepiolite / humic acid composite particle aqueous solution with a magnetic ferroferric oxide cyclohexane solution, conducting shearing at a high speed to prepare a Pickering emulsion, then adding an aniline(pyrrole) monomer, conducting uniform dispersion, then slowly dropwise adding a hydrochloric acid solution in which an oxidizing agent ammonium persulfate is dissolved into the emulsion, collecting a reaction product, and conducting filtering, washing and drying, so as to obtain the magnetic polyaniline(polypyrrole) / sepiolite / humic acid composite microsphere. The preparation method is simple in preparation process and controllable in conditions, and the prepared magnetic polyaniline(polypyrrole) / sepiolite / humic acid composite microsphere has high adsorption characteristics and excellent environmental friendliness, and is suitable for the fields of industrial wastewater treatment and the like.

The invention discloses a plant polysaccharide aerogel heating non-combustion flavor smoke generating material and a preparation method thereof. The flavor smoke generating material is composed of a plant polysaccharide aerogel flavor smoke section core material and a paper tube wrapping the plant polysaccharide aerogel flavor smoke section core material, the plant polysaccharide aerogel flavoredsmoke section core material is prepared by mixing 30-50 parts by weight of plant raw material particles, 10-50 parts by weight of a smoke generating agent, 5-10 parts by weight of essence and fragrance, 1-10 parts by weight of an aerogel framework material and 30-100 parts by weight of water and then carrying out sol-gel and vacuum freeze drying. The material is prepared in a vacuum freeze dryingmode, the interior of the material is loose and porous, and the plant raw material particles, the smoke agent and the essence and flavor mixed material are evenly distributed in the aerogel frameworkmaterial. When the flavor smoke section is heated, heat can be uniformly diffused to the periphery in the material of the flavor smoke section, so that smoke and fragrance are slowly released more uniformly, and the overall stability is better.

The invention discloses a method for preparing a dye adsorbent from waste bricks and an application of the adsorbent in adsorption of dye contaminants from polluted water. The method at least comprises the step of soaking waste brick granules with an acidic solution. According to the method and the application, the specific surface area of the waste bricks treated by the method is remarkably increased, and the adsorption capacity is remarkably higher than that of unmodified waste brick powder; meanwhile, an isoelectric point of a waste brick granule raw material is lowered, and the acid-pickled waste brick granules easily show electronegativity in wastewater, so that the adsorption characteristic to cationic dyes is improved; the method has the advantages that wastes are treated with wastes, equipment and processes are simple, environmentally friendly and the like, thereby being applicable to treatment of cationic and acidic dye wastewater and having a relatively large popularization prospect.

The embodiment of the invention discloses a preparation method of a soil heavy metal repair agent. The preparation method comprises the steps that a biological by-product is roughly screened and crushed; after a catalyst is added, high-temperature pressurized digesting is conducted; after a reaction agent is added, high-temperature expansion, low-temperature fermentation, dehydrating and drying are conducted, and thus a preliminary product is prepared; and the preliminary product is crushed again and subjected to purging filtering, and thus a final product is formed. An expansion preparation device of the soil heavy metal repair agent comprises a high-pressure compartment provided with a feeding inlet and a discharging outlet, and a material flat-crushing mechanism mounted in the high-pressure compartment, a fluidifying material-transferring bed is arranged between the material flat-crushing mechanism and the feeding inlet, the discharging outlet is connected with an expansion cavity,the side wall of the near-bottom of the high-pressure compartment is connected with a steam generating device through an air delivery pipeline, the top of the high-pressure compartment is connected tothe steam generating device through a circulating pipeline, and a pressure relief valve is arranged on the circulating pipeline. The soil heavy metal repair agent has a long-term stable passivation repair effect, secondary pollution is avoided, soil fertility can be increased, and phytonutrients are formed advantageously.

A method for refining alkaline treatment fluid for semiconductor substrates and a refining device are provided that are capable of refining all kinds of alkaline treatment fluid used for treating semiconductor substrates for a variety of purposes, to an ultrahigh purity, particularly Fe concentrations to ppq levels, and which use an absorbing and purifying means with excellent chemical resistance and mechanical strength. Specifically provided are a refining device and a method for refining alkaline treatment fluid for semiconductor substrates, which are means for refining alkaline treatment fluid for treating semiconductor substrates for a variety of purposes when producing semiconductor substrates or semiconductor devices, and whereby alkaline treatment fluid is brought in contact with a silicon carbide crystal surface of an absorbing and purifying means and made to flow into gaps in, for example, an absorption plate laminate (2) wherein both surfaces are CVD silicon carbide surfaces, and metal impurities are made to attach to the silicon carbide crystal surface and removed.

The invention discloses a flame-retardant cable material. The flame-retardant cable material comprises the following raw materials in parts by weight: 60-85 parts of polypropylene, 10-35 parts of SEBSresin, 2-8 parts of LDPE, 5-15 parts of maleic anhydride grafted polypropylene, 0.2-1.0 part of pentaerythritol stearate, 1-6 parts of magnesium stearate, 20-35 parts of light calcium carbonate, 15-25 parts of magnesium hydroxide, 5-10 parts of modified hydrotalcite, and 10-20 parts of modified ammonium polyphosphate. The prepared cable material has good mechanical properties and flame-retardantproperties through synergistic reinforcement and flame retardancy.

The invention provides an environment-friendly bamboo charcoal mask and a manufacturing method thereof. The mask comprises an inner mask body and an outer mask body, the inner mask body is provided with a detachment opening, a filtering layer is arranged in the detachment opening, the inner mask body, the outer mask body and the filtering layer are all made of electret melt-blown polypropylene fiber non-woven fabrics, chitosan serves as a capsule wall material of the filtering layer, nanometer bamboo charcoal powder serves as a core material to be made into micro capsules, and the microcapsules are arranged on the non-woven fabrics through beewax serving as adhesive agents. The chitosan, the bamboo charcoal powder and the beewax are all natural materials, the obtained product is environmentally friendly, safe and efficient and has a broad-spectrum antibacterial function, the microcapsules are arranged on the non-woven fabrics through the beewax serving as the adhesive agents, and good washability is achieved.

The invention provides mesoporous BiOCl / Bi2O3 composite powder as well as a preparation method and application thereof. A Bi2O3 micro-crystal is prepared by adopting a hydrothermal method, and HCl is added into the prepared Bi2O3 to carry out an ultrasonic reaction, so that BiOCl is compounded with the Bi2O3. The mesoporous BiOCl / Bi2O3 composite powder is prepared by combining the hydrothermal method, a hydrochloric acid immersing method and an ultrasonic synthesis method. The method has the advantages of short reaction time, a few of flows, simple operation process, moderate reaction conditions, relatively low cost, environmental friendliness and the like, and is a simple and green BiOCl / Bi2O3 powder preparation method. The whole shape of the mesoporous BiOCl / Bi2O3 composite powder prepared by the method is of a mesoporous spherical shape; the mesoporous BiOCl / Bi2O3 composite powder has a relatively high adsorption property on organic pollutants; the photocatalysis effect of pure-phase Bi2O3 powder can be effectively improved; and the mesoporous BiOCl / Bi2O3 composite powder has good research values and application prospects.

The invention discloses organic fertilizer capable of reducing soil heavy-metal pollution and a preparation method of the organic fertilizer and relates to the field of fertilizer. The organic fertilizer is prepared from corncobs, cow dung, wormcast, candy pomace, peanut meal, animal urine, plant ash, coconut root-bark, a composite enzyme agent and a composite modifier. By the arrangement, nutrient substances needed by plants can be provided, heavy metals in soil can be adsorbed and passivated, absorption and concentration of the plants on the heavy metals are reduced, quality and use value of the fertilizer are improved, and low cost is achieved; after the organic fertilizer is used for growing crops in the soil seriously polluted by the heavy metals, no excessive heavy metal phenomenon appears in the detected plants, and safety of agricultural products is effectively improved.

The present invention relates to a lithium recovery device and recovery method. The lithium recovery device of the present invention includes: a first electrode; a second electrode; and a power supply device. In the lithium recovery device of the present invention, since lithium is attached to an adsorbent of the first electrode by applying a current to the first and second electrodes in a state in which the first and second electrodes are immersed in a lithium-containing fluid, the first electrode including a carrier made of a stainless steel material in a form of an iron mesh or perforated sheet and having a surface coated with the adsorbent containing a manganese oxide, and the second electrode facing the first electrode, it is possible to increase a size of the device and have excellent energy efficiency and economic feasibility.

The invention discloses a hollow-structure nano tungsten oxide wire prepared through in-situ growth of graphene oxide. The hollow-structure nano tungsten oxide wire is prepared by mixing a certain amount of graphene oxide, a precursor compound containing tungsten, absolute ethyl alcohol and deionized water. Compared with a conventional high-pressure reaction kettle preparation method adopting a polytetrafluoroethylene lining, the hollow-structure nano tungsten oxide wire disclosed by the invention has the advantages that the energy consumption is lower, the cost is lower, industrial production investment is low, the product cost is low, and industrial batch production can be conveniently realized.

The invention provides a fast detecting method of a vitamin K1 used for preventing coupling hemorrhage after vaccine injection.The method comprises the specific operation steps of preparing electrodes, utilizing the electrodes to carry out testing, setting up a standard curve and preparing and measuring samples.The modified electrode and the unmodified glassy carbon electrode are adopted to carry out the electrochemical reaction of the vitamin K1, it is found through comparison that the current response of the modified electrode to the vitamin K1 is far larger than that of the unmodified glassy carbon electrode, it shows that the response of nanometer titanium oxide to the vitamin K1 has a certain sensibilization effect, due to the porous structure of the nanometer titanium oxide membrane electrode, the specific area is increased, accordingly, the adsorption characteristic is enhanced, and more vitamin K1 can be enriched.According to the method of using the modified electrode to detect the vitamin K1 in serum, the serum does not need to be subjected to complex pretreatment, it only takes 100 s to detect each sample, detecting is convenient and fast, and the requirement for detecting a large number of the serum samples can be fully met.

The invention discloses a hygienic material with one highly-absorbent side and one water-repellent side. The hygienic material comprises a graphene-based fiber layer and a water-repellent fiber layerwhich are formed in a composite way. The invention further discloses a production device of the hygienic material with one highly-absorbent side and one water-repellent side. The production device comprises a graphene-based fiber web production line, a water-repellent fiber web production line, a bottom web curtain, a spunlace machine, a dryer and a winder; the graphene-based fiber web productionline and the water-repellent fiber web production line are connected with the spunlace machine through the bottom web curtain, and the dryer and the winder are arranged behind the spunlace machine insequence. The hygienic material with one highly-absorbent side and one water-repellent side has the moisture preservation, antisepsis and adsorption functions.