532results about How to "With adsorption" patented technology

The invention provides a preparation method for oxidized graphene-poly-dopamine composite aerogel. The preparation method comprises the following steps that 1, 0.15-0.7 g of dopamine powder is dissolved in 10-18 ml of distilled water, the dopamine aqueous solutions are mixed with 50-60 ml of oxidized graphene aqueous solutions with the concentration of 5-6 mg / ml, and stirring is performed to obtain oxidized graphene-dopamine mixed solutions; 2, 3-9 ml of tris aminomethane buffer solutions with the concentration of 0.1-0.12 mol / L are dropwise added into the mixed solutions while stirring is performed, stirring is continuously performed for 2-2.5 h, and standing is performed to enable the dopamine to be fully polymerized to obtain oxidized graphene-poly-dopamine composite aquogel; 3, after being placed in an environment with the temperature ranging from minus 20 DEG C to minus 10 DEG C to be frozen for 24-30 h, the composite aquogel is processed through freeze drying, and then the oxidized graphene-poly-dopamine composite aerogel is obtained. The method is simple in technology, and the prepared composite aerogel has the advantages of being high in porosity, excellent in adsorptivity, high in strength and the like.

The invention discloses a harmless comprehensive treatment method for cyanide-containing tailing pulp. The method is composed of three steps including pulp concentration, cyanide-degradation pretreatment and oxidation, wherein the step of pulp concentration is implemented as follows: the concentration of pulp is increased to be 50% by using a thickener, and applyin liquid supernatant subjected to thickening is applied to a factory selection process, wherein a thickening principle is implemented as follows: solid-liquid separation is conducted by using gravity settling; the step of cyanide-degradation pretreatment is implemented as follows: a cyanide-degradation drug is put into the pulp subjected to concentration; and the step of oxidation is implemented as follows: oxidation is implemented by using a commonly used oxidation method, and meanwhile, activated carbon is put in the stage of oxidation. Useful cyanides are concentrated and recycled, so that the load of follow-up processing is reduced; through the step of cyanide-degradation pretreatment, the cyanide load of an oxidated part is reduced, cyanides such as ferric-cyanide which are difficult to oxidize are fixed, and an oxidant is saved; pulp can easily reach the standard in the process of oxidation treatment, and is stable; and tailing slag which reaches the standard through processing are common solid wastes.

The invention relates to a cushion living good, and particularly relates to a functional cushion. The cushion comprises a first base layer and a cushion layer arranged above the base layer, wherein a first health-care layer and a second health-care layer are at least sequentially arranged below the cushion layer. The first health-care layer comprises a bamboo charcoal layer and tourmaline particles and / or a negative ion power layer which are arranged in a staggered manner. The cushion layer is provided with a sunken area for accommodating the buttocks, the sunken area accommodates at least one traditional Chinese medicine bag, and traditional Chinese medicines in the traditional Chinese medicine bag at least comprise one or more of chrysanthemum, mint, spina date seeds, negundo chastetree fruitsa or fructus cannabis. The second health-care layer comprises flexible magnetic massage beads and flexible magnetic strips arranged in the circumferential direction of the second health-care layer. The flexible magnetic strips are threaded inside or on the surface of the basic layer through an elastic line. The flexible magnetic strips are fixed on the base layer by way of insertion, coating or adhesion. The cushion provided by the invention can realize a life-preserving manner of comprehensively coordinating health.

The invention relates to montmorillonite or Y molecular sieve composite material and a preparation method thereof. The montmorillonite or Y molecular sieve composite material is obtained through uniformly mixing the montmorillonite particles and the Y molecular sieve gel, and then crystallizing, filtering, washing and drying the mixture. The composite material prepared by the method of the invention has the structural feature of the montmorillonite as well as the Y molecular sieve, and the montmorillonite and the Y molecular sieve are mutualized. The composed montmorillonite or Y molecular sieve composite material is provided with the feature of a small crystal molecular sieve through controlling the synthetic process and condition. The preparation method has simple process and easy separation, and the prepared molecular sieve composite material has good hydrothermal stability. The composite material is mainly used for the preparation of all types of catalysts and adsorbents, and particularly hydrogenation catalyst.

The invention discloses an integral type thermal insulation building, which belongs to the technical field of building engineering. The problem to be solved is to provide the integral type thermal insulation building. The adopted scheme is that the integral type thermal insulation building at least uses one of an inorganic thermal insulation structure layer and an inorganic thermal insulation layer, wherein the inorganic thermal insulation structure layer is formed by combining one or two of inorganic thermal insulation load-bearing concrete and inorganic thermal insulation load-bearing building blocks; and the inorganic thermal insulation load-bearing concrete comprises the following components in a mixing weight ratio (kg / m<3>) of concrete composite light bone admixture to cement to sandto stone to porcelain granule to fly ash to water to concrete admixture of (6-225):(200-800):(300-700):(500-1,600):(150-650):(10-600):(80-400):(0.1-200). The integral type thermal insulation buildingcan be widely applied to the technical field of buildings.

The invention relates to a method for preparing a composite paper base material with functions of adsorbing and degrading organic matters, and an application of the composite paper base material. The material consists of 30 to 50 percent of metal oxide powder, 15 to 35 percent of absorbent powder, 0 to 25 percent of inorganic fiber, 10 to 30 percent of paper pulp and 0.5 to 5 percent of dual retention aid. When the material is prepared, the metal oxide powder, the absorbent powder, the inorganic fiber and the paper pulp are mixed into a suspension liquid with the concentration of between 2 to 8 percent, the suspension liquid is subjected to mediation for 5 to 30min, and added with the dual retention aid to dilute until the concentration is reduced down to 0.5 percent so as to prepare wet paper sheets; the paper sheets are subjected to pressing and drying to prepare the composite paper base material. The composite paper base material prepared is further processed into a paper component, and the paper component is placed in a low concentration volatile organic compound environment to realize continuous photocatalysis degradation. By utilizing the paper base material of the invention, the problems that the cost is high and the pulverization occurs due to the friction between granular materials when the zeolite is used as a carrier to prepare compound catalytic materials are resolved, and the paper base material can also adsorb low concentration volatile organic gases.

The invention discloses a formaldehyde absorbing material which is formed by high-hydrophobicity solid particles and aqueous solutions in a high-speed stirring mixing mode. The stirring speed of high-speed stirring operation is 1000 turns per minute to 12000 turns per minute and the stirring time is 1 minute to 30 minutes. According to the formaldehyde absorbing material, the high-hydrophobicity solid particles are adopted so as to be mixed with the aqueous solutions of substances capable of making a chemical reaction with formaldehyde, after the high-hydrophobicity solid particles and the aqueous solutions are stirred and dispersed at a high speed, the formaldehyde absorbing material of an air pocket water type structure is obtained, the formaldehyde can be absorbed by a solid shell of the material, the aqueous solutions contained in the shell can absorb the formaldehyde as well, a chemical reaction can be conducted between solute in the aqueous solutions and the formaldehyde, and therefore the formaldehyde absorbing efficiency is high. According to the formaldehyde absorbing material, the high-hydrophobicity solid particles and the aqueous solutions are mixed so that the air pocket water type structure can be formed, the contact area between the aqueous solutions and air can be increased, and therefore the formaldehyde absorbing efficiency can be improved.

The invention relates to an end shaft drilling device. The end shaft drilling device comprises a machine frame and a supporting table, wherein a triangular plate is connected to the machine frame, a cam is arranged below one end of the triangular plate, a rotating shaft is arranged below the cam, a rotating shaft is coaxially connected with a rotating disc, the rotating disc can be meshed with thecam, the rotating shaft is connected with a transverse shaft and a supporting shaft through a bevel gear, a supporting disc is fixedly connected to the top end of the supporting shaft, and a collecting box is rotationally connected to the bottom end of the supporting shaft, the other end of the triangular plate is connected with a first fixing block, and the bottom end of the first fixing block is connected with a first supporting plate, the first supporting plate is connected with a sliding rod, the other end of the sliding rod is connected with a drill bit, a supporting spring sleeves the sliding rod, the first fixing block is fixedly connected with a transverse plate, the other end of the transverse plate is connected with a second fixing block, the bottom end of the second fixing block is connected with a push rod, a water bag is fixedly connected to the supporting table, the water bag is connected with a water spraying pipe, and the water spraying pipe is connected with a spray head. According to the device, the problems that the drill bit needs to be moved in a drilling process and iron scraps are not easy to remove due to excessively high temperature are solved.

A mercapto polyaspartic acid-chitosan copolymer used for adsorbing heavy metal, chlorohydrocarbon, organic pigment, dyeing, etc is prepared from cross-linking reaction between polyaspartic acid with amino side chain and chitosan in acidic aqueous solution, and reacting on mercapto carboxylic acid.

The invention discloses a preparation method of biomass coal, which equably mixes the mud of sewage treatment factory, paper mill and alcohol plant and biomass powder, such as active carbon, charcoal or coal in proportion with 10:0.5 to 2:0.5 to 2 and ferments for 3 to 5 days in heap mode. The preparation method of biomass coal can be eventually obtained after molding and insolation or drying, the heat of which can reach 4000 kilocalorie. The preparation method of biomass coal can be easy to learn the control technique, can not only resolve the mud treatment of sewage treatment plants but also make full use of waste biomass. The biomass coal provides flammable renewable sources and also has the advantages of simple production technique, good environmental protection performance, good energy-saving performance, high social benefit, low cost and high economic benefit.

The invention relates to a method for preparing ecological water purification particles mainly from denitrification biological microcapsules and sustained-release carbon sources and effectively solves problems of denitrification microorganism insufficiency of micropollution water, low C / N ratio, poor biodegradability, difficulty in recovery and secondary pollution. The method includes: culturing a microbial strain to obtain denitrification microorganisms; dissolving chitosan into acetic acid solution to obtain chitosan solution; dissolving sodium alginate into water, and adding span 80 to obtain sodium alginate solution; well mixing the sodium alginate solution with the denitrification microorganisms, dropwise adding CaCl2 solution to obtain calcium alginate capsules, and putting the calcium alginate capsules into the chitosan solution to obtain microcapsules through secondary solidifying; putting the microcapsules into sodium citrate solution, and performing interlayer calcium alginate liquefying to obtain biological microcapsules; well mixing hydrophilic materials, pore-forming materials, adhesives, the sustained-release carbon sources and the biological microcapsules to obtain spherical ecological water purification particles, and curing. The method has advantages of rich materials, low cost, freeness of toxicity and harms to microorganisms, recyclability and freeness of secondary pollution.

The invention relates to a ceramic filter element. The ceramic filter element is sintered by adopting kieselguhr, added with attapulgite and bauxite, as a raw material. The invention also relates to a production process of the ceramic filter element. The attapulgite and the bauxite are added on the basis of the kieselguhr serving as a main raw material in the ceramic filter element; the sintered ceramic filter element filters water through mineralization micropores, and can effectively remove particles, suspension and pathogenic bacteria such as escherichia coli, staphylococcus aureus and thelike in the water; and the ceramic filter element simultaneously has an adsorption effect, can strongly adsorb pesticide residues of organic phosphorus and carbamate in the water, and totally meets the requirement on purification of collected rain serving as drinking water in the northwest rural areas. The ceramic filter element is designed aiming at the improved ceramic slurry in the production process, and the ceramic filter element can reach very high filter precision.

The invention relates to a preparation method of chitin film. Chitin is added into combined aqueous solution containing NaOH and urea, the aqueous solution is frozen at low temperature, and unfreezing and stirring to be uniform are carried out, thus obtaining chitin solution. The chitin solution is cast on a glass plate and is subject to high temperature gelation, water is used for washing away residual NaOH and urea in film, so as to obtain chitin wet film, and drying is carried out, thus obtaining the chitin film. Glycerine is taken as plasticizer, so as to obtain the glycerine plasticized chitin film. In the invention, dissolution of chitin, gelation, film-forming and plasticizing are all physical processes, and no chemical reaction is taken place. The film can effectively absorb heavy metal ion and has favourable mechanical properties. The method of the invention is simple, operation is convenient, and no pollution to the environment is produced. The chitin film can have wide application prospect in the fields of tissue engineering support material and sewage treatment.

The invention relates to an electrode for electroreduction of carbon dioxide. The electrode for electroreduction of carbon dioxide is composed of three layers with different functions and formed by successively laminating a substrate layer, an inner CO2 adsorption layer on the substrate layer and an outer catalysis layer, wherein the catalysis layer is composed of a catalyst and a proton conduction agent. According to the electrode in the invention, the concentration of carbon dioxide in the electrode is increased and mass transfer resistance is reduced in virtue of the adsorption layer; a metallic macrocyclic compound is grafted to and defined in a heteroatom-doped carbon nanotube, so the activity of the heteroatom-doped carbon nanotube used as the catalyst is improved; and introduction of the metallic macrocyclic compound further increases the amount of active sites of heteroatom-doped carbon, so the catalytic activity of the catalyst is improved. A preparation process for the electrode is simple and can be easily implemented.

The invention discloses a method for preparing compound biological activity sterilizing fluid, which comprises the steps: a proper amount of surface active agent is added to low molecular chitosan quaternary ammonium salt or low molecular chitosan solution under a stirring condition to be used as first fluid, povidone iodine is swelled to be used as second fluid, and the first fluid and the second fluid are evenly mixed according to a proper proportion and are regulated to a prescriptive range by a chemical reagent to obtain the compound biological activity sterilizing fluid. The prepared compound biological activity sterilizing fluid uses low molecular chitosan and povidone as double carriers, the chitosan not only can strengthen the bacterium inhibiting and sterilizing effects of the povidone iodine, but also has a certain adsorbing function for iodine released by the povidone iodine, causes the release of the iodine to be doubly controlled to reduce the volatilization of the iodine and increase the release uniformity of the iodine, the chitosan has degradability, the skin mucosa protecting function and the bacterium inhibiting function, therefore, the compound biological activity sterilizing fluid is stable and environmental-friendly and has high efficiency, low toxicity, low irritation and the skin protecting function.

The invention discloses a method for preparing a carbon-doped titanium dioxide composite material, comprising the following steps of: fully mixing a TiCl3 solution at the mass concentration of 10%-20% and a sucrose solution at the mass concentration of 1%-10% according to the volume ratio of 1:1-6 with magnetically stirring; placing the mixed solution into a thermostat to perform a reaction at the temperature of 100-150 DEG C for 6-12 hours to hydrolyze TiCl3 and carbonize the sucrose to form an amorphous titanium dioxide-carbon composite material; washing the obtained substance with an organic solvent for 3 to 7 times, and washing with distilled water for 3 to 7 times, followed by drying; crushing the obtained substance, placing the ground substance into an activation furnace, adjusting the temperature to 400-700 DEG C at the heating rate of 3-5 DEG C / min under the protection of nitrogen, calcining at constant temperature for 2-6 hours to produce the needed product. According to the invention, titanium dioxide is embedded in translucent carbon films to form tiny briquettes, thus overcoming the shortcoming that nanometer TiO2 is not easy to settle in a water solution and is difficult to recycle.

The invention discloses a spraying diatom ooze air-purifying interior wall decorative material which is prepared by uniformly stirring the following components: 20%-50% of diatomite, 10%-40% of heavy calcium powder, 1%-3% of organic bentonite, 20%-35% of mica powder, 3%-8% of titanium white, 5%-25% of redispersible rubber powder, 0.5%-1% of cellulose ether, 0.5%-2% of nanometer titanium dioxide, and 1%-3% of anionic materials; the invention has good fluidity and adhesiveness, and spraying or roller painting construction can be performed only by well mixing the material with water; the invention does not contain any harmful substances, has the functions of adsorption and decomposition of harmful gas, has air permeability, and also has the characteristics of transport and construction simplicity.

The invention discloses a preparation method of a polyurethane pervaporation phenol / water separating membrane compounded by inorganic particles, and belongs to the field of pervaporation membrane separation. The polyurethane membrane basic material is obtained by polymerizing and mixing monomer hydroxyl-terminated polybutadiene, toluene diisocynate, 4,4'-diamine diphenylmethane solution, cyclodextrin and silica or carbon fiber powder. The preparation method comprises the following steps: reacting hydroxyl-terminated polybutadiene with toluene diisocynate to obtain blocked prepolymer, then adding 4,4'-diamine diphenylmethane solution and cyclodextrin as chain extenders to perform the chain extension, and adding inorganic modified particle silica or carbon fiber powder (using N,N-dimethylacetamide as solvent) to obtain prepolymer solution of polyurethane; casting the solution on a polyfluortetraethylene plate to form a membrane, solidifying for 1-1.5 hours at room temperature, and moving the membrane to an oven at 80 DEG C to thermally treat to obtain the polyurethane membrane compounded by inorganic particles. The preparation method disclosed by the invention is simple in process, and the prepared membrane has good heat and chemical stability and mechanical property.

The invention discloses a cherax quadricarinatus breeding method. The method comprises the following steps of pond selection, pond disinfection, breeding water treatment, compound bacteria culture, shrimp fry stocking, feed feeding and pond management. According to the breeding method, by reasonably arranging a shelter, breeding compound bacteria, adding EM bacteria and traditional Chinese medicine powder into feed and the like, breeding is conducted under the condition of not using hormones or antibiotics, the method has the advantages of being ecological, environmentally friendly, less in investment, low in cost and convenient to manage, and the cherax quadricarinatus obtained through breeding is high in survival rate, high in growth speed, healthy and strong in physique, high in diseaseresistance and high in stress resistance.

The invention relates to a special controlled-release water soluble fertilizer for grapes and a preparation method of the special controlled-release water soluble fertilizer. The controlled-release water soluble fertilizer is prepared from the following raw materials in parts by weight: 190-230 parts of ammonium nitrate, 40-60 parts of ammonium dihydrogen phosphate, 30-50 parts of triple superphosphate, 90-110 parts of monopotassium phosphate, 230-260 parts of potassium nitrate, 100-130 parts of potassium sulfate, 30-60 parts of chelated medium trace element mixture, 7-10 parts of borax and 3-6 parts of inorganic gel particle. The preparation method comprises the following steps: (1) treating monopotassium phosphate and potassium sulfate by use of the inorganic gel particle to obtain controlled-release monopotassium phosphate and potassium sulfate; and (2) mixing and dispersing the raw material components at a high speed to obtain the controlled-release water soluble fertilizer. According to the special controlled-release water soluble fertilizer for grapes, a part of phosphorus and potassium nutrients in the controlled-release water soluble fertilizer have slow release feature, so that the water soluble fertilizer is in accordance with the law of the nutrient absorption in a grape growth period, the fertilizer efficiency utilization rate of the water soluble fertilizer is improved and the controlled-release water soluble fertilizer has high market application value.

The invention discloses in-situ adsorption-microelectrolysis-catalytic oxidation sewage treatment equipment and method, belonging to the technical field of sewage treatment in environment engineering. The in-situ adsorption-microelectrolysis-catalytic oxidation sewage treatment equipment is characterized in that adsorption equipment, electrolysis equipment and catalytic oxidation equipment are integrated so as to gather enable pollutants to be gathered from a low-concentration water phase onto an adsorbent; by using the favorable electric conductivity, the adsorbent is used as a complexly polarized three-dimensional electrode to form countless micro electrolytic baths, so that the organic pollutants are electrolyzed while organic matters are adsorbed, and adsorption active sites are continuously regenerated; and by utilizing an electric insulation material, the three-dimensional electrode is complexly polarized and has a high-class oxidation catalyst function at the same time, so that a gas oxidant dissolved in water and an oxidant generated by side reaction of the electrode form a high-class oxidant to efficiently remove the organic pollutants. According to the equipment and the method, the problems of slow reaction speed, low space-time efficiency, low current efficiency and low pollutant degradation efficiency in the conventional electrolytic reactors are solved, and an excellent market prospect is provided.

The invention relates to a diatomite decoration tile. The diatomite decoration tile comprises a base layer and an outer layer, wherein the outer layer is a plastic layer; the base layer comprises the following components in percentage by weight: 20-35 percent of diatomite, 45-60 percent of coarse whiting, 1-3 percent of plant fibers, 3-8 percent of white cements, 0.5-2 percent of nanometer titanium dioxide, 1-3 percent of negative oxygen ions and 2-5 percent of mineral pigments; the plastic layer material is PVC, PE or PP. The diatomite decoration tile is prepared from diatomite materials having an air purification function, any harmful substances are not included, and the diatomite decoration tile also has functions of adsorbing and decomposing harmful gas and has a high air humidity regulation function; moreover, the diatomite materials can be made into products with different shapes such as decoration tile and mosaics; meanwhile, the plastic layer is adhered outside the decoration tile, and various colors of the plastic layer can be provided.

The invention discloses a microcrystalline transparent leadless glaze-polycrystalline micropowder-ceramic composite glass tile and belongs to the technical field of building materials. The glass tile comprises a microcrystalline transparent leadless glaze surface layer, a ceramic base body layer and a polycrystalline micropowder layer between the fritted glaze surface layer and the ceramic base body layer. According to the ceramic tile, based on an unglazed ceramic biscuit, the fritted glaze is integrally compounded with the ceramic biscuit through the polycrystalline micropowder layer by virtue of a fritted glaze technology of a western tile and a compound technology of microcrystalline and polycrystalline micropowder. The glass tile has the physical and chemical performances of being resistant to acid and alkali, low in radioactivity, low in water absorption, high in strength, resistant to water and stain, and the like. The glass tile is leadless on the glaze face, smooth and glossy in texture, bright in color, light in weight and not prone to peel. The ceramic part further has the functions of adsorbing and decomposing harmful gas.

The invention provides an immobilized microorganism structural body and a preparation method thereof. The method comprises the following steps: S1, taking municipal biomass waste as a raw material, and chemically activating the raw material; S2, carbonizing the chemically activated product at a low temperature to obtain biomass-based biochar; S3, mixing an embedding agent with the biomass-based biochar, wherein the embedding agent comprises a biodegradable material; S4, adding an oxygenation agent, microorganisms with a degradation effect for black and smelly river channels and growth factor to the mixture obtained in step S3; and S5, embedding and immobilizing the product in step S4.

The invention discloses a microencapsulated air freshener. A preparation method of the microencapsulated air freshener comprises the following steps: mixing and stirring 3-8g of sodium alginate and 100ml of water, and heating to 60-70 DEG C at the same time; after the sodium alginate is completely dissolved in the water, continually stirring, gradually cooling to 40-45 DEG C, and adding 0.3ml-1.8ml of an essential oil mixture formed by mixing peppermint essential oil, tea tree essential oil and lemongrass essential oil in the weight ratio of 3:4:4 to 6:4:1; and after the essential oil mixture is uniformly dispersed in the solution, slowly cooling to room temperature to form sodium alginate-essential oil microcapsules, adding a chitosan wall material accounting for 0.5wt%-1.5wt% of the sodium alginate-essential oil microcapsules, and adding glycerine accounting for 0.2wt%-1.0wt% of the sodium alginate-essential oil microcapsules, thus finally forming the microencapsulated air freshener taking chitosan and sodium alginate as the wall material and taking the peppermint essential oil, the tea tree essential oil and the lemongrass essential oil as the core material. The microencapsulated air freshener disclosed by the invention has the beneficial effects of good air purifying effect and long lasting time.

A saline-alkali soil deep-improving method by chemical-biological technology includes steps of S1, improving chemical components of the saline-alkali soil by chemical measures, firstly, adding humic acid fertilizer into the saline-alkali soil, then adding chemically acidic fertilizer into the saline-alkali soil, applying physiologic acidic fertilizer, and finally adding mineral chemical fertilizer into the saline-alkali soil; S2, improving the saline-alkali soil by biological measures, firstly, planting suaeda salsa of euhalophyte on the saline-alkali soil to be treated, or planting scutellaria strigillosa hemsl when salt content of the saline-alkali soil ranges from 0.2% to 0.3%. The saline-alkali soil deep-improving method provides a feasible, economic and efficient scheme for improving the saline-alkali soil in coastal regions, improvement time is short, effect is good and no backflow is caused after improvement.

The invention discloses a composite fiber with effects of heat accumulation, heat preservation and health protection. The composite fiber is obtained with the following technique: heating coffee grounds to a certain extent to generate nanometer-level coffee carbon; nanocrystallizing far-infrared material which contains a plurality of metal ions; uniformly mixing polyester slices, silane coupling agents, zine stearate as a surfactant and liquid wax as a dispersant to form a melted polyester material; uniformly mixing the nanometer-level coffee carbon, the far-infrared material and the melted polyester material in a weight ratio of 1:1:3.2 to 3.8 into a mixture; forming masterbatches from the mixture with a granulator; uniformly mixing the masterbatches and polyester slices in a weight ratio of 1:8.2 to 9.2 and melting filature to form composite filaments with effects of heat accumulation, heat preservation and health protection; and forming long fiber with effects of heat accumulation, heat preservation and health protection by drafting the composite filaments. The composite fiber provided by the invention has such functions as good moisture-absorbing capability and air permeability, strong capability in health protection and heat storage, and long heat preservation time and so on.

The invention provides a multifunctional opening foaming polymer particle and a preparation method thereof. The method includes the steps that nano-titanium dioxide or nano-zinc oxide or nano silver powder or nano zinc sulfide is used as a multifunctional auxiliary, an appropriate coupling agent, polymeric dispersant, antioxygen and polymer resin are further adopted, a twin-screw extruder is used for achieving melt blending to conduct extrusion and particle cutting, functional nano powder is wrapped in matrix resin so that polymer particles can be formed, then the polymer particles are foamed by supercritical carbon dioxide gas, the multifunctional opening foaming polymer particle with excellent performance can be prepared, the particle has a surface opening through hole structure and an inner continuous large hole structure, the particle size is 0.5-5 mm, and the opening hole diameter and the inner through hole diameter of the surface of a particle spherical shell both can reach 50 nm-10 microns. The preparation method is simple in technology, convenient and easy to implement. The prepared opening foaming polymer particle has the functions of absorption, filtering, antibacteria and mold prevention, catalysis, odor removal, formaldehyde removal, anti-ultraviolet ageing and the like.

The invention relates to a lightweight plastic-wood composite sheet and a preparation method thereof. The preparation method comprises the following steps of: firstly stirring PVC particles and tribasic lead sulfate evenly in a stirred tank, and then adding wood flour, LDPE-g-GMA, hollow glass beads, chlorinated polyethylene, ethylene bisstearamide and hard fatty acid butyl ester to the tank, heating up and stirring evenly, cooling and taking out the mixture, and then stirring the mixture evenly with baking soda and citric acid at room temperature, extruding out and molding. The lightweight plastic-wood sheet has the advantages of convenient production and manufacture, high degree of mechanization in the production process, low production cost, low density, light weight, easy installation and maintenance, less use of timber and plastic, turning waste into treasure, being recyclable and not destroyed by insects, no aging and discoloration as well as cracking, no buckling deformation and high impact strength, with the function of adsorbing gas. The lightweight plastic-wood sheet can be applied to a plurality of occasions such as office buildings, hotels and home offices, can be made into products such as photo frames, picture frames, foot lines, and hoisting and fastening boards, and can also be used as suspended beams, pergolas, and the like.

The invention relates to a preparation method of an Au-TiO2-bamboo charcoal composite material and its application, and aims to provide a solution to the problems of poor ability in removing ammonia nitrogen from a polluted water body at low temperature and unobvious effect in eliminating micro-pollution in present water treatment processes. The method first prepares Au-TiO2 nanometer powder by an isometric impregnation method, and then loads the Au-TiO2 nanometer powder on the bamboo charcoal. According to the invention, an Au-TiO2 nano-material with a large specific surface area and strong adsorption and oxidation performances is loaded into the pores of the bamboo charcoal, thus the bamboo charcoal simultaneously has the functions of ammonia nitrogen adsorption as well as photocatalytic oxidation of ammonia nitrogen. Therefore, the bamboo charcoal loaded Au-TiO2 composite material can remove ammonia nitrogen from low temperature water at efficiency of 60-90%, and heavy metals and persistent organic pollutants can be partly removed. Besides, the preparation method of the invention has a simple preparation process.