48results about How to "Has a degradative effect" patented technology

The invention discloses a porous silicon dioxide-coated titanium dioxide nanopowder photocatalytic material. In the porous silicon dioxide-coated titanium dioxide nanopowder photocatalytic material, the particle size of titanium dioxide is 30-100nm, the thickness of a silicon dioxide coating layer is 5-15nm, silicon dioxide contains mesopores, and the pore diameter is 2-3nm. The invention also discloses a preparation method of the photocatalytic material. The preparation method is simple, easy to implement and low in production cost, and the obtained powder photocatalytic material can degrade organic and inorganic small-molecule gases and organic fuel rather than macromolecular dyes and has no photocorrosion on a supported organic base.

The invention discloses a paste-type degradable plastic film and belongs to the agricultural plastic film production field. Humic acid, film forming agents, surfactants, modifiers, fertilizers and water are used to prepare black or brown paste; the paste is then diluted by water and sprayed out to form a film-shaped structure on the soil surface. Compared with the prior art, the paste-type degradable plastic film of the invention has low cost, good effect, convenient packaging and transportation, as well as good promotion and application value.

The invention discloses a polylactic acid degrading enzyme with protein degrading activity prepared by fermentation and purification of strains of amycolatum sp. and amycolatopsis sp.; wherein the enzyme comprises a polylactic acid degrading enzyme I, a polylactic degrading enzyme II and a polylacic degrading enzyme III, said poly degrading enzyme I comprises a protein with an N-terminal amino acid sequence of IVGGGTAPTVSWGAQ or its mutant variation protein; the degrading enzyme II comprises a protein with an amino acid sequence shown as SEQ ID NO:3 or its mutant variation protein; the degrading enzyme III comprises a protein with an amino acid sequence shown as SEQ ID NO: 4 or its mutant variation protein. The degrading enzyme of the invention has a proteolysis activity, simultaneously has high-efficiency degradation capability for degradable plastics polylactic acid, not only applies to the traditional protease industries such as decontaminant, cosmetics, leather processing, but also has applications potential on the cyclic utilization of the polylactic acid producers and treatment of combined rubbish containing degradable plastics, hair and keratin or the like.

The invention relates to a method for low-temperature preparation of an anatase titanium dioxide film on the surface of cotton fabric, which comprises the following steps: (1) mixing absolute ethyl alcohol, glacial acetic acid and n-tetrabutyl titanate, then slowly dropwise adding the mixture into a mixed solution of acetic acid with a pH value of 2.5-3 and water for hydrolysis, and severely stirring to form titanium dioxide sol; and (2) soaking the cotton fabric in the titanium dioxide sol for 2-3 minutes, soaking twice and rolling twice; pre-drying at 70-90 DEG C for 3-5 minutes; and steaming at 80-100 DEG C for 2-3 hours. The preparation method provided by the invention is simple and does not need an adhesive or high-temperature curing treatment; through a conventional soaking-rolling-steaming technology, an anatase film with good binding strength, high crystallinity and excellent photocatalytic performance is formed on the surface of the cotton fabric; and the method can be applied to the purification of in-car and indoor air, self-cleaning of fabric and the like.

The invention relates to a making method of a graphene-based film with an automatic cleaning function. The method comprises the following steps: respectively preparing a graphene oxide dispersion and a titanium dioxide dispersion, blending the graphene oxide dispersion with the titanium dioxide dispersion to obtain a graphene oxide / titanium dioxide dispersion, and injecting the graphene oxide / titanium dioxide dispersion to a target substrate in order to obtain a graphene oxide-based film; and irradiating the graphene oxide-based film by ultraviolet light to reduce the graphene oxide-based film in order to obtain the graphene-based film with an automatic cleaning function. Compared with graphene-based films in the prior art, the graphene-based film prepared through making the graphene oxide-based film by injecting and utilizing ultraviolet irradiation has the advantages of certain conductivity and certain automatic cleaning function. The graphene-based film can be further applied in the fields of graphene-based conductive coatings and graphene-based surface strain sensors.

The invention relates to the technical field of washing processing, and concretely discloses a preparation method of plant washing salt powder. The method comprises the following steps: preparing cassia seed and ginkgo biloba extract, preparing soybean, tea seed and ripe vegetable sponge extract, uniformly stirring above extracts at 40-60DEG C, filtering, carrying out vacuum drying on the above obtained filtrate, adding citric acid, alkaline protease, plant cellulase, quartz sand, diatomite and salt, mixing, putting the obtained mixture in a crusher, crushing to prepare 60-100 mesh particle powder, bagging, and sealing. The plant washing salt powder is similar to detergent powder, and is convenient to transport and carry due to the powder shape, the whole plant washing salt powder respectively adopt natural plants as raw materials, and the alkaline protease and the plant cellulase added in the invention have low activity in a dry state and have a degradation effect after being mixed with water to remove protein and plant fibers on the surface of an object to be washed; and the plant washing salt powder has very strong washing and oil stain removal abilities, and also has a hand protection function.

The invention provides a neutral high temperature xylanase CtXyn10A as well as genes and application thereof. The neutral high temperature xylanase CtXyn10A has proteins of amino acid sequences shown in SEQ ID No. 3 and / or SEQ ID No. 5 in a sequence table; and / or is characterized in that amino acid residue sequences shown in SEQ ID No. 3 and / or SEQ ID No. 5 in the sequence table are replaced and / or deleted and / or added by one or several amino acid residues, and have proteins with xylanase activity and derived from the proteins with the amino acid sequences shown in SEQ ID No. 3 and / or SEQ ID No. 5 in the sequence table. The xylanase CtXyn10A has an optimum pH of 6.0 to 7.0 and an optimum temperature of 70 DEG C, keeps enzyme activity of 20% or above at 90 DEG C and pH 9.0, and specific activity is 461 U / mg; the xylanase CtXyn10A has the activity of xylanase, glucanase and cellulase, is easy to produce by industrial fermentation, and can be widely used in food, paper, energy industry and the like as a novel broad-spectrum enzyme preparation.

The invention discloses a straw type dietary compound enzyme preparation. The enzyme preparation comprises components in parts by weight as follows: 55-110 parts of cellulose, 55-105 parts of beta-dextranase, 45-100 parts of xylanase, 45-110 parts of pectinase and 70-140 parts of laccase. According to the compound enzyme preparation, lignin, cellulose and hemicellulose of straw are degraded effectively after the straw is processed, surrounding of other nutrients by lignocellulose is broken through, so that the straw nutrient digestibility is improved and the feed conversion rate is increased. The compound enzyme preparation is convenient to use, and the animal growth rate, the economic benefit and the social benefit can be increased effectively.

The invention relates to a method for cooperatively treating a waste mercuric chloride contact agent through microwaves and ultrasonic waves and belongs to the technical field of recycling and reusing of waste mercuric chloride contact agents. The method comprises the steps of mixing the waste mercuric chloride contact agent with quick lime, so that a mixture A is obtained, adding water to the mixture A, and mixing the materials uniformly, so that a mixture B is obtained; under the microwave and ultrasonic wave condition, making the mixture B be subjected to a leaching reaction, and conducting filtration and drying; under the nitrogen gas condition, conducting microwave roasting on a drying product, so that mercury and a material C are obtained; and adding water to the material C, and then conducting ultrasonic wave leaching, so that activated carbon and metal salt are obtained. According to the method, in the pretreatment process, the microwaves and the ultrasonic waves are synchronously introduced to cooperatively intensify the alkaline leaching process; cooperative treatment is conducted through the microwaves and the ultrasonic waves; under the synergistic effect of heating, the cavitation effect and the catalytic effect, an enclosing body on the surface of the waste contact agent is opened; organic deposited carbon is degraded; and a reaction occurring between alkaline liquor and mercuric chloride is accelerated, thus energy consumption generated in the process is lowered, and treatment time is shortened.

The invention discloses a method for preparing a pure biomass organophosphorus pesticide degradation agent and belongs to the field of pesticide degradation agents. According to the method, a large number of organophosphorus pesticide degrading bacteria are cultured, separated and screened out from mixed soil of earth surface sludge, activated sludge and common earth surface soil; hypha suspension liquid, humus and chitosan are mixed and aged to obtain a pasty mixture; and the pasty mixture, nano titanium dioxide and a garlic extract concentrated solution are mixed and pelletized. The organophosphorus pesticide degrading bacteria screened and acclimatized through the method have high degradation activity, and the temperature and pH applicable range is wide; the pure biomass organophosphorus pesticide degradation agent is combined with substances such as humic acid and can degrade organophosphorus pesticide more thoroughly and faster; allicin and alliin in the garlic extract concentrated solution have a degradation effect on the organophosphorus pesticide; degradation of the pesticide can be accelerated through photocatalysis of the nano titanium dioxide; moreover, the prepared pure biomass degradation agent is non-toxic, has no residues and is free of secondary pollution.

The invention provides an exposed (001) crystal face titanium dioxide / titanium carbide nanosheet and a preparation method and application thereof, and the preparation method comprises the following steps: step 1, dispersing titanium carbide MXene powder and a crystal face control agent in an HCl solution to obtain a precursor solution; and 2, carrying out a hydrothermal reaction on the precursor solution at 140-180 DEG C to obtain a reaction solution, separating the precipitate in the reaction solution, and conducting washing and drying to obtain the exposed (001) crystal face titanium dioxide / titanium carbide nanosheet. The degradation of antibiotics and organic dyes under near-infrared light is realized due to the Ti3C2 surface plasmon polariton effect in the TiO2 / Ti3C2 nanosheet, and the synergistic effect of the separation efficiency of a photon-generated carrier of TiO2 and the Ti3C2 surface plasmon polariton effect, so that the TiO2 / Ti3C2 nanosheet has a degradation effect on the antibiotics and the organic dyes under visible light and simulated sunlight.

The invention provides edible beef tallow and a preparation method thereof. The method comprises the following technological steps of pretreating raw materials, performing microorganism thermophilic fermentation, performing microwave-assisted semi-dry method enzymolysis, performing thermophilic simmering in a covered pot over a slow fire, performing separation for making oil, performing decoloringand the like. Multiple steps are combined for united oil extraction, so that the cholesterol content in the beef tallow is effectively reduced, peculiar smell and impurities in the beef tallow are removed, and the yield of the edible beef tallow is increased. Besides, fresh clean intact healthy beef fat tissue is used as a raw material, and edible ethanol, white sugar and nine-taste bags are selected for removing peculiar smell of beef fat tissues, improving flavor of raw materials and restraining oxidative deterioration of the beef fat tissues; the prepared edible beef tallow is rich in thekinds of unsaturated fatty acids of linoleic acid, linolenic acid and the like, is higher in content of unsaturated fatty acids, and rich in activity and flavored components, the whole preparation course is free from addition of acid base organic solvents and non-edible organic solvents, and products are safe to eat, comprehensive in nutrients, low in cholesterol content, high in oxidation resistance, better in mouth feel and taste, longer in quality guarantee period and wide in application range.

The invention belongs to the field of microorganisms, and discloses Geobacillus thermodenitrificans obtained by artificial mutagenesis and application thereof in cellulose degradation. The applicant separates a strain of Geobacillus thermoslucanase with the highest cellulase activity from a sample of pig carcass and straw compost in a high-temperature period, and obtains a strain of Geobacillus thermodenitrificans with high cellulase yield after high-temperature domestication and ultraviolet mutagenesis. The preservation number of the strain is CCTCC NO: M2020324. The Geobacillus thermodenitrificans BGSC95A1 with cellulase activity is reported for the first time. A plurality of carbon sources can be utilized, the Geobacillus thermodenitrificans has a degradation effect on a plurality of celluloses, and the cellulase concentration in fermentation liquor produced by fermentation is high.

The invention discloses a penicillium citrinum fungus for thin film degradation and an application thereof. The classification and name of the enicillium citrinum are (Penicillium citrinum) PT1, the enicillium citrinum is preserved in the Guangdong General Microbiological Culture Collection Center (GDMCC), and the preservation number is GDMCC No:60130. Polyethylene powder of different molecular masses can be degraded through the PT1 fungi, the PT1 fungi can grow with a biodegradable mulching film and erode a common polyethylene mulching film, can grow with polyethylene as an unique carbon source and rapidly degrade the polyethylene, and meanwhile has the degradation effect on the biodegradable mulching film.

The invention provides a method for treating azo printing and dyeing wastewater by using biological filters. The method comprises the following steps: S1, mixing oyster shells as a filler with seed sludge, and adding the obtained mixture into an anaerobic biological filter and an aerobic biological filter; S2, arranging azo printing and dyeing wastewater, and adjusting the concentration of azo dyes in the azo printing and dyeing wastewater; S3, sequentially adding the azo printing and dyeing wastewater into the anaerobic biofilter and the aerobic biofilter, and respectively standing the wastewater for 5-14 d; and S4, adjusting the influent flow rate, and continuously sequentially introducing the azo printing and dyeing wastewater into the anaerobic biofilter and the aerobic biofilter. The oyster shells act as a carrier of a biofilm, so the azo dyes can be acidified in the anaerobic degradation process to reduce the pH value, and the calcium carbonate can be dissolved out to increase the alkalinity, thereby maintenance of the pH value of the azo printing wastewater at 6-7 is beneficial to adapt to the characteristic of large change in the pH value of the printing and dyeing wastewater, and achieves a good decolorizing effect; and the anaerobic biological filter adopting oyster shells as the filler has a degrading effect on various azo dyes.

The invention discloses an application of Rhodoccus phridinivorans to degradation of zearalenone and belongs to the field of microorganisms. The Rhodoccus phridinivorans is characterized in that the preserve number is CGMCC (China General Microbiological Culture Collection) NO4.1825. The application has the advantages that the Rhodoccus phridinivorans is gram-positive bacterium which can be used for producing metabolite having obvious degradation effect on zearalenone in a microbial fermentation manner and has a good prospect in development of fungaltoxin biological detoxication agents.

The invention discloses an escherichia coli CG1061 strain for effectively degrading aflatoxin B1. The strain is collected in the Guangdong microbial culture collection center on February 1, 2018, withthe collection number being GDMCC NO:60324. The strain is separated from a chicken cecum, is a nonpathogenic escherichia coli, can effectively degrade AFB1, can be applied to detoxicating microbes, detoxicating enzymic preparations and the like for preparing aflatoxin B1, and has a good application prospect in the fields of food and feed processing and the like.

The invention relates to the technical field of ecological purification of aquaculture water, and particularly discloses a plant fermentation extract for freshwater aquaculture and a preparation method thereof. The plant fermentation extract for freshwater aquaculture is prepared by mixing equisetum hiemale, gordon euryale seed, cuttlebone, cordyceps sinensis, cyrtomium rhizome, hirudin, dried earthworm, rhizoma phragmitis, chitosan oligosaccharide, isomaltooligosacharide, liquorice, typha angustifolia root, selenium yeast and iron-enriched yeast as raw materials according to a certain weight ratio, fermenting, extracting and pulverizing. The raw materials are easy to obtain, the preparation process is simple, pathogenic microorganisms and bad algae in aquaculture fresh water are effectively reduced, the immunity and disease resistance of aquaculture objects are obviously enhanced, the morbidity is reduced, the survival rate is increased, the water quality is improved, and the service cycle of the aquaculture fresh water is prolonged.

The invention discloses a denim green and gray plant pad-dyeing production process which comprises the following steps: firstly pre-treating cloth and putting the cloth into water with a water temperature of 50 DEG C to soak, wherein the soaking time is 10-15 minutes; secondly, wringing and putting the soaked cloth into an alizarin plant dye bath, wherein the water weight percentage of an alizarin plant dye is 0.5-5 percent; then heating the dye bath, rising the temperature to 60 DEG C at a temperature rise speed of 2 DEG C / min, dyeing for 30-60 minutes and taking out; then pouring 1 g / L of acetic acid solution firstly and then 0.5-3 g / L of ferrous sulfate solution into the dye bath according to the bath ratio of 1:20, rising the temperature to 40 DEG C, performing heat preservation for 30 minutes, taking out and washing; finally putting the dyed cloth into 5 g / L of neutral soap lotion, performing heat preservation for 10-15 minutes in the neutral soap lotion with a temperature of 65 DEG C, taking out, washing and drying to finish dyeing. Through the production process disclosed by the invention, a dyeing product has a health function, meanwhile can be cleaned and is difficult to de-color.

The invention discloses a detoxifying agent of aflatoxins, as well as a preparation method and application of the detoxifying agent, and belongs to the technical field of removal of aflatoxins. The detoxifying agent of aflatoxins is prepared from plant components and laccase after asynchronous fermentation in the mass ratio of the plant components to the laccase being (97-99%) to (3-1%). The plantcomprises the following components of 10-30g of citrus reticulata peel, 10-30g of fructus litsease, 10-20g of radix scutellariae and 6-10g of rhodomyrtus tomentosa. The detoxifying agent of aflatoxins is natural in raw materials, green and safe, and warm in degrading effect on the aflatoxins, and can effectively degrade aflatoxins, and the degrading rate is as high as 95% or above.

The invention discloses a degradation agent of aflatoxin, a preparation method and application thereof, and belongs to the technical field of aflatoxin degradation. The degradation agent of the aflatoxin is prepared from the following components: 60-100 g of fresh aloe, 75-125 g of fermentation liquor of fresh lemon, 1% of oleum menthae, 0.1-0.5% of laccase, and 0.2% of Tween-80. Through the mutual coordination among the components, the aflatoxin is adequately degraded. The degradation agent of the aflatoxin is safe in aflatoxin degradation, high-efficient, and mild in reaction conditions, andis capable of degrading the aflatoxin by 96% or above.

The invention discloses a multi-stage series filtering system composed of porous ceramic filters and a preparation method, and belongs to the technical field of water quality purification and filtration. The multi-stage series filtering system is surrounded by a shell, and a porous pottery jar filtering unit and a porous pottery plate filtering unit are arranged in the shell; the porous pottery jar filtering unit is composed of a first porous pottery jar and a second porous pottery jar; the porous ceramic plate filtering unit is composed of a first porous ceramic plate and a second porous ceramic plate; and the space between the filtering units is filled with a mixed filtering material layer embedded with an ultrasonic vibrating reed. In the water flowing direction, water sequentially passes through the inner surfaces and the outer surfaces of the first porous pottery pot and the second porous pottery pot, and the inner surface and the outer surface of the first porous pottery pot are loaded with a silver / zinc oxide / carbon nano tube nano composite particle coating and carbon-nitrogen doped hexagonal wurtzite crystal form nano zinc oxide respectively; and a vesuvianite-based carbon-nitrogen-doped nano zinc oxide particle composite coating is loaded on the surfaces of the second porous pottery pot. The photocatalytic performance is achieved under illumination, organic pollutants in water are degraded, and the inactivation effect on microorganisms is achieved.

The invention relates to pseudomonas extremaustralis WP52 capable of degrading unsymmetrical dimethylhydrazine, and belongs to the technical field of microorganisms. The strain was preserved on June 11, 2018 in the China General Microbiological Culture Collection Center, and the preservation number is: CGMCC No.15921. The strain WP52 of the invention has wide optimal growth condition range, is easy to culture, has degradation effect on low, medium and high-concentrations of unsymmetrical dimethylhydrazine, has high efficiency and low cost, can be applied to bioremediation of water and soil contaminated by unsymmetrical dimethylhydrazine, and achieves the purpose of completely degrading unsymmetrical dimethylhydrazine.

The invention discloses an odor-removal and antibacterial spray, and belongs to the technical field of air purifying. The odor-removal and antibacterial spray is prepared from the following raw materials of bacillus microorganisms, deionized water, rosemary essential oil, eucalyptus essential oil, peppermint essential oil, ylang-ylang essential oil, jasmine essential oil and Bulgaria rose essential oil. The odor-removal and antibacterial spray has the advantage that by compounding the bacillus microorganisms, the deionized water and the essential oils, the mutual action is utilized, so that the odor-removal and antibacterial spray can be sprayed in any space, and the high-efficiency foreign odor-removal and antibacterial effects are realized.

The invention discloses alcaligenes faecalis and application thereof in degrading ochratoxin A. The alcaligenes faecalis ASAGF-0D1 has the preservation number of CGMCC No. 12100. The invention also provides a biological detoxication agent containing a preserved strain and a preparation method of the biological detoxication agent. In addition, the invention also provides the application of the strain or the biological detoxication agent in degrading the ochratoxin A.

The invention belongs to the field of microorganisms, and discloses an artificially induced Geobacillus thermoglucosidase and its application in cellulose degradation. The applicant has isolated a cellulase enzyme from pig carcasses and samples of straw composting at high temperature. The most active strain Geobacillus thermodenitrificans , after high temperature acclimation and ultraviolet mutagenesis, a strain of Geobacillus thermoglucosidase with high cellulase production was obtained. Geobacillus glucosidase BGSC95A1. A variety of carbon sources can be used, and it can degrade a variety of celluloses, and the concentration of cellulase enzymes in the fermentation broth produced by fermentation is high.

The invention relates to the technical field of seawater purification, and particularly discloses a plant fermentation extract for regulating seawater quality and a preparation method thereof. The plant fermentation extract for regulating the seawater quality is prepared by mixing raw materials including daylily root, lophatheri herba, seaweed, kelp, an oyster extract, Chinese caterpillar fungus, chitosan oligosaccharide, hirudin, perilla leaves, sandalwood, shredded coconut stuffing, cuttlebone, liquorice, Chinese toona root-bark and selenium yeast according to a certain weight ratio, fermenting, extracting and pulverizing. The raw materials are easy to obtain, the preparation process is simple, the ecological environment of seawater is effectively adjusted, the dissolved oxygen content in water is increased, activation and growth of normal flora and beneficial algae in a seawater ecological system are promoted, and ecological balance of a seawater body is kept.

The invention discloses reconstructed titanium-containing blast furnace slag with soil remediation and plant nutrient functions and application of the reconstructed titanium-containing blast furnace slag, which belong to the field of chemical fertilizers. Effective active components of the reconstructed titanium-containing blast furnace slag comprise a potassium aluminosilicate phase and a transition metal doped perovskite phase, the transition metal doped perovskite phase is wrapped in the potassium aluminosilicate phase, and the transition metal doped perovskite phase accounts for 24%-40% of the reconstructed titanium-containing blast furnace slag by mass. The balance is a potassium aluminosilicate phase and inevitable impurities; and the reconstructed titanium-containing blast furnace slag is applied to remediation of soil polluted by heavy metal organic matters. The reconstructed titanium-containing blast furnace slag prepared by the method disclosed by the invention can degrade soil polluted by organic pollutants and heavy metals under the action of sunlight, can also slowly release some inorganic nutrient substances such as Ca, Si, Mg, Al and K in the soil, promotes rapid growth of plants, is a material integrating soil remediation and plant nutrient functions, and has great significance in the aspects of continuous, environment-friendly and efficient remediation of the polluted soil.