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30results about How to "Catalytic decomposition" patented technology

Silicon dioxide modified activated carbon and preparation method thereof

The invention relates to a silicon dioxide modified activated carbon which is prepared from the following raw materials in parts by weight: 90-100 parts of activated carbon, 20-25 parts of silicon dioxide, 5-7 parts of alum, 7-9 parts of zeolite powder, 4-6 parts of nano kaolin, 4-6 parts of CuSO4, 6-8 parts of Fe(NO3)2, 3-5 parts of Blumea oil, 4-5 parts of modified kieselguhr and right amount of water. By modifying the activated carbon with silicon dioxide, the activated carbon has the advantages of favorable adsorption action, low cost and no toxicity, and can be easily regenerated; the added zeolite powder and nano kaolin can catalyze the decomposition of organic substances, resist bacteria, remove odor, absorb moisture and prevent mold; the Blumea oil can shed perfume, and has a protective action on the patients with asthma; and the alum, CuSO4 and Fe(NO3)2 can implement disinfection and purify water. The activated carbon has the advantages of simple technique, lower cost and favorable development prospects.
Owner:BENGBU HUAFANG FILTER

Modified straw wood charcoal adsorbent and preparation method thereof

The invention relates to a modified straw wood charcoal adsorbent which is prepared from the following raw materials in parts by weight: 110-120 parts of straw wood charcoal, 8-10 parts of zeolite powder, 7-9 parts of medical stone powder, 7-9 parts of acrylamide, 6-9 parts of kieselguhr, 16-20 parts of citric acid, 3-4 parts of EDTA (ethylene diamine tetraacetic acid), 4-6 parts of sodium tripolyphosphate, 4-5 parts of modified kieselguhr and right amount of water. The zeolite, medical stone, kieselguhr and other rock powders used for modification can enhance the adsorptivity, implement microbial resistance, deodorization, moisture absorption, mold prevention and desulfurization, and catalyze the decomposition of organic substances; the acrylamide can flocculate pollutants in water; by using the straw wood charcoal as the substrate, the adsorbent has the advantages of developed pores, high adsorption capacity and low cost, and is suitable for industrial production; and the adsorbent is suitable for daily air and water purification, and also suitable for treating industrial wastewater and waste gas.
Owner:BENGBU HUAFANG FILTER

Absorbent for removing mercury out of coal burning smoke and preparation method thereof

The invention relates to an absorbent for removing mercury out of the coal burning smoke. The absorbent is prepared from the following raw materials in parts by weight: 80 to 90 parts of bentonite, 4 to 6 parts of potassium iodate, 6 to 9 parts o chitosan, 3 to 5 parts of dilute sulfuric acid, 2 to 4 parts of sodium citrate, 2 to 4 parts of sodium tartrate, 4 to 5 parts of modified diatomite and an appropriate amount of water. According to the absorbent, bentonite is used as an absorbent base material, the absorption capacity is good, an antibactieral, deodorizing, moisture absorption and mildew preventing functions also can be realized, and organisms also can be catalyzed and decomposed; the absorbent is high in mercury removal efficiency, low in cost, free of secondary pollution and capable of meeting the industrial application requirement.
Owner:BENGBU HUAFANG FILTER

Preparation method of yttrium zirconate ceramic glaze material having photocatalytic function

The invention relates to a preparation method of a yttrium zirconate ceramic glaze material having a photocatalytic function. The preparation method comprises the following steps: preparing quartz, potash feldspar, albite, borax, Y2O3, Suzhou clay and lithium carbonate, keeping the temperature at 1270-1290 DEG C for 20-40 minutes, taking out, pouring into water, quenching to prepare a fusion cake, and grinding the fusion cake to obtain a material A; preparing the material A, Y2O3, ZrO2 and Suzhou clay, and grinding to obtain a material B; adding the material B and dispersing agent into water, and uniformly stirring and mixing to prepare a glaze slip; and applying the glaze slip to the surface of ceramics in a glaze spray manner, and firing to obtain the yttrium zirconate ceramic glaze material having a photocatalytic function. According to the invention, the ceramic glaze is prepared through a firing process and does not need coating, so that the prepared functional ceramic glaze material can be tightly combined with a ceramic matrix; and the photocatalyst yttrium zirconate generated in the sintering process of Y2O3 and ZrO2 is uniformly distributed in the glaze material, thereby avoiding influencing the aesthetic property of the glaze material due to a rainbow effect.
Owner:广西艾陶新型材料科技有限公司

Oyster shell modified activated carbon desulfurizing agent, and preparation method thereof

The invention discloses an oyster shell modified activated carbon desulfurizing agent. The oyster shell modified activated carbon desulfurizing agent is prepared from the following raw materials in parts by weight: 120-130 parts of activated carbon, 2-4 parts of titanium tetrachloride, 2-3 parts of calcium citrate, 30-35 parts of oyster shell, 5-7 parts of aluminum oxide, 4-6 parts of zinc oxide, 10-15 parts of bentonite, 1-2 parts of pine needle oil, 2-4 parts of ascorbic acid, 4-5 parts of modified diatomite and a suitable amount of water. By virtue of high-temperature carbonization of the oyster shell, the oyster shell modified activated carbon desulfurizing agent disclosed by the invention has a shape with a developed pore structure and a large specific surface area, has the capability of adsorbing various solutes and free gases, is rich in metal oxides such as calcium oxide and can e used for realizing effective desulfuration; meanwhile the oyster shell modified activated carbon desulfurizing agent is added with aluminum oxide and zinc oxide to realize effective desulfuration and catalyze degradation of organics; the bentonite used can realize antibacterial property, deodorization, moisture absorption, catalysis and caking property, so the activated carbon is less in possibility of being disintegrated; pine needle oil is added to emit sweet smell to fresh the brain. The activated carbon of the oyster shell modified activated carbon desulfurizing agent disclosed by the invention is suitable for industrial desulfuration and automobile exhaust desulfuration, daily air purification and water purification, and has wide application and quite good prospect.
Owner:BENGBU HUAFANG FILTER

Modified activated carbon high-concentration desulfurizer and preparation method thereof

The invention relates to a modified activated carbon high-concentration desulfurizer which is prepared from the following raw materials in parts by weight: 110-120 parts of activated carbon, 10-15 parts of potassium carbonate, 2-4 parts of zinc nitrate, 6-8 parts of aluminum oxide, 10-15 parts of zinc oxide, 7-9 parts of zeolite, 11-13 parts of malic acid, 8-10 parts of peach gum powder, 10-13 parts of lactic acid, 4-5 parts of modified kieselguhr and right amount of water. By using the potassium carbonate, aluminum oxide and zinc oxide, the desulfurizer can implement high-efficiency desulfurization and catalyze decomposition of organic substances; the zeolite can have the effects of microbial resistance, deodorization, moisture absorption, catalysis and cohesiveness, so that the activated carbon can not be easily disintegrated; the peach gum powder is added, so that the activated carbon can not be easily disintegrated, and is safe and environment-friendly; and the desulfurizer is suitable for industrial high-concentration desulfurization, automobile exhaust desulfurization and acidic material removal in water, can also he used for routine air purification, and thus, has favorable application prospects.
Owner:BENGBU HUAFANG FILTER

Method for depositing film of IIIA group metal

A composition for use in compound semiconductor fabrication is provided. Methods of manufacturing compound semiconductors using these compositions are also provided.
Owner:ROHM & HAAS ELECTRONICS MATERIALS LLC

Preparation method of dark soy sauce with anti-oxidation function

The invention relates to the technical filed of food fermentation, and specifically relates to a preparation method of dark soy sauce with an anti-oxidation function. The dark soy sauce with the anti-oxidation function is prepared from the following raw materials: cordyceps militaris, soy sauce koji, oat, needle mushrooms, Chinese wolfberry fruits, hypsizygus marmoreus, bearded tooth mushrooms, a taste enhancer, crystal sugar, a sweetener, salt, and water. The preparation method of the dark soy sauce with the anti-oxidation function comprises the following steps of: preparing soup, preparing original soy sauce liquid, carrying out blending, carrying out concentrating, and carrying out sun-curing so as to obtain soy sauce liquid; and then, blending the sun-cured soy sauce liquid with the sweetener, the taste enhancer and the like, and carrying out cooking, filtering and filling so as to obtain the dark soy sauce. The dark soy sauce prepared by the preparation method is capable of improving total anti-oxidation capacity, superoxide dismutase activity and glutathione peroxidase activity of the serum and the liver, decreasing malondialdehyde content of the serum and the liver, reducing monoamine oxidase activity of the whole brain, improving peroxidase activity of the heart, and increasing immunoglobulin G content and immunoglobulin M content so as to achieve the functions of scavenging free radical, reduce heart oxidation and enhancing body immunity.
Owner:MAANSHAN SHIYUEFENG FOOD

Preparation method of bismuth zirconate microcrystal ceramic glaze with photocatalytic function

The invention relates to a preparation method of bismuth zirconate microcrystal ceramic glaze with a photocatalytic function. The preparation method includes: blending quartz, potassium feldspar, albite, borax, Bi2O3, Suzhou kaolin and lithium carbonate according to the mass ratio, performing heat preservation at 1270-1290 DEG C for 20-40 minutes, taking out, pouring into water for quenching, and grinding to obtain a material A; blending the material A, the Bi2O3, ZrO2 and the Suzhou kaolin according to the mass ratio to obtain a material B; adding the material B and a dispersing agent into water, and evenly stirring to prepare glaze slip; glazing the surface of ceramic with the glaze slip, and sintering to obtain the bismuth zirconate microcrystal ceramic glaze with the photocatalytic function. The preparation method has the advantages that the ceramic glaze is prepared by the sintering process, coating is not needed, the prepared functional glaze can be tightly combined with a ceramic matrix, the photocatalyst generated during the sintering of the Bi2O3 and the ZrO2 is evenly distributed in the glaze, and the 'rainbow effect' which affects glaze attractiveness is not generated.
Owner:SHAANXI UNIV OF SCI & TECH

Eco-friendly composite material and production method thereof

The invention discloses an eco-friendly composite material. The eco-friendly composite material mainly comprises 40-60 parts by weight of PVC, 10-60 parts by weight of calcium powder, 0.1-4 parts by weight of carbon powder, 1.5-4 parts by weight of a stabilizing agent, 1-5 parts by weight of negative oxygen ion powder and 1-15 parts by weight of plant fiber powder. The eco-friendly composite material is environmentally friendly, can release negative oxygen ions, can improve air quality and can catalytically decompose poisonous and harmful gas and bacteria. Through use of degradable materials as main materials, the eco-friendly composite material can be easily decomposed.
Owner:曾立敏 +1

Preparation method of bismuth zirconate microcrystalline ceramic glaze with photocatalysis function

The invention discloses a preparation method of bismuth zirconate microcrystalline ceramic glaze with a photocatalysis function. The preparation method comprises the following steps: blending quartz, potassium feldspar, albite, borax, Bi2O3, Suzhou soil and lithium carbonate; preserving heat at 1,270-1,290 DEG C for 20-40min; taking out and pouring into water for quenching to obtain a frit; grinding the frit to obtain a material A; blending the material A with Bi2O3, ZrO2 and Suzhou soil to obtain a material B; adding the material B and a dispersing agent into water, stirring and uniformly mixing to obtain glaze slip; glazing the ceramic surface with the glaze slip; and firing to obtain a bismuth zirconate ceramic glaze with a photocatalysis function. The glaze prepared According to the invention has good gloss and stable chemical property. According to the invention, the ceramic glaze is prepared by adopting a firing technology, coating is not needed, and thus the prepared functional ceramic glaze is tightly combined with a ceramic base and does not fall off easily; and moreover, crystal flowers of special morphology can be quickly formed on the glaze surface, and the surface decoration effect is good.
Owner:SHAANXI UNIV OF SCI & TECH

Ultrafiltration membrane surface modifier and modification method

The invention provides an ultrafiltration membrane surface modifier. By mixing diatomaceous earth with titanium dioxide, a mixture is added to an yttrium sulfate solution and mixed with chlorinated paraffin, and then calcining is performed; modification of diatomaceous earth is performed by yttrium sulfatecan to increase internal channels of diatomaceous earth and increase the active center of diatomaceous earth; the decomposition of added chlorinated paraffin during calcining can further increase the channels of the diatomaceous earth, and the performance of the ultrafiltration membrane is enhanced; the surface modification of the ultrafiltration membrane is performed by the modifier to form a coating on the surface of the ultrafiltration membrane, direct contact between the pollutant andthe ultrafiltration membrane is reduced, the pollution of the ultrafiltration membrane is reduced, and anti-pollution ability of the ultrafiltration membrane is increased; and after the ultrafiltration membrane is modified by the ultrafiltration membrane surface modifier, the removal rate of chemical oxygen demand, total organic carbon and ammonia nitrogen in sewage is improved compared with an ultrafiltration membrane without modification, and meanwhile, the surface modifier further contains titanium dioxide, and can catalyze the decomposition and degradation of the pollutants.
Owner:HEBEI ZHONGQUAN ENVIRONMENT PROTECTION TECHCO LTD

Preparation method of electrochemical luminescence immunosensor for detecting CYFRA 21-1 by using copper-doped Tb-based MOF

The invention relates to a preparation method of an electrochemical luminescence immunosensor for detecting CYFRA 21-1 by using a copper-doped Tb-based MOF. Specifically, The copper-doped Tb-based MOFis adopted as a sensing interface, and the copper-doped Tb-based MOF has a large specific surface area and a stable electrochemical luminescence signal. The AuPdPt nanoflower is compounded with the copper-doped Tb-based MOF, so that the conductivity of the copper-doped Tb-based MOF can be improved, and the noble metal nanoflower has catalytic activity and can further amplify an electrochemical luminescence signal. The linear range of CYFRA 21-1 detection is 0.1 pg. mL<-1>-100 ng. mL<-1>, and the detection limit is 32 fg.mL<-1>.
Owner:UNIV OF JINAN

Phytase organic fertilizer and preparation method thereof

The invention discloses a phytase organic fertilizer and a preparation method thereof. The preparation method includes following steps: (1) mixing weathered coal at a certain granularity and bentonite according to the mass ratio of 5-8:1 to prepare humified bentonite; (2) adding the commercially-available phytase according to a certain proportion to the humified bentonite to prepare immobilized phytase; and (3) mixing the immobilized phytase with composted monogastric animal dry feces according to the mass ratio of 10-15:100 with stirring uniformly to obtain the phytase organic fertilizer. The preparation method is simple in operation and the phytase organic fertilizer is simple in use. The phytase in the fertilizer can maintain the activity for a long time so that phytic acid in pig manure, poultry manure and human feces can be decomposed to release inorganic phosphorus. The phytase organic fertilizer, when being applied in soil, can increase the activity of the phytase in soil, can promote the organic phosphorus in soil to be converted into inorganic phosphorus and can increase the bio-availability of the organic phosphorus.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Underground water remediation method

The invention belongs to the technical field of underground water treatment, and particularly relates to an underground water remediation method. The groundwater remediation method provided by the invention comprises the following steps: 1) injecting ozone into an underground aquifer through an ozone channel in an integrated double-channel injection well, then injecting hydrogen peroxide into the underground aquifer through a medicament channel in the integrated double-channel injection well, and injecting the coal ash slurry into the underground aquifer through a medicament channel in the integrated double-channel injection well. 2) repeating the operation in the step 1) until the underground water quality meets the standard requirements. The groundwater remediation method provided by the invention is low in cost, and the removal efficiency of organic pollutants in groundwater can be greatly improved.
Owner:安徽国祯环境修复股份有限公司

Anti-aging composition

InactiveCN112076203APrevent and relieve physicalPrevent and alleviate pathological processesAntinoxious agentsHeterocyclic compound active ingredientsRejuvenationAging resistance
The invention provides an anti-aging composition, and relates to the technical field of anti-aging. The anti-aging composition comprises NMN and / or NR. The anti-aging composition provided by the invention has the advantages that the anti-aging composition mainly comprises NMN and / or NR, adjusts a main clock in an organism to a normal state, improves the NAD + level in the organism, maintains the rejuvenation of mitochondria, resists the aging of cells, maintains the regeneration capacity of blood capillaries, prevents and relieves various physiological and pathology processes related to agingin the organism, so that the physiological state tends to be normal young; meanwhile, the muscle state of an organism is also improved, the SIRT1 activity is increased, skeletal muscle oxidative metabolism and energy generation are increased, the endurance and exercise capacity of the organism are improved, sleep is improved, energy resistance and aging resistance are improved, and meanwhile suffering from excessive internal heat is relieved.
Owner:硬核医药科技(上海)有限公司

Cobalt-based mimic enzyme as well as preparation method and application thereof

The invention provides a cobalt-based mimic enzyme as well as a preparation method and application thereof, the cobalt-based mimic enzyme comprises cobalt-based nanoparticles and biological modification molecules compounded outside the cobalt-based nanoparticles, and the biological modification molecules comprise any one or a combination of at least two of biological protein molecules, glutathioneor cysteine molecules. The cobalt-based mimic enzyme has excellent mimic enzyme characteristics and can effectively catalyze decomposition of hydrogen peroxide.
Owner:THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA

a fes 2 Preparation method and application of composite material with s

The invention discloses a preparation method and an application of a FeS2 and S composite material, and belongs to the technical field of energy materials. The method includes the steps: (1) mixing ferric salt solution and organic ligand solution to prepare a Fe-based zeolite imidazole frame compound (Fe-ZIF); (2) mixing the prepared Fe-ZIF and sulfur, and calcining mixture in a tube furnace at high temperature to obtain hollow FeS2 balls; (3) mixing the hollow FeS2 balls and elemental sulfur, heating and smelting mixture under protection of inert gas, and cooling the mixture to reach the indoor temperature to obtain the FeS2-S composite material. The preparation method has the advantages that the FeS2 serves as positive electrode materials of lithium-sulfur batteries and has high chemicaladsorption effects on discharge intermediate polysulfide lithium of the lithium-sulfur batteries, namely, dissolution of the polysulfide lithium is restrained by the aid of Lewis acid and base actions of the FeS2 and polysulfide ions, shuttle effects are reduced, and decomposition of the polysulfide lithium can be catalyzed by the FeS2, so that battery performances are improved. The preparation method is simple, low in raw material cost and pollution-free in process.
Owner:HARBIN INST OF TECH

A preparation method of yttrium zirconate ceramic glaze with photocatalytic function

The invention relates to a preparation method of a yttrium zirconate ceramic glaze material having a photocatalytic function. The preparation method comprises the following steps: preparing quartz, potash feldspar, albite, borax, Y2O3, Suzhou clay and lithium carbonate, keeping the temperature at 1270-1290 DEG C for 20-40 minutes, taking out, pouring into water, quenching to prepare a fusion cake, and grinding the fusion cake to obtain a material A; preparing the material A, Y2O3, ZrO2 and Suzhou clay, and grinding to obtain a material B; adding the material B and dispersing agent into water, and uniformly stirring and mixing to prepare a glaze slip; and applying the glaze slip to the surface of ceramics in a glaze spray manner, and firing to obtain the yttrium zirconate ceramic glaze material having a photocatalytic function. According to the invention, the ceramic glaze is prepared through a firing process and does not need coating, so that the prepared functional ceramic glaze material can be tightly combined with a ceramic matrix; and the photocatalyst yttrium zirconate generated in the sintering process of Y2O3 and ZrO2 is uniformly distributed in the glaze material, thereby avoiding influencing the aesthetic property of the glaze material due to a rainbow effect.
Owner:广西艾陶新型材料科技有限公司

Plant enhancer and a method of using the same

A plant enhancer includes a ferrocenyl polymer composition, a polyaryl ether nitrile-carbonyl iron magnetic material, silica nanoparticles, and an amino acid powder.
Owner:SICHUAN HUI TAI AGRI TECH CO LTD

A kind of preparation method of yttrium zirconate ceramic microcrystalline opaque glaze with photocatalytic function

The invention discloses a preparation method of zirconate yttrium ceramic microcrystal opacification glaze with a photocatalysis function. The method comprises the steps that quartz, potassium feldspar, albite, borax, Y2O3, Suzhou clay and lithium carbonate are subjected to batching and then subjected to heat preservation for 20 min to 40 min at the temperature of 1,270 DEG C to 1,290 DEG C, the materials are taken out to be poured into water to be quenched, frit is prepared, and the frit is ground to obtain a material A; the material A, Y2O3, ZrO2 and the Suzhou clay are subjected to batching and then ground to obtain a material B; the material B and a dispersing agent are added into water, and the materials are stirred and mixed to be uniform to obtain glaze slurry; the glaze slurry is glazed on the ceramic surface, firing is conducted through roller kiln oxidizing flame after drying is conducted, and then the Y2ZrO5 microcrystal ceramic glaze with the photocatalysis function is obtained. According to the method, the ceramic glaze is prepared by adopting a firing technology, film coating is not needed, and therefore the prepared functional ceramic glaze is closely bonded with a ceramic base body; a photocatalyst zirconate yttrium generated in the firing process of Y2O3 and ZrO2 is uniformly distributed in the glaze, and the condition that a rainbow effect is generated to influence the glaze attractiveness cannot occur.
Owner:SHAANXI UNIV OF SCI & TECH

A preparation method of bismuth zirconate ceramic microcrystalline opaque glaze with photocatalytic function

The invention discloses a preparation method of zirconate bismuth ceramic microcrystal opacifying glaze with a photocatalysis function, which comprises the following steps: quartz, potassium feldspar, soda feldspar, borax, Bi2O3, Suzhou clay and lithium carbonate are poured into water to be quenched to obtain a frit after being compounded and subjected to heat preservation at 1270 to 1290 DEG C; a material A is obtained after the frit is ground; a material B is obtained after the material A, Bi2O3, ZrO2 and Suzhou clay are compounded; the material B and a dispersant is added into water and is glazed onto the surface of ceramics after being stirred uniformly, and sintering is performed to obtain the zirconate bismuth ceramic microcrystal opacifying glaze with the photocatalysis function. According to the preparation method, the ceramic glaze is prepared by a sintering process without the need of coating, so that the prepared functional ceramic glaze is bonded tightly with a ceramic basal body, and is not easy to fall off, a photocatalyst bismuth zirconate generated by the Bi2O3 and the ZrO2 in the sintering process has uniform distribution in the glaze and crystal flowers with special shapes can be formed rapidly on the surface of the glaze, the surface decoration effect is well.
Owner:SHAANXI UNIV OF SCI & TECH

Nanometer Al/Ni/hydroxyl-terminatedpoly butadiene (HTPB) nucleus-shell structure energetic composite particle and preparation method thereof for solid propellant

The invention discloses nanometer Al / Ni / hydroxyl-terminatedpoly butadiene (HTPB) nucleus-shell structure energetic composite particle and a preparation method thereof for solid propellant. The composite particle is a three-layer nucleus-shell structure composite material. The preparation method comprises the steps: using Al power as a nucleus, and Ni as a shell, covering the Al power for first time, and preparing nanometer Al / Ni composite particle; and covering the nanometer Al / Ni composite particle for the second time by using HTPB, and preparing nanometer Al / Ni / HTPB composite particle. Due to the fact the Ni and the HTPB are used for covering the Al powder, oxidation of nanometer Al can be effectively prevented, and activity of the nanometer Al can be maintained. Covering materials are all formula components of the propellant, so that energetic particle structure is optimized, and problem that propellant is bad in compatibility in an application process is solved.
Owner:NANJING NORMAL UNIVERSITY +1

A kind of preparation method of bismuth zirconate microcrystalline ceramic glaze with photocatalytic function

A method for preparing bismuth zirconate ceramic glaze with photocatalytic function. Quartz, potassium feldspar, albite, borax, Bi2O3, Suzhou soil, and lithium carbonate are mixed together and kept at 1270-1290°C for 20-40 minutes, then taken out and poured. Quench in water to obtain frit; grind the frit to obtain material A; mix material A with Bi2O3, ZrO2 and Suzhou soil to obtain material B; add material B and dispersant to water, stir and mix to prepare glaze Slurry; apply the glaze slurry on the ceramic surface and bake to obtain bismuth zirconate ceramic glaze with photocatalytic function. The enamel produced by the invention has good gloss and stable chemical properties. The present invention uses a firing process to prepare ceramic glaze without coating, so that the prepared functional ceramic glaze is closely combined with the ceramic matrix and is not easy to fall off, and crystallized flowers with special shapes can be quickly formed on the surface of the glaze. The decorative effect is good.
Owner:SHAANXI UNIV OF SCI & TECH

Ultrafiltration membrane surface modifier and modification method

The present invention proposes a kind of ultrafiltration membrane surface modifier of the present invention after mixing diatomite and titanium dioxide, then adding in the yttrium sulfate solution, and then calcining after mixing with chlorinated paraffin, wherein, through yttrium sulfate to diatom Soil modification can increase the internal channels of diatomite and increase the active center of diatomite; the decomposition of added chlorinated paraffin during the calcination process can further increase the pores of diatomite, thereby strengthening the performance of ultrafiltration membranes; through this surface modification The surface modification of the ultrafiltration membrane by the agent will form a coating on the surface of the ultrafiltration membrane, thereby reducing the direct contact between the pollutants and the ultrafiltration membrane, thereby reducing the pollution of the ultrafiltration membrane and increasing its anti-pollution ability; through the ultrafiltration membrane of the present invention The removal rate of chemical oxygen demand, total organic carbon and ammonia nitrogen in the sewage after the modification of the ultrafiltration membrane by the surface modifier of the filtration membrane is improved compared with that of the unmodified ultrafiltration membrane. Contains titanium dioxide, which catalyzes the breakdown and degradation of these pollutants.
Owner:HEBEI ZHONGQUAN ENVIRONMENT PROTECTION TECHCO LTD

Carpet material with formaldehyde removal function and preparation method of carpet material

The invention relates to a carpet material with a formaldehyde removal function and a preparation method of the carpet material. The preparation method comprises the following steps: in the whole process of synthesizing manganese dioxide by using potassium permanganate and manganese salt as raw materials, treating a reaction system by an ultrasonic nanocrystallization device, and adding an aqueousacrylic monomer and a carpet base material into the reaction system before reaction starts; meanwhile, after the reaction is carried out for 10-15 min, rapidly cooling to the temperature which is minus 10 DEG C or below at a rate of 9 DEG C / min or above; and taking out the carpet base material, and drying at the temperature of 120-170 DEG C to obtain the carpet material with the formaldehyde removal function. The finally prepared carpet material with the formaldehyde removal function mainly comprises the carpet base material and porous particles which adhere to the carpet base material; the porous particles are made of manganese dioxide, the average particle size is less than or equal to 30 nm, the specific surface area is greater than 300 g / m<2>, the porosity is greater than or equal to40%, and the pore diameter is less than or equal to 5 nm. The preparation method is simple and feasible, and the carpet material prepared by the method is excellent in formaldehyde removal performance.
Owner:山东卓高新材料有限公司
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