160 results about "Calcium peroxide" patented technology

The invention relates to a Fenton-like functional filler which is prepared from 10-20% of iron particles coated with a carbonized film, 10-20% of aluminum sulfate modified straw, 20-30% of PBAT-coated calcium peroxide, 20-30% of diatomite and 10-30% of an adhesive. A processing method of a Fenton-like functional filler comprises the following steps: uniformly mixing iron particles coated with a carbonized film, aluminum sulfate modified straws, PBAT-coated calcium peroxide and diatomite, then adding an adhesive, mixing isocyanate serving as the adhesive with polyol according to a volume ratio of 1: 5, and continuously and uniformly mixing; then the mixed raw materials are injected into a mold coated with a release agent in advance, the mold temperature ranges from 40 DEG C to 60 DEG C, the foaming curing time ranges from 15 min to 20 min, and the Fenton-like functional filler can be obtained. The invention relates to an application of a Fenton-like functional filler in constructed wetlands. The method has the beneficial effects that the method is not influenced by temperature, and the removal effect of the constructed wetland on nitrate nitrogen and refractory COD (Chemical Oxygen Demand) can be obviously enhanced.

The invention discloses a composite conditioner for acid soil of slope cropland and application of the composite conditioner. The conditioner comprises the following components in percentage by mass: 12%-18% of calcium peroxide, 18%-32% of a buffer mineral compound, 1.5%-3.0% of an anti-scouring controlled-release material, 10%-25% of a nutrient carrier and fertilizer, 0.5%-3.0% of a binder and a granulation aid, and the balance of inert filler and water. The preparation process comprises the steps of dry mixing, granulation, drying and coating. The product provided by the invention can realize high residue of CaO and stable pH under the condition of heavy rainfall of slope cropland, effectively inhibit the pH fall of acid soil, reduce aluminum toxicity and reduce nutrient loss. By controlling the content and proportion of the calcium peroxide, the buffer mineral compound and the anti-scouring controlled-release material, the calcium peroxide, the buffer mineral compound and the anti-scouring controlled-release material have a synergistic effect in a slope cropland environment, so that not only is the initial rapid acid inhibition capability ensured, but also the lasting pH stability and high residual rate are realized through buffer and controlled-release technologies.

The invention is applicable to the technical field of hydrogel, and provides dynamic cross-linked hydrogel and a preparation method and application thereof, and the preparation method comprises the following steps: cross-linking oxidized dextran and carboxymethyl chitosan containing phenylboronic acid modification groups; glucanase is added before the hydrogel is formed, and calcium peroxide nanoparticles coated with polydopamine are introduced; wherein the mass concentration of the oxidized dextran is 2-10% w / v, the mass concentration of the carboxymethyl chitosan containing the phenylboronic acid modified group is 2% w / v, the concentration of the glucanase is 10-100 U, and the concentration of the calcium peroxide nanoparticles coated with the polydopamine is 0.1-1% w / v. The hydrogel disclosed by the invention shows good cell compatibility, angiogenesis promoting capability and bioactivity for promoting dental pulp regeneration in multiple in-vitro and in-vivo experiments, is suitable for tissue engineering fields such as dental pulp injury repair and the like, and effectively solves the technical problem that conventional hydrogel is insufficient in cell survival support in three-dimensional culture and the like.

The invention provides a temperature-increasing oxygen-increasing agent for waterlogging type medium and low yield fields and a preparation method of the temperature-increasing oxygen-increasing agent. The temperature-increasing oxygen-increasing agent is prepared from the following raw materials in parts by weight: 80 to 130 parts of tea seed cakes, 80 to 110 parts of aged chicken manure, 140 to 180 parts of straw powder, 7.7 to 10 parts of beneficial bacteria, 0.3 to 0.8 part of alginate oligosaccharide, 9.5 to 12 parts of silicon-calcium-magnesium ore powder, 200 to 220 parts of activated humic acid and 340 to 430 parts of calcium peroxide. The fertilizer has comprehensive nutrients, can effectively improve the utilization rate of the fertilizer, improve the soil structure and promote production and income increase, takes organic matters as a carrier, is added with a large amount of activated humic acid and silico-calcium-magnesium ore powder, has strong chelating ability, promotes the formation of soil aggregates and improves the absorption and utilization rate of plant nutrients, and has good application prospects through a unique coating technology. The active ingredients and the granulation rate of the product are effectively improved.

The present application belongs to the technical field of biochar oxygen-releasing materials, and particularly relates to a carbon-based calcium peroxide material with oxygen-releasing function, a preparation method and application thereof. Silicon-rich agricultural waste is converted into biochar through controllable pyrolysis, the pore structure of the biochar is regulated, mesoporous biochar is prepared, the mesoporous biochar is modified by phosphates to prepare phosphorus-rich biochar, and finally, the phosphorus-rich biochar is combined with calcium peroxide to obtain the carbon-based calcium peroxide material with oxygen-releasing function. The material has excellent oxygen-releasing performance and can continuously and stably release oxygen into the soil. Meanwhile, the phosphorus-rich biochar can also provide phosphorus nutrients to promote the growth of rice. The material can be widely applied to the improvement of gleyed paddy fields, effectively solves the problem of soil oxygen deficiency, improves soil fertility and rice yield, and has the characteristics of environmental protection, economy and high efficiency.

The invention provides a near-infrared light mediated hybrid hydrogel multi-bioactivity synergistic tissue repair promoting material as well as a preparation method and application thereof, and relates to the technical field of biological materials. The method comprises the following steps: 1) dispersing calcium peroxide in a solvent, and adding a 3-hydroxytyramine hydrochloride solution for reaction to obtain CaO2 (at) PDA nanoparticles; enabling the CaO2 (at) PDA nano-particles to react with a catalase solution, so as to obtain ORN oxygen release particles; (2) mixing the ORN oxygen release particles with the surfaces rich in sulfydryl with Se-NPs with the surfaces rich in selenol after reduction treatment under the protection of inert atmosphere to obtain ORN-coated Se composite particles; the preparation method comprises the following steps: dissolving hyaluronic acid methacrylate in deionized water, adding the ORN-coated Se composite particles, uniformly mixing, adding a photoinitiator, and carrying out ultraviolet curing to obtain the ORN-coated Se-HAMA hydrogel which can realize local response oxygen supply on an anoxic wound surface and has antibacterial and antioxidant characteristics.

The invention provides an exosome freeze-drying protective dressing and a preparation method thereof, and belongs to the technical field of dressings. Mixing a protective agent and the exosome, and embedding the mixture in a chitosan-sodium tripolyphosphate microcapsule to obtain an embedded exosome; the preparation method comprises the following steps: adding an extracellular matrix modified by MXene and graphene, calcium peroxide microspheres and an embedded exosome into a poly (alpha, beta-aspartic hydrazide)-C16 copolymer-silver hydrogel, and carrying out freeze drying to obtain the exosome freeze-drying protective dressing, wherein the extracellular matrix modified by MXene and graphene, the calcium peroxide microspheres and the embedded exosome are added into the poly (alpha, beta-aspartic hydrazide)-C16 copolymer-silver hydrogel; the prepared exosome freeze-dried protective dressing has good biocompatibility, can rapidly promote wound healing, reduce inflammatory response of wounds, play antibacterial and bacteriostatic effects and avoid wound deterioration, is convenient to store and transport, still has good activity after long-term storage, and has wide application prospects in the field of rapid wound healing.

The invention discloses a vinylene carbonate production waste treatment method, which comprises: dispersing triethylamine hydrochloride waste residue in water, filtering, adding excess alkali into the filtrate to carry out an alkaline hydrolysis reaction, and standing for layering to obtain an oil phase and a water phase, the oil phase containing triethylamine; adding calcium peroxide into the water phase, mixing and stirring to obtain a pretreatment solution; performing electrochemical catalytic oxidation treatment on the pretreatment solution, wherein a graphite felt electrode modified by a specific iron-based activated carbon catalyst is used as a cathode in the electrochemical catalytic oxidation treatment; the method is simple to operate, easy to implement, high in continuity, low in cost, free of high-temperature and high-pressure processes and excellent in treatment effect.

The invention provides a composite flocculant, and relates to the technical field of wastewater treatment. The composite flocculant is prepared from chitosan and humate, heavy metal cadmium and arsenic are removed, the sludge volume is reduced, a method for synchronously removing cadmium and arsenic in acid mine wastewater is provided, thorough removal of cadmium and arsenic is achieved through the synergistic effect of calcium peroxide, the diatomite adsorbent and the composite flocculant, and the service life of the composite flocculant is prolonged. The mass and volume of the sludge are reduced, the wastewater treatment cost is reduced, and the method is a rapid, economic and efficient environment-friendly treatment scheme for the acid mine wastewater.

The invention relates to the technical field of environmental restoration, and discloses a calcium carbonate coated calcium peroxide slow-release nano material as well as a preparation method and application thereof. The slow-release nano material comprises calcium peroxide and calcium carbonate and is of a core-shell structure, an inner core layer is calcium peroxide, and a shell is calcium carbonate; the preparation method comprises the following steps: continuously stirring a calcium peroxide suspension for 5-60 minutes in a normal-temperature normal-pressure and open system to spontaneously finish calcium carbonate coating without using other materials or chemical reagents. The calcium carbonate shell in the slow-release nano material provided by the invention not only enables calcium peroxide to realize H2O2 slow release, but also widens the pH application range of the material to 3.0-11.0. Compared with the prior art, the method is extremely simple in preparation process, low in cost, green, environmentally friendly and suitable for in-situ chemical oxidation repair of organic matter polluted sites.

The application discloses a kind of organic waste composting methods for reducing nitrogen loss, belong to the technical field of organic waste resource utilization, in different stages of organic waste fermentation, calcium peroxide is added, on the one hand, can maintain the oxygen environment of heap system, inhibit denitrification;On the other hand, by regulating the pH environment in system, reduce ammonia volatilization.This double synergistic effect, continue to increase efficiency in the whole composting fermentation process, oxygen regulation breaks down the gaseous nitrogen loss caused by denitrification from the root, pH regulation effectively inhibits free ammonia volatilization, the two effects cooperate with each other, throughout the whole process, can realize the efficient nitrogen conservation of organic waste raw materials from fermentation start to stable decomposition, effectively solve the problems that existing nitrogen conservation technology is not good, cost is high, easy to cause secondary pollution and affect composting maturity etc..

The present invention provides a composition for remediating petroleum hydrocarbon-contaminated soil and its use. The composition comprises a peroxide, a persulfate, and a free radical initiator. By adding an initiator to a dual oxidant system comprising peroxide and persulfate, the use of catalysts and chelating agents can be avoided, resulting in a high degradation rate for petroleum hydrocarbons in the soil. It is believed that the addition of the initiator can stimulate the persulfate and calcium peroxide to generate active free radicals, generating SO4· ‑ They stimulate each other and work together to achieve the purpose of repairing soil contaminated by organic matter.

This invention discloses an in-situ three-dimensional bioremediation method for slightly polluted water bodies. The method involves collecting a mud-water mixture from the water body to be treated, enriching and culturing it, and collecting the settled sludge. Culture medium II is added to the settled sludge for acclimatization and cultivation to prepare a biological agent. This biological agent is then added to a mixed solution of polyvinyl alcohol-hydrated calcium silicate-fulvic acid (PVA-CSH-FA) or PVA-modified zeolite-FA to prepare an immobilized biological carrier that can slowly release or adsorb calcium ions from the water. Calcium peroxide packing is also prepared to provide oxygen. The immobilized biological carrier packing and calcium peroxide packing are respectively fixed in the upper and lower layers of an ecological sedimentation bed, which is then placed in the slightly polluted water body to achieve in-situ three-dimensional bioremediation. The calcium-precipitating bacterial biological agent obtained through enrichment and acclimatization in this invention, when immobilized and mixed with the carrier material, efficiently and simultaneously removes pollutants such as nitrogen, phosphorus, organic matter, and heavy metals from slightly polluted water bodies.

A rice direct seeding seed coating method with iron powder as main raw material, comprising the following steps: 1) weighing rice seeds and pouring into a coating machine, carrying out spiral mixing, spraying water on the surface of the rice seeds in the coating machine to make the surface of the rice seeds evenly wet; 2) adding raw materials to the rice seeds in the coating machine for at least two times, adding sodium carboxymethyl cellulose, calcium sulfate powder, iron powder and calcium peroxide powder in sequence in steps each time, and finally adding a fungicide; the raw material dosages are based on the weight of the rice seeds: sodium carboxymethyl cellulose 1.5-3%, calcium sulfate CaSO4·2H2O 2-6%, calcium peroxide CaO2 4-8%, iron powder 35-45%, and the fungicide 0.1-0.4%, and the water addition amount is not more than 30%; 3) spreading the coated rice seeds into a container and drying under ventilation. The present application adopts iron powder to coat the rice seeds for direct seeding, without seed disinfection, with deeper seed fall depth, improved seed germination rate, enhanced rice plant lodging resistance, and high-efficiency weed control by direct seeding in water.

The application belongs to the technical field of biological medicine, and particularly relates to a kind of composite nanoparticles and its preparation method and application.The composite nanoparticles provided by the application include nano calcium peroxide, hyaluronic acid coated on the surface of the nano calcium peroxide and urease coated on the surface of the hyaluronic acid.In the application, the hyaluronic acid has tumor cell targeting property, which is conducive to accurately delivering the composite nanoparticles to tumor cells;at the same time, the hyaluronic acid can fix the urease on the surface of the nano calcium peroxide, which is conducive to improving the biological mineralization rate.In the application, when the composite nanoparticles enter the tumor microenvironment under the condition of providing urea outside, they are affected by the acidic microenvironment, the nano calcium peroxide decomposes to release calcium ions, and at the same time, the urease specifically decomposes urea in the microenvironment to release carbonate ions, the calcium ions and carbonate ions produce a mineral layer on the surface of the cell membrane through synergistic effect, thereby blocking the channel of cell material exchange and inducing cell apoptosis.

The invention discloses a composite bone repair material as well as a preparation method and application thereof, and belongs to the technical field of biomedical materials. The composite bone repair material comprises an etched cobalt magnesium europium molybdenum hydrotalcite nanosheet, calcium peroxide nanoparticles and an akermanite scaffold, the calcium peroxide nano-particles are loaded on the etched cobalt magnesium europium molybdenum hydrotalcite nano-sheets and are marked as a-CoMgEuMo-LDH (at) CaO2, and the a-CoMgEuMo-LDH (at) CaO2 is attached to the surface of the akermanite bracket and is marked as a-CoMgEuMo-LDH (at) CaO2-AKT. The composite bone repair material disclosed by the invention shows strong active oxygen generation capability, anti-tumor efficacy and osteogenic activity, has excellent biological safety, integrates anti-tumor and bone repair, and has a wide prospect in related operations.

The invention relates to the field of manufacturing of medical supplies, in particular to a platelet storage bag which comprises a bag body with the periphery fixedly connected to form a space in the center side for storing platelets, and a connecting pipe communicated with the interior of the bag body for circulation of the platelets. The bag body comprises two layers of isolating membranes which are in contact with blood platelets and only allow gas to pass through, oxygen generating layers and carbon dioxide absorbing layers which are compounded on the opposite surfaces of the two layers of isolating membranes in a one-to-one correspondence manner, calcium peroxide microcapsules are embedded in the oxygen generating layers, lithium hydroxide microcapsules are embedded in the carbon dioxide absorbing layers, and the oxygen generating layers and the carbon dioxide absorbing layers are compounded in a one-to-one correspondence manner. The oxygen generating layer can slowly release oxygen, the carbon dioxide absorbing layer can absorb carbon dioxide, oxygen filling and vacuumizing operation is not needed any more, platelets can be directly stored in the storage bag, use is convenient, and meanwhile the storage duration of the platelets can be guaranteed.

The application discloses a hydrochloric acid pickling waste liquid resource treatment process based on supergravity neutralization and ammonia closed loop, relates to the technical field of hydrochloric acid pickling waste liquid recovery treatment, and comprises the steps of purification and impurity removal, supergravity neutralization, solid-liquid separation, ammonia recovery and product preparation, etc. The supergravity reaction device is used to realize high-speed and high-efficiency neutralization of the waste liquid and ammonia gas, and through the reaction of calcium oxide and the neutralization product, i.e. ammonium chloride, ammonia gas is recovered under negative pressure and is used in the neutralization step again, forming an ammonia closed loop cycle. Meanwhile, the valuable components in the waste liquid are converted into high-purity iron red products and calcium chloride products in the whole process, and high-quality purified water is recovered. The application solves the problems of high energy consumption, low efficiency, insufficient resource recovery and secondary pollution caused by the traditional hydrochloric acid pickling waste liquid treatment method, realizes clean and efficient disposal of the waste liquid and full-amount high-value recovery of resources, and has both economic benefits and environmental benefits.

The invention belongs to the technical field of biomedical materials, and particularly relates to oxygen-enriched hydrogel for culturing vascular organs and a preparation method thereof.The preparation method comprises the steps that hyaluronic acid carboxyl and cysteine amino are covalently bound to obtain hyaluronic acid-cysteine conjugate HA-C, methacrylic anhydride and hydroxyl of an acellular matrix are subjected to an esterification reaction, and the hydrogel is obtained; the preparation method comprises the following steps: grafting methylacryloyl onto ECM (extracellular matrix) to obtain methylacryloyl modified acellular matrix ECM-MA; hA-C and ECM-MA are mixed and dissolved in a water phase, and a photoinitiator and PVP-coated calcium peroxide are added for cross-linking to form the oxygen-enriched hydrogel. The hydrogel is constructed by utilizing the sulfhydrylated hyaluronic acid and the double-bond functionalized acellular matrix by utilizing a click chemical reaction, and meanwhile, the calcium peroxide is added, so that the material has the function of releasing oxygen; the obtained hydrogel has biocompatibility, controllability and biological activity, and provides a high-performance material basis for biomedical application.

The application provides a groundwater in-situ remediation system and method of multiple biological permeation reaction wall coupling ultrasonic waves and plant remediation, the groundwater in-situ remediation system comprises a multiple biological permeation reaction wall, a PLC control system and an artificial plant ecological remediation area, the multiple biological permeation reaction wall is arranged in a funnel-gate type engineering, the funnel part blocks the contaminated groundwater through a vertical cement curtain, an ultrasonic generator module is arranged in front of the gate part of the multiple biological permeation reaction wall, the multiple biological permeation reaction wall is divided into two layers, the filling material of the first layer permeation reaction wall is mainly composed of zero-valent iron, iron oxide and construction waste, the filling material of the second layer biological permeation reaction wall is mainly composed of high-performance biological adsorption zeolite and ORC slow-release material calcium peroxide, a microbial bacteria liquid injection pipe is arranged in the second layer biological permeation reaction wall, and monitoring wells are arranged on the two sides of the multiple biological permeation reaction wall and the artificial plant ecological remediation area.The application can treat and remediate multiple composite pollutants at a time, and the pollutant degradation efficiency is improved.

The invention discloses a device for synthesizing calcium peroxide through gas-liquid-solid three-phase electro-catalysis and application, the device comprises a plurality of modules which are arranged in sequence, and the modules are a cathode gas module, a cathode electrode, a cathode liquid-solid cavity module, a proton exchange membrane, an anode electrode of a porous structure, an anode reaction cavity module and a baffle in sequence from left to right; the surface of one side of the cathode gas module is provided with a bionic vein flow channel, the surface of a cathode electrode is provided with a graded porous hydrophobic coating, and the coating faces the cathode liquid-solid cavity module; an open-loop stirring area is arranged in the cathode liquid-solid cavity module, and a stirring device is arranged in the area; every two adjacent modules are sealed through a rubber gasket. According to the device, through innovative structural design, the technical bottlenecks that an existing electro-catalytic reactor is low in mass transfer efficiency, electrodes are prone to inactivation and operation is unstable are solved, and a reliable solution is provided for green industrial production of calcium peroxide.

The application discloses a kind of composite drug-loaded nanoparticles based on calcium peroxide carrier, which is formed by the surface of hyaluronic acid modified calcium peroxide nanoparticles loaded with polylysine-dihydrophenophor e6 (Ce6) as carrier. pll The composite drug-loaded nanoparticles CaO2@HA / Ce6 are spherical particles with a particle size of about 100nm. pll In the application, Ce6 is converted into Ce6 by polylysine modification, and then combined with hyaluronic acid modified calcium peroxide nanoparticles. pll Ce6 is uniformly loaded on the surface of the composite drug-loaded nanoparticles CaO2@HA / Ce6. pll The application solves the problem that Ce6 cannot be attached to the surface of CaO2 nanoparticles. pll The prepared nanocomposite particles have uniform particle size and high specific surface area. pll After the combination of Ce6 and CaO2@HA, as a good bacterial microenvironment response material, the anoxic condition of bacterial site can be improved, and the photodynamic therapy can be enhanced. On the other hand, the biocompatibility and delivery efficiency of Ce6 are improved, so that significant bactericidal effect can be achieved at low dose.

The application relates to a Fenton-like composite material, in particular to a self-activated Fenton-like composite repair material and a preparation method and application thereof, the composite repair material is CaO2@Fe3O4@BIP-BC, a protein imprinting biochar is used as a matrix, magnetite serving as an activator and calcium peroxide serving as a slow-release oxidant are sequentially loaded on the surface. Compared with the prior art, the application has the advantages that (1) the biochar surface active groups and calcium peroxide improve the high efficiency and long-acting property of the Fenton-like process, (2) the protein imprinting improves the selectivity of the removal of target harmful bacteria and harmful bacteria genes, (3) the biochar simultaneously loads the calcium peroxide and the magnetite, the simultaneous addition of the activator and the oxidant is realized, and the use cost and the operation complexity are reduced. The method solves the problems that the traditional Fenton-like oxidation treatment has poor specific removal effect on harmful bacteria and harmful bacteria genes in the environment, the treatment time is short, the required dosage is high, secondary pollution is serious, and the activator and the oxidant need to be used separately.

The invention provides an anti-tumor targeting nano material and a preparation method thereof, and belongs to the field of novel targeting nano drugs. The method comprises the following steps: stirring and mixing up-conversion nanoparticles, calcium peroxide nanoparticles, manganese chloride and a chemotherapeutic drug in a water phase to obtain a drug-loading core; cystamine and 3-aminophenylboronic acid are dissolved in water, EDC and NHS are added, a first amidation reaction is carried out, and a cross-linking agent is obtained; dispersing the drug-loading core in a polyacrylic acid solution, adding a cross-linking agent, and then carrying out a cross-linking reaction to obtain an intermediate product; activating carboxyl on the surface of the intermediate product, and then carrying out second amidation reaction with cRGD-PEG-NH2, so as to obtain the anti-tumor targeting nano material. According to the application, a multifunctional nano platform integrating targeted enrichment, double-response precise drug release, chemotherapy-chemical kinetics-immune collaborative treatment and up-conversion imaging tracing is constructed, and specific efficient killing of tumors and inhibition of metastasis and relapse of the tumors are realized.

This invention relates to the field of hemostatic materials technology, and more particularly to a kaolin-based multifunctional hemostatic microsphere and its preparation method. The preparation method includes the following steps: kaolin-calcium peroxide composite material and sodium alginate are mixed evenly in water, then added dropwise to a zinc chloride solution. After separation and freeze-drying, the kaolin-based multifunctional hemostatic microspheres are obtained. The kaolin-calcium peroxide composite material is prepared by the following method: kaolin, ammonia, polyethylene glycol, and hydrogen peroxide are added sequentially to a calcium chloride aqueous solution with stirring. After the reaction is complete, the mixture is centrifuged, washed, and dried to obtain the kaolin-calcium peroxide composite material. The kaolin-based multifunctional hemostatic microspheres prepared by this invention have antibacterial properties, and their hemostatic performance, applicability, and stability are enhanced.

The present invention discloses the application of calcium peroxide pretreatment coupled with two-phase anaerobic digestion in promoting methane production. The invention utilizes calcium peroxide pretreatment technology to give play to the advantages of the separation of the acid-producing phase and the methane-producing phase in the two-phase anaerobic digestion process, effectively promotes the enrichment of methanogenic functional bacteria in sludge anaerobic digestion, greatly improves the methane production rate, shortens the methane production hysteresis period, and realizes efficient energy conversion of sludge.

The application relates to a Fenton-like oxidation treatment method, in particular to application of a self-activation Fenton-like composite repair material, the composite repair material being CaO2@Fe3O4@BIP-BC, and taking protein imprinting biochar as a matrix, and magnetite and calcium peroxide being sequentially loaded on the surface. Compared with the prior art, the application has the advantages that 1) the biochar surface active groups and calcium peroxide improve the high efficiency and long-acting property of the Fenton-like, 2) the protein imprinting improves the selectivity of the target harmful bacteria and harmful bacteria gene removal, 3) the activation agent and the oxidant are simultaneously added, and the use cost and operation complexity are reduced. The method effectively solves the problems of the traditional Fenton-like oxidation treatment, such as poor specific removal effect on harmful bacteria and harmful bacteria genes, short treatment time, high required dosage, serious secondary pollution and the need of separate use of the activation agent and the oxidant, and realizes high efficiency and long-acting repair of soil and water bodies polluted by harmful bacteria and harmful bacteria genes through the Fenton-like reaction.

The application provides a metal polyphenol network-wrapped calcium peroxide nanoparticle and a preparation method and application thereof, and belongs to the technical field of tumor treatment. The metal polyphenol network-wrapped calcium peroxide nanoparticle has a protective effect on unstable calcium peroxide nanoparticles; the released metal ions catalyze hydrogen peroxide to generate hydroxyl radicals under acidic conditions, and then kill tumor cells, realize chemical kinetic therapy, can also consume glutathione, enhance the accumulation of active oxygen, and then enhance the anti-tumor effect; when dispersed into an acidic environment, the metal polyphenol network layer thereof can rapidly degrade, expose the calcium peroxide nanoparticles, and then explosively release a large amount of calcium ions and oxygen, which can more effectively activate calcium overload and relieve the tumor hypoxic microenvironment; by loading drugs, the effective accumulation of the drugs in the tumor site is improved, the combined treatment of chemical kinetic therapy and chemotherapy is realized, and thus the anti-tumor immune response is activated, and the anti-tumor effect is improved.

This invention relates to a deodorant, its preparation method, and its application, belonging to the field of deodorization technology. The invention provides a deodorant preparation method, specifically involving the following steps: a mineral-based deodorizing carrier, anhydrous calcium chloride, magnesium stearate, calcium peroxide, ferrous sulfate, basic copper carbonate, zinc oxide, and mesoporous silica are orderly mixed to obtain a composite powder. This powder is then mixed with a sodium silicate aqueous solution, kneaded, pressed into shape, and cured to obtain a raw blank. The raw blank is then immersed in a composite treatment solution containing silica sol, a silane coupling agent, and nano-titanium dioxide. After removal, it is dried and heat-treated to obtain the deodorant. The deodorant prepared by this invention can be applied to kitchens, bathrooms, and shoe cabinets, exhibiting excellent deodorizing effects.

The utility model discloses a kind of calcium peroxide concentration detection equipment, including detector main body, the detector main body front side near upper side is embedded with display screen, the front side of the detector main body is provided with protective soft pad, the protective soft pad is set on the outside of display screen, the detector main body is connected by connecting line and detection rod, detection head is set at the end of detection rod, buffer protection is played under the effect of protective soft pad, to avoid display screen directly touching ground and being damaged, when the water source of detection is turbid, first filter cartridge and second filter cartridge are screwed on detection rod, to play protection at detection head, reduce impurity pollution detection head, after detection is completed, detection rod is clamped and limited by spring and clamping frame on limiting frame, detection head part is in cleaning cylinder, sterilization cleaning is carried out to detection head by ultraviolet sterilization lamp, gas is further blown and cleaned by blowing pipe blowing to detection head, reduce detection head pollution.