187results about How to "The preparation method is mild" patented technology

The invention discloses a heptatomic condensed ring benzotriazole receptor micromolecule and a preparation method and application thereof. The compound takes heptatomic condensed ring benzotriazole (B) with an alkyl chain as intercalated nucleus, and cyan group as n-type fullerene receptor material (BIC) of an electrophilic unit. The preparation method comprises the following steps: by taking 4,7-dibromo-5,6-dinitro benzotriazole compound as a raw material, sequentially introducing thienothiophene with an alkyl chain by stille coupling reaction, then performing loop closing, introducing the alkyl chain to N by nucleophilic substitution, introducing aldehyde group via Vilsmeier-Haack, and then introducing a polar conjugation unit by Knoevenage reaction, so as to obtain a BIC compound; the micromolecule forms definite conformation and good solubility, has an electron receptor unit with universality, obtains a high efficiency (PCE of 13%) on a solar cell, and thus is a photovoltaic material full of potential.

The invention provides an iron carbide particle, and a fabrication method and an application thereof. Iron carbide is a nanoparticle taking Fe5C2 as a main component, and a particle size is 1-100nm. The fabrication method of the iron carbide particle comprises the following steps that a carbonization inductive agent and a solvent are mixed to form a mixed solution, a mole ratio of the carbonization inductive agent to the solvent is 1:(100-600), the carbonization inductive agent is halogenated ammonium salt, and the solvent is a long-chain amine solvent with a boiling point greater than 250 DEG C; a zero-valent iron organic compound is added to the mixed solution which is heated to 180-200 DEG C in a protective atmosphere; a reaction system is controlled at 250-380 DEG C for 10-120min; solid-liquid separation is performed after the reaction system is cooled; and the iron carbide particle product is collected. The iron carbide particle takes Fe5C2 as a major phase, is in a nanoparticle shape, can show higher catalytic activity, and is particularly applicable to catalysis of fischer-tropsch synthesis.

The invention relates to a sponge composite metallic organic framework material for adsorption separation and belongs to the technical field of materials. According to the invention, a two-step in-situ growth method is adopted for loading MOFs (metallic organic framework material) into a duct in a sponge carrier. The MOFs is synthesized from following organic ligands and metal salts, wherein the organic ligands include pyrazine, trimesic acid, terephthalic acid, 2,5-dihydroxyterephthalic acid, and the metal salts include cupric fluosilicate, magnesium nitrate, zirconium chloride, cupric nitrate, chromic nitrate, ferric nitrate, aluminum nitrate and hydrates thereof. According to a preparation method provided by the invention, a large amount of MOFs loaded in the duct in the sponge carriercan be realized; MOFs load rate is high; load is stable; the defects of fragility and easiness in loss of MOFs powder can be overcome; a breakthrough experiment proves that the material provided by the invention has the characteristics of high CO2-absorbing capacity, high adsorption separation selectivity, stable adsorption separation property, and the like.

The invention discloses a non-steamed brick and a preparation method thereof. The non-steamed brick comprises the following components in percentage by weight: 60 to 85 percent of iron tailings, 5 to 18 percent of river sand, 8 to 20 percent of cement, and 0.5 to 3 percent of admixture, wherein the admixture is one or more of high-strength adhesive, water reducing agent and waterproof agent. The preparation method comprises the steps of proportioning, mixing, pressure molding and natural curing. Proved by practice, the non-steamed brick has simple component, low cost and excellent comprehensive performance; and the preparation method is mild in conditions and easy in operation.

The present invention discloses a tea extract-containing microemulsion, a preparation method and applications thereof. The tea extract-containing microemulsion comprises the following components by weight: 0.1% to 8% of tea extract, 30% to 70% of oil phase, 0.05% to 0.5% of synergistic agent, 10% to 50% of emulsifier, 0% to 20% of co-emulsifier and 1% to 5% of water; wherein the synergistic agent is ascorbic acid or/and citric acid, the tea extract is epigallocatechin gallate or/and theaflavin-3, 3'-digallate. The present invention also provides the preparation method and applications of the tea extract-containing microemulsion. The tea extract containing microemulsion has characteristics of uniform, transparent, stable property, strong oxidation resistance, and simple and controllable preparation method.

The invention belongs to the field of pharmacy, and discloses a biomimetic dopamine polymerization drug-loading nanometer transmitting and releasing system. The nanometer transmitting and releasing system comprises dopamine polymerization drug-loading nanoparticles prepared from dopamine and anti-tumor drugs, and biomimetic tumor targeted protein or polypeptide grafted to the surface of polydopamine. The dopamine disclosed by the invention coats drugs in the polydopamine through a polymerization drug-loading way, drug encapsulation efficiency is obviously improved, and drug loading capacity ishigh. Then, biomimetic tumor targeted protein or polypeptide is covalently grafted to the surface of the polydopamine, and the nanometer transmitting and releasing system is endowed with biomimetic characteristics and targeted functions. The nanometer transmitting and releasing system prepared by the invention has pH, ROS and optothermal triple response quick drug-releasing characteristics, through tumor targeting, a purpose of tumor chemotherapy-optothermal combined treatment can be realized, and the biomimetic dopamine polymerization drug-loading nanometer transmitting and releasing systemhas a good application prospect on an aspect of tumor targeting combined treatment.

The invention discloses a synthesis method of tourmaline. The method comprises the following steps: preparing a homogeneous solution with sodium, magnesium, aluminum, silicon, boron and other elementsat constant temperature, then adding precipitant sodium hydroxide to ensure the solution to reach a certain pH value, obtaining precipitate slurry, and then performing subsequent cleaning, filtrating, drying and calcining processes to prepare tourmaline powder. The method of the invention can be used to obtain the powder containing tourmaline directly, the conditions of the whole preparation method are mild, the method is easy to realize and the cost is low. The precipitate product can be dispersed and calcined to obtain nanometer tourmaline powder which can be conveniently used in fields such as medical treatment and health care, environmental protection, construction and the like.

The invention discloses a preparation for a silver phosphate nano ball-graphene composite material and photocatalysis application. The silver phosphate nano ball-graphene composite material is formed by in-situ growth silver phosphate nano balls decorated on the surface of graphene. In the composite material, the ratio of silver phosphate nano balls and the graphene is 100-25 milligram graphene oxide and the surface growth silver phosphate nano balls are 0.33 millimoles. The preparation method comprises steps of dissolving bovine serum albumin to distilled water, gradually dropping a silver nitrate solution, dropping a graphene oxide solution after a white colloid solution is formed, stirring for 2 hours, dropping a disodium hydrogen phosphate solution, stirring for four hours, conducting centrifugation, washing by using the distilled water, drying and obtaining the silver phosphate nano ball-graphene composite material. The composite material can serve as a visible-light-induced photocatalyst, and a photocatalysis experiment proves that the composite material has good visible-light catalytic activity. The preparation is simple and large-scale production can be achieved.

The invention discloses anti-blue-light multi-effect repair eye cream and a preparation method thereof. The anti-blue-light multi-effect repair eye cream is prepared from the following ingredients: isohexadecane, isononyl isononanoate, crambe abyssinica seed oil, cetostearyl alcohol, phytosterol oleate, tocopherol acetate, propyl hydroxybenzoate, phenoxyethanol, triethanolamine, brown algae extract, theta-glucan, menthe piperita leaf extract, chrysanthellum indicum extract, purslane extract, radix sophorae extract, geranium pelargonium extract, glycerin, sodium benzoate, bisabolol, farnesol, butanediol, glycerin polyether-26, bio-saccharide gum-1, 0.2% of hydrolysis sclerotium gum, lecithin, allantoin and glucosylrutin. The natural extract is added for compound use, and the compounding ratio is limited, rich nourishing ingredients are contained, blue light can be resisted, moisture is replenished, the skin around the eyes is moisturized, the delicate skin is repaired, dryness and dehydration phenomena are smoothed, tightness, elasticity and moistening are achieved, fine lines are reduced, skin aging is delayed, and the eyes are beautiful.

The invention discloses a nano-composite biological scaffold with multi-stage controllable through hole structure, and a preparation method and application thereof. The preparation method is combined with a water-in-oil type Pickering high internal phase emulsion template method and a 3D printing technology, the Pickering emulsion template takes an organic solution containing biodegradable polyester and hydrophobic modified silicon dioxide nanoparticles as an oil phase and deionized water as an aqueous phase, the oil phase and the aqueous phase are mixed and emulsified to form water-in-oil type Pickering emulsion, the emulsion is printed and formed by the 3D printing technology, and the nano-composite biological scaffold with the multi-stage controllable through hole structure is obtained. The preparation method provided by the invention is simple in operation, mild in preparation condition, low in requirement on equipment and suitable for industrialized production, the hole structure of the porous scaffold can be adjusted conveniently and rapidly by changing the preparation condition of the emulsion, the scaffold structure is regulated and controlled by writing different printing programs, and design and implementation of the hole structure are unified.

The invention relates to a defluorination adsorbent which comprises anion exchange resin and an inorganic defluorination adsorbent, wherein the inorganic defluorination adsorbent is in a layered crystal structure, deposited in the ducts of the anion exchange resin, and formed by a hydroxide of lithium, a hydroxide of aluminum and a hydroxide of lanthanum. The invention further discloses a preparation method of the defluorination adsorbent. The preparation method comprises the following steps that lanthanum salt and aluminum slat are dissolved in water containing ethyl alcohol, and a mixed solution is obtained; the anion exchange resin is added to the mixed solution, reaction is performed at the temperature of 60-80 DEG C, and then a strong caustic water solution is added for soaking; the processed anion exchange resin is added to the water solution of lithium salt, crystallization is performed at the temperature of 50-90 DEG C, and the defluorination adsorbent is obtained. According to the defluorination adsorbent, the absorption quantity is large, the absorption speed is high, the defluorination efficiency is high, and the defluorination adsorbent can be reused; the preparation method of the defluorination adsorbent is mild in condition, simple in technology and suitable for industrialization batch production.

The invention relates to a preparation method of porous graphene and belongs to the technical field of graphene super-capacitor materials. The technical scheme adopted by the invention is that the preparation method comprises the following steps: adding different proportions of hydrogen peroxide into an aqueous solution of graphene oxide, then adding a certain quantity of ionic liquid, fully and uniformly stirring, performing hydro-thermal reaction to obtain graphene gel, performing freeze-drying treatment to obtain the porous graphene. The porous graphene prepared by the preparation method provided by the invention is large in specific surface area and simple in preparation processes and has a wide application prospect in the fields of super-capacitors, sewage treatment, oil absorption and the like.

The invention provides a preparation method for matrix coal gangue and relates to a solid waste treatment process. The preparation method for the matrix coal gangue includes the following steps that coal gangue is smashed, and coal gangue particles are obtained; the coal gangue particles are mixed with water and acid, and a coal gangue particle mixture is obtained; the coal gangue particle mixtureis subjected to ozone aeration and ultrasonic treatment at the same time, and an activated coal gangue mixture is obtained; alkali is added in the activated coal gangue mixture, solid-liquid separation is performed, and activated coal gangue is obtained; and the activated coal gangue is mixed with an sodium alginate aqueous solution, and the matrix coal gangue is obtained through drying. According to the method, part of organic components, humic acid and micro elements, similar with coal, in the coal gangue are activated, the condition suitable for plant growth is formed, and the purposes ofchanging waste into wealth and achieving resource utilizing are achieved. It can be seen that from the embodiment, the coal gangue matrix is favorable for plant root growth, and avoids the top cover soil phenomenon easily happening to a turf type matrix; and the water retaining property is better than that of the turf type matrix.

The invention discloses a preparation method for a prostaglandin intermediate. The method comprises the step of: (1) mixing a compound represented by a formula II and a substitutive o-iodobenzoic acid type compound represented by a formula III to obtain a compound represented by a formula I, wherein R1 is C1-C4 straight chain or alkyl, phenyl or substitutive phenyl which contains branch chains; R2 is tetrahydropregnenolone (THP), silane radical substituted by trialkyl, alkyl acyl, benzoyl or benzoyl of which the benzene ring is provided with a substituent; and R3 is acetoxy.

The invention provides a preparation method of a modified lithium nickel manganese oxide cathode material. In the preparation method disclosed by the invention, phenolic resin is used as an adjuvant; a spatial structure is provided; a pure-phase LiNi0.5Mn1.5O4 electrode material having nanoscale ultra-fine particle diameter and good crystallization degree and particle diameter distribution is prepared in situ directly in a polymerization system; an electrode material coated by a metallic oxide is prepared through a sol-gel method; therefore, the material has better coating effect; furthermore, a secondary grinding process and a low-temperature long-time annealing process are adopted when the material is sintered; impure phases in the material are reduced easily; and thus, the cycle performance of the battery is improved. According to the preparation method disclosed by the invention, the material is modified through the nanoscale LiNi0.5Mn1.5O4 electrode material and the metal oxide coating process; in combination with the specific sintering and annealing process, the modified lithium nickel manganese oxide cathode material has relatively high cycle performance and stability; and furthermore, the preparation method provided by the invention is moderate in condition, and is applied to large-scale production and application.

The invention discloses a silicon dioxide-filled nano-cluster composite material. The silicon dioxide-filled nano-cluster composite material comprises silicon dioxide and at least two types of inorganic nano-crystals, wherein one type is the inorganic nano-crystals with a surface plasma resonance effect, and the other type is the inorganic nano-crystals in overlapping absorption with the first type of the inorganic nano-crystals; the at least two types of the inorganic nano-crystals are assembled to obtain nano-clusters; the silicon dioxide is distributed in the whole nano-clusters to form the nano-cluster composite material; the particle size of the inorganic nano-crystals is 1-100nm; and the diameter of the nano-cluster composite material is 50-1000nm. The nano-cluster composite material has the advantages of simplicity, convenience, easiness in obtainment and adjustable size and composition, and further has important significance in actual application. The invention further discloses a method for preparing the silicon dioxide-filled nano-cluster composite material and application.