73results about How to "The preparation process equipment is simple" patented technology

The invention discloses a method for preparing a photoluminescence carbon quantum dot. The method includes the following steps of drying and dehydrating a solid residue obtained after squeezing soybeans into soya-bean milk, placing the dried and dehydrated solid residue in an electrothermal blowing dry box to heat and carbonize to obtain a crude product of the carbon quantum dot, grinding the crude product of the carbon quantum dot, sieving, dispersing the sieved crude product of the carbon quantum dot in deionized water, uniformly stirring, still standing, centrifuging, evaporating an obtained aqueous solution containing the carbon quantum dot, and freeze drying to form a powdered shape to finally obtain the photoluminescence carbon quantum dot. According to the method for preparing the photoluminescence carbon quantum dot, a household bean juice maker is used for obtaining soybean dregs which serve as raw materials, the source of the raw materials is wide, the photoluminescence carbon quantum dot is prepared through low temperature heating and carbonization, the operation is simple, the cost is low, the yield is high, the preparation process equipment is simple and easy, the operation can be completed within an extremely short time, and the method is easy to popularize.

The invention discloses a preparation method and application of an environment-friendly economic luminescent carbon quantum dot. The method disclosed by the invention mainly comprises the following steps of: with bagasse as a carbon source material, adding the bagasse into a mineralizer aqueous solution, and heating by using a hydro-thermal synthesis reaction kettle in a muffle furnace at the temperature of 180 DEG C for 4h; centrifuging a brownish black reaction liquid at a high speed, and then, collecting a supernatant for dialyzing; collecting the reaction liquid in a dialysis bag, cooling the reaction liquid, and then, transferring the reaction liquid into a freezer drier for freeze-drying to finally obtain a powdery carbon quantum dot. The preparation method disclosed by the invention has the characteristics of simplicity, convenience and rapidness in operation as well as simplicity in preparation process and equipment; and the environment-friendly economic luminescent carbon quantum dot is made of daily wastes as raw materials and is low in cost, environment-friendly and easy to popularize. The carbon quantum dot prepared by the invention has the excellent characteristics of favorable dispersibility, water solubility, fluorescent stability, biocompatibility and the like, and is successfully applied to living cell imaging and marking.

The invention relates to a preparing method of an amino carbon quantum dot fluorescence silicon substrate imprint sensor and belongs to the technical field of preparation of an environment function material. The preparing method comprises the following steps: dissolving citric acid and a polymine solution to obtain a transparent solution, then transferring to a hydrothermal reaction kettle for reaction, and then cooling to room temperature to obtain dispersion liquid of amino carbon quantum dots; centrifuging the dispersion liquid to obtain an amino carbon quantum dot solution; then taking the amino carbon quantum dots as fluorescence carriers, p-nitrophenol as template molecules, (3-aminopropyl) triethoxy silane as a function monomer, and tetraethoxysilane as a cross-linking agent so as to obtain a fluorescence molecular imprinted polymer to be used for optical detection of p-nitrophenol. The amino carbon quantum dot fluorescence molecular imprinted polymer has very good optical and pH stabilities and has te capacity of selectively recognizing p-nitrophenol.

The invention relates to a preparation method of an amino CQD (carbon quantum dot) fluorescence and 4-nitrophenol molecularly imprinted sensor and belongs to the technical field of environment function materials. According to the method, firstly, citric acid and polyethyleneimine are added to water and dissolved, and a transparent solution is obtained; the transparent solution is transferred to a hydrothermal reaction kettle, is heated, reacts and is cooled, and an amino CQD dispersion liquid is obtained; the dispersion liquid is centrifuged, and an amino CQD solution is obtained; the amino CQD solution and ethanol are added to a flask, 4-nitrophenol, AM (acrylamide), EGDMA (ethylene dimethacrylate) and AIBN (2,2'-azobis(2-methylpropionitrile)) are added, N2 is introduced for oxygen removal, after two steps of polymerization, a product is washed with water and ethanol, unreacted substances are removed, and the product is dried in a vacuum drying oven; 4-nitrophenol as a template molecule is eluted by an eluent, and the CQD fluorescence molecularly imprinted polymer is obtained. The fluorescence molecularly imprinted polymer has better optical stability and can rapidly recognize and optically detect 4-nitrophenol.

The invention discloses a visible-light-induced photocatalyst bismuth tungstate nano-chip. A preparation method of this chip comprises the following steps: 1), subjecting bismuth nitrate and glycerol to solvothermal reaction in isopropyl alcohol solvent, and filtering, washing and drying to obtain bismuth glycerol; 2), dispersing the bismuth glycerol evenly in sodium tungstate solution, adjusting PH of an obtained solution system to 0-2, carrying out hydrothermal reaction, and filtering, washing and drying to obtain nano bismuth tungstate. The bismuth nitrate, the glycerol and the sodium tungstate are used as main materials, bismuth tungstate nano-chip powder is prepared by using a two-step method, related preparation equipment is simple, reaction conditions are mild, energy consumption is low, the technique is unique and novel, obtained finished sodium bismuth molybdate has grain size of 20-40 nm and may be directly used as a photocatalyst for degrading organic pollutants by photocatalysis in visible light.

The invention belongs to the technical field of environmental protection, and provides a preparation method of a composite metal oxide ozone catalyst, which comprises the steps of: soaking industrial-grade gamma-Al2O3 with a dilute sulfuric acid solution, washing the industrial-grade gamma-Al2O3 with deionized water to achieve a neutral state, and boiling and drying the industrial-grade gamma-Al2O3 to obtain an activated gamma-Al2O3 sphere ball carrier; and sequentially putting the activated gamma-Al2O3 sphere carrier into a cerous nitrate solution and a cobalt nitrate solution, performing water bath impregnation, drying and the like to obtain the gamma-Al2O3 sphere carrier loaded with a cerous nitrate precursor and a cobalt nitrate precursor, and calcining the gamma-Al2O3 sphere carrier to obtain the final product composite metal oxide ozone catalyst CoO-CeO/gamma-Al2O3. The COD removal efficiency of the catalyst is 4.3%-11.9% higher than that of similar products sold in the market, the ammonia nitrogen removal efficiency of the catalyst is 28.2%-37.1% higher than that of similar products sold in the market, the catalytic efficiency of the catalyst is high, the catalyst has high stability, and the catalyst is widely applied to the actual water treatment process and has a wide market prospect.

The invention discloses a bell-shaped ZnO nanometer device material and a preparation method thereof. A new product is added for ZnO nanometer structural materials, and gaps of the prior art at home and abroad are filled. Soluble zinc salt, deionized water and hexamethylene tetramine are adopted as raw materials of the bell-shaped ZnO nanometer device material and mixed and dissolved to generate the bell-shaped ZnO nanometer device material by a one-step ultrasonic irradiation process, the bell-shaped ZnO nanometer device material is bell-shaped, a nanometer tube and a nanometer bar are automatically assembled to form the bell-shaped ZnO nanometer device material, the basic structure of the nanometer tube (a bell cover) is a six-prism-shaped tube, a tube opening of the nanometer tube is hexagonal, deformation shapes include a triangle and a diamond, and the nanometer bar (a bell tongue) is cylindrical. The bell-shaped nanometer structure is better in scattering property, two bells are connected locally to form a coaxial cable structure, and a plurality of bells are gathered together to form a trumpet-flower structure. The bell-shaped ZnO nanometer device material is novel in structure and can be applied to fields of medical antibiosis, photoelectric devices, gas sensors, solar batteries and the like.

The invention relates to the field of carbon quantum dot preparation, and particularly relates to a preparation method of silicon doping carbon quantum dots by adoption of a solvothermal method and applications thereof. The preparation method includes: adding hydroquinone into a stainless steel high-pressure reactor the liner of which is polytetrafluoroethylene; adding acetone according to a ratio that 5 mL of the acetone is added for per 0.97 g of the hydroquinone; adding dropwise silicon tetrachloride into the reactor, putting the sealed reactor in an air dry oven, heating at 150-220 DEG C for 1-5 h, cooling to room temperature, and concentrating and evaporating the liquid mixture in the reactor to dryness by adoption of a rotary evaporation manner to obtain the silicon doping carbon quantum dots. The preparation method is simple, efficient and mild, and is low in operation cost and simple in preparation process equipment. The prepared silicon doping carbon quantum dots can be applied in cell biological imaging.

A synthetic diesel oil is prepared from the desulfurized heavy benzol as main raw material, adding proper quantity of kerosene and light diesel oil, further adding small amounts of cetane, number improver, viscosity index improver and flowability improver through mixing. Its advantages are high cetane number, heat value and power, low oil consumption, and high start-up performance.

The invention relates to casing smooth muscle collagen preparation method and functional study. In the method, smooth muscles in casing of animals such as sheep and cattle are used as raw materials, and collagen is extracted from the smooth muscles in the casting by processes of washing, acidic and alkaline treatment, heating, stewing, cooling, soaking in alcohol, drying and crushing; and the treated casing smooth muscle collagen is yellowish solid particles. The method has the advantages that: the process flow is simple; the equipment is easy to configure and operate; the energy consumption is low; and the yield is high. The functional study on the casing smooth muscle collagen particles shows that the casing smooth muscle collagen can be developed as a novel assistant medicament for treating gastrointestinal ulcer, diabetes, cancers and other diseases, can serve as a health-care product for promoting digestion and absorption, protecting human gastroenteric mucosa and improving body immune function, can be used as a component of toothpaste for protecting teeth and treating dental ulcer, can be used as a component of cosmetics and has special skin-beautifying, skin-care and anti-wrinkle functions.

The invention discloses a method for synthesizing carbon quantum dots from water chestnuts and application of the carbon quantum dots and belongs to the technical field of nanometer materials. The method includes mixing ground water chestnuts with deionized water, reacting for a period of time in a microwave oven, taking a reaction product out of the microwave oven, naturally cooling to a room temperature, adding deionized water into the cooled reaction product, removing insoluble substances by centrifugation, and subjecting liquid supernatant to dialysis and freeze drying so as to obtain carbon quantum dot powder. The method has the advantages that large-scale preparation can be achieved because of widely available raw materials, a preparation process is simple and rapid, the prepared carbon quantum dots are high in stability and fluorescence quantum yield and excellent in water solubility and can be used for analyzing heavy metal ions in a water body.

The invention relates to a Cu (I) coordination polymer green light emitting material and a synthesis method thereof. The coordination polymer green light emitting material has a chemical formula: {[Cu2 (SQPA)].(4,4'-bipy) 1.5.H2O].H2O]}n, wherein n is greater than 1; the material can be excited by visible light to emit green fluorescence. The light emitting material can meet requirements for the electronic industry, public information display, bioassay lighting, electroluminescent materials, large-screen display and the like. The preparation process and equipment are simple, starting materials are cheap and readily available, cuprous ions are contained in the material by the redox reaction between reactants. The material has good crystalline, no toxicity, no pollution, high thermal stability, excellent luminescent properties and is suitable for small and medium-scale industrial production.

The invention discloses a method for catalyzing and synthesizing a spiral carbon nano material by using water-soluble alkali metal carbonate. The method comprises the following steps of: synthesizing a catalyst precursor; putting the catalyst precursor into a tubular reactor in which temperature can be precisely controlled, feeding helium and thermally treating the catalyst precursor to obtain catalyst alkali metal carbonate nano particles, wherein the thermal treatment temperature is between 400 and 600 DEG C and the thermal treatment time is 3 to 10 hours; after thermal treatment, stopping feeding the helium, then feeding acetylene gas immediately, and catalyzing and splitting the acetylene on the surfaces of the catalyst alkali metal carbonate nano particles, wherein the reaction temperature is between 400 and 600 DEG C and the reaction time is 3 to 8 hours; and thus obtaining the black spiral carbon nano material. In the method, the adopted catalyst is the water-soluble alkali metal carbonate, so the water-soluble alkali metal carbonate can be washed away conveniently and the pure spiral carbon nano material can be obtained; furthermore, the method is environment-friendly and pollution-free; and preparation process and equipment are simple, the reaction temperature is low, the cost is low and large-scale production can be realized.

The invention relates to a Tb coordination polymer green luminescent material containing a pyridine carboxylic acid derivative with a conjugated structure. The Tb coordination polymer green luminescent material is characterized in that the chemical formula of the coordination polymer is [Tb(tcptpy)(H2O)2.2H2O]n, wherein n is greater than 1, the ligand H3tcptpy is 4-(2, 4, 6-tricarboxyphenyl)-4, 2': 6',4''-dipyridyl, the coordination polymer crystal basic unit belongs to a monoclinic system, the space group is P21/c, the chemical formula is C24H16N3O8Tb, the unit cell parameters are as follows: alpha = 90 degrees, beta = 95.143 (3) degrees and gamma = 90 degrees, and the luminescent material can be excited by near ultraviolet light and emit bright green fluorescence. The Tb coordination polymer green luminescent material is low in raw material cost, simple in preparation process equipment, excellent in comprehensive performance and suitable for industrial production, and the material can meet the requirements of the application fields of electronic industry, public areas display, illumination and environmental ion detection.

The invention relates to a polymer green luminescence material containing Zn-Tb mixed metal and a preparation method of the polymer green luminescence material. The chemical formula of the coordination polymer is {[Tb3(HMIDC)7.6H2O][Zn6(bipy)2.3H2O].6H2O}n, wherein n is larger than 1. The material can be excited by near ultraviolet and emit strong green fluorescence. The prepared polymer green luminescence material containing Zn-Tb mixed metal is good in crystal crystallinity, free of toxicity and pollution, high in heat stability, good in luminescence property and low in raw material cost. Equipment used in the preparation process is simple, the method is easy and convenient to implement and suitable for mass production, and the material can meet requirements of the application fields of display, information and illumination in the electronic industry, public places, household appliances and the like. The material has broad application in the aspects of rare-earth three-base-color fluorescent lamps, display of large-screen high-definition color television sets, rare-earth phosphor luminescence materials and the like.

The invention discloses a method for synthesizing copper nano-clusters modified by silane in one step and application of the copper nano-clusters modified by the silane in detecting trace water-content in an organic solvent. The preparation method for the synthesizing copper nano-clusters modified by silane comprises the step that copper salt is placed in anhydrous acetonitrile, then the silane substituted by mercapto groups is added, stirring is conducted for 20-40 min under a sealed room-temperature condition, and the copper nano-clusters modified by the silane are obtained. Ultrasensitive detection of trace water in the organic solvent is achieved through the open pattern of a fluorescence signal. The method for synthesizing the copper nano-clusters modified by the silane in one step and the application of the copper nano-clusters modified by the silane in detecting the trace water-content in the organic solvent has the characteristics that the operating cost is low, preparation process equipment is simple, the reaction condition is gentle, the reaction speed is high, and popularization is easy.

The invention relates to a preparation process for improving the hydrogen storage performance of an AB2C9 La-Mg-Ni-based alloy. The alloy has a chemical formula La2-xTixMgNi9 (x is 0.1, 0.2 or 0.3); and the purities of La, Ti, Mg and Ni serving as elements of the alloy are all more than 99.9 percent. The preparation process comprises the step of performing annealing treatment on the La2-xTixMgNi9 alloy (x is 0.1, 0.2 or 0.3) prepared by a magnetic suspension induction smelting method in vacuum under the protection of argon, wherein the annealing temperature is between 800 and 900 DEG C and the annealing time is 10 hours. Compared with the as-cast alloy, the alloy subjected to annealing treatment has the advantages of increasing the hydrogen absorption capacity, reducing the pressure of the hydrogen absorbing and discharging platform, improving the electrochemical property and the like. The process has great significance for promoting the practical process of the AB2C9 La-Mg-Ni-based alloy.

The invention relates to a red luminescent polymer material containing Zn-Eu (Zinc-Europium) mixed metal and a preparation method of the red luminescent polymer material. The chemical formula of the polymer red luminescent material is as follows: {[Eu(PBDA)2.2H2O][Zn(PBDA)2Cl2]}n, wherein n is more than 1, and the material can be stimulated by near ultraviolet and emit the bright red fluorescent light. The preparation method of the polymer red luminescent material containing the Zn-Eu mixed metal is as follows: firstly, preparing an organic ligand; secondly, preparing a precursor solution; and thirdly, preparing a luminous material. The red luminescent polymer material prepared by the invention is better in crystal crystallinity, higher in thermostability, more excellent in luminescence property, lower in raw material cost, and free from toxicity and pollution; and the red luminescent polymer material is simple in preparation technology and device, excellent in comprehensive property, and suitable for industrial production, so that the material can meet displaying requirements in electronic industries and public places and requirements on fields of display, information, illumination and application, such as household appliances and the like.

The invention relates to a Tb coordination polymer luminescent material based on two rigid ligands and a preparation method of the Tb coordination polymer luminescent material. The chemical formula ofthe luminescent material is {[Tb(Tfpa)3 Tfba(phen)3.3H2O]}n, wherein n is greater than 1, Tfpa is 3,4,5,6-tetrafluoro-1,2-phthalic acid, Tfba is 2,3,4,5-tetrafluoro-benzoic acid, and phen is 1,10-phenanthroline. The material can be excited by near ultraviolet light and can emit green fluorescence. The polymer luminescent material prepared by the preparation method provided by the invention is better in crystallinity, free of toxicity or pollution, high in thermal stability, good in luminescent property, low in raw material cost, simple in preparation process equipment and suitable for industrial production, and can meet the requirements of rare earth fluorescent powder, fluorescent lamps with three primary colors, display in public places and lighting application fields.