262 results about "Indium chloride" patented technology

The invention relates to a novel ZnIn2S4 / NH2-MIL-125(Ti) composite visible-light catalyst and belongs to the technical field of photocatalysis. The novel ZnIn2S4 / NH2-MIL-125(Ti) composite visible-light catalyst is characterized in that ZnIn2S4 is nanosheet-shaped and is uniformly distributed on the surface of lumpy NH2-MIL-125(Ti), and the mass percent of the NH2-MIL-125(Ti) is 20.0% to 6.0%. A preparation method comprises the steps: (1) dissolving a certain amount of tetrabutyl titanate and 2-amino terephthalic acid in a mixture solution of N,N-dimethylformamide and methanol, and carrying out a crystallizing reaction for 48 hours in an autoclave at the temperature of 150 DEG C, so as to obtain the NH2-MIL-125(Ti); (2) dispersing the synthesized NH2-MIL-125(Ti) into a certain volume of ethanol in an ultrasonic dispersion manner, then, sequentially adding a certain amount of propanetriol, indium chloride, zinc chloride and thioacetamide into the dispersion while carrying out stirring, carrying out a crystallizing reaction for 10 hours in an autoclave at the temperature of 180 DEG C to 200 DEG C so as to obtain a solid product, and subjecting the obtained solid product to filtrating, washing and drying, thereby obtaining the ZnIn2S4 / NH2-MIL-125(Ti) composite visible-light catalyst. The preparation method of the composite visible-light catalyst is environmentally-friendly and is simple in process. The prepared composite catalyst has very high visible-light catalytic activity and has a potential application value in photocatalytic hydrogen production using solar energy.

The invention relates to a new preparation method of a ZnIn2S4 / TiO2Z system composite photocatalyst. The new preparation method comprises the following steps: (1) taking commercial P25 and sodium hydroxide solution as raw materials, performing hydrothermal treatment at 180DEG C for 48h, and performing replacement with H+ to obtain a H2Ti3O7 nanobelt, performing hydrothermal treatment through dilute sulfuric acid at 100DEG C, and performing high temperature calcination at 600DCG C to obtain a TiO2 nanobelt with rough surface; and (2) weighing zinc chloride, indium chloride, and thioacetamide according to a 1:2:4 molar ratio of Zn, In and S, and dissolving the zinc chloride, indium chloride, and thioacetamide into ethylene glycol to obtain a mixture, then dispersing the obtained TiO2 nanobelt into the mixture ultrasonically, performing treatment at 120DEG C for 2h, performing centrifugation and separation on the obtained mixture, and then performing oven-drying for 10h to obtain the ZnIn2S4 / TiO2Z system composite photocatalyst. According to the new preparation method, the obtained novel composite photocatalyst has an excellent performance on catalytic reduction of CO2 under a simulated sunlight condition; and the raw materials are inexpensive, and the technology is simple, so that the product cost is effectively reduced, a light absorption range is broadened, and utilization ratio of sunlight is improved, and the composite photocatalyst has a very high practical value and an application prospect.

The invention relates to a preparation method for an indium oxide (In2O3) nanometer material, and belongs to the technical field of preparation of inorganic materials. The preparation method comprises the following steps: firstly, carrying out a hydrothermal reaction on indium chloride to prepare indium hydroxide (In(OH)3) nanometer particles under the condition of taking lemon acid and urea as additives; and then carrying out a thermal calcination treatment to obtain the spherical In2O3 nanometer material. The method has the advantages of low cost, simplicity in production process, and easiness in industrial large-scale production. The prepared nanometer chromium oxide is a spherical particle with the diameter of about 30nm, and has the advantages of uniform particle distribution, high purity, good dispersity and large specific surface area. Therefore, the prepared nanometer chromium oxide is suitable for the fields of solar batteries, gas sensitive elements, flat-panel displays, electric light regulators, sensors and the like.

The invention relates to a synthesis method of a novel visible-light photocatalyst indium sulfide, belonging to the technical field of preparation of photocatalysts. The method comprises the following steps: weighing indium chloride tetrahydrate, dissolving the indium chloride tetrahydrate in deionized water, adding acetic acid to regulate the pH value to 1-3, and adding thioacetamide solution, wherein the concentration of indium ions is 0.025 mol / L, and the In / S mol ratio is 1:4-1:10; heating the obtained mixed solution to constant temperature so as to carry out hydrothermal reaction for 4-8 hours while regulating the temperature to 80 DEG C, and cooling at room temperature; and carrying out vacuum filtration under reduced pressure, washing, and drying to obtain the orange indium sulfide powder. The indium sulfide prepared by the method provided by the invention is in a ball-flower shape, and has the advantages of large specific area and uniform size; and the indium sulfide powder is in a cubic structure. The indium sulfide can be used as a visible-light photocatalyst, and has good degradation effect on organic dyes (such as methyl orange).

The invention provides a method of preparing a flower type indium oxide gas-sensitive material with a hierarchical structure by adopting a solvothermal method. The preparation method concretely comprises the following steps: respectively adding a certain amount of indium oxide and a certain amount of sodium citrate into a dimethylformamide and deionized water mixed solution of certain mole ratio, fully mixing, then adding a certain amount of urea as a precipitator, evenly dispersing, sealing the mixed solution into an autoclave, performing hydrothermal reaction for certain time at specific temperature, centrifugally separating, washing and drying, placing the dried product in the air in a muffle furnace for calcinating, and thus obtaining the flower type indium oxide gas-sensitive material with the hierarchical structure. The method is simple in production technology, high in yield, low in cost and pollution-free, and mass production can be conducted. The prepared flower type indium oxide gas-sensitive material with the hierarchical structure is regular in shape, obvious in hierarchical structure of flower petals, smooth in surfaces of flower petals, large in specific surface, and mainly applied in the field of gas sensors.

The invention discloses a preparation method of a Cu-Zn-In-S quantum dot luminescent thin film. The preparation method comprises the following steps: (1) adding cuprous chloride, indium chloride, zinc salt, a capping agent and a surface coating agent to a non-polar high boiling point organic solvent so as to obtain a Cu, In and Zn mixed precursor solution, stirring and heating under the atmosphere of nitrogen or inert gas so as to form a clear transparent solution; (2) adding an oleylamine solution of sulfur to the clear transparent solution obtained in the step (1), and heating for reacting so as to prepare a Cu-Zn-In-S quantum dot solution; (3) separating so as to obtain Cu-Zn-In-S quantum dots; (4) mixing the prepared Cu-Zn-In-S quantum dots with a component A of an LED (Light Emitting Diode) pouring sealant; (5) uniformly mixing a component B of the LED pouring sealant with a mixture obtained in the step (4), removing air bubbles, then coating a product on a glass substrate, and curing at a room temperature so as to obtain the Cu-Zn-In-S quantum dot luminescent thin film. The fluorescence spectra of the Cu-Zn-In-S quantum dot luminescent thin film prepared by the method can be adjusted. The Cu-Zn-In-S quantum dot luminescent thin film has the excellent fluorescence property of the Cu-Zn-In-S quantum dots and the good machining property of an organic silicon adhesive AB.

The invention belongs to the technical field of quantum dot preparation, and specifically to a method for preparing copper-indium-sulfur (CuInS2) three-element quantum dots under a hydro-thermal condition. According to the method, common metal salt compounds such as copper chloride and indium chloride, and a sulfhydryl-containing carboxylic acid such as mercaptopropionic acid and mercaptosuccinic acid are adopted to synthesize copper-indium-sulfur (CuInS2) nanoparticles with the particle size of 2-4 nm and emission wavelength in the near infrared region under the hydro-thermal condition. Compared to other organic phase synthesis of the near infrared quantum dots, the method of the present invention has characteristics of less variety of the raw materials, cheap price, simple method, easy operation, good repeatability, and low requirements on equipment. Compared to the traditional quantum dots, the synthesized water-soluble quantum dots of the present invention have the following advantages that: the synthesized water-soluble quantum dots do not contain mercury, cadmium and other toxic metal elements, the emission peak is located in the near infrared region, the synthesized water-soluble quantum dots provide strong penetrabilities for cells and other biological tissues, and the synthesized water-soluble quantum dots can be widely used in immunological assays, nucleic acid hybridizations, gene analysis, cell classification and imaging and other fields.

The invention provides a method for preparing a monodisperse indium oxide nanometer porous microsphere, and belongs to the technical field of function materials. The preparation method particularly comprises the following steps: adding citric acid with a certain molar ratio in indium chloride aqueous solution, mixing intensively, adding moderate urea as a precipitant, and dispersing uniformly; sealing the mixed solution in an autoclave and conducting water thermal reaction for a period of time, and then centrifugalizating, washing and drying; calcining in a muffle furnace in air to obtain the monodisperse indium oxide nanometer porous microsphere. The method provided by the invention has low cost, simple manufacturing technology, high productivity, and is easy to realize industrialization and mass production. The indium oxide nanometer microsphere produced by the method has a neat appearance, uniform disperse, has a porous structure and a larger specific surface area, and can be applied in the field of solar cells, FPDs (Flat Panel Display), photo-electron devices, gas sensors and the like.

The invention discloses a preparation method of a copper and indium alloy ink, comprising the following steps: (1) dissolving copper chloride and indium chloride in ethylene glycol at 80-200 DEG C, then slowing dropwise adding ethylene glycol solution of sodium borohydride for reaction; carrying out centrifuge, washing and drying to obtain copper and indium alloy nanoparticles; (2) preparing solution according to volume ratio: ethylene glycol: methanol: ethylene glycol methyl ether=2-8: 1:2-6; (2) dispersing the copper and indium alloy nanoparticles obtained in step (1) according to mass ratio: copper and indium alloy nanoparticles : solvent=1 : 2-8 and evenly dispersing the mixture by ultrasonic waves to obtain the copper indium alloy ink. The invention also discloses an application method of the copper and indium alloy ink in preparing sulphur indium copper film or selenium indium copper film. In the invention, a low-cost chemical method is adopted to synthesize copper and indium alloy nanoparticles, the prepared film features compact and smooth surface and large film crystallite dimension after sintering and no obvious film miscellaneous phase.

The invention belongs to the technical field of composite semiconductor thin films and discloses an indium sulfide (In2S3) / graphene composite film, and a preparation method and application thereof. The In2S3 / graphene composite film is prepared by adding indium chloride, thiourea and polyvinylpyrrolidone to ethylene glycol to form a reaction precursor liquid, and subjecting a FTO conductive glass substrate spin-coated with graphene paste to a microwave hydrothermal reaction in a microwave oven at the power of 700 to 900W and at the temperature of 180 to 220 degrees centigrade. The In2S3 / graphene composite film has a uniform phase, good crystallization and high purity. The method uses a microwave assisted solution for synthesizing the nanometer In2S and graphene composite film, just requiressimple equipment and preparation processes, is low in cost and fast in speed, shortens the reaction time, and uses non-toxic and safe preparation reagents.

The invention relates to the technical field of material preparation and photocatalysis. The technical scheme comprises that a preparation method of an indium tin sulfide visible-light-induced photocatalyst comprises the following steps: (1) weighing stannic chloride pentahydrate and indium trichloride, dissolving stannic chloride pentahydrate and indium trichloride in a proper amount of deionizedwater, then weighing any one reactant of three sulfur sources, namely thioacetamide, thiourea or L-cysteine, adding the reactant into the uniformly stirred aqueous solution, adjusting the pH value to1-13, and continuously stirring for 2 h, wherein the molar ratio of tin tetrachloride pentahydrate to indium trichloride to the reactant is 1.5:4:8; (2) transferring the uniformly stirred solution into a hydrothermal reaction kettle, and carrying out a reaction for 10-12 h in an oven at the temperature of 140-180 DEG C; and naturally cooling to room temperature to obtain precipitates, respectively washing the precipitates with deionized water and absolute ethyl alcohol for multiple times, and carrying out vacuum drying at the temperature of 60 DEG C for 10 h to obtain an orange powder sample.The preparation method is simple in steps and low in cost.

The invention provides a method for preparing indium oxide nanoparticles of porous structures. The method specifically comprises the following steps: by taking indium chloride and dodecylamine as raw materials, performing a hydrothermal reaction, and performing calcination treatment, thereby obtaining the indium oxide nanoparticles of the porous structures. The method is simple in production process, free of expensive surfactant and relatively low in cost, and the prepared indium oxide can be used as a gas sensitive material, has good gas sensitivity on formaldehyde gases due to the porous structures, and thus has long-term application prospects in formaldehyde gas detection.