38 results about "Zro2 nanoparticles" patented technology

The invention relates to a far-infrared and antistatic polyester functional fiber with good moisture absorption. Polyester is used as a base for the far-infrared and antistatic polyester functional fiber, carbon nano-tubes, ZrO2 nano-particles, TiO2 nano-particles, talc powder and dispersing agents are used as fillers for the far-infrared and antistatic polyester functional fiber, and the far-infrared and antistatic polyester functional fiber is prepared from the base and the fillers by means of melt spinning.

The invention discloses a Pt@ZrO2 photo-thermal catalyst with a hollow core-shell mesoporous structure, and a preparation method and an application thereof. The Pt@ZrO2 photo-thermal catalyst is prepared by embedding Pt nanoparticles into the interiors of hollow ZrO2 nanoparticles, wherein the weight percentage content of Pt is 0.1% to 0.5% on the basis that the weight percentage content of the catalyst is 100%. The preparation method comprises the following steps: (1) dissolving H2PtCl6.6H2O into purified water, adding sodium citrate as a reducing agent, then adding a surfactant, carrying outrefluxing at a high temperature, and carrying out cooling; (2) adding tetraethoxysilane and ammonia water, carrying out uniform mixing under stirring so as to form a suspension, carrying out centrifuging and washing, and carrying out redispersing in ethanol for subsequent usage; (3) adding zirconium n-butoxide to coat zirconium dioxide, and carrying out stirring, aging, centrifuging, washing anddrying; and (4) carrying out etching with an excess NaOH solution, and carrying out centrifuging, washing, drying and calcining. The Pt@ZrO2 photo-thermal catalyst provided by the invention has the following advantages: the preparation method is simple; photo-thermal catalytic oxidation of an organic pollutant is realized under the condition of 100 to 200 DEG C; the Pt@ZrO2 photo-thermal catalystremains basically unchanged activity after continuous and cyclic application for 30 times or above; and the Pt@ZrO2 photo-thermal catalyst has the characteristics of high efficiency, stability, recyclability and easy recovery.

The invention discloses ZrO2 with a micro/nano structure and a preparation method of ZrO2. ZrO2 is a multi-layer ZrO2 mesoporous microsphere which has a tertiary structure: an about 10-20 nm ZrO2 nano particle is used as a primary unit to be assembled into an about 100-200 nm ZrO2 nano sphere; the ZrO2 nano sphere as a secondary structure unit is assembled again into 1.0-2.0 micrometer ZrO2 microsphere. Beta-cyclodextrin and EDTA (edetic acid) are used as self-assembling mediums, the multi-layer ZrO2 microsphere with the micro/nano structure is prepared by using a beta-cyclodextrin inclusion and steric hindrance effect and an EDTA complexing action and adopting a hydrothermal method, favorably crystallized tetragonal zirconia can be obtained, without high-temperature calcinations, tetragonal and monoclinal mixed phase zirconia can be obtained after high-temperature calcinations, the preparation method is simple and novel, and the conditions are controllable.

The invention relates to a preparation method of a surface functionalized zirconia nano particle for a dental repair resin. The preparation method of the surface functionalized zirconia nano particle for the dental repair resin is characterized by comprising the following steps of: 1) preparation of dopamine methacrylate: reacting dopamine hydrochloride with methacrylic anhydride to introduce a double bond which can be chemically bonded with the dental repair resin on DOPA, so as to obtain grey DOPA methacrylate; and 2) preparation of a surface modified ZrO2 nano particle: introducing a double bond which can be tightly combined with the resin on the surface of the ZrO2 nano particle through the interaction of the DOPA component in DMA (dimethyl acetamide) and the ZrO2 nano particle to obtain the surface functionalized zirconia nano particle for the dental repair resin. When the surface functionalized zirconia nano particle is used for the dental repair resin, the obtained resin is high in bending strength. The preparation method disclosed by the invention is simple in process and low in production cost and has the effect of effectively improving a dental material.

The invention relates to a chemical coating material with resistance to geothermal water corrosion and a preparation method of the chemical coating material, and belongs to the technical field of newenergy materials. Nano zirconium dioxide is added to a coating solution, so that a three-dimensional network skeleton is formed between Ni-P particles and ZrO2 nanoparticles, the Ni-P particles are filled with the ZrO2 nanoparticles, a coating is subjected to crystallization and Ni and P desolventizing decomposition under the action of heat treatment, P atoms diffuse and are subjected to lattice distortion, and Ni and intermetallic compounds are formed. Meanwhile, the electrode potential of Ni is higher than the electrode potential of Cu, a uniform film is formed on the surface of the coating,and the passivation film can effectively block the corrosion process and can also significantly reduce porosity of the coating grain refinement coating, effectively inhibit contact between a corrosion medium and a substrate, and improve corrosion resistance. Phosphate has the function of a buffer agent and promotes adsorption of a salt film protective layer to form a uniform film layer, oxalic acid can activate the surface of the steel substrate, borax can retard corrosion of the coating from the external environment, and corrosion resistance of the coating is enhanced.

The invention discloses a fireproof transparent architectural coating and a preparation method thereof, which is composed of the following components in parts by weight: 5-8 parts of mica powder, 1-3 parts of Y2O3-ZrO2 nanoparticles, 1-2 parts of sodium silicate, 5-8 parts of pentaerythritol, 7-12 parts of film-forming agent, 1-2 parts of sodium fluoroaluminate, 30-90 parts of water, 3-5 parts of adhesive, 3-5 parts of thickener, 2 parts of flame retardant -5 servings. The paint prepared by the above formula in the present invention has the characteristics of high melting point and transparency. It can not only form a layer of fire-proof coating that is not easy to melt under high temperature and isolate the air on the surface of wooden building materials, but also does not cover the texture of wooden building materials. , to maintain the aesthetics of building materials. The invention solves the problem that the existing paints do not have fireproofing and aesthetics, and provides a fireproofing transparent building paint with low cost and simple preparation.

The invention discloses a method for detecting luteolin by combining solid-phase extraction and an electrochemical sensor, and belongs to the technical field of analytical chemistry. According to themethod, ZrO2 nanoparticle and chitosan doped graphene aerogel modified silica gel is used as a solid phase extraction column of an extraction material to extract luteolin in a to-be-detected sample, and ZrO2 nanoparticle and chitosan doped graphene aerogel modified glassy carbon electrode is used as an electrochemical sensor platform to detect the luteolin in the extract liquor. According to the invention, the ZrO2 nanoparticle and chitosan doped graphene aerogel is used as electrode materials, and the ZrO2 nanoparticle and chitosan doped graphene aerogel modified silica gel is used as the extraction material, so that the adsorption selectivity is high, and detection signal amplification is realized; the preparation method is simple and easy to implement and relatively low in cost; and thesolid-phase extraction and the electrochemical sensor are combined, so that the interference of a sample matrix is avoided, the detection sensitivity and accuracy of the method are improved, and theoperation is simple.

The invention belongs to the preparation field of inorganic nanometer materials, and specifically relates to a method for preparing a ZrO2 nano particle with uniform particle size distribution and surface modified metal cations. The method comprises the steps of adding 30-50 millimole of alkali into an organic solvent without water; fully agitating; adding 5-10 millimole of zircon salt into the solution; agitating until complete dispersion to form a colloid; adding 0-10ml of oleic acid in droplets; placing the colloid in a stainless reactor with an inner polyfluortetraethylene lining; sealing well; and placing the reactor in a constant temperature oven with the temperature of 120-180 DEG C for reaction for 24-36 hours, so as to obtain cubic phase ZrO2 nano particles at the lowermost layer. The prepared nano particles have particle size of 4.5nm or so, and narrow dispersion, can stably disperse in solvents, such as water, ethanol, etc. and have practical application value. The method has the advantages of simplicity, less time consumption, high yield, lower pressure in reaction process and suitability for industrialized production.

The invention discloses a charge storage device based on oxide nanoparticles formed by in-situ annealing, and a preparation method thereof. A layer of metal Zr thin film is grown by virtue of a pulsedlaser deposition method; and in-situ oxygen annealing treatment is carried out to form a ZrO2 nanoparticle storage medium. The preparation method of the charge storage device based on the ZrO2 nanoparticles formed by the in-situ annealing is simple in operation and can realize large-scale preparation.

The invention discloses a preparation method of black mesoporous carbon loaded ZrO2 nanoparticles. The preparation method comprises the following steps: S1, carrying out solvothermal reaction on terephthalic acid and zirconium tetrachloride in a mixed solvent, centrifuging, and taking the precipitate to obtain a UIO-66 precursor; and S2, taking the UIO-66 precursor, and calcining the UIO-66 precursor in an inert gas atmosphere to obtain the black mesoporous carbon loaded ZrO2 nanoparticles. The invention further discloses the black mesoporous carbon loaded ZrO2 nanoparticles, and the black mesoporous carbon loaded ZrO2 nanoparticles are prepared according to the preparation method of the black mesoporous carbon loaded ZrO2 nanoparticles. The invention also discloses an application of the black mesoporous carbon loaded ZrO2 nanoparticles in seawater desalination. The black mesoporous carbon loaded ZrO2 nanoparticles have a multi-layer pore structure and are high in specific surface area, good in sunlight absorption capacity and high in photo-thermal conversion efficiency.

The invention discloses a ZrO2 nanoparticle modified three-dimensional graphene material and application thereof in organophosphorus pesticide detection, and belongs to the technical field of analytical chemistry. The ZrO2 nanoparticle modified three-dimensional graphene material disclosed by the invention is a three-dimensional graphene material constructed by taking a metal net as a matrix, bonding poly(diallyldimethylammonium chloride) reinforced graphene oxide aerogel and depositing ZrO2 nanoparticles on the surface of the graphene aerogel; a solid-phase extraction column prepared by taking the material as a filling material can realize high-efficiency extraction of the organophosphorus pesticide, and then the organophosphorus pesticide is analyzed and detected by using high performance liquid chromatography. The method for detecting the organophosphorus pesticide by adopting the solid-phase extraction column is wide in linear range, low in detection limit and high in sensitivity, can be used for enriching and detecting the organophosphorus pesticide in vegetables, and not only has relatively strong matrix anti-interference capability, but also has good enriching and purifying performance and a wide application prospect.

The invention relates to a microfluidics preparation method of ZrO2/PS hybrid microspheres as well as a product and application of the of same and belongs to the technical field of hybrid microsphere preparation. According to the preparation method, a dichloromethane solution in which a silane coupling agent methacryloxypropyltrimethoxysilane (MPS) is dissolved and modified ZrO2 nanoparticles and polystyrene (PS) are used as a dispersion phase, a polyvinyl alcohol (PVA) aqueous solution is used as a continuous phase, and therefore, the ZrO2/PS hybrid microspheres are prepared through a focused microfluidic channel. The modified ZrO2 nanoparticles and a polymer matrix (PS) have good compatibility and can be uniformly distributed in the microspheres, so that the prepared ZrO2/PS microspheres have good optical transparency, and the refractive index of the hybrid microspheres is increased along with the increase of the content of the doped ZrO2 nanoparticles. The material has more excellent processability and controllable refractive index than single-component microspheres, and has a wider application prospect in the field of super-resolution imaging.

The present invention relates to a skin-friendly bra back button having a health care effect, the skin-friendly bra back button comprises a back button body, the back button body is prepared from polyester functional fiber, the polyester functional fiber is based on polyester and prepared from carbon nanotubes, ZrO2 nanoparticles, TiO2 nanoparticles, talc powder and a dispersing agent as packingsby melt spinning, and the dispersing agent is gold nano flower particles.

The invention provides a production technology of coating for reducing mechanical wearing. The production technology comprises the following steps: adding colloidal graphite into a container during processing, adding a structural adhesive into the colloidal graphite, performing high-speed mixing, adding a highly dispersed nano-material alumina and silicon carbide mixed material after the mixing isfinished, adding a solution with a three-axis fitness synthetic structure of inorganic silicon, fluorocarbon and organic silicon into the obtained mixture, mixing the mixture at a high speed, addingY2O3-ZrO2 nanoparticles after the mixing is finished, performing mixing through ultrasonic treatment, and filling the obtained product after the mixing is finished. The coating can reduce the wearingof a mechanical structure and improve the wear-resistant effect of a coating layer.