2940 results about "Titanium oxide" patented technology

The invention discloses a high-temperature-resistant, high-voltage-resistant and anti-breakdown capacitor base film and a preparation method thereof. The high-temperature-resistant, high-voltage-resistant and anti-breakdown capacitor base film is prepared from the following raw materials in parts by weight: 100 parts of polypropylene; 17 to 36 parts of polyvinylidene fluoride; 3-12 parts of enhanced and improved talcum powder; 1-6.5 parts of modified barium titanate; 1-6 parts of a cross-linking agent; 2-10 parts of a compatilizer; and 0.05-2 parts of an initiator. The capacitor base film is high in mechanical strength, and has excellent high temperature resistance, thermo-oxidative aging resistance, high voltage resistance and anti-breakdown performance; the enhanced and improved talcum powder is constructed by taking expanded layer modified talc as a carrier and titanium dioxide-carbon dot composite particles as a loading component and grafting and coating the organic matter, so that the defects of the talcum powder can be overcome, and the improvement effect of the talcum powder on heat resistance, high-voltage resistance and breakdown resistance can be fully exerted; meanwhile, the system can be endowed with excellent thermo-oxidative aging resistance.

The invention discloses a preparation process of an aluminum oxide ceramic material, which comprises the following steps: S1, pretreatment of aluminum oxide powder: taking alpha-Al2O3 powder as a raw material, adding a dispersion medium, carrying out ball milling, transferring into an ultrasonic dispersion machine, dispersing, and further carrying out vacuum drying to obtain pretreated aluminum oxide powder; s2, chemical activation treatment: weighing pretreated aluminum oxide, magnesium oxide, nano silicon dioxide, calcium oxide, zirconium dioxide, titanium dioxide and modified nano silicon carbide in parts by weight, mixing, sequentially adding a dispersing agent absolute ethyl alcohol and a KH550 silane coupling agent, stirring at a high speed, adding a polyvinyl alcohol binder, and continuously stirring to obtain ceramic slurry; s3, sieving the ceramic slurry, filling the ceramic slurry into a mold, and performing isostatic pressing to obtain a ceramic green body; and S4, putting the ceramic green body into a box-type sintering furnace, sintering step by step, and cooling to room temperature along with the furnace to obtain the aluminum oxide ceramic material. The prepared aluminum oxide ceramic material has high compactness, excellent dielectric strength and mechanical property, low energy consumption and great application potential.

The invention discloses a titanium dioxide super-lens large-view-field achromatic imaging method and device, and the method comprises the steps: building a simulation model through a time domain finite difference method, and obtaining the phase amplitude corresponding relation of TiO2 nano-column units under different sizes; and according to a first target function preset by single-wavelength super-diffraction focusing, reversely designing and iteratively optimizing the surface phase of the TiO2 super-lens by using a genetic algorithm to obtain the single-wavelength super-diffraction super-lens. And then, optimizing the genetic algorithm, and reversely designing and optimizing the phase of the single-wavelength super-diffraction super-lens again in combination with a Rayleigh-Sommerfeld diffraction formula and a second target function preset by broadband achromatism to obtain the broadband achromatism super-diffraction super-lens. And finally, point spread functions with different off-axis degrees are optimized by means of an exhaustion algorithm and an angular spectrum theory, and large-view-field achromatic super-diffraction imaging is realized. The invention effectively solves the problems of large aberration, obvious chromatic aberration, limited resolution, difficulty in parameter regulation and control and poor off-axis imaging performance of the traditional optical lens and the existing super lens in large-view-field imaging.

The invention relates to the field of building materials, and discloses a multifunctional foamed ceramic sound insulation and heat preservation material for buildings. Comprising the following raw materials in parts by weight: 42 to 48 parts of pottery clay tailings, 14 to 16 parts of fly ash, 10.5 to 12 parts of crushed stone materials, 2.8 to 3.2 parts of a silicon carbide foaming agent, 0.7 to 0.8 part of a borax fluxing agent, 7 to 8 parts of paraffin / silicon dioxide phase change microcapsules, 0.5 to 1.0 part of graphene, 2.0 to 2.5 parts of nano iron powder, 0.05 to 0.5 part of nano silver, 1.0 to 1.5 parts of photocatalytic titanium dioxide and 0.3 to 0.4 part of a fluorosilane coupling agent. A stable matrix structure is constructed through the argil tailings, the fly ash and the crushed stone materials, the silicon carbide foaming agent and the borax fluxing agent reduce the heat conductivity coefficient, the sound insulation performance is improved, the material is endowed with the antibacterial ability through nano-silver and photocatalytic titanium dioxide, indoor sanitation is guaranteed, and a super-hydrophobic layer is constructed through the fluorosilane coupling agent.

The invention provides a SiO2 / TiO2 / PMMA radiation refrigeration film and a preparation method thereof, and relates to the technical field of passive daytime radiation refrigeration films. The radiation refrigeration film is prepared from the following raw materials: N, N-dimethylformamide, polymethyl methacrylate, silicon dioxide and titanium dioxide. The invention relates to a preparation method of a SiO2 / TiO2 / PMMA radiation refrigeration film. The preparation method comprises the steps of preparing silicon dioxide, preparing titanium dioxide, synthesizing composite sol and preparing the SiO2 / TiO2 / PMMA radiation refrigeration film. The SiO2 / TiO2 / PMMA radiation refrigeration film prepared by the invention has high reflectivity in the ultraviolet-visible-near infrared band and high emissivity in the infrared band, can realize 8.4 DEG C sub-environment refrigeration, and is low in cost and simple in process flow.

The invention discloses a composite optical film with a polarization function, a preparation method and application thereof. The composite optical film comprises a transparent substrate layer, and a buffer layer, an oriented calcite crystal layer and an anti-reflection layer which are laminated on one side of the transparent substrate layer. Wherein the oriented calcite crystal layer is obtained by coating a superparamagnetic modified calcite crystal composite material suspension on the surface of the buffer layer, inducing optical axis oriented arrangement through a magnetic field and performing UV curing; the buffer layer is obtained by co-extruding a cycloolefin polymer and a polyurethane acrylate mixture, and a thermal expansion coefficient transition system is formed; the anti-reflection layer is composed of nano-porous titanium dioxide with the refractive index changing from 1.8 to 2.3 in a gradient mode, and a refractive index gradient structure is formed. According to the composite optical film, the polarization efficiency and the light transmittance of the composite optical film are improved and the industrial stability is improved through the design of the polarization functional layer in which the calcite nanocrystals are directionally arranged under the induction of a magnetic field and in combination with the gradient refractive index scattering layer.

The invention provides an electrochemical device and an electronic device, the electrochemical device comprises a positive pole piece, the positive pole piece comprises a positive current collector, a first coating and a positive material layer, the first coating is arranged on the surface of the positive current collector, and the positive material layer is arranged on the surface, away from the positive current collector, of the first coating; the first coating comprises inorganic particles, and the inorganic particles comprise at least one of nano boehmite, aluminum oxide, titanium dioxide, magnesium oxide, zirconium oxide or zinc oxide; the positive electrode material layer comprises a first conductive agent, and the first conductive agent comprises a first carbon nanotube; the length of the first carbon nanotube is 2-5 [mu] m, and the diameter of the first carbon nanotube is 2-100 nm; and the ion transference number of the positive electrode material layer is 0.4-0.47. The electrochemical device provided by the invention can consider the nail penetrating safety performance, the low-temperature cycle performance and the quick charging performance.

This case relates to a self-healing optical film and its preparation method. The optical film is made by adding a nanoparticle suspension to PET masterbatch as the main material during its melt extrusion process, resulting in a cast sheet. After biaxial stretching, a self-healing coating liquid is coated online, followed by shaping and cooling. The nanoparticle suspension includes nano-titanium oxide, MAH-PET polymer, ATO nanoparticles, and titanate coupling agent. The self-healing coating liquid is produced by core-shell emulsion polymerization, forming a nano-silica hard core and an acrylate functional monomer polymer soft shell. This invention adds the nanoparticle suspension by in-situ feeding in the middle of the extruder, reducing steps, improving dispersion uniformity, and making the film surface smoother. Then, the self-healing coating liquid is applied online after longitudinal stretching and before transverse stretching, forming a film on the film surface, improving the hardness and scratch resistance of the film material, enabling rapid self-healing at room temperature, strong stability, and avoiding the occurrence of rainbow patterns.

The invention provides base metal conductive paste for a photovoltaic cell and a preparation method, a use method and application thereof, and the conductive paste comprises the following components in percentage by mass: 5-60wt% of oxide coated base metal powder, 27-77wt% of silver powder, 2-5wt% of glass powder, 0.1-3wt% of an antioxidant aid and the balance of an organic carrier; wherein the base metal powder comprises one or more of copper, tungsten, tin, nickel, aluminum and alloy powder of the copper, the tungsten, the tin, the nickel, the aluminum and the alloy powder of the aluminum, and the oxide comprises one or more of silicon oxide, aluminum oxide, titanium oxide and boric oxide. The base metal powder coated with a specific type and a proper amount of oxide is selected and matched with the oxide and the glass powder which are good in compatibility, the manufacturing cost of the conductive paste and the battery can be effectively reduced, meanwhile, the conductive paste is applied to TOPCon and BC batteries, and the battery conversion efficiency can be kept equivalent to or even superior to that of traditional pure silver conductive paste.

The invention discloses a titanium-based lithium ion sieve and a preparation method thereof, the titanium-based lithium ion sieve comprises a lithium titanium oxide and a cerium-based solid solution, and the cerium-based solid solution comprises oxygen vacancies; in a Raman spectrum of the cerium-based solid solution, the peak intensity ratio I < 603 + / -0.2 > / I < 465 + / -0.2 > of spectrum peaks at the positions of 464.8 cm <-1 > to 465.2 cm <-1 > and the positions of 602.8 cm <-1 > to 603.2 cm <-1 > is equal to 0.05-0.3. When the titanium-based ion sieve provided by the embodiment of the invention is used for an adsorbent, the titanium-based ion sieve has the advantages of high adsorption efficiency, low solution loss rate, stable structure, good reusability and the like.

The invention relates to a titanium oxide nanowire supported iridium catalyst as well as a preparation method and application thereof. The catalyst comprises a titanium oxide nanowire carrier and elemental iridium supported on the titanium oxide nanowire carrier. According to the catalyst, the titanium oxide nanowire is used as a carrier, and the catalyst prepared by loading elemental iridium on the titanium oxide nanowire is used as an anode catalyst, so that higher mass specific activity and lower oxygen evolution overpotential can be obtained; the membrane electrode prepared by using the composite material has the characteristics of low noble metal catalyst loading capacity and low electrolytic water decomposition voltage.

The invention discloses a doped material based on a hexagonal boron nitride / titanium dioxide heterojunction and a preparation method thereof. According to the material, a heterojunction is formed by hexagonal boron nitride and titanium dioxide, and the light absorption performance, the carrier mobility and the photocatalytic efficiency are optimized by doping a nitrogen element, an iron element and a fluorine element; wherein the doped nitrogen element can reduce a band gap by introducing a defect energy level, and broaden a light absorption range to a visible light region and an infrared light region; the doped iron element can promote carrier separation by introducing an intermediate energy level; the doped fluorine element can inhibit carrier recombination by reducing surface defects. The light absorption efficiency of the material in the ultraviolet light range can be improved by constructing the layered # imgabs0 # heterojunction composite material, and the migration rate of electrons and holes can be improved by doping the N element, the Fe element and the F element in the # imgabs1 #, so that the oxidation-reduction reaction is promoted, and reference significance is provided for further improving the application effect of a photocatalyst in sewage treatment.

The invention discloses a composite modified material for a lithium niobate wafer, and relates to the technical field of nano materials. The material is composed of an anti-corrosion passivation matrix and a function enhancement component, wherein the anti-corrosion matrix adopts a silicon nitride / SiO2 multi-layer composite layer, atomic layer deposition titanium dioxide and magnetron sputtering aluminum oxide to form cascade protection; the functional layer comprises lead sulfide nanoparticles and nano silicon dioxide, and is directionally modified by a silane coupling agent and a perfluoropolyether surfactant. During preparation, PbS nano-particles are synthesized by combining a PECVD-ALD-magnetron sputtering stepped deposition process (200-150 DEG C) with a solvothermal method, and finally, the PbS nano-particles are formed through spin coating-annealing (300-400 DEG C). The optical loss of the material under the wavelength of 1550 nm is smaller than 0.2 dB / cm, the acid and alkali corrosion resistance is larger than 240 h, the lead dissolution rate is smaller than 0.1 ppm, the interface state density is reduced by 2 orders of magnitude, the contradiction between lithium niobate wafer surface degradation, photoelectric property degradation and lead-containing material environment risk is solved, and the material is suitable for 5G optical waveguide and quantum integrated device packaging.

The invention discloses a carbon-doped titanium dioxide nanotube-molybdenum disulfide energy-storage antibacterial material and a preparation method thereof. The preparation method comprises the following steps: carrying out primary anodic oxidation on a clean titanium foil in a mixed electrolyte of ethylene glycol, water and ammonium fluoride; after ultrasonic treatment is carried out in a hydrochloric acid solution for set time, secondary anodic oxidation is carried out, and the mixed electrolyte of the secondary anodic oxidation is the same as that of the primary anodic oxidation; annealing the titanium foil subjected to anodic oxidation twice in an argon atmosphere, putting an annealed sample into a mixed solution of sodium molybdate, a sulfur source and glucose, and carrying out hydrothermal treatment; and the titanium foil subjected to hydro-thermal treatment is cleaned and dried, and the carbon-doped titanium dioxide titanium foil with the surface covered with molybdenum disulfide is obtained. The MoS2-coated carbon-doped titanium dioxide nanotube (TNT-C-atMoS2) with high biocompatibility developed by the invention has a synergistic effect of charge antibiosis and chemical sterilization, so that the problem of intractable biological fouling of a titanium-based metal material in ocean engineering equipment is effectively solved.

The invention belongs to the technical field of glass, and particularly relates to high-light-transmittance glass and a preparation method of the high-light-transmittance glass. The raw materials comprise the following components in parts by weight: 20 to 30 parts of quartz sand, 15 to 18 parts of sodium carbonate, 8 to 10 parts of limestone, 5 to 7 parts of dolomite, 0.3 to 0.5 part of a clarifying agent, 0.2 to 0.3 part of a coloring inhibitor, 0.1 to 0.2 part of lithium carbonate, 0.05 to 0.1 part of titanium dioxide, 0.1 to 0.3 part of zirconium oxide, 2 to 4 parts of aluminum oxide, 1 to 3 parts of boron oxide, 0.3 to 0.5 part of nano silicon dioxide sol and 1 to 3 parts of a high-temperature-resistant agent; and 1-5 parts of a wear-resistant agent. The quartz sand, the sodium carbonate, the limestone, the dolomite, the clarifying agent, the coloring inhibitor, the lithium carbonate, the titanium dioxide, the zirconium oxide, the aluminum oxide, the boric oxide, the nano silicon dioxide sol, the high-temperature-resistant agent and the wear-resistant agent are used as raw materials, so that the prepared glass is high in light transmittance, and meanwhile, the performance requirements of high strength, low spontaneous explosion rate and the like are met.

The invention belongs to the field of functional textile materials, and provides a cool-feeling anti-ultraviolet nylon fabric and a preparation method thereof, and the cool-feeling anti-ultraviolet nylon fabric adopts a design scheme of combining a boron nitride / titanium dioxide composite filler with a beta-hydroxyl ether type ultraviolet absorption silane coupling agent surface modification technology. Uniform loading of hexagonal boron nitride on the surface of anatase type titanium dioxide is realized through an in-situ heat treatment process, a composite structure with heat conduction and ultraviolet shielding functions is constructed, and a complete process flow of master batch preparation, melt spinning, weaving, after-treatment and the like is matched; the ultraviolet protection coefficient UPF of the fabric is not lower than 40, the UPF retention rate after 20 times of household washing cycles is not lower than 80%, and the cool feeling qmax at the contact moment is not lower than 0.20 W / cm, the technical problem that an existing nylon fabric is insufficient in ultraviolet resistance and cool feeling function is solved, and the fabric has wide industrial application value.

The invention discloses a low-cost hydrogen embrittlement-resistant titanium bipolar plate for an electrolytic bath and a preparation method of the low-cost hydrogen embrittlement-resistant titanium bipolar plate. The low-cost hydrogen embrittlement-resistant titanium bipolar plate comprises a surface-modified titanium base material, an in-situ hydrogen-resistant layer formed on the surface of the titanium base material, and a noble metal conductive layer prepared on the surface of the in-situ hydrogen-resistant layer, the surface roughness Ra value of the titanium base material subjected to surface modification is 2-3.5 microns; the in-situ hydrogen-resistant layer is a titanium oxide layer or an oxygen inclusion layer which is generated on the surface of the titanium substrate in situ in an air atmosphere or an oxygen-enriched atmosphere, and the thickness of the in-situ hydrogen-resistant layer is 50-200nm; the precious metal conducting layer is made of at least one of platinum, gold, iridium and palladium, and the thickness of the precious metal conducting layer is 20-150 nm. Through simple surface modification and in-situ generation of the hydrogen-resistant layer, the method has the advantages of high process maturity, low process complexity, low material cost and great cost advantage.

The invention relates to the field of plastic bags, and discloses a biodegradable plastic bag and a preparation method thereof, the biodegradable plastic bag comprises polylactic acid, poly (butylene adipate-co-terephthalate), a functional additive, modified starch, a lubricant and an antioxidant; the functional additive is prepared by grafting hydroxylated modified castor oil and isocyanated montmorillonite loaded titanium dioxide; the hydroxylation modified castor oil is prepared by modifying castor oil with chloroethyl isocyanate, then reacting with N-allylimidazole, and then reacting with 6-mercaptohexyl-1-alcohol; the isocyanated montmorillonite loaded titanium dioxide is prepared by reacting montmorillonite loaded titanium dioxide obtained by a sol-gel method with isophorone diisocyanate; the modified starch is prepared by reacting octadecanoyl chloride and acryloyl chloride with starch, then carrying out graft copolymerization with ethyl acrylate and further introducing glycidyl methacrylate, so that the plastic bag is endowed with excellent mechanical properties, biodegradability and antibacterial property.

The invention provides a diaphragm and a preparation method thereof and a lithium ion battery, the diaphragm comprises a base membrane layer and a composite functional layer, the composite functional layer comprises hydrophobic SiO2 aerogel modified by a hydrophobic agent, a conductive ion polymer and a solid electrolyte, and the composite functional layer respectively accounts for 3-12wt%, 0.5-1.0 wt% and 0.5-1.5 wt% of the total mass of the diaphragm; the hydrophobic agent comprises trimethylchlorosilane, hexamethyldisilazane, perfluorooctyltriethoxysilane, polyvinylidene fluoride, polydimethylsiloxane and the like, the conductive ionic polymer comprises polyvinylpyrrolidone, lithium polymethacrylate, lithium polystyrene sulfonate, polyacrylamide and the like, and the solid electrolyte comprises lithium lanthanum titanium oxide, lithium lanthanum zirconium oxide, lithium lanthanum zirconium tantalum oxide and the like. The wettability is improved by the high porosity of the hydrophobic SiO2 aerogel, the stability and strong conductivity of a physical conductive network of the solid electrolyte and the ion affinity and amphoteric binding capacity of the conductive ion polymer are optimized, the electrochemical performance and thermal stability of the interface are optimized, and comprehensive optimization of the thermal-electric-interface performance of the diaphragm is realized through combination.

The invention discloses a lithium iron phosphate positive electrode material and a preparation method thereof, and belongs to the technical field of lithium battery materials. Mixing and stirring the chelating dispersant, titanium dioxide and part of water for 2-3 hours, then adding the phosphorus source, the lithium source, the coated carbon source and the residual water, and continuously stirring for 0.5-1 hour to obtain mixed slurry; grinding the mixed slurry at 20-50 DEG C, and performing spray drying after grinding to obtain a lithium iron phosphate precursor; and heating the lithium iron phosphate precursor to 650-750 DEG C in 4-6 hours under the protection of nitrogen, roasting for 8-12 hours in the temperature range, and cooling and crushing to obtain the lithium iron phosphate positive electrode material. The lithium iron phosphate positive electrode material is prepared by the method; according to the method, the doped titanium forms linear order through chelating of the long-chain polymer, the doped titanium can be exposed on the surface of an iron-lithium atomic layer in the preparation process, and the electron conductivity is improved; and the long-chain structure of the polymer can promote the ordered arrangement of the iron-lithium atomic layer, so that the cycling stability and rate capability of the positive electrode material are further improved.

The invention relates to the technical field of polyimide films, in particular to a PI film and a preparation method thereof. The PI film comprises the following raw materials in parts by mass: 100-150 parts of soluble polyimide resin, 5-15 parts of biphenyl epoxy resin, 5-10 parts of activated titanium dioxide, 1-5 parts of a curing agent and 1-3 parts of a curing accelerator, the soluble polyimide resin comprises the following raw materials in parts by mass: 5-10 parts of a first monomer, 25-30 parts of a second monomer, 50-60 parts of a third monomer, 20-30 parts of acetic anhydride and 5-15 parts of triethylamine. The size stability and heat resistance of the film can be remarkably improved, meanwhile, the outstanding transparency of the polyimide film can be guaranteed, and the application of the film in the field of flexible display is met.

The invention provides an inorganic mineral fiber based on water-quenched slag and a preparation method thereof, and belongs to the field of inorganic mineral fiber materials. Titanium oxide powder is synthesized through tetrabutyl titanate and compounded with lanthanum oxide, the high temperature resistance and corrosion resistance of the fiber are improved through the synergistic effect, and the thermal stability and structural integrity of the lanthanum oxide-titanium oxide composite powder are improved through calcination treatment. Meanwhile, the dispersity and the interface bonding force of the powder are optimized through plasma treatment and silane coupling agent modification, so that the mechanical property and the heat resistance of the fiber are enhanced. In addition, phosphate and zirconium oxide are introduced to coat zinc oxide, so that the zinc oxide shows better fluidity and dispersity in a high-temperature melting process; the fiber surface is treated through magnesium chloride and cerium chloride, so that the corrosion resistance and high-temperature stability are improved; the microwave heating technology improves the surface treatment efficiency, avoids the thermal degradation problem of a traditional method, and ensures the long-term stability and performance of the fiber in a severe environment.

The invention relates to the technical field of degradable PE (polyethylene) packaging materials, and discloses a PE film, a preparation process and application in tissue packaging, and the PE film is prepared by the following steps: by taking 7-(diethylamino) coumarin-3-carboxylic acid, 2-naphthyl methanol and epoxy chloropropane as raw materials, carrying out esterification reaction and quaternization reaction to prepare an epoxidized biodegradable organic photosensitizer; based on an epoxy-hydroxyl ring-opening reaction mechanism, hydroxylated titanium dioxide nanoparticles and polyvinyl alcohol resin are respectively modified by using an epoxidized biodegradable organic photosensitizer, and compounding is performed based on a pi-pi accumulation effect between aromatic rings to prepare the ultraviolet light dependent photo-biodegradable component. According to the present invention, the ultraviolet light dependent light-biological degradation component, the compatible component and the composite auxiliary agent are added to the polyethylene matrix, and blow molding is performed to obtain the PE film, and the film product shows excellent light-biological dual degradation performance, has actual use value, and can be used in the tissue packaging field.

The invention relates to the field of architectural ceramics, and discloses a sapphire effect dry particle, a ceramic tile with a sapphire imitation effect and a preparation method of the ceramic tile. The sapphire effect dry granules comprise blue dry granules and transparent dry granules, wherein the blue dry granules are prepared from the following raw materials: 1.5 to 3.5 parts of superfine tin dioxide, 15 to 19.5 parts of cobalt oxide, 4.5 to 7.5 parts of titanium oxide, 8 to 14 parts of zinc oxide, 32 to 43 parts of calcined aluminum oxide, 8 to 13 parts of quartz, 10 to 16 parts of potassium feldspar and 2.5 to 4.5 parts of boric acid; the transparent dry particles comprise the following raw materials in parts by weight: 8-15 parts of zinc oxide, 5-10 parts of aluminum oxide, 24-28 parts of quartz, 1-2.5 parts of nano silicon nitride and 7-11 parts of cryolite. By mixing the two dry granules, the frit dry granules which have a three-dimensional effect and an ice crack texture and imitate the texture of sapphire crystals can be prepared. The ceramic tile with the sapphire-like effect can be prepared by adopting the dry particles with the sapphire effect.

The invention relates to preparation of a titanium dioxide and bismuth vanadate composite photocatalytic material and application of the titanium dioxide and bismuth vanadate composite photocatalytic material in ibuprofen-containing sewage treatment, and belongs to the technical field of photocatalysis and water pollution treatment. The titanium dioxide (TiO2) and bismuth vanadate (BiVO4) photocatalytic material is prepared by adopting a water bath and calcination method. Under ultraviolet irradiation, the material can effectively degrade ibuprofen residual pollutants in a water body and convert the ibuprofen residual pollutants into harmless small molecules or mineralize the ibuprofen residual pollutants into carbon dioxide and water, the degradation rate reaches 99% or above, and excellent cycle stability is still kept in five stability tests. The photocatalyst is green and non-toxic in raw material, low in cost, simple in preparation process, capable of decontaminating ibuprofen in a water body, simple in process and high in decontaminating effect, an environment-friendly and efficient water treatment method is provided, ibuprofen residual pollutants in a water environment can be effectively removed, the influence on a water body ecological system is reduced, and the water body ecological system is protected. Wide application prospects are realized.

The invention belongs to the technical field of ceramics, and particularly relates to a three-dimensional effect glaze, a three-dimensional effect ceramic tile and a preparation method thereof. The three-dimensional effect glaze is composed of honeycomb ground glaze and honeycomb effect glaze; the honeycomb ground glaze comprises the following mineral components in percentage by mass: 20%-30% of quartz, 5%-10% of kaolin, 12%-18% of albite, 7%-15% of calcite, 2%-7% of wollastonite, 12%-17% of calcined talc, 15%-25% of calcined zinc oxide, 2%-6% of titanium dioxide, 2%-4% of glass powder, 1%-3% of strontium carbonate and 1%-5% of dolomite. The glaze with the honeycomb effect comprises the following mineral components in percentage by mass: 5%-15% of quartz, 5%-10% of kaolin, 40%-55% of albite, 2%-6% of barium ice feldspar, 2%-10% of calcite, 7%-15% of calcined talc, 1%-4% of calcined zinc oxide, 7%-15% of red mud and 3%-5% of coal gangue. The novel effect glaze is developed, the glaze surface is flat and smooth, meanwhile, the ground glaze is pushed to the surface through the gas phase disturbance effect, and the effect glaze sinks and wraps the ground glaze in a three-dimensional honeycomb shape.

The embodiment of the invention relates to the photovoltaic field, and provides a solar cell piece and a manufacturing method thereof, the solar cell piece comprises a substrate, the substrate comprises a front surface and a back surface which are opposite, the front surface is provided with a pyramid suede structure, the back surface is provided with a tower footing structure, and the specific surface area of the tower footing structure is smaller than that of the pyramid suede structure; dangling bonds exist in the substrate; the first tunneling layer at least covers part of the back surface, the first tunneling layer is made of a hollow titanium dioxide material, a plurality of transmission gaps exist in the hollow titanium dioxide material, the transmission gaps are used for transmitting carriers and doping ions, and the hollow titanium dioxide material is bonded with dangling bonds in the substrate; the second tunneling layer covers the surface of the first tunneling layer; the doped conductive layer covers the surface of the second tunneling layer; the passivation layer covers the surface of the doped conductive layer; the back electrode is electrically connected with the doped conductive layer. The photoelectric conversion efficiency of the solar cell can be improved.

The invention relates to the technical field of ceramic production, and discloses a high-temperature hard glaze formula for bone china and a bone china production process. 4%-6% of aluminum oxide; 2%-5% of boron oxide; 3%-7% of zinc oxide; 3%-10% of an alkaline earth metal oxide; 7%-13% of alkali metal oxide; 0.5%-2% of zirconium oxide; and 0.5%-1.5% of titanium dioxide. According to the high-temperature hard glaze formula for the bone china and the bone china production process, a proper amount of boric oxide, zinc oxide and lithium oxide are added into the glaze, so that the thermal expansion coefficient of the glaze is effectively reduced, and the thermal stability of the bone china is improved; by adding aluminum oxide, the breaking strength of the bone china can be greatly improved; by adopting a lead-free formula, lead pollution is avoided, and the environment-friendly requirement is met; through the optimized glaze formula and process, the bone china surface has good glossiness and smoothness.

The nano titanium oxide main body photocatalytic sterilization multi-element material provided by the invention comprises 85%-98% of a nano titanium oxide material, 2%-15% of a perovskite material and a modifier, the modifier comprises silver, silver oxide and graphene, and the modifier comprises a nano titanium oxide main body and a nano titanium oxide main body. The nano titanium oxide main body photocatalytic sterilization multi-element material can fully utilize the characteristics of a perovskite structure material, overcomes the defects of a nano titanium oxide material, improves the light utilization rate, inhibits carrier recombination, improves the antibacterial durability, can utilize ultraviolet light to carry out catalytic sterilization and can also utilize ions to carry out sterilization, and the antibacterial effect is good. Sterilization can be achieved through the photolysis reaction of visible light, the synergistic composite sterilization effect is achieved, harmful germs are rapidly and effectively killed, the environment is kept fresh and safe, and the comprehensive sterilization and deodorization effect can be achieved by adding the modifier; the preparation method of the nano titanium oxide main body photocatalytic sterilization multi-element material provided by the invention is simple in steps, convenient to operate and easy to implement.

The invention relates to composition and preparation of a thick-film copper conductor sintered at different temperatures and different atmospheres, and belongs to the field of chemical preparation. Comprising the following steps: mixing 65-85% of copper powder, 3.0%-15.0% of glass, 15.0%-35.0% of an organic adhesive and 0.1-1.5% of an additive which is one or more of titanium trioxide or stannous oxide, cuprous oxide and copper oxide, rolling into slurry, and sintering at 850-950 DEG C under the protection of nitrogen or ammonia gas to obtain a copper conductor. The medium-temperature copper paste is prepared by the following steps: mixing 60.0-85.0% of copper powder, 3.0-13.0% of glass, 8.0-25.0% of an organic adhesive and 0.2-1.6% of an additive which is one or more of titanium sesquioxide or stannous oxide, cuprous oxide and copper oxide, rolling into paste, and sintering at 450-650 DEG C under the protection of nitrogen or ammonia gas to obtain a copper conductor. The low-temperature copper paste is prepared by mixing 60.0-85.0% of copper powder, 3.0-13.0% of glass, 8.0-25.0% of an organic binder and 0.1-2.0% of an additive which can be one or more of elemental elements of magnesium, zinc, boron and phosphorus or one or more of nickel phosphide, nickel boride, copper phosphide and copper oxide, rolling the mixture into paste, and sintering the paste in air at 250-350 DEG C to obtain a copper conductor.