81 results about "Rutile" patented technology

The invention belongs to the technical field of architectural coating and particularly relates to an elastic thermal insulating coating. The elastic thermal insulating coating comprises the following components by weight percent: 40-50% of film forming agent, 10-20% of titanium dioxide, 4-10% of hollow glass bead, 5-7.5% of filler, 3-6% of dispersing agent, 1-3% of wetting agent, 1.6-4.0% of coalescing agent, 0.1-0.2% of cellulose, 0.1-0.5% of thickening agent, 0.2-0.5% of antifoaming agent and the balance of water. According to the technical scheme, all the materials are environment-friendly, and excellent thermal insulating effect and weather resistance are achieved due to the adoption of the hollow glass bead and rutile-type nanometer titanium dioxide. The hollow glass bead coating has a broad market space.

The invention belongs to the field of plastic product production, and particularly relates to a composite material for preparing a textile dyeing tube. The composite material mainly comprises the following components in parts by weight: 10 parts of PET resin, 10 parts of ASA resin, 1-6 parts of matt master batches, 1-3 parts of titanium dioxide, 1-2 parts of rosin, 0-1.5 parts of an antioxidant, 0-1 part of a fire retardant and 1-2 parts of a lubricating agent, wherein titanium dioxide is rutile titanium dioxide. Compared with the prior art, the components are good in compatibility; the molded product has excellent physical and mechanical properties, low glossiness, high strength (caused by titanium dioxide) and good tenacity, and is suitable for injection molding of plastic products; the metallic luster caused by titanium dioxide can be reduced; the noise can be reduced; titanium dioxide can be used for disinfecting under irradiation of an ultraviolet lamp; the composite material is very convenient; and the lubricating agent is added, so that the surface is relatively smooth.

The invention relates to the technical field of optical functional film manufacturing, in particular to a multi-layer structure of a high-light-transmittance composite brightness enhancement film and a processing method of the multi-layer structure, and the multi-layer structure sequentially comprises a surface hardening layer, a high-refractive-index composite layer, a light diffusion layer, a conductive functional layer, a microstructure layer and a bonding layer from a light incident side to a light emergent side; the surface hardening layer is composed of fluorine-containing modified polyethylene glycol terephthalate (PET), the high-refractive-index composite layer comprises a composite layer of rutile type nano titanium oxide particles and methyl phenyl silicone resin, and the light diffusion layer is a cross-linked layer formed by mixing bisphenol A type epoxy acrylate and trimethylolpropane triacrylate according to the mass ratio of 4.2: 1. The conductive functional layer is an indium tin oxide (ITO) thin film, the microstructure layer is a prism array layer formed by nickel template imprinting, the optical performance of the film is remarkably improved, and the light transmittance of the wavelength of 550 nm reaches 93.5%-93.8% through the optical matching design of the composite structure and is improved by 3-5% compared with similar products.

Titanium dioxide (TiO2) forms the basis of devices for applications including sensing devices, solar cells, photo-electrochromics, and photocatalysis. Such devices exploit different phases of TiO2 within such devices and accordingly it would be beneficial to have an amorphous TiO2 precursor which allows crystalline phase spatial patterning, for the crystallization of the amorphous TiO2 precursor to be triggered at low energies, and with the crystalline phase controllable at room-temperature without necessitating complex handling whilst providing TiO2 phases that are stable over a prolonged period of time. Accordingly, there are provided processes for providing a TiO2 precursor and controlling the conversion of the TiO2 precursor from amorphous-to-anatase, amorphous-to-rutile, amorphous-to-mixture of anatase / rutile or from amorphous-to-anatase-to-rutile in a simple and efficient manner.

The application discloses TiO2-Fe2O3 ordered hierarchical structure nanorod arrays, a preparation method and application thereof, and belongs to the field of materials and environmental protection technology. A rutile TiO2 film is mixed with a precursor I, a first-time hydrothermal growth reaction obtains TiO2 primary nanorod arrays, the TiO2 primary nanorod arrays are mixed with a precursor II, a second-time hydrothermal growth reaction is carried out, drying and annealing are carried out, and the TiO2-Fe2O3 ordered hierarchical structure nanorod arrays are obtained. The precursor I is a NaCl saturated aqueous solution of TiCl3. The precursor II is a NaNO3 saturated aqueous solution of FeCl3. The TiO2-Fe2O3 ordered hierarchical structure nanorod arrays have good research potential in the application promotion in the field of actual wastewater advanced treatment and practical application prospects under sunlight.

The invention discloses a full-spectrum response type aerogel photocatalyst as well as a preparation method and application thereof. The full-spectrum response type aerogel photocatalyst has a multi-heterostructure, and the multi-heterostructure comprises an in-plane heterostructure of amorphous carbon, graphite carbon and a BCN ring and a TiO2 mixed crystal phase structure of anatase type TiO2 and rutile type TiO2. The catalyst can be applied to preparation of methanol through photo-thermal catalytic reduction of CO2 in any single wave band range or combined wave band range in ultraviolet light, visible light and near-infrared light; the preparation method of the full-spectrum response type aerogel photocatalyst comprises the following steps: a) preparation of reduced TiO2 nanoparticles; b) preparation of aerogel; and c) high-temperature carbonization. The aerogel photocatalyst not only can realize full-spectrum response, but also can realize in-situ generation and regulation of oxygen vacancies in photo-thermal catalysis, so that the efficiency of reducing CO2 to prepare methanol is improved.

The application discloses a low-temperature curing white glaze for photovoltaic glass and a preparation method thereof. The white glaze is prepared from an acrylic emulsion and a curing agent. The acrylic emulsion is prepared from raw materials including rutile titanium dioxide and cationic acrylic resin emulsion, and the curing agent is prepared from raw materials including silicon dioxide and siloxane resin. The rutile titanium dioxide with high refractive index is used as the main body to improve the reflectivity of the glaze. The cationic acrylic resin emulsion with high hydroxyl value and modified silicon dioxide are used. The hydroxyl groups of the siloxane can react with the hydroxyl groups in the acrylic resin and the hydroxyl groups on the surface of the glass. Meanwhile, the excess hydroxyl groups in the siloxane can condense with each other and fill the gaps in the powder accumulation, so that the compactness of the glaze is improved. The adhesion between the glaze and the glass after curing reaches 0 level. The average reflectivity of the glaze is as high as 86.83% in the wavelength range of 380-1200 nm. Meanwhile, the glaze does not have the phenomena of performance attenuation such as aging and yellowing under the irradiation of sunlight.

The invention relates to a method for inducing optical anisotropy of a crystal material through heavy ion irradiation. According to the method, ion irradiation is carried out on an area, perpendicular to the in-plane crystal orientation, of a crystal material, so that defect aggregation and a lattice strain field are introduced into the area, and ion irradiation induces refractive index changes which are different in the in-plane direction and the out-of-plane direction in the area, so that an optical anisotropic structure is formed; ions adopted in the ion irradiation are Xe31 + ion beams. By controlling the ion dosage and utilizing the structural anisotropy of the rutile crystal, differentiated refractive index changes are successfully induced in the in-plane direction and the out-of-plane direction, strong and directional optical anisotropy is achieved, and a foundation is laid for manufacturing polarization-sensitive photonic devices.

The present invention discloses a preparation method of a spherical TiO2-coated inorganic particle composite material and a light-reflective coating thereof, belonging to the technical field of composite coatings. A preparation method of a spherical TiO2-coated inorganic particle composite material comprises the following steps: preparing rutile TiO2 balls; opening a feed valve of a fluidized bed, passing an inorganic particle core material into a silo of the fluidized bed; closing the feed valve, adjusting the height of the fluidized bed, starting a bottom gas pump, adjusting the air flow velocity to a set value, so that the bed particles enter a fluidized state; adding ethanol to the spherical TiO2 to obtain a TiO2 ethanol solution, regulating the viscosity and passing it into a liquid flow bin, setting the spray pressure and spraying rate, spraying the TiO2 ethanol solution onto the surface of the inorganic particle core material, maintaining a suitable inlet and outlet temperature, stopping spraying the TiO2 ethanol solution after reaching a predetermined thickness, continuing to maintain the air flow, and completely drying the particles to obtain a spherical TiO2-coated inorganic particle composite material. The present invention is used to improve the light reflectivity of the composite material in the 400-2500nm band.

This invention discloses a color-difference-free, uniformly luminescent concrete and its preparation method. Addressing the problems of easy hydrolysis and sedimentation of luminescent powder in alkaline cement, and the significant reduction in luminescence efficiency due to physical coating, the invention uses white silicate cement, refined quartz sand, uncoated rare-earth-doped strontium aluminate luminescent powder, and rutile titanium dioxide as the base mixed raw materials. During preparation, a multi-component liquid phase containing sodium polyacrylate, sodium gluconate, sodium aluminate, strontium nitrate, polyvinyl alcohol, and sodium tetraborate is added to the slurry in a stepwise manner and stirred. This invention utilizes the interfacial adsorption and local common ion effect of sodium polyacrylate to construct a thermodynamically balanced microenvironment around the luminescent powder, preventing hydrolysis. Simultaneously, the cross-linking of polyvinyl alcohol and sodium tetraborate forms an in-situ transient rheological network to prevent luminescent powder sedimentation. As cement hydration proceeds, the gel automatically disintegrates, and titanium dioxide approaches the luminescent interface, generating light scattering to eliminate color difference. High-brightness, uniform luminescence in concrete can be achieved without physical coating.

The invention discloses a TiO2 / UIO-66 composite material catalyst for photocatalytic CO2 reduction reaction and a preparation method thereof, and relates to the technical field of photocatalysis. According to the invention, TiO2 and UIO-66 are organically fused, a TiO2 nanoparticle material with a shell-core structure is firstly prepared, and the calcining time is changed, so that crystal transformation occurs on the surfaces of anatase type TiO2 nanoparticles, thereby forming the core-shell structure TiO2 with anatase type TiO2 as a core and rutile type TiO2 as a shell. Then TiO2 and UIO-66 are compounded through an amido bond, the utilization rate of photon-generated carriers is effectively increased through a heterojunction formed between TiO2 and UIO-66, efficient separation of electron-hole pairs is achieved, and the problems that a single photocatalyst is high in photon-generated carrier recombination rate, narrow in light response range and the like are solved.

The invention relates to a method for preparing magnetic artificial rutile from acid-soluble titanium slag, which comprises the following steps: heating and converting the acid-soluble titanium slag, hematite, a reducing agent and B2O3 into liquid molten slag, blowing air into the molten slag at a heat preservation temperature after heat preservation is finished for oxidation, cooling after oxidation, embedding fine ilmenite crystal grains into rutile crystals in the cooling process, and forming the magnetic artificial rutile by using the ilmenite crystal grains. The rutile indirectly has magnetism, and finally the modified slag containing the magnetic artificial rutile is obtained; performing magnetic separation to obtain artificial rutile concentrate and tailings; and pickling to obtain the high-grade artificial rutile. The modified slag containing the magnetic artificial rutile is prepared through additive adding and high-temperature oxidation, then the magnetic artificial rutile is separated from gangue by means of magnetic separation, the artificial rutile concentrate is obtained, the process is economical and environmentally friendly, the hydrochloric acid consumption and the waste liquid output in the follow-up pickling process are remarkably reduced, and the production cost is reduced. And the TiO2 content of the product artificial rutile is greatly improved, and high value-added utilization of the acid-soluble titanium slag is realized.

The present invention relates to a thick-film resistor comprising ruthenium oxide and glass, the ruthenium oxide having a rutile-type crystal structure, and having Lc / La of 0.6885 or more and a crystallite diameter of 10 nm to 80 nm (inclusive) when the lattice constant of the a-axis as measured by X-ray diffraction is La and the lattice constant of the c-axis as measured by X-ray diffraction is Lc.

The invention relates to the technical field of mineral processing, in particular to a method for preparing artificial rutile from ilmenite. According to the method, Ca / Mg is thoroughly stripped from'wrapping phase-lattice phase-interface phase 'through three-step cooperation of microwave fracturing physical breaking, lattice distortion chemical weakening and interface electrical directional shielding, and the total amount of CaO and MgO in ilmenite is reduced to 1t under the conditions of normal pressure, low acid (less than or equal to 3 mol L <-1 > HCl) and low temperature (less than or equal to 105 DEG C) for the first time; and the artificial rutile with TiO2 greater than or equal to 90% is directly produced, so that deep removal and titanium resource high-valued treatment are synchronously completed.

This invention discloses a method for testing and calibrating rutile oxygen isotopes. The method includes: performing a stability test on a detection instrument using glass standard materials with known oxygen isotope values; after passing the stability test, the detection instrument performs multiple sets of measurements on the crystal planes of rutile standard material particles with known oxygen isotope values, with the number of measurements within each group and the total number of measurements being the same, obtaining the first standard deviation between groups for each rutile standard material particle with known oxygen isotope value; when the first standard deviation between groups meets a first preset threshold, the fractionation coefficient of the detection instrument is calculated; the detection instrument also measures the crystal planes of rutile samples with unknown oxygen isotope values, with the measurement depth consistent with the measurement depth of rutile standard material particles with known oxygen isotope values, obtaining a second average value between groups; combining the fractionation coefficient of the detection instrument and the second average value between groups, the oxygen isotope value of the rutile sample with unknown oxygen isotope value is obtained. This method is fast, efficient, and highly reliable.

The application provides a microcrystalline glass, wherein a crystal phase in the microcrystalline glass comprises a sodium-containing nepheline phase, a forsterite crystal phase and a TiO2 crystal phase, wherein the sodium-containing nepheline phase comprises one or more of sodium nepheline and a silica solid solution thereof, a sodium-potassium solid solution nepheline and a silica solid solution thereof; and the TiO2 crystal phase comprises at least one of an anatase phase and a rutile phase. The microcrystalline glass containing the above crystal phase has high light transmittance, can be efficiently ion exchanged to obtain a strengthened microcrystalline glass containing a hexagonal potassium nepheline crystal phase on the surface, and has high hardness and good drop resistance, and can meet the application requirements of large-size, ultrathin terminal glass cover plates and the like. The application also provides a strengthened microcrystalline glass obtained by strengthening the microcrystalline glass, and a terminal adopting the strengthened microcrystalline glass.

The present invention relates to a layered structure of a TiO2 thin film having a rutile crystal structure, a method for forming a TiO2 thin film having a rutile crystal structure, and a method for manufacturing a capacitor using the same, which are capable of achieving both deposition of rutile TiO2 at a temperature of 400° C. or less and miniaturization of a device by depositing rutile TiO2 using a material having structural consistency with rutile TiO2, while preventing a material having structural consistency with rutile TiO2 from remaining between a substrate and rutile TiO2.

The application discloses a kind of radiation refrigeration heat insulation coatings, including primer and finish, primer includes deionized water, PH regulator, defoaming agent, hydroxypropyl methyl cellulose, wetting agent, dispersant, water-based polyurethane emulsion, aerogel, hollow glass microsphere, sepiolite, film forming aid;Finish includes deionized water, PH regulator, defoaming agent, hydroxypropyl methyl cellulose, dispersant, silicon oxide, zirconium oxide, rutile titanium dioxide, infrared reflective filler, film forming aid, defoaming agent, far infrared ceramic powder, potassium silicate, silica sol, titanium sol, silane modified acrylic emulsion, conductive mica powder.The coating has excellent solar reflectance and infrared emissivity, low thermal conductivity, and the coating has excellent high-temperature resistance, flame resistance and anti-staining effect.

The invention relates to a rutile-based porphyry type copper ore hydrothermal evolution and mineralization prediction method. The method comprises the following steps: marking the position of rutile in a rock mass sample; dividing the rock mass sample at the same position into two parts, preparing one part of the rock mass sample into a probe piece, delineating the position of rutile in the probe piece, and determining the enrichment degree, occurrence state, color and particle size of the rutile in different alteration zones according to the crystal form and internal structure characteristics of the rutile; performing rutile backscatter photography and energy spectrum analysis to obtain the variation trend of the inclusion mineral content of the rutile in different alteration zones; performing in-situ micro-area element analysis on the other part of rutile to obtain content data of main trace elements in the rutile; and based on the position of the rutile alteration zone, the hydrothermal center is determined, and then the mineralization potential is determined. According to the method, the efficiency and accuracy of prospecting from the porphyry type copper ore bed are improved, and the problems that prospecting of the deep edge of the ore bed is large in difficulty, long in period and low in efficiency are solved.

The invention discloses a high-shading PETG shrink film and a preparation system thereof, and relates to the technical field of plastic film production, the high-shading PETG shrink film comprises a material conveying barrel, a first conveying screw rod rotationally mounted in the material conveying barrel, a driving part mounted at one end of the material conveying barrel and connected with the first conveying screw rod, an extrusion die head mounted at the other end of the material conveying barrel, and a second conveying screw rod mounted at the other end of the material conveying barrel and connected with the second conveying screw rod; the first conveying screw rod and the second conveying screw rod are installed in the material conveying barrel, a supporting and mixing mechanism is installed between the first conveying screw rod and the second conveying screw rod, the supporting and mixing mechanism is in transmission connection with the inner wall of the material conveying barrel, and the reciprocating filtering assembly is movably installed between the supporting and mixing mechanism and the second conveying screw rod. The light-screening agent is limited to be rutile type titanium dioxide in a specific particle size range and the adding proportion of the rutile type titanium dioxide, the shrinkage performance of the thin film is considered while high light-screening performance is guaranteed, and the preparation system is provided with the supporting and mixing mechanism driven by the first conveying screw rod, so that materials are forcibly mixed and stirred in the conveying process.

In producing titanium oxide containing rutile-type crystals by adding hydrochloric acid to an aqueous dispersion of an alkali metal titanate, sulfurous acid, disulfurous acid, sulfuric acid or a salt thereof is added. Thus, there is provided a titanium oxide powder which is doped with bivalent sulfur atoms (S2−) and in which a ratio (IA / IR) of a peak intensity (IA) of anatase-type crystals to a peak intensity (IR) of rutile-type crystals as measured by X-ray diffractometry is 0.1 or less. Moreover, a cosmetic is provided by dispersing the titanium oxide powder in a dispersion medium. Thus, bluish color derived from Rayleigh scattering is negated, providing a dispersion, particularly a cosmetic, with excellent transparency and color tone.

The application discloses a high-shading PETG shrink film and a preparation system thereof, and relates to the technical field of plastic film production. The preparation system comprises a feeding cylinder, a first conveying screw rod rotatably installed in the feeding cylinder, a driving element connected with the first conveying screw rod and installed at one end of the feeding cylinder, an extrusion die head installed at the other end of the feeding cylinder, a second conveying screw rod installed in the feeding cylinder, a supporting and mixing mechanism installed between the first conveying screw rod and the second conveying screw rod, and a reciprocating filtering assembly movably installed between the supporting and mixing mechanism and the second conveying screw rod. The application limits the shading agent to be rutile titanium dioxide with a specific particle size range and the adding proportion, so that the shrinkage performance of the film is considered while the high-shading property is ensured. The supporting and mixing mechanism driven by the first conveying screw rod is arranged in the preparation system, so that the forced mixing and stirring of the material are realized in the conveying process.

The invention relates to occult blood detection cat litter particles and a preparation method thereof, and effectively solves the problems of bottom color interference and poor stability of traditional cat litter by constructing a four-layer composite structure with a moisture absorption inner core, white ground enhancement, functional color development and protective and controlled release. Wherein the white ground enhancement layer shields the color of an inner core by utilizing the characteristic of high refractive index of rutile type titanium dioxide, so that the color rendering contrast is effectively improved; the two-channel color development system is combined with TMB / ABTS gradient discoloration and a fluorescent response agent, and is matched with the catalytic electron transfer effect of the nano metal oxide, so that high-sensitivity capture and dual signal reading of 0.01 mg / dL low-concentration occult blood are realized; in addition, due to the synergistic effect of the microencapsulated peroxide donor and the water-soluble protective layer, environmental moisture and oxygen are blocked, and the shelf life stability of the product is effectively prolonged.

The application discloses a photoanode with urea oxidation activity and a preparation method thereof. x Ti 100‑x The alloy sheet is polished and ground to remove a surface oxide layer and is single-side insulated and packaged to serve as a conductive base; then, the alloy sheet is anodized to generate amorphous TiO2 nanotubes decorated with NiO, and heat treatment is performed to make the amorphous TiO2 phase change into a rutile crystal phase; then, surface states are generated by electrochemical protonation under a negative voltage to serve as a photo-generated electron transmission path; finally, NiO is activated into Ni(OH)2 by electrochemical cyclic scanning in an alkaline electrolyte, and the photoanode with urea oxidation activity is obtained. The photoanode obtained by the application has high charge separation efficiency and urea oxidation selectivity, and the preparation process is easy to be industrialized, and has great application potential in the fields of energy and environment.

The invention belongs to the field of water electrolysis, and particularly relates to an amorphous / crystal RuO2 / WOx-SO4 < 2-> composite material, a PEM water electrolysis device, preparation of the PEM water electrolysis device and application of the PEM water electrolysis device in water electrolysis hydrogen production, and the amorphous / crystal RuO2 / WOx-SO4 < 2-> composite material comprises multivalent WOx and amorphous / crystal RuO2; and modifying SO4 < 2-> anchored on the amorphous / crystal RuO2; the multivalent WOx is an oxide of positive tetravalent tungsten, positive pentavalent tungsten and positive hexavalent tungsten; the amorphous / crystal RuO2 comprises a rutile-phase RuO2 core and amorphous RuO2 coated on the surface of the RuO2 core. The invention innovatively provides a material with a special physicochemical structure, and the material can accidentally adapt to the acidic OER catalysis requirement based on the combined control of components and the physicochemical structure, can obtain excellent catalytic activity and stability, and optimizes the utilization rate of noble metal Ru.

This invention discloses a high-refractive-index contrast radiation-cooling coating, belonging to the technical field of radiation-cooling coatings. The raw materials of this invention's high-refractive-index contrast radiation-cooling coating include hollow microspheres, high-refractive-index pigments, film-forming substances, solvents, and additives. The coating process of this invention's radiation-cooling coating is a two-coat process. First, an inner coating is applied to the substrate surface using the radiation-cooling coating with rutile titanium dioxide as the high-refractive-index pigment. Then, an outer coating is applied to the surface of the inner coating using the radiation-cooling coating with zirconium dioxide and / or zirconium silicate as the high-refractive-index pigments. This invention introduces a closed, independent bubble structure into the coating using hollow microspheres, combined with a preferred high-refractive-index pigment, to increase the refractive index difference between adjacent components in the coating, significantly enhancing its solar reflectance, thereby achieving excellent radiation-cooling performance under strong sunlight.

The application discloses a preparation method and application of a TiO2 heterojunction composite photocatalytic material based on graphite phase carbon nitride in-situ growth, and belongs to the technical field of functional nanometer material preparation, solar energy utilization and environmental protection. The method directly prepares graphite phase carbon nitride material by using nitrogen-rich precursor as raw material and heat polymerization; then, rutile TiO2 is used as a titanium source, and a g-C3N4 / TiO2 ternary composite material with heterojunction and heterojunction is prepared on the g-C3N4 by using a molten salt method. The rutile / anatase TiO2 heterojunction is grown on the g-C3N4, the carrier separation between the TiO2 heterojunction and the TiO2 and g-C3N4 heterojunction interface is realized, so that the light-generated carrier separation efficiency of the composite material is significantly improved. The method is simple and feasible, the prepared material can be directly applied to photocatalytic purification of pollutants in water under sunlight, and has important application prospect.

Disclosed herein are embodiments of high Q, temperature stable materials with low dielectric constants. In particular, a two-phase material can form based on the rutile phase of titanium oxide along with a spinel structure of ZnAl2O4. This material can have a dielectric constant below 15 which is simultaneously temperature stable.

The invention relates to preparation and application of a biomass-based CQDs sensitized TiO2 homojunction photoelectrode, and the preparation method comprises the following steps: dispersing a carbon source and a nitrogen source in deionized water, and carrying out hydrothermal treatment, centrifugation, filtration, dialysis and freeze drying to obtain biomass-based CQDs powder; the preparation method comprises the following steps: immersing a cobalt-doped rutile phase TiO2 nanorod into an ethanol solution of hydrochloric acid and tetrabutyl titanate, carrying out hydrothermal treatment, washing and roasting, and loading an anatase phase TiO2 shell layer on the surface to form a TiO2 homojunction; and carrying out surface silanization treatment on the TiO2 homojunction, then immersing the TiO2 homojunction in a mixed solution of EDC, NHS and biomass-based CQDs, and carrying out hydrothermal treatment, washing and drying to obtain the biomass-based CQDs sensitized TiO2 homojunction photoelectrode. The TiO2 composite photoelectrode with high photocurrent density and hydrogen yield is prepared, and a scheme is provided for improving the visible light absorption capacity and the carrier separation capacity of the TiO2 photoelectrode.

The application relates to a high-distortion-state surface nanocrystallization TiOx modification layer and a preparation method thereof, and belongs to the field of material engineering. The outermost layer of the high-distortion-state surface nanocrystallization TiOx modification layer is high-distortion-state amorphous; the middle layer is a rutile TiO2 layer; and the innermost layer is a self-nanocrystallization titanium alloy. The preparation method comprises the following steps: forming a nanocrystalline layer on the surface of a substrate through ball milling, taking the substrate with the nanocrystalline layer as an anode plate, taking a stainless steel plate as a cathode plate, and performing electrochemical oxidation in an electrolyte to obtain a substrate with two modification layers; and performing chemical reduction on the substrate with the two modification layers to prepare the high-distortion-state surface nanocrystallization TiOx modification layer which is well combined with the substrate and has high visible light response. The high-distortion-state surface nanocrystallization TiOx modification layer has good degradation ability of organic dyes under visible light, and also has good sterilization effect in low-concentration biological wastewater.