The invention provides a polyaniline-manganese dioxide-titanium nitride nanowire array composite material which comprises a carbon substrate (1), a titanium nitride nanowire array (2), a villiform manganese dioxide nano-film (3) and a coralliform polyaniline nanofiber (4). The titanium nitride nanowire array (2) is perpendicularly arranged on the surface of the carbon substrate (1) and connected with the carbon substrate (1) to form an integral structure, the manganese dioxide nano-film (3) coats the surface of the titanium nitride nanowire array (2), and the coralliform polyaniline nanofiber (4) is adhered on the surface of the manganese dioxide nano-film (3). The invention further provides a preparation method of the composite material and application of the composite material in a supercapacitor. The polyaniline-manganese dioxide-titanium nitride nanowire array composite material has features of an orderly-arranged porous structure, is regular and controllable in shape and appearance, can be directly applied to an electrode material of the supercapacitor and has wide actual application value and industrial production prospect.

Polyaniline-manganese dioxide-titanium nitride nanowire array composite material and preparation method and application thereof

The invention particularly relates to a porous titanium nitride nanotube array film and a preparation method thereof. The technical scheme of the method is that: first, a polished and buffed titaniferous metal sheet is used as an anode to be put into electrolyte for carrying out anodic oxidation, the voltage of anodic oxidation is 10-60 V, and the time of anodic oxidation is 0.5-5 hours; then the titaniferous metal sheet after anodic oxidation is washed and dried, and the dried titaniferous metal sheet is subjected to annealing treatment at the temperature of 300 to 600 DEG C in the air; finally the titaniferous metal sheet after the annealing treatment is subjected to annealing at the temperature of 300 to 600 DEG C in the atmosphere that the volume of a nitrogenous precursor is 10-100 percent at a speed of 1-20 DEG C/min, and is cooled along a furnace; and the titanium nitride nanotube array film is obtained on the surface of the titaniferous metal sheet. The preparation method disclosed by the invention is simple, and the process is reliable. The prepared porous titanium nitride nanotube array film is uniformly distributed with nanometer-size holes from a tube mouth to a tube bottom, and the size of the holes can be adjusted. The porous titanium nitride nanotube array film is suitable for the field of electrochemistry.

Porous titanium nitride nanotube array film and preparation method thereof

The invention discloses a method of preparing TiSrO3 coating on the surface of a titanium implant. The method comprises the following steps: after carrying out sand blasting and double acid treatment on a pure titanium implant, putting the titanium implant in a hydrothermal solution containing strontium ions for hydrothermal treatment and surface modification; and forming a nanoscale protruding structure with multiple holes on the surface of the implant, wherein the protruding layer on the surface is a strontium titanate crystal structure and an anatase crystal structure and has the effects of promoting osteoblast and osteogenic differentiation of stem cells. Meanwhile, the coating has good wettability and has a wide application value.

Method of preparing TiSrO3 coating on surface of titanium implant

The invention discloses a coloring method for a dental implant abutment. The coloring method comprises the following steps: (1) manufacturing the dental implant abutment; (2) removing oil; (3) polishing; (4) coloring; and (5) sealing a hole. According to the coloring method, the specific technology of surface treatment of the dental implant abutment is adjusted, the formulas of an oil removing agent, an acid pickling solution and an anodic oxidizing and coloring electrolyte are optimized, the electrolyte adopts oxalic acid and phosphoric acid with low acidity for replacing traditional strong acid for coloring, and therefore a compact titanium dioxide coloring layer can be formed on the dental implant abutment, other impurities are not introduced, and the formed coloring layer is high in color uniformity and uniform in thickness and has good adhesive force and mechanical property.

Coloring method for dental implant abutment

The invention provides a surface-strengthened Raman scattering substrate, and a production method and application thereof The substrate comprises a titanium sheet and a TiN nano porous array attached to the surface of the titanium sheet, wherein the TiN nano porous array comprises an outer layer and an inner layer; the mesh pore size of the outer layer is 130-150mm; and the pipeline diameter of the inner layer is 100-120nm The preparation method comprises the following steps: cleaning the titanium sheet, drying and polishing to obtain the polished titanium sheet; carrying out anode oxidation in an organic electrolyte many times by using the titanium sheet as an anode and a non-titanium metal as a cathode, thereby obtaining a titanium sheet to which surface the TiO2 nano porous array is attached; and carrying out in-situ nitrizing treatment on the titanium sheet in ammonia gas to obtain the surface-strengthened Raman scattering substrate The surface-strengthened Raman scattering substrate can implement physical strengthening on the premise of implementing chemical strengthening, thereby enhancing the detection sensitivity Besides, the surface-strengthened Raman scattering substrate is renewable, and can be reutilized

Surface-strengthened Raman scattering substrate, and production method and application thereof

The invention relates to medical titanium with a trace element slow-release function or a titanium alloy implant material as well as a preparation method and an application of the medical titanium. The invention adopts the technical scheme that the preparation method comprises the following steps: putting a polished titanium-containing metal sheet into an electrolyte as an anode for anodic oxidation; flushing and drying the titanium-containing metal sheet subjected to anodic oxidation, carrying out heat treatment for 1-3 hours at a temperature of 100-500 DEG C, naturally cooling and ultrasonically cleaning and drying; and putting the dried titanium-containing metal sheet into one of or mixed solution of more than any two strontium hydroxide, strontium acetate, zinc acetate or magnesium acetate, carrying out hydrothermal reaction for 0.5-12 hours in a closed container at a temperature of 100-300 DEG C, naturally cooling, taking out, cleaning and drying, and carrying out heat treatment for 1-3 hours at a temperature of 450-550 DEG C to obtain the medical titanium with the trace element slow-release function or the titanium alloy implant material. The medical titanium or the titanium alloy implant material as well as the preparation method and the application thereof have the beneficial effects that the preparation method is simple and reliable, the loading quantity and the release amount of trace elements of the medical titanium in a nano tube are controllable, the medical titanium and the biological activity on the alloy surface can be better promoted, and the application prospect is good in the medical implant material.

Medical titanium with a trace element slow-release function or titanium alloy implant material as well as preparation method and application of same

The invention relates to a titanium dioxide nanometer composite structure film and a preparation method thereof. The technical scheme of the preparation method comprises the following steps: using a polished titanium-containing metal plate as an anode to be placed in an electrolyte and perform anodic oxidation, wherein the voltage of anodic oxidation is 10-60V and the time of anodic oxidation is 0.5-5 hours; then cleaning the obtained titanium-containing metal plate after anodic oxidation, drying, then placing the dried titanium-containing metal plate in H2O or the mixed solution containing 5-95wt% H2O and 5-95wt% alcohol organic matter, performing a hydrothermal reaction in a sealed container at 80-300 DEG C for 0.5-24 hours, and naturally cooling to obtain the titanium dioxide nanometercomposite structure film on the surface of the titanium-containing metal plate. The preparation method is simple and reliable without adding a foreign material as a Ti source; and the load of TiO2 nanoparticles in nanotubes is controllable. In the prepared composite structure of TiO2 nanoparticles and nanotubes, TiO2 nanoparticles are distributed in the nanotubes evenly.

Titanium dioxide nanometer composite structure film and preparation method thereof

The invention provides a method of preparing nano silicon dioxide by using bamboo leaves as materials. The method comprises the following steps of cleaning and drying bamboo leaves fallen off the bamboos; weighing the cleaned and dried bamboo leaves, placing in hydrochloric acid liquor for boiling; cleaning and drying the bamboo leaves which are boiled in the hydrochloric acid; heating up to 200 DEG C-1000 DEG C at a heating rate of 0.5 DEG C/minute-30 DEG C/minute in an air atmosphere for annealing for 0.5 hour-10 hours; cooling with the furnace to obtain white nano silicon dioxide particle powder. According to the invention, the bamboo leaves are used as materials, and a large number of waste bamboo leaves are used, so that the usage amount of chemical materials is effectively reduced, and therefore, the method has the advantages of low in cost, simple process and the like, and is environment-friendly. The silicon dioxide prepared by the method disclosed by the invention has excellent comprehensive performances, purity of over 99%, a specific surface area of 150 m /g-250 m /g, uniform grain size of about 10 nm-30 nm, and therefore, the silicon dioxide prepared can be produced and applied in the industry on a large scale.

Huo Kaifu

Papers

Medical titanium with a trace element slow-release function or titanium alloy implant material as well as preparation method and application of same

Porous titanium nitride nanotube array film and preparation method thereof

Titanium dioxide nanometer composite structure film and preparation method thereof

Method for preparing nano silicon dioxide by using bamboo leaves as materials and nano silicon dioxide prepared by method