44 results about "Titanium disulfide" patented technology

The invention relates to a preparation method of a titanium disulfide nanosheet / quantum dot composite mercury ion fluorescent probe, which comprises the following steps: hydrothermal synthesis is carried out on a raw material titanium disulfide to prepare lamellar-structure TiS2 nanosheets, and an ultrasonic-assisted chemical process is carried out to prepare TiS2 fluorescent quantum dots; a terminal amino group of single-chain oligodeoxyribonudeotide is combined with a carboxy group on the TiS2QDs surface stabilizer molecules to form ODN-modified TiS2QDs, wherein the ODN can be attached to the TiS2 nanosheets under the action of intermolecular force, so that the TiS2QDs indirectly contact the nanosheets to generate fluorescent resonance energy transfer, thereby causing TiS2QDs fluorescent quenching; Hg<2+> can be specifically combined with thymine base on the single chain ODN to form a T-Hg<2+>-T structure, so that the ODN departs from the TiS2 nanosheet surface, and the TiS2QDs also depart, thereby causing fluorescent restoration; and the relationship between the fluorescence intensity and Hg<2+> concentration of the system is fitted to construct the Hg<2+> fluorescent probe based on the titanium disulfide nanosheet / quantum dot composite. The method implements composite construction of the ionic fluorescent probe from the titanium disulfide nanosheet / quantum dot composite and single-chain ODN.

The invention discloses a preparation method and an application of a tin oxide-based solar battery nanometer. The tin oxide-based solar battery nanometer comprises tin dioxide, tin disulfide and titanium disulfide at the molar ratio of SnO<2> to SnS<2> to TiS<2> of x to y to z, wherein x is greater than or equal to 1.5 and less than or equal to 2.5; y is greater than or equal to 0.2 and less thanor equal to 0.6; and z is greater than or equal to 0.1 and less than or equal to 0.25. The invention also provides the preparation method and the application of the tin oxide-based solar battery nanometer. According to the nanometer powder material in the invention, a color organic matter is degraded in a neutral environment, and can be recycled for five times or more, and the photocatalytic performance is not changed; however, in an acid environment, the photocatalytic performance stability is degraded; the nanometer powder material disclosed in the invention has relatively high photoelectricconversion, wide preparation raw material resource, low-cost and easily-available performance, simple preparation method and low cost; and the nanometer powder can be subjected to tabletting and forming easily, thereby satisfying the processing requirement of a solar energy window material.

The present invention relates to the field of solar cell technology and provides a titanium disulfide nano sheet / graphene composite material counter electrode preparation method. The method comprises the steps of (1) taking graphene oxide, titanium powder and sulfur powder as precursors to experience mechanical milling mixing, (2) allowing the mixture obtained in step (1) to experience high-temperature annealing under an inert atmosphere, and cooling the mixture to a room temperature to obtain a composite material whose sulfide nano sheet vertically grows on a graphene surface, (3) uniformly grinding the obtained composite material and a binder, and coating slurry to a conductive layer, and (4) allowing the conductive layer which is coated by the slurry obtained in step (3) to experience heating and annealing processing under the protection of the inert atmosphere, and cooling the conductive layer to the room temperature to obtain a target counter electrode. According to the method, the preparation process is simple, the cost of a raw material is low, the method is suitable for high-volume industrial preparation, compared with a traditional platinum counter electrode, the platinum counter electrode with high price, insufficient resource and poor stability can be substituted, and the method has an important meaning for the reduction of the cost of a dye-sensitized solar cell.

The invention discloses a doping type lithium battery anode material. The doping type lithium battery anode material contains the following components in percentage by weight: 92wt%-96wt% of a ternary material and 4wt%-8wt% of a doping material, wherein the doping material is a mixture of at least two of ferrous sulfide, manganese sulfide and titanium disulfide. The doping type lithium battery anode material is high in monomer energy density, the electrode polarization phenomenon after a lithium battery is repeatedly charged at a high temperature is relatively high, and the working time and service life of the lithium battery at high temperature can be effectively prolonged.

The invention provides a preparation method of an oxygen-deficient titanium disulfide@carbon nanodisk photocatalytic material. The organic titanium salt is added to oleylamine and stirred, an inert gas is introduced, and the solution is heated to be fully mixed; and mercaptan is injected into the above solution, Stir and heat, keep at this temperature for 20-30 min, and naturally cool to room temperature; drop the obtained solution into liquid alkane, and separate and dry the precipitate to obtain titanium disulfide@C nanodiscs; pure titanium disulfide@C nanodiscs The disks were placed in a hydrogen atmosphere and calcined to obtain oxygen-deficient titanium disulfide@C nanodisks. The invention provides a preparation method of an oxygen-deficient titanium disulfide@carbon nano-disk photocatalytic material. The titanium disulfide@carbon nano-disk photocatalytic material has a larger specific surface area, and the oxygen-deficient defect plays an important role in improving the photocatalytic performance of the material. plays a very important role. It is beneficial to improve the photocatalytic performance of the material. Under UV photocatalytic conditions, the degradation of tetracycline reached 99.8% after 60 min. The preparation process is relatively simple and easy to operate.