Method for preparing titanium dioxide nanowire

A titanium dioxide and nanowire technology, which is applied in the field of preparation of inorganic materials, can solve problems such as low yield, and achieve the effects of good crystallinity, large specific surface area and regular size arrangement

Inactive Publication Date: 2012-12-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses an alkaline process for producing TiO2 nanoparticles that have unique properties such as high aspect ratio (length/diameter) or narrow particle sizes distribution. These particles exhibit excellent optical performance due to their uniform structure and strong bond between them. They also provide improved stability during storage compared to other materials like silicon oxides.

Problems solved by technology

Technologies described involve synthesis of small particles called monooxygen trioxanes or tetra oxygen hexaferrite quantum dots, which exhibit excellent optical characteristics such as light absorbing efficiency, charge transferring capabilities, and biocompatibility. These techniques help create materials with improved functionality like those made up entirely of these tiny structures.

Method used

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  • Method for preparing titanium dioxide nanowire
  • Method for preparing titanium dioxide nanowire

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Embodiment 1

[0021] Add 60g NaOH and 6.5g NaCl to 500ml deionized water, stir until completely dissolved. Then the above solution was transferred to a polytetrafluoroethylene-lined hydrothermal kettle, added with a clean titanium foil, sealed, and hydrothermally reacted at 200°C for 48 hours. The hydrothermal reaction forms a layer of white sodium titanate on the surface of the titanium foil, and part of it is dispersed into the solution. The white matter of sodium titanate on the titanium foil was scraped off, filtered together with the sodium titanate in the solution, washed with deionized water, and dried at 110° C. to obtain sodium titanate nanowires. Immerse the titanate nanowires in 0.5M HCl solution for 10 hours, then filter, wash with deionized water, and dry at 105-130° C. to obtain the metatitanic acid nanowires. Calcining the metatitanic acid nanowires at 400° C. for 1 hour to obtain titanium dioxide nanowires. Electron microscope observation shows that its diameter is fine, w...

Embodiment 2

[0023] Add 120g NaOH and 3.0g NaCl to 1000ml deionized water, stir until completely dissolved. Then the above solution was transferred to a polytetrafluoroethylene-lined hydrothermal kettle, and a cleaned titanium foil was added, sealed, and hydrothermally reacted at 180° C. for 48 hours. The hydrothermal reaction forms a layer of white sodium titanate on the surface of the titanium foil, and part of it is dispersed into the solution. The white matter of sodium titanate on the titanium foil was scraped off, filtered together with the sodium titanate in the solution, washed with deionized water, and dried at 110° C. to obtain sodium titanate nanowires. Immerse the titanate nanowires in 0.5M HCl solution for 10 hours, then filter, wash with deionized water, and dry at 105-130° C. to obtain the metatitanic acid nanowires. Calcining the metatitanic acid nanowires at 400° C. for 1 hour to obtain titanium dioxide nanowires. Electron microscope observation shows that its diameter i...

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Abstract

The invention relates to a method for preparing titanium dioxide nanowire, which belongs to the technical field of production of inorganic materials. The method for preparing titanium dioxide comprises the following steps of: firstly putting titanium foils as the titanium source into a NaOH solution added with water soluble chlorate to carry out hydro-thermal reaction to produce sodium titanate nanometer, then carrying out acid replacement treatment to obtain meta-titanic acid nanowire, and finally calcining the meta-titanic acid nanowire to obtain titanium dioxide nanowire. The titanium dioxide nanowire obtained by using the method has the diameter of 3-15nm and the length of 1-15 nu m, is pure and regular in size arrangement, and has good crystallinity and large specific surface area; the diameter of the titanium dioxide nanowire can be adjusted through adjusting the concentration of water soluble chlorate; the titanium dioxide nanowire produced by using the method can be used in the aspects of solar batteries, photocatalysis, water splitting, sensors, nano-electronics, optoelectronic nano-devices and the like.

Description

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Claims

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Application Information

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Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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