Unlock instant, AI-driven research and patent intelligence for your innovation.

Production method of TiO2 nanotube and/or TiO2 nano-whisker

A manufacturing method and technology of nanotubes, applied in chemical instruments and methods, chemical/physical processes, titanium oxide/hydroxide, etc., can solve the problems of low mass production and achieve low raw material prices, low production costs, Uniform size effect

Inactive Publication Date: 2011-05-18
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to solve the defects of needing special equipment, special conditions and low degree of mass production in the existing method, and provides a TiO 2 Nanotubes and / or TiO 2 Novel Manufacturing Method of Nanowhiskers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Production method of TiO2 nanotube and/or TiO2 nano-whisker
  • Production method of TiO2 nanotube and/or TiO2 nano-whisker
  • Production method of TiO2 nanotube and/or TiO2 nano-whisker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 100mg TiO 2 The powder was added to the NaOH aqueous solution with PH of 12 and NaOH of 3000mg, mixed evenly and moved into the reaction vessel, after 200W, 50KH Z After 0.5 h of ultrasonic treatment, heat treatment in an oil bath at 120 °C for 4 h. After cooling, the precipitate obtained by filtering the solution was repeatedly subjected to 0.1 mol / L HNO 3 The solution and deionized water were filtered and washed until the filtrate was neutral. The final powder material was vacuum dried at 60°C to obtain 90 mg of TiO 2 Nanotubes in 90% yield.

Embodiment 2

[0034] 100mg TiO 2 The powder was added to the NaOH aqueous solution with PH of 13 and NaOH of 6000mg, mixed evenly and moved into the reaction vessel, after 300W, 40KH Z After 1 h of ultrasonic treatment, heat treatment in an oil bath at 120 °C for 2 h. After cooling, the precipitate obtained by filtering the solution was repeatedly subjected to 0.3 mol / L HNO 3 The solution and deionized water were filtered and washed until the filtrate was neutral. The final powder material was vacuum dried at 80 °C to obtain 92 mg of TiO 2 Nanotubes in 92% yield.

Embodiment 3

[0036] 100mg TiO 2 The powder was added to the NaOH aqueous solution with PH of 14 and NaOH of 10000mg, mixed evenly and moved into the reaction vessel, after 500W, 20KH Z After 100 min of ultrasonic treatment, heat treatment in an oil bath at 140 °C for 5 h. After cooling, the precipitate obtained by filtering the solution was repeatedly subjected to 0.2 mol / L HNO 3 The solution and deionized water were filtered and washed until the filtrate was neutral. The final powder material was vacuum dried at 60 °C to obtain 95 mg of TiO 2 Nanotubes in 95% yield.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for producing a TiO2 nano-tube and / or a TiO2 nano-whisker. The method comprises the following steps of: (1) dissolving TiO2 powder in NaOH solution or KOH solution with a pH value of between 12 and 14, with a proportion by weight of the TiO2 to the NaOH or the KOH being between 1 to 30 and 1 to 150; (2) performing ultrasound on the solution obtained in the step (1)by an ultrasonic processor with power between 200 and 600W and frequency between 20 and 50KHZ, for 30 to 100 minutes; (3) heating the solution obtained in the step (2) at a temperature of between 100and 140 DEG C for 2 to 5 hours; and (4) scrubbing and filtering the solution obtained in the step (3) until filtrate is in neutrality, and drying the filtrate to obtain the TiO2 nano-tube and / or the TiO2 nano-whisker. The producing method has the advantages of high yield, low raw material cost, easy controlled condition, low energy consumption of the synthesis process, simple equipment and so on.

Description

technical field [0001] The present invention relates to a kind of manufacture method of nanometer material, particularly a kind of TiO 2 Nanotubes and / or TiO 2 Method for making nanowhiskers. Background technique [0002] TiO 2 As a semiconductor material with good photocatalytic properties, it is widely used in catalysts and catalyst supports. In addition, TiO 2 It has a wide range of applications in sensors, new solar cells, electroplating and self-cleaning devices. At present, the structural form of catalytic materials is mainly nanoparticles, photogenerated electrons and holes are easy to recombine, and the photocatalytic efficiency is low; and the metal-organic compound raw materials required for the conventional sol-gel reaction are high in cost. TiO 2 Nanotubes have a hollow tubular structure with openings at both ends, and the tube wall is generally composed of 2 to 5 TiO 2 Molecular monolayer composition, the interlayer spacing is about 0.8nm; with TiO 2 Com...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/62C01G23/047B01J21/06
Inventor 陈韦王怀兵杨辉
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI