Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

preparation of double-walled na 2 (tio)sio 4 Nanotube approach

A nanotube and double-wall technology, applied in the field of Na2SiO4 nanotube preparation, achieves high tube forming rate, simple operation, and controllable tube length

Active Publication Date: 2017-05-24
HARBIN ENG UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

while preparing Na 2 (TiO)SiO 4 Nanotube structure materials have not been reported in the literature

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
  • preparation of double-walled na <sub>2</sub> (tio)sio <sub>4</sub> Nanotube approach
  • preparation of double-walled na <sub>2</sub> (tio)sio <sub>4</sub> Nanotube approach
  • preparation of double-walled na <sub>2</sub> (tio)sio <sub>4</sub> Nanotube approach

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: Si: Ti=1 composite powder is the double-walled Na that raw material prepares 2 (TiO)SiO 4 nanotube

[0039] Weigh 5 g of titanyl sulfate into a beaker, add 45 g of distilled water, and stir to form a solution.

[0040]Add 10 g of silica sol dropwise to the above solution, stir, and add ammonia water dropwise until the pH value is between 10 and 12.

[0041] The above mixture was allowed to stand at room temperature for 24 h, and then dried in an oven at 120° C. for 12 h.

[0042] The dried powder was calcined at 450°C for 4h. prepared SiO 2 -TiO 2 Composite powder.

[0043] Take 20mL of NaOH solution with a concentration of 10mol / L and add it to the lining of the polytetrafluoroethylene reactor.

[0044] Weigh 1 g of cetyltrimethylammonium bromide and 2 g of the above-prepared nanocomposite powder, add them to the sodium hydroxide solution, and ultrasonicate them to make them evenly mixed.

[0045] Put the stainless steel reaction kettle into an ov...

Embodiment 2

[0052] Embodiment 2: Si:Ti=2 composite powder is the double-walled Na that raw material prepares 2 (TiO)SiO 4 nanotube

[0053] Weigh 10 g of titanyl sulfate into a beaker, add 45 g of distilled water, and stir to form a solution.

[0054] Add 10 g of silica sol dropwise to the above solution, stir, and add ammonia water dropwise until the pH value is between 10 and 12.

[0055] The above mixture was allowed to stand at room temperature for 24 h, and then dried in an oven at 120° C. for 12 h.

[0056] The dried powder was calcined at 450°C for 4h. prepared SiO 2 -TiO 2 Composite powder.

[0057] Take 20mL of NaOH solution with a concentration of 10mol / L and add it to the lining of the polytetrafluoroethylene reactor.

[0058] Weigh 1 g of cetyltrimethylammonium bromide and 2 g of the above-prepared nanocomposite powder, add them to the sodium hydroxide solution, and ultrasonicate them to make them evenly mixed.

[0059] Put the stainless steel reaction kettle into an o...

Embodiment 3

[0066] Embodiment 3: Si:Ti=3 composite powder is the double-walled Na that raw material prepares 2 (TiO)SiO 4 nanotube

[0067] Weigh 15 g of titanyl sulfate into a beaker, add 45 g of distilled water, and stir to form a solution.

[0068] Add 10 g of silica sol dropwise to the above solution, stir, and add ammonia water dropwise until the pH value is between 10 and 12.

[0069] The above mixture was allowed to stand at room temperature for 24 h, and then dried in an oven at 120° C. for 12 h.

[0070] The dried powder was calcined at 450°C for 4h. prepared SiO 2 -TiO 2 Composite powder.

[0071] Take 20mL of NaOH solution with a concentration of 10mol / L and add it to the lining of the polytetrafluoroethylene reactor.

[0072] Weigh 1 g of cetyltrimethylammonium bromide and 2 g of the above-prepared nanocomposite powder, add them to the sodium hydroxide solution, and ultrasonicate them to make them evenly mixed.

[0073] Put the stainless steel reaction kettle into an o...

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

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention provides a method for preparation of a double-wall Na2(TiO)SiO4 nanotube. The method includes: adding titanium dioxide-silicon dioxide composite powder and hexadecyl trimethyl ammonium bromide cationic surfactant powder into a polytetrafluoroethylene hydrothermal reaction kettle loaded with a sodium hydroxide solution, mixing the materials evenly, carrying out hydrothermal reaction at 120-220DEG C for 20-35h, and then carrying out acid treatment, washing, drying and calcinations to obtain the double-wall Na2(TiO)SiO4 nanotube. According to the invention, the method employs the traditional hydrothermal method and adds the surfactant CTAB as the template agent to prepare the Na2(TiO)SiO4 nanotube, which has the characteristic of a double-tube wall structure, and also has the advantages of large specific surface area, controllable tube length, high tube forming rate and good tube form. And the preparation method is simple. The obtained Na2(TiO)SiO4 nanotube has a specific surface area up to 223m<2> / g, a tube length of about hundreds of nanometers, an outer diameter of about 8nm, an inner diameter of about 5nm, a double-tube wall, and two opening ends.

Description

technical field [0001] What the present invention relates to is a kind of Na 2 (TiO)SiO 4 The preparation method of nanotube, specifically a kind of preparation double-walled Na 2 (TiO)SiO 4 nanotube method. Background technique [0002] Since the discovery of carbon nanotubes in 1991, tubular nanomaterials have been widely used as catalysts or supports in the field of catalysis due to their unique physical and chemical properties, larger specific surface area and higher adsorption capacity. It also shows good application prospects in the fields of microelectronics and photoelectric conversion. [0003] Na 2 (TiO)SiO 4 It is widely used in catalysis, ion exchange and separation processes due to its microporous structure. It is also reported that Na 2 (TiO)SiO 4 The porosity can be used as a low-temperature hydrogen storage material (N.Ismail, I.Hamdy Abd El-Maksod, H.Ezzat.Synthesis and characterization of titanosilicates from white sandsilica and its hydrogen up ta...

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): C01B33/20B82Y40/00
Inventor 董国君常沙
Owner HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com