Preparation method of iron-doped TiO2 nanotube

A nanotube, iron yellow technology, applied in chemical instruments and methods, catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, etc., to achieve high yield, enhanced optical properties, and broad application prospects.

Active Publication Date: 2012-02-15
ZHONGRONG TECH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current template method uses iron yellow (α-FeOOH) as a self-sacrificing template to prepare iron-doped TiO 2 Nanotubes have not been reported in the literature

Method used

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  • Preparation method of iron-doped TiO2 nanotube
  • Preparation method of iron-doped TiO2 nanotube
  • Preparation method of iron-doped TiO2 nanotube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Fix a three-neck bottle with a capacity of 500mL in an ice-water bath, take distilled water (H 2 (2) 200mL is packed in the there-necked bottle; A condenser is installed on the middle port of the there-necked bottle, utilizes tap water to condense; A thermometer is installed on a mouth of the there-necked bottle, to monitor and control the temperature of the reaction system; Take TiCl 4 Put 100mL into a dry constant-pressure separating funnel, and install the constant-pressure separating funnel on the other side port of the three-necked flask; under the condition of magnetic stirring and ice-water bath cooling, turn on the switch of the constant-pressure separating funnel, Slowly drop titanium chloride into distilled water, and control the temperature of the entire dropping and mixing process at about 0°C by controlling the dropping speed and the temperature of the ice-water bath; with the addition of titanium tetrachloride, the color of the system changes gradually,...

Embodiment 2

[0046] (1) adopt the device and equipment described in step (1) in embodiment 1, get distilled water (H 2 (2) 200mL is packed into there-necked bottle; Get TiCl 4 Put 100mL into a dry constant-pressure separating funnel; under the conditions of magnetic stirring and ice-water bath cooling, turn on the switch of the constant-pressure separating funnel, slowly drop the titanium tetrachloride solution into pure water, and control the dropping speed and The temperature of the ice-water bath keeps the temperature of the entire dropping and mixing process at about 0°C; after the addition of titanium tetrachloride is completed, continue to stir for 2 hours. At this time, the mixed system is a light yellow-green sol. Cool it to room temperature and place it ;

[0047] (2) Using the device and equipment described in step (2) in Example 1, place the titanium tetrachloride hydrosol at room temperature 20°C for 6 hours to obtain the aged sol; take 60 mL of the aged sol and put it into a ...

Embodiment 3

[0051] (1) adopt the device and equipment described in step (1) in embodiment 1, get distilled water (H 2 (2) 200mL is packed into there-necked bottle; Get TiCl 4 Put 100mL into a dry constant-pressure separating funnel; under the conditions of magnetic stirring and ice-water bath cooling, turn on the switch of the constant-pressure separating funnel, slowly drop the titanium tetrachloride solution into pure water, and control the dropping speed and The temperature of the ice-water bath keeps the temperature of the entire dropping and mixing process at about 0°C; after the addition of titanium tetrachloride is completed, continue to stir for 2 hours. At this time, the mixed system is a light yellow-green sol. Cool it to room temperature and place it ;

[0052] (2) Using the device and equipment described in step (2) in Example 1, place the titanium tetrachloride hydrosol at room temperature 20°C for 6 hours to obtain the aged sol; take 60 mL of the aged sol and put it into a ...

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Abstract

The invention discloses a preparation method of an iron-doped TiO2 nanotube, comprising the following steps of: preparing titanium tetrachloride into hydrosol, staying until the hydrosol is aged, diluting by adding water so as to obtain a colorless transparent solution; adding ferrite yellow into the colorless transparent solution at room temperature, gradually heating the mixed liquor to the temperature of 80-100 DEG C, followed by constant temperature water bath, uniformly stirring for 1-3 hours to obtain a sediment, washing the sediment, drying and grinding to obtain the iron-doped TiO2 nanotube. The mass ratio of Fe in the added ferrite yellow to Ti in the added titanium tetrachloride is 0.5-1.5: 1. The method provided by the invention has advantages of high yield, low cost, easily controllable process and low requirement on equipment, and is suitable for industrial production; in addition, in comparison with the photocatalytic activity of regular nanometer titanium dioxide materials, the photocatalytic activity of the iron-doped titanium dioxide (TiO2) nanotube prepared in the invention is enhanced.

Description

(1) Technical field [0001] The invention relates to an iron-doped titanium dioxide (TiO 2 ) Nanotube preparation method. (2) Background technology [0002] Nano-TiO 2 Due to its non-toxicity, good stability of photochemical properties, high catalytic efficiency, strong oxidation ability, simple process flow, easy control of operating conditions, and no secondary pollution in practical applications, it has become an excellent photocatalytic material. Nano-TiO in various morphologies 2 Among materials, TiO 2 Compared with nanopowders and nanofilms, inner nanotubes have larger specific surface area, pore volume and higher surface energy, showing a significant size effect, and also have stronger adsorption capacity, so they show higher photocatalytic performance. Performance and photoelectric conversion efficiency, and has shown great application prospects in the fields of actual photocatalysis, gas sensors, photolysis of water to produce hydrogen, solar electroturbidity, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J37/03B01J35/10
Inventor 李国华胡素娟
Owner ZHONGRONG TECH CORP LTD
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