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Preparation method of iron-doped TiO2 nanotube

A technology of nanotubes and iron yellow, which is applied in chemical instruments and methods, catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, etc., to achieve the effect of low equipment requirements, superior performance, and broad application prospects

Active Publication Date: 2013-06-19
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 500mL three-necked bottle in an ice water bath, and take distilled water (H 2 O) 200mL into a three-necked flask; install a condenser on the middle mouth of the three-necked flask and use tap water to condense; install a thermometer on one mouth of the three-necked flask to monitor and control the temperature of the reaction system; take TiCl 4 Put 100mL into a dry constant pressure separatory funnel, install the constant pressure separatory funnel on the other side of the three-necked flask; under the conditions of magnetic stirring and ice-water bath cooling, turn on the switch of the constant pressure separatory funnel, Titanium chloride was slowly dropped into distilled water, and the temperature of the entire dropping and mixing process was controlled at about 0℃ by controlling the dropping rate and the temperature of the ice water bath; with the addition of titanium tetrachloride, the color of the system gradually changed, from nothing The color transparent...

Embodiment 2

[0046] (1) Using the equipment described in step (1) in Example 1, take distilled water (H 2 O) 200mL into a three-necked bottle; take TiCl 4 100mL into a dry constant pressure separatory funnel; under the conditions of magnetic stirring and ice-water bath cooling, turn on the switch of the constant pressure separatory funnel, slowly drip the titanium tetrachloride solution into pure water, and control the dropping speed and The temperature of the ice-water bath makes the temperature of the entire dripping and mixing process controlled at about 0℃; after the titanium tetrachloride dripping 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 equipment described in step (2) of Example 1, place the titanium tetrachloride hydrosol at room temperature and 20°C for 6 hours to obtain an aged sol; take 60mL of the aged sol into a 500mL three-necked bottle Within; take H ...

Embodiment 3

[0051] (1) Using the equipment described in step (1) in Example 1, take distilled water (H 2 O) 200mL into a three-necked bottle; take TiCl 4 100mL into a dry constant pressure separatory funnel; under the conditions of magnetic stirring and ice-water bath cooling, turn on the switch of the constant pressure separatory funnel, slowly drip the titanium tetrachloride solution into pure water, and control the dropping speed and The temperature of the ice-water bath makes the temperature of the entire dripping and mixing process controlled at about 0℃; after the titanium tetrachloride dripping 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 equipment described in step (2) of Example 1, place the titanium tetrachloride hydrosol at room temperature and 20°C for 6 hours to obtain an aged sol; take 60mL of the aged sol into a 500mL three-necked bottle Within; take H ...

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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 ) Preparation method of nanotubes. (2) Background technology [0002] Nano TiO 2 Due to its non-toxicity, good photochemical stability, 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 many morphologies 2 Among the materials, TiO 2 The inner rice tube has a larger specific surface area, pore volume and higher surface energy than nano powders and nano films, and shows a significant size effect. At the same time, it also has a stronger adsorption capacity, so it shows a higher photocatalysis Performance and photoelectric conversion efficiency, and has shown great application prospects in the fields of actual photocatalysis, gas sensor, photolysis of water to produce hydrogen, solar electroturbidity, and biological m...

Claims

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Application Information

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