Preparation method of rodlike rutile nano TiO2

A rutile-type, rod-shaped technology, applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., to achieve the effect of simple and easy process steps, simple post-processing process, and short process

Inactive Publication Date: 2013-03-27
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the rutile nano-TiO 2 Due to the problem that the preparation method needs relatively high temperature conditions, the present invention provides a rod-shaped rutile nano-TiO that is carried out under low temperature conditions and has simple process steps. 2 preparation method

Method used

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  • Preparation method of rodlike rutile nano TiO2
  • Preparation method of rodlike rutile nano TiO2
  • Preparation method of rodlike rutile nano TiO2

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In a 50ml small beaker, while stirring with a magnetic stirrer, add 10.00ml of deionized water, 3.00ml of ethylene glycol, and 6ml of 6mol / L HCl prepared with deionized water, and stir evenly. Then slowly add 10.00 ml of tetrabutyl titanate as a raw material, and stir for 12 minutes to form a light yellow transparent liquid reaction solution. The reaction solution was transferred to a 50ml autoclave and heated to 195oC; the product was taken out after 10 hours of constant temperature. The product was washed three times with absolute ethanol, then washed three times with deionized water, and then placed in a vacuum distillation device, and distilled under reduced pressure at 0.05MPa and 80°C for 20 minutes to obtain a white powdery solid, which is rod-shaped rutile Nano-TiO 2 .

[0035] Characterized by XRD and TEM, rod-shaped rutile nano-TiO 2 The diameter is about 20nm, the length is 50-250nm, and it is rutile phase. After UV-vis analysis, it can be seen that it has...

Embodiment 2

[0037] In a 50ml small beaker, while stirring with a magnetic stirrer, add 10.00ml of deionized water, 5.00ml of ethylene glycol, and 6ml of a 6mol / L sulfuric acid solution prepared with deionized water, and stir evenly. Then slowly add 5.00 ml of tetrabutyl titanate as a raw material, and stir for 8 minutes to form a light yellow transparent liquid reaction solution. The reaction solution was transferred to a 50ml autoclave and heated to 210oC; the product was taken out after 10 hours of constant temperature. The product was washed three times with absolute ethanol, then washed three times with deionized water, and then placed in a vacuum distillation device, and distilled under reduced pressure at 0.01MPa and 50°C for 25 minutes to obtain a white powdery solid, which is rod-shaped rutile Nano-TiO 2 .

[0038] Characterized by XRD and TEM, rod-shaped rutile nano-TiO 2 The diameter is about 20nm, the length is 50-250nm, and it is rutile phase. After UV-vis analysis, it can ...

Embodiment 3

[0040] In a 50ml small beaker, while stirring with a magnetic stirrer, add 10.00ml of deionized water, 1.00ml of ethylene glycol, 6ml of 6mol / L hydrochloric acid solution prepared with deionized water, and the raw material tetrabutyl titanate 8.00ml, stirred for 20min to form a pale yellow transparent liquid reaction solution. The reaction solution was transferred to a 50ml autoclave and heated to 230oC; the product was taken out after 12 hours of constant temperature. The product was washed twice with absolute ethanol, then washed twice with deionized water, and then placed in a vacuum distillation device, and distilled under reduced pressure at 0.02MPa and 60°C for 25 minutes to obtain a white powdery solid in the form of a stick Rutile nano-TiO 2 .

[0041] Characterized by XRD and TEM, rod-shaped rutile nano-TiO 2 The diameter is about 20nm, the length is 50-250nm, and it is rutile phase. After UV-vis analysis, it can be seen that it has no absorption in the visible lig...

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Abstract

The invention relates to a preparation method of rodlike rutile nano TiO2, belonging to the technical field of new material preparation. The preparation method comprises the following steps of: with tetrabutyl titanate as a raw material, deionized water as a solvent, ethylene glycol as a dispersing agent and hydrochloric acid as an acidity regulating agent, carrying out constant-temperature reaction at 190-230 DEG C, and preparing the rodlike rutile nano TiO2 by adopting a one-step charging and one-step reacting synthesis method. According to the preparation, the material mixing procedure is simplified, the reacting temperature is fixed, the reaction procedure is shortened, and the preparation cost is lowered. The rodlike rutile nano TiO2 prepared by adopting the preparation method has a diameter being about 20nm and length being 100-250nm.

Description

technical field [0001] The invention relates to a rod-shaped rutile nano-TiO 2 The preparation method belongs to the technical field of new material preparation. Background technique [0002] TiO 2 It is a white solid or powder amphoteric oxide, commonly known as titanium dioxide. Its characteristics are: stable chemical properties, can effectively absorb the ultraviolet radiation part of the solar spectrum, extremely strong redox, acid, alkali and photochemical corrosion resistance, cheap and non-toxic . There are three variants of titanium dioxide in nature: the rutile type is a tetragonal crystal; the anatase type is a tetragonal crystal; and the brookite type is an orthorhombic crystal. Nano-TiO 2 It has unique photocatalytic properties, excellent color effects, and UV shielding functions. It has important application prospects in energy, environmental protection, building materials, medical and health fields, and is an important functional material. With the develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/053
Inventor 于洁玫黄太仲刘宗明张以河翟利民何畏齐蕾
Owner UNIV OF JINAN
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