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Rutile TiO2 nanowire array synthesized by soft chemistry and hydrothermal technology and preparation method thereof

A nanowire array, rutile phase technology, applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problems of complex preparation process, and achieve the effect of high photocatalytic activity, good photocatalytic activity, and no need for high temperature heat treatment

Inactive Publication Date: 2010-10-20
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods require special equipment and instruments, and the preparation process is relatively complicated.

Method used

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  • Rutile TiO2 nanowire array synthesized by soft chemistry and hydrothermal technology and preparation method thereof
  • Rutile TiO2 nanowire array synthesized by soft chemistry and hydrothermal technology and preparation method thereof
  • Rutile TiO2 nanowire array synthesized by soft chemistry and hydrothermal technology and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Put the glass slide cleaned with ethanol solution into an ultrasonic cleaner for a few minutes, and then clean it with deionized water. It was placed in a sealed reaction vessel lined with Teflon for later use. Using toluene as a solvent, prepare a tetrabutyl titanate solution with a concentration of 1mol / L and a titanium tetrachloride solution with a concentration of 1mon / L, respectively. Drainage with a glass rod, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution into the reaction kettle, so that the volume ratio is 1:10:1:1. Then the reaction kettle was placed in an oven with a temperature of 180° C., and it was taken out after 22 hours. After it cools down, take out the slide at the bottom, and you will get TiO on the slide 2 nanowire array.

Embodiment 2

[0021] Put the glass slide cleaned with ethanol solution into an ultrasonic cleaner for a few minutes, and then clean it with deionized water. It was placed in a sealed reaction vessel lined with Teflon for later use. Using toluene as solvent, prepare a tetrabutyl titanate solution with a concentration of 1mon / L and a titanium tetrachloride solution with a concentration of 1mon / L, respectively. Drainage with a glass rod, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution into the reaction kettle, so that the volume ratio is 1:10:1:1. The reaction kettle was then placed in an oven at a temperature of 180° C., and it was taken out after 14 hours. After it cools down, take out the slide at the bottom, and you will get TiO on the slide 2 nanowire array.

Embodiment 3

[0023] Put the glass slide cleaned with ethanol solution into an ultrasonic cleaner for a few minutes, and then clean it with deionized water. It was placed in a sealed reaction vessel lined with Teflon for later use. Using toluene as solvent, prepare a tetrabutyl titanate solution with a concentration of 1mon / L and a titanium tetrachloride solution with a concentration of 1mon / L, respectively. Drainage with a glass rod, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution into the reaction kettle, so that the volume ratio is 1:10:1:1. The reaction kettle was then placed in an oven at a temperature of 180° C., and it was taken out after 6 hours. After it cools down, take out the slide at the bottom, and you will get TiO on the slide 2 nanowire array.

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Abstract

The invention discloses a method for synthesizing a rutile TiO2 nanowire array by soft chemistry and hydrothermal technology. The method has the characteristics of low preparation temperature, simple application technology, large specific surface area and high photo catalytic activity of the obtained photocatalyst, and the rutile serving as a main body. Hydrochloric acid, toluene, titanium tetrachloride, and tetrabutyl titanate are weighed according to a certain ratio, the toluene is used as a solvent, and solution of titanium tetrachloride and solution of tetrabutyl titanate are prepared respectively. The method for preparing the TiO2 nanowire array comprises the following steps of: (1) cleaning a glass slide which is cleaned by solution of ethanol into an ultrasonic cleaner for several minutes, and cleaning the glass slide by using deionized water; (2) weighing a certain amount of tetrabutyl titanate and titanium tetrachloride according to the stoichiometric ratio respectively, and dissolving the tetrabutyl titanate and titanium tetrachloride in a certain amount of solution of toluene respectively; (3) putting the cleaned glass slide into a sealed reaction kettle which is made of stainless steel and has a white polytetrafluoroethylene lining, and adding a certain amount of hydrochloric acid; (4) guiding the flow by using a glass rod, slowly adding a certain amount of solution of toluene, tetrabutyl titanate, and titanium tetrachloride; (5) putting the reaction kettle into a drying oven for heat treatment, wherein the reaction temperature is between 130 and 180 DEG C, and the reaction time is 6 to 22 hours; and (6) naturally cooling the reaction kettle at room temperature, and taking the glass slide out, and drying so as to obtain the TiO2 nanowire array.

Description

technical field [0001] The invention relates to a nanowire array photocatalyst and a preparation method thereof, more specifically to a method for synthesizing rutile phase TiO by soft chemistry-hydrothermal technology 2 The nanowire array photocatalyst method belongs to the scientific and technical field intersecting material science and catalysis science. Background technique [0002] The use of photocatalysts to decompose organic matter under light irradiation has become one of the major research topics in pollution control, and a series of progress has been made. But the most widely used photocatalyst TiO 2 Most of them exist in the form of powder or thin film, but it is difficult to separate and recover the powder catalyst, and the thin film TiO 2 The photocatalyst has a low specific surface area. Therefore, people hope to develop TiO with controllable structure, large specific surface area, easy separation and high efficiency. 2 catalyst of light. [0003] In rece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/053
Inventor 戈磊张宪华刘静
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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