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Titanium dioxide nanotube photocatalytic material with hollow laminated structure and preparation method of titanium dioxide nanotube photocatalytic material

A photocatalytic material, titanium dioxide technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical recycling, etc., can solve the problems of low quantum yield, inability to achieve industrial application, industrial application limitations, etc. Achieve the effect of simple synthesis method, low cost and good photocatalytic performance

Inactive Publication Date: 2019-05-17
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although TiO 2 There are many advantages in photocatalytic performance, and it has developed rapidly in recent years, but so far due to some of its own bottlenecks, it has not yet reached the level of industrial application, and its industrial application has been limited. In the stage of theoretical research and experiment
The problem with titanium dioxide is mainly that the quantum yield is very low

Method used

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  • Titanium dioxide nanotube photocatalytic material with hollow laminated structure and preparation method of titanium dioxide nanotube photocatalytic material
  • Titanium dioxide nanotube photocatalytic material with hollow laminated structure and preparation method of titanium dioxide nanotube photocatalytic material
  • Titanium dioxide nanotube photocatalytic material with hollow laminated structure and preparation method of titanium dioxide nanotube photocatalytic material

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Experimental program
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Effect test

Embodiment 1

[0025] (1) Take 161.2g of ethanol, 119.73g of glycerol, and 66.7g of ether into a beaker. Stir at a constant speed for 30 minutes.

[0026] (2) Add 2.08 g of titanyl sulfate to the solution obtained in (1), and stir evenly for 3 hours.

[0027] (3) After the stirring is completed, the reaction liquid is transferred to the reaction kettle, the reaction temperature is 110° C., and the reaction is kept for 48 hours.

[0028] (4) Take out the reaction kettle from the blast drying oven, wash the product three times with absolute ethanol, and then dry it at 60° C. to be processed.

[0029] (5) The dried product was calcined in a muffle furnace at 600° C. for 2 hours to obtain the hollow sheet-like titanium dioxide nanotube photocatalytic material.

Embodiment 2

[0031] (1) Take 161.2g of ethanol, 119.73g of glycerol, and 66.7g of ether into a beaker. Stir at a constant speed for 30 minutes.

[0032] (2) After 30 minutes, add 2.08 g of titanyl sulfate to the solution obtained in (1), and stir evenly for 3 hours.

[0033] (3) After the stirring is completed, the reaction liquid is transferred to the reaction kettle, the reaction temperature is 110° C., and the reaction is kept for 48 hours.

[0034] (4) Take out the reaction kettle from the blast drying oven, wash the product three times with absolute ethanol, and then dry it at 60° C. to be processed.

[0035] (5) The dried product was calcined in a muffle furnace at 700° C. for 2 hours to obtain the hollow sheet-like titanium dioxide nanotube photocatalytic material.

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Abstract

The invention provides a titanium dioxide nanotube photocatalytic material with a hollow laminated structure and a preparation method of the titanium dioxide nanotube photocatalytic material. The diameter of a titanium dioxide nanotube is 2 to 3 [Mu]m; the titanium dioxide nanotube is formed by stacking nanosheets; the thickness of the nanosheets is 10 to 15 nm; the size of the nanosheets is 20 to30 nm; the nanosheets form a mesoporous structure. The method comprises the following steps: taking a mixed solution of ethanol, glycerol and diethyl ether as a solvent; taking titanyl sulfate as a titanium source; carrying out solvothermal reaction and sintering to form the titanium dioxide nanotube photocatalytic material with the hollow laminated structure. The preparation method disclosed bythe invention has the advantages of quickness, simplicity, easiness in large-scale production and high repeatability; in addition, the titanium dioxide nanotube prepared by the method is formed by stacking the nanosheets, and has a higher specific surface area and an abundant porous structure and excellent performance of producing hydrogen by water photolysis; the hydrogen producing rate of waterphotolysis is 2.35 times that of commercial P25; in addition, the catalyst can be recycled.

Description

technical field [0001] The invention belongs to the technical field of photocatalytic material synthesis, and in particular relates to a hollow sheet structure titanium dioxide nanotube photocatalytic material and a preparation method thereof. Background technique [0002] TiO 2 As the most widely used semiconductor photocatalytic material, it has great advantages in the photocatalytic degradation of organic and inorganic pollutants due to its stable physical and chemical properties, non-toxicity to organisms, abundant sources, and low cost. It is an environmental pollution control material with great potential and application prospects. Although TiO 2 There are many advantages in photocatalytic performance, and it has developed rapidly in recent years, but so far due to some of its own bottlenecks, it has not yet reached the level of industrial application, and its industrial application has been limited. It is in the stage of theoretical research and experiment. The pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/06C01B3/04
CPCY02P20/584Y02E60/36
Inventor 何莉田歌阳晓宇殷义霞胡洁卢毅李元洲曾猛
Owner WUHAN UNIV OF TECH
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