Preparation method of TiO2 nano tubes with controllable tube wall thickness

A nanotube and tube wall technology is applied in the field of preparation of TiO2 nanotubes with a controllable wall thickness, which can solve the problems of low utilization rate of solar energy and the like, and achieve the effects of simple method and low cost.

Inactive Publication Date: 2019-08-06
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

TiO 2 Photocatalytic oxidation technology has the advantages of strong oxidative degradation ability, stable performance, low treatment cost and no secondary pollution, but it has a wide band gap (3.2eV) and low utilization rate of solar energy.

Method used

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  • Preparation method of TiO2 nano tubes with controllable tube wall thickness
  • Preparation method of TiO2 nano tubes with controllable tube wall thickness
  • Preparation method of TiO2 nano tubes with controllable tube wall thickness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) Add acetylacetone and tetrabutyl titanate in sequence to absolute ethanol at a volume ratio of 1:1:3, and mix well to obtain solution A;

[0026] 2) Add polyvinylpyrrolidone with a mass ratio of 8% to solution A, and completely dissolve to obtain solution B;

[0027] 3) Add liquid paraffin with a volume ratio of 2.7% to solution B, and stir for 48 hours to obtain solution C;

[0028] 4) Put solution C into a 5mL syringe, install the syringe on an electrospinning device, conduct electrospinning at a voltage of 18KV, a solution supply rate of 5mL / h, and a receiving distance of 20cm, and collect the product with a stainless steel plate;

[0029] 5) After the spinning product is dried, it is calcined at 500°C in an air atmosphere to obtain TiO 2 nanotube;

Embodiment 2

[0031] 1) Add acetylacetone and tetrabutyl titanate in sequence to absolute ethanol in a volume ratio of 1:1:2, and mix well to obtain solution A;

[0032] 2) Add polyvinylpyrrolidone with a mass ratio of 10% to solution A, and completely dissolve to obtain solution B;

[0033] 3) Add liquid paraffin with a volume ratio of 7.3% to solution B, and stir for 48 hours to obtain solution C;

[0034] 4) Put solution C into a 5mL syringe, install the syringe on an electrospinning device, conduct electrospinning at a voltage of 18KV, a solution supply rate of 5mL / h, and a receiving distance of 20cm, and collect the product with a stainless steel plate;

[0035] 5) After the spinning product is dried, it is calcined at 500°C in an air atmosphere to obtain TiO 2 nanotube;

Embodiment 3

[0037] 1) Add acetylacetone and tetrabutyl titanate in sequence to absolute ethanol at a volume ratio of 1:1:1, and mix them uniformly to obtain solution A;

[0038] 2) Add polyvinylpyrrolidone with a mass ratio of 12% to solution A, and completely dissolve to obtain solution B;

[0039] 3) Add liquid paraffin with a volume ratio of 12% to solution B, and stir for 48 hours to obtain solution C;

[0040] 4) Put solution C into a 5mL syringe, install the syringe on an electrospinning device, conduct electrospinning at a voltage of 18KV, a solution supply rate of 5mL / h, and a receiving distance of 20cm, and collect the product with a stainless steel plate;

[0041] 5) After the spinning product is dried, it is calcined at 500°C in an air atmosphere to obtain TiO 2 nanotube;

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Abstract

The invention discloses a preparation method of TiO2 nanotubes with a controllable tube wall thickness, the preparation method is characterized by comprising the following steps of: (1) sequentially adding acetylacetone and tetrabutyl titanate into absolute ethyl alcohol to obtain a solution A; (2) adding polyvinyl pyrrolidone to the solution A to be completely dissolved to obtain a solution B; (3) dripping liquid paraffin into the solution B, and stirring for 48h to obtain a solution C; (4) filling the solution C into a syringe, performing electrostatic spinning under certain conditions, andcollecting a spinning product by using a stainless steel disc; and (5) after the spinning product is dried, calcining the spinning product at 500 DEG C in air atmosphere to obtain the TiO 2 nanotubes.According to the invention, the TiO2 nanotubes with different tube wall thicknesses are prepared by changing the ratio of the tetrabutyl titanate, the polyvinyl pyrrolidone and the liquid paraffin, and the light absorption capacity of the TiO2 nanotubes is further regulated and controlled.

Description

technical field [0001] The invention relates to the technical field of material forming, in particular to a TiO with controllable wall thickness 2 Methods for the preparation of nanotubes. Background technique [0002] The industrial production process produces a large amount of industrial wastewater, which not only pollutes the environment, but also poses a great hazard to human health, and must be treated before being discharged. Traditional industrial wastewater treatment methods mainly include physical methods, chemical methods and biological methods, which have the disadvantages of limited treatment capacity and high treatment costs. [0003] In recent years, photocatalytic oxidation technology has been widely used in the treatment of industrial wastewater. TiO 2 Photocatalytic oxidation technology has the advantages of strong oxidative degradation ability, stable performance, low treatment cost and no secondary pollution, but it has a wide band gap (3.2eV) and low u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/08B82Y40/00C02F1/30C02F1/72B01J21/06
CPCB01J21/063B01J35/004B82Y40/00C01G23/08C01P2002/84C01P2004/03C01P2004/04C01P2004/13C02F1/30C02F1/725C02F2305/10
Inventor 杨艳玲邹鑫鑫毕雅欣和茹梅陈华军孙瑜锁国权陈志刚冯雷朱建锋叶晓慧张荔侯小江
Owner SHAANXI UNIV OF SCI & TECH
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