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Mo-C-codoped method for preparing one-dimensional titanate nanobelt photocatalyst material

A photocatalyst and nanobelt technology, applied in the field of nanomaterials and nanometers, can solve problems such as nanobelt materials that have not yet been seen, and achieve the effects of remarkable photocatalysis, reduction of synthesis cost and simple process

Active Publication Date: 2012-05-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of research reports on co-doping, Mo+C co-doped one-dimensional H 2 Ti 5 o 11 ·3H 2 Research report on the experimental preparation of O nanoribbon materials

Method used

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  • Mo-C-codoped method for preparing one-dimensional titanate nanobelt photocatalyst material
  • Mo-C-codoped method for preparing one-dimensional titanate nanobelt photocatalyst material
  • Mo-C-codoped method for preparing one-dimensional titanate nanobelt photocatalyst material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The Mo+C co-doped preparation method of one-dimensional titanate nanobelt photocatalyst material, it comprises the steps:

[0025] (1) Dissolve 45 mL of butyl titanate in 180 mL of absolute ethanol, then add 4.5 mL of glacial acetic acid, and adjust the pH to 3.0 with concentrated nitric acid (commercially available), accompanied by vigorous stirring;

[0026] (2) According to the mass ratio of Mo element / Ti element (0.125%, 0.25%, 0.33%, 0.64%, 1%, 1.29%, 5.15%), add ammonium molybdate aqueous solution (divided into 7 groups), stir for 1h, Then ultrasonically dispersed for 1.5h, dried at 80°C, and calcined at 500°C for 3h to obtain Mo-doped TiO 2 powder;

[0027] (3) TiO doped with Mo 2 Dissolve 3.33g of powder and 0.20g of glucose into a sodium hydroxide solution with a volume of 100mL and a concentration of 10M and stir vigorously for 40h to obtain a suspension solution;

[0028] (4) Then adopt the hydrothermal method to react hydrothermally at a temperature of 18...

Embodiment 2

[0037] The Mo+C co-doped preparation method of one-dimensional titanate nanobelt photocatalyst material, it comprises the steps:

[0038] (1) Dissolve 45 mL of butyl titanate in 180 mL of absolute ethanol, then add 4.5 mL of glacial acetic acid, adjust the pH to 3.0 with concentrated nitric acid (commercially available), and stir;

[0039] (2) Add ammonium molybdate aqueous solution according to the mass ratio of Mo element / Ti element 0.1, stir for 1 h, then ultrasonically disperse for 1.5 h, dry at 80°C, and calcinate the obtained product at 500°C for 3 h to obtain Mo-doped TiO 2 powder;

[0040] (3) TiO doped with Mo 2 Dissolve 3.33g of powder and 0.1g of glucose into a sodium hydroxide solution with a volume of 100mL and a concentration of 2M and stir vigorously for 30h to obtain a suspension solution;

[0041] (4) Then adopt the hydrothermal method to react hydrothermally at a temperature of 160° C. for 2 days, and adjust the pH value to 7.0 by adding HCl solution (0.1M...

Embodiment 3

[0045] The Mo+C co-doped preparation method of one-dimensional titanate nanobelt photocatalyst material, it comprises the steps:

[0046] (1) Dissolve 45 mL of butyl titanate in 180 mL of absolute ethanol, then add 4.5 mL of glacial acetic acid, adjust the pH to 3.0 with concentrated nitric acid (commercially available), and stir;

[0047] (2) Add ammonium molybdate aqueous solution according to the mass ratio of Mo element / Ti element 6%, stir for 1h, then ultrasonically disperse for 1.5h, dry at 80°C, and calcinate the obtained product at 500°C for 3h to obtain Mo-doped TiO 2 powder;

[0048] (3) TiO doped with Mo 2 Dissolve 3.33g of powder and 1.5g of glucose into a sodium hydroxide solution with a volume of 100mL and a concentration of 20M and stir vigorously for 50h to obtain a suspension solution;

[0049] (4) Then adopt hydrothermal method to react hydrothermally at a temperature of 220° C. for 4 days, and adjust the pH value to 7.0 by adding HCl solution (0.1M) dropw...

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Abstract

The invention relates to a method for preparing a one-dimensional titanate nanobelt photocatalyst material. A Mo-C-codoped method for preparing the one-dimensional titanate nanobelt photocatalyst material is characterized by comprising the following steps of: (1) dissolving butyl titanate in absolute ethanol and adding the glacial acetic acid according to a ratio of the butyl titanate to the absolute ethanol to glacial acetic acid of 45mL:180mL:4.5mL, regulating the pH value to be 3.0 by using concentrated nitric acid, and stirring; (2) adding aqueous solution of ammonium molybdate according to a mass ratio of Mo element to Ti element of 0.1 to 6 percent so as to prepare Mo-doped TiO2 powder; (3) dissolving the Mo-doped TiO2 powder and glucose in solution of sodium hydroxide according to a ratio of the Mo-doped TiO2 powder to the glucose to the solution of sodium hydroxide of 3.33g:0.1-1.5g:100mL so as to prepare turbid liquid; (4) regulating the pH value to be 7.0 by dipping HCl solution by adopting a hydrothermal method; and (5) filtering and drying to prepare the one-dimensional titanate nanobelt photocatalyst material. The method is simple in technology and high in repeatability, meets the environmental requirement and has obvious photocatalytic enhancement effect.

Description

technical field [0001] The present invention relates to one-dimensional titanic acid (H 2 Ti 5 o 11 ·3H 2 O) a method for preparing a nanoribbon material, belonging to the field of nanomaterials and nanotechnology. Background technique [0002] The development of society has brought about the intensification of pollution. Dye wastewater is one of the hot spots that people in the world are concerned about. The related fields of semiconductor catalytic oxidation have attracted extensive research. TiO 2 The base material has the characteristics of non-toxicity, stability, reusability, high photocatalytic effect, and the use of solar energy without pollution, so that it has great application prospects in wastewater treatment, but currently TiO 2 Due to its wide bandgap (3.2eV), the response to visible light is extremely weak. Therefore, how to improve the utilization of visible light in the spectral range is also a major issue that needs to be solved urgently. One-dimensi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/28B01J35/02
Inventor 刘曰利陈文舒威蔡祎周静
Owner WUHAN UNIV OF TECH
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