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Multifunctional photocatalytic high-dispersion titanium dioxide and preparation method thereof

A titanium dioxide, photocatalysis technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of difficulty in dispersion and limitation, and achieve the effect of improving the dispersion effect and expanding the application field.

Active Publication Date: 2018-08-17
JIANGXI LONGZHENG SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] On the other hand, nano-titanium dioxide has strong optical activity and is not easy to disperse in organic media, which limits its application in many fields, and it needs to be surface modified to effectively improve the dispersion effect of nano-titanium dioxide

Method used

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  • Multifunctional photocatalytic high-dispersion titanium dioxide and preparation method thereof
  • Multifunctional photocatalytic high-dispersion titanium dioxide and preparation method thereof
  • Multifunctional photocatalytic high-dispersion titanium dioxide and preparation method thereof

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Embodiment 1

[0027] A multifunctional photocatalytic high-dispersion titanium dioxide is characterized in that the titanium dioxide is composed of modified nano-eurium, europium and ytterbium co-doped nano-titanium dioxide, and the particle size of the nano-titanium dioxide is 10-100 nm.

[0028] Wherein, the preparation process of the modified europium nitrogen and ytterbium co-doped nano-titanium dioxide includes the following steps:

[0029] (1) Preparation of solution A: measure 20ml of butyl titanate and add it to 30ml of absolute ethanol, and stir it electromagnetically;

[0030] (2) Preparation of solution B: a certain amount of triethylamine, 10% distilled water, 0.30mL of concentrated nitric acid and a certain amount of Yb(NO 3 ) 3 ·5H 2 O and a certain amount of Eu(NO 3 ) 3 ·6H 2 O was added to 10mL of absolute ethanol; wherein, the amount of triethanolamine was based on the amount of N element and TiO 2 The molar ratio is calculated as 0.5%; Yb(NO 3 ) 3 ·5H 2 The amount...

Embodiment 2

[0037] A multifunctional photocatalytic high-dispersion titanium dioxide is characterized in that the titanium dioxide is composed of modified nano-eurium, europium and ytterbium co-doped nano-titanium dioxide, and the particle size of the nano-titanium dioxide is 10-100 nm.

[0038] Wherein, the preparation process of the modified europium nitrogen and ytterbium co-doped nano-titanium dioxide includes the following steps:

[0039] (1) Preparation of solution A: Measure 40 mL of butyl titanate and add it to 60 mL of absolute ethanol, and stir it electromagnetically;

[0040] (2) Preparation of solution B: a certain amount of triethylamine, 20 mL of distilled water, 1 mL of concentrated nitric acid and a certain amount of Yb(NO 3 ) 3 ·5H 2 O and a certain amount of Eu(NO 3 ) 3 ·6H 2O was added to 20mL of absolute ethanol; wherein, the amount of triethanolamine was based on the amount of N element and TiO 2 The molar ratio is calculated as 1.5%; Yb(NO 3 ) 3 ·5H 2 The am...

Embodiment 3

[0047] A multifunctional photocatalytic high-dispersion titanium dioxide is characterized in that the titanium dioxide is composed of modified nano-eurium, europium and ytterbium co-doped nano-titanium dioxide, and the particle size of the nano-titanium dioxide is 10-100 nm.

[0048] The preparation process of the modified europium nitrogen ytterbium co-doped nano-titanium dioxide comprises the following steps:

[0049] (1) Preparation of solution A: Measure 30 mL of butyl titanate and add it to 45 mL of absolute ethanol, and stir it electromagnetically;

[0050] (2) Preparation of solution B: a certain amount of triethylamine, 15mL of distilled water, 0.7mL of concentrated nitric acid and a certain amount of Yb(NO 3 ) 3 ·5H 2 O and a certain amount of Eu(NO 3 ) 3 ·6H 2 O was added to 15mL of absolute ethanol; wherein, the amount of triethanolamine was based on the amount of N element and TiO 2 The molar ratio is calculated as 2.5%; Yb(NO 3 ) 3 ·5H 2 The amount of O a...

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Abstract

The invention relates to multifunctional photocatalytic high-dispersion titanium dioxide and a preparation method thereof. The titanium dioxide is prepared through codoping modified nitrogen-europium-ytterbium with nano titanium dioxide. The preparation method comprises the following steps: (1) preparation of a solution A: weighing butyl titanate, and adding the weighed butyl titanate into anhydrous ethanol; (2) preparation of a solution B: adding triethylamine, distilled water, concentrated nitric acid, Yb(NO3)3.5H2O and Eu(NO3)3.6H2O into anhydrous ethanol; (3) dropwise adding the solution Ainto the solution B, so as to obtain nitrogen-europium-ytterbium codoped nano titanium dioxide; (4) adding the nitrogen-europium-ytterbium codoped nano titanium dioxide obtained in the step (3) intoa modifier for modifying treatment, thereby obtaining modified nitrogen-europium-ytterbium codoped nano titanium dioxide. The titanium dioxide disclosed by the invention has very high photocatalytic efficiency and dispersion effect, and the prepared titanium dioxide has a broad field of application.

Description

technical field [0001] The invention relates to a titanium dioxide and a preparation method thereof, in particular to a multifunctional photocatalytic high-dispersion titanium dioxide and a preparation method thereof. Background technique [0002] Since the beginning of the 21st century, with the acceleration of my country's modernization construction and the rapid development of the industrial field, problems such as ecological deterioration, air quality decline, and water pollution have also emerged, and have now become the focus of attention from all walks of life. In view of the current situation in our country, it is urgent to find some effective methods to solve the above problems, the most effective of which is to continuously excavate materials that can optimize the ecological environment and have a wide range of sources. Therefore, "new energy" and "new materials" have emerged as the times require. While entering the public's field of vision, they are gradually repl...

Claims

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Application Information

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IPC IPC(8): B01J27/24C02F1/30
CPCC02F1/30B01J27/24C02F2101/308B01J35/39
Inventor 韩芳
Owner JIANGXI LONGZHENG SCI & TECH DEV
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