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ZnTiO3 material and preparation method thereof

A technology of ethanol solution and butyl titanate, applied in the field of photocatalytic materials, can solve the problems of large particle size, poor photocatalytic performance, and low purity

Active Publication Date: 2020-12-15
HUANGSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

ZnTiO prepared by co-precipitation method in the prior art 3 The material has the problems of low purity, large particle size and poor photocatalytic performance

Method used

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  • ZnTiO3 material and preparation method thereof
  • ZnTiO3 material and preparation method thereof
  • ZnTiO3 material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] S1, the preparation of the solution

[0038] (1) Preparation of 0.02mol / L zinc acetate ethanol solution

[0039] Turn on the analytical balance and preheat for half an hour, use weighing paper to weigh 0.1790g of zinc acetate dihydrate solid powder; put the weighed powder into a beaker, add 40mL absolute ethanol to the beaker, and stir with a magnetic stirrer at room temperature , and stir until completely dissolved.

[0040] (2) Preparation of 0.02mol / L butyl titanate ethanol solution

[0041] Weigh 40mL of absolute ethanol solution using a 50mL graduated cylinder and pour it into a beaker. Place the beaker on a constant temperature heating magnetic stirrer for stirring, use a pipette to quickly and accurately measure 0.272 mL (272 μL) of butyl titanate, and drop the weighed butyl titanate into the absolute ethanol solution. The reactants were stirred at room temperature with a constant temperature heating magnetic stirrer until completely dissolved.

[0042] S2. U...

Embodiment 2

[0044] The difference between this example and Example 1 is that in step S2, after "slowly add 40mL of butyl titanate ethanol solution to the beaker of zinc acetate ethanol solution, and add while stirring", add "use a dropper to measure 4.8mL triethylamine, slowly add in the stirring beaker, continue to stir until the reaction is complete after adding dropwise ", all the other conditions are consistent with embodiment 1, make the ZnTiO regulated by triethylamine 3 .

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Abstract

The invention relates to the field of photocatalytic materials, in particular to a ZnTiO3 material and a preparation method thereof. According to the preparation method, zinc acetate dihydrate is usedas a zinc source, butyl titanate is used as a titanium source, a zinc acetate ethanol solution and a butyl titanate ethanol solution are mixed for reaction, and the generated white precipitate is dried and calcined to prepare the ZnTiO3 material. Organic small molecular triethylamine is added into a reaction system to serve as a soft template to regulate and control the morphology and structure of ZnTiO3, and the ZnTiO3 material with higher purity and more uniform particle size distribution is prepared. The photocatalytic performance of the ZnTiO3 material is investigated by taking malachitegreen as a target degradation product under the irradiation of a xenon-mercury lamp, and the photocatalytic effect of the ZnTiO3 material prepared by adding triethylamine is proved to be better.

Description

technical field [0001] The invention relates to the field of photocatalytic materials, especially a kind of ZnTiO 3 Materials and their preparation methods. Background technique [0002] Zinc titanate is a composite oxide of perovskite structure, which can be expressed as ABO 3 , The ionic radius and electronegativity of A and B elements affect its photocatalytic performance. Zinc titanate is stable, non-toxic, harmless, and has high catalytic efficiency. It has good semiconductor properties and optical and electrical properties. It is the best photocatalyst. One of the best candidate materials. Therefore, regulating the preparation of zinc titanate is of great significance to environmental protection and photocatalytic utilization. Zinc titanate has a stable perovskite structure, and its unique band gap gives it an advantage in photocatalytic performance. At the same time, due to its large band gap, the utilization rate of zinc titanate to sunlight is low, which limits ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/00B01J23/06B01J35/10B01J37/03
CPCC01G23/003B01J23/06B01J23/002B01J37/03C01P2006/12C01P2004/03C01P2002/72C01P2002/84C01P2004/61B01J35/61B01J35/60B01J35/39
Inventor 陈龙赵屹陈思凡郑玉船潘乐朱旭宏王俊波李良清
Owner HUANGSHAN UNIV
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