A kind of preparation method and application of manganese titanate nano sheet material

A technology of manganese titanate nano and sheet materials, which is applied in the direction of nanotechnology, chemical instruments and methods, manganese compounds, etc., can solve the problems of few surface active sites and large particle size of manganese titanate, and achieve rich surface active centers and particles And the effect of uniform particle size and good dispersion

Active Publication Date: 2020-01-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that the manganese titanate prepared by the existing method has a large particle size and few surface active sites, and provides a preparation method and application of a manganese titanate nanosheet material

Method used

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  • A kind of preparation method and application of manganese titanate nano sheet material
  • A kind of preparation method and application of manganese titanate nano sheet material
  • A kind of preparation method and application of manganese titanate nano sheet material

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specific Embodiment approach 1

[0036] Specific embodiment one: the preparation method of manganese titanate nano sheet material of this embodiment comprises the following steps:

[0037] 1. Dissolving manganese salt and titanium salt in deionized water to obtain manganese salt and titanium salt solution;

[0038] Two, organic base is then dissolved in the manganese salt and titanium salt solution that step one obtains, as shape control agent;

[0039] 3. Dissolving caustic alkali in deionized water to form a caustic alkali solution, and then adding the caustic alkali solution to the manganese salt and titanium salt solutions to react to form manganese and titanium hydroxide precursors;

[0040] 4. Transfer the manganese-titanium hydroxide precursor obtained in step 3 into a hydrothermal kettle, and heat at 100-220°C for 5-15 hours to obtain manganese titanate nanosheet materials with different shapes;

[0041] 5. After washing and drying the manganese titanate nanosheet material, the finished product is ob...

specific Embodiment approach 2

[0043] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: the titanium salt tetrabutyl titanate, isopropyl titanate, titanium oxysulfate, hexafluorotitanic acid, potassium fluorotitanate, fluorine The concentration of titanium in ammonium titanate, tetraethyl titanate, titanium tetrachloride, titanium sulfate, titanium trichloride or potassium titanium oxalate, manganese salt and titanium salt solution is 5mmol / L-20mmol / L. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0044] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the concentration of titanium in the manganese salt and titanium salt solutions is 10 mmol / L. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a preparation method and application of a manganese titanate nanosheet material, and belongs to a preparation method and application of a nanometer material. The invention aims to solve the problems that the manganese titanate prepared by the conventional method has large particle size and few surface active sites. The preparation method comprises the following steps: 1, dissolving manganese salt and titanium salt into deionized water to obtain a solution of manganese salt and titanium salt; 2, dissolving organic alkali into the solution of manganese salt and titaniumsalt; 3, dissolving caustic alkali into deionized water to form a caustic alkali solution, adding the caustic alkali solution into the solution of manganese salt and titanium salt and carrying out a reaction to generate a manganese titanium hydroxide precursor; 4, transferring the manganese titanium hydroxide precursor into a hydrothermal kettle and heating to obtain manganese titanate nanosheet materials with different appearances; 5, washing and drying the manganese titanate nanosheet materials to obtain finished products. The material prepared by the method has uniformly particles and particle size, large specific surface area and rich surface active centers. The manganese titanate nanosheet material is applied to the field of nanometer materials.

Description

technical field [0001] The invention relates to a preparation method and application of a nanometer material. Background technique [0002] Semiconductor metal oxides with a perovskite structure are currently widely used in industrial production due to their universal properties such as stable structure, environmental friendliness, and high safety. And its other special characteristics, such as strong light absorption performance, large capacity, long cycle life, etc., enable it to be used in the research and development of photocatalysis, electrode materials, and battery materials. [0003] Most of the natural metal elements in the perovskite structure are stable, and new multi-component perovskite-type composite oxides can be formed by substituting or doping sites, thus having stable physical and chemical properties. Manganese titanate (MnTiO 3 ) as a commonly used perovskite family has the characteristics of easy-to-obtain raw materials, safety and non-toxicity, environ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G45/00B82Y40/00B01J23/34C02F1/72
CPCB01J23/34B82Y40/00C01G45/00C01P2002/72C01P2004/04C01P2004/22C01P2004/24C01P2004/62C02F1/725C02F2101/308
Inventor 马军汪达徐浩丹卢晓辉
Owner HARBIN INST OF TECH
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