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Sea urchin-shaped aluminum oxyhydroxide ball and preparation method thereof

A technology of aluminum oxyhydroxide and sea urchin shape, which is applied in the field of preparation of aluminum oxyhydroxide functional materials, and achieves the effects of wide application prospects, high surface area, and simple preparation process

Inactive Publication Date: 2016-05-25
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are no reports about sea urchin-shaped aluminum oxide oxyhydroxide microspheres, and the research of new sea urchin-shaped aluminum oxyhydroxide microspheres can promote the application of aluminum oxyhydroxide

Method used

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  • Sea urchin-shaped aluminum oxyhydroxide ball and preparation method thereof
  • Sea urchin-shaped aluminum oxyhydroxide ball and preparation method thereof
  • Sea urchin-shaped aluminum oxyhydroxide ball and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] 1.1 Add 0.2mL of deionized water to 20mL of absolute ethanol, add 0.2μL of thioglycolic acid dropwise to the mixed solution of ethanol and water under stirring conditions, and finally stir fully at room temperature to obtain a uniform and transparent The solution;

[0029] 1.2 Add 0.058 g of aluminum isopropoxide to the solution prepared in Example 1.1, and stir fully at room temperature to obtain a uniform white emulsion;

[0030] 1.3 The emulsion obtained in Example 1.2 was transferred to a reaction kettle, and reacted at 220°C for 20 hours. After the reaction was completed, aluminum oxyhydroxide microspheres were obtained by centrifugal separation and washing.

[0031] figure 1 Scanning electron micrographs of the obtained samples, figure 2 It is a transmission electron microscope photo of the obtained sample. As can be seen from the figure, the product is spherical, with a fluffy structure on the surface of the ball, similar to the shape of a sea urchin, and the ...

Embodiment 2

[0033] 2.1 Add 0.2 mL of deionized water to 20 mL of absolute ethanol, add 0.2 μL of thioglycolic acid dropwise to the mixed solution of ethanol and water under stirring conditions, and stir well to obtain a uniform and transparent solution;

[0034] 2.2 Add 0.058 g of aluminum isopropoxide to the solution prepared in Example 2.1, and stir fully at room temperature to obtain a uniform white emulsion;

[0035] 2.3 Transfer the emulsion obtained in Example 2.2 to a reaction kettle, and react at 300°C for 20 hours. After the reaction is completed, aluminum oxyhydroxide microspheres are obtained by centrifugation and washing, with the same appearance as figure 1 , and its particle size is 400-550nm.

Embodiment 3

[0037] 3.1 Add 0.2mL of deionized water to 20mL of absolute ethanol, add 0.2μL of thioglycolic acid dropwise to the mixed solution of ethanol and water under stirring conditions, and finally stir fully at room temperature to obtain a uniform and transparent The solution;

[0038] 3.2 Add 0.248 g of aluminum isopropoxide to the solution prepared in Example 3.1, and stir well at room temperature to obtain a uniform white emulsion;

[0039] 3.3 Transfer the emulsion obtained in Example 3.2 to a reaction kettle, and react at 200°C for 20 hours. After the reaction is completed, obtain pure aluminum oxyhydroxide microspheres with the same morphology as figure 1 , and its particle size is 250-400nm.

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Abstract

The invention discloses a sea urchin-shaped aluminum oxyhydroxide ball and a preparation method thereof. The surface of the aluminum oxyhydroxide ball has a fluffy structure and the appearance is a sea urchin. The preparation includes the following steps: taking a mixed solution of water and alcohol, and dropping Mercapto carboxylic acid inducer, stir to obtain a uniform solution, add aluminum salt to the uniform solution, stir evenly to obtain an emulsion; heat the emulsion to react to prepare aluminum oxyhydroxide; after the reaction, centrifuge and wash the reaction solution, Sea urchin-shaped alumina oxyhydroxide balls were obtained. The invention adopts a simple one-step solvothermal method to prepare sea urchin-shaped aluminum oxyhydroxide balls with a particle size of less than 1 micron. The preparation process is simple, and the prepared product has a novel appearance and a high surface area, because a high specific surface corresponds to a high reactivity , so it is beneficial to adsorb heavy metal ions in pollutants or be used to catalyze the degradation of organic matter, so it has broad application prospects in the fields of adsorbents and catalysts.

Description

technical field [0001] The invention relates to a sea urchin-shaped aluminum oxyhydroxide ball and a preparation method thereof, belonging to the technical field of preparation of aluminum oxyhydroxide functional materials. Background technique [0002] The shape of materials directly affects the properties of materials. Materials with special shapes have important applications in different fields. Therefore, many researchers pay attention to the research on the relationship between the properties and synthesis of materials with different shapes. Aluminum oxyhydroxide is a relatively cheap material with a wide range of applications. Because aluminum oxyhydroxide has excellent characteristics such as low density, large specific surface area, and good thermochemical stability, it is widely used in catalysts, adsorbents, abrasives, Ceramics, thin films and other fields. So far, various morphologies of aluminum oxyhydroxide have been prepared, such as: nanofibers, nanotubes, fl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01F7/02B82Y30/00B82Y40/00
CPCC01F7/02C01P2002/72C01P2004/03C01P2004/04C01P2004/32C01P2004/62
Inventor 杨萍宋雪玲贾长超
Owner UNIV OF JINAN
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