Preparation method and application of hierarchical pore carbon material

Abstract

The invention relates to a preparation method of a hierarchical pore carbon material, and belongs to the technical field of material preparation. The preparation method of the hierarchical pore carbonmaterial comprises the steps: boiling gallnut, drying and grinding to obtain gallnut powder; uniformly mixing the gallnut powder with water to obtain a gallnut precipitate and a gallnut mixed liquid;centrifuging and filtering to obtain the gallnut precipitate; uniformly mixing the gallnut precipitate with water, and stirring at the temperature of 30 DEG C for 1 h to obtain a gallnut mixed solution; drying the gallnut mixed solution, uniformly mixing the gallnut mixed solution with water, and centrifuging to obtain a dark brown gallnut extracting solution; and uniformly mixing the gallnut extracting solution with a triblock polymer F-127 solution, standing and precipitating the mixed solution for 24 h, drying the precipitate at the temperature of 80 DEG C, and carbonizing to obtain the hierarchical pore carbon material prepared from gallnut. The preparation method has the beneficial effects that the carbon material with the hierarchical pore structure and the pore size distribution range of 10-50 nm is produced and obtained by a green and pollution-free manner, and the reduction of resistance during molecular diffusion is better facilitated.

Description

technical field [0001] The invention belongs to the field of material preparation, and in particular relates to a preparation method of a hierarchical porous carbon material. Background technique [0002] Activated carbon is a carbonaceous adsorption material prepared from carbonaceous materials such as coal, forest wood, and fruit shells. It is widely used in gas adsorption, separation, purification, and body purification. However, with the development of society, higher requirements are put forward for its performance. However, most of the existing porous carbon materials are of microporous structure, resulting in a low opening degree, which hinders its further application. However, most of the existing hierarchical porous carbon materials use harmful and carcinogenic substances such as formaldehyde as raw materials in the synthesis process, which is very harmful to the environment and human body. Contents of the invention [0003] In order to solve the above-mentioned ...

AI Technical Summary

Problems solved by technology

However, with the development of society, higher requirements are put forward for its performance. However, most of the existing porous carbon materials are of microporous structure, resulting in a low opening degree, which hinders its further application.

However, most of the existing hierarchical porous carbon materials use harmful and carcinogenic substances such as formaldehyde as raw materials in the synthesis process, which is very harmful to the environment and human body.

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