Amino functionalized mesoporous macromolecular small nanosphere and preparation method thereof

Abstract

The invention discloses an amino functionalized mesoporous macromolecule nano ball and a preparation method thereof. The nanospheres are spherical particles with a particle size of 100-200nm, and have a three-dimensional body-centered cubic phase mesoporous structure; the preparation method includes: taking m-nitrophenol, formaldehyde and phenol as raw materials, and synthesizing them by a hydrothermal method Nitro-functionalized polymer prepolymers, then hydrothermally treat the polymer prepolymers at a temperature of 120-130oC for 16-24 hours, then cool to room temperature, and separate the solids in the mixed reactants, then The solid is calcined at a temperature of 350-380°C in a protective atmosphere to obtain the target product. The amino-functionalized mesoporous polymer nanospheres of the present invention have high amino content, large specific surface area, three-dimensional body-centered cubic phase mesoporous structure and three-dimensional shape, and the preparation process is simple and controllable, and the cost is low. It has broad application prospects in the fields of carbon dioxide adsorption and heavy metal ion adsorption.

Description

technical field [0001] The invention relates to a mesoporous polymer nanometer material and a preparation process thereof, in particular to an amino functionalized mesoporous polymer nanometer ball and a preparation method thereof. Background technique [0002] Traditional mesoporous materials have many advantages and have been widely used in the fields of catalysis, adsorption and energy storage. However, traditional mesoporous materials are mostly prepared by solvent evaporation-induced self-assembly method (EISA), which has low yield and heavy workload, and the prepared materials are macroscopically disordered, with irregular morphology and long channels. , these factors will lead to unfavorable mass transfer and diffusion, which will seriously restrict the application of traditional mesoporous materials in the fields of catalysis and adsorption. Contents of the invention [0003] The main purpose of the present invention is to provide an amino-functionalized mesoporou...

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Problems solved by technology

However, traditional mesoporous materials are mostly prepared by solvent evaporation-induced self-assembly method (EISA), which has low yield and heavy workload, and the prepared materials are macroscopically disordered, with irregular morphology and long channels. , these factors will lead to unfavorable mass transfer and diffusion, which will seriously restrict the application of traditional mesoporous materials in the fields of catalysis and adsorption.

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