A kind of synthesis method of heteroatom-containing micron cavity reactor type hbmz zeolite molecular sieve

Abstract

The invention discloses a method for synthesizing a heteroatom-containing micron cavity reactor type HBMZ zeolite molecular sieve. The method comprises the following steps: first mixing a metal source, a silicon source, an organic template agent, a complexing agent, a mineralizer, and water Uniform, microwave or ultrasonic heating and stirring reaction, and then the reaction mixture is subjected to hydrothermal crystallization and purification treatment in turn to obtain the raw HBMZ zeolite molecular sieve powder; then, the raw HBMZ zeolite molecular sieve powder is fully mixed and reacted with an acidic solution to obtain an acid-treated product ; Finally, the acid-treated product is subjected to high-temperature roasting treatment to obtain HBMZ zeolite molecular sieve. The heteroatom-containing micro-cavity reactor type HBMZ zeolite molecular sieve prepared by the present invention has a unique bird's-nest-like micro-cavity structure feature, highly exposed metal active sites and overhead ultra-thin nanosheets are beneficial to reactant molecules in the catalytic reaction process And the diffusion of product molecules and the formation of intermediates provide an ideal reaction site for the occurrence of catalytic reactions.

Description

technical field [0001] The invention relates to the technical field of inorganic chemical synthesis, in particular to a method for synthesizing a heteroatom-containing micron cavity reactor type HBMZ zeolite molecular sieve. Background technique [0002] With the continuous development of nanotechnology, the concept of nanoreactor was gradually proposed and quickly became a research hotspot in the fields of energy storage, chemical synthesis and biomedicine. Integrating different porous materials with other functional nanomaterials at the nanometer scale, thus obtaining composite porous functional materials with different nanostructures. At present, researchers have constructed some new multifunctional porous materials, such as porous materials with egg yolk-shell structure, porous materials with core-shell structure, porous materials with hollow structure, and three-dimensional assembled porous materials. Hollow microsphere is a kind of porous material with hollow structur...

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Problems solved by technology

Although the zeolite molecular sieve prepared by this method has a multi-level pore structure, the preparation process of the material is cumbersome and the preparation time is as long as 3 to 30 days.

[0006] However, there are still few studies on the direct preparation of micron-cavity reactor-type zeolite molecular sieves with heteroatom-containing bird's nest crystal structure in the next step without a hard template, which limits the application in catalytic reactions.

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