Mesopore solid alkali, mesopore functional material, its preparation method and application

Abstract

The present invention relates to a mesopore solid alkali and functional material. It is a mesopore silicon molecular sieve containing rare earth metal or transition metal atom and whose grain size is 4-10 nm, and has the mesopore silicon molecular sieve with alkali strength of 9.3-22.5. Said invented mesopore solid alkali and functional material can be used as cigarette additive capable of reducing nitrosamine content in the cigarettes smoke, and the total content of nitroso compound in the fire holding capacity of cigarette can be reduced by 30-47%.

Description

1. Technical field

[0001] The invention relates to functional mesoporous molecular sieve materials. 2. Background technology

[0002] Mesoporous molecular sieves have shown attractive application prospects in the fields of heterogeneous catalysis, supramolecular assembly, molecular separation, and photoelectric technology. As a new type of mesoporous material, SBA-15 has the advantages of large pore size, high specific surface area, and good hydrothermal stability, and has gradually become the focus of mesoporous material applications in recent years. However, due to the lack of acid-base sites on the surface of mesoporous silica molecular sieves such as SBA-15, they must be modified when used as catalysts or adsorbents, that is, the introduction of various functional guest substances such as metals or nonmetals and their compounds to modulate The surface properties of molecular sieves are what give them the desired adsorption / catalysis properties. However, the modificatio...