Study On Preparation And Properties Of Oxidation Of SBA-15/MCM-41Modified By Schiff Base

Mesoporous materials are of great interest to the materials community because their pore structures, which have larger specific surface (>1000m2g-1), wider aperture (2-50nm) and arranged orderly. And there are large number of hydroxyl in its surface, which make some functional groups be fixed in its pore, due to its special charcterisics,provides great opportunities for immobilization of large organic substrates. And the heterogeneous catalyst as well as adsorption、separation and catalytic etc. can readily be tailored.Schiff base compounds are great organics, which containing a class of C=N and application involves to many fields such as antibacterial, cancer, tuberculosis, antiviral,other pharmacological activities and High catalytic activity, It has been widely used in many organic reactions, such as oxidation, Henry、Aldol、Friedel-Crafts、Diels-Alder reaction and reduction of ketones. Therefore, there is a great active to study schiff base complexes and catalytic properties of transition metal complexes have become research hotspot in recent years. However, numerous schiff base compound catalyst is difficult seperated from homogeneous, which Bring a lot of hard scientific research. And when using mesoporous molecular sieve SBA-15/MCM-41as agents, many functional group can modified the agents, Not only greatly improve its catalytic properties, and the modification of heterogeneous catalyst can be reused many times, which has solved the problems such as difficult separation and difficult recovery. This paper mainly introduces the mesoporous molecular sieve SBA-15modified schiff base and its catalytic properties were studied.The thesis was made up of two important parts.The first part is literature review. It mainly introduced Research situation and application of mesoporous molecular sieve SBA-15/MCM-41in this part. In addition, the progress of oxidation of styrene, benzaldehyde, benzyl alcohol, ion probe are introduced in the part.The second part is experiment content. Five parts were incoulding.1. Synthesis and schiff base complexes modified mesoporous molecular sieve SBA-15/MCM-41, and anlaogue display by FI-IR、TEM、SEM、XRD、 BET.2. The oxidation of benzaldehyde catalyzed by schiff base andcobalt complexes modified SBA-15/MCM-41.3. The oxidation of styrene catalyzed by schiff base modified SBA-15/MCM-41and metal salt4. The oxidation of benzyl alcohol catalyzed by Schiff base modified SBA-15/MCM-41and metal salt.5. The research of Schiff base modified mesoporous molecular sieves SBA-15/MCM-41in ion probe.