Synthesis And Properties Investigation Of Composite And Functional Metal-Organic Frameworks

Metal-organic frameworks(MOFs),as a class of tunable porous crystalline materials,have received considerable research interest from chemists in recent years.MOFs have potential applications in many important areas of gas storage and separation,fluorescence detection,catalysis and drug delivery due to the large specific surface area and porosity,design flexibility and uniform pore structure.MOFs are porous coordination polymers made by combining metal ions with organic ligands.However,the controlled integration of MOFs and functional materials is forming a new multifunctional composite material that has advantages over single new features of materials.Therefore,in this dissertation,we adopt the strategy of compounding functional materials and MOFs,select the appropriate metal,ligand and functional materials to control the reaction conditions and construct three kinds of MOFs composite functional materials.Through a series of test and characterization,the structure and function of these materials are systematically studied.The first chapter introduces the characteristics,development course and application of MOFs materials,and briefly explain the basis and significance of this thesis and the main achievements.In the second chapter,the synthesis of the composite rare earth metal-organic framework Tb-MOFs and the bimetallic EuTb-MOFs crystal materials was induced by using organic templating agents,and their unique fluorescence properties were studied in detail.In the third chapter,the composite metal-organic framework Rh6G@Zn-MOFs crystal material was constructed based on functional dye ligand strategy,and its dual emission self-calibrating MOFs sensor performance was systematically studied.Chapter four,based on the functional polyoxometalate strategy,a POM@MOFs composite was synthesized and its structure,stability and photocatalytic degradation of dyes were studied in depth.