Synthesis And Characteration Of Nano Metal-Organic Frameworks

Along with the step for metal-organic frameworks (MOFs) becoming to the nanoscale metal-organic frameworks (NMOFs), the new burgeoning materials have attracted more attantions from the material sicentists. Beside the many advantanges of MOFs, the nanometer effect has afford the material with many fascinating chemical and physical properties that may potentially be applied in novel functional materials, biopharmacies, gas adsorption and seperation, sensor and NMR imaging etc. This dissertation focus on preparation of NMOFs with even smaller size for the well-known MOFs as follows:1. The NMOFs based on MIL-53(Al):By adjust synthetic parameters, the NMOF size of MIL-53(Al) was firstly prepared as20nm, which was characterized with XRD, SEM, TGA and nitrogen adsorption analysis.2. The NMOFs based on MIL-100(Al, Sc and Fe):The MOFs with MIL-100structure derived from different metal ions(Ⅲ) of Al, Sc and Fe can be prepared as NMOFs with the size30-50nm. They were all be characterized by XRD, SEM, TGA and nitrogen adsorption analysis.3. The NMOFs based on ZIF-8:NMOF of ZIF-8was firstly prepared by ultrasonic synthesis with a size of50nm, which is characreized with XRD, SEM, TGA and nitrogen adsorption analysis.