COMPARATIVE STUDY ON SYNTHESIS OF METAL ORGANIC FRAMEWORK-199 BY MICROWAVE AND SOLVOLTHERMAL PROCESS

Abstract

In the present paper, a comparative study on the synthesis of metal organic framework-199 by microwave and solvolthermal method was demonstrated. The obtained materials were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), nitrogen adsorption/desorption isotherms and thermal gravity (TG). The microwave synthesis of MOF-199 has been compared to its conventional hydrothermal synthesis. It is found that by using microwave synthesis MOF-199 can be obtained in a much shorter synthesis time with improved yield and textural properties. It is supposed that the microwave energy emitted fast and uniformly, creating nuclei through the solution which quickly grew to crystals and both the nucleation and crystallization steps were accelerated. These make the microwave synthesis advantages over solvolthermal synthesis.