چكيده به لاتين
Abstract:
In this project, a metal-organic framework based on cobalt and nickel noted as Co/Ni-MOF and its composite with BiFeO3 have been successfully synthesized. In the synthesized metal-organic framework metal nodes and linkers are nickel, cobalt and terephtalic acid and pyrazine, respectively. In the synthesized metal-organic framework metal centers and used connectors were cobalt and nickel metals and terephtalic acid and pyrazine ligands, respectively. Since the one of the major drawbacks of metal-organic frameworks is their low thermal and moisture stability, this problem somehow have been solved with the aid of mixed stable cobalt and nickel metals. Another reason for using of this MOF is that they fulfill the practical goals. One of the goals in this research is the use of this metal-organic framework as a catalyst for the synthesis of substituted imidazoles under mild solvent-free conditions. High surface area up to 1054 m2/g, selective pores and empty orbitals or unsaturated metal nodes that can easily coordinate with the substrates, are driving force for the imidazoles synthesis. Given that MOFs can be brought in the composite form with the other compounds such as metal-oxides. In this research, a mixed metal-oxide noted as BiFeO3 with the MOF have been synthesized. Its photocatalytic and catalytic application have been investigated. According to the Obtained results of photocatalytic and catalytic activities that have been shown the 98 and 99 percent of conversion, respectively. MOF based on cobalt and nickel and its composite noted as MOF/BiFeO3 have been characterized with the FT-IR, TGA/DTA, BET, FESEM, PXRD, EDX,TEM and DRS characterization techniques.
Keywords: Metal-Organic framework, cobalt, nickel, composite, MOF/BiFeO3
