Energy-efficient sonochemical approach for the preparation of nanohybrid composites from graphene oxide and metal-organic framework

Two-fold interpenetration zinc-based metal-organic framework/graphene oxide (TMU-16-NH2/GO) nanohybrid materials were synthesized under a green, simple and large-scale sonochemical preparation method at room temperature and atmospheric pressure. The role of concentrations of graphene oxide on size and morphology of nanostructures TMU-16-NH2/GO hybrid have been studied. The materials were characterized by scanning electron microscopy (SEM), powder X-ray diffraction (PXRD), Fourier transform infrared (FTIR) spectroscopy and nitrogen adsorption. Both of the pure MOF and the nanohybrid MOF/GO composites exhibit microporous structure with a small number of mesopores. TMU-16-NH2 shows type IV isotherm with a H4 hysteresis loop, while the isotherm of TMU-16-NH2/GO appears to show normal Type II adsorption with a Type H3 hysteresis loop. The results obtained demonstrate this method to be applicable to the synthesis of other MOFs/GO nano hybrids and may possibly find various forthcoming industrial and technological applications.