Ultrasound-assisted synthesis of nanorods 3D zinc(II) metal-organic framework; Precursor for the fabrication of ZnO nano-structure

Nanorodes of a three-dimensional Zn(II) metal-organic framework, [Zn2(btec)(DMF)2]n(1)(btec = 1,2,4,5-benzenetetracarboxylate, DMF = N,N-dimethylformamide), have been synthesized by a sonochemical process andcharacterized by Field Emission Scanning Electron Microscopy (FE-SEM), powder XRD and FT-IR spectroscopy.Structural determination of compound 1 was determined by single crystal X-ray diffraction. The thermal stability ofcompound 1 has been studied by thermal gravimetric analysis (TGA), too. The role of initial reagent concentrations onsize and morphology of nano-structured compound 1 have been studied. ZnO nano-structures also were simplysynthesized by direct calcination of the single crystals and nano-sized compound 1 at 600 °C. The size andmorphology of the ZnO nano-structures are dependent upon the particles size of compound 1. A decrease in theparticles size of compound 1 leads to a decrease in the particles size of the ZnO.

کلیدواژه ها:

Metal-organic framework ، Sonochemical ، Ultrasound ، Nano-structure ، Single crystal X-ray diffraction