Safarifard Vahid, Morsali Ali
Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Islamic Republic of Iran.
Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14115-4838, Tehran, Islamic Republic of Iran.
Ultrason Sonochem. 2018 Jan;40(Pt A):921-928. doi: 10.1016/j.ultsonch.2017.09.014. Epub 2017 Sep 7.
Synthesis of metal-organic framework (MOF) materials via ultrasound (US) irradiation involves shorter reaction times and offers enhanced control of particle size and morphology compared to conventional electric (CE) heating. Nanocubes of an interpenetrated pillared-layer Zn(II) metal-organic framework, [Zn(NH-BDC)(4-bpdh)]·3DMF (TMU-16-NH) (NH-BDC=amino-1,4-benzenedicarboxylate, 4-bpdh=2,5-bis(4-pyridyl)-3,4-diaza-2,4-hexadiene, DMF=N,N-dimethylformamide), have been synthesized by US process and characterized by Field Emission Scanning Electron Microscopy (FE-SEM), powder X-ray diffraction, thermogravimetric analysis (TGA), elemental analysis and FTIR spectroscopy. The role of initial reagent concentrations and power levels of US irradiation and also reaction time, on size and morphology of nanostructure TMU-16-NH have been studied. Moreover, ZnO octahedral nanoparticles were simply prepared through direct pyrolysis of the TMU-16-NH nanocubes asa precursor at 520°C without any surfactant or capping molecules.
通过超声（US）辐射合成金属有机框架（MOF）材料相比传统电加热（CE），反应时间更短，并且能更好地控制颗粒尺寸和形态。一种互穿柱状层状锌（II）金属有机框架[Zn(NH-BDC)(4-bpdh)]·3DMF（TMU-16-NH）（NH-BDC = 氨基-1,4-苯二甲酸，4-bpdh = 2,5-双（4-吡啶基）-3,4-二氮杂-2,4-己二烯，DMF = N,N-二甲基甲酰胺）的纳米立方体已通过超声法合成，并通过场发射扫描电子显微镜（FE-SEM）、粉末X射线衍射、热重分析（TGA）、元素分析和傅里叶变换红外光谱进行了表征。研究了初始试剂浓度、超声辐射功率水平以及反应时间对纳米结构TMU-16-NH尺寸和形态的影响。此外，通过在520°C下直接热解TMU-16-NH纳米立方体作为前驱体，无需任何表面活性剂或封端分子，即可简单制备出ZnO八面体纳米颗粒。
