A facile synthesis of PCN-222(M) (M=Cu, Fe, Mn) and long term stability analysis in aqueous media

A zirconium based porphyrinic metal-organic framework (PCN-222(M) (M=Cu, Fe, Mn)) has been synthesized by a simple, scalable sonochemical preparation method without high temperature in a short period of time (PCN-222(M)-U). For the first time, stability of PCN-222(M) in the water was investigated for 3 months (PCN-222(M)-3) [1]. In this work, MOFs have been synthesized by heating under reflux and sonochemical irradiation. Sonochemical method has been proven an efficient procedure.MOFs have been characterized by FTIR spectroscopy, Powder X-ray Diffraction (PXRD), Scanning Electron Microscopy (SEM), Thermal Gravimetric Analysis (TGA) and the large specific surface areas have been determined byBrunauer-Emmet-Teller (BET) method.Briefly, 50 mg of PCN-222(M) were dispersed in amount of deionized water for 15 minutes [2]. Then the solution kept at 250 C for 3 months.The powder X-ray diffraction (PXRD) patterns of PCN-222(M)-U and PCN-222(M)-3 indicate similar peaks for MOFs suggesting that no extra phase creation or framework collapse happens during ultrasound irradiation method or water aged MOF