CO2 adsorption of metal organic framework material Cu-BTC via different preparation routes

Abstract

In this work, Cu3(BTC)2 (Cu-BTC) metal organic framework (MOF), also known as HKUST-1, was prepared by 3 different synthetic route. The synthesized Cu-BTC materials were characterized by powder X-ray diffraction (XRD) for phase structure, scanning electron microscopy (SEM) for crystal structure, thermogravimetric analysis (TGA) for thermal stability, and nitrogen adsorption-desorption for pore textural structure. The results showed that the sample synthesized by microwave method has the high surface area and pore volume of 1721 m2g-∈1 and 0.7424 cm 3g-∈1, respectively. Among the three synthetic methods, the sample synthesized by microwave method exhibited a CO2 uptake of 23.3% at 25 °C and ambient pressure. © 2012 Springer-Verlag Berlin Heidelberg.