شماره ركورد كنفرانس :
5041
عنوان مقاله :
Synthesis and Characterization of Zr-Based Metal-Organic Frameworks
Author/Authors :
R. Kia Department of Chemical Engineering - Amirkabir University of Technology ( Tehran Polytechnic), Tehran, Iran , R. Halladj Department of Chemical Engineering - Amirkabir University of Technology ( Tehran Polytechnic), Tehran, Iran , S. Askari Department of Chemical Engineering - Islamic Azad University Science and Research Branch, Tehran, Iran
كليدواژه :
Metal-Organic Frameworks , UiO-66 , Thermal Stability , Surface Area
عنوان كنفرانس :
The 10th International Chemical Engineering Congress & Exhibition (IChEC 2018)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
Metal-organic frameworks (MOFs) have recently emerged as a center of attention among the class of more traditional porous materials including zeolites, activated carbons, and silica gels, due to their significantly larger pore volumes and tunability of pore geometry. However, MOFs have one major disadvantage, their weak stability. Zirconium-based MOFs of the UiO family have attracted considerable attention due to their high thermal, chemical and mechanical stability.
In this work, a series of zirconium-containing UiO-66 samples were synthesized by varying the synthesis temperatures in the synthesis system. The synthesized UiO-66 samples were characterized by X-ray diffraction (XRD), N2 adsorption-desorption, thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR). Results demonstrate that UiO-66-120 (120 indicates the synthesis temperature) has the highest surface area (1083 m2/g) and all the samples have good crystallinity and thermal stability in comparison with other MOFs.
