Design and preparation of succinic acid-based metal-organic frameworks for co2 adsorption technology

Abstract

Increasing amount of CO2 in the atmosphere caused by human activities has quickly become one of the most urgent environmental issues. CO2 Capture and Storage (CCS) is a promising option as it can reduce the amount of CO2 emissions in the atmosphere. It is critical to develop an efficient separation technique for capturing CO2 from the gas streams. One of the technologies in CCS is utilizing a crystalline porous material called Metal-Organic Frameworks (MOFs). To take the advantages of MOF due to the ease of modification, we designed bio related ligand from natural products in the form of porous framework. Bio-MOFs discussed in this research is made from Chromium (III) Nitrate and Succinic Acid (C4H6O4) as ligand. The synthesis is carried out through hydrothermal reaction method using water as solvent. This research measured Chromium-Succinate MOF’s porous properties, thermal stability, morphology, and chemical functionalities by performing various test such as adsorption/desorption of N2, thermogravimetric analysis (TGA), scanning electron microscope (SEM), and Fourier Transform Infrared Spectroscopy (FTIR) analysis. The results of this study show that this Bio-MOF based succinic acid (Cr-SA) has surface area of 233 m2/g with pore volume of 0.66 cm3/g. The porosity of Bio-MOF Cr-SA is comparable to other reported Bio-MOFs. Bio-MOF Cr-SA also has good thermal stability which can maintain its structure up to temperatures above 350oC. From the Bio-MOF properties that have been investigated, it is expected that it would be a preliminary study for the use of succinic acid bio-ligands in MOF for CO2 capture application.