Volume 7 Issue 4 ( December 2020 )

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 350^oC. 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.

Keywords: Bio-MOFs; CO₂ uptakes; Adsorbent Characteristics; Adsorption; Succinic Acid