Dynamics separation using Carbon Composite Metal Organic Framework (CCMs) Adsorbent

• Main Author: Che Mohd Asri, Che Muhammad Aiman Syazwan
• Format: Final Year Project
• Language: English
• Published: IRC 2015
• Subjects: TP Chemical technology
• Online Access: http://utpedia.utp.edu.my/16469/1/FinalReport_Che%20Muhammad%20Aiman_15597.pdf; http://utpedia.utp.edu.my/16469/

Currently, CO2 capture is a topical issue in environmental preservation and sustainable growth in development. This review highlights the recent studies on synthesis and characterization in metal organic framework (Ni-MOF-74) for CO2 capture and also the recent advances in the development of Graphene Oxide functionalized Ni-MOF-74 for CO2 capture. In this study, CO2 adsorption on Nickel- MOF-74 and Nickel-MOF-74-GO were investigated and compared. Fitting in as fascinating class of nano-porous materials, MOFs have been considered potential candidates for CO2 capture due to its capability of adsorption. However, water stability is often considered a big weakness of all kinds of metal-organic framework structures available for now. As such, Ni-MOF-74 does not exhibit such degradation which has a characteristic of strong coordination bond strength and remarkable as one of the highest CO2 uptake capacity among MOFs. Here, Ni-MOF-74 was synthesized by using nickel (II) nitrate, Ni(NO3)2·6H2O and 2,5-dihydroxyterephthalte acid in the presence of dimethylformamide (DMF) , ethanol and deionized water under conventional hydrothermal method. Thereafter, Ni-MOF-74 was grafted with graphene oxide (GO). MOF provided a high porosity and reactive centers and GO a dense array of carbon atoms to increase dispersive interactions. The resulting materials showed a significant enhancement in porosity owing to the formation of pores at the interface of GO and MOF crystals. GO oxygen groups were identified as nucleation sites for the formation of the MOF crystals. Characterization techniques applied are Fourier transform infrared (FTIR), thermogravimetry analysis (TGA), field emission scanning electron microscope (FESEM), transmission electron microscope (TEM), and the performance of CO2 adsorption on both MOFs is studied using BET method.