Graphene based materials for carbon capture

dc.contributor.advisorTitinchi, Salam
dc.contributor.advisorAbbo, Hanna
dc.contributor.authorKelly, Gabrielle Enid
dc.date.accessioned2020-04-03T10:53:16Z
dc.date.accessioned2024-05-09T10:51:57Z
dc.date.available2020-04-03T10:53:16Z
dc.date.available2024-05-09T10:51:57Z
dc.date.issued2020
dc.description>Magister Scientiae - MScen_US
dc.description.abstractThe adverse effects of CO2 and greenhouse gas emissions into the atmosphere is believed to be one of the causes of climate change. The seriousness of global warming is encouraging the development of technologies designed to reduce CO2 emissions. Adsorption in the broadest context can be considered to be a promising method to address this due to the energy saving potential and regenerability, compared to other techniques. In this study, graphite was first oxidized to graphene oxide (GO) with concentrated acid. This was followed by formation of the aminosilanes viz. 3- aminopropyl-triethoxysilane (APTES), tris(2-aminoethyl)amine (TRIS) and guanidine being functionalized onto the surface of graphene oxide (GO). A second series involving the ordered mesoporous materials (OMS) was prepared employing cetyltrimethylammonium bromide (CTAB) and P123 triblock copolymer, as the structure directing agents for the organization of polymerizing silica species. Following the self-assembly of OMS onto GO, the so formed GO-OMS compound was modified with polyethylenimine (PEI). Several characterization techniques such as X-ray powder diffraction (XRD), Fourier Transform Infra-Red (FT-IR) spectroscopy, high resolution scanning microscopy (HRSEM), high resolution transmission electron microscopy (HRTEM) and N2 physisoprion employing the Brunauer-Emmett-Teller (BET) analysis to determine specific surface areas of porous solid materials were employed to study the structural, morphological and textural properties of the adsorbents.en_US
dc.identifier.urihttps://hdl.handle.net/10566/14640
dc.language.isoenen_US
dc.publisherUniversity of Western Capeen_US
dc.rights.holderUniversity of Western Capeen_US
dc.subjectGraphene oxideen_US
dc.subjectAPTES (amino propyl triethoxy silaneen_US
dc.subjectTRIS (2-aminoethyl) amineen_US
dc.subjectGuanidineen_US
dc.subjectOrdered mesoporous silicaen_US
dc.subjectPolyethylenimineen_US
dc.titleGraphene based materials for carbon captureen_US

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