Abstract
This research focuses on the production and characterization of graphene oxide via Modified Hummers' method, with a specific emphasis on controlling oxidizing agent concentration. The study employed various analytical techniques to investigate structural and chemical properties. X-ray diffraction (XRD) revealed significant changes in interplanar spacing (8.3 Å to 14.6 Å), implying structural transformations. Raman spectroscopy inspected defects and layer formation. Field Emission Scanning Electron Microscope (FESEM) depicted structural evolution from multilayer lamellar structures to crumpled nanosheets as oxygen concentration varied. FTIR confirms the increase in intensity of notable oxygen containing functional groups, such as hydroxyl, epoxy and carbonyl groups. UV-VIS spectroscopy in conjunction with Tauc's plot shows an increase in bandgap energy (3.37 eV–3.70 eV), MATLAB modelling provides electronic properties of the material.
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