Year: 2024
Type: article
Abstract: Since graphene is expensive and relatively difficult to produce, significant efforts have been made to develop effective and inexpensive methods for creating and utilizing graphene [1], derivatives, or related materials. Graphene oxide (GO) is one such material. It consists of a single layer of atoms produced through the strong oxidation of cheap and abundant graphite. GO is an oxidized form of graphene containing oxygen-functional groups. Due to its ability to disperse in water and other solvents, GO is easy to process and can even serve as a precursor for graphene production. Although GO is not a good conductor, various processes can enhance its properties. GO is typically synthesized as a powder, in dispersion, or substrate coating. There are four primary methods for synthesizing GO: Staudenmaier, Hofmann, Brodie, and Hummers, with many variations available and ongoing improvements aimed at achieving better results and more cost-effective processes. The efficiency of the oxidation process is typically evaluated by the carbon-to-oxygen ratio of GO. In this study, graphene oxide was synthesized from graphite using a modified Hummers method. In this modification, an ice bath and sodium nitrate (NaNO3) were omitted, and the synthesis was conducted at room temperature. FT-IR, RAMAN, XRD, SEM, and EDS analyses were performed for characterization, yielding results consistent with findings reported in the literature.
Source: DergiPark (Istanbul University)
Institution: Istanbul University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4405738955