Our goal is to synthesize graphene oxide (GO) utilizing biomass graphite through a modified Hummers method. However, we get rGO straight away. How is rGO produced in the absence of a reducing agent or a prolonged heat treatment? Would you please tell me the reason?
Princeya Mary yes it is possible to obtain reduced graphene oxide by utilizing the Modified Hummer method.
To obtain pure GO from the modified Hummers method, it is important to control the reaction parameters, such as the amount and ratio of the reagents, the reaction time and temperature, the pH of the solution, washing and purification steps.
- Kaur, M., Kaur, H., & Kukkar, D. (2018, May). Synthesis and characterization of graphene oxide using modified Hummer’s method. In AIP conference proceedings (Vol. 1953, No. 1). AIP Publishing.
- Ciptasari, N. I., Darsono, N., Handayani, M., & Soedarsono, J. W. (2021, August). Synthesis of graphite oxide using hummers method: Oxidation time influence. In AIP Conference Proceedings (Vol. 2382, No. 1). AIP Publishing.
Dear Princeya Mary, the GO reducing occurs due to the oxygen functional groups decreasing during thermal treatment or by reducing agents. However, the GO acquisition may also be successfully obtain by electrochemical exfoliation using saline electrolytes. I have already published a work about this method and compared to the GO made up by Hummer.
"Physicochemical characterization of a low-oxygen composite based on chitosan and electrochemically exfoliated graphene":
https://www.sciencedirect.com/science/article/pii/S0254058423007575
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