Synthesis of graphene oxide from industrial waste

• Main Authors: Siaw, W. C., Tsuji, T., Abdul Manaf, N., Abdul Patah, M. F., Mohamed Jan, B.
• Format: Conference or Workshop Item
• Language: English
• Published: 2020
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://eprints.utm.my/id/eprint/89763/1/WCSiaw2020_SynthesisofGrapheneOxidefromIndustrialWaste.pdf; http://eprints.utm.my/id/eprint/89763/; http://dx.doi.org/10.1088/1757-899X/778/1/012050

This paper investigates a synthesis of graphene oxide (GO) from industrial waste via leaching and modified Hummers method. In leaching process, most of the impurities were effectively removed by dissolving into 6 M HCl at 70 °C for 210 mins to produce 92.28 % purity graphite residue. Subsequently, GO was synthesis via modified Hummers method with a combination of concentrated H2SO4 and KMnO4. The result from XRD and FTIR analyses confirmed that GO was successfully synthesized. Additionally, a monolayer and multilayer GO with wrinkles surface was observed by TEM which evident the existence of GO surface morphology.