Synthesis of graphene oxide from industrial waste. Issue 1 (April 2020)

• Record Type: Journal Article
• Authors: Siaw, W C; Tsuji, T; Abdul Manaf, N; Abdul Patah, M F; Mohamed Jan, B
• Is Part Of: IOP conference series. Volume 778:Issue 1(2020)
• Publication Date: 2020-04
• Subjects: Industrial waste -- leaching -- modified Hummers method -- graphene oxide; Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/778/1/012050
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: 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 H2 SO4 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.