Graphene Oxide from Recycle Carbon of Waste Tyre Using Modified Hummer’s Method

Abstract

There are several methods to produce Graphene oxide from carbon or the oxidation of graphite such as Staudenmaier’s method, Hoffman’s method, Tour’s method and Hummer’s method. But most of the method has some limitation in term of time production, complicated, toxic and risk of self-ignition or explosion. Hummers method has been popular and great choice to synthesis graphene oxide. Commonly, graphene was produced from graphite powder using chemical vapour deposition (CVD) or Hummer’s method, but the cost of graphite is a bit high. Waste tyres in Malaysia are neither categorized as solid waste or hazardous waste. It consist of many element like carbon, wire and also polymer. Waste carbon tyre was used as a carbon source for synthesis graphene oxide in this study. Graphene oxide is widely used in many applications and give a lot of advantages for semiconductors industry. In this study, graphene oxide was synthesized from recycle carbon of waste tyre using modified Hummer’s method. The morphology and structural properties of the graphene oxide were investigated using Raman spectroscopy, scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). Raman analysis was confirmed that graphene oxide was successfully synthesized from waste carbon tyre. It was confirmed the peaks shows that D band and G band was at 1361 and 1596 cm−1 with the intensity ratio of the D band relative to the G band (ID/IG) is 0.88. The formation of few sheets of grapheme oxide that stalked together on the surface of the sample structure, bumping pieces and coarse surface was confirmed by scanning electron microscopy (SEM). The elemental composition of carbon (C) is 50.90% and oxygen (O) is 49.10% which showed a good composition for graphene oxide. All the results were confirmed that the graphene oxide successfully synthesized from recycle carbon from waste tyre using modified Hummer’s.