Graphene oxide based regenerated carbon waste tyre (rCB): Synthesis by modified Hummers method and characterization

Abstract

Graphene oxide (GO) has attracted attention in the study of the creation novel material and mainly synthesized from exfoliation of graphite. However, the expensive market price of graphite lead to the high-cost production of GO beside the resource exhaustion due to rising demands from research and industry worsen the situation. Consequently, a cheaper and recycle alternative to graphite as possible raw material for producing GO is from carbon of waste tyre through modified Hummers method. The obtained GO was confirmed by using Raman spectroscopy, XRD, FTIR and FESEM. The Raman spectroscopy obtained for ID of ∼1375cm-1and IG of ∼1602cm-1with ID/IG ratio of 0.82 with 2D multi layers. The XRD spectroscopy showed the diffraction peak at (2θ = 25.39°) with interlayer spacing of 3.51 Å and FTIR spectra revealed the functional groups of hydroxyl (OH), carboxyl (COOH), alcohol (COH), and epoxy (CO) at 3392 cm-1, 1706 cm-1, 1615 cm-1, and 1108 cm-1 respectively that resembles the FTIR result of GO from graphite by previous study. FESEM pictures revealed that the surface morphology of the carbon black structure changed, resulting in an increase in the presence of pores on the GO structure. The establishment of GO from carbon waste tyre was successfully supported by all the above characterizations thus indicate that it can be suitable alternative of graphite for the synthesis of GO.