Studi Pembuatan Grafena Nano Sheet (GNS) dari Tempurung Kelapa yang direndam dalam Minyak Tanah

Abstract

Research has been done on the manufacture of graphene nano sheet (GNS) from coconut shell that soaked in kerosine. Coconut shell are converted to graphene through the carbonization process. Graphene is a carbon in the form of a thin flat sheet where each carbon atom has a sp2 bonds with a 2D structure and tightly picked in a crystal lattice like a honey bomb. The purpose of this study was to determine the effect of kerosene on the resulting graphene. The method used is an experimental method on a laboratory scale. The process of making graphene in this study is that coconuts are soaked in kerosene for two weeks. Furthermore, the coconut shell and fruit are separated and then the coconut shell is burned in a flame which will produce graphene. The resulting graphene was characterized by XRD, BET, TEM and Electrical Conductivity Test. The results of characterization by XRD test showed that the peaks were not sharp and widened at 2ϴ = 24.16°. The result of TEM analysis show that the graphene surface is porous and uneven and there are piles so that graphene is not single layer. The results of BET analysis show that the surface area of graphene 46.6753 m2/g with a pore volume 0.0332 cc/g and an average pore size 1.4268 nm. The results of the electrical conductivity test show that graphene has an increased electrical conductivity from voltage of 5-30 V.