ABSTRACT
Carbon is one of the most abundant elements in the earth’s crust, as well as the second most abundant element in the human body after oxygen. Another allotrope of carbon that has been widely studied for its potential application for semiconductor technologies is carbon thin films. Carbon compounds were prepared from biomass of coconut shell and sap by a thermal method. Coconut shells and coconut sap are the raw materials used in the synthesis of carbon-based materials. Elements presented in the obtained samples were examined using an X-ray fluorescence spectrometer. While pristine graphene is diamagnetic in nature, reduced graphene oxide (rGO) has been reported to exhibit varied magnetic properties, including superparamagnetic, paramagnetic, and even ferromagnetic at room temperature. rGO is a candidate for microwave absorber and high efficiency electromagnetic interference shielding because of its high specific surface areas and carrier mobilities, coupled with abundant defects and hydroxyl, epoxy, and carboxyl groups.
