A facile green approach to prepare reduced Graphene Oxide

Abstract Herein, a simple and environment-friendly green approach has been used to prepare reduced graphene oxide (rGO) on a large scale using soya beans-drenched water. The prepared rGO has been characterized using x-ray diffraction (XRD) spectra, Field emission scanning electron microscope (FESEM), Transmission electron microscope (TEM), Fourier transforms infrared (FTIR) spectroscopy, UV–vis spectroscopy, Raman spectroscopy, and current–voltage (I-V) characteristics. The intensity ratio (I D /I G ) of GO and rGO are ∼ 1.02 and 1.2 which signifies a decrease in the average size of the sp 2 domain. From the Capacitance—Voltage (C-V) measurement, it observes that the capacitance of prepared rGO is higher than GO at a particular frequency at room temperature which indicates that charges of rGO have more ability at surface states to monitor the external AC signal. The corresponding result suggests that the obtained rGO can be used in an energy storage device. This work reports a new, green, and efficient reduction of graphene oxide (GO).