Investigation on nanographene generation and its molecule adsorption

Abstract

An experimental method was applied to prepare nanographene, in which its surface feature was analyzed using scanning electron microscope and Fourier infrared ray analyzer. A methylene blue (MB) solution was adopted to measure the molecule adsorption of nanographene and graphite and demonstrated that nanographene had more molecule adsorption than that by graphite. As the concentration of MB solution increased, the molecule adsorption of nanographene ascended. As the stirring time of a magnetic stirrer decreased, the molecule adsorption of nanographene in the MB solution increased significantly. Meanwhile, the increment in the absorption amount of graphite reduced. As the dosage of nanographene and graphite increased, the absorption capacity of nanographene reached a peak value of 40 mg, which was two- or threefold higher than that of graphite. Hence, nanographene has higher molecule adsorption capacity than graphite.