Adsortion Performance of Graphene Nano Particle to Remove Volatile Organic Compounds in Environment

In this study, graphene nano particles were synthesized chemically - modified Hummer method and used as the adsorbent to remove toluene and benzene in environment. Obtained nano adsorbents were characterized using Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Fourier transform infrared resonance spectroscopy (FTIR), Brunauer-Emmett-Teller analysis (BET), X-ray diffraction (XRD) and X ray photoelectron spectroscopy (XPS). The results showed that oxidation of graphite leading to the adding oxygen-contained functional groups on the surface of graphite and forming graphene oxide (GO). Ascorbic acid has been used to reduced GO forming reduced graphene oxide (rGO). Adsorption capacity of rGO for toluene and benzene was 180 mg/g and 150 mg/g, respectively. rGO could be regenerated at 50oC in N2 flushing. After regeneration, adsorbents could used in 4 times