A rapid and easy approach for the reduction of graphene oxide by formamidinesulfinic acid

A rapid and easy approach for synthesizing chemically reduced graphene oxide (CRGO) by using formamidinesulfinic acid (FAS) as a reducing agent is reported. The obtained CRGO nanosheets were characterized with Fourier transform infrared spectroscopy, UV–Vis absorption spectroscopy , Raman spectroscopy , X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy , atomic force microscopy and electrical conductivity . The possible reduction mechanism was proposed. The stronger reduction capacity of FAS was attributed to the synergistic effect of its hydrolysis products ( HSO 3 - and urea) in alkaline aqueous media .