Synthesis of ultra-thin graphene oxide/ reduced graphene oxide nanocomposites and examine their properties

Abstract

Graphene oxide and reduced graphene oxide become center of attraction of researchers for last two decades due to its structural and morphological properties which contribute a unique ability to it. By the incorporation of graphene oxide (GO) or reduced graphene oxide (r-GO) into the polymer matrix makes extraordinary change in its general properties to extraordinary properties. The production of GO and r-GO in large scale with cost effecting way is still become challenge. This present work describes the preparation and characterization of GO incorporated Poly vinyl alcohol (PVA) nanocomposite and r-GO incorporated PVA nanocomposite. By following the modified Hummers reaction technique GO and r-GO. Which is cost effective and easier way GO and r-GO of production. The structural properties of GO and r-GO were examined via UV–vis, FTIR, XRD and SEM. The spectral outcomes of FTIR analysis showed the presence of functional groups in GO and r-GO. The comparative study of GO/r-GO of UV spectra is suggesting for π-π* transition on different wavelength. Various SEM images implied for the formation of ultrathin and homogeneously dispersed PVA supported graphene oxide and reduced graphene oxide nanocomposites. The r-GO is obtained by thermal reduction of GO causing a significant decrease in the amount of oxygen containing groups by which r-GO leads the higher specific surface area with less interlayer separation compared to GO.