SYNTHESIS OF RGO–ZnO COMPOSITES FOR THERMAL, ELECTRICAL AND ANTIBACTERIAL STUDIES

Abstract

Materials composed of single or a few pure/modified graphitic layers can be easily synthesized using chemical methods. In the present work, nanocomposites of reduced graphene oxide (RGO) with zinc oxide (ZnO) have been prepared via in situ reduction of graphite oxide (GO). X-ray diffraction spectra (XRD) confirmed the coexistence of RGO and ZnO crystal planes. The XRD results were complimented by Fourier Transform Infrared Spectroscopy (FTIR) and Raman spectroscopy. Incorporation of ZnO phase into the graphitic layers has been identified with the help of scanning electron microscopy (SEM). Incorporation of ZnO into graphitic layers has enhanced the thermal and optical characteristics of RGO but turned out with the reduced electrical conductivity. These nanocomposites illustrated fascinating antimicrobial activities against human pathogens E. coli and S. aureus.

Fe-doped nano-cobalt oxide green catalysts for sulfoxidation and photo degradation

“…The shift in the Co-O bond vibration frequency is due to the change in the microstructured features by the doping of the iron or nickel into the Co-O lattice. This decrease is per Hook's law, a rming the inverse relation of vibration frequency with reduced mass(Thakur et al 2017(Thakur et al , 2022a. HRTEM images of the bare and doped cobalt oxide NPs are represented in gure 3.…”