Abstract
Graphene Oxide-Nickel Oxide (GO-NiO) nanocomposite was prepared by a simple combined hydrothermal method. The nanocomposites were characterized by Field-Emission Scanning Electron Microscopy (FESEM), X-Ray Powder Diffraction (XRD), Fourier Transfer Infrared (FT-IR) Spectroscopy, Transmission Electron Microscopy (TEM), Thermogravimetric (TGA) Analysis, and Energy Dispersive X-ray analysis (EDX). SEM and TEM analysis indicates the formation of flaky structured nanoparticles with sizes ranges from 100 to 200 nm. GO-NiO nanocomposite has exceptional adsorption capacity and very high adsorption rates towards removing Pb2+ and Cd2+ metal ions. Our work illustrates that the adsorption data were best fit for Langmuir adsorption isotherm among Freundlich and D–R isotherm providing a high adsorption capacity of 208.8 and 324.7 mgg−1 for Pb2+ and Cd2+ metal ions respectively. At the same time, the kinetics followed the pseudo-second-order model and other kinetic parameters like pseudo-first-order, Elovich and Intraparticular diffusions were also discussed. The influence of concentration and pH were studied. The GO-NiO nanomaterial, as formed, was examined for various Gram-positive and Gram-negative pathogenic bacteria.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
