Abstract
Study is aimed to develop carbon nanomaterials based adsorbents for effective removal of heavy metal ions such as arsenic (As(III)) from contaminant water. The synthesized adsorbents [viz graphene oxide (GO), chitosan nanoparticles (Ch) film, graphene oxide/chitosan nanoparticles (GO/Ch) film and graphene oxide-carbon nanotubes/chitosan nanoparticles (GO-CNTs/Ch) film] were characterized using Scanning electron microscopy (SEM), Transmission electron microscopy (TEM) and Fourier transmission infrared (FT-IR). Adsorption experiments were designed to study adsorption of As(III) by varied nanomaterials. Maximum adsorption capacities were observed to be 30.30 mg/g, 25 mg/g, 23.81 mg/g and 11.63 mg/g for GO, Ch film, GO/Ch film and GO-CNTs/Ch film respectively to adsorb As(III) ion from aqueous solution at optimum physical conditions (i.e., pH = 6, contact time = 20 minutes and temperature = 30 °C). GO shows high adsorption capacity for adsorption of As(III) ions as compared to the other adsorbents. But other adsorbents such as GO/Ch film and GO-CNTs/Ch film show great potential in the field of water decontamination due to their ability to be used in the form of thin film membranes/filter papers. Thermodynamical parameters obtained from adsorption data have shown adsorption processes to be spontaneous and exothermic.
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
