Publication Type : Journal Article
Publisher : Micro Nano Letters
Source : Micro Nano Letters, vol. 15, no. 12, pp. 817-821, 2020.
Keywords : adsorption, chromium, chromium sorption, contact time, controlled functionalisation, direct compounding method, ethylene diamine modified graphene oxide, Fourier transform spectra, Graphene, Infrared spectra, intercalation compounds, mass 0.05 g, Monolayers, Nanocomposites, nanofabrication, one-pot synthesis approach, oxidation, pH, scanning electron microscopy, SEM-EDX techniques, Sorption, thermal analysis, time 60.0 min, X-ray chemical analysis, X-Ray Diffraction
Campus : Coimbatore
School : School of Engineering
Department : Sciences, Chemical
Year : 2020
Abstract : Introduction of ethylene diamine into the layers of graphene oxide was achieved through direct compounding method. Graphene oxide intercalated with ethylene diamine was characterised by Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermo gravimetric analysis (TGA) and scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX) techniques. The efficiency of the material in adsorbing chromium was evaluated through batch scale studies by optimising parameters like pH, concentration and contact time. The material renders a monolayer adsorption capacity of 69.93 mg/g, at pH 1 within 60 min time period for a minimal dosage of 0.05 g. The ethylene diamine modified graphene oxide thus appeals to be a promising adsorbent for environmental applications.
Cite this Research Publication : G. Govindankutty, S. Hareendran, Dr. Asha Sathish, and Nithya K., “Controlled functionalisation of graphene oxide using ethylene diamine: a one-pot synthesis approach for chromium sorption”, Micro Nano Letters, vol. 15, no. 12, pp. 817-821, 2020.