Open AccessControlled functionalisation of graphene oxide using ethylene diamine: a one‐pot synthesis approach for chromium sorption
Author(s) -
Govindankutty Gopika,
Hareendran Shreya,
Sathish Asha,
Kamaraj Nithya
Publication year - 2020
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2020.0158
Subject(s) - graphene , materials science , thermogravimetric analysis , oxide , adsorption , fourier transform infrared spectroscopy , chemical engineering , scanning electron microscope , diamine , ethylene oxide , sorption , monolayer , nuclear chemistry , inorganic chemistry , polymer chemistry , organic chemistry , chemistry , nanotechnology , polymer , composite material , metallurgy , copolymer , engineering
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.