Open AccessEffect of exfoliation method on graphite oxide. A comparison between exfoliation by ball milling and sonication in different media
Author(s) -
Francy Mayoli Casallas Caicedo,
Enrique Vera López,
Arvind Agarwal,
Vadym Drozd,
A. Durigin,
Chunlei Wang
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1386/1/012016
Subject(s) - graphene , exfoliation joint , materials science , raman spectroscopy , graphite , graphene oxide paper , oxide , sonication , scanning electron microscope , fourier transform infrared spectroscopy , chemical engineering , graphite oxide , ball mill , composite material , nanotechnology , metallurgy , optics , physics , engineering
Graphene oxide and reduced graphene have been exfoliated from graphite oxide synthesized by Hummer’s method. In order to establish a comparison, the exfoliation process was performed using two different methods, high energy ball milling and sonication. Each one was studied in two different media, organic solvent N-methyl 2 pyrrolidone and deionized water, obtaining four different products. The quality of the graphene and graphene oxides was studied using Raman spectroscopy. Structural characterization was performed using X-ray diffraction technique. The presence of oxygen-containing functional groups was determined by Fourier transform infrared spectra, while the morphology was investigated by scanning electron microscopy and energy-dispersive spectroscopy. The aim of this work is present a process to obtain graphene and graphene oxide of high quality at lower cost and better environmental conditions.