(380f) Effect of Temperature on the Structural Parameter of Graphene Oxide
AIChE Annual Meeting
2019
2019 AIChE Annual Meeting
Particle Technology Forum
Poster Session: Particle Technology Forum
Tuesday, November 12, 2019 - 3:30pm to 5:00pm
Graphene
oxide (GO) is an atomic sheet of graphite
decorated by several oxygenated functional groups on its basal planes and at
its edges such as hydroxyl, epoxy group and carbonyl groups. It has a
high aspect ratio (>1000), easy surface functionalization, and high thermal
and mechanical properties. GO is a functional
derivative of graphene, is generated directly via oxidation of graphite.
The most common description of GO involves the coexistence of sp2
carbon islands and sp3 carbon regions featuring oxygen containing
functionalities. In
the present work, GO nanosheets has been prepared
from graphite powder using a modified Hummer’s methodat various
temperatures between 30°C to 110°C. The structure and
morphological aspects of synthesized nanosheets are
characterized using Raman
spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy
(FTIR), electron microscopic (FESEM /TEM).High-magnification TEM micrograph represent the layer morphology of graphene oxide .The
D band (at 1371 cm−1) and G band (at 1590 cm−1)
peck intensity gradually decreases with increase in
synthesis temperature and it completely disappear at 110°C. It suggests that with increasing the synthesis
temperature the GO become completely amorphous in nature.
oxide (GO) is an atomic sheet of graphite
decorated by several oxygenated functional groups on its basal planes and at
its edges such as hydroxyl, epoxy group and carbonyl groups. It has a
high aspect ratio (>1000), easy surface functionalization, and high thermal
and mechanical properties. GO is a functional
derivative of graphene, is generated directly via oxidation of graphite.
The most common description of GO involves the coexistence of sp2
carbon islands and sp3 carbon regions featuring oxygen containing
functionalities. In
the present work, GO nanosheets has been prepared
from graphite powder using a modified Hummer’s methodat various
temperatures between 30°C to 110°C. The structure and
morphological aspects of synthesized nanosheets are
characterized using Raman
spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy
(FTIR), electron microscopic (FESEM /TEM).High-magnification TEM micrograph represent the layer morphology of graphene oxide .The
D band (at 1371 cm−1) and G band (at 1590 cm−1)
peck intensity gradually decreases with increase in
synthesis temperature and it completely disappear at 110°C. It suggests that with increasing the synthesis
temperature the GO become completely amorphous in nature.