Molecules,
Journal Year:
2025,
Volume and Issue:
30(11), P. 2408 - 2408
Published: May 30, 2025
CO2
capture
by
adsorption
on
proper
solid
materials
appears
to
be
a
promising
approach,
due
its
low
energy
requirements
and
ease
of
implementation.
This
study
aimed
prepare
efficient
for
based
composites
nanocarbon
reduced
graphene
oxide,
using
graphite,
L-ascorbic
acid,
glycine
as
precursors.
The
were
characterized
XRD,
low-temperature
N2
adsorption,
FTIR,
Raman,
XPS
spectroscopies,
along
with
SEM
TEM.
capacities,
heats
selectivity
determined.
A
hierarchical
porous
structure
was
found
NC-LAA,
NC/RGO-LAA,
NC/RGO-Gly.
At
273
K
100
kPa,
the
capacities
NC-LAA
NC-Gly
reached
2.6
mmol/g
2.5
mmol/g,
respectively,
while
composites,
1.7
NC/RGO-Gly
3.5
NC/RGO-LAA.
ability
glycine-derived
is
related
presence
nitrogen-containing
functional
groups.
NC-Gly,
reveal
chemisorption
CO2.
Except
chemisorption,
NC/RGO-LAA
material
shows
sustained
physical
up
higher
coverage.
best
CO2,
observed
connected
synergy
between
carbon
dots
RGO.
composition
ensures
both
sufficient
oxygen
surface
functionalization
structure.
