Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Фев. 3, 2025
Abstract
Here,
porous
carbon
(PC)
and
ZnO
nanorods@PC
(ZnO-NR@PC)
composite
derived
from
orange
peel
(OP)
have
been
synthesized
via
a
simple
carbonization
process.
The
prepared
materials
characterized
by
XRD,
FT-IR,
TEM,
BET
analysis.
adsorptive
properties
of
the
PC
ZnO-NR@PC
investigated
toward
methylene
blue
(MB)
crystal
violet
(CV)
cationic
dyes
their
aqueous
solutions.
adsorption
studies
concluded
that
maximum
efficiency
was
achieved
after
90
min
in
basic
conditions
(pH
=
10).
Langmuir,
Freundlich,
Dubinin–Radushkevich
(D-R),
Temkin
non-linear
isotherm
models
were
applied
to
fit
experimental
data.
MB
CV
OP
is
fitted
with
Freundlich
model,
both
Langmuir
model.
estimated
capacity
74.45
74.89
mg/g,
respectively.
calculated
free
energy
D-R
indicates
MB,
dye
molecules
OP,
PC,
may
be
physical.
kinetic
revealed
onto
pseudo-second-order
On
otherhand,
thermodynamic
confirmed
an
endothermic
spontaneous
Furthermore,
displayed
high
stability
overall
removal
about
90%
five
cycles.
mechanism
proposed
controlled
electrostatic
bonding,
π-π
interactions,
ion
exchange.
results
indicated
potential
ability
OP-derived
carbons
as
adsorbents
for
media.
