International Journal of Environmental & Analytical Chemistry,
Год журнала:
2024,
Номер
unknown, С. 1 - 18
Опубликована: Авг. 8, 2024
A
nanocomposite
adsorbent
of
cross-linked
chitosan-adipic/zirconia
nanoparticles
(CHI-ADI/ZNPs)
was
successfully
formed
through
the
modifying
a
naturally
occurring
polymer
(CHI)
with
nanoscale
material
(zirconia,
ZrO2),
which
subsequently
subjected
to
an
ionic
cross-linking
technique
facilitated
by
adipic
(ADI).
The
physicochemical
properties
this
innovative
have
been
thoroughly
investigated
utilising
variety
techniques,
such
as
CHN,
XRD,
FTIR,
FESEM-EDX,
and
BET.
Using
response
surface
methodology,
capacity
CHI-ADI/ZNPs
remove
organic
dye
(Eosin
Y,
EY)
from
aqueous
system
investigated,
adsorption-influencing
parameters
including
dosage
(0.02–0.08
g),
removal
time
(10–90
min),
pH
solution
(4–10).
Langmuir
Temkin
isotherm,
equilibrium
behaviour
EY
determined
is
well
illustrated.
adsorption
kinetics
data
were
aptly
characterised
model
pseudo-first-order.
At
199.84
mg/g,
exhibit
remarkably
capacity.
efficient
onto
likely
assigned
H-bond
interactions,
n-π
stacking,
positively
charged
anions.
findings
research
illustrate
exceptional
capabilities
in
context
eliminating
synthetic
anionic
dyes
wastewater.
Abstract
In
the
present
study,
synthesized
graphene
oxide
and
oxide‐montmorillonite‐chitosan
(GO‐Mt‐Chitosan)
composites
were
employed
for
removal
of
two
commonly
used
textile
dyes:
acid
orange
10
(AO10)
malachite
green
oxalate
(MG
oxalate).
The
structural
characteristics
adsorbent
analyzed
using
X‐ray
diffraction,
Fourier
transform
infrared
spectroscopy,
field
emission
scanning
electron
microscopy.
Various
key
parameters
such
as
pH,
contact
time,
initial
dye
concentration,
temperature,
dose
explored
to
optimize
adsorption
process.
composite
demonstrated
that
maximum
capacity
GO
was
345
mg/g
MG
32
AO10
dye,
whereas
in
case
GO‐Mt‐Chitosan,
it
945
81
dye.
process
followed
Langmuir
isotherm
model
pseudo‐second‐order
kinetic
model,
indicating
favorable
chemical
interactions
monolayer
dyes
onto
GO‐Mt‐Chitosan
composite.
thermodynamic
studies
confirmed
exothermic
spontaneous
nature
These
results
is
a
promising
material
efficiently
removing
from
contaminated
water
bodies,
offering
both
sustainable
reusability
economic
viability
wastewater
treatment
applications.
