Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: March 11, 2025
In
this
study,
the
Fe2O3@SiO2-L-cysteine-cellulose
system
was
synthesized
and
characterized
through
XRD,
FT-IR,
EDS,
TGA-DTA
analyses.
This
system's
adsorption
performance
evaluated
for
removing
heavy
metals
such
as
Cr,
Cd,
Ni,
Pb
from
synthetic
wastewater.
The
magnetic
core
demonstrated
a
beneficial
effect
on
enhancing
metal
capacity
of
polymer,
while
properties
facilitated
recyclability
adsorbent.
Cr(VI),
Cd(II),
Ni(II),
Pb(II)
ions
explored
under
varying
conditions
pH,
temperature,
ion
concentration,
adsorbent
dosage.
Maximum
capacities
were
recorded
at
423.56
mg/g,
426.32
422.21
respectively,
optimal
pH
6.5,
concentration
600
mg/L,
an
dose
0.07
g,
room
temperature.
Additionally,
material
water,
N2,
CO2
assessed.
exhibited
excellent
removal
efficiency
Cr(VI)
(˃98%)
initial
90
mg/L
using
g
combination
Fe2O3@SiO2,
L-cysteine,
cellulose
in
one
performs
distinct
advantages
enhanced
surface
area
adsorbent,
preventing
degradation
harsh
conditions,
separation
reusability
ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(4)
Published: Jan. 24, 2024
Abstract
In
this
work,
the
magnetic
cellulose
acetate
butyrate
beads
(mCABs)
were
prepared
and
then,
their
surfaces
modified
with
[(3‐Aminopropyl)
triethoxysilane)]
(APTES)
solution
to
generate
amine
groups
(−NH
2
)
as
a
ligand
for
DNA
adsorption
in
aqueous
solution.
After
surface
modification,
−NH
functionalized
mCABs
(N−mCABs)
characterized
Fourier
Transform
Infrared
Spectroscopy
(FTIR),
scanning
electron
microscope
(SEM),
energy
dispersive
X‐ray
(EDX)
analysis.
The
optimum
pH
value
of
was
observed
at
4
point,
N−mCABs
adsorbed
4.27
mg/g
room
temperature
(RT).
maximum
amount
calculated
5.24
exothermic;
furthermore,
monolayer
Langmuir
model
more
fitted
than
Freunclich
isotherm
due
regression
coefficient
(R
),
qmax
values
model.
According
reusability
studies,
adsorbent
protected
its
stability
capacity
after
5
consecutive
adsorption,
desorption,
regeneration
cycles.