RSC Advances,
Год журнала:
2025,
Номер
15(3), С. 1989 - 2010
Опубликована: Янв. 1, 2025
The
ACP
adsorbent,
a
blend
of
activated
carbon
and
phosphoric
acid-based
geopolymer
foam,
showed
high
methylene
blue
adsorption
efficiency,
aligning
with
the
Langmuir
isotherm,
PSO
kinetics,
ANN-based
predictions.
Case Studies in Chemical and Environmental Engineering,
Год журнала:
2024,
Номер
10, С. 100878 - 100878
Опубликована: Авг. 3, 2024
This
study
presents
a
successful
synthesis
of
natural
magnetic
silica
(NMM@SiO2)
materials
modified
with
hydrophobic
groups
for
the
adsorption
two
antibiotics,
chloramphenicol
(CAP)
and
ciprofloxacin
(CIP).
The
NMM@SiO2
was
prepared
using
material
(NMM)
isolated
from
iron
sand,
extracted
quart
methyltrimethoxysilane
(MTMS)
as
precursor.
synthesized
were
characterized
various
analytical
techniques,
including
FTIR,
XRD,
VSM,
TGA,
TEM,
SEM-EDX-Mapping.
Subsequently,
used
to
adsorb
antibiotics
an
aqueous
solution
batch
system,
antibiotic
concentration
in
measured
UV-VIS
spectrophotometry.
characterization
results
confirmed
incorporation
MTMS
onto
NMM@SiO2.
studies
indicated
that
optimum
pH
CAP
CIP
5
6,
respectively,
contact
time
being
120
min
90
CIP,
initial
concentrations
200
mg
L−1.
(1.5
g)
0.4
g
(3.0
mmol)
obtain
NMM@SiO2/C1(3)
exhibit
highest
capacities
both
(58.46
g−1
106.81
CIP).
For
tested,
kinetics
isotherms
followed
pseudo-second-order
Freundlich
models,
respectively.
thermodynamic
negative
ΔH
(exothermic),
positive
ΔS
(increase
randomness),
ΔG
(spontaneous)
CIP.
These
highlight
performance
this
hydrophobic-based
adsorbent
demonstrate
its
potential
effective
aquatic
environments.
