Environmental Technology,
Год журнала:
2025,
Номер
unknown, С. 1 - 31
Опубликована: Фев. 22, 2025
Antibiotic
contamination
in
aquatic
environments
is
a
growing
concern,
posing
risks
to
public
health
and
ecosystems.
To
address
this
issue,
advanced
materials
like
graphene
oxide
(GO)
chitosan-based
hydrogels
are
being
extensively
explored
for
their
ability
effectively
remove
antibiotics
from
wastewater,
owing
distinct
characteristics
synergistic
benefits.
This
review
comprehensively
examines
the
synthesis,
characterization,
applications
of
GO/chitosan
addressing
antibiotic
pollution.
The
synthesis
methods,
including
solution
casting,
crosslinking,
situ
polymerization,
discussed
simplicity
scalability.
hydrogels'
key
properties,
such
as
porosity,
surface
area,
mechanical
strength,
essential
efficient
adsorption
capabilities.
Adsorption
mechanisms,
electrostatic
interactions,
π-π
stacking,
hydrogen
bonding,
functional
groups,
enable
these
achieve
high
capacities.
Notable
examples
include
rGO@ZIF-67@CS
hydrogels,
which
achieved
higher
capacities
1685.26
mg·g−1
tetracycline
at
pH
4
1890.32
norfloxacin
5,
while
sulfonated
CMC/GO-GCC
composite
hydrogel
312.28
sulfamethoxazole
298
K.
Moreover,
efficiencies
90.42%
with
GO–CTS
97.06%
were
using
AGO–CTS
diclofenac
adsorption.
also
highlights
practical
wastewater
treatment,
comparing
performance
other
adsorbents
challenges
scalability
regeneration.
Finally,
explores
future
research
directions
enhance
effectiveness
sustainability
emphasizing
potential
scalable,
eco-friendly
solutions
removal
water.
Abstract
Modification
serves
as
an
excellent
approach
to
enhancing
the
adsorption
performance
of
biochar
for
tetracycline.
Selective
modification
further
allows
attainment
materials
that
are
not
only
more
efficient
but
also
cost-effective.
However,
key
structural
factors
influencing
tetracycline
by
remain
unclear
at
present,
hindering
effective
guidance
strategies.
This
study
established
relationship
between
carbonization
degree
and
capacity,
constructed
a
standardized
microscopic
model
tetracycline,
explored
potential
reaction
mechanisms.
The
results
indicated
with
increases
in
carbonization,
capacity
increased
from
16.08
mg
L
−1
98.35
.
energy
exhibited
strong
correlation
aromatic
condensation
p
≤
0.01,
linear
(r
2
≥
0.94).
For
low
degrees,
was
primarily
driven
chemical
bonds
(69.21%)
complemented
electrostatic
interactions,
weak
van
der
Waals
forces
or
π-π
interactions.
high
synergistic
effects
hydrogen
bonding,
forces,
interactions
determined
on
(91.1%).
Additionally,
larger
carbon
clusters
resulted
stronger
stable
Furthermore,
carboxyl-functionalized
highly
carbonized
displayed
highest
−
1.8370
eV
through
suggests
structure
is
crucial
Graphical
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Фев. 24, 2024
Abstract
Hydrogel
from
corncob
cellulose
was
synthesized
in
this
investigation.
The
characterized
by
SEM,
XRD,
and
FTIR
instruments.
As
the
results
indicate
hydrogel
has
required
important
features,
these
suggest
suitability
of
for
adsorption
methylene
blue
dye
(MBD).
Three
process
variables
(dosage,
contact
time,
initial
concentration)
with
three
levels
were
studied
during
at
30
°C
neutral
pH.
efficiency
MBD
determined
each
experiment.
experimental
statistically
analyzed
interpreted.
maximum
removal
achieved
2.22
g/L
dosage,
80.36
min
74.54
mg/L
concentration.
At
condition,
98.25%
through
tests.
Kinetics,
isotherm,
thermodynamics
studies
performed.
Langmuir
isotherm
is
more
suitable
to
describe
Pseudo
second-order
kinetic
model
fits
process.
From
studies,
all
negative
values
change
Gibbs
free
energy
(ΔG°),
positive
value
enthalpy
(ΔH°),
entropy
(ΔS°)
that
carried
out
a
spontaneous
endothermic.
Moreover,
regeneration
experiment
adsorbent
treatment
real
textile
industry
waste
water
conducted
64.76%.
This
percentage
reduction
sythetic
aqueous
solution
due
involvement
other
pollutants
water.
up
third
cycle
without
significant
loss
efficiency.
