Adsorption of Macrolide Antibiotics by Aged Microplastics of Different Sizes: Mechanisms and Effects
Qi Li,
James S. Tan,
Haichao Sha
и другие.
Nanomaterials,
Год журнала:
2025,
Номер
15(6), С. 467 - 467
Опубликована: Март 19, 2025
Microplastics
(MPs)
and
antibiotics
are
widely
detected
in
water
bodies.
However,
the
adsorption
behavior
mechanism
of
different
particle
size
polystyrene
(PS)
MPs
on
macrolide
under
natural
aging
remain
to
be
elucidated.
In
this
study,
potassium
persulfate
(K2S2O8)
was
used
simulate
process
PS
MPs.
The
(80
400
μm)
toward
azithromycin
(AZI),
clarithromycin
(CLA),
erythromycin
(ERY)
were
investigated.
Results
SEM
showed
that
surface
roughness
aged
increased
with
appearance
cracks,
pits,
pores.
XPS
FTIR
analyses
enhanced
C=O
functional
groups
process.
isotherm
models
revealed
processes
AZI,
CLA,
ERY
tendency,
as
evidenced
by
highest
capacity
for
aged-80
μm
(645,
665,
184
mg/kg)
>
original-80
(412,
420,
120
mg/kg),
aged-400
(280,
330,
110
original-400
(197,
308,
100
mg/kg).
Kinetic
model
fitting
occurred
three
stages:
rapid,
slow,
saturation.
Adsorption
kinetic
curves
original
conformed
pseudo-second-order
model.
contrast,
data
fit
Langmuir
model,
indicating
primarily
involved
uniform
monolayer
chemical
adsorption.
Our
findings
provide
insights
into
substantial
changes
interactions
between
processes.
Язык: Английский
Comparative Study on the Adsorption and Desorption Behaviors of Quinolone Pollutants on Polystyrene Microplastics of Different Particle Sizes
Environmental Technology & Innovation,
Год журнала:
2025,
Номер
unknown, С. 104216 - 104216
Опубликована: Апрель 1, 2025
Язык: Английский