Enhancement of Pb(II) Adsorption by Aged Microplastics in the Presence of Microalgae: Kinetic and Mechanistic
Abstract
This
study
investigated
the
effects
of
different
aging
treatments
(UV
light,
potassium
permanganate,
and
sodium
hydroxide
treatments)
on
adsorption
lead
(Pb(II))
by
PET
microplastics,
as
well
impact
Microcystis
aeruginosa
microplastics.
The
results
indicated
that
significantly
affected
capacity
which
could
be
attributed
to
increased
functional
groups
surface
porosity
during
process.
Kinetic
analysis
revealed
Pb(II)
follows
a
pseudo-second-order
model,
suggested
process
is
mainly
controlled
chemical
adsorption.
Intraparticle
diffusion
further
elucidated
migration
mechanism
within
On
other
hand,
presence
enhanced
As
concentration
microalgae
increases,
promoting
effect
microplastics
gradually
strengthens,
with
extracellular
polymeric
substances
(EPS)
secreted
playing
key
role
in
facilitating
These
findings
strengthen
carriers
heavy
metal
aggravate
risk
pollution
aquatic
ecological
environment.
Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown
Published: April 1, 2025
Language: Английский