Environmental Quality Management,
Journal Year:
2024,
Volume and Issue:
34(2)
Published: Nov. 8, 2024
ABSTRACT
Microplastics
and
metals
represent
widespread
contaminants
which
can
cause
significant
damage
to
aquatic
ecosystems
organisms.
However,
the
complex
interactions
between
microplastics
various
in
water
environments
remains
be
understood.
This
study
aims
investigate
interaction
dynamics
lead(II)
ions
polyethylene
freshwater
environments.
Adsorption
trials
were
conducted
systematically
by
adjusting
operational
parameters
such
as
initial
Pb(II)
concentration,
equilibrium
pH
value,
residence
times.
An
in‐depth
characterization
using
scanning
electron
microscopy
(SEM),
x‐ray
diffraction
Fourier
transform
infrared
(FTIR)
analysis
was
explain
adsorption
mechanism
of
(PEM).
The
data
indicated
porous
surface
PEM,
highlighting
presence
diverse
functional
groups.
According
Langmuir
model,
PEM
exhibited
maximum
uptake
3.69
mg/g
at
4.5.
pseudo‐first‐order
model
demonstrated
superior
fitting
Pb(II)‐PEM
kinetics.
Desorption
performed
assess
release
from
Pb(II)‐bounded
chemical
agents.
It
observed
that
0.01
M
HNO₃
desorbed
optimally,
achieving
a
desorption
efficiency
exceeding
99.9%.
Consequently,
provided
evidence
may
acidic
environments,
facilitating
transfer
digestive
tracts
Molecules,
Journal Year:
2025,
Volume and Issue:
30(5), P. 1084 - 1084
Published: Feb. 27, 2025
To
solve
the
problems
of
water
and
air
pollution,
adsorption
functional
materials
(ASFMs)
have
been
extensively
investigated
applied.
Among
preparation
methods
ASFM,
electron
beam
radiation
(EBR)
has
attracted
much
attention
for
its
high
efficiency,
environmental
friendliness,
wide
applicability.
Based
on
introduction
application
EBR
technology,
ASFM
is
summarized
by
grafting
cross-linking.
Secondly,
corresponding
metal
ions,
inorganic
anions,
dyes,
drugs
chemical
raw
materials,
carbon
dioxide
systematically.
Then,
mechanisms
are
illustrated,
according
to
different
pollutants.
Finally,
progress,
issues,
prospects
technology
discussed.
Separations,
Journal Year:
2025,
Volume and Issue:
12(4), P. 82 - 82
Published: March 30, 2025
Since
the
mid-20th
century,
quantity
of
microplastics
(MPs)
has
increased
significantly,
becoming
a
persistent
environmental
pollutant
widely
distributed
in
global
water
bodies,
soils,
and
atmosphere.
While
plastic
materials
have
brought
significant
convenience
to
daily
life,
MPs
resulting
from
their
degradation
pose
increasing
threats
ecosystems
human
health.
This
comprehensive
review
examines
sources,
migration
pathways,
ecological
impacts
MPs,
critically
evaluates
current
separation
techniques
physical,
chemical,
biological
perspectives.
In
particular,
numerical
simulations
hydrocyclone
technique
reveal
its
unique
flow
characteristics,
including
turbulent
velocity
gradients
axial
pressure
differences,
with
efficiency
up
93%.
offers
advantages
such
as
high
efficiency,
low
energy
consumption,
friendliness.
response
growing
microplastic
pollution
issue,
this
emphasizes
that
development
future
should
prioritize
sustainability,
compatibility.
Continued
research
field
will
provide
theoretical
support
for
optimizing
control
technologies
contribute
achieving
protection
sustainable
goals.
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
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.
