Light
is
the
primary
factor
affecting
plastic
aging.However,
research
on
differences
in
photoaging
process
according
to
polymer
structure
of
has
not
yet
been
presented,
and
release
metal
additives
from
different
structures
polymers
sufficiently
comprehensive.
In
this
paper,
two
typical
plastics
made
aliphatic
aromatic
were
selected
as
objects.
A
UV
aging
testing
machine
simulating
a
natural
environment
was
used
study
characteristics
with
using
irradiation
explore
changes
molecular
physical
chemical
properties
plastics,
time
additives.The
results
showed
that
during
process,
new
functional
groups
(carbonyl
hydroxyl
groups)
formed
peaks
appeared
for
polymers,
but
no
polymers.
The
degradation
degrees
types
structural
differed
under
irradiation,
photodegradation
degree
higher
than
Thirteen
metals
detected
all
original
continuous
occurred
prolonged
photoaging.
Fe,
Cu,
Cd
Pb
steady
increasing
trend.
amount
released
directly
related
structure,
its
degradation;
is,
faster
rate
ion
plastic.
kinetics
conform
second-order
kinetic
model,
mechanism
whole
determined
by
surface
diffusion
intraparticle
rates.
will
help
control
treat
pollution
perspective
improve
understanding
evaluation
environmental
additives.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(26), P. 17228 - 17239
Published: June 15, 2024
Nanoplastics
(NPs)
represent
a
growing
concern
for
global
environmental
health,
particularly
in
marine
ecosystems
where
they
predominantly
accumulate.
The
impact
of
NPs
on
benthic
organisms,
such
as
bivalves,
raises
critical
questions
regarding
ecological
integrity
and
food
safety.
Traditional
methods
assessing
NP
toxicity
are
often
limited
by
their
time-intensive
nature
ethical
considerations.
Herein,
we
explore
the
toxicological
effects
bivalve
