Environmental Technology & Innovation,
Journal Year:
2024,
Volume and Issue:
35, P. 103739 - 103739
Published: July 3, 2024
The
accumulation
of
microplastics
(MPs)
in
the
environment
and
their
role
as
carriers
for
ionic
organic
pollutants
are
increasingly
attracting
attention.
This
study
evaluated
adsorption-desorption
characteristics
cationic
pollutant
on
virgin
UV-aged
non-degradable
polystyrene
(PS)
well
degradable
poly(butylene
succinate)
(PBS)
adipate-co-terephthalate)
(PBAT)
MPs.
results
showed
that
aging
treatment
made
surface
MPs
rougher
more
porous,
causing
adsorption
to
shift
from
monolayer
multilayer
adsorption.
Aging
increased
oxygen-containing
groups
MPs,
significantly
enhancing
H
bond
(HB)
donor
capabilities
aged
PBS
PBAT,
thereby
improving
by
than
10
times.
significant
increase
is
mainly
due
combined
effects
strong
HB
(including
ordinary
(OHB)
charge-assisted
(CAHB)),
electrostatic
interactions,
π-π
interactions.
Notably,
stronger
enabled
PBAT
achieve
efficient
stable
rhodamine
B
over
a
wide
pH
range,
with
desorption
hysteresis
(HI
>
1.80).
indicates
can
act
long-distance
transport.
total
simulated
animal
gastrointestinal
fluids
confirmed
greater
environmental
hazards
work
first
demonstrate
unique
donors,
primarily
adsorb
through
(CAHB
OHB),
which
helps
assess
fate
biodegradable
aquatic
systems.
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
284, P. 116864 - 116864
Published: Aug. 12, 2024
The
increasing
global
utilization
of
biodegradable
plastics
due
to
stringent
regulations
on
traditional
has
caused
a
significant
rise
in
microplastic
(MPs)
pollution
aquatic
ecosystems
from
products.
However,
the
environmental
behavior
MPs
remains
inadequately
elucidated.
This
study
explored
aging
processes
polylactic
acid
(PLA)
and
polystyrene
(PS)
under
heat-activated
potassium
persulfate
(K
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(5), P. 2851 - 2857
Published: Jan. 1, 2024
This
work
presents
an
innovative
method
to
manage
post-consumer
biodegradable
plastics
by
embedding
a
molecular
mimic
of
esterase
into
poly(butylene
terephthalate/adipate),
which
holds
the
potential
elevate
composting
efficiency
and
capacity.
Biodegradable
plastics
(BPs)
are
promoted
as
eco-friendly
alternatives
to
conventional
plastics.
However,
compared
microplastics
(MPs),
they
degrade
rapidly
into
biodegradable
(BMPs),
which
may
lead
a
more
significant
accumulation
of
BMPs
in
the
environment.
This
review
systematically
compares
and
MPs,
summarizes
current
knowledge
on
their
environmental
behaviors
impacts
ecosystems
human
health,
offers
recommendations
for
future
research.
detected
water,
sediments,
indoor
dust,
food,
marine
organisms,
samples.
Compared
prone
transformations,
such
photodegradation
biodegradation,
results
shorter
migration
distance
across
different
matrices.
Like
can
adsorb
pollutants
transport
them
enhancing
toxicity
health
risks
through
Trojan
horse
effect.
Studies
indicate
that
negatively
impact
terrestrial
aquatic
than
MPs
by
disrupting
nutrient
cycling
inhibiting
plant
animal
growth.
In
vivo
vitro
research
also
shows
BMP
degradation
products
increase
bioavailability,
exacerbating
neurotoxicity
overall
toxicity.
findings
BMPs'
effects
remain
inconsistent.
Further
evaluation
trade-offs
between
biodegradability
is
needed
address
these
uncertainties.
