The Science of The Total Environment,
Год журнала:
2024,
Номер
944, С. 173745 - 173745
Опубликована: Июнь 5, 2024
Microplastics
(MPs)
pose
significant
environmental
pollution
problems
owing
to
their
diverse
properties
such
as
various
shapes,
sizes,
compositions,
surface
features,
and
levels
of
degradation.
Moreover,
interactions
with
toxic
chemicals
aging
processes
add
complexity
research.
This
study
investigated
the
adsorption
triphenyl
phosphate
(TPhP)
in
soil-only,
MP-only,
soil-MP
simulated
environments
under
different
conditions.
The
experiment
involved
three
phases:
initial
exposure
a
pH
5.5
fluorescent
light,
subsequent
introduction
ultraviolet
(UV)
radiation,
adjustment
4.0
7.0,
while
maintaining
UV
exposure,
each
lasting
7
days.
found
that
factors
affected
TPhP
sorption
capacity,
higher
observed
radiation
acidic
In
contrast,
MP-only
systems
showed
no
clear
trend
for
adsorption,
suggesting
kinetic
limitations.
When
MPs
were
added
soil,
dynamics
altered,
varying
capacities
MP
polymers
ATR-FTIR
spectroscopy,
micro-Raman
water
contact
angle
measurements
suggested
potential
photooxidation
changes
hydrophobicity
subjected
provides
valuable
insights
into
interplay
between
soil
properties,
characteristics,
determining
environments.
The Science of The Total Environment,
Год журнала:
2023,
Номер
893, С. 164807 - 164807
Опубликована: Июнь 13, 2023
Plastic
particles
can
impact
the
environmental
fate
and
bioavailability
of
essential
inorganic
micronutrients
non-essential
(toxic)
metals.
The
sorption
metals
to
plastic
has
been
demonstrated
be
facilitated
by
ageing,
a
phenomenon
encompassing
an
array
physical,
chemical,
biological
processes.
This
study
deploys
factorial
experiment
untangle
role
different
ageing
processes
in
determining
Plastics
made
three
polymer
types
were
aged
both
through
abiotic
(ultraviolet
irradiation,
UV)
biotic
(through
incubation
with
multispecies
algal
inoculum
forming
biofilm)
under
controlled
laboratory
conditions.
Pristine
samples
characterized
for
their
physiochemical
properties
Fourier-transformed
infrared
spectroscopy,
scanning
electron
microscopy
water
contact
angle
measurements.
Their
affinity
toward
aluminum
(Al)
copper
(Cu)
aqueous
solutions
was
then
assessed
as
response
variable.
All
(alone
or
combined)
influenced
surface
resulting
reduced
hydrophobicity,
changes
functional
groups
(i.e.,
increase
oxygen
containing
after
UV
appearance
marked
bands
amides
polysaccharides
biofouling),
well
nanomorphology.
Al
Cu
instead
statistically
dependent
(p
<
0.01)
on
degree
biofouling
covering
specimens.
Biofouled
displayed
fact
substantial
metal
causing
depletion
up
tenfold
compared
pristine
polymers,
regardless
type
presence
absence
other
treatments.
These
results
confirm
hypothesis
that
accumulation
is
substantially
driven
biofilm
present
plastics.
findings
also
highlight
importance
investigating
implications
nutrients
availability
environments
impacted
this
pollution.
Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Июнь 27, 2023
This
study
reports
on
plastiglomerate
and
other
new
forms
of
plastic
pollution
in
the
tropical
marine
continent
Indonesia.
Twenty-five
samples
were
collected
from
an
island
beach
Java
Sea
where
plastiglomerate,
plasticrusts,
pyroplastic
formed
by
uncontrolled
burning
waste.
The
most
common
types
polyethylene
polypropylene
(PE/PP),
as
shown
ATR-FTIR
spectroscopy.
However,
acrylates/polyurethane/varnish
(PU)
a
copolymer
styrene
acrylonitrile
found
well.
suggests
that
plastiglomerates
can
form
wider
variety
polymers
than
previously
reported.
FTIR
analysis
also
indicates
thermo-oxidative
weathering,
making
charred
more
brittle
susceptible
to
microplastic
formation.
A
subset
was
analyzed
for
associated
chemical
contaminants.
One
with
PU
matrix
showed
high
concentrations
phthalates.
All
had
polycyclic
aromatic
hydrocarbons
(PAHs),
likely
due
open
fires.
leads
change
physical
properties
plastics
contained
plastiglomerates.
Plastiglomerate
waste
similar
origin
are
therefore
often
weathered
contaminated
organic
pollutants
their
parent
polymers.
highest
PAH
concentration
plastitar
sample.
Plastitar
is
defined
agglomerate
tar
adheres
coastal
rocks.
In
contrast,
our
documents
mobile,
clastic
type.
could
pose
additional
ecological
risk
because
its
mobility.
These
be
important
vector
contamination
nearby
habitats
such
coral
reefs,
seagrass
meadows,
mangroves.
New Journal of Chemistry,
Год журнала:
2024,
Номер
48(6), С. 2594 - 2607
Опубликована: Янв. 1, 2024
Different
UV
wavelengths
were
used
to
simulate
aging.
The
adsorption/desorption
behavior
of
polylactic
acid
(PLA)
on
bisphenol
A
(BPA)
before
and
after
aging
was
studied.
The Science of The Total Environment,
Год журнала:
2024,
Номер
944, С. 173745 - 173745
Опубликована: Июнь 5, 2024
Microplastics
(MPs)
pose
significant
environmental
pollution
problems
owing
to
their
diverse
properties
such
as
various
shapes,
sizes,
compositions,
surface
features,
and
levels
of
degradation.
Moreover,
interactions
with
toxic
chemicals
aging
processes
add
complexity
research.
This
study
investigated
the
adsorption
triphenyl
phosphate
(TPhP)
in
soil-only,
MP-only,
soil-MP
simulated
environments
under
different
conditions.
The
experiment
involved
three
phases:
initial
exposure
a
pH
5.5
fluorescent
light,
subsequent
introduction
ultraviolet
(UV)
radiation,
adjustment
4.0
7.0,
while
maintaining
UV
exposure,
each
lasting
7
days.
found
that
factors
affected
TPhP
sorption
capacity,
higher
observed
radiation
acidic
In
contrast,
MP-only
systems
showed
no
clear
trend
for
adsorption,
suggesting
kinetic
limitations.
When
MPs
were
added
soil,
dynamics
altered,
varying
capacities
MP
polymers
ATR-FTIR
spectroscopy,
micro-Raman
water
contact
angle
measurements
suggested
potential
photooxidation
changes
hydrophobicity
subjected
provides
valuable
insights
into
interplay
between
soil
properties,
characteristics,
determining
environments.
