Environmental Technology & Innovation,
Год журнала:
2023,
Номер
30, С. 103112 - 103112
Опубликована: Март 16, 2023
Microplastics
are
a
growing
concern
due
to
their
potential
negative
environmental
and
human
health
impacts.
This
study
investigated
the
physiochemical
changes
in
polyethylene
terephthalate
(PET)
microplastics
upon
aging
air,
seawater,
freshwater
through
exposure
Xenon
light
(artificial
aging)
sun
(natural
aging).
We
used
SEM
examine
surface
morphology
of
natural
aged
PET
found
that
particles
exhibited
mechanical
grinding,
irregular
wrinkles,
cracks,
small
subset
mesopores.
FTIR
analysis
revealed
were
degraded
an
oxidation
process,
resulting
appearance
carboxyl
hydroxyl
groups.
BET
showed
freshwater-aged
had
highest
specific
area
(SBET)
value.
also
studied
sorption
behavior
oxybenzone,
UV
filter
compound,
onto
microplastic
particles.
Our
results
indicated
followed
pseudo-second-order
model,
with
hydrophobic
interactions
hydrogen
bonding
formation
as
main
mechanisms.
The
equilibrium
adsorption
values
for
increased
from
6.62
9.10
mg/g
freshwater,
respectively,
compared
6.44
virgin
microplastics.
isotherm
experiments
Langmuir
model
could
represent
mechanism
materials,
while
air-
seawater-aged
more
accurately
described
using
Freundlich
model.
initial
concentrations
oxybenzone
background
solutions
increasing
trend
concentrations,
pH
different
effects
on
capacity
depending
age
solution
pH.
suggest
exhibit
enhanced
conditions,
uneven
distribution
active
groups
each
crack
formation.
Further
research
is
needed
explore
desorption
resources.
Water,
Год журнала:
2023,
Номер
15(8), С. 1498 - 1498
Опубликована: Апрель 11, 2023
Toxic
substances
have
a
deleterious
effect
on
biological
systems
if
accrued
in
ecosystems
beyond
their
acceptable
limit.
A
natural
ecosystem
can
become
contaminated
due
to
the
excessive
release
of
toxic
by
various
anthropogenic
and
activities,
which
necessitates
rehabilitation
environmental
contamination.
Phytoremediation
is
an
eco-friendly
cost-efficient
method
biotechnological
mitigation
for
remediation
polluted
revegetation
sites.
The
information
provided
this
review
was
collected
utilizing
sources
research
information,
such
as
ResearchGate,
Google
Scholar,
Scopus
database
other
relevant
resources.
In
paper,
we
discuss
(i)
organic
inorganic
contaminants;
(ii)
contamination
adverse
effects
terrestrial
aquatic
life;
(iii)
approaches
phytoremediation
process,
including
phytoextraction,
rhizoremediation,
phytostabilization,
phytovolatilization,
rhizofiltration,
phytodegradation,
phytodesalination
phytohydraulics,
underlying
mechanisms;
(iv)
functions
microbes
plant
enzymes
biodegradation
process
potential
applications;
(v)
advantages
limitations
technique.
reported
aimed
adequately
appraise
efficacy
treatment
facilitate
thorough
understanding
specific
contaminants
pathways.
Detailed
procedures
regarding
characteristics
ideal
plants,
heavy
metal
contamination,
rhizodegradation
techniques,
suitable
species
removal
these
are
put
forward
further
application.
Scientists,
planners
policymakers
should
focus
evaluating
possible
risk-free
alternative
techniques
restore
soil,
air
water
bodies
involving
local
inhabitants
concerned
stakeholders.
Environmental Technology & Innovation,
Год журнала:
2023,
Номер
30, С. 103112 - 103112
Опубликована: Март 16, 2023
Microplastics
are
a
growing
concern
due
to
their
potential
negative
environmental
and
human
health
impacts.
This
study
investigated
the
physiochemical
changes
in
polyethylene
terephthalate
(PET)
microplastics
upon
aging
air,
seawater,
freshwater
through
exposure
Xenon
light
(artificial
aging)
sun
(natural
aging).
We
used
SEM
examine
surface
morphology
of
natural
aged
PET
found
that
particles
exhibited
mechanical
grinding,
irregular
wrinkles,
cracks,
small
subset
mesopores.
FTIR
analysis
revealed
were
degraded
an
oxidation
process,
resulting
appearance
carboxyl
hydroxyl
groups.
BET
showed
freshwater-aged
had
highest
specific
area
(SBET)
value.
also
studied
sorption
behavior
oxybenzone,
UV
filter
compound,
onto
microplastic
particles.
Our
results
indicated
followed
pseudo-second-order
model,
with
hydrophobic
interactions
hydrogen
bonding
formation
as
main
mechanisms.
The
equilibrium
adsorption
values
for
increased
from
6.62
9.10
mg/g
freshwater,
respectively,
compared
6.44
virgin
microplastics.
isotherm
experiments
Langmuir
model
could
represent
mechanism
materials,
while
air-
seawater-aged
more
accurately
described
using
Freundlich
model.
initial
concentrations
oxybenzone
background
solutions
increasing
trend
concentrations,
pH
different
effects
on
capacity
depending
age
solution
pH.
suggest
exhibit
enhanced
conditions,
uneven
distribution
active
groups
each
crack
formation.
Further
research
is
needed
explore
desorption
resources.
