Journal of Separation Science,
Год журнала:
2024,
Номер
47(23)
Опубликована: Дек. 1, 2024
ABSTRACT
Nanoplastics
(NPs)
are
emerging
water
contaminants
that
threaten
human
health
and
ecological
security.
Developing
a
method
for
detecting
NPs
is
significant
because
of
their
biological
toxicity
mobility.
In
this
study,
magnetic
solid‐phase
extraction
(MSPE)
combined
with
pyrolysis
gas
chromatography‐mass
spectrometry
(Py‐GC/MS)
was
used
the
pretreatment
qualitative
detection
in
complex
matrices
to
avoid
sample
dissolution
eluent
usages.
The
developed
methodology
can
quickly
achieve
low
limits
tap
river
water,
0.7283
0.6474
µg/L,
respectively.
To
enrich
biochars
derived
from
cornstalks
(Fe
3
O
4
/BCs,
i.e.,
Fe
/YMG
/YMG‐ZnCl
2
)
were
conveniently
fabricated
using
activation
coprecipitation
methods
employed
as
adsorbents
MSPE.
results
indicated
incorporation
into
BC
not
only
rendered
it
but
also
enhanced
diversity
its
surface
functional
groups
adsorption
sites,
making
suitable
demonstrated
excellent
enrichment
capacity
polystyrene
(PSNPs)
over
various
competitive
species.
Additionally,
exhibited
good
resistance
pH
anions,
reaction
mechanism
verified
kinetics
isothermal
models.
addition,
after
extracting
PSNPs
,
they
successfully
qualitatively
analyzed
by
Py‐GC/MS.
Nanomaterials,
Год журнала:
2024,
Номер
15(1), С. 26 - 26
Опубликована: Дек. 27, 2024
This
review
explores
biochar’s
potential
as
a
sustainable
and
cost-effective
solution
for
remediating
organic
pollutants,
particularly
polycyclic
aromatic
hydrocarbons
(PAHs)
pesticides,
in
water.
Biochar,
carbon-rich
material
produced
from
biomass
pyrolysis,
has
demonstrated
adsorption
efficiencies
exceeding
90%
under
optimal
conditions,
depending
on
the
feedstock
type,
pyrolysis
temperature,
functionalization.
High
surface
area
(up
to
1500
m2/g),
porosity,
modifiable
functional
groups
make
biochar
effective
adsorbing
wide
range
of
contaminants,
including
toxic
metals,
nutrients.
Recent
advancements
production,
such
chemical
activation
post-treatment
modifications,
have
enhanced
capacities,
with
engineered
achieving
superior
performance
treating
industrial,
municipal,
agricultural
effluents.
However,
scaling
up
applications
laboratory
research
field-scale
wastewater
treatment
poses
significant
challenges.
These
include
inconsistencies
variable
environmental
high
cost
large-scale
logistical
challenges
handling
deploying
at
scale,
need
integration
existing
systems.
Such
impact
practical
implementation
biochar-based
remediation
technologies,
requiring
further
investigation
into
production
methods,
long-term
assessments,
field-level
optimization
strategies.
underscores
importance
addressing
these
barriers
highlights
offer
sustainable,
environmentally
friendly,
economically
viable
treatment.
Journal of Environmental Management,
Год журнала:
2025,
Номер
383, С. 125394 - 125394
Опубликована: Апрель 22, 2025
Microplastics
and
nanoplastics
(MNPs)
are
emerging
contaminants
in
drinking
water
sources
that
pose
serious
risks
to
human
health
ecosystems.
Several
removal
strategies,
such
as
adsorption,
exist
but
present
challenges
for
their
industrial
scalability.
This
review
provides
a
concise
overview
of
MNP
adsorption
mechanisms
highlights
the
limited
critical
exploration
column
literature,
emphasizing
its
importance
large-scale
applications.
Special
attention
is
given
carbon-based
materials
due
cost-effectiveness,
environmental
friendliness
sustainability.
Other
adsorbents
(e.g.,
metal-organic
frameworks,
clays)
also
discussed
promising
performance
realistic
matrixes.
To
predict
optimize
efficiency
adsorbents,
leading
simulation
models
reviewed.
Taken
together,
this
work
comprehensive
fundamental
factors,
mechanisms,
adsorbent
selection
experimental
conditions,
adsorption.
By
highlighting
underexplored
area
column-based
processes,
it
valuable
information
advance
viable
industrial-scale
solution
contamination.
