Continuous and selective recovery of fluorobenzene from complex water emulsion by superhydrophobic wood mimetic cryogel
Chemical Engineering Journal,
Год журнала:
2025,
Номер
unknown, С. 159710 - 159710
Опубликована: Янв. 1, 2025
Язык: Английский
Per- and polyfluoroalkyl substances in environment and potential health impacts: Sources, remediation treatment and management, policy guidelines, destructive technologies, and techno-economic analysis
The Science of The Total Environment,
Год журнала:
2025,
Номер
969, С. 178803 - 178803
Опубликована: Фев. 27, 2025
Язык: Английский
Plasma-Generated Free Electrons Induced Perfluorooctanoic Acid Efficient Degradation at the Gas–Liquid Interface
Environmental Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 2, 2025
Low-temperature
plasma,
generating
both
reductive
electrons
and
diverse
oxidative
species,
has
demonstrated
considerable
potential
for
the
degradation
of
perfluorooctanoic
acid
(PFOA).
However,
limited
understanding
electron
propagation
mechanisms
during
discharge
led
previous
research
to
focus
on
hydrated
(eaq-)
while
neglecting
free
(e-).
In
this
study,
a
consistent
modeled
dielectric
barrier
(DBD)
plasma
was
employed
degrade
PFOA.
Contribution
analysis
indicated
that
reactions
driven
by
e-
were
dominant,
with
substantial
contributions
from
hydroxyl
radical
(•OH)-mediated
oxidation.
By
integrating
kinetic
model
streamer
solver,
basic
unit
developed.
Simulation
identified
high-intensity
response
electric
field
formed
memory
effect,
peak
strength
1.816
×
106
V/m.
This
facilitated
secondary
acceleration
e-,
allowing
penetrate
surface
water
layer
directly
attack
PFOA
via
chain-shortening
mechanisms.
The
delocalized
state
restricted
primarily
gas-liquid
interface,
minimizing
interference
surrounding
medium.
study
highlights
previously
overlooked
role
provides
essential
theoretical
insights
plasma-based
treatment
PFOA-contaminated
water.
Язык: Английский
Leading Techniques for Per- and Polyfluoroalkyl Substances (PFASs) Remediating in Water and Wastewater
Water,
Год журнала:
2025,
Номер
17(9), С. 1319 - 1319
Опубликована: Апрель 28, 2025
Per-
and
polyfluoroalkyl
substances
(PFASs),
a
class
of
synthetic
organic
compounds
since
the
1940s,
have
become
widespread
persistent
environmental
pollutants.
Due
to
their
high
chemical
stability,
bioaccumulation
potential,
extensive
industrial
household
applications,
PFASs
drawn
significant
attention
from
researchers
worldwide
in
recent
years,
while
hot
topic,
publications
are
updated
very
quickly.
Various
remediation
technologies,
including
adsorption,
pyrolysis,
biodegradation,
advanced
oxidation,
been
developed
treated
as
leading
techniques
mitigate
PFAS
contamination.
Other
alternative
foam
fractionation,
constructed
wetland,
piezoelectric
ball
milling.
However,
effectiveness
these
methods
varies
depending
on
reaction
mechanisms,
operational
conditions,
factors.
This
review
provides
comprehensive
summary
latest
advancements
removal
strategies,
highlighting
advantages,
limitations,
potential
synergies.
Furthermore,
future
research
directions
technological
developments
discussed
explore
more
efficient,
sustainable,
cost-effective
solutions
for
remediation.
Язык: Английский
Current Challenges and Prospects in Superamphiphobic Surfaces Technology
Опубликована: Апрель 28, 2025
Язык: Английский
Degradation of Low‐Concentration Perfluoroalkyl Substances With a Nonthermal Gas–Liquid Plasma Reactor
Plasma Processes and Polymers,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 22, 2024
ABSTRACT
A
continuous
gas–liquid
flowing
film
reactor
with
nanosecond
pulsed
power,
where
plasma
channels
generated
in
argon
propagate
along
the
interface,
was
utilized
to
degrade
aqueous
solutions
of
perfluoroalkyl
substances
(PFAS).
Perfluorooctanoic
acid
(PFOA)
yielded
maximum
percentage
degradations
81.6%
and
76.5%
for
low
(98
±
29
ppt)
high
(300
30
concentrations,
respectively,
at
2
mL/min
liquid
flow
a
pulse
repetition
frequency
0.5
kHz.
mixture
perfluorocarboxylic
acids
(PFCAs)
perfluoroalkane
sulfonic
(PFSAs)
also
degraded.
Sequential
multi‐pass
treatments
PFOA
an
initial
concentration
413
142
ppt
using
kHz
resulted
84.3%
degradation
first
pass
no
detected
after
additional
passes.
Язык: Английский