Environmental Technology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 18
Published: Feb. 2, 2025
This
study
investigates
the
use
of
porous
structured
carbon
felt
(CF)
as
a
substrate
for
preparation
lead
dioxide
(CF/PbO2)
anode
electrochemical
oxidation
Rhodamine
B
(RhB).
Compared
to
traditional
titanium-based
(Ti/PbO2)
and
graphite
sheet-based
(GS/PbO2)
anodes,
CF/PbO2
exhibited
superior
electrocatalytic
activity,
achieving
RhB
degradation
efficiency
exceeding
99%.
After
10
cycles,
activity
remained
robust,
with
over
97%.
Fluorescence
spectroscopy,
quenching
experiments,
tests
indicate
that
behaviour
on
GS/PbO2
anodes
was
governed
by
direct
electron
transfer,
while
indirect
via
•HO
radicals
pivotal
Ti/PbO2
anode.
LC-MS
analysis
identified
intermediates
degradation,
contributing
proposed
pathway.
provides
an
efficient
organic
pollutants
in
water.
Environmental Science Nano,
Journal Year:
2024,
Volume and Issue:
11(4), P. 1332 - 1367
Published: Jan. 1, 2024
This
review
discusses
the
characteristics
and
synthesis
methods
of
Bi-based
NPs.
It
delves
into
removal
efficiency
in
wastewater,
emphasizing
traditional/emerging
strategies
to
enhance
performance,
mechanisms,
toxicology,
challenges.
Case Studies in Chemical and Environmental Engineering,
Journal Year:
2024,
Volume and Issue:
9, P. 100685 - 100685
Published: March 12, 2024
The
high
toxicity
and
environmental
stability
of
organochlorine
pesticides
have
made
organophosphorus
(OPPs)
more
preferred
today.
Diazinon
is
one
the
most
widely
used
insecticides
in
group
OPPs,
which
has
environment
causes
neurobehavioral
side
effects
case
long-term
exposure
to
humans.
present
study
aims
fabricate
PbO2
electrocatalyst
on
a
graphite
sheet
(G/PbO2)
use
it
as
non-active
anode
for
diazinon
degradation.
effect
independent
variables
such
solution
pH,
current
applied
electrodes,
initial
concentration
reaction
time
removal
efficiency
pesticide
was
studied.
SEM
XRD
results
showed
that
lead
dioxide
crystals
β-PbO2
phase
were
formed
compact
pyramidal
clusters
surface
anode.
At
pH
8,
significantly
improved.
However,
mild
operating
conditions
(solution
=
5
0.4
A),
with
concentrations
20
100
mg/L
after
90
min
100%
70%,
respectively.
After
optimizing
intermediates
LC-MS
analysis,
proposed
degradation
pathway
mineralization
presented.
confirm
anodic
oxidation
can
be
an
effective
method
pesticide.
Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 5, 2025
Antiviral
drugs,
in
particular
those
used
to
treat
COVID-19,
have
been
categorized
as
emerging
pollutants
recent
years
due
their
persistent
presence
water/wastewater.
They
identified
environmental
matrices
all
over
the
world,
proving
that
current
treatment
methods
cannot
eliminate
them
from
In
this
study,
degradation
of
favipiravir
(FAV)
and
ecotoxicity
changes
different
water
were
investigated
using
UV,
UV/H2O2,
UV/Co-doped
ZnS
quantum
dots
(QDs)
photocatalytic
processes.
The
effects
initial
FAV
concentration,
matrices,
pH,
H2O2
catalyst
amount
on
rate
evaluated.
Initial
concentrations
(50,
100,
150
μg/L)
a
slight
effect
rate.
matrix
composition
significantly
reduced
rates
efficiencies
for
QDs
processes
following
order:
wastewater
plant
(WWTP)
effluent
>
tap
(TW)
distilled
(DW).
pH
(4.0,
5.0,
7.0,
9.0)
had
remarkable
enhanced
86.3
98.1%
with
increasing
4.0
9.0
ionization
degree
UV
process.
maximum
was
obtained
at
7.0
removal
93.9
100%
UV/H2O2
processes,
respectively.
Transformation
products
determined
toxicity
algae
increased
50
μg/L
water.
Growth
inhibition
50,
15.1,
33.3,
36.3%
96
h,
respectively,
without
any
treatment.
After
60
min
process,
growth
decreased
below
0.5%
regardless
concentration.
Overall,
process
is
effective
degrading
aqueous
matrices;
however,
an
step
required
remove
natural
organic
matter
actual
matrices.
