Separations,
Год журнала:
2025,
Номер
12(4), С. 101 - 101
Опубликована: Апрель 21, 2025
In
recent
years,
the
rapid
development
of
industry
has
led
to
discharge
large
quantities
pollutants,
including
harmful
dyes,
into
water
sources,
thereby
posing
potential
threats
human
health
and
environment.
FeOCl
biochar
have
their
own
shortcomings
as
a
mediator
in
heterogeneous
Fenton
process.
To
make
both
materials
useful,
supported
on
bamboo
(FeOCl/BC)
was
prepared
by
calcination
using
FeCl3·6H2O
powder
raw
materials,
composite’s
catalytic
activities
were
explored
with
acid
orange
II
(AO-II)
target
pollutant.
The
degradation
efficiency
FeOCl/BC
composites
AO-II
determined
testing
mass
ratio
BC,
initial
pH,
temperature,
H2O2
concentration,
catalyst
addition,
addition
coexisting
inorganic
anions,
natural
organic
matter.
increased
activation
generate
•OH
for
removal
accelerated
cycle
Fe3+/Fe2+.
rate
Fe1C0.2
composite
97.1%
when
BC
1:0.2
(Fe1C0.2),
which
higher
than
that
pure
components
(FeOCl
or
BC)
at
pH
=
6.1.
Moreover,
after
five
reuses,
still
showed
high
activity
AO-II,
83.3%
low
loss.
capture
experiments
active
material
mainly
dominated
•OH;
however,
•O2−
h+
played
minor
roles.
synthesized
could
be
applied
contaminants
such
efficiency.
Environmental Science & Technology,
Год журнала:
2023,
Номер
57(33), С. 12534 - 12545
Опубликована: Авг. 9, 2023
The
continuous
electron
supply
for
oxidant
decomposition-induced
reactive
oxygen
species
(ROS)
generation
is
the
main
contributor
long-standing
micropollutant
oxidation
in
iron-based
advanced
processes
(AOPs).
Herein,
as
a
new
class
of
co-catalysts,
metal
borides
with
dual
active
sites
and
preeminent
conductive
performance
can
effectively
overcome
inherent
drawback
Fenton-like
reactions
by
steadily
donating
electrons
to
inactive
Fe(III).
Among
borides,
tungsten
boride
(WB)
exhibits
significant
co-catalytic
run
ahead
common
heterogeneous
co-catalysts
exceptionally
high
stability.
Based
on
qualitative
semi-quantitative
tests,
hydroxyl
radical,
sulfate
iron(IV)-oxo
complex
are
all
produced
WB/Fe(III)/PDS
system
Fe(IV)-induced
methyl
phenyl
sulfoxide
decomposition
up
72%.
Moreover,
production
efficiency
ROS
relative
proportions
radical
nonradical
pathways
change
various
experimental
conditions
(dosages
PDS,
WB,
solution
pH)
water
matrices.
rate-determining
step
Fe(II)
regeneration
greatly
accelerated
resulting
from
synergetic
effect
between
exposed
metallic
nonmetallic
boron
reductive
properties
WB.
In
addition,
self-dissolution
surface
oxide
leads
renovated
sustainable
Fe(III)
reduction
long-term
operations.
Our
discovery
provides
an
efficient
strategy
field
enhanced
AOPs
remediation.
Environmental Science Nano,
Год журнала:
2024,
Номер
11(4), С. 1368 - 1393
Опубликована: Янв. 1, 2024
Environmental
remediation
based
on
peroxomonosulfate-
and
peroxydisulfate-activation-enabled
radical/non-radical
oxidation
has
gained
growing
interest
due
to
the
strong
power,
long
life
of
reactive
oxygen
species,
wide
pH
adaptability.
