Energy & environment materials,
Journal Year:
2024,
Volume and Issue:
7(5)
Published: Jan. 22, 2024
Heterogeneous
catalysts
promoting
efficient
production
of
reactive
species
and
dynamically
stabilized
electron
transfer
mechanisms
for
peroxomonosulfates
(PMS)
still
lack
systematic
investigation.
Herein,
a
more
stable
magnetic
layered
double
oxides
(CFLDO/N‐C),
was
designed
using
self‐polymerization
high
temperature
carbonization
dopamine.
The
CFLDO/N‐C/PMS
system
effectively
activated
PMS
to
remove
99%
(
k
=
0.737
min
−1
)
tetracycline
(TC)
within
10
min.
exhibited
favorable
resistance
inorganic
anions
natural
organics,
as
well
satisfactory
suitability
multiple
pollutants.
properties
the
catalyst
facilitated
separation
from
liquid
phase,
resulting
in
excellent
reproducibility
reducing
leaching
metal
ions.
An
electronic
bridge
constructed
between
cobalt
(the
active
platform
catalyst)
PMS,
inducing
break
O–O
bond
generate
species.
combination
static
analysis
dynamic
evolution
confirmed
effective
adsorption
on
surface
strong
radical‐assisted
process.
Eventually,
we
further
identified
sites
where
attacked
TC
evaluated
toxicity
intermediates.
These
findings
offer
innovative
insights
into
rapid
degradation
pollutants
achieved
by
transition
metals
SR‐AOPs
its
mechanistic
elaboration.
Separation and Purification Technology,
Journal Year:
2024,
Volume and Issue:
354, P. 129060 - 129060
Published: Aug. 2, 2024
This
study
tackles
the
challenge
of
applying
fine
and
nano-catalyst
particles
in
Advanced
Oxidation
Processes
(AOPs),
primarily
due
to
complexities
nanoparticle
removal
from
treated
water
prevent
secondary
nano-hazards.
We
propose
an
innovative
solution:
micro-structured
ceramic
beads
(MSCBs,
approximately
3
mm
diameter)
with
a
unique
anisotropic
pore
structure.
For
first
time,
we
prepared
MSCBs
impregnated
cobalt
oxide
(Co/MSCBs)
using
phase-inversion
sintering-assisted
process.
The
Co/MSCBs
were
investigated
for
degradation
sulfamethoxazole
(SMX)
peroxymonosulfate
(PMS)
induced
AOPs
system
under
mild
reaction
conditions.
effects
operating
parameters
(e.g.,
SMX
concentration,
temperature,
catalyst
dosage)
Co/MSCBs|PMS
studied
on
three
different
types
catalytic
beads:
2Co/MSCB0
(beads
common
isotropic
structure),
2Co/MSCB1
radial
finger-like
microstructures
denser
outer
skin-layer),
2Co/MSCB2
no
skin
layer).
At
20
°C,
(59.1
%)
demonstrated
higher
efficiency
40
mg/L
comparison
(54.9
(49.6
%).
Additionally,
it
is
noteworthy
that
sample
2Co/MSCB2,
after
being
used
regenerated,
exhibited
significantly
performance
(70.83
%
min
during
16th
run)
than
fresh
one
(70.47
120
min).
After
reactions,
can
be
readily
separated
bulk
solution
next
run,
making
them
ideal
practical
applications.
Furthermore,
radical
quenching
experiment
was
conducted,
plausible
mechanism
proposed.
research
presents
new
approach
fabrication
are
capable
effectively
overcoming
diffusion
limitations
encountered
both
heterogeneous
reactions
adsorption
processes.
