Nanomaterials,
Journal Year:
2025,
Volume and Issue:
15(6), P. 432 - 432
Published: March 11, 2025
As
the
most
promising
techniques
for
refractory
antibiotic
degradation
in
wastewater
management,
sulfate
radical-based
advanced
oxidation
processes
(SR-AOPs)
have
attracted
considerable
attention.
However,
systematic
studies
on
potassium
peroxymonosulfate
(PMS)
activation
by
MOF-derived
metal
oxides
coated
with
LDH
materials
are
still
lacking.
In
this
work,
a
series
of
catalysts
consisting
CoCu-MOFs
CuAl/LDH
were
synthesized
PMS
removal
sulfamethoxazole
(SMX).
expected,
catalyst
showed
high
SMX
and
stability
activation.
CoCu/LDH/PMS
reaction,
was
nearly
100%
after
60
min,
mineralization
reached
53.7%.
The
excellent
catalytic
low
leaching
concentrations
(Co:
0.013
mg/L,
Cu:
0.313
mg/L),
as
detected
ICP.
Sulfate
radicals
hydroxyl
identified
dominant
reactive
species
system.
Moreover,
presence
1O2
process
revealed
coupling
non-radical
radical
processes.
XPS
results
that
layered
structure
CoCu/LDH
promoted
recycling
ions
(high
valence),
which
facilitated
heterogeneous
effects
different
reaction
conditions
reuse
cycles
also
determined.
pathways
proposed
based
intermediates
LC/MS.
activity
provide
new
mechanistic
understanding
their
potential
utilization
practical
treatment.
