A
straightforward,
single-stage
hydrothermal
approach
was
utilized
to
synthesize
a
unique
CuO@rGO-MoS2
nanocomposite,
featuring
nest-mimicking
architecture.
It
has
highly
efficient
heterogeneous
catalyzed
property
that
can
catalyze
and
activate
the
peroxymonosulfate
(PMS)
by
means
of
radical
(•OH,
SO4•-,
O2•-)
nonradical
(1O2)
pathways
generate
ROS
for
rapid
degradation
organic
dye
rhodamine
B
(Rh.B).
Graphene
oxide,
which
high
specific
surface,
serves
as
an
excellent
carrier
achieves
homogeneous
dispersion
main
catalyst
component
gives
series
oxygen-containing
functional
groups
become
active
centers
route
activation.
Through
experimental
DFT
calculation,
it
revealed
MoS2
cocatalyst
accelerated
redox
cycle
Cu
center
during
activation
PMS
via
catalysis,
further
enhancing
catalytic
activity
nanocomposites.
And
thus
CuO@rGO-MoS2/PMS
system
with
bird's-nest
like
structure
Rh.B
in
short
period,
decomposition
efficiency
reaches
99%
within
30
min
duration
reaction.
Besides,
this
exhibits
resistance
environmental
interference,
demonstrating
commendable
across
broad
pH
spectrum
(pH
5-11)
levels
common
interfering
ions
(Cl-,
NO3-,
SO42-,
etc.).
To
conclude,
study
tried
propose
validate
design
idea
based
on
selecting
appropriate
catalysts,
cocatalysts,
carriers
achieve
improved
performance
stability
synthesized
catalysts
strategy
have
shown
good
performances
real
wastewater.
Catalysts,
Год журнала:
2025,
Номер
15(3), С. 230 - 230
Опубликована: Фев. 27, 2025
Fe-based
heterogeneous
catalytic
advanced
oxidation
processes
show
great
potential
for
treating
wastewater.
However,
catalyst
instability
often
hinders
their
practical
use,
mainly
due
to
the
slow
regeneration
of
Fe2+
sites.
Herein,
we
developed
a
Fe3S4/WO3
catalyst,
where
electron-rich
Wx
and
Sx
sites
promoted
efficient
electron
transfer,
enabling
continuous
active
on
surface.
The
exhibited
outstanding
degradation
efficiency
tetracycline
(TC)
in
peroxymonosulfate
(PMS)
system,
achieving
92.5%
removal
efficiency,
significantly
higher
than
its
individual
components
Fe3S4
(52.8%),
WO3
(43.1%),
WS2
(53.2%).
Moreover,
Fe3S4/WO3/PMS
system
demonstrated
broad
operational
pH
range
(3.0–9.0),
excellent
various
emerging
pollutants,
minimal
interference
from
background
electrolytes
organic
matter,
strong
stability
real
water
treatment.
Chemical
scavenger
tests
paramagnetic
resonance
(EPR)
analysis
confirmed
that
oxidative
TC
was
driven
by
multiple
reactive
species,
including
SO4•−,
•OH,
•O2−,
1O2.
This
study
provides
novel
strategy
regulating
catalysts
ensure
sustained
performance,
offering
pathway
rational
design
next-generation
Fenton-like
sustainable
micropollutant
A
straightforward,
single-stage
hydrothermal
approach
was
utilized
to
synthesize
a
unique
CuO@rGO-MoS2
nanocomposite,
featuring
nest-mimicking
architecture.
It
has
highly
efficient
heterogeneous
catalyzed
property
that
can
catalyze
and
activate
the
peroxymonosulfate
(PMS)
by
means
of
radical
(•OH,
SO4•-,
O2•-)
nonradical
(1O2)
pathways
generate
ROS
for
rapid
degradation
organic
dye
rhodamine
B
(Rh.B).
Graphene
oxide,
which
high
specific
surface,
serves
as
an
excellent
carrier
achieves
homogeneous
dispersion
main
catalyst
component
gives
series
oxygen-containing
functional
groups
become
active
centers
route
activation.
Through
experimental
DFT
calculation,
it
revealed
MoS2
cocatalyst
accelerated
redox
cycle
Cu
center
during
activation
PMS
via
catalysis,
further
enhancing
catalytic
activity
nanocomposites.
And
thus
CuO@rGO-MoS2/PMS
system
with
bird's-nest
like
structure
Rh.B
in
short
period,
decomposition
efficiency
reaches
99%
within
30
min
duration
reaction.
Besides,
this
exhibits
resistance
environmental
interference,
demonstrating
commendable
across
broad
pH
spectrum
(pH
5-11)
levels
common
interfering
ions
(Cl-,
NO3-,
SO42-,
etc.).
To
conclude,
study
tried
propose
validate
design
idea
based
on
selecting
appropriate
catalysts,
cocatalysts,
carriers
achieve
improved
performance
stability
synthesized
catalysts
strategy
have
shown
good
performances
real
wastewater.
