npj Materials Sustainability,
Год журнала:
2025,
Номер
3(1)
Опубликована: Янв. 7, 2025
Abstract
Advanced
Oxidation
Processes
(AOPs)
are
promising
for
treating
persistent
pollutants,
yet
challenges
arise
due
to
the
step-wise
oxidants
activation
process,
which
traditional
single-active-center
catalysts
struggle
facilitate
effectively.
Recently,
dual-active-center
have
emerged
as
a
solution
by
enabling
synergistic
reactions.
This
review
covers
advances
in
these
catalysts,
their
co-catalytic
mechanisms,
and
applications
electro-Fenton,
photocatalytic,
peroxymonosulfate-,
pollutant-as-electron-donor
based
Fenton-like
processes,
along
with
active
site
design
considerations
future
challenges.
Chemical Reviews,
Год журнала:
2024,
Номер
124(20), С. 11348 - 11434
Опубликована: Окт. 9, 2024
Environmental
catalysis
has
emerged
as
a
scientific
frontier
in
mitigating
water
pollution
and
advancing
circular
chemistry
reaction
microenvironment
significantly
influences
the
catalytic
performance
efficiency.
This
review
delves
into
engineering
within
liquid-phase
environmental
catalysis,
categorizing
microenvironments
four
scales:
atom/molecule-level
modulation,
nano/microscale-confined
structures,
interface
surface
regulation,
external
field
effects.
Each
category
is
analyzed
for
its
unique
characteristics
merits,
emphasizing
potential
to
enhance
efficiency
selectivity.
Following
this
overview,
we
introduced
recent
advancements
advanced
material
system
design
promote
(e.g.,
purification,
transformation
value-added
products,
green
synthesis),
leveraging
state-of-the-art
technologies.
These
discussions
showcase
was
applied
different
reactions
fine-tune
regimes
improve
from
both
thermodynamics
kinetics
perspectives.
Lastly,
discussed
challenges
future
directions
engineering.
underscores
of
intelligent
materials
drive
development
more
effective
sustainable
solutions
decontamination.
Dual-atom
catalysts
(DACs)
have
shown
significant
application
potential
in
Fenton-like
reactions.
However,
effectively
modulating
their
electronic
structure
and
fully
understanding
the
mechanisms
driving
high
catalytic
activity
remain
challenging.
Herein,
we
propose
a
coordination
anions
dimensionality
engineering
strategy
to
synthesize
biomass-derived
dual-atom
FeCo-N4O1C
catalysts,
which
Fe
Co
atoms
are
bridged
by
two-dimensional
planar
N
three-dimensional
(3D)
axial
O
atom.
Experimental
data
theoretical
calculations
reveal
that
3D
of
induces
spin
state
undergo
transition
from
low
an
intermediate
compared
with
single-atom
Fe-N4O1C,
resulting
moderate
adsorption
desorption
intermediates,
thus
reducing
energy
barriers
for
generating
more
singlet
oxygen
high-valent
cobalt-oxo
species
during
peroxymonosulfate
activation.
The
electron
transfer
neighboring
through
can
prevent
poisoning
active
species.
Benefiting
synergistic
effects
multiple
sites,
catalyst-dose
normalized
reaction
rate
constant
reaches
14.5
L
min-1
g-1
under
concentrations─an
improvement
1
∼
2
orders
magnitude
over
most
reported
catalysts.
practical
applicability
is
demonstrated
nearly
100%
pollutant
removal
7
days
continuous
operation
membrane
filtration
system.
This
study
provides
deep
insights
into
relationship
between
performance
spin-state
regulation
DACs,
introduces
promising
approach
large-scale
synthesis
low-cost,
highly
efficient
DACs
