Water Research,
Journal Year:
2024,
Volume and Issue:
255, P. 121485 - 121485
Published: March 18, 2024
Catalytic
polymerization
pathways
in
advanced
oxidation
processes
(AOPs)
have
recently
drawn
much
attention
for
organic
pollutant
elimination
owing
to
the
rapid
removal
kinetics,
high
selectivity,
and
recovery
of
carbon
from
wastewater.
This
work
presents
a
review
on
regimes
AOPs
their
applications
wastewater
decontamination.
The
mainly
highlights
three
critical
issues
reactions
induced
by
persulfate
activation
(Poly-PS-AOPs),
including
heterogeneous
catalysts,
pathways,
properties
substrates.
dominant
influencing
factors
selection
reactive
oxygen
species,
substrates
are
discussed
detail.
Moreover,
we
systematically
demonstrate
merits
challenges
Poly-PS-AOPs
upon
degradation
polymer
synthesis.
We
particularly
highlight
that
technology
could
be
promising
treatment
industrial
containing
heterocyclic
organics
synthesis
polymers
polymer-functionalized
materials
environmental
energy
applications.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Jan. 2, 2025
Abstract
High-entropy
alloy
nanoparticles
(HEA-NPs)
exhibit
favorable
properties
in
catalytic
processes,
as
their
multi-metallic
sites
ensure
both
high
intrinsic
activity
and
atomic
efficiency.
However,
controlled
synthesis
of
uniform
ensembles
at
the
level
remains
challenging.
This
study
successfully
loads
HEA-NPs
onto
a
nitrogen-doped
carbon
carrier
(HEAs)
pioneers
application
peroxymonosulfate
(PMS)
activation
to
drive
Fenton-like
oxidation.
The
HEAs-PMS
system
achieves
ultrafast
pollutant
removal
across
wide
pH
range
with
strong
resistance
real-world
water
interferences.
Furthermore,
nonradical
selectively
transforms
phenolics
into
high-molecular-weight
products
via
polymerization
pathway.
unique
non-mineralization
regime
remarkably
reduces
PMS
consumption
electron
utilization
efficiency
up
213.4%.
Further
DFT
calculations
experimental
analysis
reveal
that
Fe
Co
act
primary
complex
for
activation,
while
Ni,
Cu,
Pd
serve
charge
mediators
facilitate
transfer.
resulting
PMS*
complexes
on
HEAs
possess
redox
potential,
which
drives
spatially
separated
phenol
oxidation
graphene
support
form
phenoxyl
radicals,
subsequently
triggering
formation
high-molecule
polymeric
reactions.
offers
engineered
catalysts
treatment
low
oxidant
emissions.
For
several
decades,
the
methodology
of
complete
destruction
organic
pollutants
via
oxidation,
i.e.,
mineralization,
has
been
rooted
in
real
water
treatment
applications.
Nevertheless,
this
industrially
accepted
protocol
is
far
from
sustainable
because
excessive
input
chemicals
and/or
energy
as
well
unregulated
carbon
emission.
Recently,
there
have
emerging
studies
on
removal
a
completely
different
pathway,
polymerization,
meaning
that
target
undergo
oxidative
polymerization
reactions
to
generate
polymeric
products.
These
collectively
shown
compared
conventional
mineralization
pathway
allows
more
efficient
pollutants,
largely
reduced
chemicals,
and
suppressed
In
review,
we
aim
provide
comprehensive
examination
fundamentals
process,
current
state-of-the-art
strategies
for
regulation
both
kinetic
thermodynamic
perspectives,
resource
recovery
formed
end,
limitations
process
pollutant
are
discussed,
with
perspectives
future
studies.
Hopefully,
review
could
not
only
critical
insight
advancement
polymerization-oriented
technologies
greener
manner
but
also
stimulate
paradigm
innovations
low-carbon
treatment.
Applied Organometallic Chemistry,
Journal Year:
2025,
Volume and Issue:
39(3)
Published: Feb. 16, 2025
ABSTRACT
The
inability
to
recycle
Fenton
reagents
and
a
narrow
pH
range
restricts
hematite
(Fe
2
O
3
)
application
in
the
actual
photo‐Fenton
system.
engineering
of
surface
structures
is
identified
as
an
effective
approach
for
enhancing
activity
material.
In
this
work,
three
different
morphologies
(nanosheet,
cube,
ring)
Fe
materials
containing
oxygen
vacancies
(OVs)
were
synthesized
by
hydrothermal
method,
novel
system
degradation
sulfamethazine
was
examined.
presence
oxalic
acid,
/oxalic
acid
heterogeneous
catalytic
demonstrated
situ
generation
H
facilitated
Fenton‐like
reactions.
as‐prepared
nanosheet‐Fe
showed
highest
efficiency.
free
radical
capture
experiment
investigated
using
sacrificial
agents,
results
suggested
that
superoxide
radicals
principal
active
species
involved.
Ecotoxicity
assessments
utilizing
toxicity
prediction
software
assessed
reaction
intermediates
generated
during
via
quantitative
structure–activity
relationship
indicating
these
exhibited
reduced
developmental
toxicity.
possible
pathways
mechanism
synergistic
effect
between
proposed.
This
research
presents
strategy
design
synthesis
photocatalysts
with
various
vacancies,
suitable
catalysis
related
environmental
contexts.
Heterogeneous
persulfate-based
advanced
oxidation
processes
(PS-AOPs)
have
been
gaining
significant
attention
in
water/wastewater
treatment;
however,
the
elucidation
of
mechanisms
PS-AOPs
has
become
increasingly
complex
as
understanding
potential
reactive
pathways
expands
and
rigor
corresponding
characterizations
intensifies.
As
such,
accurately
illustrating
system
with
a
robust
convincing
methodology
is
crucial,
while
influence
substrates
must
not
be
overlooked.
In
this
Perspective,
established
techniques
critical
issues
are
systematically
compiled
to
serve
practical
guidelines.
Additionally,
newly
proposed
pathway,
direct
transfer
process
(DOTP),
discussed
comparison
conventional
mineralization
by
oxidative
species
(ROS)
PS-AOPs.
Overall,
investigation
PS-AOP
across
various
heterogeneous
systems
remains
contentious
calls
for
standardization,
which
work
aims
valuable
reference.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(27), P. 12155 - 12166
Published: June 27, 2024
The
rising
in
situ
chemical
oxidation
(ISCO)
technologies
based
on
polymerization
reactions
have
advanced
the
removal
of
emerging
contaminants
aquatic
environment.
However,
despite
their
promise,
uncertainties
persist
regarding
effectiveness
eliminating
structurally
complex
contaminants,
such
as
sulfonamide
antibiotics
(SAs).
This
study
elucidated
that
oligomerization,
rather
than
mineralization,
predominantly
governs
SAs
carbon
materials/periodate
system.
amine
groups
played
a
crucial
role
forming
organic
radicals
and
subsequent
coupling
due
to
high
f–
index
low
bond
orders.
Moreover,
highlighted
robust
adhesion
oligomers
catalyst
surface,
facilitated
by
enhanced
van
der
Waals
forces
hydrophobic
interactions.
Importantly,
plant
animal
toxicity
assessments
confirmed
nontoxic
nature
deposited
material
affirming
efficacy
material-based
ISCO
treating
contaminated
surface
water
groundwater.
Additionally,
novel
classification
approach,
Δlog
k,
was
proposed
differentiate
kinetic
control
steps,
providing
deeper
insights
into
quantitative
structure–activity
relationship
(QSAR)
facilitating
selection
optimal
descriptors
during
oligomerization
processes.
Overall,
these
significantly
enhance
our
understanding
via
demonstrate
superiority
C-ISCO
decontamination.
Water Research,
Journal Year:
2024,
Volume and Issue:
257, P. 121715 - 121715
Published: May 2, 2024
High-valent
metal-oxo
species
(HMOS)
have
been
extensively
recognized
in
advanced
oxidation
processes
(AOPs)
owing
to
their
high
selectivity
and
chemical
utilization
efficiency.
However,
the
interactions
between
HMOS
halide
ions
sewage
wastewater
are
complicated,
leading
ongoing
debates
on
intrinsic
reactive
impacts
remediation.
Herein,
we
prepared
three
typical
HMOS,
including
Fe(IV),
Mn(V)-nitrilotriacetic
acid
complex
(Mn(V)NTA)
Co(IV)
through
peroxymonosulfate
(PMS)
activation
comparatively
studied
with
Cl
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(44), P. 19571 - 19583
Published: Oct. 23, 2024
Radical-based
advanced
oxidation
processes
(AOPs)
are
among
the
most
effective
technologies
employed
to
destroy
organic
pollutants.
Compared
common
inorganic
radicals,
such
as
