Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Март 28, 2025
Developing
efficient
and
stable
heterogeneous
catalysts
for
the
continuous
activation
of
oxidants
is
crucial
to
mitigating
global
water
resource
crisis.
Guided
by
computational
predictions,
this
research
achieved
goal
through
synthesis
a
modified
graphitic
carbon
nitride
with
enhanced
catalytic
activity
stability.
Its
intrinsic
was
further
amplified
dynamic
in-situ
reconstruction
using
I−/I3−
redox
mediator
system
during
photoreactions.
Impressively,
reconstructed
catalyst
demonstrated
capability
at
least
30
regeneration
cycles
while
maintaining
high
purification
efficacy.
The
mechanism
underlying
active
sites
periodate
functionalization
elucidated
theoretical
calculations,
coupled
semi-in-situ
X-ray
photoelectron
spectroscopy
(XPS)
electrochemical
analyses.
system's
capacity
detoxify
recalcitrant
pollutants
successful
Escherichia
coli
cultivation
Zebrafish
embryo
experiments.
economic
feasibility
environmental
impacts
are
quantitatively
assessed
Electrical
Energy
per
Order
(EE/O)
metric
Life
Cycle
Assessment
(LCA),
confirming
scalability
applicability
in
real-world
scenarios.
This
dual-site
constrained
interlayer
insertion,
controllable
achieve
durable
robustness
photocatalyst,
paving
way
development
sustainable
technologies.
Efficient
sustained
oxidant
vital
solving
crisis
but
elusive.
Here,
authors
explore
situ
photocatalysts
iodine
mediators,
develop
solar-driven
Fenton-like
that
activates
effective
wastewater
regeneration.
Applied Catalysis B Environment and Energy,
Год журнала:
2023,
Номер
342, С. 123457 - 123457
Опубликована: Ноя. 1, 2023
In
this
study,
we
developed
a
Cu0.5Fe2.5S4
nanocatalyst
through
facile
sulfidation
of
the
Cu-MIL-88B(Fe)
precursor
to
expedite
surface
Fe(III)
reduction
and
enhance
H2O2
activation
in
heterogeneous
electro-Fenton
(HEF).
The
as-prepared
catalyst
possesses
relatively
large
specific
area
uniformly
dispersed
metal
active
sites.
catalyzed
HEF
system
allowed
compete
removal
naproxen
with
minimal
leaching,
surpassing
that
or
Fe3S4.
Quantitative
XPS
analysis,
electrochemical
characterization
density
functional
theory
calculations
elucidate
an
electron
donor-shuttle
regime
S2-
Cu
species
serve
as
donor
shuttle,
respectively.
significantly
accelerate
internal
transfer
between
S
Fe
mitigate
dissolution
adjacent
iron
sites,
securing
sustainable
reducing
capacity.
Moreover,
Cu0.5Fe2.5S4-based
exhibits
great
practicability
for
treatment
various
organics
urban
wastewater.
This
study
opens
new
avenue
addressing
challenge
sluggish
Fe(III)/Fe(II)
cycling
HEF.
Proceedings of the National Academy of Sciences,
Год журнала:
2024,
Номер
121(23)
Опубликована: Май 28, 2024
Peracetic
acid
(PAA)
is
emerging
as
a
versatile
agent
for
generating
long-lived
and
selectively
oxidative
organic
radicals
(R–O
•
).
Currently,
the
conventional
transition
metal–based
activation
strategies
still
suffer
from
metal
ion
leaching,
undesirable
by-products
formation,
uncontrolled
reactive
species
production.
To
address
these
challenges,
we
present
method
employing
BiOI
with
unique
electron
structure
PAA
activator,
thereby
predominantly
CH
3
C(O)O
radicals.
The
specificity
of
generation
ensured
superior
performance
BiOI/PAA
system
across
wide
pH
range
(2.0
to
11.0),
even
in
presence
complex
interfering
substances
such
humic
acids,
chloride
ions,
bicarbonate
real-world
water
matrices.
Unlike
catalytic
methods,
degrades
sulfonamides
without
producing
any
toxic
by-products.
Our
findings
demonstrate
advantages
decontamination
pave
way
development
eco-friendly
decontaminations
based
on
peroxides.
Water Research,
Год журнала:
2024,
Номер
254, С. 121388 - 121388
Опубликована: Фев. 27, 2024
The
periodate
(PI)-based
advanced
oxidation
process
is
valued
for
environmental
remediation,
but
current
activation
methods
involve
high
costs,
secondary
contamination
risks,
and
limited
applicability
due
to
external
energy
inputs
(e.g.,
UV),
catalyst
incorporation
Fe
