Advanced Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 4, 2024
Abstract
Layered
double
hydroxides
(LDHs)
can
serves
as
catalysts
for
CO
2
photocatalytic
reduction
(CO
PR).
However,
the
conventionally
synthesized
LDHs
undergo
undesired
aggregation,
which
results
in
an
insufficient
number
of
active
sites
and
limits
desirable
electron
transfer
required
PR.
The
metal‐organic
framework
(MOF)
template‐grown
demonstrate
excellent
promise
exploiting
strengths
both
MOFs
LDHs.
Herein,
situ
growth
MIL‐68(In)‐NH
MOF‐templated
Co–In
bimetallic
catalyst
(CoIn‐LDH/MOF)
having
ultrathin
nanosheet
morphology
on
preserved
rod‐like
MOF
template
is
demonstrated.
Compared
to
grown
LDH
(CoIn‐LDH),
CoIn‐LDH/MOF
not
only
exposes
more
but
also
possesses
hydroxyl
vacancies
(
V
OH
)
Co
).
Thus,
performs
a
higher
generation
rate
2320
µmol
g
−1
h
during
PR,
demonstrating
improved
activity
selectivity
than
those
CoIn‐LDH.
Experiments
coupled
with
calculations
reveal
that
CoIn‐LDH/MOF‐driven
PR
follows
*
COOH
pathway.
lower
energy
barriers
formation
CO(g)
be
attributed
coexistence
CoIn‐LDH/MOF,
effectively
promoting
charge
enhancing
performance.
This
study
provides
new
strategy
obtain
high‐performant
LDH‐based
morphology.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 10, 2024
In
the
context
of
reshaping
energy
pattern,
designing
and
synthesizing
high-performance
noble
metal-free
photocatalysts
with
ultra-high
atomic
utilization
for
hydrogen
evolution
reaction
(HER)
still
remains
a
challenge.
streamlined
synthesis
process,
in-situ
single
atom
anchoring
is
performed
in
parallel
HER
by
irradiating
precursory
defect-state
CdS/Co
suspension
(Co-DCdS-Ss)
system
under
simulated
sunlight
single-atom
Co
photocatalyst
(Co5:DCdS)
exhibits
further
improved
catalytic
performance
(60.10
mmol
g
Abstract
Recently,
layered
double
hydroxides
(LDH)
have
shown
great
potential
in
photoreduction
of
CO
2
owing
to
its
flexible
structural
adjustability.
In
this
study,
the
mild
acidic
property
tannic
acid
(TA)
is
exploited
etch
bimetal
LDH
create
abundant
vacancies
gain
coordination
unsaturated
active
centers.
Based
on
different
chelating
abilities
TA
various
metal
ions,
metals
are
remained
by
selective
chelation
while
inert
removed
during
etching
process
LDH.
Furthermore,
with
ions
not
only
increases
percentage
highly
but
also
compensates
for
damage
caused
etch,
which
achieves
a
scalpel‐like
construction
vacancies.
The
NiAl‐LDH
etched
and
functionalized
3
h
exhibits
superior
photo‐reduction
performance
without
co‐catalysts
photo‐sensitizers,
14
times
that
pristine
NiAl‐LDH.
fact
many
LDHs
can
be
exhibit
significantly
improved
photocatalytic
efficiency
confirmed,
suggesting
strategy
generalized
functionalize
double‐
or
multi‐metal
method
provided
work
opens
door
polyphenol‐functionalized
enhance
their
ability
light‐driven
chemical
transformations.
Interdisciplinary materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 7, 2025
ABSTRACT
Regulated
cell
death
(RCD)
is
considered
a
vital
process
in
cancer
therapy,
determining
treatment
outcomes
and
facilitating
the
eradication
of
cells.
As
an
emerging
type
RCD,
PANoptosis
features
excellent
antineoplastic
effects
due
to
its
combination
modes,
including
pyroptosis,
apoptosis,
necroptosis.
In
this
work,
anion‐cation
vacancies
(oxygen/titanium‐vacancy‐rich)
ultrathin
HTiO
nanosheets
with
outstanding
sonocatalytic
performance
peroxidase‐mimicking
activity
are
rationally
engineered
for
disruption
mitochondrial
function
tumor
cells
destabilization
redox
homeostasis,
ultimately
inducing
PANoptosis.
The
utilization
external
ultrasound
energy
amplifies
production
toxic
reactive
oxygen
species
(ROS).
Density
functional
theory
calculations
indicate
that
titanium
generated
enhance
ROS
generation
efficiency
by
promoting
carrier
separation
increasing
adsorption
capacity
H
2
O
.
advantages
triggering
substantially
evidenced
exceptional
efficacy
both
at
cellular
level
on
two
vivo
separate
xenografts
(4T1
MDA‐MB‐231
breast
tumors).
This
work
highlights
distinct
titanium‐based
nanostructure
multimodal
synergistic
integration
enzymatic
therapies,
offering
alternative
but
highly
efficient
strategy
fabricating
vacancy‐engineered
biomaterials
optimized
therapeutic
treatment.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 30, 2025
Abstract
The
efficient
photocatalytic
reduction
of
CO
2
into
value‐added
chemicals
is
significantly
challenged
by
the
charge
carrier
separation
and
transfer
kinetics
photocatalysts
as
well
thermodynamics
process.
Herein,
it
proposes
a
heterojunction
with
asymmetric
W‐Cl
anion
layer
in
Bi
WO
6
(abbreviated
BWOC).
results
unbalanced
electron
density
distribution
thus
enables
to
establish
atomic‐level
donor–acceptor
structure
larger
electrostatic
potential
heterojunction,
which
facilitate
kinetics.
Simulation
on
intermediates
photoreduction
process
demonstrates
that
possesses
smaller
energy
barrier
for
rate‐determining
step
*COOH
endothermic
formation,
thermodynamically
more
favorable
generate
further
confirmed
detection
over
situ
Fourier
transform
infrared
spectroscopy.
As
result,
BWOC
achieved
rather
high
yield
value
32.11
µmol
g
−
¹
h
nearly
four
times
higher
than
pure
.
construction
this
work
provides
new
insights
design
systems
toward
reduction.
Abstract
CO
2
is
a
major
contributor
to
global
warming,
leading
severe
environment
and
human
health
consequences.
Catalytic
hydrogenation
has
emerged
as
one
of
the
most
promising
strategies
mitigate
emissions.
However,
catalytic
performance
existing
catalysts
remains
suboptimal.
Recent
studies
have
highlighted
potential
oxygen
vacancy
(OV)
engineering
enhance
by
activating
reactants,
accelerating
electron
transport,
tuning
surface
chemical
properties
catalysts.
Despite
its
importance,
comprehensive
review
OV
in
reactions
lacking.
This
systematically
examines
recent
advancements
for
design
novel
materials
reactions.
It
covers
key
aspects
such
construction
methods,
characterization
techniques,
functions
OVs.
Additionally,
addresses
challenges
catalyst
synthesis
characterization,
while
outlining
future
directions
field.
aims
provide
valuable
insights
development
highly
efficient
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 3, 2025
Abstract
Despite
its
potential
in
hydrogen
(H
2
)
therapy,
ammonia
borane
(AB)
has
limited
biomedical
applications
due
to
uncontrolled
hydrolysis
rate
and
cause
cytotoxicity.
Existing
material‐based
delivery
strategies
focus
on
accelerating
AB
for
H
production,
hence
exacerbating
these
issues.
A
new
nanoconfinement
strategy
is
reported,
which
loads
onto
oxygen‐deficient,
hybrid‐phased
titanate
nanocrystals
implant
surfaces
through
a
unique
one‐end‐anchored
docking
(OEAD)
mechanism.
This
effectively
restricts
the
release
of
molecules,
allowing
only
water
molecules
infiltrate
interlayer
space
slow
sustained
release.
significantly
prolongs
duration
circumvents
cytotoxicity
associated
with
interacting
peroxide
O
inflammatory
microenvironment.
In
vitro
vivo
have
shown
that
from
surface
alleviates
diabetes‐related
oxidative
stress,
combined
magnesium
ions
(Mg
2+
synergistically
promotes
innervated‐vascularized
bone
regeneration.