Advanced Healthcare Materials,
Год журнала:
2023,
Номер
13(1)
Опубликована: Сен. 6, 2023
Sonodynamic
therapy
(SDT)
has
emerged
as
a
highly
effective
modality
for
the
treatment
of
malignant
tumors
owing
to
its
powerful
penetration
ability,
noninvasiveness,
site-confined
irradiation,
and
excellent
therapeutic
efficacy.
However,
traditional
SDT,
which
relies
on
oxygen
availability,
often
fails
generate
satisfactory
level
reactive
species
because
widespread
issue
hypoxia
in
tumor
microenvironment
solid
tumors.
To
address
this
challenge,
various
approaches
are
developed
alleviate
improve
efficiency
SDT.
These
strategies
aim
either
increase
supply
or
prevent
exacerbation,
thereby
enhancing
effectiveness
In
view
this,
current
review
provides
an
overview
these
their
underlying
principles,
focusing
circulation
from
consumption
external
supply.
The
detailed
research
examples
conducted
using
combination
with
SDT
also
discussed.
Additionally,
highlights
future
prospects
challenges
hypoxia-alleviated
along
key
considerations
clinical
applications.
include
development
efficient
delivery
systems,
accurate
methods
detection,
exploration
therapies
optimize
outcomes.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Март 6, 2024
Propelled
by
the
structure
of
water
oxidation
co-catalysts
in
natural
photosynthesis,
molecular
have
long
been
believed
to
possess
developable
potential
artificial
photosynthesis.
However,
interfacial
complexity
between
light
absorber
and
co-catalyst
limits
its
structural
stability
charge
transfer
efficiency.
To
overcome
challenge,
a
supramolecular
scaffold
with
[FeCl
ACS Energy Letters,
Год журнала:
2024,
Номер
9(7), С. 3308 - 3315
Опубликована: Июнь 11, 2024
Altering
the
surface
stoichiometry
of
semiconductor
electrodes
is
known
to
affect
photoelectrochemical
(PEC)
response.
To
date,
several
reports
have
hinted
at
influence
Bi:V
ratio
on
solar
water
oxidation
performance
BiVO4
photoanodes,
but
only
a
handful
strategies
been
reported
afford
tuning
such
stoichiometry,
while
comprehensive
understanding
an
atomic
level
role
termination
remains
elusive.
Herein,
we
report
new
methodology
that
modulates
and
maximizes
PEC
toward
oxygen
evolution
reaction
(OER).
The
presence
ammonium
metavanadate
drastically
reduces
recombination
improving
charge
separation.
Detailed
characterization
revealed
this
treatment
filled
native
vanadium
vacancies,
which
usually
act
as
centers,
inducing
significant
increase
in
density
reinforced
built-in
electric
field
drives
Interestingly,
coating
with
NiFeOx
improves,
especially,
separation
V-modified
BiVO4.
Results
suggest
altered
energetics
BiVO4,
leading
improved
band
alignment
across
interface.
Overall,
these
results
provide
platform
modulate
thin
films
shedding
light
mechanisms
by
governs
Nano Research,
Год журнала:
2023,
Номер
17(3), С. 1140 - 1150
Опубликована: Июль 26, 2023
Abstract
Oxygen
vacancies
in
oxygen
evolution
cocatalysts
(OECs)
can
significantly
improve
the
photoelectrochemical
(PEC)
water
splitting
performance
of
photoanodes.
However,
OECs
with
abundant
have
a
poor
stability
when
exposing
to
highly-oxidizing
photogenerated
holes.
Herein,
we
partly
fill
MnCo
2
O
x
OEC
N
atoms
by
combined
electrodeposition
and
sol-gel
method,
which
dramatically
improves
both
photocurrent
density
BiVO
4
photoanode.
The
optimized
filled
vacancy-rich
/BiVO
photoanode
(3
at.%
N)
exhibits
an
outstanding
6.5
mA·cm
−2
at
1.23
V
RHE
under
AM
1.5
G
illumination
(100
mW·cm
),
excellent
over
150
h.
Systematic
characterizations
theoretical
calculations
demonstrate
that
stabilize
defect
structure
modulate
surface
electron
distribution,
enhances
further
increases
density.
Meanwhile,
other
heteroatoms
such
as
carbon,
phosphorus,
sulfur
are
confirmed
similar
effects
on
improving
PEC
Nano Letters,
Год журнала:
2023,
Номер
23(24), С. 11785 - 11792
Опубликована: Дек. 11, 2023
Nanostructured
bismuth
vanadate
(BiVO4)
is
at
the
forefront
of
emerging
photoanodes
in
photoelectrochemical
tandem
devices
for
solar
water
splitting
owing
to
suitable
band
edge
position
and
efficient
charge
separation
capability.
However,
(photo)chemical
corrosion
involving
V5+
dissolution
limits
long-term
stability
BiVO4.
Herein,
guided
by
DFT
calculations,
we
introduce
an
ALD-derived
NiOx
catalyst
layer
on
BiVO4
stabilize
surface
Bi–O
bonds,
facilitate
hole
extraction,
thus
suppress
dissolution.
At
same
time,
ALD
could
efficiently
recombination
accelerate
OER
kinetics,
boosting
half-cell
applied
bias
photon-to-current
efficiency
2.05%,
as
well
a
fill
factor
47.1%.
By
adding
trace
NaVO3
electrolyte,
NiOx/BiVO4
photoanode
with
illumination
area
10.5
cm2
shows
record
operational
more
than
2100
h.
