Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
64(1), P. 351 - 360
Published: Dec. 21, 2024
Defect
engineering
in
SrTiO3
crystals
plays
a
pivotal
role
achieving
efficient
overall
solar
water
splitting,
as
evidenced
by
the
influence
of
Al3+
ions.
However,
uneven
structural
relaxation
caused
ions
has
been
overlooked,
significantly
affecting
defect
state
and
catalytic
activity.
When
an
Al2O3
crucible
is
used,
optimizing
this
presents
significant
challenge.
In
study,
we
introduced
In3+
into
crystal
to
achieve
favorable
photocatalytic
performance.
Notably,
stabilizes
at
B
sites
SrTiO3,
outcompeting
Al3+,
demonstrating
bifunctional
effect
simultaneously
regulating
concentration
charges
mitigating
negative
impact
on
relaxation,
leading
shallow-state
defects.
Additionally,
incorporation
effectively
prevents
precipitation
perovskite
Sr2+.
Carrier
behavior
studies
density
functional
theory
(DFT)
calculations
provide
substantial
evidence
underlying
modulating
mechanism.
Consequently,
optimized
In3+-doped
exhibits
impressive
gas
evolution
rates
1.40
mmol·h–1
H2
0.69
O2
under
full-spectrum
light
irradiation,
corresponding
promising
apparent
quantum
yield
(AQY)
82.36%
365
nm
solar-to-hydrogen
(STH)
efficiency
0.54%.
Such
enhanced
activity
could
be
attributed
effective
ions,
which
improves
stability
lattice.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 10, 2024
Abstract
Photocatalytic
solar
hydrogen
generation,
encompassing
both
overall
water
splitting
and
organic
reforming,
presents
a
promising
avenue
for
green
production.
This
technology
holds
the
potential
reduced
capital
costs
in
comparison
to
competing
methods
like
photovoltaic‐electrocatalysis
photoelectrocatalysis,
owing
its
simplicity
fewer
auxiliary
components.
However,
current
solar‐to‐hydrogen
efficiency
of
photocatalytic
production
has
predominantly
remained
low
at
≈1–2%
or
lower,
mainly
due
curtailed
access
entire
spectrum,
thus
impeding
practical
application
review
offers
an
integrated,
multidisciplinary
perspective
on
Specifically,
existing
approaches
photocatalyst
system
designs
aimed
significantly
boosting
efficiency,
while
also
considering
factors
cost
scalability
each
approach.
In‐depth
discussions
extending
beyond
efficacy
material
design
strategies
are
particularly
vital
identify
hurdles
translating
photocatalysis
research
large‐scale
applications.
Ultimately,
this
aims
provide
understanding
feasible
pathways
commercializing
technology,
engineering
economic
standpoints.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(21)
Published: Jan. 30, 2024
Abstract
Rescuing
dental
implants
from
plaque‐induced
infection
and
implementing
effective
plaque
control
methods
in
a
limited
oral
environment
pose
challenges
for
modern
dentistry.
To
address
this
issue,
Al
ion
doped
strontium
titanate/titanium
dioxide
nanotubes
(Al‐SrTiO
3
/TiO
2
nanotubes,
Al‐STNT)
are
designed
as
an
ultrasound‐responsive
nanocoating
immobilized
on
the
Ti
implant
surface.
Introducing
3+
ions
into
inorganic
sonosensitive
SrTiO
heterojunction
induces
oxygen
vacancies
disrupts
lattice
of
.
By
overcoming
bandgap
barrier
through
ultrasonic
stimulated
piezoelectric
effect,
Al‐STNT
produces
more
reactive
species
(ROS).
In
sonodynamic
therapy
(SDT)
process,
stimulus
abundant
ROS
efficiently
disrupting
bacteria
biofilm
inhibiting
metabolism.
Moreover,
specific
nanoscale
coating
endows
with
osteogenic
activity,
facilitating
formation
rigid
osseointegration
between
surface
alveolar
bone.
mimicking
human
rats,
demonstrates
optimal
postimplant
while
retaining
its
antibacterial
ability
sonosensitizer.
Thanks
to
portability
ultrasound
instrument
stability
implant‐based
sonosensitizer,
strategy
presents
attractive
option
patients
self‐treat
secure
long‐term
success
their
implants.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 16, 2024
Abstract
This
study
presents
the
design
and
synthesis
of
a
hydrogel
composite
optimized
for
Interface
Solar
Steam
Generation
(ISSG),
merging
photothermal
MoS
2
hollow
nanospheres,
enhanced
via
polydopamine
(PDA)
coating
superior
light
absorption,
with
polyvinyl
alcohol
(PVA)
matrix.
The
achieves
conversion
efficiency
95.6%
at
interface,
highlighting
its
effectiveness
in
solar
energy
harvesting.
Under
1
kW
m⁻
irradiance,
remarkable
evaporation
rates
5.41
kg
h⁻¹
(pure
water)
5.07
(seawater)
are
recorded,
alongside
efficiencies
93.7%
90.8%.
Outdoor
testing
confirms
steady
freshwater
production
3.11
h⁻¹.
Incorporating
coupled
water
splitting
hydrogen
production,
this
system
effectively
mitigates
corrosive
effects
chloride
ions
typically
encountered
seawater,
ensuring
integrity
catalyst
thereby
maintaining
high
rate
45.5
mmol
It
exemplifies
sophisticated
approach
to
balancing
thermal
dynamics
transportation
technology.
By
demonstrating
feasibility
concurrent
efficient
catalytic
research
introduces
pivotal
strategy
enhancing
practicality
versatility
ISSG
systems,
advancing
sustainable
treatment
solutions.
Environmental Functional Materials,
Journal Year:
2024,
Volume and Issue:
3(1), P. 1 - 12
Published: March 1, 2024
Titanium
dioxide
(TiO2),
recognized
for
its
affordability,
low
cost,
high
chemical
stability,
and
eco-friendliness,
has
garnered
extensive
research
attention
in
recent
years.
But
because
of
the
TiO2
band
gap
(>3.2eV)
seriously
limit
use
visible
light,
fast
electron-hole
composite
often
lead
to
poor
photocatalytic
activity
quantum
yield.
Therefore,
needs
be
modified.
Modification
can
change
broadband
TiO2,
enhance
light
absorption,
thus
affect
important
means
efficiency.
In
this
review,
we
introduce
crystal
form
mechanism
review
some
modification
strategies
including
doping
modification,
construction
heterojunctions,
plane
engineering
defect
engineering.
Furthermore,
application
modified
TiO2-based
materials
water
treatment,
removal
dye
contaminants,
antibiotics,
advanced
oxidative
sterilization,
finally
explore
challenges
prospects
photocatalysts.
