ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(3), С. 3012 - 3023
Опубликована: Янв. 29, 2024
Using
perovskite
photocatalytic
reduction
of
CO2
and
H2O
to
produce
hydrocarbon
fuels
offers
an
attractive
method
solve
the
energy
crisis
greenhouse
effect.
Bi4Ti3O12
(BTO)
has
received
much
attention
in
field
photocatalysis
due
its
unique
layered
structure,
but
it
still
faces
many
challenges
such
as
weak
photoresponse
severe
photogenerated
carrier
recombination.
In
this
paper,
nanosheets
with
different
concentrations
surface
oxygen
vacancies
(VO)
Ti3+
defect
were
prepared
by
molten
salt
NaBH4
high-temperature
(HBTO).
Surface
defects
formed
obvious
traps
on
HBTO
surface,
reduced
recombination
rate
electrons
holes,
adjusted
band
gap
structure
(from
3.09
2.62
eV),
which
improved
visible
light
utilization
HBTO.
The
decrease
photoinduced
improvement
response
significantly
enhanced
activity
under
light.
CH3OH
yield
optimized
HBTO-4
(NaBH4:Bi4Ti3O12
=
1:5)
was
4.90
μmol·g–1·h–1,
about
3.5
times
that
original
BTO.
Meanwhile,
electronic
density
states
(DOS),
work
function
calculated
functional
theory
(DFT).
This
study
provided
effective
strategy
for
designing
preparing
photocatalysts
rich
efficient
conversion
solar
energy.
Energy Technology,
Год журнала:
2024,
Номер
unknown
Опубликована: Фев. 27, 2024
The
escalating
issues
of
energy
crises
and
environmental
pollution
have
drawn
increasing
attention
for
photocatalysis
as
a
green
sustainable
solution.
In
this
context,
the
emergence
MXene
materials
has
injected
new
vitality
into
field
photocatalysis.
These
are
garnering
significant
interest
due
to
their
rich
surface
functional
groups,
interlayer
interactions,
tunable
spacing.
Hence,
review
provides
an
overview
role
in
photocatalytic
technology,
using
various
theoretical
simulations
analysis
methods
on
these
applications
involved
photoreduction
CO
2
valuable
products,
H
evolution
from
water
splitting,
photodegradation
organic
contaminants,
so
forth.
Furthermore,
current
challenges
potential
directions
discussed
perfecting
application
materials.
It
is
sincerely
hoped
that
will
stimulate
more
research
meet
needs
practical
future.
Catalysts,
Год журнала:
2024,
Номер
14(8), С. 540 - 540
Опубликована: Авг. 19, 2024
A
diatomite-modified
Fe2O3
(Fe2O3/Dia)
catalyst
was
prepared
to
catalyze
the
ozonation
degradation
of
sulfachloropyridazine
sodium
(SPDZ).
The
chemical
oxygen
demand
(COD)
used
as
index
pollutant
degradation.
catalytic
experiment
showed
that
COD
removal
rate
SPDZ
87%
under
Fe2O3/Dia
catalysis,
which
much
higher
than
obtained
when
using
catalyst.
characteristics
were
investigated,
and
successful
synthesis
composite
proved
by
XRD,
XPS,
SEM,
FTIR,
BET
other
characterization
methods.
mechanism
ozone
with
analyzed.
According
free-radical
trapping
experiments
an
in
situ
electron
paramagnetic
spectrometer
analysis,
main
oxidizing
species
system
is
·OH.
intermediates
process
detected
analyzed
detail
liquid
chromatography-coupled
mass
spectrometry.
three
paths
proposed.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 21, 2025
Abstract
Separating
photoexcited
holes
in
metallic
nanostructure
to
drive
H
2
O
oxidation
reaction
balance
the
CO
photoreduction
is
highly
desirable,
but
challenging.
The
bottleneck
lies
sluggish
kinetics
of
both
hole
transfer
and
oxidation.
Herein,
this
work
demonstrates
that
situ
reconstruction
n
‐type
wide‐bandgap
AlOOH‐supported
Au
nanoparticle
heterogeneous
photocatalyst,
triggered
by
thermal
photothermal
cooperative
effect
during
photocatalytic
reactions,
facilitates
efficient
through
optimizing
5
d
‐band
separation
activation.
In
ex
characterizations
evidence
restructuring
at
interfaces
form
an
ultrathin
γ‐Al
3
nanolayer
(≈2
nm
thickness),
which
optimizes
energy
band
structure
promotes
spontaneous
valence
AlOOH,
prolongs
lifetime
electrons
available
for
reduction
on
Au.
Furthermore,
hydroxyl
vacancies
generated
process
are
demonstrated
promote
adsorption
lower
barrier
formation,
supplying
adequate
protons
protonation
thereby
boosting
efficiency.
This
study
offers
valuable
insights
into
underlying
mechanisms
utilizing
semiconductors
separate
metal
nanoparticles.
Catalysts,
Год журнала:
2025,
Номер
15(5), С. 477 - 477
Опубликована: Май 12, 2025
Amid
global
efforts
toward
carbon
neutrality,
nanoconfined
catalysis
has
emerged
as
a
transformative
strategy
to
address
energy
transition
challenges
through
precise
regulation
of
catalytic
microenvironments.
This
review
systematically
examines
recent
advancements
in
systems
for
carbon-based
conversion
(CO2,
CH4,
etc.),
highlighting
their
unique
capability
modulate
electronic
structures
and
reaction
pathways
via
quantum
confinement
interfacial
effects.
By
categorizing
architectures
into
dimension-oriented
frameworks
(1D
nanotube
channels,
2D
layered
interfaces,
3D
core-shell
structures,
heterointerfaces),
we
reveal
how
geometric
constraints
synergize
with
mass/electron
transfer
dynamics
enhance
selectivity
stability.
Critical
optimization
strategies—including
heteroatom
doping
optimize
active
site
coordination,
defect
engineering
lower
barriers,
surface
modification
tailor
local
microenvironments—are
analyzed
elucidate
roles
stabilizing
metastable
intermediates
suppressing
catalyst
deactivation.
We
further
emphasize
the
integration
machine
learning,
situ
characterization,
modular
design
essential
establish
structure–activity
correlations
accelerate
industrial
implementation.
work
provides
multidimensional
perspective
bridging
fundamental
mechanisms
practical
applications
advance
carbon-neutral
systems.
