ACS Catalysis,
Journal Year:
2022,
Volume and Issue:
13(1), P. 749 - 756
Published: Dec. 24, 2022
The
alkaline
H2-generation
activity
of
RuSe2
materials
is
inhibited
by
its
relatively
inadequate
water-adsorption
ability
and
weak
selenium–hydrogen
(Se–Hads)
bonds
in
photocatalytic
water
splitting.
Herein,
the
adsorption
Se–Hads
have
been
synchronously
strengthened
to
improve
H2
evolution
TiO2
via
creating
electron-deficient
Ruδ+
Seδ+
sites
Se-rich
amorphous
RuSe2+x
(RuSe2+x)
nanodots.
By
a
facile
complexation-photodeposition
pathway,
nanodots
(ca.
1.5
nm)
are
perfectly
anchored
onto
nanoparticles.
Compared
pristine
conventional
c-RuSe2/TiO2
materials,
constructed
RuSe2+x/TiO2(0.5
wt
%)
photocatalyst
achieves
an
improved
rate
227.42
μmol
h–1
with
releasing
visual
bubbles
media.
experimental
theoretical
studies
support
that
excess
Se
atoms
induce
charge
redistribution
Ru
form
sites,
which
enhance
strengthen
bonds,
thus
boosting
production.
This
research
delivers
significant
approach
design
high-performance
for
production
double
active-site
regulation.
Advanced Functional Materials,
Journal Year:
2021,
Volume and Issue:
32(12)
Published: Nov. 25, 2021
Abstract
Energy‐related
problems
induced
by
ever‐continuous
fossil
consumption
have
arisen
as
one
of
the
most
challenging
issues
in
21
st
century,
imposing
urgent
demands
on
advanced
materials
to
achieve
high
energy
utilization
and
a
sustainable
society.
In
various
solar
solar‐to‐fuel
conversion
processes,
charge
carriers
are
main
inevitable
participators,
dynamics
related
their
generation,
migration,
separation,
is
key
advance
material
design
for
settling
above
issues.
Internal
electric
field
(IEF),
also
named
built‐in
field,
could
guide
directional
migration
carriers,
achieving
effective
utilization,
prolonged
lifetimes.
This
critical
review
begins
with
discussion
modulation
strategies
toward
IEF
together
in‐detail
elucidated
mechanisms
its
formation.
Some
cascade
systems
telling
conclusive
role
from
intrinsic
strategy
discussed.
Then,
summary
state‐of‐the‐art
advances
characterization
means
both
quantitative
qualitative
perspectives
provided.
Finally
presented
modulations
several
specific
energy‐related
applications
concerning
cell,
photocatalysis,
photodetectors,
batteries
better
understand
superiority
well‐performed
design,
followed
future
development
opportunities
design.
Langmuir,
Journal Year:
2022,
Volume and Issue:
38(6), P. 2117 - 2131
Published: Feb. 1, 2022
Here,
an
S-scheme
heterojunction
was
constructed
on
the
basis
of
modification
a
Ni-based
metal-organic
framework
(Ni-MOF)
by
different
in
situ
treatment
strategies.
First,
NiS2,
NiO,
and
Ni2P
were
derived
surface
Ni-MOF
through
sulfonation,
oxidation,
phosphatizing
treatments.
They
can
efficiently
accept
electrons
from
conduction
band
as
trap
centers,
thus
improving
hydrogen
production
activity.
Additionally,
makes
electronegativity
Ni-MOF/P
stronger
than
that
original
Ni-MOF,
which
enhance
absorption
protons,
promoting
evolution
reaction.
Next,
successfully
built
coupling
2D
CeO2
with
Ni-MOF/P.
The
maximum
rate
hybrid
catalyst
(6.337
mmol
g-1
h-1)
is
14.18
times
untreated
due
to
full
utilization
photo-induced
electrons.
Finally,
probable
mechanism
proposed
analyzing
series
characterization
results
density
functional
theory
(DFT)
calculation.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(27)
Published: April 27, 2022
Photoexcited
dynamic
modulation,
maximizing
the
effective
utilization
of
photoinduced
electron-hole
pairs,
dominates
multiple
electrons-involving
reduction
pathways
for
terminal
CH4
evolution
during
CO2
photoreduction.
Yet,
site-specific
regulation
directional
charge
transfer
by
modification
an
S-scheme
heterojunction
has
seldom
been
discussed.
Herein,
atomic-level
tailoring
strategy
anchoring
single-atomic
Co
into
CeO2
co-catalyst
rather
than
carbon
nitride
supports,
which
can
selectively
favor
-to-CH4
photoreduction,
is
reported.
Through
in
situ
tracking
investigations,
this
study
identifies
that
surface
Co-embedded
bimetallic
CeCo
conjunction
key
feature
driving
a
strong
interconnection
dynamical
states
through
heterojunctions.
The
co-catalysts
demonstrated
to
have
critical
effect
on
control,
accelerating
electrons
from
donations
hubs,
thereby
promotes
electronic
transferability
formation.
As
result,
unprecedented
yield
(181.7
µmol
g-1
)
obtained
with
high
turnover
number
(411.4)
fully
gas-solid
reaction,
demonstrating
its
potential
toward
targeted
formation
without
adding
any
sacrificial
agent.
Small,
Journal Year:
2023,
Volume and Issue:
19(27)
Published: March 25, 2023
Abstract
In
recent
years,
photocatalysis
has
received
increasing
attention
in
alleviating
energy
scarcity
and
environmental
treatment,
graphite
carbon
nitride
(g‐C
3
N
4
)
is
used
as
an
ideal
photocatalyst.
However,
it
still
remains
numerous
challenges
to
obtain
the
desirable
photocatalytic
performance
of
intrinsic
g‐C
.
Functional
group
functionalization,
formed
by
introducing
functional
groups
into
bulk
structure,
one
common
modification
techniques
modulate
carrier
dynamics
increases
number
active
sites,
offering
new
opportunities
break
limits
for
structure‐to‐performance
relationship
Nevertheless,
general
overview
advance
less
reported
yet.
order
better
understand
at
molecular
level,
a
review
latest
development
urgently
needed.
this
review,
terms
structures,
properties,
activity
mainly
focused,
well
their
mechanism
reaction
from
level
insights
explained.
Second,
progress
application
introduced
examples
are
given.
Finally,
difficulties
presented,
based
on
this,
outlook
future
research
direction
shown.
Advanced Science,
Journal Year:
2022,
Volume and Issue:
10(4)
Published: Nov. 14, 2022
The
identity
of
charge
transfer
process
at
the
heterogeneous
interface
plays
an
important
role
in
improving
stability,
activity,
and
selectivity
heterojunction
catalysts.
And,
situ
irradiation
X-ray
photoelectron
spectroscopy
(XPS)
coupled
with
UV
light
optical
fiber
measurement
setup
is
developed
to
monitor
observe
between
heterojunction.
However,
in-depth
relationship
binding
energy
wavelength
missing
based
on
fact
that
incident
formed
by
coupling
different
wavelengths.
Furthermore,
a
quantitative
understanding
numbers
remains
elusive.
Herein,
g-C3
N4
/SnO2
model
catalyst,
wavelength-dependent
Boltzmann
function
describe
changes
through
utilizing
continuously
adjustable
monochromatic
XPS
technique
established.
Using
this
method,
study
further
reveals
electrons
number
can
be
readily
calculated
forming
asymptotic
model.
This
methodology
provides
blueprint
for
deep
charge-transfer
rules
facilitates
future
development
highly
active
advanced
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(7), P. 9221 - 9230
Published: Feb. 9, 2023
Photocatalytic
reduction
of
CO2
into
valuable
hydrocarbon
fuels
is
one
the
green
ways
to
solve
energy
problem
and
achieve
carbon
neutrality.
Exploring
photocatalyst
with
low
toxicity
high-efficiency
key
realize
it.
Here
we
report
a
lead-free
halide
perovskite-based
0D/2D
Cs3Bi2Br9/Bi2WO6
(CBB/BWO)
S-scheme
heterojunction
for
photoreduction,
prepared
by
facile
electrostatic
self-assembly
approach.
The
CBB/BWO
shows
superior
photoreduction
under
visible
light
CO
generation
rate
220.1
μmol·g–1·h–1,
which
∼115.8
∼18.5
times
higher
than
that
Cs3Bi2Br9
perovskite
quantum
dots
(CBB
PQDS)
Bi2WO6
nanosheets
(BWO
NS),
respectively.
improved
photocatalytic
activity
can
be
attributed
tight
structure
charge
transfer
pathway
between
PQDS
atomic
layers
NS,
shortens
transmission
distance
photogenerated
carriers
boosts
efficient
separation
carriers.
This
work
provides
insight
in
manufacturing
potential
photocatalysts
achieving
