Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 1, 2024
Abstract
Photocatalytic
water
splitting
for
hydrogen
production
represents
a
crucial
approach
obtaining
green
energy
through
artificial
solar
utilization,
offering
sustainable
method
generation
that
helps
mitigate
shortages
and
protect
the
environment.
Among
numerous
photocatalytic
materials,
covalent
organic
frameworks
(COFs)
have
garnered
significant
attention
intensive
study
from
researchers
due
to
their
distinctive
benefits,
such
as
porosity,
pre‐design
capability,
tunability
at
atomic
level.
Significant
advancements
are
made
in
development
of
enhancement
performance,
comprehension
mechanisms.
In
this
review,
recent
COF‐based
spotlighted,
both
half‐reactions
overall
reactions,
with
particular
emphasis
on
rational
design
COF
structures
regulate
materials'
optical
electrical
properties,
well
fundamental
processes
photocatalysis.
Drawing
current
research
field,
existing
challenges,
potential
opportunities
also
discussed
future
development.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(41)
Published: July 8, 2024
For
heterojunction
system,
the
lack
of
stable
interfacial
driving
force
and
definite
charge
transfer
channel
makes
separation
efficiency
unsatisfactory.
The
photoreaction
mechanism
occurring
at
interface
also
receives
less
attention.
Herein,
a
2D/2D
Z-scheme
junction
BiOBr@NiFe-LDH
with
large-area
contact
featured
by
short
hydrogen
bonds
strong
electric
field
(IEF)
is
synthesized,
in
situ
photoinduced
metallic
species
assisting
demonstrated.
between
O
atoms
from
BiOBr
H
NiFe-LDH
induce
significant
redistribution,
establishing
robust
IEF.
Notably,
during
photocatalytic
reaction,
Bi
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(31), P. 20740 - 20750
Published: July 23, 2024
High-entropy
materials
(HEMs)
have
garnered
extensive
attention
owing
to
their
diverse
and
captivating
physicochemical
properties.
Yet,
fine-tuning
morphological
properties
of
HEMs
remains
a
formidable
challenge,
constraining
potential
applications.
To
address
this,
we
present
rapid,
low-energy
consumption
diethylenetriamine
(DETA)-assisted
microwave
hydrothermal
method
for
synthesizing
series
two-dimensional
high-entropy
selenides
(HESes).
Subsequently,
the
obtained
HESes
are
harnessed
photocatalytic
water
splitting.
Noteworthy
is
optimized
HESes,
Cd
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(25)
Published: Feb. 9, 2024
Abstract
It
is
expected
that
the
activity
of
photocatalysts
can
remain
same
or
decrease
as
little
possible
in
photocatalysis
reaction.
Herein,
for
first
time,
a
self‐accelerating
H
2
production
noble‐metal‐free
Cu
O/TpPa‐2‐COF
photocatalyst
reported.
shows
beginning
rate
4.41
mmol
h
−1
g
under
visible
light
illuminance,
while
kept
increasing
to
27.27
after
25
reaction,
which
6.2
times
higher
than
and
reaches
record
high.
confirmed
part
O
situ
transformed
0
photocatalytic
acting
cocatalyst
promotes
separation
photogenerated
charge
carriers.
Further
density
functional
theory
calculations
demonstrate
Schottky
barrier
height
Cu‐Cu
(111)
interface
much
smaller
Pt‐Cu
(111),
supporting
its
more
efficient
effect
with
Pt
cocatalyst.
Energy & Environmental Science,
Journal Year:
2023,
Volume and Issue:
17(2), P. 497 - 509
Published: Dec. 7, 2023
This
perspective
focuses
on
the
controversial
issue
of
S-scheme
electron
transfer.
It
delves
into
theoretical
criteria
and
persistence
driving
force
for
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(51)
Published: Sept. 8, 2023
Abstract
Efficient
charge
carrier
separation
is
widely
recognized
as
crucial
for
effective
photocatalytic
solar
energy
conversion.
Although
certain
covalent
organic
frameworks
(COFs)
exhibit
visible
light
absorption,
rapid
recombination
often
severely
restricts
their
efficiency.
This
study
presents
a
novel
molecular‐engineering
approach
to
enhance
in
2D
substoichiometric
COFs
post‐treatment
with
polar
ketone
molecules.
Remarkably,
through
molecular
engineering,
incorporating
molecules
induces
local
polarization
within
the
COFs,
substantially
improving
hydrogen
evolution
performance.
Specifically,
modified
single‐molecule
junctions
demonstrate
5.6‐fold
increase
efficiency
compared
unmodified
COFs.
Experimental
and
theoretical
investigations
provide
comprehensive
evidence
that
introducing
ketone‐based
delocalization,
thereby
facilitating
efficient
separation,
transfer,
enhanced
dispersion
water.
These
findings
validate
potential
of
fine‐tuning
properties
at
level,
offering
new
prospects
artificial
photosynthesis.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(4)
Published: Oct. 25, 2023
Abstract
Semiconductor
photocatalytic
technology
holds
promise
in
efficiently
reducing
low
concentrations
of
gaseous
nitric
oxide
(NO).
However,
the
suboptimal
selectivity
NO
removal,
leading
to
undesired
production
2
byproducts,
poses
a
challenge.
In
this
study,
defective
CdS/Na
Ti
3
O
7
heterostructure
is
rationally
designed
with
strong
electronic
interaction
and
intimate
interface
contact
for
promoting
charge
transfer
kinetics.
This
design
refines
reactive
oxygen
species
(ROS)
generation,
resulting
an
impressive
81%
elimination
99.7%
toward
nitrates.
Detailed
mechanistic
studies
reveal
intriguing
catalysis
scenario
which
reactant
molecules
are
selectively
adsorbed
activated
at
different
sites.
Anionic
vacancies
on
surface
render
activation
molecular
superoxide
radicals
(O
−
)
species.
Furthermore,
intrinsic
basicity
vacancy
sites
Na
cocatalyst
facilitate
capture
acidic
nitrogen
oxides
(NO
x
as
nitrate
species,
contributing
enhanced
catalytic
activity
selectivity.
As
result,
anionic
basic
over
synergistically
regulate
oxidation
pathway,
refining
products
remarkable
These
insights
guide
development
advanced
systems
environmental
remediation,
highlighting
importance
managing
ROS
efficient
pollutant
removal.
