Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(20)
Published: Feb. 20, 2023
Abstract
Constructing
MOF‐on‐MOF
heterojunction
with
elaborate
charge
transfer
mechanism
and
interface
is
a
promising
strategy
for
improving
the
photocatalytic
properties
of
MOFs.
Herein,
Step‐scheme
(S‐scheme)
MIL‐125‐NH
2
@CoFe
Prussian
blue
analogue
(PBA)
reported
first
time.
The
heterostructure
exhibits
sandwich‐like
morphology
hollow
CoFe
PBA
nanocages
selectively
assembled
on
top‐down
surfaces
nanocakes.
Experimental
findings
theoretical
simulation
results
reveal
formation
internal
electric
field
via
interfacial
TiOCo
bonds
at
heterojunction,
providing
driving
force
atomic
transportation
highway
accelerating
S‐scheme
enhancing
redox
performance.
Contributed
further
by
structures
increased
active
site
exposure,
designed
significantly
enhanced
activity
degradation
various
organic
pollutants.
This
study
provides
insights
toward
rational
design
semiconducting
MOF‐based
heterojunctions
improved
properties.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(2)
Published: Sept. 12, 2023
Abstract
Fast
production
of
hydrogen
and
oxygen
in
large
amounts
at
an
economic
rate
is
the
need
hour
to
cater
needs
most
awaited
energy,
a
futuristic
renewable
energy
solution.
Production
through
simple
water
splitting
via
visible
light
photocatalytic
approach
using
sunlight
considered
as
one
promising
sustainable
approaches
for
generating
clean
fuels.
For
this
purpose,
variety
catalytic
techniques
novel
catalysts
have
been
investigated.
Among
these
catalysts,
carbon
nitride
presently
deemed
best
candidates
photocatalysis
due
its
unique
molecular
structure
adequate
visible‐range
bandgap.
Its
bandgap
can
be
further
engineered
by
structural
morphological
manipulation
or
doping/hybridization.
numerous
synthetic
nitrides,
supramolecular
self‐assembly
recently
developed
elegant
bottom‐up
strategies
it
bio‐inspired
provides
facile
eco‐friendly
route
synthesize
high
surface
area
with
superior
features
other
semiconducting
properties.
The
current
review
article
broadly
covers
synthesis
nanostructures
their
water‐splitting
applications
comprehensive
outlook
on
future
directions.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(9)
Published: Nov. 8, 2023
Abstract
Photocatalytic
technology
based
on
carbon
nitride
(C
3
N
4
)
offers
a
sustainable
and
clean
approach
for
hydrogen
peroxide
(H
2
O
production,
but
the
yield
is
severely
limited
by
sluggish
hot
carriers
due
to
weak
internal
electric
field.
In
this
study,
novel
devised
fragmenting
bulk
C
into
smaller
pieces
(CN‐NH
then
subjecting
it
directed
healing
process
create
multiple
order‐disorder
interfaces
‐NaK).
The
resulting
junctions
in
CN‐NH
‐NaK
significantly
boost
charge
dynamics
facilitate
more
spatially
orderly
separated
redox
centers.
As
result,
demonstrates
outstanding
photosynthesis
of
H
via
both
two‐step
single‐electron
one‐step
double‐electron
oxygen
reduction
pathways,
achieving
remarkable
16675
µmol
h
–1
g
,
excellent
selectivity
(>
91%),
prominent
solar‐to‐chemical
conversion
efficiency
exceeding
2.3%.
These
results
surpass
pristine
158
times
outperform
previously
reported
‐based
photocatalysts.
This
work
represents
significant
advancement
catalyst
design
modification
technology,
inspiring
development
efficient
metal‐free
photocatalysts
synthesis
highly
valued
fuels.
