Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 11, 2025
Abstract
As
is
well
known,
there
are
problems
such
as
low
utilization
rate
of
photogenerated
holes
and
resource
consumption
sacrificial
agent
in
solar‐driven
photocatalytic
water
splitting
to
hydrogen
technology.
Herein,
WC
quantum
dots
decorated
defective
ZnIn
2
S
4
nanosheets
(DZIS/WCQDs)
dual‐functional
photocatalysts
fabricated.
Its
unique
Schottky
junctions
photothermal
effect
significantly
promote
the
separation
transport
efficiency
carriers,
achieving
synergistic
enhancement
coupled
with
selective
oxidation
benzyl
alcohol
(BA).
Moreover,
can
slowly
induce
decomposition
H
O
produce
·OH,
concentration
·OH
continuously
generated
situ
directly
rapidly
attack
αC─H
bond
BA
improve
benzaldehyde
(BAD)
conversion
selectivity.
Consequently,
DZIS/WCQDs
composites
exhibit
a
surprising
selectivity
85.34%
96.53%
for
BAD,
outstanding
BAD
evolution
rates
12.58
10.53
mmol
g
−1
h
without
co‐catalyst.
Notably,
combining
production
products,
optimal
catalyst
material
at
present.
This
work
opens
up
green
carbon
free
effective
path
solve
high
cost
production.
Abstract
Magic‐sized
nanoclusters
(MSCs)
have
been
attracting
enduring
interest
by
virtue
of
the
quantum
confinement
effect,
discrete
energy
band
structure,
and
enriched
catalytic
active
sites.
Nevertheless,
up
to
date,
exploration
MSCs
artificial
photosystems
fine‐tuning
spatial
vectorial
charge
transfer
in
photoredox
catalysis
so
far
scarcely
reported.
Hence,
we
employed
a
facile
easily
accessible
layer‐by‐layer
(LbL)
assembly
strategy
highly
ordered,
alternately,
periodically
deposit
oppositely
charged
tailor‐made
transition
metal
chalcogenides
(TMCs)
non‐conjugated
polymer
(NCP)
building
blocks
on
MO
substrate,
resulting
MO/(NCP‐TMCs
MSCs)
n
multilayer
heterostructures.
It
is
affirmed
that
ultra‐thin
NCP
uniformly
intercalated
at
interface
every
TMCs
layer
fosters
unidirectional
electron
flow
from
substrate
with
assistance
NCP,
moreover
multilayered
configuration
benefits
establishment
cascade
tandem
route,
synergistically
giving
rise
significantly
enhanced
separation
boosted
solar
water
oxidation
performances
MO/(TMCs
MSCs‐NCP)
heterostructure
under
simulated
light
irradiation.
Our
work
elucidates
specific
roles
as
relay
mediators
photosensitizers,
affording
quintessential
paradigm
rationally
regulate
photocarrier
transport
over
for
conversion.
