Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(40)
Published: July 1, 2024
Abstract
Rare
earth
vanadates
are
promising
for
solar‐to‐fuel
conversions,
yet
their
photocatalytic
efficiency
is
limited
by
the
substantial
recombination
of
photo‐generated
carriers.
Constructing
heterojunctions
recognized
as
an
effective
approach
to
improving
charge
carrier
separation
in
vanadates.
Nonetheless,
inefficient
transfer
often
results
from
poor
quality
interfaces
and
non‐directional
within
these
heterojunctions.
Herein,
S‐scheme
AgInS
2
/CeVO
4
@Biochar
x
(AIS/CV@C
)
heterojunction
photocatalyst
designed
synthesized
through
a
straightforward
freeze‐drying
calcination
three‐step
process,
aimed
at
co‐production
xylonic
acid
carbon
monoxide
(CO)
xylose.
The
AIS/CV@C
achieves
optimal
yield
67.74%
CO
release
29.76
µmol
enhanced
performance
attributed
three
key
factors:
I)
high‐quality
interface
intimate
contact
significantly
reduce
undesirable
carriers
recombination,
II)
staggered
band
structures
directed
notably
improve
spatial
separation/migration,
III)
incorporation
biochar
boosts
conductivity
heterojunction.
This
work
presents
method
fabricating
vanadate
heterojunctions,
highlighting
importance
interfacial
amplifying
performance.
